Release 0.13.3

Update ru.po

See merge request !25

AUTHORS

@@ -24,6 +24,11 @@ Contributors:
   Jeff Blake (https://gitlab.com/u/berkley4) : more mouse event handlers
   Vladimir <vladimir-csp@yandex.ru> : translations, bug reports
   Christophe D. <stophe72.d@gmail.com> : non-rectangular borders
+  Benoit Averty : taskbar enhancements
+  Justin Jacobs : tint2conf fixes
+  Oskari Rauta : separator plugin, gradients
+  Michael Messmore : Support for Path in .desktop files
+  Matthew Otnel : config option systray_name_filter
 
 Translations:
   Bosnian:

CMakeLists.txt

@@ -1,5 +1,5 @@
 project( tint2 )
-cmake_minimum_required( VERSION 2.6 )
+cmake_minimum_required( VERSION 2.8.5 )
 
 option( ENABLE_BATTERY "Enable battery status plugin" ON )
 option( ENABLE_TINT2CONF "Enable tint2conf build, a GTK+2 theme configurator for tint2" ON )
@@ -13,6 +13,14 @@ if( CMAKE_SYSTEM_NAME STREQUAL "Linux" )
   option( ENABLE_UEVENT "Kernel event handling support" ON )
 endif( CMAKE_SYSTEM_NAME STREQUAL "Linux" )
 
+include( GNUInstallDirs )
+if(NOT docdir)
+  set(docdir ${CMAKE_INSTALL_DOCDIR})
+endif()
+if(NOT htmldir)
+  set(htmldir ${docdir}/html)
+endif()
+
 include( FindPkgConfig )
 include( CheckLibraryExists )
 include( CheckCSourceCompiles )
@@ -74,7 +82,13 @@ if( NOT IMLIB_BUILD_WITH_X )
   message( FATAL_ERROR "Imlib is not built with X support" )
 endif( NOT IMLIB_BUILD_WITH_X )
 
-add_definitions( -D_GNU_SOURCE )
+
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  add_definitions( -D_POSIX_C_SOURCE=200809L -D_BSD_SOURCE -D_DEFAULT_SOURCE )
+else(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  add_definitions( -D_WITH_GETLINE )
+endif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+
 
 include_directories( ${PROJECT_BINARY_DIR}
                      src
@@ -87,6 +101,7 @@ include_directories( ${PROJECT_BINARY_DIR}
                      src/util
                      src/execplugin
                      src/freespace
+                     src/separator
                      ${X11_INCLUDE_DIRS}
                      ${PANGOCAIRO_INCLUDE_DIRS}
                      ${PANGO_INCLUDE_DIRS}
@@ -114,11 +129,15 @@ set( SOURCES src/config.c
              src/tooltip/tooltip.c
              src/execplugin/execplugin.c
              src/freespace/freespace.c
+             src/separator/separator.c
+             src/tint2rc.c
              src/util/area.c
              src/util/common.c
              src/util/strnatcmp.c
              src/util/timer.c
              src/util/cache.c
+             src/util/color.c
+             src/util/gradient.c
              src/util/window.c )
 
 if( ENABLE_BATTERY )
@@ -190,17 +209,12 @@ endif( ENABLE_TINT2CONF )
 
 if( ENABLE_ASAN )
   SET(ASAN_C_FLAGS " -O0 -g3 -gdwarf-2 -fsanitize=address -fno-common -fno-omit-frame-pointer -rdynamic -Wshadow")
-  SET(ASAN_L_FLAGS " -O0 -g3 -gdwarf-2 -fsanitize=address -fno-common -fno-omit-frame-pointer -rdynamic ")
+  SET(ASAN_L_FLAGS " -O0 -g3 -gdwarf-2 -fsanitize=address -fno-common -fno-omit-frame-pointer -rdynamic -fuse-ld=gold ")
 else()
   SET(ASAN_C_FLAGS "")
   SET(ASAN_L_FLAGS "")
 endif()
 
-set( MANDIR share/man CACHE PATH "Directory for man pages" )
-set( DATADIR share CACHE PATH "Directory for shared data" )
-set( SYSCONFDIR /etc CACHE PATH "Directory for configuration files" )
-set( DOCDIR share/doc/tint2 CACHE PATH "Directory for documentation files" )
-
 add_custom_target( version ALL "${PROJECT_SOURCE_DIR}/get_version.sh" "\"${PROJECT_SOURCE_DIR}\"" )
 
 link_directories( ${X11_LIBRARY_DIRS}
@@ -235,18 +249,18 @@ endif( RT_LIBRARY )
 target_link_libraries( tint2 m )
 
 add_dependencies( tint2 version )
-set_target_properties( tint2 PROPERTIES COMPILE_FLAGS "-Wall -Wpointer-arith -fno-strict-aliasing -pthread -std=c99 ${ASAN_C_FLAGS}" )
+set_target_properties( tint2 PROPERTIES COMPILE_FLAGS "-Wall -Wpointer-arith -fno-strict-aliasing -pthread -std=c11 ${ASAN_C_FLAGS}" )
 set_target_properties( tint2 PROPERTIES LINK_FLAGS "-pthread -fno-strict-aliasing ${ASAN_L_FLAGS} ${BACKTRACE_L_FLAGS}" )
 
 install( TARGETS tint2 DESTINATION bin )
-install( FILES tint2.svg DESTINATION ${DATADIR}/icons/hicolor/scalable/apps )
-install( FILES tint2.desktop DESTINATION ${DATADIR}/applications )
-install( CODE "execute_process(COMMAND gtk-update-icon-cache -f -t ${DATADIR}/icons/hicolor WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX})" )
-install( FILES themes/tint2rc DESTINATION ${SYSCONFDIR}/xdg/tint2 )
-install( FILES default_icon.png DESTINATION ${DATADIR}/tint2 )
-install( FILES AUTHORS ChangeLog README.md doc/tint2.md doc/manual.html doc/readme.html DESTINATION ${DOCDIR} )
-install( DIRECTORY doc/images DESTINATION ${DOCDIR} )
-install( FILES doc/tint2.1 DESTINATION ${MANDIR}/man1 )
+install( FILES tint2.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps )
+install( FILES tint2.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )
+install( FILES themes/tint2rc DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/xdg/tint2 )
+install( FILES default_icon.png DESTINATION ${CMAKE_INSTALL_DATADIR}/tint2 )
+install( FILES AUTHORS ChangeLog README.md doc/tint2.md DESTINATION ${docdir} )
+install( FILES doc/manual.html doc/readme.html DESTINATION ${htmldir} )
+install( DIRECTORY doc/images DESTINATION ${htmldir} )
+install( FILES doc/tint2.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1 )
 if( ENABLE_EXTRA_THEMES )
   add_subdirectory(themes)
 endif( ENABLE_EXTRA_THEMES )

CONTRIBUTING.md

@@ -0,0 +1 @@
+Please read https://gitlab.com/o9000/tint2/wikis/Development

ChangeLog

@@ -1,6 +1,35 @@
-2016-08-07 master
+2017-03-25 0.13.3
+- Fixes:
+  - Fixed autohide for non-bottom panels (issue #632)
+  - Translations updated (contributed by Vladimir)
+
+2017-03-19 0.13.2
+- Fixes:
+  - Fixed compilation under FreeBSD
+
+2017-03-12 0.13.1
+- Fixes:
+  - Fixed compilation with new glibc (issue #625)
+  - Fixed regression in distributing size between taskbars (issue #628)
+  - Create ~/.config dir if it does not exist (issue #629)
+- Enhancements:
+  - New config option systray_name_filter to hide hide specific apps from the system tray (contributed by Matthew Otnel)
+  - Tint2conf: minor improvements
+
+2017-03-04 0.13
+- Fixes:
+  - Ignore monitors with size 0, fixing crash (issue #618)
+  - Battery: support Asus Chromebook Flip C100PA (issue #616)
+  - Panel: do not change struts (available screen size) when shown in autohide mode (issue #619)
+  - tint2conf: executor tooltips are now correctly disabled when text config value is empty (contributed by Justin Jacobs)
 - Enhancements:
   - Desktop files (shortcuts) used in launcher are reloaded on click, in case the file has changed
+  - New config option taskbar_hide_if_empty to hide an empty taskbar in multi_desktop mode (contributed by Benoit Averty)
+  - Gradient backgrounds (contributed by Oskari Rauta)
+  - New option: panel_shrink (fixes issue #333)
+  - Support for Path in .desktop files (contributed by Michael Messmore)
+  - Tint2conf start up is much faster
+- New plugin: separator (contributed by Oskari Rauta)
 
 2016-08-02 0.12.12
 - Fixes:

README.md

@@ -1,14 +1,14 @@
-# Latest stable release: 0.12.12
-Changes: https://gitlab.com/o9000/tint2/blob/0.12.12/ChangeLog
+# Latest stable release: 0.13.3
+Changes: https://gitlab.com/o9000/tint2/blob/0.13.3/ChangeLog
 
 Documentation: [doc/tint2.md](doc/tint2.md)
 
-Compile it with (see also [dependencies](https://gitlab.com/o9000/tint2/wikis/Install#dependencies)):
+Compile it with (after you install the [dependencies](https://gitlab.com/o9000/tint2/wikis/Install#dependencies)):
 
 ```
 git clone https://gitlab.com/o9000/tint2.git
 cd tint2
-git checkout 0.12.12
+git checkout 0.13.3
 mkdir build
 cd build
 cmake ..
@@ -57,10 +57,16 @@ tint2 is a simple panel/taskbar made for modern X window managers. It was specif
   * [Other frequently asked questions](https://gitlab.com/o9000/tint2/wikis/FAQ)
   * [Obtain a stack trace when tint2 crashes](https://gitlab.com/o9000/tint2/wikis/Debug)
 
+# Known issues
+
+  * Graphic glitches on Intel graphics cards can be avoided by changing the acceleration method to UXA ([issue 595](https://gitlab.com/o9000/tint2/issues/595))
+  * Window managers that do not follow exactly the EWMH specification might not interact well with tint2 (known issues for [awesome](https://gitlab.com/o9000/tint2/issues/385), [bspwm](https://gitlab.com/o9000/tint2/issues/524). [openbox-multihead](https://gitlab.com/o9000/tint2/issues/456))
+  * Full transparency requires a compositor such as Compton (if not provided already by the window manager, as in Compiz/Unity, KDE or XFCE)
+
 # How can I help out?
 
   * Report bugs and ask questions on the [issue tracker](https://gitlab.com/o9000/tint2/issues);
-  * Contribute to the development by helping us fix bugs and suggesting new features.
+  * Contribute to the development by helping us fix bugs and suggesting new features. Please read the contribution guide: [CONTRIBUTING.md](CONTRIBUTING.md)
 
 # Links
   * Home page: https://gitlab.com/o9000/tint2
@@ -78,3 +84,10 @@ tint2 is a simple panel/taskbar made for modern X window managers. It was specif
 ## Various configs:
 
 ![screenshot](https://gitlab.com/o9000/tint2/wikis/screenshot.png)
+
+## Demos
+
+* [Compact panel, separator, color gradients](https://gitlab.com/o9000/tint2/wikis/whats-new-0.13.0.gif)
+* [Executor](https://gitlab.com/o9000/tint2/wikis/whats-new-0.12.4.gif)
+* [Mouse over effects](https://gitlab.com/o9000/tint2/wikis/whats-new-0.12.3.gif)
+* [Distribute size between taskbars, freespace](https://gitlab.com/o9000/tint2/wikis/whats-new-0.12.gif)

README.source

@@ -1,3 +0,0 @@
-DEPENDENCIES:
-cairo (with X support), pango, glib2, libX11, libXinerama, libXrandr, libXrender, libXcomposite, libXdamage, imlib2 (with X support)
-you might need -dev packages on Debian

doc/manual.html

@@ -218,6 +218,7 @@ It was specifically made for Openbox but it should also work with other window m
 <ul>
 <li><p><a href="#introduction">Introduction</a></p></li>
 <li><p><a href="#backgrounds-and-borders">Backgrounds and borders</a></p></li>
+<li><p><a href="#gradients">Gradients</a></p></li>
 <li><p><a href="#panel">Panel</a></p></li>
 <li><p><a href="#launcher">Launcher</a></p></li>
 <li><p><a href="#taskbar-pager">Taskbar/Pager</a></p></li>
@@ -228,6 +229,7 @@ It was specifically made for Openbox but it should also work with other window m
 <li><p><a href="#tooltip">Tooltip</a></p></li>
 <li><p><a href="#battery">Battery</a></p></li>
 <li><p><a href="#executor">Executor</a></p></li>
+<li><p><a href="#separator">Separator</a></p></li>
 <li><p><a href="#example-configuration">Example configuration</a></p></li>
 </ul>
 <h3 id="introduction">Introduction<a name="introduction" href="#introduction" class="md2man-permalink" title="permalink"></a></h3><p>These are instructions for configuring tint2 directly by editing its config file.
@@ -286,7 +288,67 @@ task_active_background_id = 2
 systray_background_id = 0
 clock_background_id = 0
 </code></pre>
-<p>Identifier 0 refers to a special background which is fully transparent, identifier 1 applies the first background defined in the config file etc.</p><h3 id="panel">Panel<a name="panel" href="#panel" class="md2man-permalink" title="permalink"></a></h3>
+<p>Identifier 0 refers to a special background which is fully transparent, identifier 1 applies the first background defined in the config file etc.</p><h3 id="gradients">Gradients<a name="gradients" href="#gradients" class="md2man-permalink" title="permalink"></a></h3><p>(Available since 0.13.0)</p><p>Backgrounds also allow specifying gradient layers
+that are drawn on top of the solid color background.</p><p>First the user must define one or more gradients in the config file,
+each starting with <code>gradient = TYPE</code>. These must be added before backgrounds.</p><p>Then gradients can be added by index to backgrounds,
+using the <code>gradient_id = INDEX</code>, <code>gradient_id_hover = INDEX</code> and
+<code>gradient_id_pressed = INDEX</code>, where <code>INDEX</code> is
+the gradient index, starting from 1.</p><h4 id="gradient-types">Gradient types<a name="gradient-types" href="#gradient-types" class="md2man-permalink" title="permalink"></a></h4><p>Gradients vary the color between fixed control points:
+* vertical gradients: top-to-bottom;
+* horizontal gradients: left-to-right;
+* radial gradients: center-to-corners.</p><p>The user must specify the start and end colors, and can optionally add extra color stops in between
+using the <code>color_stop</code> option, as explained below.</p><h5 id="vertical-gradient-with-color-varying-from-the-top-edge-to-the-bottom-edge-two-colors">Vertical gradient, with color varying from the top edge to the bottom edge, two colors<a name="vertical-gradient-with-color-varying-from-the-top-edge-to-the-bottom-edge-two-colors" href="#vertical-gradient-with-color-varying-from-the-top-edge-to-the-bottom-edge-two-colors" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code>gradient = vertical
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+</code></pre>
+<h5 id="horizontal-gradient-with-color-varying-from-the-left-edge-to-the-right-edge-two-colors">Horizontal gradient, with color varying from the left edge to the right edge, two colors<a name="horizontal-gradient-with-color-varying-from-the-left-edge-to-the-right-edge-two-colors" href="#horizontal-gradient-with-color-varying-from-the-left-edge-to-the-right-edge-two-colors" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code>gradient = horizontal
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+</code></pre>
+<h5 id="radial-gradient-with-color-varying-from-the-center-to-the-corner-two-colors">Radial gradient, with color varying from the center to the corner, two colors:<a name="radial-gradient-with-color-varying-from-the-center-to-the-corner-two-colors" href="#radial-gradient-with-color-varying-from-the-center-to-the-corner-two-colors" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code>gradient = radial
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+</code></pre>
+<h5 id="adding-extra-color-stops-0-and-100-remain-fixed-more-colors-at-x-between-the-start-and-end-control-points">Adding extra color stops (0% and 100% remain fixed, more colors at x% between the start and end control points)<a name="adding-extra-color-stops-0-and-100-remain-fixed-more-colors-at-x-between-the-start-and-end-control-points" href="#adding-extra-color-stops-0-and-100-remain-fixed-more-colors-at-x-between-the-start-and-end-control-points" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code>color_stop = percentage #rrggbb opacity
+</code></pre>
+<h4 id="gradient-examples">Gradient examples<a name="gradient-examples" href="#gradient-examples" class="md2man-permalink" title="permalink"></a></h4><pre class="highlight plaintext"><code># Gradient 1: thin film effect
+gradient = horizontal
+start_color = #111122 30
+end_color = #112211 30
+color_stop = 60 #221111 30
+
+# Gradient 2: radial glow
+gradient = radial
+start_color = #ffffff 20
+end_color = #ffffff 0
+
+# Gradient 3: elegant black
+gradient = vertical
+start_color = #444444 100
+end_color = #222222 100
+
+# Gradient 4: elegant black
+gradient = horizontal
+start_color = #111111 100
+end_color = #222222 100
+
+# Background 1: Active desktop name
+rounded = 2
+border_width = 1
+border_sides = TBLR
+background_color = #555555 10
+border_color = #ffffff 60
+background_color_hover = #555555 10
+border_color_hover = #ffffff 60
+background_color_pressed = #555555 10
+border_color_pressed = #ffffff 60
+gradient_id = 3
+gradient_id_hover = 4
+gradient_id_pressed = 2
+
+[...]
+</code></pre>
+<h3 id="panel">Panel<a name="panel" href="#panel" class="md2man-permalink" title="permalink"></a></h3>
 <ul>
 <li><p><code>panel_items = LTSBC</code> defines the items tint2 will show and the order of those items. Each letter refers to an item, defined as:</p>
 <ul>
@@ -295,8 +357,9 @@ clock_background_id = 0
 <li><code>S</code> shows the Systray (also called notification area)</li>
 <li><code>B</code> shows the Battery status</li>
 <li><code>C</code> shows the Clock</li>
-<li><code>F</code> adds an extensible spacer (freespace). Has no effect if <code>T</code> is also present. <em>(since 0.12)</em></li>
+<li><code>F</code> adds an extensible spacer (freespace). You can specify more than one. Has no effect if <code>T</code> is also present. <em>(since 0.12)</em></li>
 <li><code>E</code> adds an executor plugin. You can specify more than one. <em>(since 0.12.4)</em></li>
+<li><code>:</code> adds a separator. You can specify more than one. <em>(since 0.13.0)</em></li>
 </ul>
 <p>For example, <code>panel_items = STC</code> will show the systray, the taskbar and the clock (from left to right).</p></li>
 <li><p><code>panel_monitor = monitor (all or 1 or 2 or ...)</code> : Which monitor tint2 draws the panel on</p>
@@ -325,7 +388,8 @@ panel_size = 94% 30
 </code></pre>
 
 <ul>
-<li><code>panel_margin = horizontal_margin vertical_margin</code> : The margins define the distance between the panel and the horizontal/vertical monitor edge. Use <code>0</code> to obtain a panel with the same size as the edge of the monitor (no margin).</li>
+<li><p><code>panel_shrink = boolean (0 or 1)</code> : If set to 1, the panel will shrink to a compact size dynamically. <em>(since 0.13)</em></p></li>
+<li><p><code>panel_margin = horizontal_margin vertical_margin</code> : The margins define the distance between the panel and the horizontal/vertical monitor edge. Use <code>0</code> to obtain a panel with the same size as the edge of the monitor (no margin).</p></li>
 </ul>
 <p><img src="images/panel_size_margin.jpg" alt=""></p>
 <ul>
@@ -380,7 +444,8 @@ panel_size = 94% 30
 <li>You can switch between virtual desktops.</li>
 </ul></li>
 </ul></li>
-<li><p><code>taskbar_distribute_size = boolean (0 or 1)</code> :  If enabled, in multi-desktop mode distributes between taskbars the available size proportionally to the number of tasks. Default: disabled. <em>(since 0.12)</em></p></li>
+<li><p><code>taskbar_hide_if_empty = boolean (0 or 1)</code> : If enabled, in multi-desktop mode the taskbars corresponding to empty desktops different from the current desktop are hidden. <em>(since 0.13)</em></p></li>
+<li><p><code>taskbar_distribute_size = boolean (0 or 1)</code> : If enabled, in multi-desktop mode distributes between taskbars the available size proportionally to the number of tasks. Default: disabled. <em>(since 0.12)</em></p></li>
 <li><p><code>taskbar_padding = horizontal_padding vertical_padding spacing</code></p></li>
 </ul>
 <p><img src="images/taskbar_padding.jpg" alt=""></p>
@@ -409,7 +474,7 @@ panel_size = 94% 30
 </ul>
 <h1 id="taskbar-buttons">Taskbar buttons<a name="taskbar-buttons" href="#taskbar-buttons" class="md2man-permalink" title="permalink"></a></h1><p>The following options configure the task buttons in the taskbar:</p>
 <ul>
-<li><p><code>task_icon = boolean (0 or 1)</code> : Whether to display the task icon.</p></li>
+<li><p><code>task_icon = boolean (0 or 1)</code> : Whether to display the task icon. There is no explicit option to control the task icon size; it depends on the vertical padding set with <code>task_padding</code>.</p></li>
 <li><p><code>task_text = boolean (0 or 1)</code> : Whether to display the task text.</p></li>
 <li><p><code>task_centered = boolean (0 or 1)</code> : Whether the task text is centered.</p></li>
 <li><p><code>task_tooltip = boolean (0 or 1)</code> : Whether to show tooltips for tasks.</p></li>
@@ -457,6 +522,7 @@ panel_size = 94% 30
 <li><p><code>systray_icon_size = max_icon_size</code> : Set the maximum system tray icon size to <code>number</code>. Set to <code>0</code> for automatic icon sizing.</p></li>
 <li><p><code>systray_icon_asb = alpha (0 to 100) saturation (-100 to 100) brightness (-100 to 100)</code> : Adjust the systray icons color and transparency.</p></li>
 <li><p><code>systray_monitor = integer (1, 2, ...)</code> :  On which monitor to draw the systray. The first monitor is <code>1</code>. <em>(since 0.12)</em></p></li>
+<li><p><code>systray_name_filter = string</code> :  Regular expression to identify icon names to be hidden. For example, <code>^audacious$</code> will hide icons with the exact name <code>audacious</code>, while <code>aud</code> will hide any icons having <code>aud</code> in the name. <em>(since 0.13.1)</em></p></li>
 </ul>
 <h3 id="clock">Clock<a name="clock" href="#clock" class="md2man-permalink" title="permalink"></a></h3>
 <ul>
@@ -568,15 +634,15 @@ execp_cache_icon = 1
 execp_continuous = 2
 </code></pre>
 <h5 id="round-trip-time-to-the-gateway-refreshed-every-second">Round-trip time to the gateway, refreshed every second<a name="round-trip-time-to-the-gateway-refreshed-every-second" href="#round-trip-time-to-the-gateway-refreshed-every-second" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code>execp = new
-execp_command = ping -i 1 -W 1 -O -D -n $(ip route | grep default | grep via | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*') | awk '/no/ { print "&lt;span foreground=\"#faa\"&gt;timeout&lt;/span&gt;"; fflush(); }; /time=/ { gsub(/time=/, "", $8); printf "&lt;span foreground=\"#7af\"&gt;%3.0f %s&lt;/span&gt;\n", $8, $9; fflush(); } '
-execp_continuous = 1
+execp_command = ping -i 1 -c 1 -W 1 -O -D -n $(ip route | grep default | grep via | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*') | awk '/no/ { print "&lt;span foreground=\"#faa\"&gt;timeout&lt;/span&gt;"; fflush(); }; /time=/ { gsub(/time=/, "", $8); printf "&lt;span foreground=\"#7af\"&gt;%3.0f %s&lt;/span&gt;\n", $8, $9; fflush(); } '
+execp_continuous = 0
 execp_interval = 1
 execp_markup = 1
 </code></pre>
 <h5 id="memory-usage">Memory usage<a name="memory-usage" href="#memory-usage" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code>execp = new
-execp_command = free -s 2 | awk '/^-/ { printf "Mem: '$(free -h | awk '/^Mem:/ { print $2 }')' %.0f%\n", 100*$3/($3+$4); fflush(stdout) }'
-execp_interval = 1
-execp_continuous = 1
+execp_command = free | awk '/^-/ { printf "Mem: '$(free -h | awk '/^Mem:/ { print $2 }')' %.0f%%\n", 100*$3/($3+$4); fflush(stdout) }'
+execp_interval = 5
+execp_continuous = 0
 </code></pre>
 <h5 id="network-load">Network load<a name="network-load" href="#network-load" class="md2man-permalink" title="permalink"></a></h5><pre class="highlight plaintext"><code># Note the use of "stdbuf -oL" to force the program to flush the output line by line.
 execp = new
@@ -584,6 +650,15 @@ execp_command = stdbuf -oL bwm-ng -o csv -t 1000 | awk -F ';' '/total/ { printf
 execp_continuous = 1
 execp_interval = 1
 </code></pre>
+<h3 id="separator">Separator<a name="separator" href="#separator" class="md2man-permalink" title="permalink"></a></h3>
+<ul>
+<li><p><code>separator = new</code> : Begins the configuration of a new separator. Multiple such plugins are supported; just use multiple <code>:</code>s in <code>panel_items</code>. <em>(since 0.13.0)</em></p></li>
+<li><p><code>separator_background_id = integer</code> : Which background to use. <em>(since 0.13.0)</em></p></li>
+<li><p><code>separator_color = color opacity</code> : The foreground color. <em>(since 0.13.0)</em></p></li>
+<li><p><code>separator_style = [empty | line | dots]</code> : The separator style. <em>(since 0.13.0)</em></p></li>
+<li><p><code>separator_size = integer</code> : The thickness of the separator. Does not include the border and padding. For example, if the style is <code>line</code>, this is the line thickness; if the style is <code>dots</code>, this is the dot&#39;s diameter. <em>(since 0.13.0)</em></p></li>
+<li><p><code>separator_padding = side_padding cap_padding</code> : The padding to add to the sides of the separator, in pixels. <em>(since 0.13.0)</em></p></li>
+</ul>
 <h3 id="example-configuration">Example configuration<a name="example-configuration" href="#example-configuration" class="md2man-permalink" title="permalink"></a></h3><pre class="highlight plaintext"><code>#---------------------------------------------
 ## TINT2 CONFIG FILE
 #---------------------------------------------
@@ -641,7 +716,7 @@ task_font = sans 7
 task_font_color = #ffffff 70
 task_background_id = 3
 task_icon_asb = 100 0 0
-## replace STATUS by 'urgent', 'active' or 'iconfied'
+## replace STATUS by 'urgent', 'active' or 'iconified'
 #task_STATUS_background_id = 2
 #task_STATUS_font_color = #ffffff 85
 #task_STATUS_icon_asb = 100 0 0

doc/readme.html

@@ -199,9 +199,9 @@ pre {
 </style>
 </head>
 <body>
-<h1 id="latest-stable-release-0-12-11"><span class="md2man-title">Latest</span> <span class="md2man-section">stable</span> <span class="md2man-date">release:</span> <span class="md2man-source">0.12.11</span><a name="latest-stable-release-0-12-11" href="#latest-stable-release-0-12-11" class="md2man-permalink" title="permalink"></a></h1><p>Changes: <a href="https://gitlab.com/o9000/tint2/blob/0.12.11/ChangeLog">https://gitlab.com/o9000/tint2/blob/0.12.11/ChangeLog</a></p><p>Documentation: <a href="manual.html">manual.html</a></p><p>Compile it with (see also <a href="https://gitlab.com/o9000/tint2/wikis/Install#dependencies">dependencies</a>):</p><pre class="highlight plaintext"><code>git clone https://gitlab.com/o9000/tint2.git
+<h1 id="latest-stable-release-0-13-3"><span class="md2man-title">Latest</span> <span class="md2man-section">stable</span> <span class="md2man-date">release:</span> <span class="md2man-source">0.13.3</span><a name="latest-stable-release-0-13-3" href="#latest-stable-release-0-13-3" class="md2man-permalink" title="permalink"></a></h1><p>Changes: <a href="https://gitlab.com/o9000/tint2/blob/0.13.3/ChangeLog">https://gitlab.com/o9000/tint2/blob/0.13.3/ChangeLog</a></p><p>Documentation: <a href="manual.html">manual.html</a></p><p>Compile it with (after you install the <a href="https://gitlab.com/o9000/tint2/wikis/Install#dependencies">dependencies</a>):</p><pre class="highlight plaintext"><code>git clone https://gitlab.com/o9000/tint2.git
 cd tint2
-git checkout 0.12.11
+git checkout 0.13.3
 mkdir build
 cd build
 cmake ..
@@ -235,10 +235,16 @@ make -j4
 <li><a href="https://gitlab.com/o9000/tint2/wikis/FAQ">Other frequently asked questions</a></li>
 <li><a href="https://gitlab.com/o9000/tint2/wikis/Debug">Obtain a stack trace when tint2 crashes</a></li>
 </ul>
+<h1 id="known-issues">Known issues<a name="known-issues" href="#known-issues" class="md2man-permalink" title="permalink"></a></h1>
+<ul>
+<li>Graphic glitches on Intel graphics cards can be avoided by changing the acceleration method to UXA (<a href="https://gitlab.com/o9000/tint2/issues/595">issue 595</a>)</li>
+<li>Window managers that do not follow exactly the EWMH specification might not interact well with tint2 (known issues for <a href="https://gitlab.com/o9000/tint2/issues/385">awesome</a>, <a href="https://gitlab.com/o9000/tint2/issues/524">bspwm</a>. <a href="https://gitlab.com/o9000/tint2/issues/456">openbox-multihead</a>)</li>
+<li>Full transparency requires a compositor such as Compton (if not provided already by the window manager, as in Compiz/Unity, KDE or XFCE)</li>
+</ul>
 <h1 id="how-can-i-help-out">How can I help out?<a name="how-can-i-help-out" href="#how-can-i-help-out" class="md2man-permalink" title="permalink"></a></h1>
 <ul>
 <li>Report bugs and ask questions on the <a href="https://gitlab.com/o9000/tint2/issues">issue tracker</a>;</li>
-<li>Contribute to the development by helping us fix bugs and suggesting new features.</li>
+<li>Contribute to the development by helping us fix bugs and suggesting new features. Please read the contribution guide: <a href="CONTRIBUTING.md">CONTRIBUTING.md</a></li>
 </ul>
 <h1 id="links">Links<a name="links" href="#links" class="md2man-permalink" title="permalink"></a></h1>
 <ul>
@@ -248,6 +254,12 @@ make -j4
 <li>Downloads: <a href="https://gitlab.com/o9000/tint2-archive/tree/master">https://gitlab.com/o9000/tint2-archive/tree/master</a> or <a href="https://code.google.com/p/tint2/downloads/list">https://code.google.com/p/tint2/downloads/list</a></li>
 <li>Old project location (inactive): <a href="https://code.google.com/p/tint2">https://code.google.com/p/tint2</a></li>
 </ul>
-<h1 id="screenshots">Screenshots<a name="screenshots" href="#screenshots" class="md2man-permalink" title="permalink"></a></h1><h2 id="default-config">Default config:<a name="default-config" href="#default-config" class="md2man-permalink" title="permalink"></a></h2><p><img src="https://gitlab.com/o9000/tint2/uploads/948fa74eca60864352a033580350b4c3/Screenshot_2016-01-23_14-42-57.png" alt="Screenshot_2016-01-23_14-42-57"></p><h2 id="various-configs">Various configs:<a name="various-configs" href="#various-configs" class="md2man-permalink" title="permalink"></a></h2><p><img src="https://gitlab.com/o9000/tint2/wikis/screenshot.png" alt="screenshot"></p>
+<h1 id="screenshots">Screenshots<a name="screenshots" href="#screenshots" class="md2man-permalink" title="permalink"></a></h1><h2 id="default-config">Default config:<a name="default-config" href="#default-config" class="md2man-permalink" title="permalink"></a></h2><p><img src="https://gitlab.com/o9000/tint2/uploads/948fa74eca60864352a033580350b4c3/Screenshot_2016-01-23_14-42-57.png" alt="Screenshot_2016-01-23_14-42-57"></p><h2 id="various-configs">Various configs:<a name="various-configs" href="#various-configs" class="md2man-permalink" title="permalink"></a></h2><p><img src="https://gitlab.com/o9000/tint2/wikis/screenshot.png" alt="screenshot"></p><h2 id="demos">Demos<a name="demos" href="#demos" class="md2man-permalink" title="permalink"></a></h2>
+<ul>
+<li><a href="https://gitlab.com/o9000/tint2/wikis/whats-new-0.13.0.gif">Compact panel, separator, color gradients</a></li>
+<li><a href="https://gitlab.com/o9000/tint2/wikis/whats-new-0.12.4.gif">Executor</a></li>
+<li><a href="https://gitlab.com/o9000/tint2/wikis/whats-new-0.12.3.gif">Mouse over effects</a></li>
+<li><a href="https://gitlab.com/o9000/tint2/wikis/whats-new-0.12.gif">Distribute size between taskbars, freespace</a></li>
+</ul>
 </body>
 </html>

doc/tint2.1

@@ -1,4 +1,4 @@
-.TH TINT2 1 "2016\-05\-22"
+.TH TINT2 1 "2017\-03\-12" 0.13.3
 .SH NAME
 .PP
 tint2 \- lightweight panel/taskbar
@@ -45,6 +45,8 @@ Introduction \[la]#introduction\[ra]
 .IP \(bu 2
 Backgrounds and borders \[la]#backgrounds-and-borders\[ra]
 .IP \(bu 2
+Gradients \[la]#gradients\[ra]
+.IP \(bu 2
 Panel \[la]#panel\[ra]
 .IP \(bu 2
 Launcher \[la]#launcher\[ra]
@@ -65,6 +67,8 @@ Battery \[la]#battery\[ra]
 .IP \(bu 2
 Executor \[la]#executor\[ra]
 .IP \(bu 2
+Separator \[la]#separator\[ra]
+.IP \(bu 2
 Example configuration \[la]#example-configuration\[ra]
 .RE
 .SS Introduction
@@ -171,6 +175,105 @@ clock_background_id = 0
 .RE
 .PP
 Identifier 0 refers to a special background which is fully transparent, identifier 1 applies the first background defined in the config file etc.
+.SS Gradients
+.PP
+(Available since 0.13.0)
+.PP
+Backgrounds also allow specifying gradient layers
+that are drawn on top of the solid color background.
+.PP
+First the user must define one or more gradients in the config file,
+each starting with \fB\fCgradient = TYPE\fR\&. These must be added before backgrounds.
+.PP
+Then gradients can be added by index to backgrounds,
+using the \fB\fCgradient_id = INDEX\fR, \fB\fCgradient_id_hover = INDEX\fR and
+\fB\fCgradient_id_pressed = INDEX\fR, where \fB\fCINDEX\fR is
+the gradient index, starting from 1.
+.SS Gradient types
+.PP
+Gradients vary the color between fixed control points:
+* vertical gradients: top\-to\-bottom;
+* horizontal gradients: left\-to\-right;
+* radial gradients: center\-to\-corners.
+.PP
+The user must specify the start and end colors, and can optionally add extra color stops in between
+using the \fB\fCcolor_stop\fR option, as explained below.
+.SS Vertical gradient, with color varying from the top edge to the bottom edge, two colors
+.PP
+.RS
+.nf
+gradient = vertical
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+.fi
+.RE
+.SS Horizontal gradient, with color varying from the left edge to the right edge, two colors
+.PP
+.RS
+.nf
+gradient = horizontal
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+.fi
+.RE
+.SS Radial gradient, with color varying from the center to the corner, two colors:
+.PP
+.RS
+.nf
+gradient = radial
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+.fi
+.RE
+.SS Adding extra color stops (0% and 100% remain fixed, more colors at x% between the start and end control points)
+.PP
+.RS
+.nf
+color_stop = percentage #rrggbb opacity
+.fi
+.RE
+.SS Gradient examples
+.PP
+.RS
+.nf
+# Gradient 1: thin film effect
+gradient = horizontal
+start_color = #111122 30
+end_color = #112211 30
+color_stop = 60 #221111 30
+
+# Gradient 2: radial glow
+gradient = radial
+start_color = #ffffff 20
+end_color = #ffffff 0
+
+# Gradient 3: elegant black
+gradient = vertical
+start_color = #444444 100
+end_color = #222222 100
+
+# Gradient 4: elegant black
+gradient = horizontal
+start_color = #111111 100
+end_color = #222222 100
+
+# Background 1: Active desktop name
+rounded = 2
+border_width = 1
+border_sides = TBLR
+background_color = #555555 10
+border_color = #ffffff 60
+background_color_hover = #555555 10
+border_color_hover = #ffffff 60
+background_color_pressed = #555555 10
+border_color_pressed = #ffffff 60
+gradient_id = 3
+gradient_id_hover = 4
+gradient_id_pressed = 2
+
+[...]
+.fi
+.RE
 .SS Panel
 .RS
 .IP \(bu 2
@@ -187,9 +290,11 @@ Identifier 0 refers to a special background which is fully transparent, identifi
 .IP \(bu 2
 \fB\fCC\fR shows the Clock
 .IP \(bu 2
-\fB\fCF\fR adds an extensible spacer (freespace). Has no effect if \fB\fCT\fR is also present. \fI(since 0.12)\fP
+\fB\fCF\fR adds an extensible spacer (freespace). You can specify more than one. Has no effect if \fB\fCT\fR is also present. \fI(since 0.12)\fP
 .IP \(bu 2
 \fB\fCE\fR adds an executor plugin. You can specify more than one. \fI(since 0.12.4)\fP
+.IP \(bu 2
+\fB\fC:\fR adds a separator. You can specify more than one. \fI(since 0.13.0)\fP
 .RE
 .PP
 For example, \fB\fCpanel_items = STC\fR will show the systray, the taskbar and the clock (from left to right).
@@ -234,6 +339,8 @@ panel_size = 94% 30
 .RE
 .RS
 .IP \(bu 2
+\fB\fCpanel_shrink = boolean (0 or 1)\fR : If set to 1, the panel will shrink to a compact size dynamically. \fI(since 0.13)\fP
+.IP \(bu 2
 \fB\fCpanel_margin = horizontal_margin vertical_margin\fR : The margins define the distance between the panel and the horizontal/vertical monitor edge. Use \fB\fC0\fR to obtain a panel with the same size as the edge of the monitor (no margin).
 .RE
 .PP
@@ -326,7 +433,9 @@ You can switch between virtual desktops.
 .RE
 .RE
 .IP \(bu 2
-\fB\fCtaskbar_distribute_size = boolean (0 or 1)\fR :  If enabled, in multi\-desktop mode distributes between taskbars the available size proportionally to the number of tasks. Default: disabled. \fI(since 0.12)\fP
+\fB\fCtaskbar_hide_if_empty = boolean (0 or 1)\fR : If enabled, in multi\-desktop mode the taskbars corresponding to empty desktops different from the current desktop are hidden. \fI(since 0.13)\fP
+.IP \(bu 2
+\fB\fCtaskbar_distribute_size = boolean (0 or 1)\fR : If enabled, in multi\-desktop mode distributes between taskbars the available size proportionally to the number of tasks. Default: disabled. \fI(since 0.12)\fP
 .IP \(bu 2
 \fB\fCtaskbar_padding = horizontal_padding vertical_padding spacing\fR
 .RE
@@ -379,7 +488,7 @@ You can switch between virtual desktops.
 The following options configure the task buttons in the taskbar:
 .RS
 .IP \(bu 2
-\fB\fCtask_icon = boolean (0 or 1)\fR : Whether to display the task icon.
+\fB\fCtask_icon = boolean (0 or 1)\fR : Whether to display the task icon. There is no explicit option to control the task icon size; it depends on the vertical padding set with \fB\fCtask_padding\fR\&.
 .IP \(bu 2
 \fB\fCtask_text = boolean (0 or 1)\fR : Whether to display the task text.
 .IP \(bu 2
@@ -460,6 +569,8 @@ The action semantics:
 \fB\fCsystray_icon_asb = alpha (0 to 100) saturation (\-100 to 100) brightness (\-100 to 100)\fR : Adjust the systray icons color and transparency.
 .IP \(bu 2
 \fB\fCsystray_monitor = integer (1, 2, ...)\fR :  On which monitor to draw the systray. The first monitor is \fB\fC1\fR\&. \fI(since 0.12)\fP
+.IP \(bu 2
+\fB\fCsystray_name_filter = string\fR :  Regular expression to identify icon names to be hidden. For example, \fB\fC^audacious$\fR will hide icons with the exact name \fB\fCaudacious\fR, while \fB\fCaud\fR will hide any icons having \fB\fCaud\fR in the name. \fI(since 0.13.1)\fP
 .RE
 .SS Clock
 .RS
@@ -662,8 +773,8 @@ execp_continuous = 2
 .RS
 .nf
 execp = new
-execp_command = ping \-i 1 \-W 1 \-O \-D \-n $(ip route | grep default | grep via | grep \-o '[0\-9]*\\.[0\-9]*\\.[0\-9]*\\.[0\-9]*') | awk '/no/ { print "<span foreground=\\"#faa\\">timeout</span>"; fflush(); }; /time=/ { gsub(/time=/, "", $8); printf "<span foreground=\\"#7af\\">%3.0f %s</span>\\n", $8, $9; fflush(); } '
-execp_continuous = 1
+execp_command = ping \-i 1 \-c 1 \-W 1 \-O \-D \-n $(ip route | grep default | grep via | grep \-o '[0\-9]*\\.[0\-9]*\\.[0\-9]*\\.[0\-9]*') | awk '/no/ { print "<span foreground=\\"#faa\\">timeout</span>"; fflush(); }; /time=/ { gsub(/time=/, "", $8); printf "<span foreground=\\"#7af\\">%3.0f %s</span>\\n", $8, $9; fflush(); } '
+execp_continuous = 0
 execp_interval = 1
 execp_markup = 1
 .fi
@@ -673,9 +784,9 @@ execp_markup = 1
 .RS
 .nf
 execp = new
-execp_command = free \-s 2 | awk '/^\-/ { printf "Mem: '$(free \-h | awk '/^Mem:/ { print $2 }')' %.0f%\\n", 100*$3/($3+$4); fflush(stdout) }'
-execp_interval = 1
-execp_continuous = 1
+execp_command = free | awk '/^\-/ { printf "Mem: '$(free \-h | awk '/^Mem:/ { print $2 }')' %.0f%%\\n", 100*$3/($3+$4); fflush(stdout) }'
+execp_interval = 5
+execp_continuous = 0
 .fi
 .RE
 .SS Network load
@@ -689,6 +800,21 @@ execp_continuous = 1
 execp_interval = 1
 .fi
 .RE
+.SS Separator
+.RS
+.IP \(bu 2
+\fB\fCseparator = new\fR : Begins the configuration of a new separator. Multiple such plugins are supported; just use multiple \fB\fC:\fRs in \fB\fCpanel_items\fR\&. \fI(since 0.13.0)\fP
+.IP \(bu 2
+\fB\fCseparator_background_id = integer\fR : Which background to use. \fI(since 0.13.0)\fP
+.IP \(bu 2
+\fB\fCseparator_color = color opacity\fR : The foreground color. \fI(since 0.13.0)\fP
+.IP \(bu 2
+\fB\fCseparator_style = [empty | line | dots]\fR : The separator style. \fI(since 0.13.0)\fP
+.IP \(bu 2
+\fB\fCseparator_size = integer\fR : The thickness of the separator. Does not include the border and padding. For example, if the style is \fB\fCline\fR, this is the line thickness; if the style is \fB\fCdots\fR, this is the dot's diameter. \fI(since 0.13.0)\fP
+.IP \(bu 2
+\fB\fCseparator_padding = side_padding cap_padding\fR : The padding to add to the sides of the separator, in pixels. \fI(since 0.13.0)\fP
+.RE
 .SS Example configuration
 .PP
 .RS
@@ -750,7 +876,7 @@ task_font = sans 7
 task_font_color = #ffffff 70
 task_background_id = 3
 task_icon_asb = 100 0 0
-## replace STATUS by 'urgent', 'active' or 'iconfied'
+## replace STATUS by 'urgent', 'active' or 'iconified'
 #task_STATUS_background_id = 2
 #task_STATUS_font_color = #ffffff 85
 #task_STATUS_icon_asb = 100 0 0

doc/tint2.md

@@ -1,4 +1,4 @@
-# TINT2 1 "2016-05-22"
+# TINT2 1 "2017-03-12" 0.13.3
 
 ## NAME
 tint2 - lightweight panel/taskbar
@@ -36,6 +36,8 @@ Goals:
 
   * [Backgrounds and borders](#backgrounds-and-borders)
 
+  * [Gradients](#gradients)
+
   * [Panel](#panel)
 
   * [Launcher](#launcher)
@@ -56,6 +58,8 @@ Goals:
 
   * [Executor](#executor)
 
+  * [Separator](#separator)
+
   * [Example configuration](#example-configuration)
 
 ### Introduction
@@ -134,6 +138,102 @@ clock_background_id = 0
 
 Identifier 0 refers to a special background which is fully transparent, identifier 1 applies the first background defined in the config file etc.
 
+### Gradients
+
+(Available since 0.13.0)
+
+Backgrounds also allow specifying gradient layers
+that are drawn on top of the solid color background.
+
+First the user must define one or more gradients in the config file,
+each starting with `gradient = TYPE`. These must be added before backgrounds.
+
+Then gradients can be added by index to backgrounds,
+using the `gradient_id = INDEX`, `gradient_id_hover = INDEX` and
+`gradient_id_pressed = INDEX`, where `INDEX` is
+the gradient index, starting from 1.
+
+#### Gradient types
+
+Gradients vary the color between fixed control points:
+* vertical gradients: top-to-bottom;
+* horizontal gradients: left-to-right;
+* radial gradients: center-to-corners.
+
+The user must specify the start and end colors, and can optionally add extra color stops in between
+using the `color_stop` option, as explained below.
+
+##### Vertical gradient, with color varying from the top edge to the bottom edge, two colors
+
+```
+gradient = vertical
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+```
+
+##### Horizontal gradient, with color varying from the left edge to the right edge, two colors
+
+```
+gradient = horizontal
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+```
+
+##### Radial gradient, with color varying from the center to the corner, two colors:
+
+```
+gradient = radial
+start_color = #rrggbb opacity
+end_color = #rrggbb opacity
+```
+
+##### Adding extra color stops (0% and 100% remain fixed, more colors at x% between the start and end control points)
+
+```
+color_stop = percentage #rrggbb opacity
+```
+
+#### Gradient examples
+
+```
+# Gradient 1: thin film effect
+gradient = horizontal
+start_color = #111122 30
+end_color = #112211 30
+color_stop = 60 #221111 30
+
+# Gradient 2: radial glow
+gradient = radial
+start_color = #ffffff 20
+end_color = #ffffff 0
+
+# Gradient 3: elegant black
+gradient = vertical
+start_color = #444444 100
+end_color = #222222 100
+
+# Gradient 4: elegant black
+gradient = horizontal
+start_color = #111111 100
+end_color = #222222 100
+
+# Background 1: Active desktop name
+rounded = 2
+border_width = 1
+border_sides = TBLR
+background_color = #555555 10
+border_color = #ffffff 60
+background_color_hover = #555555 10
+border_color_hover = #ffffff 60
+background_color_pressed = #555555 10
+border_color_pressed = #ffffff 60
+gradient_id = 3
+gradient_id_hover = 4
+gradient_id_pressed = 2
+
+[...]
+```
+
 ### Panel
 
   * `panel_items = LTSBC` defines the items tint2 will show and the order of those items. Each letter refers to an item, defined as:
@@ -142,8 +242,9 @@ Identifier 0 refers to a special background which is fully transparent, identifi
     * `S` shows the Systray (also called notification area)
     * `B` shows the Battery status
     * `C` shows the Clock
-    * `F` adds an extensible spacer (freespace). Has no effect if `T` is also present. *(since 0.12)*
+    * `F` adds an extensible spacer (freespace). You can specify more than one. Has no effect if `T` is also present. *(since 0.12)*
     * `E` adds an executor plugin. You can specify more than one. *(since 0.12.4)*
+    * `:` adds a separator. You can specify more than one. *(since 0.13.0)*
 
     For example, `panel_items = STC` will show the systray, the taskbar and the clock (from left to right).
 
@@ -169,6 +270,8 @@ Identifier 0 refers to a special background which is fully transparent, identifi
 panel_size = 94% 30
 ```
 
+  * `panel_shrink = boolean (0 or 1)` : If set to 1, the panel will shrink to a compact size dynamically. *(since 0.13)*
+
   * `panel_margin = horizontal_margin vertical_margin` : The margins define the distance between the panel and the horizontal/vertical monitor edge. Use `0` to obtain a panel with the same size as the edge of the monitor (no margin).
 
 ![](images/panel_size_margin.jpg)
@@ -241,7 +344,9 @@ panel_size = 94% 30
       * You can drag-and-drop tasks between virtual desktops;
       * You can switch between virtual desktops.
 
-  * `taskbar_distribute_size = boolean (0 or 1)` :  If enabled, in multi-desktop mode distributes between taskbars the available size proportionally to the number of tasks. Default: disabled. *(since 0.12)*
+  * `taskbar_hide_if_empty = boolean (0 or 1)` : If enabled, in multi-desktop mode the taskbars corresponding to empty desktops different from the current desktop are hidden. *(since 0.13)*
+
+  * `taskbar_distribute_size = boolean (0 or 1)` : If enabled, in multi-desktop mode distributes between taskbars the available size proportionally to the number of tasks. Default: disabled. *(since 0.12)*
 
   * `taskbar_padding = horizontal_padding vertical_padding spacing`
 
@@ -284,7 +389,7 @@ panel_size = 94% 30
 
 The following options configure the task buttons in the taskbar:
 
-  * `task_icon = boolean (0 or 1)` : Whether to display the task icon.
+  * `task_icon = boolean (0 or 1)` : Whether to display the task icon. There is no explicit option to control the task icon size; it depends on the vertical padding set with `task_padding`.
 
   * `task_text = boolean (0 or 1)` : Whether to display the task text.
 
@@ -358,6 +463,8 @@ The action semantics:
 
   * `systray_monitor = integer (1, 2, ...)` :  On which monitor to draw the systray. The first monitor is `1`. *(since 0.12)*
 
+  * `systray_name_filter = string` :  Regular expression to identify icon names to be hidden. For example, `^audacious$` will hide icons with the exact name `audacious`, while `aud` will hide any icons having `aud` in the name. *(since 0.13.1)*
+
 ### Clock
 
   * `time1_format = %H:%M` : The format used by the first line of the clock.
@@ -539,8 +646,8 @@ execp_continuous = 2
 
 ```
 execp = new
-execp_command = ping -i 1 -W 1 -O -D -n $(ip route | grep default | grep via | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*') | awk '/no/ { print "<span foreground=\"#faa\">timeout</span>"; fflush(); }; /time=/ { gsub(/time=/, "", $8); printf "<span foreground=\"#7af\">%3.0f %s</span>\n", $8, $9; fflush(); } '
-execp_continuous = 1
+execp_command = ping -i 1 -c 1 -W 1 -O -D -n $(ip route | grep default | grep via | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*') | awk '/no/ { print "<span foreground=\"#faa\">timeout</span>"; fflush(); }; /time=/ { gsub(/time=/, "", $8); printf "<span foreground=\"#7af\">%3.0f %s</span>\n", $8, $9; fflush(); } '
+execp_continuous = 0
 execp_interval = 1
 execp_markup = 1
 ```
@@ -549,9 +656,9 @@ execp_markup = 1
 
 ```
 execp = new
-execp_command = free -s 2 | awk '/^-/ { printf "Mem: '$(free -h | awk '/^Mem:/ { print $2 }')' %.0f%\n", 100*$3/($3+$4); fflush(stdout) }'
-execp_interval = 1
-execp_continuous = 1
+execp_command = free | awk '/^-/ { printf "Mem: '$(free -h | awk '/^Mem:/ { print $2 }')' %.0f%%\n", 100*$3/($3+$4); fflush(stdout) }'
+execp_interval = 5
+execp_continuous = 0
 ```
 
 ##### Network load
@@ -564,6 +671,20 @@ execp_continuous = 1
 execp_interval = 1
 ```
 
+### Separator
+
+  * `separator = new` : Begins the configuration of a new separator. Multiple such plugins are supported; just use multiple `:`s in `panel_items`. *(since 0.13.0)*
+
+  * `separator_background_id = integer` : Which background to use. *(since 0.13.0)*
+
+  * `separator_color = color opacity` : The foreground color. *(since 0.13.0)*
+
+  * `separator_style = [empty | line | dots]` : The separator style. *(since 0.13.0)*
+
+  * `separator_size = integer` : The thickness of the separator. Does not include the border and padding. For example, if the style is `line`, this is the line thickness; if the style is `dots`, this is the dot's diameter. *(since 0.13.0)*
+
+  * `separator_padding = side_padding cap_padding` : The padding to add to the sides of the separator, in pixels. *(since 0.13.0)*
+
 ### Example configuration
 
 ```
@@ -624,7 +745,7 @@ task_font = sans 7
 task_font_color = #ffffff 70
 task_background_id = 3
 task_icon_asb = 100 0 0
-## replace STATUS by 'urgent', 'active' or 'iconfied'
+## replace STATUS by 'urgent', 'active' or 'iconified'
 #task_STATUS_background_id = 2
 #task_STATUS_font_color = #ffffff 85
 #task_STATUS_icon_asb = 100 0 0

get_version.sh

@@ -1,46 +1,6 @@
 #!/bin/sh
 
-MAJOR=0.12
-DIRTY=""
-
-if git status 1>/dev/null 2>/dev/null
-then
-    git update-index -q --ignore-submodules --refresh
-    # Disallow unstaged changes in the working tree
-    if ! git diff-files --quiet --ignore-submodules --
-    then
-        if [ "$1" = "--strict" ]
-        then
-            echo >&2 "Error: there are unstaged changes."
-            git diff-files --name-status -r --ignore-submodules -- >&2
-            exit 1
-        else
-            DIRTY="-dirty"
-        fi
-    fi
-
-    # Disallow uncommitted changes in the index
-    if ! git diff-index --cached --quiet HEAD --ignore-submodules --
-    then
-        if [ "$1" = "--strict" ]
-        then
-            echo >&2 "Error: there are uncommitted changes."
-            git diff-index --cached --name-status -r --ignore-submodules HEAD -- >&2
-            exit 1
-        else
-            DIRTY="-dirty"
-        fi
-    fi
-    VERSION=$(git describe --exact-match 2>/dev/null || echo "$MAJOR-git$(git show -s --pretty=format:%ci | cut -d ' ' -f 1 | tr -d '-').$(git show -s --pretty=format:%h)")$DIRTY
-else
-    VERSION=$(head -n 1 ChangeLog | cut -d ' ' -f 2)
-    if [ $VERSION = "master" ]
-    then
-        VERSION=$VERSION-$(head -n 1 ChangeLog | cut -d ' ' -f 1)
-    fi
-fi
-
-VERSION=$(echo "$VERSION" | sed 's/^v//')
+VERSION=0.13.3
 
 echo '#define VERSION_STRING "'$VERSION'"' > version.h
 echo $VERSION

make_release.sh

@@ -2,24 +2,6 @@
 
 # Usage: ./make_release.sh
 # Creates a tar.gz archive of the current tree.
-#
-# To bump the version number for the current commit (make sure you are in HEAD!), run manually:
-#
-# git tag -a v0.12 -m 'Version 0.12'
-#
-# To generate a release for an older tagged commit, first list the tags with:
-#
-# git tag
-#
-# then checkout the tagged commit with:
-#
-# git checkout tags/v0.1
-#
-# Finally, to revert to HEAD:
-#
-# git checkout master
-#
-# See more at https://gitlab.com/o9000/tint2/wikis/Development
 
 VERSION=$(./get_version.sh --strict)
 if [ ! $? -eq 0 ]
@@ -28,21 +10,10 @@ then
     exit 1
 fi
 
-DIR=tint2-$VERSION
-ARCHIVE=$DIR.tar.gz
-echo "Making release $DIR"
-rm -rf $DIR $ARCHIVE
+ARCHIVE=tint2-$VERSION.tar.gz
 
-git checkout-index --prefix=$DIR/ -a
-
-# Delete unneeded files
-rm -f $DIR/make_release.sh
-
-echo "echo \"#define VERSION_STRING \\\"$VERSION\\\"\" > version.h" > $DIR/get_version.sh
-
-# Create tarball and remove the exported directory
-tar -czf $ARCHIVE $DIR
-rm -rf $DIR
+echo "Making release tint2-$VERSION"
+git archive --format=tar.gz --prefix=tint2-$VERSION/ v$VERSION >$ARCHIVE
 
 sha1sum -b $ARCHIVE
 sha256sum -b $ARCHIVE

src/battery/battery.c

@@ -56,8 +56,11 @@ char *battery_uwheel_command;
 char *battery_dwheel_command;
 gboolean battery_found;
 
+char *battery_sys_prefix = (char*)"";
+
 void battery_init_fonts();
 char *battery_get_tooltip(void *obj);
+int battery_compute_desired_size(void *obj);
 void battery_dump_geometry(void *obj, int indent);
 
 void default_battery()
@@ -155,6 +158,7 @@ void init_battery_panel(void *p)
 	battery->area._draw_foreground = draw_battery;
 	battery->area.size_mode = LAYOUT_FIXED;
 	battery->area._resize = resize_battery;
+	battery->area._compute_desired_size = battery_compute_desired_size;
 	battery->area._is_under_mouse = full_width_area_is_under_mouse;
 	battery->area.on_screen = TRUE;
 	battery->area.resize_needed = 1;
@@ -164,6 +168,7 @@ void init_battery_panel(void *p)
 	battery->area.has_mouse_press_effect = battery->area.has_mouse_over_effect;
 	if (battery_tooltip_enabled)
 		battery->area._get_tooltip_text = battery_get_tooltip;
+	instantiate_area_gradients(&battery->area);
 }
 
 void battery_init_fonts()
@@ -197,7 +202,7 @@ void battery_default_font_changed()
 		panels[i].battery.area.resize_needed = TRUE;
 		schedule_redraw(&panels[i].battery.area);
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void update_battery_tick(void *arg)
@@ -240,29 +245,19 @@ void update_battery_tick(void *arg)
 	for (int i = 0; i < num_panels; i++) {
 		// Show/hide if needed
 		if (!battery_found) {
-			if (panels[i].battery.area.on_screen) {
-				hide(&panels[i].battery.area);
-				panel_refresh = TRUE;
-			}
+			hide(&panels[i].battery.area);
 		} else {
-			if (battery_state.percentage >= percentage_hide) {
-				if (panels[i].battery.area.on_screen) {
-					hide(&panels[i].battery.area);
-					panel_refresh = TRUE;
-				}
-			} else {
-				if (!panels[i].battery.area.on_screen) {
-					show(&panels[i].battery.area);
-					panel_refresh = TRUE;
-				}
-			}
+			if (battery_state.percentage >= percentage_hide)
+				hide(&panels[i].battery.area);
+			else
+				show(&panels[i].battery.area);
 		}
 		// Redraw if needed
 		if (panels[i].battery.area.on_screen) {
 			if (old_found != battery_found || old_percentage != battery_state.percentage ||
 			    old_hours != battery_state.time.hours || old_minutes != battery_state.time.minutes) {
 				panels[i].battery.area.resize_needed = TRUE;
-				panel_refresh = TRUE;
+				schedule_panel_redraw();
 			}
 		}
 	}
@@ -286,16 +281,61 @@ int update_battery()
 	return err;
 }
 
+int battery_compute_desired_size(void *obj)
+{
+	Battery *battery = (Battery *)obj;
+	Panel *panel = (Panel *)battery->area.panel;
+	int bat_percentage_height, bat_percentage_width, bat_percentage_height_ink;
+	int bat_time_height, bat_time_width, bat_time_height_ink;
+
+	snprintf(buf_bat_percentage, sizeof(buf_bat_percentage), "%d%%", battery_state.percentage);
+	if (battery_state.state == BATTERY_FULL) {
+		strcpy(buf_bat_time, "Full");
+	} else {
+		snprintf(buf_bat_time, sizeof(buf_bat_time), "%02d:%02d", battery_state.time.hours, battery_state.time.minutes);
+	}
+	get_text_size2(bat1_font_desc,
+				   &bat_percentage_height_ink,
+				   &bat_percentage_height,
+				   &bat_percentage_width,
+				   panel->area.height,
+				   panel->area.width,
+				   buf_bat_percentage,
+				   strlen(buf_bat_percentage),
+				   PANGO_WRAP_WORD_CHAR,
+				   PANGO_ELLIPSIZE_NONE,
+				   FALSE);
+	get_text_size2(bat2_font_desc,
+				   &bat_time_height_ink,
+				   &bat_time_height,
+				   &bat_time_width,
+				   panel->area.height,
+				   panel->area.width,
+				   buf_bat_time,
+				   strlen(buf_bat_time),
+				   PANGO_WRAP_WORD_CHAR,
+				   PANGO_ELLIPSIZE_NONE,
+				   FALSE);
+
+	if (panel_horizontal) {
+		int new_size = (bat_percentage_width > bat_time_width) ? bat_percentage_width : bat_time_width;
+		new_size += 2 * battery->area.paddingxlr + left_right_border_width(&battery->area);
+		return new_size;
+	} else {
+		int new_size = bat_percentage_height + bat_time_height + 2 * battery->area.paddingxlr +
+					   top_bottom_border_width(&battery->area);
+		return new_size;
+	}
+}
+
 gboolean resize_battery(void *obj)
 {
-	Battery *battery = obj;
-	Panel *panel = battery->area.panel;
+	Battery *battery = (Battery *)obj;
+	Panel *panel = (Panel *)battery->area.panel;
 	int bat_percentage_height, bat_percentage_width, bat_percentage_height_ink;
 	int bat_time_height, bat_time_width, bat_time_height_ink;
 	int ret = 0;
 
-	schedule_redraw(&battery->area);
-
 	snprintf(buf_bat_percentage, sizeof(buf_bat_percentage), "%d%%", battery_state.percentage);
 	if (battery_state.state == BATTERY_FULL) {
 		strcpy(buf_bat_time, "Full");
@@ -345,6 +385,8 @@ gboolean resize_battery(void *obj)
 			ret = 1;
 		}
 	}
+
+	schedule_redraw(&battery->area);
 	return ret;
 }
 

src/battery/battery.h

@@ -64,6 +64,8 @@ extern char *battery_rclick_command;
 extern char *battery_uwheel_command;
 extern char *battery_dwheel_command;
 
+extern char *battery_sys_prefix;
+
 static inline gchar *chargestate2str(ChargeState state)
 {
 	switch (state) {

src/battery/linux.c

@@ -38,18 +38,16 @@ struct psy_battery {
 	gint64 timestamp;
 	/* sysfs files */
 	gchar *path_present;
-	gchar *path_energy_now;
-	gchar *path_energy_full;
-	gchar *path_power_now;
+	gchar *path_level_now;
+	gchar *path_level_full;
+	gchar *path_rate_now;
 	gchar *path_status;
-	/* sysfs hints */
-	gboolean energy_in_uamp;
-	gboolean power_in_uamp;
 	/* values */
 	gboolean present;
-	gint energy_now;
-	gint energy_full;
-	gint power_now;
+	gint level_now;
+	gint level_full;
+	gint rate_now;
+	gchar unit;
 	ChargeState status;
 };
 
@@ -76,22 +74,23 @@ static void uevent_battery_plug()
 static struct uevent_notify psy_plug = {UEVENT_ADD | UEVENT_REMOVE, "power_supply", NULL, uevent_battery_plug};
 
 #define RETURN_ON_ERROR(err) \
-	if (error) {             \
+	if (err) {             \
 		g_error_free(err);   \
+		fprintf(stderr, RED "%s:%d: errror" RESET "\n", __FILE__, __LINE__); \
 		return FALSE;        \
 	}
 
 static GList *batteries = NULL;
 static GList *mains = NULL;
 
-static guint8 energy_to_percent(gint energy_now, gint energy_full)
+static guint8 level_to_percent(gint level_now, gint level_full)
 {
-	return 0.5 + ((energy_now <= energy_full ? energy_now : energy_full) * 100.0) / energy_full;
+	return 0.5 + ((level_now <= level_full ? level_now : level_full) * 100.0) / level_full;
 }
 
 static enum psy_type power_supply_get_type(const gchar *entryname)
 {
-	gchar *path_type = g_build_filename("/sys/class/power_supply", entryname, "type", NULL);
+	gchar *path_type = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "type", NULL);
 	GError *error = NULL;
 	gchar *type;
 	gsize typelen;
@@ -99,6 +98,7 @@ static enum psy_type power_supply_get_type(const gchar *entryname)
 	g_file_get_contents(path_type, &type, &typelen, &error);
 	g_free(path_type);
 	if (error) {
+		fprintf(stderr, RED "%s:%d: read failed" RESET "\n", __FILE__, __LINE__);
 		g_error_free(error);
 		return PSY_UNKNOWN;
 	}
@@ -122,59 +122,53 @@ static gboolean init_linux_battery(struct psy_battery *bat)
 {
 	const gchar *entryname = bat->name;
 
-	bat->energy_in_uamp = FALSE;
-	bat->power_in_uamp = FALSE;
-
-	bat->path_present = g_build_filename("/sys/class/power_supply", entryname, "present", NULL);
+	bat->path_present = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "present", NULL);
 	if (!g_file_test(bat->path_present, G_FILE_TEST_EXISTS)) {
+		fprintf(stderr, RED "%s:%d: read failed" RESET "\n", __FILE__, __LINE__);
 		goto err0;
 	}
 
-	bat->path_energy_now = g_build_filename("/sys/class/power_supply", entryname, "energy_now", NULL);
-	if (!g_file_test(bat->path_energy_now, G_FILE_TEST_EXISTS)) {
-		g_free(bat->path_energy_now);
-		bat->path_energy_now = g_build_filename("/sys/class/power_supply", entryname, "charge_now", NULL);
-		bat->energy_in_uamp = TRUE;
+	bat->path_level_now = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "energy_now", NULL);
+	bat->path_level_full =
+		g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "energy_full", NULL);
+	bat->path_rate_now = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "power_now", NULL);
+	bat->unit = 'W';
+
+	if (!g_file_test(bat->path_level_now, G_FILE_TEST_EXISTS) ||
+	    !g_file_test(bat->path_level_full, G_FILE_TEST_EXISTS) ||
+	    !g_file_test(bat->path_rate_now, G_FILE_TEST_EXISTS)) {
+		g_free(bat->path_level_now);
+		g_free(bat->path_level_full);
+		g_free(bat->path_rate_now);
+		bat->path_level_now =
+			g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "charge_now", NULL);
+		bat->path_level_full =
+			g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "charge_full", NULL);
+		bat->path_rate_now =
+			g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "current_now", NULL);
+		bat->unit = 'A';
 	}
-	if (!g_file_test(bat->path_energy_now, G_FILE_TEST_EXISTS)) {
+	if (!g_file_test(bat->path_level_now, G_FILE_TEST_EXISTS) ||
+	    !g_file_test(bat->path_level_full, G_FILE_TEST_EXISTS) ||
+	    !g_file_test(bat->path_rate_now, G_FILE_TEST_EXISTS)) {
+		fprintf(stderr, RED "%s:%d: read failed" RESET "\n", __FILE__, __LINE__);
 		goto err1;
 	}
 
-	if (!bat->energy_in_uamp) {
-		bat->path_energy_full = g_build_filename("/sys/class/power_supply", entryname, "energy_full", NULL);
-		if (!g_file_test(bat->path_energy_full, G_FILE_TEST_EXISTS))
-			goto err2;
-	} else {
-		bat->path_energy_full = g_build_filename("/sys/class/power_supply", entryname, "charge_full", NULL);
-		if (!g_file_test(bat->path_energy_full, G_FILE_TEST_EXISTS))
-			goto err2;
-	}
-
-	bat->path_power_now = g_build_filename("/sys/class/power_supply", entryname, "power_now", NULL);
-	if (!g_file_test(bat->path_power_now, G_FILE_TEST_EXISTS)) {
-		g_free(bat->path_power_now);
-		bat->path_power_now = g_build_filename("/sys/class/power_supply", entryname, "current_now", NULL);
-		bat->power_in_uamp = TRUE;
-	}
-	if (!g_file_test(bat->path_power_now, G_FILE_TEST_EXISTS)) {
-		goto err3;
-	}
-
-	bat->path_status = g_build_filename("/sys/class/power_supply", entryname, "status", NULL);
+	bat->path_status = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "status", NULL);
 	if (!g_file_test(bat->path_status, G_FILE_TEST_EXISTS)) {
-		goto err4;
+		fprintf(stderr, RED "%s:%d: read failed" RESET "\n", __FILE__, __LINE__);
+		goto err2;
 	}
 
 	return TRUE;
 
-err4:
-	g_free(bat->path_status);
-err3:
-	g_free(bat->path_power_now);
 err2:
-	g_free(bat->path_energy_full);
+	g_free(bat->path_status);
 err1:
-	g_free(bat->path_energy_now);
+	g_free(bat->path_level_now);
+	g_free(bat->path_level_full);
+	g_free(bat->path_rate_now);
 err0:
 	g_free(bat->path_present);
 
@@ -185,8 +179,9 @@ static gboolean init_linux_mains(struct psy_mains *ac)
 {
 	const gchar *entryname = ac->name;
 
-	ac->path_online = g_build_filename("/sys/class/power_supply", entryname, "online", NULL);
+	ac->path_online = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", entryname, "online", NULL);
 	if (!g_file_test(ac->path_online, G_FILE_TEST_EXISTS)) {
+		fprintf(stderr, RED "%s:%d: read failed" RESET "\n", __FILE__, __LINE__);
 		g_free(ac->path_online);
 		return FALSE;
 	}
@@ -199,9 +194,9 @@ static void psy_battery_free(gpointer data)
 	struct psy_battery *bat = data;
 	g_free(bat->name);
 	g_free(bat->path_status);
-	g_free(bat->path_power_now);
-	g_free(bat->path_energy_full);
-	g_free(bat->path_energy_now);
+	g_free(bat->path_rate_now);
+	g_free(bat->path_level_full);
+	g_free(bat->path_level_now);
 	g_free(bat->path_present);
 	g_free(bat);
 }
@@ -232,10 +227,10 @@ static void add_battery(const char *entryname)
 
 	if (init_linux_battery(bat)) {
 		batteries = g_list_append(batteries, bat);
-		fprintf(stdout, "found battery \"%s\"\n", bat->name);
+		fprintf(stdout, GREEN "Found battery \"%s\"" RESET "\n", bat->name);
 	} else {
 		g_free(bat);
-		fprintf(stderr, RED "failed to initialize battery \"%s\"" RESET "\n", entryname);
+		fprintf(stderr, RED "Failed to initialize battery \"%s\"" RESET "\n", entryname);
 	}
 }
 
@@ -246,10 +241,10 @@ static void add_mains(const char *entryname)
 
 	if (init_linux_mains(ac)) {
 		mains = g_list_append(mains, ac);
-		fprintf(stdout, "found mains \"%s\"\n", ac->name);
+		fprintf(stdout, GREEN "Found mains \"%s\"" RESET "\n", ac->name);
 	} else {
 		g_free(ac);
-		fprintf(stderr, RED "failed to initialize mains \"%s\"" RESET "\n", entryname);
+		fprintf(stderr, RED "Failed to initialize mains \"%s\"" RESET "\n", entryname);
 	}
 }
 
@@ -261,10 +256,13 @@ gboolean battery_os_init()
 
 	battery_os_free();
 
-	directory = g_dir_open("/sys/class/power_supply", 0, &error);
+	gchar *dir_path = g_build_filename(battery_sys_prefix, "/sys/class/power_supply", NULL);
+	directory = g_dir_open(dir_path, 0, &error);
+	g_free(dir_path);
 	RETURN_ON_ERROR(error);
 
 	while ((entryname = g_dir_read_name(directory))) {
+		fprintf(stderr, GREEN "Found power device %s" RESET "\n", entryname);
 		enum psy_type type = power_supply_get_type(entryname);
 
 		switch (type) {
@@ -287,15 +285,15 @@ gboolean battery_os_init()
 	return batteries != NULL;
 }
 
-static gint estimate_power_usage(struct psy_battery *bat, gint old_energy_now, gint64 old_timestamp)
+static gint estimate_rate_usage(struct psy_battery *bat, gint old_level_now, gint64 old_timestamp)
 {
-	gint64 diff_power = ABS(bat->energy_now - old_energy_now);
+	gint64 diff_level = ABS(bat->level_now - old_level_now);
 	gint64 diff_time = bat->timestamp - old_timestamp;
 
 	/* µW = (µWh * 3600) / (µs / 1000000) */
-	gint power = diff_power * 3600 * 1000000 / MAX(1, diff_time);
+	gint rate = diff_level * 3600 * 1000000 / MAX(1, diff_time);
 
-	return power;
+	return rate;
 }
 
 static gboolean update_linux_battery(struct psy_battery *bat)
@@ -305,15 +303,15 @@ static gboolean update_linux_battery(struct psy_battery *bat)
 	gsize datalen;
 
 	gint64 old_timestamp = bat->timestamp;
-	int old_energy_now = bat->energy_now;
-	gint old_power_now = bat->power_now;
+	int old_level_now = bat->level_now;
+	gint old_rate_now = bat->rate_now;
 
 	/* reset values */
 	bat->present = 0;
 	bat->status = BATTERY_UNKNOWN;
-	bat->energy_now = 0;
-	bat->energy_full = 0;
-	bat->power_now = 0;
+	bat->level_now = 0;
+	bat->level_full = 0;
+	bat->rate_now = 0;
 	bat->timestamp = g_get_monotonic_time();
 
 	/* present */
@@ -339,35 +337,35 @@ static gboolean update_linux_battery(struct psy_battery *bat)
 	}
 	g_free(data);
 
-	/* energy now */
-	g_file_get_contents(bat->path_energy_now, &data, &datalen, &error);
+	/* level now */
+	g_file_get_contents(bat->path_level_now, &data, &datalen, &error);
 	RETURN_ON_ERROR(error);
-	bat->energy_now = atoi(data);
+	bat->level_now = atoi(data);
 	g_free(data);
 
-	/* energy full */
-	g_file_get_contents(bat->path_energy_full, &data, &datalen, &error);
+	/* level full */
+	g_file_get_contents(bat->path_level_full, &data, &datalen, &error);
 	RETURN_ON_ERROR(error);
-	bat->energy_full = atoi(data);
+	bat->level_full = atoi(data);
 	g_free(data);
 
-	/* power now */
-	g_file_get_contents(bat->path_power_now, &data, &datalen, &error);
+	/* rate now */
+	g_file_get_contents(bat->path_rate_now, &data, &datalen, &error);
 	if (g_error_matches(error, G_FILE_ERROR, G_FILE_ERROR_NODEV)) {
-		/* some hardware does not support reading current power consumption */
+		/* some hardware does not support reading current rate consumption */
 		g_error_free(error);
-		bat->power_now = estimate_power_usage(bat, old_energy_now, old_timestamp);
-		if (bat->power_now == 0 && bat->status != BATTERY_FULL) {
+		bat->rate_now = estimate_rate_usage(bat, old_level_now, old_timestamp);
+		if (bat->rate_now == 0 && bat->status != BATTERY_FULL) {
 			/* If the hardware updates the level slower than our sampling period,
 			 * we need to sample more rarely */
-			bat->power_now = old_power_now;
+			bat->rate_now = old_rate_now;
 			bat->timestamp = old_timestamp;
 		}
 	} else if (error) {
 		g_error_free(error);
 		return FALSE;
 	} else {
-		bat->power_now = atoi(data);
+		bat->rate_now = atoi(data);
 		g_free(data);
 	}
 
@@ -394,9 +392,9 @@ int battery_os_update(BatteryState *state)
 {
 	GList *l;
 
-	gint64 total_energy_now = 0;
-	gint64 total_energy_full = 0;
-	gint64 total_power_now = 0;
+	gint64 total_level_now = 0;
+	gint64 total_level_full = 0;
+	gint64 total_rate_now = 0;
 	gint seconds = 0;
 
 	gboolean charging = FALSE;
@@ -408,9 +406,9 @@ int battery_os_update(BatteryState *state)
 		struct psy_battery *bat = l->data;
 		update_linux_battery(bat);
 
-		total_energy_now += bat->energy_now;
-		total_energy_full += bat->energy_full;
-		total_power_now += bat->power_now;
+		total_level_now += bat->level_now;
+		total_level_full += bat->level_full;
+		total_rate_now += bat->rate_now;
 
 		charging |= (bat->status == BATTERY_CHARGING);
 		discharging |= (bat->status == BATTERY_DISCHARGING);
@@ -432,17 +430,17 @@ int battery_os_update(BatteryState *state)
 		state->state = BATTERY_FULL;
 
 	/* calculate seconds */
-	if (total_power_now > 0) {
+	if (total_rate_now > 0) {
 		if (state->state == BATTERY_CHARGING)
-			seconds = 3600 * (total_energy_full - total_energy_now) / total_power_now;
+			seconds = 3600 * (total_level_full - total_level_now) / total_rate_now;
 		else if (state->state == BATTERY_DISCHARGING)
-			seconds = 3600 * total_energy_now / total_power_now;
+			seconds = 3600 * total_level_now / total_rate_now;
 		seconds = MAX(0, seconds);
 	}
 	battery_state_set_time(state, seconds);
 
 	/* calculate percentage */
-	state->percentage = energy_to_percent(total_energy_now, total_energy_full);
+	state->percentage = level_to_percent(total_level_now, total_level_full);
 
 	/* AC state */
 	state->ac_connected = ac_connected;
@@ -450,42 +448,41 @@ int battery_os_update(BatteryState *state)
 	return 0;
 }
 
-static gchar *energy_human_readable(struct psy_battery *bat)
+static gchar *level_human_readable(struct psy_battery *bat)
 {
-	gint now = bat->energy_now;
-	gint full = bat->energy_full;
-	gchar unit = bat->energy_in_uamp ? 'A' : 'W';
+	gint now = bat->level_now;
+	gint full = bat->level_full;
 
 	if (full >= 1000000) {
 		return g_strdup_printf("%d.%d / %d.%d %ch",
-							   now / 1000000,
-							   (now % 1000000) / 100000,
-							   full / 1000000,
-							   (full % 1000000) / 100000,
-							   unit);
+		                       now / 1000000,
+		                       (now % 1000000) / 100000,
+		                       full / 1000000,
+		                       (full % 1000000) / 100000,
+							   bat->unit);
 	} else if (full >= 1000) {
 		return g_strdup_printf("%d.%d / %d.%d m%ch",
-							   now / 1000,
-							   (now % 1000) / 100,
-							   full / 1000,
-							   (full % 1000) / 100,
-							   unit);
+		                       now / 1000,
+		                       (now % 1000) / 100,
+		                       full / 1000,
+		                       (full % 1000) / 100,
+							   bat->unit);
 	} else {
-		return g_strdup_printf("%d / %d µ%ch", now, full, unit);
+		return g_strdup_printf("%d / %d µ%ch", now, full, bat->unit);
 	}
 }
 
-static gchar *power_human_readable(struct psy_battery *bat)
+static gchar *rate_human_readable(struct psy_battery *bat)
 {
-	gint power = bat->power_now;
-	gchar unit = bat->power_in_uamp ? 'A' : 'W';
+	gint rate = bat->rate_now;
+	gchar unit = bat->unit;
 
-	if (power >= 1000000) {
-		return g_strdup_printf("%d.%d %c", power / 1000000, (power % 1000000) / 100000, unit);
-	} else if (power >= 1000) {
-		return g_strdup_printf("%d.%d m%c", power / 1000, (power % 1000) / 100, unit);
-	} else if (power > 0) {
-		return g_strdup_printf("%d µ%c", power, unit);
+	if (rate >= 1000000) {
+		return g_strdup_printf("%d.%d %c", rate / 1000000, (rate % 1000000) / 100000, unit);
+	} else if (rate >= 1000) {
+		return g_strdup_printf("%d.%d m%c", rate / 1000, (rate % 1000) / 100, unit);
+	} else if (rate > 0) {
+		return g_strdup_printf("%d µ%c", rate, unit);
 	} else {
 		return g_strdup_printf("0 %c", unit);
 	}
@@ -510,16 +507,16 @@ char *battery_os_tooltip()
 			continue;
 		}
 
-		gchar *power = power_human_readable(bat);
-		gchar *energy = energy_human_readable(bat);
-		gchar *state = (bat->status == BATTERY_UNKNOWN) ? "Level" : chargestate2str(bat->status);
+		gchar *rate = rate_human_readable(bat);
+		gchar *level = level_human_readable(bat);
+		gchar *state = (bat->status == BATTERY_UNKNOWN) ? "energy" : chargestate2str(bat->status);
 
-		guint8 percentage = energy_to_percent(bat->energy_now, bat->energy_full);
+		guint8 percentage = level_to_percent(bat->level_now, bat->level_full);
 
-		g_string_append_printf(tooltip, "\t%s: %s (%u %%)\n\tPower: %s", state, energy, percentage, power);
+		g_string_append_printf(tooltip, "\t%s: %s (%u %%)\n\trate: %s", state, level, percentage, rate);
 
-		g_free(power);
-		g_free(energy);
+		g_free(rate);
+		g_free(level);
 	}
 
 	for (l = mains; l != NULL; l = l->next) {

src/clock/clock.c

@@ -55,6 +55,7 @@ static timeout *clock_timeout;
 
 void clock_init_fonts();
 char *clock_get_tooltip(void *obj);
+int clock_compute_desired_size(void *obj);
 void clock_dump_geometry(void *obj, int indent);
 
 void default_clock()
@@ -117,7 +118,7 @@ void update_clocks_sec(void *arg)
 		for (int i = 0; i < num_panels; i++)
 			panels[i].clock.area.resize_needed = 1;
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void update_clocks_min(void *arg)
@@ -131,7 +132,7 @@ void update_clocks_min(void *arg)
 			for (int i = 0; i < num_panels; i++)
 				panels[i].clock.area.resize_needed = 1;
 		}
-		panel_refresh = TRUE;
+		schedule_panel_redraw();
 	}
 }
 
@@ -162,6 +163,13 @@ gboolean time_format_needs_sec_ticks(char *time_format)
 
 void init_clock()
 {
+}
+
+void init_clock_panel(void *p)
+{
+	Panel *panel = (Panel *)p;
+	Clock *clock = &panel->clock;
+
 	if (!clock_timeout) {
 		if (time_format_needs_sec_ticks(time1_format) || time_format_needs_sec_ticks(time2_format)) {
 			clock_timeout = add_timeout(10, 1000, update_clocks_sec, 0, &clock_timeout);
@@ -169,12 +177,6 @@ void init_clock()
 			clock_timeout = add_timeout(10, 1000, update_clocks_min, 0, &clock_timeout);
 		}
 	}
-}
-
-void init_clock_panel(void *p)
-{
-	Panel *panel = (Panel *)p;
-	Clock *clock = &panel->clock;
 
 	if (!clock->area.bg)
 		clock->area.bg = &g_array_index(backgrounds, Background, 0);
@@ -184,11 +186,12 @@ void init_clock_panel(void *p)
 	snprintf(clock->area.name, sizeof(clock->area.name), "Clock");
 	clock->area._is_under_mouse = full_width_area_is_under_mouse;
 	clock->area.has_mouse_press_effect = clock->area.has_mouse_over_effect =
-		panel_config.mouse_effects && (clock_lclick_command || clock_mclick_command || clock_rclick_command ||
-									   clock_uwheel_command || clock_dwheel_command);
+	    panel_config.mouse_effects && (clock_lclick_command || clock_mclick_command || clock_rclick_command ||
+	                                   clock_uwheel_command || clock_dwheel_command);
 	clock->area._draw_foreground = draw_clock;
 	clock->area.size_mode = LAYOUT_FIXED;
 	clock->area._resize = resize_clock;
+	clock->area._compute_desired_size = clock_compute_desired_size;
 	clock->area._dump_geometry = clock_dump_geometry;
 	// check consistency
 	if (!time1_format)
@@ -196,6 +199,7 @@ void init_clock_panel(void *p)
 
 	clock->area.resize_needed = 1;
 	clock->area.on_screen = TRUE;
+	instantiate_area_gradients(&clock->area);
 
 	if (time_tooltip_format) {
 		clock->area._get_tooltip_text = clock_get_tooltip;
@@ -236,49 +240,88 @@ void clock_default_font_changed()
 		panels[i].clock.area.resize_needed = TRUE;
 		schedule_redraw(&panels[i].clock.area);
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
-gboolean resize_clock(void *obj)
+void clock_compute_text_geometry(Panel *panel,
+                                 int *time_height_ink,
+                                 int *time_height,
+                                 int *time_width,
+                                 int *date_height_ink,
+                                 int *date_height,
+                                 int *date_width)
 {
-	Clock *clock = obj;
-	Panel *panel = clock->area.panel;
-	int time_height_ink, time_height, time_width, date_height_ink, date_height, date_width;
-	gboolean result = FALSE;
-
-	schedule_redraw(&clock->area);
-
-	date_height = date_width = 0;
+	*date_height = *date_width = 0;
 	strftime(buf_time, sizeof(buf_time), time1_format, clock_gettime_for_tz(time1_timezone));
 	get_text_size2(time1_font_desc,
-				   &time_height_ink,
-				   &time_height,
-				   &time_width,
-				   panel->area.height,
-				   panel->area.width,
-				   buf_time,
-				   strlen(buf_time),
-				   PANGO_WRAP_WORD_CHAR,
-				   PANGO_ELLIPSIZE_NONE,
-				   FALSE);
+	               time_height_ink,
+	               time_height,
+	               time_width,
+	               panel->area.height,
+	               panel->area.width,
+	               buf_time,
+	               strlen(buf_time),
+	               PANGO_WRAP_WORD_CHAR,
+	               PANGO_ELLIPSIZE_NONE,
+	               FALSE);
 	if (time2_format) {
 		strftime(buf_date, sizeof(buf_date), time2_format, clock_gettime_for_tz(time2_timezone));
 		get_text_size2(time2_font_desc,
-					   &date_height_ink,
-					   &date_height,
-					   &date_width,
-					   panel->area.height,
-					   panel->area.width,
-					   buf_date,
-					   strlen(buf_date),
-					   PANGO_WRAP_WORD_CHAR,
-					   PANGO_ELLIPSIZE_NONE,
-					   FALSE);
+		               date_height_ink,
+		               date_height,
+		               date_width,
+		               panel->area.height,
+		               panel->area.width,
+		               buf_date,
+		               strlen(buf_date),
+		               PANGO_WRAP_WORD_CHAR,
+		               PANGO_ELLIPSIZE_NONE,
+		               FALSE);
 	}
+}
+
+int clock_compute_desired_size(void *obj)
+{
+	Clock *clock = (Clock *)obj;
+	Panel *panel = (Panel *)clock->area.panel;
+	int time_height_ink, time_height, time_width, date_height_ink, date_height, date_width;
+	clock_compute_text_geometry(panel,
+	                            &time_height_ink,
+	                            &time_height,
+	                            &time_width,
+	                            &date_height_ink,
+	                            &date_height,
+	                            &date_width);
 
 	if (panel_horizontal) {
 		int new_size = (time_width > date_width) ? time_width : date_width;
 		new_size += 2 * clock->area.paddingxlr + left_right_border_width(&clock->area);
+		return new_size;
+	} else {
+		int new_size = time_height + date_height + 2 * clock->area.paddingxlr + top_bottom_border_width(&clock->area);
+		return new_size;
+	}
+}
+
+gboolean resize_clock(void *obj)
+{
+	Clock *clock = (Clock *)obj;
+	Panel *panel = (Panel *)clock->area.panel;
+	gboolean result = FALSE;
+
+	schedule_redraw(&clock->area);
+
+	int time_height_ink, time_height, time_width, date_height_ink, date_height, date_width;
+	clock_compute_text_geometry(panel,
+	                            &time_height_ink,
+	                            &time_height,
+	                            &time_width,
+	                            &date_height_ink,
+	                            &date_height,
+	                            &date_width);
+
+	int new_size = clock_compute_desired_size(clock);
+	if (panel_horizontal) {
 		if (new_size > clock->area.width || new_size < (clock->area.width - 6)) {
 			// we try to limit the number of resizes
 			clock->area.width = new_size + 1;
@@ -290,7 +333,6 @@ gboolean resize_clock(void *obj)
 			result = TRUE;
 		}
 	} else {
-		int new_size = time_height + date_height + 2 * clock->area.paddingxlr + top_bottom_border_width(&clock->area);
 		if (new_size != clock->area.height) {
 			// we try to limit the number of resizes
 			clock->area.height = new_size;
@@ -339,21 +381,10 @@ void draw_clock(void *obj, cairo_t *c)
 void clock_dump_geometry(void *obj, int indent)
 {
 	Clock *clock = (Clock *)obj;
-	fprintf(stderr,
-			"%*sText 1: y = %d, text = %s\n",
-			indent,
-			"",
-			clock->time1_posy,
-			buf_time);
+	fprintf(stderr, "%*sText 1: y = %d, text = %s\n", indent, "", clock->time1_posy, buf_time);
 	if (time2_format) {
-		fprintf(stderr,
-			"%*sText 2: y = %d, text = %s\n",
-			indent,
-			"",
-			clock->time2_posy,
-			buf_date);
+		fprintf(stderr, "%*sText 2: y = %d, text = %s\n", indent, "", clock->time2_posy, buf_date);
 	}
-
 }
 
 char *clock_get_tooltip(void *obj)

src/config.c

@@ -31,14 +31,14 @@
 #include <string.h>
 #include <ctype.h>
 #include <glib/gstdio.h>
-#include <pango/pangocairo.h>
-#include <pango/pangoxft.h>
+#include <pango/pango-font.h>
 #include <Imlib2.h>
 
 #include "config.h"
 
 #ifndef TINT2CONF
 
+#include "tint2rc.h"
 #include "common.h"
 #include "server.h"
 #include "strnatcmp.h"
@@ -52,6 +52,7 @@
 #include "window.h"
 #include "tooltip.h"
 #include "timer.h"
+#include "separator.h"
 #include "execplugin.h"
 
 #ifdef ENABLE_BATTERY
@@ -202,6 +203,15 @@ void load_launcher_app_dir(const char *path)
 	g_list_free(files);
 }
 
+Separator *get_or_create_last_separator()
+{
+	if (!panel_config.separator_list) {
+		fprintf(stderr, "Warning: separator items should shart with 'separator = new'\n");
+		panel_config.separator_list = g_list_append(panel_config.separator_list, create_separator());
+	}
+	return (Separator *)g_list_last(panel_config.separator_list)->data;
+}
+
 Execp *get_or_create_last_execp()
 {
 	if (!panel_config.execp_list) {
@@ -233,10 +243,10 @@ void add_entry(char *key, char *value)
 		init_background(&bg);
 		bg.border.radius = atoi(value);
 		g_array_append_val(backgrounds, bg);
-		read_bg_color_hover = 0;
-		read_border_color_hover = 0;
-		read_bg_color_press = 0;
-		read_border_color_press = 0;
+		read_bg_color_hover = FALSE;
+		read_border_color_hover = FALSE;
+		read_bg_color_press = FALSE;
+		read_border_color_press = FALSE;
 	} else if (strcmp(key, "border_width") == 0) {
 		g_array_index(backgrounds, Background, backgrounds->len - 1).border.width = atoi(value);
 	} else if (strcmp(key, "border_sides") == 0) {
@@ -304,6 +314,59 @@ void add_entry(char *key, char *value)
 		else
 			bg->border_color_pressed.alpha = 0.5;
 		read_border_color_press = 1;
+	} else if (strcmp(key, "gradient_id") == 0) {
+		Background *bg = &g_array_index(backgrounds, Background, backgrounds->len - 1);
+		int id = atoi(value);
+		id = (id < gradients->len && id >= 0) ? id : -1;
+		if (id >= 0)
+			bg->gradients[MOUSE_NORMAL] = &g_array_index(gradients, GradientClass, id);
+	} else if (strcmp(key, "gradient_id_hover") == 0 || strcmp(key, "hover_gradient_id") == 0) {
+		Background *bg = &g_array_index(backgrounds, Background, backgrounds->len - 1);
+		int id = atoi(value);
+		id = (id < gradients->len && id >= 0) ? id : -1;
+		if (id >= 0)
+			bg->gradients[MOUSE_OVER] = &g_array_index(gradients, GradientClass, id);
+	} else if (strcmp(key, "gradient_id_pressed") == 0 || strcmp(key, "pressed_gradient_id") == 0) {
+		Background *bg = &g_array_index(backgrounds, Background, backgrounds->len - 1);
+		int id = atoi(value);
+		id = (id < gradients->len && id >= 0) ? id : -1;
+		if (id >= 0)
+			bg->gradients[MOUSE_DOWN] = &g_array_index(gradients, GradientClass, id);
+	}
+
+	/* Gradients */
+	else if (strcmp(key, "gradient") == 0) {
+		// Create a new gradient
+		GradientClass g;
+		init_gradient(&g, gradient_type_from_string(value));
+		g_array_append_val(gradients, g);
+	} else if (strcmp(key, "start_color") == 0) {
+		GradientClass *g = &g_array_index(gradients, GradientClass, gradients->len - 1);
+		extract_values(value, &value1, &value2, &value3);
+		get_color(value1, g->start_color.rgb);
+		if (value2)
+			g->start_color.alpha = (atoi(value2) / 100.0);
+		else
+			g->start_color.alpha = 0.5;
+	} else if (strcmp(key, "end_color") == 0) {
+		GradientClass *g = &g_array_index(gradients, GradientClass, gradients->len - 1);
+		extract_values(value, &value1, &value2, &value3);
+		get_color(value1, g->end_color.rgb);
+		if (value2)
+			g->end_color.alpha = (atoi(value2) / 100.0);
+		else
+			g->end_color.alpha = 0.5;
+	} else if (strcmp(key, "color_stop") == 0) {
+		GradientClass *g = &g_array_index(gradients, GradientClass, gradients->len - 1);
+		extract_values(value, &value1, &value2, &value3);
+		ColorStop *color_stop = (ColorStop *) calloc(1, sizeof(ColorStop));
+		color_stop->offset = atof(value1) / 100.0;
+		get_color(value2, color_stop->color.rgb);
+		if (value3)
+			color_stop->color.alpha = (atoi(value3) / 100.0);
+		else
+			color_stop->color.alpha = 0.5;
+		g->extra_color_stops = g_list_append(g->extra_color_stops, color_stop);
 	}
 
 	/* Panel */
@@ -311,6 +374,8 @@ void add_entry(char *key, char *value)
 		panel_config.monitor = config_get_monitor(value);
 	} else if (strcmp(key, "primary_monitor_first") == 0) {
 		primary_monitor_first = atoi(value);
+	} else if (strcmp(key, "panel_shrink") == 0) {
+		panel_shrink = atoi(value);
 	} else if (strcmp(key, "panel_size") == 0) {
 		extract_values(value, &value1, &value2, &value3);
 
@@ -527,6 +592,45 @@ void add_entry(char *key, char *value)
 #endif
 	}
 
+	/* Separator */
+	else if (strcmp(key, "separator") == 0) {
+		panel_config.separator_list = g_list_append(panel_config.separator_list, create_separator());
+	} else if (strcmp(key, "separator_background_id") == 0) {
+		Separator *separator = get_or_create_last_separator();
+		int id = atoi(value);
+		id = (id < backgrounds->len && id >= 0) ? id : 0;
+		separator->area.bg = &g_array_index(backgrounds, Background, id);
+	} else if (strcmp(key, "separator_color") == 0) {
+		Separator *separator = get_or_create_last_separator();
+		extract_values(value, &value1, &value2, &value3);
+		get_color(value1, separator->color.rgb);
+		if (value2)
+			separator->color.alpha = (atoi(value2) / 100.0);
+		else
+			separator->color.alpha = 0.5;
+	} else if (strcmp(key, "separator_style") == 0) {
+		Separator *separator = get_or_create_last_separator();
+		if (g_str_equal(value, "empty"))
+			separator->style = SEPARATOR_EMPTY;
+		else if (g_str_equal(value, "line"))
+			separator->style = SEPARATOR_LINE;
+		else if (g_str_equal(value, "dots"))
+			separator->style = SEPARATOR_DOTS;
+		else
+			fprintf(stderr, RED "Invalid separator_style value: %s" RESET "\n", value);
+	} else if (strcmp(key, "separator_size") == 0) {
+		Separator *separator = get_or_create_last_separator();
+		separator->thickness = atoi(value);
+	} else if (strcmp(key, "separator_padding") == 0) {
+		Separator *separator = get_or_create_last_separator();
+		extract_values(value, &value1, &value2, &value3);
+		separator->area.paddingxlr = separator->area.paddingx = atoi(value1);
+		if (value2)
+			separator->area.paddingy = atoi(value2);
+		if (value3)
+			separator->area.paddingx = atoi(value3);
+	}
+
 	/* Execp */
 	else if (strcmp(key, "execp") == 0) {
 		panel_config.execp_list = g_list_append(panel_config.execp_list, create_execp());
@@ -771,6 +875,8 @@ void add_entry(char *key, char *value)
 		hide_inactive_tasks = atoi(value);
 	} else if (strcmp(key, "taskbar_hide_different_monitor") == 0) {
 		hide_task_diff_monitor = atoi(value);
+	} else if (strcmp(key, "taskbar_hide_if_empty") == 0) {
+		hide_taskbar_if_empty = atoi(value);
 	} else if (strcmp(key, "taskbar_always_show_all_desktop_tasks") == 0) {
 		always_show_all_desktop_tasks = atoi(value);
 	} else if (strcmp(key, "taskbar_sort_order") == 0) {
@@ -904,6 +1010,10 @@ void add_entry(char *key, char *value)
 		systray.brightness = atoi(value3);
 	} else if (strcmp(key, "systray_monitor") == 0) {
 		systray_monitor = atoi(value) - 1;
+	} else if (strcmp(key, "systray_name_filter") == 0) {
+		if (systray_hide_name_filter)
+			free(systray_hide_name_filter);
+		systray_hide_name_filter = strdup(value);
 	}
 
 	/* Launcher */
@@ -1068,20 +1178,21 @@ void add_entry(char *key, char *value)
 
 gboolean config_read_file(const char *path)
 {
-	FILE *fp;
-	char line[512];
-	char *key, *value;
-
-	if ((fp = fopen(path, "r")) == NULL)
+	FILE *fp = fopen(path, "r");
+	if (!fp)
 		return FALSE;
 
-	while (fgets(line, sizeof(line), fp) != NULL) {
+	char* line = NULL;
+	size_t line_size = 0;
+	while (getline(&line, &line_size, fp) >= 0) {
+		char *key, *value;
 		if (parse_line(line, &key, &value)) {
 			add_entry(key, value);
 			free(key);
 			free(value);
 		}
 	}
+	free(line);
 	fclose(fp);
 
 	if (!read_panel_position) {
@@ -1134,6 +1245,13 @@ gboolean config_read_default_path()
 	g_free(path1);
 
 	// copy tint2rc from system directory to user directory
+
+	fprintf(stderr, "tint2 warning: could not find a config file! Creating a default one.\n");
+	// According to the XDG Base Directory Specification (https://specifications.freedesktop.org/basedir-spec/basedir-spec-0.6.html)
+	// if the user's config directory does not exist, we should create it with permissions set to 0700.
+	if (!g_file_test(g_get_user_config_dir(), G_FILE_TEST_IS_DIR))
+		g_mkdir(g_get_user_config_dir(), 0700);
+
 	gchar *path2 = 0;
 	system_dirs = g_get_system_config_dirs();
 	for (int i = 0; system_dirs[i]; i++) {
@@ -1162,15 +1280,18 @@ gboolean config_read_default_path()
 		return result;
 	}
 
-	// generate empty config file
-	fprintf(stderr, "tint2 warning: could not find a config file!\n");
+	// generate config file
 	gchar *dir = g_build_filename(g_get_user_config_dir(), "tint2", NULL);
 	if (!g_file_test(dir, G_FILE_TEST_IS_DIR))
 		g_mkdir(dir, 0700);
 	g_free(dir);
 
 	path1 = g_build_filename(g_get_user_config_dir(), "tint2", "tint2rc", NULL);
-	copy_file("/dev/null", path1);
+	FILE *f = fopen(path1, "w");
+	if (f) {
+		fwrite(themes_tint2rc, 1, themes_tint2rc_len, f);
+		fclose(f);
+	}
 
 	gboolean result = config_read_file(path1);
 	config_path = strdup(path1);

src/execplugin/execplugin.c

@@ -21,6 +21,7 @@
 void execp_timer_callback(void *arg);
 char *execp_get_tooltip(void *obj);
 void execp_init_fonts();
+int execp_compute_desired_size(void *obj);
 void execp_dump_geometry(void *obj, int indent);
 
 void default_execp()
@@ -165,6 +166,7 @@ void init_execp_panel(void *p)
 		execp->area.parent = panel;
 		execp->area.panel = panel;
 		execp->area._dump_geometry = execp_dump_geometry;
+		execp->area._compute_desired_size = execp_compute_desired_size;
 		snprintf(execp->area.name,
 		         sizeof(execp->area.name),
 		         "Execp %s",
@@ -182,6 +184,7 @@ void init_execp_panel(void *p)
 
 		execp->area.resize_needed = TRUE;
 		execp->area.on_screen = TRUE;
+		instantiate_area_gradients(&execp->area);
 
 		if (!execp->backend->timer)
 			execp->backend->timer = add_timeout(10, 0, execp_timer_callback, execp, &execp->backend->timer);
@@ -223,7 +226,7 @@ void execp_default_font_changed()
 			}
 		}
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void cleanup_execp()
@@ -287,15 +290,85 @@ gboolean reload_icon(Execp *execp)
 	return FALSE;
 }
 
-gboolean resize_execp(void *obj)
+int execp_compute_desired_size(void *obj)
 {
-	Execp *execp = obj;
-	Panel *panel = execp->area.panel;
+	Execp *execp = (Execp *)obj;
+	Panel *panel = (Panel *)execp->area.panel;
 	int horiz_padding = (panel_horizontal ? execp->area.paddingxlr : execp->area.paddingy);
 	int vert_padding = (panel_horizontal ? execp->area.paddingy : execp->area.paddingxlr);
 	int interior_padding = execp->area.paddingx;
 
-	schedule_redraw(&execp->area);
+	int icon_w, icon_h;
+	if (reload_icon(execp)) {
+		if (execp->backend->icon) {
+			imlib_context_set_image(execp->backend->icon);
+			icon_w = imlib_image_get_width();
+			icon_h = imlib_image_get_height();
+		} else {
+			icon_w = icon_h = 0;
+		}
+	} else {
+		icon_w = icon_h = 0;
+	}
+
+	int text_next_line = !panel_horizontal && icon_w > execp->area.width / 2;
+
+	int txt_height_ink, txt_height, txt_width;
+	if (panel_horizontal) {
+		get_text_size2(execp->backend->font_desc,
+					   &txt_height_ink,
+					   &txt_height,
+					   &txt_width,
+					   panel->area.height,
+					   panel->area.width,
+					   execp->backend->text,
+					   strlen(execp->backend->text),
+					   PANGO_WRAP_WORD_CHAR,
+					   PANGO_ELLIPSIZE_NONE,
+					   execp->backend->has_markup);
+	} else {
+		get_text_size2(execp->backend->font_desc,
+					   &txt_height_ink,
+					   &txt_height,
+					   &txt_width,
+					   panel->area.height,
+					   !text_next_line
+						   ? execp->area.width - icon_w - (icon_w ? interior_padding : 0) - 2 * horiz_padding -
+								 left_right_border_width(&execp->area)
+						   : execp->area.width - 2 * horiz_padding - left_right_border_width(&execp->area),
+					   execp->backend->text,
+					   strlen(execp->backend->text),
+					   PANGO_WRAP_WORD_CHAR,
+					   PANGO_ELLIPSIZE_NONE,
+					   execp->backend->has_markup);
+	}
+
+	if (panel_horizontal) {
+		int new_size = txt_width;
+		if (icon_w)
+			new_size += interior_padding + icon_w;
+		new_size += 2 * horiz_padding + left_right_border_width(&execp->area);
+		return new_size;
+	} else {
+		int new_size;
+		if (!text_next_line) {
+			new_size = txt_height + 2 * vert_padding + top_bottom_border_width(&execp->area);
+			new_size = MAX(new_size, icon_h + 2 * vert_padding + top_bottom_border_width(&execp->area));
+		} else {
+			new_size =
+				icon_h + interior_padding + txt_height + 2 * vert_padding + top_bottom_border_width(&execp->area);
+		}
+		return new_size;
+	}
+}
+
+gboolean resize_execp(void *obj)
+{
+	Execp *execp = (Execp *)obj;
+	Panel *panel = (Panel *)execp->area.panel;
+	int horiz_padding = (panel_horizontal ? execp->area.paddingxlr : execp->area.paddingy);
+	int vert_padding = (panel_horizontal ? execp->area.paddingy : execp->area.paddingxlr);
+	int interior_padding = execp->area.paddingx;
 
 	int icon_w, icon_h;
 	if (reload_icon(execp)) {
@@ -405,6 +478,8 @@ gboolean resize_execp(void *obj)
 		}
 	}
 
+	schedule_redraw(&execp->area);
+
 	return result;
 }
 
@@ -568,6 +643,7 @@ void execp_timer_callback(void *arg)
 		close(pipe_fd[0]);
 		return;
 	} else if (child == 0) {
+		fprintf(stderr, "Executing: %s\n", execp->backend->command);
 		// We are in the child
 		close(pipe_fd[0]);
 		dup2(pipe_fd[1], 1); // 1 is stdout

src/freespace/freespace.c

@@ -30,31 +30,57 @@
 #include "freespace.h"
 #include "common.h"
 
+int freespace_area_compute_desired_size(void *obj);
+
 void init_freespace_panel(void *p)
 {
 	Panel *panel = (Panel *)p;
-	FreeSpace *freespace = &panel->freespace;
 
-	if (!freespace->area.bg)
-		freespace->area.bg = &g_array_index(backgrounds, Background, 0);
-	freespace->area.parent = p;
-	freespace->area.panel = p;
-	snprintf(freespace->area.name, sizeof(freespace->area.name), "Freespace");
-	freespace->area.size_mode = LAYOUT_FIXED;
-	freespace->area.resize_needed = 1;
-	freespace->area.on_screen = TRUE;
-	freespace->area._resize = resize_freespace;
+	// Make sure this is only done once if there are multiple items
+	if (panel->freespace_list)
+		return;
+
+	for (size_t k = 0; k < strlen(panel_items_order); k++) {
+		if (panel_items_order[k] == 'F') {
+			FreeSpace *freespace = (FreeSpace *) calloc(1, sizeof(FreeSpace));
+			panel->freespace_list = g_list_append(panel->freespace_list, freespace);
+			if (!freespace->area.bg)
+				freespace->area.bg = &g_array_index(backgrounds, Background, 0);
+			freespace->area.parent = p;
+			freespace->area.panel = p;
+			snprintf(freespace->area.name, sizeof(freespace->area.name), "Freespace");
+			freespace->area.size_mode = LAYOUT_FIXED;
+			freespace->area.resize_needed = 1;
+			freespace->area.on_screen = TRUE;
+			freespace->area._resize = resize_freespace;
+			freespace->area._compute_desired_size = freespace_area_compute_desired_size;
+		}
+	}
+}
+
+void cleanup_freespace(Panel *panel)
+{
+	if (panel->freespace_list)
+		g_list_free_full(panel->freespace_list, free);
+	panel->freespace_list = NULL;
 }
 
 int freespace_get_max_size(Panel *p)
 {
+	if (panel_shrink)
+		return 0;
 	// Get space used by every element except the freespace
 	int size = 0;
+	int spacers = 0;
 	for (GList *walk = p->area.children; walk; walk = g_list_next(walk)) {
 		Area *a = (Area *)walk->data;
 
-		if (a->_resize == resize_freespace || !a->on_screen)
+		if (!a->on_screen)
 			continue;
+		if (a->_resize == resize_freespace) {
+			spacers++;
+			continue;
+		}
 
 		if (panel_horizontal)
 			size += a->width + p->area.paddingx;
@@ -67,7 +93,13 @@ int freespace_get_max_size(Panel *p)
 	else
 		size = p->area.height - size - top_bottom_border_width(&p->area) - p->area.paddingxlr;
 
-	return size;
+	return size / spacers;
+}
+
+int freespace_area_compute_desired_size(void *obj)
+{
+	FreeSpace *freespace = (FreeSpace *) obj;
+	return freespace_get_max_size((Panel *)freespace->area.panel);
 }
 
 gboolean resize_freespace(void *obj)
@@ -89,6 +121,6 @@ gboolean resize_freespace(void *obj)
 	}
 
 	schedule_redraw(&freespace->area);
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 	return TRUE;
 }

src/freespace/freespace.h

@@ -12,7 +12,9 @@ typedef struct FreeSpace {
 	Area area;
 } FreeSpace;
 
-void cleanup_freespace();
+struct Panel;
+
+void cleanup_freespace(struct Panel *panel);
 void init_freespace_panel(void *panel);
 
 gboolean resize_freespace(void *obj);

src/launcher/apps-common.c

@@ -26,6 +26,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 
 static gint compare_strings(gconstpointer a, gconstpointer b)
 {
@@ -110,7 +111,7 @@ void expand_exec(DesktopEntry *entry, const char *path)
 
 gboolean read_desktop_file_full_path(const char *path, DesktopEntry *entry)
 {
-	entry->name = entry->generic_name = entry->icon = entry->exec = NULL;
+	entry->name = entry->generic_name = entry->icon = entry->exec = entry->cwd = NULL;
 	entry->hidden_from_menus = FALSE;
 
 	FILE *fp = fopen(path, "rt");
@@ -185,6 +186,8 @@ gboolean read_desktop_file_full_path(const char *path, DesktopEntry *entry)
 				}
 			} else if (!entry->exec && strcmp(key, "Exec") == 0) {
 				entry->exec = strdup(value);
+			} else if (!entry->cwd && strcmp(key, "Path") == 0) {
+				entry->cwd = strdup(value);
 			} else if (!entry->icon && strcmp(key, "Icon") == 0) {
 				entry->icon = strdup(value);
 			} else if (strcmp(key, "NoDisplay") == 0) {
@@ -209,11 +212,11 @@ gboolean read_desktop_file_from_dir(const char *path, const char *file_name, Des
 		g_free(full_path);
 		return TRUE;
 	}
-	free(entry->name);
-	free(entry->generic_name);
-	free(entry->icon);
-	free(entry->exec);
-	entry->name = entry->generic_name = entry->icon = entry->exec = NULL;
+	free_and_null(entry->name);
+	free_and_null(entry->generic_name);
+	free_and_null(entry->icon);
+	free_and_null(entry->exec);
+	free_and_null(entry->cwd);
 
 	GList *subdirs = NULL;
 
@@ -252,7 +255,7 @@ gboolean read_desktop_file_from_dir(const char *path, const char *file_name, Des
 gboolean read_desktop_file(const char *path, DesktopEntry *entry)
 {
 	entry->path = strdup(path);
-	entry->name = entry->generic_name = entry->icon = entry->exec = NULL;
+	entry->name = entry->generic_name = entry->icon = entry->exec = entry->cwd = NULL;
 
 	if (strchr(path, '/'))
 		return read_desktop_file_full_path(path, entry);
@@ -265,12 +268,12 @@ gboolean read_desktop_file(const char *path, DesktopEntry *entry)
 
 void free_desktop_entry(DesktopEntry *entry)
 {
-	free(entry->name);
-	free(entry->generic_name);
-	free(entry->icon);
-	free(entry->exec);
-	free(entry->path);
-	entry->name = entry->generic_name = entry->icon = entry->exec = entry->path = NULL;
+	free_and_null(entry->name);
+	free_and_null(entry->generic_name);
+	free_and_null(entry->icon);
+	free_and_null(entry->exec);
+	free_and_null(entry->path);
+	free_and_null(entry->cwd);
 }
 
 void test_read_desktop_file()

src/launcher/apps-common.h

@@ -15,6 +15,7 @@ typedef struct DesktopEntry {
 	char *exec;
 	char *icon;
 	char *path;
+	char *cwd;
 	gboolean hidden_from_menus;
 } DesktopEntry;
 

src/launcher/icon-theme-common.c

@@ -740,7 +740,7 @@ void add_icon_path_to_cache(IconThemeWrapper *wrapper, const char *icon_name, in
 	g_free(key);
 }
 
-char *get_icon_path(IconThemeWrapper *wrapper, const char *icon_name, int size)
+char *get_icon_path(IconThemeWrapper *wrapper, const char *icon_name, int size, gboolean use_fallbacks)
 {
 	if (!wrapper)
 		return NULL;
@@ -761,6 +761,8 @@ char *get_icon_path(IconThemeWrapper *wrapper, const char *icon_name, int size)
 		return path;
 	}
 
+	if (!use_fallbacks)
+		goto notfound;
 	fprintf(stderr, YELLOW "Icon not found in default theme: %s" RESET "\n", icon_name);
 	load_fallbacks(wrapper);
 

src/launcher/icon-theme-common.h

@@ -51,7 +51,7 @@ void free_icon_theme(IconTheme *theme);
 
 // Returns the full path to an icon file (or NULL) given the list of icon themes to search and the icon name
 // Note: needs to be released with free().
-char *get_icon_path(IconThemeWrapper *wrapper, const char *icon_name, int size);
+char *get_icon_path(IconThemeWrapper *wrapper, const char *icon_name, int size, gboolean use_fallbacks);
 
 // Returns a list of the directories used to store icons.
 // Do not free the result, it is cached.

src/launcher/launcher.c

@@ -30,7 +30,6 @@
 #include <glib/gi18n.h>
 #include <glib.h>
 #include <glib/gstdio.h>
-#include <gdk-pixbuf/gdk-pixbuf.h>
 #include <sys/types.h>
 
 #include "window.h"
@@ -53,6 +52,7 @@ char *icon_theme_name_xsettings;
 int launcher_icon_theme_override;
 int startup_notifications;
 Background *launcher_icon_bg;
+GList *launcher_icon_gradients;
 
 Imlib_Image scale_icon(Imlib_Image original, int icon_size);
 void free_icon(Imlib_Image icon);
@@ -61,6 +61,7 @@ void launcher_reload_icon(Launcher *launcher, LauncherIcon *launcherIcon);
 void launcher_reload_icon_image(Launcher *launcher, LauncherIcon *launcherIcon);
 void launcher_reload_hidden_icons(Launcher *launcher);
 void launcher_icon_on_change_layout(void *obj);
+int launcher_compute_desired_size(void *obj);
 
 void default_launcher()
 {
@@ -75,6 +76,7 @@ void default_launcher()
 	launcher_icon_theme_override = 0;
 	startup_notifications = 0;
 	launcher_icon_bg = NULL;
+	launcher_icon_gradients = NULL;
 }
 
 void init_launcher()
@@ -92,6 +94,7 @@ void init_launcher_panel(void *p)
 	launcher->area._draw_foreground = NULL;
 	launcher->area.size_mode = LAYOUT_FIXED;
 	launcher->area._resize = resize_launcher;
+	launcher->area._compute_desired_size = launcher_compute_desired_size;
 	launcher->area.resize_needed = 1;
 	schedule_redraw(&launcher->area);
 	if (!launcher->area.bg)
@@ -104,8 +107,12 @@ void init_launcher_panel(void *p)
 	if (launcher->list_apps == NULL)
 		return;
 
+	// This will be recomputed on resize, we just initialize to a non-zero value
+	launcher->icon_size = launcher_max_icon_size > 0 ? launcher_max_icon_size : 24;
+
 	launcher->area.on_screen = TRUE;
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
+	instantiate_area_gradients(&launcher->area);
 
 	launcher_load_themes(launcher);
 	launcher_load_icons(launcher);
@@ -158,27 +165,82 @@ void cleanup_launcher_theme(Launcher *launcher)
 	launcher->icon_theme_wrapper = NULL;
 }
 
-gboolean resize_launcher(void *obj)
+int launcher_compute_icon_size(Launcher *launcher)
 {
-	Launcher *launcher = obj;
-	int icons_per_column = 1, icons_per_row = 1, margin = 0;
-
-	int icon_size;
-	if (panel_horizontal) {
-		icon_size = launcher->area.height;
-	} else {
-		icon_size = launcher->area.width;
-	}
+	int icon_size = panel_horizontal ? launcher->area.height : launcher->area.width;
 	icon_size = icon_size - MAX(left_right_border_width(&launcher->area), top_bottom_border_width(&launcher->area)) -
 	            (2 * launcher->area.paddingy);
 	if (launcher_max_icon_size > 0 && icon_size > launcher_max_icon_size)
 		icon_size = launcher_max_icon_size;
+	return icon_size;
+}
+
+void launcher_compute_geometry(Launcher *launcher,
+                               int *size,
+                               int *icon_size,
+                               int *icons_per_column,
+                               int *icons_per_row,
+                               int *margin)
+{
+	int count = 0;
+	for (GSList *l = launcher->list_icons; l; l = l->next) {
+		LauncherIcon *launcherIcon = (LauncherIcon *)l->data;
+		if (launcherIcon->area.on_screen)
+			count++;
+	}
+
+	*icon_size = launcher_compute_icon_size(launcher);
+	*icons_per_column = 1;
+	*icons_per_row = 1;
+	*margin = 0;
+	if (panel_horizontal) {
+		if (!count) {
+			*size = 0;
+		} else {
+			int height = launcher->area.height - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy;
+			// here icons_per_column always higher than 0
+			*icons_per_column = (height + launcher->area.paddingx) / (*icon_size + launcher->area.paddingx);
+			*margin = height - (*icons_per_column - 1) * (*icon_size + launcher->area.paddingx) - *icon_size;
+			*icons_per_row = count / *icons_per_column + (count % *icons_per_column != 0);
+			*size = left_right_border_width(&launcher->area) + 2 * launcher->area.paddingxlr +
+			        (*icon_size * *icons_per_row) + ((*icons_per_row - 1) * launcher->area.paddingx);
+		}
+	} else {
+		if (!count) {
+			*size = 0;
+		} else {
+			int width = launcher->area.width - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy;
+			// here icons_per_row always higher than 0
+			*icons_per_row = (width + launcher->area.paddingx) / (*icon_size + launcher->area.paddingx);
+			*margin = width - (*icons_per_row - 1) * (*icon_size + launcher->area.paddingx) - *icon_size;
+			*icons_per_column = count / *icons_per_row + (count % *icons_per_row != 0);
+			*size = top_bottom_border_width(&launcher->area) + 2 * launcher->area.paddingxlr +
+			        (*icon_size * *icons_per_column) + ((*icons_per_column - 1) * launcher->area.paddingx);
+		}
+	}
+}
+
+int launcher_compute_desired_size(void *obj)
+{
+	Launcher *launcher = (Launcher *)obj;
+
+	int size, icon_size, icons_per_column, icons_per_row, margin;
+	launcher_compute_geometry(launcher, &size, &icon_size, &icons_per_column, &icons_per_row, &margin);
+	return size;
+}
+
+gboolean resize_launcher(void *obj)
+{
+	Launcher *launcher = (Launcher *)obj;
+
+	int size, icons_per_column, icons_per_row, margin;
+	launcher_compute_geometry(launcher, &size, &launcher->icon_size, &icons_per_column, &icons_per_row, &margin);
 
 	// Resize icons if necessary
 	for (GSList *l = launcher->list_icons; l; l = l->next) {
 		LauncherIcon *launcherIcon = (LauncherIcon *)l->data;
-		if (launcherIcon->icon_size != icon_size || !launcherIcon->image) {
-			launcherIcon->icon_size = icon_size;
+		if (launcherIcon->icon_size != launcher->icon_size || !launcherIcon->image) {
+			launcherIcon->icon_size = launcher->icon_size;
 			launcherIcon->area.width = launcherIcon->icon_size;
 			launcherIcon->area.height = launcherIcon->icon_size;
 			launcher_reload_icon_image(launcher, launcherIcon);
@@ -187,35 +249,25 @@ gboolean resize_launcher(void *obj)
 	save_icon_cache(launcher->icon_theme_wrapper);
 
 	int count = 0;
+	gboolean needs_repositioning = FALSE;
 	for (GSList *l = launcher->list_icons; l; l = l->next) {
 		LauncherIcon *launcherIcon = (LauncherIcon *)l->data;
-		if (launcherIcon->area.on_screen)
+		if (launcherIcon->area.on_screen) {
 			count++;
+			if (launcherIcon->area.posx < 0 || launcherIcon->area.posy < 0)
+				needs_repositioning = TRUE;
+		}
 	}
 
-	if (panel_horizontal) {
-		if (!count) {
-			launcher->area.width = 0;
+	if (!needs_repositioning) {
+		if (panel_horizontal) {
+			if (launcher->area.width == size)
+				return FALSE;
+			launcher->area.width = size;
 		} else {
-			int height = launcher->area.height - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy;
-			// here icons_per_column always higher than 0
-			icons_per_column = (height + launcher->area.paddingx) / (icon_size + launcher->area.paddingx);
-			margin = height - (icons_per_column - 1) * (icon_size + launcher->area.paddingx) - icon_size;
-			icons_per_row = count / icons_per_column + (count % icons_per_column != 0);
-			launcher->area.width = left_right_border_width(&launcher->area) + 2 * launcher->area.paddingxlr +
-			                       (icon_size * icons_per_row) + ((icons_per_row - 1) * launcher->area.paddingx);
-		}
-	} else {
-		if (!count) {
-			launcher->area.height = 0;
-		} else {
-			int width = launcher->area.width - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy;
-			// here icons_per_row always higher than 0
-			icons_per_row = (width + launcher->area.paddingx) / (icon_size + launcher->area.paddingx);
-			margin = width - (icons_per_row - 1) * (icon_size + launcher->area.paddingx) - icon_size;
-			icons_per_column = count / icons_per_row + (count % icons_per_row != 0);
-			launcher->area.height = top_bottom_border_width(&launcher->area) + 2 * launcher->area.paddingxlr +
-			                        (icon_size * icons_per_column) + ((icons_per_column - 1) * launcher->area.paddingx);
+			if (launcher->area.height == size)
+				return FALSE;
+			launcher->area.height = size;
 		}
 	}
 
@@ -241,17 +293,17 @@ gboolean resize_launcher(void *obj)
 		// printf("launcher %d : %d,%d\n", i, posx, posy);
 		if (panel_horizontal) {
 			if (i % icons_per_column) {
-				posy += icon_size + launcher->area.paddingx;
+				posy += launcher->icon_size + launcher->area.paddingx;
 			} else {
 				posy = start;
-				posx += (icon_size + launcher->area.paddingx);
+				posx += (launcher->icon_size + launcher->area.paddingx);
 			}
 		} else {
 			if (i % icons_per_row) {
-				posx += icon_size + launcher->area.paddingx;
+				posx += launcher->icon_size + launcher->area.paddingx;
 			} else {
 				posx = start;
-				posy += (icon_size + launcher->area.paddingx);
+				posy += (launcher->icon_size + launcher->area.paddingx);
 			}
 		}
 	}
@@ -280,6 +332,12 @@ void launcher_icon_on_change_layout(void *obj)
 	launcherIcon->area.height = launcherIcon->icon_size;
 }
 
+int launcher_icon_compute_desired_size(void *obj)
+{
+	LauncherIcon *icon = (LauncherIcon *)obj;
+	return icon->icon_size;
+}
+
 char *launcher_icon_get_tooltip_text(void *obj)
 {
 	LauncherIcon *launcherIcon = (LauncherIcon *)obj;
@@ -309,12 +367,7 @@ void draw_launcher_icon(void *obj, cairo_t *c)
 void launcher_icon_dump_geometry(void *obj, int indent)
 {
 	LauncherIcon *launcherIcon = (LauncherIcon *)obj;
-	fprintf(stderr,
-			"%*sIcon: w = h = %d, name = %s\n",
-			indent,
-			"",
-			launcherIcon->icon_size,
-			launcherIcon->icon_name);
+	fprintf(stderr, "%*sIcon: w = h = %d, name = %s\n", indent, "", launcherIcon->icon_size, launcherIcon->icon_name);
 }
 
 Imlib_Image scale_icon(Imlib_Image original, int icon_size)
@@ -397,6 +450,8 @@ void launcher_action(LauncherIcon *icon, XEvent *evt)
 		// Allow children to exist after parent destruction
 		setsid();
 		// Run the command
+		if (icon->cwd)
+			chdir(icon->cwd);
 		execl("/bin/sh", "/bin/sh", "-c", icon->cmd, NULL);
 		fprintf(stderr, "Failed to execlp %s\n", icon->cmd);
 #if HAVE_SN
@@ -416,22 +471,29 @@ void launcher_action(LauncherIcon *icon, XEvent *evt)
 	free(cmd);
 }
 
+
+
 // Populates the list_icons list from the list_apps list
 void launcher_load_icons(Launcher *launcher)
 {
 	// Load apps (.desktop style launcher items)
 	GSList *app = launcher->list_apps;
+	int index = 0;
 	while (app != NULL) {
-		LauncherIcon *launcherIcon = calloc(1, sizeof(LauncherIcon));
+		index++;
+		LauncherIcon *launcherIcon = (LauncherIcon *)calloc(1, sizeof(LauncherIcon));
 		launcherIcon->area.panel = launcher->area.panel;
 		launcherIcon->area._draw_foreground = draw_launcher_icon;
 		launcherIcon->area.size_mode = LAYOUT_FIXED;
 		launcherIcon->area._resize = NULL;
+		launcherIcon->area._compute_desired_size = launcher_icon_compute_desired_size;
+		sprintf(launcherIcon->area.name, "LauncherIcon %d", index);
 		launcherIcon->area.resize_needed = 0;
 		launcherIcon->area.has_mouse_over_effect = panel_config.mouse_effects;
 		launcherIcon->area.has_mouse_press_effect = launcherIcon->area.has_mouse_over_effect;
 		launcherIcon->area.bg = launcher_icon_bg;
 		launcherIcon->area.on_screen = TRUE;
+		launcherIcon->area.posx = -1;
 		launcherIcon->area._on_change_layout = launcher_icon_on_change_layout;
 		launcherIcon->area._dump_geometry = launcher_icon_dump_geometry;
 		if (launcher_tooltip_enabled) {
@@ -442,7 +504,9 @@ void launcher_load_icons(Launcher *launcher)
 		launcherIcon->config_path = strdup(app->data);
 		add_area(&launcherIcon->area, (Area *)launcher);
 		launcher->list_icons = g_slist_append(launcher->list_icons, launcherIcon);
+		launcherIcon->icon_size = launcher->icon_size;
 		launcher_reload_icon(launcher, launcherIcon);
+		instantiate_area_gradients(&launcherIcon->area);
 		app = g_slist_next(app);
 	}
 }
@@ -455,6 +519,12 @@ void launcher_reload_icon(Launcher *launcher, LauncherIcon *launcherIcon)
 		if (launcherIcon->cmd)
 			free(launcherIcon->cmd);
 		launcherIcon->cmd = strdup(entry.exec);
+		if (launcherIcon->cwd) 
+			free(launcherIcon->cwd);
+		if (entry.cwd)
+			launcherIcon->cwd = strdup(entry.cwd);
+		else
+			launcherIcon->cwd = NULL;
 		if (launcherIcon->icon_name)
 			free(launcherIcon->icon_name);
 		launcherIcon->icon_name = entry.icon ? strdup(entry.icon) : strdup(DEFAULT_ICON);
@@ -472,8 +542,7 @@ void launcher_reload_icon(Launcher *launcher, LauncherIcon *launcherIcon)
 			}
 		}
 		launcher_reload_icon_image(launcher, launcherIcon);
-		if (!launcherIcon->area.on_screen)
-			show(&launcherIcon->area);
+		show(&launcherIcon->area);
 	} else {
 		hide(&launcherIcon->area);
 	}
@@ -496,13 +565,13 @@ void launcher_reload_icon_image(Launcher *launcher, LauncherIcon *launcherIcon)
 	free_icon(launcherIcon->image_pressed);
 	launcherIcon->image = NULL;
 
-	char *new_icon_path = get_icon_path(launcher->icon_theme_wrapper, launcherIcon->icon_name, launcherIcon->icon_size);
+	char *new_icon_path = get_icon_path(launcher->icon_theme_wrapper, launcherIcon->icon_name, launcherIcon->icon_size, TRUE);
 	if (new_icon_path)
 		launcherIcon->image = load_image(new_icon_path, 1);
 	// On loading error, fallback to default
 	if (!launcherIcon->image) {
 		free(new_icon_path);
-		new_icon_path = get_icon_path(launcher->icon_theme_wrapper, DEFAULT_ICON, launcherIcon->icon_size);
+		new_icon_path = get_icon_path(launcher->icon_theme_wrapper, DEFAULT_ICON, launcherIcon->icon_size, TRUE);
 		if (new_icon_path)
 			launcherIcon->image = imlib_load_image_immediately(new_icon_path);
 	}
@@ -515,14 +584,15 @@ void launcher_reload_icon_image(Launcher *launcher, LauncherIcon *launcherIcon)
 
 	if (panel_config.mouse_effects) {
 		launcherIcon->image_hover = adjust_icon(launcherIcon->image,
-												panel_config.mouse_over_alpha,
-												panel_config.mouse_over_saturation,
-												panel_config.mouse_over_brightness);
+		                                        panel_config.mouse_over_alpha,
+		                                        panel_config.mouse_over_saturation,
+		                                        panel_config.mouse_over_brightness);
 		launcherIcon->image_pressed = adjust_icon(launcherIcon->image,
-												  panel_config.mouse_pressed_alpha,
-												  panel_config.mouse_pressed_saturation,
-												  panel_config.mouse_pressed_brightness);
+		                                          panel_config.mouse_pressed_alpha,
+		                                          panel_config.mouse_pressed_saturation,
+		                                          panel_config.mouse_pressed_brightness);
 	}
+	schedule_redraw(&launcherIcon->area);
 }
 
 // Populates the icon_theme_wrapper list
@@ -549,5 +619,5 @@ void launcher_default_icon_theme_changed()
 		launcher_load_icons(launcher);
 		launcher->area.resize_needed = 1;
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }

src/launcher/launcher.h

@@ -18,6 +18,7 @@ typedef struct Launcher {
 	GSList *list_apps;  // List of char*, each is a path to a app.desktop file
 	GSList *list_icons; // List of LauncherIcon*
 	IconThemeWrapper *icon_theme_wrapper;
+	int icon_size;
 } Launcher;
 
 typedef struct LauncherIcon {
@@ -28,6 +29,7 @@ typedef struct LauncherIcon {
 	Imlib_Image image_hover;
 	Imlib_Image image_pressed;
 	char *cmd;
+	char *cwd;
 	char *icon_name;
 	char *icon_path;
 	char *icon_tooltip;
@@ -46,6 +48,7 @@ extern char *icon_theme_name_config;
 extern int launcher_icon_theme_override;
 extern int startup_notifications;
 extern Background *launcher_icon_bg;
+extern GList *launcher_icon_gradients;
 
 // default global data
 void default_launcher();

src/panel.c

@@ -56,11 +56,13 @@ gboolean panel_refresh;
 gboolean task_dragged;
 char *panel_window_name = NULL;
 gboolean debug_geometry;
+gboolean debug_gradients;
 
 gboolean panel_autohide;
 int panel_autohide_show_timeout;
 int panel_autohide_hide_timeout;
 int panel_autohide_height;
+gboolean panel_shrink;
 Strut panel_strut_policy;
 char *panel_items_order;
 
@@ -73,6 +75,7 @@ Panel *panels;
 int num_panels;
 
 GArray *backgrounds;
+GArray *gradients;
 
 Imlib_Image default_icon;
 char *default_font = NULL;
@@ -90,6 +93,7 @@ void default_panel()
 	panel_autohide_show_timeout = 0;
 	panel_autohide_hide_timeout = 0;
 	panel_autohide_height = 5; // for vertical panels this is of course the width
+	panel_shrink = FALSE;
 	panel_strut_policy = STRUT_FOLLOW_SIZE;
 	panel_dock = FALSE;         // default not in the dock
 	panel_layer = BOTTOM_LAYER; // default is bottom layer
@@ -98,6 +102,7 @@ void default_panel()
 	max_tick_urgent = 14;
 	mouse_left = TOGGLE_ICONIFY;
 	backgrounds = g_array_new(0, 0, sizeof(Background));
+	gradients = g_array_new(0, 0, sizeof(GradientClass));
 
 	memset(&panel_config, 0, sizeof(Panel));
 	snprintf(panel_config.area.name, sizeof(panel_config.area.name), "Panel");
@@ -113,6 +118,9 @@ void default_panel()
 	Background transparent_bg;
 	init_background(&transparent_bg);
 	g_array_append_val(backgrounds, transparent_bg);
+	GradientClass transparent_gradient;
+	init_gradient(&transparent_gradient, GRADIENT_VERTICAL);
+	g_array_append_val(gradients, transparent_gradient);
 }
 
 void cleanup_panel()
@@ -136,6 +144,7 @@ void cleanup_panel()
 			XDestroyWindow(server.display, p->main_win);
 		p->main_win = 0;
 		stop_timeout(p->autohide_timeout);
+		cleanup_freespace(p);
 	}
 
 	free(panel_items_order);
@@ -144,9 +153,17 @@ void cleanup_panel()
 	panel_window_name = NULL;
 	free(panels);
 	panels = NULL;
-	if (backgrounds)
-		g_array_free(backgrounds, 1);
+
+	free_area(&panel_config.area);
+
+	g_array_free(backgrounds, TRUE);
 	backgrounds = NULL;
+	if (gradients) {
+		for (guint i = 0; i < gradients->len; i++)
+			cleanup_gradient(&g_array_index(gradients, GradientClass, i));
+		g_array_free(gradients, TRUE);
+	}
+	gradients = NULL;
 	pango_font_description_free(panel_config.g_task.font_desc);
 	panel_config.g_task.font_desc = NULL;
 	pango_font_description_free(panel_config.taskbarname_font_desc);
@@ -171,6 +188,7 @@ void init_panel()
 	init_battery();
 #endif
 	init_taskbar();
+	init_separator();
 	init_execp();
 
 	// number of panels (one monitor or 'all' monitors)
@@ -204,7 +222,9 @@ void init_panel()
 		p->area.size_mode = LAYOUT_DYNAMIC;
 		p->area._resize = resize_panel;
 		p->area._clear = panel_clear_background;
+		p->separator_list = NULL;
 		init_panel_size_and_position(p);
+		instantiate_area_gradients(&p->area);
 		// add children according to panel_items
 		for (int k = 0; k < strlen(panel_items_order); k++) {
 			if (panel_items_order[k] == 'L')
@@ -223,6 +243,8 @@ void init_panel()
 				init_clock_panel(p);
 			if (panel_items_order[k] == 'F' && !strstr(panel_items_order, "T"))
 				init_freespace_panel(p);
+			if (panel_items_order[k] == ':')
+				init_separator_panel(p);
 			if (panel_items_order[k] == 'E')
 				init_execp_panel(p);
 		}
@@ -276,9 +298,8 @@ void init_panel()
 	update_all_taskbars_visibility();
 }
 
-void init_panel_size_and_position(Panel *panel)
+void panel_compute_size(Panel *panel)
 {
-	// detect panel size
 	if (panel_horizontal) {
 		if (panel->area.width == 0) {
 			panel->fractional_width = TRUE;
@@ -331,6 +352,11 @@ void init_panel_size_and_position(Panel *panel)
 	if (panel->area.height + panel->marginy > server.monitors[panel->monitor].height)
 		panel->area.height = server.monitors[panel->monitor].height - panel->marginy;
 
+	panel->max_size = panel_horizontal ? panel->area.width : panel->area.height;
+}
+
+void panel_compute_position(Panel *panel)
+{
 	// panel position determined here
 	if (panel_position & LEFT) {
 		panel->posx = server.monitors[panel->monitor].x + panel->marginx;
@@ -371,6 +397,12 @@ void init_panel_size_and_position(Panel *panel)
 	// panel->area.height);
 }
 
+void init_panel_size_and_position(Panel *panel)
+{
+	panel_compute_size(panel);
+	panel_compute_position(panel);
+}
+
 gboolean resize_panel(void *obj)
 {
 	Panel *panel = (Panel *)obj;
@@ -382,94 +414,117 @@ gboolean resize_panel(void *obj)
 		int width = panel->taskbar[server.desktop].area.width;
 		int height = panel->taskbar[server.desktop].area.height;
 		for (int i = 0; i < panel->num_desktops; i++) {
+			panel->taskbar[i].area.resize_needed =
+			    panel->taskbar[i].area.width != width || panel->taskbar[i].area.height != height;
 			panel->taskbar[i].area.width = width;
 			panel->taskbar[i].area.height = height;
-			panel->taskbar[i].area.resize_needed = 1;
 		}
-	}
-	if (taskbar_mode == MULTI_DESKTOP && taskbar_enabled && taskbar_distribute_size) {
-		// Distribute the available space between taskbars
-
-		// Compute the total available size, and the total size requested by the taskbars
-		int total_size = 0;
-		int total_name_size = 0;
-		int total_items = 0;
+	} else if (taskbar_mode == MULTI_DESKTOP && taskbar_enabled && taskbar_distribute_size) {
 		for (int i = 0; i < panel->num_desktops; i++) {
-			if (panel_horizontal) {
-				total_size += panel->taskbar[i].area.width;
-			} else {
-				total_size += panel->taskbar[i].area.height;
-			}
-
 			Taskbar *taskbar = &panel->taskbar[i];
-			GList *l;
-			for (l = taskbar->area.children; l; l = l->next) {
+			taskbar->area.old_width = taskbar->area.width;
+			taskbar->area.old_height = taskbar->area.height;
+		}
+
+		// The total available size
+		int total_size = 0;
+		for (int i = 0; i < panel->num_desktops; i++) {
+			Taskbar *taskbar = &panel->taskbar[i];
+			if (!taskbar->area.on_screen)
+				continue;
+			total_size += panel_horizontal ? taskbar->area.width : taskbar->area.height;
+		}
+
+		// Reserve size for padding, taskbarname and spacings
+		for (int i = 0; i < panel->num_desktops; i++) {
+			Taskbar *taskbar = &panel->taskbar[i];
+			if (!taskbar->area.on_screen)
+				continue;
+			if (panel_horizontal)
+				taskbar->area.width = 2 * taskbar->area.paddingxlr;
+			else
+				taskbar->area.height = 2 * taskbar->area.paddingxlr;
+			if (taskbarname_enabled && taskbar->area.children) {
+				Area *name = (Area *)taskbar->area.children->data;
+				if (name->on_screen) {
+					if (panel_horizontal)
+						taskbar->area.width += name->width;
+					else
+						taskbar->area.height += name->height;
+				}
+			}
+			gboolean first_child = TRUE;
+			for (GList *l = taskbar->area.children; l; l = l->next) {
 				Area *child = (Area *)l->data;
 				if (!child->on_screen)
 					continue;
-				total_items++;
-			}
-			if (taskbarname_enabled) {
-				if (taskbar->area.children) {
-					total_items--;
-					Area *name = (Area *)taskbar->area.children->data;
-					if (panel_horizontal) {
-						total_name_size += name->width;
-					} else {
-						total_name_size += name->height;
-					}
+				if (!first_child) {
+					if (panel_horizontal)
+						taskbar->area.width += taskbar->area.paddingx;
+					else
+						taskbar->area.height += taskbar->area.paddingy;
 				}
+				first_child = FALSE;
+			}
+			total_size -= panel_horizontal ? taskbar->area.width : taskbar->area.height;
+		}
+
+		// Compute the total number of tasks
+		int num_tasks = 0;
+		for (int i = 0; i < panel->num_desktops; i++) {
+			Taskbar *taskbar = &panel->taskbar[i];
+			if (!taskbar->area.on_screen)
+				continue;
+			for (GList *l = taskbar->area.children; l; l = l->next) {
+				Area *child = (Area *)l->data;
+				if (!child->on_screen)
+					continue;
+				if (taskbarname_enabled && l == taskbar->area.children)
+					continue;
+				num_tasks++;
 			}
 		}
-		// Distribute the space proportionally to the requested size (that is, to the
-		// number of tasks in each taskbar)
-		if (total_items) {
-			int actual_name_size;
-			if (total_name_size <= total_size) {
-				actual_name_size = total_name_size / panel->num_desktops;
-			} else {
-				actual_name_size = total_size / panel->num_desktops;
-			}
-			total_size -= total_name_size;
 
+		// Distribute the remaining size between tasks
+		if (num_tasks > 0) {
+			int task_size = total_size / num_tasks;
 			for (int i = 0; i < panel->num_desktops; i++) {
 				Taskbar *taskbar = &panel->taskbar[i];
-
-				int requested_size = (panel_horizontal ? left_right_border_width(&taskbar->area)
-				                                       : top_bottom_border_width(&taskbar->area)) +
-									 2 * taskbar->area.paddingxlr;
-				int items = 0;
-				GList *l = taskbar->area.children;
-				if (taskbarname_enabled)
-					l = l->next;
-				for (; l; l = l->next) {
+				if (!taskbar->area.on_screen)
+					continue;
+				for (GList *l = taskbar->area.children; l; l = l->next) {
 					Area *child = (Area *)l->data;
 					if (!child->on_screen)
 						continue;
-					items++;
-					if (panel_horizontal) {
-						requested_size += child->width + taskbar->area.paddingy;
-					} else {
-						requested_size += child->height + taskbar->area.paddingx;
-					}
+					if (taskbarname_enabled && l == taskbar->area.children)
+						continue;
+					if (panel_horizontal)
+						taskbar->area.width += task_size;
+					else
+						taskbar->area.height += task_size;
 				}
-				if (panel_horizontal) {
-					requested_size -= taskbar->area.paddingy;
-				} else {
-					requested_size -= taskbar->area.paddingx;
-				}
-
-				if (panel_horizontal) {
-					taskbar->area.width = actual_name_size + items / (float)total_items * total_size;
-				} else {
-					taskbar->area.height = actual_name_size + items / (float)total_items * total_size;
-				}
-				taskbar->area.resize_needed = 1;
+			}
+		} else {
+			// No tasks => expand the first visible taskbar
+			for (int i = 0; i < panel->num_desktops; i++) {
+				Taskbar *taskbar = &panel->taskbar[i];
+				if (!taskbar->area.on_screen)
+					continue;
+				if (panel_horizontal)
+					taskbar->area.width += total_size;
+				else
+					taskbar->area.height += total_size;
+				break;
 			}
 		}
+		for (int i = 0; i < panel->num_desktops; i++) {
+			Taskbar *taskbar = &panel->taskbar[i];
+			taskbar->area.resize_needed =
+			    taskbar->area.old_width != taskbar->area.width || taskbar->area.old_height != taskbar->area.height;
+		}
 	}
-	if (panel->freespace.area.on_screen)
-		resize_freespace(&panel->freespace);
+	for (GList *l = panel->freespace_list; l; l = g_list_next(l))
+		resize_freespace(l->data);
 	return FALSE;
 }
 
@@ -490,7 +545,7 @@ void update_strut(Panel *p)
 	long struts[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 	if (panel_horizontal) {
 		int height = p->area.height + p->marginy;
-		if (panel_strut_policy == STRUT_MINIMUM || (panel_strut_policy == STRUT_FOLLOW_SIZE && p->is_hidden))
+		if (panel_strut_policy == STRUT_MINIMUM || (panel_strut_policy == STRUT_FOLLOW_SIZE && panel_autohide))
 			height = p->hidden_height;
 		if (panel_position & TOP) {
 			struts[2] = height + monitor.y;
@@ -505,7 +560,7 @@ void update_strut(Panel *p)
 		}
 	} else {
 		int width = p->area.width + p->marginx;
-		if (panel_strut_policy == STRUT_MINIMUM || (panel_strut_policy == STRUT_FOLLOW_SIZE && p->is_hidden))
+		if (panel_strut_policy == STRUT_MINIMUM || (panel_strut_policy == STRUT_FOLLOW_SIZE && panel_autohide))
 			width = p->hidden_width;
 		if (panel_position & LEFT) {
 			struts[0] = width + monitor.x;
@@ -546,6 +601,8 @@ void set_panel_items_order(Panel *p)
 	}
 
 	int i_execp = 0;
+	int i_separator = 0;
+	int i_freespace = 0;
 	for (int k = 0; k < strlen(panel_items_order); k++) {
 		if (panel_items_order[k] == 'L') {
 			p->area.children = g_list_append(p->area.children, &p->launcher);
@@ -565,8 +622,18 @@ void set_panel_items_order(Panel *p)
 		}
 		if (panel_items_order[k] == 'C')
 			p->area.children = g_list_append(p->area.children, &p->clock);
-		if (panel_items_order[k] == 'F')
-			p->area.children = g_list_append(p->area.children, &p->freespace);
+		if (panel_items_order[k] == 'F') {
+			GList *item = g_list_nth(p->freespace_list, i_freespace);
+			i_freespace++;
+			if (item)
+				p->area.children = g_list_append(p->area.children, (Area *)item->data);
+		}
+		if (panel_items_order[k] == ':') {
+			GList *item = g_list_nth(p->separator_list, i_separator);
+			i_separator++;
+			if (item)
+				p->area.children = g_list_append(p->area.children, (Area *)item->data);
+		}
 		if (panel_items_order[k] == 'E') {
 			GList *item = g_list_nth(p->execp_list, i_execp);
 			i_execp++;
@@ -588,13 +655,16 @@ void place_panel_all_desktops(Panel *p)
 	                PropModeReplace,
 	                (unsigned char *)&val,
 	                1);
+}
 
+void set_panel_layer(Panel *p, Layer layer)
+{
 	Atom state[4];
 	state[0] = server.atom._NET_WM_STATE_SKIP_PAGER;
 	state[1] = server.atom._NET_WM_STATE_SKIP_TASKBAR;
 	state[2] = server.atom._NET_WM_STATE_STICKY;
-	state[3] = panel_layer == BOTTOM_LAYER ? server.atom._NET_WM_STATE_BELOW : server.atom._NET_WM_STATE_ABOVE;
-	int num_atoms = panel_layer == NORMAL_LAYER ? 3 : 4;
+	state[3] = layer == BOTTOM_LAYER ? server.atom._NET_WM_STATE_BELOW : server.atom._NET_WM_STATE_ABOVE;
+	int num_atoms = layer == NORMAL_LAYER ? 3 : 4;
 	XChangeProperty(server.display,
 	                p->main_win,
 	                server.atom._NET_WM_STATE,
@@ -620,6 +690,90 @@ void replace_panel_all_desktops(Panel *p)
 	XSync(server.display, False);
 }
 
+void set_panel_window_geometry(Panel *panel)
+{
+	update_strut(panel);
+
+	// Fixed position and non-resizable window
+	// Allow panel move and resize when tint2 reload config file
+	int minwidth = panel_autohide ? panel->hidden_width : panel->area.width;
+	int minheight = panel_autohide ? panel->hidden_height : panel->area.height;
+	XSizeHints size_hints;
+	size_hints.flags = PPosition | PMinSize | PMaxSize;
+	size_hints.min_width = minwidth;
+	size_hints.max_width = panel->area.width;
+	size_hints.min_height = minheight;
+	size_hints.max_height = panel->area.height;
+	XSetWMNormalHints(server.display, panel->main_win, &size_hints);
+
+	if (!panel->is_hidden) {
+		if (panel_horizontal) {
+			if (panel_position & TOP)
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+				                  panel->posx,
+				                  panel->posy,
+				                  panel->area.width,
+				                  panel->area.height);
+			else
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+				                  panel->posx,
+				                  panel->posy,
+				                  panel->area.width,
+				                  panel->area.height);
+		} else {
+			if (panel_position & LEFT)
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+				                  panel->posx,
+				                  panel->posy,
+				                  panel->area.width,
+				                  panel->area.height);
+			else
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+				                  panel->posx,
+				                  panel->posy,
+				                  panel->area.width,
+				                  panel->area.height);
+		}
+	} else {
+		int diff = (panel_horizontal ? panel->area.height : panel->area.width) - panel_autohide_height;
+		if (panel_horizontal) {
+			if (panel_position & TOP)
+				XMoveResizeWindow(server.display,
+								  panel->main_win,
+				                  panel->posx,
+				                  panel->posy,
+				                  panel->hidden_width,
+				                  panel->hidden_height);
+			else
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+				                  panel->posx,
+				                  panel->posy + diff,
+				                  panel->hidden_width,
+				                  panel->hidden_height);
+		} else {
+			if (panel_position & LEFT)
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+								  panel->posx,
+								  panel->posy,
+				                  panel->hidden_width,
+				                  panel->hidden_height);
+			else
+				XMoveResizeWindow(server.display,
+				                  panel->main_win,
+				                  panel->posx + diff,
+				                  panel->posy,
+				                  panel->hidden_width,
+				                  panel->hidden_height);
+		}
+	}
+}
+
 void set_panel_properties(Panel *p)
 {
 	XStoreName(server.display, p->main_win, panel_window_name);
@@ -659,6 +813,7 @@ void set_panel_properties(Panel *p)
 	                1);
 
 	place_panel_all_desktops(p);
+	set_panel_layer(p, panel_layer);
 
 	XWMHints wmhints;
 	memset(&wmhints, 0, sizeof(wmhints));
@@ -696,26 +851,14 @@ void set_panel_properties(Panel *p)
 	                (unsigned char *)&version,
 	                1);
 
-	update_strut(p);
-
-	// Fixed position and non-resizable window
-	// Allow panel move and resize when tint2 reload config file
-	int minwidth = panel_autohide ? p->hidden_width : p->area.width;
-	int minheight = panel_autohide ? p->hidden_height : p->area.height;
-	XSizeHints size_hints;
-	size_hints.flags = PPosition | PMinSize | PMaxSize;
-	size_hints.min_width = minwidth;
-	size_hints.max_width = p->area.width;
-	size_hints.min_height = minheight;
-	size_hints.max_height = p->area.height;
-	XSetWMNormalHints(server.display, p->main_win, &size_hints);
-
 	// Set WM_CLASS
 	XClassHint *classhint = XAllocClassHint();
 	classhint->res_name = (char *)"tint2";
 	classhint->res_class = (char *)"Tint2";
 	XSetClassHint(server.display, p->main_win, classhint);
 	XFree(classhint);
+
+	set_panel_window_geometry(p);
 }
 
 void panel_clear_background(void *obj)
@@ -853,68 +996,22 @@ void autohide_show(void *p)
 	Panel *panel = (Panel *)p;
 	stop_autohide_timeout(panel);
 	panel->is_hidden = 0;
-
 	XMapSubwindows(server.display, panel->main_win); // systray windows
-	if (panel_horizontal) {
-		if (panel_position & TOP)
-			XResizeWindow(server.display, panel->main_win, panel->area.width, panel->area.height);
-		else
-			XMoveResizeWindow(server.display,
-			                  panel->main_win,
-			                  panel->posx,
-			                  panel->posy,
-			                  panel->area.width,
-			                  panel->area.height);
-	} else {
-		if (panel_position & LEFT)
-			XResizeWindow(server.display, panel->main_win, panel->area.width, panel->area.height);
-		else
-			XMoveResizeWindow(server.display,
-			                  panel->main_win,
-			                  panel->posx,
-			                  panel->posy,
-			                  panel->area.width,
-			                  panel->area.height);
-	}
-	if (panel_strut_policy == STRUT_FOLLOW_SIZE)
-		update_strut(panel);
+	set_panel_window_geometry(panel);
+	set_panel_layer(panel, TOP_LAYER);
 	refresh_systray = TRUE; // ugly hack, because we actually only need to call XSetBackgroundPixmap
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void autohide_hide(void *p)
 {
 	Panel *panel = (Panel *)p;
 	stop_autohide_timeout(panel);
+	set_panel_layer(panel, panel_layer);
 	panel->is_hidden = TRUE;
-	if (panel_strut_policy == STRUT_FOLLOW_SIZE)
-		update_strut(panel);
-
 	XUnmapSubwindows(server.display, panel->main_win); // systray windows
-	int diff = (panel_horizontal ? panel->area.height : panel->area.width) - panel_autohide_height;
-	// printf("autohide_hide : diff %d, w %d, h %d\n", diff, panel->hidden_width, panel->hidden_height);
-	if (panel_horizontal) {
-		if (panel_position & TOP)
-			XResizeWindow(server.display, panel->main_win, panel->hidden_width, panel->hidden_height);
-		else
-			XMoveResizeWindow(server.display,
-			                  panel->main_win,
-			                  panel->posx,
-			                  panel->posy + diff,
-			                  panel->hidden_width,
-			                  panel->hidden_height);
-	} else {
-		if (panel_position & LEFT)
-			XResizeWindow(server.display, panel->main_win, panel->hidden_width, panel->hidden_height);
-		else
-			XMoveResizeWindow(server.display,
-			                  panel->main_win,
-			                  panel->posx + diff,
-			                  panel->posy,
-			                  panel->hidden_width,
-			                  panel->hidden_height);
-	}
-	panel_refresh = TRUE;
+	set_panel_window_geometry(panel);
+	schedule_panel_redraw();
 }
 
 void autohide_trigger_show(Panel *p)
@@ -939,11 +1036,40 @@ void autohide_trigger_hide(Panel *p)
 	change_timeout(&p->autohide_timeout, panel_autohide_hide_timeout, 0, autohide_hide, p);
 }
 
+void shrink_panel(Panel *panel)
+{
+	if (!panel_shrink)
+		return;
+	int size = MIN(compute_desired_size(&panel->area), panel->max_size);
+	gboolean update = FALSE;
+	if (panel_horizontal) {
+		if (panel->area.width != size) {
+			panel->area.width = size;
+			update = TRUE;
+		}
+	} else {
+		if (panel->area.height != size) {
+			panel->area.height = size;
+			update = TRUE;
+		}
+	}
+	if (update) {
+		panel_compute_position(panel);
+		set_panel_window_geometry(panel);
+		set_panel_background(panel);
+		panel->area.resize_needed = TRUE;
+		systray.area.resize_needed = TRUE;
+		schedule_redraw(&systray.area);
+		refresh_systray = TRUE;
+	}
+}
+
 void render_panel(Panel *panel)
 {
 	relayout(&panel->area);
 	if (debug_geometry)
 		area_dump_geometry(&panel->area, 0);
+	update_dependent_gradients(&panel->area);
 	draw_tree(&panel->area);
 }
 
@@ -970,3 +1096,11 @@ void default_font_changed()
 	taskbarname_default_font_changed();
 	tooltip_default_font_changed();
 }
+
+void _schedule_panel_redraw(const char *file, const char *function, const int line)
+{
+	panel_refresh = TRUE;
+	if (debug_fps) {
+		fprintf(stderr, YELLOW "%s %s %d: triggering panel redraw" RESET "\n", file, function, line);
+	}
+}

src/panel.h

@@ -22,6 +22,7 @@
 #include "launcher.h"
 #include "freespace.h"
 #include "execplugin.h"
+#include "separator.h"
 
 #ifdef ENABLE_BATTERY
 #include "battery.h"
@@ -78,15 +79,19 @@ extern gboolean panel_autohide;
 extern int panel_autohide_show_timeout;
 extern int panel_autohide_hide_timeout;
 extern int panel_autohide_height; // for vertical panels this is of course the width
+extern gboolean panel_shrink;
 extern Strut panel_strut_policy;
 extern char *panel_items_order;
 extern int max_tick_urgent;
 extern GArray *backgrounds;
+extern GArray *gradients;
 extern Imlib_Image default_icon;
 #define DEFAULT_FONT "sans 10"
 extern char *default_font;
 extern XSettingsClient *xsettings_client;
 extern gboolean debug_geometry;
+extern gboolean debug_fps;
+extern gboolean debug_frames;
 
 typedef struct Panel {
 	Area area;
@@ -98,6 +103,7 @@ typedef struct Panel {
 	int posx, posy;
 	int marginx, marginy;
 	gboolean fractional_width, fractional_height;
+	int max_size;
 	int monitor;
 	int font_shadow;
 	gboolean mouse_effects;
@@ -126,7 +132,8 @@ typedef struct Panel {
 #endif
 
 	Launcher launcher;
-	FreeSpace freespace;
+	GList *freespace_list;
+	GList *separator_list;
 	GList *execp_list;
 
 	// Autohide
@@ -153,11 +160,16 @@ void init_panel();
 void init_panel_size_and_position(Panel *panel);
 gboolean resize_panel(void *obj);
 void render_panel(Panel *panel);
+void shrink_panel(Panel *panel);
+void _schedule_panel_redraw(const char *file, const char *function, const int line);
+#define schedule_panel_redraw() _schedule_panel_redraw(__FILE__, __FUNCTION__, __LINE__)
 
 void set_panel_items_order(Panel *p);
 void place_panel_all_desktops(Panel *p);
 void replace_panel_all_desktops(Panel *p);
 void set_panel_properties(Panel *p);
+void set_panel_window_geometry(Panel *panel);
+void set_panel_layer(Panel *p, Layer layer);
 
 // draw background panel
 void set_panel_background(Panel *p);

src/separator/separator.c

@@ -0,0 +1,231 @@
+// Tint2 : Separator plugin
+// Author: Oskari Rauta
+
+#include <string.h>
+#include <stdio.h>
+#include <cairo.h>
+#include <cairo-xlib.h>
+#include <pango/pangocairo.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "window.h"
+#include "server.h"
+#include "panel.h"
+#include "common.h"
+#include "separator.h"
+
+int separator_compute_desired_size(void *obj);
+
+Separator *create_separator()
+{
+	Separator *separator = (Separator *)calloc(1, sizeof(Separator));
+	separator->color.rgb[0] = 0.5;
+	separator->color.rgb[1] = 0.5;
+	separator->color.rgb[2] = 0.5;
+	separator->color.alpha = 0.9;
+	separator->style = SEPARATOR_DOTS;
+	separator->thickness = 3;
+	separator->area.paddingxlr = 1;
+	return separator;
+}
+
+void destroy_separator(void *obj)
+{
+	Separator *separator = (Separator *)obj;
+	remove_area(&separator->area);
+	free_area(&separator->area);
+	free_and_null(separator);
+}
+
+gpointer copy_separator(gconstpointer arg, gpointer data)
+{
+	Separator *old = (Separator *)arg;
+	Separator *copy = (Separator *)calloc(1, sizeof(Separator));
+	memcpy(copy, old, sizeof(Separator));
+	return copy;
+}
+
+void init_separator()
+{
+	GList *to_remove = panel_config.separator_list;
+	for (int k = 0; k < strlen(panel_items_order) && to_remove; k++) {
+		if (panel_items_order[k] == ':') {
+			to_remove = to_remove->next;
+		}
+	}
+
+	if (to_remove) {
+		if (to_remove == panel_config.separator_list) {
+			g_list_free_full(to_remove, destroy_separator);
+			panel_config.separator_list = NULL;
+		} else {
+			// Cut panel_config.separator_list
+			if (to_remove->prev)
+				to_remove->prev->next = NULL;
+			to_remove->prev = NULL;
+			// Remove all elements of to_remove and to_remove itself
+			g_list_free_full(to_remove, destroy_separator);
+		}
+	}
+}
+
+void init_separator_panel(void *p)
+{
+	Panel *panel = (Panel *)p;
+
+	// Make sure this is only done once if there are multiple items
+	if (panel->separator_list)
+		return;
+
+	// panel->separator_list is now a copy of the pointer panel_config.separator_list
+	// We make it a deep copy
+	panel->separator_list = g_list_copy_deep(panel_config.separator_list, copy_separator, NULL);
+
+	for (GList *l = panel->separator_list; l; l = l->next) {
+		Separator *separator = (Separator *)l->data;
+		if (!separator->area.bg)
+			separator->area.bg = &g_array_index(backgrounds, Background, 0);
+		separator->area.parent = p;
+		separator->area.panel = p;
+		snprintf(separator->area.name, sizeof(separator->area.name), "separator");
+		separator->area.size_mode = LAYOUT_FIXED;
+		separator->area.resize_needed = 1;
+		separator->area.on_screen = TRUE;
+		separator->area._resize = resize_separator;
+		separator->area._compute_desired_size = separator_compute_desired_size;
+		separator->area._draw_foreground = draw_separator;
+		instantiate_area_gradients(&separator->area);
+	}
+}
+
+void cleanup_separator()
+{
+	// Cleanup frontends
+	for (int i = 0; i < num_panels; i++) {
+		g_list_free_full(panels[i].separator_list, destroy_separator);
+		panels[i].separator_list = NULL;
+	}
+
+	// Cleanup backends
+	g_list_free_full(panel_config.separator_list, destroy_separator);
+	panel_config.separator_list = NULL;
+}
+
+int separator_compute_desired_size(void *obj)
+{
+	Separator *separator = (Separator *)obj;
+	if (!separator->area.on_screen)
+		return 0;
+
+	if (panel_horizontal)
+		return separator->thickness + 2 * separator->area.paddingxlr + left_right_border_width(&separator->area);
+	else
+		return separator->thickness + 2 * separator->area.paddingxlr + top_bottom_border_width(&separator->area);
+}
+
+gboolean resize_separator(void *obj)
+{
+	Separator *separator = (Separator *)obj;
+	if (!separator->area.on_screen)
+		return FALSE;
+
+	if (panel_horizontal) {
+		separator->area.width =
+		    separator->thickness + 2 * separator->area.paddingxlr + left_right_border_width(&separator->area);
+		separator->length =
+		    separator->area.height - 2 * separator->area.paddingy - top_bottom_border_width(&separator->area);
+	} else {
+		separator->area.height =
+		    separator->thickness + 2 * separator->area.paddingxlr + top_bottom_border_width(&separator->area);
+		separator->length =
+		    separator->area.width - 2 * separator->area.paddingy - left_right_border_width(&separator->area);
+	}
+
+	schedule_redraw(&separator->area);
+	schedule_panel_redraw();
+	return TRUE;
+}
+
+void draw_separator_line(void *obj, cairo_t *c);
+void draw_separator_dots(void *obj, cairo_t *c);
+
+void draw_separator(void *obj, cairo_t *c)
+{
+	Separator *separator = (Separator *)obj;
+
+	if (separator->style == SEPARATOR_EMPTY)
+		return;
+	else if (separator->style == SEPARATOR_LINE)
+		draw_separator_line(separator, c);
+	else if (separator->style == SEPARATOR_DOTS)
+		draw_separator_dots(separator, c);
+}
+
+void draw_separator_line(void *obj, cairo_t *c)
+{
+	Separator *separator = (Separator *)obj;
+
+	if (separator->thickness <= 0)
+		return;
+
+	cairo_set_source_rgba(c,
+	                      separator->color.rgb[0],
+	                      separator->color.rgb[1],
+	                      separator->color.rgb[2],
+	                      separator->color.alpha);
+	cairo_set_line_width(c, separator->thickness);
+	cairo_set_line_cap(c, CAIRO_LINE_CAP_ROUND);
+	if (panel_horizontal) {
+		cairo_move_to(c, separator->area.width / 2.0, separator->area.height / 2.0 - separator->length / 2.0);
+		cairo_line_to(c, separator->area.width / 2.0, separator->area.height / 2.0 + separator->length / 2.0);
+	} else {
+		cairo_move_to(c, separator->area.width / 2.0 - separator->length / 2.0, separator->area.height / 2.0);
+		cairo_line_to(c, separator->area.width / 2.0 + separator->length / 2.0, separator->area.height / 2.0);
+	}
+	cairo_stroke(c);
+}
+
+void draw_separator_dots(void *obj, cairo_t *c)
+{
+	const double PI = 3.14159265359;
+	Separator *separator = (Separator *)obj;
+	if (separator->thickness <= 0)
+		return;
+
+	cairo_set_source_rgba(c,
+	                      separator->color.rgb[0],
+	                      separator->color.rgb[1],
+	                      separator->color.rgb[2],
+	                      separator->color.alpha);
+	cairo_set_line_width(c, 0);
+
+	int num_circles = separator->length / (1.618 * separator->thickness - 1);
+	double spacing = (separator->length - num_circles * separator->thickness) / MAX(1.0, num_circles - 1.0);
+	if (spacing > separator->thickness)
+		num_circles++;
+	spacing = (separator->length - num_circles * separator->thickness) / MAX(1.0, num_circles - 1.0);
+	double offset = (panel_horizontal ? separator->area.height : separator->area.width) / 2.0 - separator->length / 2.0;
+	if (num_circles == 1)
+		offset += spacing / 2.0;
+	for (int i = 0; i < num_circles; i++) {
+		if (panel_horizontal) {
+			cairo_arc(c,
+					  separator->area.width / 2.0,
+					  offset + separator->thickness / 2.0,
+					  separator->thickness / 2.0,
+					  0,
+					  2 * PI);
+		} else {
+			cairo_arc(c,
+					  offset + separator->thickness / 2.0,
+					  separator->area.height / 2.0,
+					  separator->thickness / 2.0,
+					  0,
+					  2 * PI);
+		}
+		cairo_stroke_preserve(c);
+		cairo_fill(c);
+		offset += separator->thickness + spacing;
+	}
+}

src/separator/separator.h

@@ -0,0 +1,32 @@
+// Tint2 : Separator
+// Author: Oskari Rauta <oskari.rauta@gmail.com>
+
+#ifndef SEPARATOR_H
+#define SEPARATOR_H
+
+#include "common.h"
+#include "area.h"
+
+typedef enum SeparatorStyle {
+	SEPARATOR_EMPTY = 0,
+	SEPARATOR_LINE,
+	SEPARATOR_DOTS
+} SeparatorStyle;
+
+typedef struct Separator {
+	Area area;
+	SeparatorStyle style;
+	Color color;
+	int thickness;
+	int length;
+} Separator;
+
+Separator *create_separator();
+void destroy_separator(void *obj);
+void init_separator();
+void init_separator_panel(void *p);
+void cleanup_separator();
+gboolean resize_separator(void *obj);
+void draw_separator(void *obj, cairo_t *c);
+
+#endif

src/server.c

@@ -256,7 +256,7 @@ void get_root_pixmap()
 		gcv.ts_x_origin = 0;
 		gcv.ts_y_origin = 0;
 		gcv.fill_style = FillTiled;
-		uint mask = GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle | GCTile;
+		unsigned mask = GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle | GCTile;
 
 		gcv.tile = server.root_pmap;
 		XChangeGC(server.display, server.gc, mask, &gcv);
@@ -302,6 +302,11 @@ int monitor_includes_monitor(const void *monitor1, const void *monitor2)
 	}
 }
 
+void sort_monitors()
+{
+	qsort(server.monitors, server.num_monitors, sizeof(Monitor), compare_monitor_pos);
+}
+
 void get_monitors()
 {
 	if (XineramaIsActive(server.display)) {
@@ -312,38 +317,34 @@ void get_monitors()
 
 		if (res && res->ncrtc >= num_monitors) {
 			// use xrandr to identify monitors (does not work with proprietery nvidia drivers)
-
-			// Workaround for issue https://gitlab.com/o9000/tint2/issues/353
-			// on some recent configs, XRRGetScreenResourcesCurrent returns a fantom monitor at last position
-			{
-				int i = res->ncrtc - 1;
-				XRRCrtcInfo *crtc_info = XRRGetCrtcInfo(server.display, res, res->crtcs[i]);
-				if (!(crtc_info->x || crtc_info->y || crtc_info->width || crtc_info->height)) {
-					res->ncrtc -= 1;
-				}
-				XRRFreeCrtcInfo(crtc_info);
-			}
-
 			printf("xRandr: Found crtc's: %d\n", res->ncrtc);
 			server.monitors = calloc(res->ncrtc, sizeof(Monitor));
+			num_monitors = 0;
 			for (int i = 0; i < res->ncrtc; ++i) {
 				XRRCrtcInfo *crtc_info = XRRGetCrtcInfo(server.display, res, res->crtcs[i]);
-				server.monitors[i].x = crtc_info->x;
-				server.monitors[i].y = crtc_info->y;
-				server.monitors[i].width = crtc_info->width;
-				server.monitors[i].height = crtc_info->height;
-				server.monitors[i].names = calloc((crtc_info->noutput + 1), sizeof(gchar *));
+				// Ignore empty crtc
+				if (!crtc_info->width || !crtc_info->height) {
+					printf("xRandr: crtc %d seems disabled\n", i);
+					XRRFreeCrtcInfo(crtc_info);
+					continue;
+				}
+				int i_monitor = num_monitors;
+				num_monitors++;
+				server.monitors[i_monitor].x = crtc_info->x;
+				server.monitors[i_monitor].y = crtc_info->y;
+				server.monitors[i_monitor].width = crtc_info->width;
+				server.monitors[i_monitor].height = crtc_info->height;
+				server.monitors[i_monitor].names = calloc((crtc_info->noutput + 1), sizeof(gchar *));
 				for (int j = 0; j < crtc_info->noutput; ++j) {
 					XRROutputInfo *output_info = XRRGetOutputInfo(server.display, res, crtc_info->outputs[j]);
 					printf("xRandr: Linking output %s with crtc %d\n", output_info->name, i);
-					server.monitors[i].names[j] = g_strdup(output_info->name);
+					server.monitors[i_monitor].names[j] = g_strdup(output_info->name);
 					XRRFreeOutputInfo(output_info);
-					server.monitors[i].primary = crtc_info->outputs[j] == primary_output;
+					server.monitors[i_monitor].primary = crtc_info->outputs[j] == primary_output;
 				}
-				server.monitors[i].names[crtc_info->noutput] = NULL;
+				server.monitors[i_monitor].names[crtc_info->noutput] = NULL;
 				XRRFreeCrtcInfo(crtc_info);
 			}
-			num_monitors = res->ncrtc;
 		} else if (info && num_monitors > 0) {
 			server.monitors = calloc(num_monitors, sizeof(Monitor));
 			for (int i = 0; i < num_monitors; i++) {
@@ -351,7 +352,7 @@ void get_monitors()
 				server.monitors[i].y = info[i].y_org;
 				server.monitors[i].width = info[i].width;
 				server.monitors[i].height = info[i].height;
-				server.monitors[i].names = 0;
+				server.monitors[i].names = NULL;
 			}
 		}
 

src/server.h

@@ -159,6 +159,7 @@ void get_root_pixmap();
 
 // detect monitors and desktops
 void get_monitors();
+void sort_monitors();
 void print_monitors();
 void get_desktops();
 void server_get_number_of_desktops();

src/systray/systraybar.c

@@ -20,6 +20,7 @@
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/Xatom.h>
+#include <regex.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -54,6 +55,8 @@ int systray_monitor;
 int chrono;
 int systray_composited;
 int systray_profile;
+char *systray_hide_name_filter;
+regex_t *systray_hide_name_regex;
 // background pixmap if we render ourselves the icons
 static Pixmap render_background;
 
@@ -65,6 +68,7 @@ const int slow_resize_period = 5000;
 const int min_bad_resize_events = 3;
 const int max_bad_resize_events = 10;
 
+int systray_compute_desired_size(void *obj);
 void systray_dump_geometry(void *obj, int indent);
 
 void default_systray()
@@ -80,6 +84,8 @@ void default_systray()
 	systray.area.size_mode = LAYOUT_FIXED;
 	systray.area._resize = resize_systray;
 	systray_profile = getenv("SYSTRAY_PROFILING") != NULL;
+	systray_hide_name_filter = NULL;
+	systray_hide_name_regex = NULL;
 }
 
 void cleanup_systray()
@@ -94,6 +100,12 @@ void cleanup_systray()
 		XFreePixmap(server.display, render_background);
 		render_background = 0;
 	}
+	if (systray_hide_name_regex) {
+		regfree(systray_hide_name_regex);
+		free_and_null(systray_hide_name_regex);
+	}
+	if (systray_hide_name_filter)
+		free_and_null(systray_hide_name_filter);
 }
 
 void init_systray()
@@ -117,12 +129,57 @@ void init_systray_panel(void *p)
 	systray.area.parent = panel;
 	systray.area.panel = panel;
 	systray.area._dump_geometry = systray_dump_geometry;
+	systray.area._compute_desired_size = systray_compute_desired_size;
 	snprintf(systray.area.name, sizeof(systray.area.name), "Systray");
 	if (!systray.area.bg)
 		systray.area.bg = &g_array_index(backgrounds, Background, 0);
 	show(&systray.area);
 	schedule_redraw(&systray.area);
 	refresh_systray = TRUE;
+	instantiate_area_gradients(&systray.area);
+}
+
+void systray_compute_geometry(int *size)
+{
+	systray.icon_size = panel_horizontal ? systray.area.height : systray.area.width;
+	systray.icon_size -= MAX(left_right_border_width(&systray.area), top_bottom_border_width(&systray.area)) +
+						 2 * systray.area.paddingy;
+	if (systray_max_icon_size > 0)
+		systray.icon_size = MIN(systray.icon_size, systray_max_icon_size);
+
+	int count = 0;
+	for (GSList *l = systray.list_icons; l; l = l->next) {
+		count++;
+	}
+
+	if (panel_horizontal) {
+		int height = systray.area.height - top_bottom_border_width(&systray.area) - 2 * systray.area.paddingy;
+		// here icons_per_column always higher than 0
+		systray.icons_per_column = (height + systray.area.paddingx) / (systray.icon_size + systray.area.paddingx);
+		systray.margin =
+			height - (systray.icons_per_column - 1) * (systray.icon_size + systray.area.paddingx) - systray.icon_size;
+		systray.icons_per_row = count / systray.icons_per_column + (count % systray.icons_per_column != 0);
+		*size = left_right_border_width(&systray.area) + 2 * systray.area.paddingxlr +
+							 (systray.icon_size * systray.icons_per_row) +
+							 ((systray.icons_per_row - 1) * systray.area.paddingx);
+	} else {
+		int width = systray.area.width - left_right_border_width(&systray.area) - 2 * systray.area.paddingy;
+		// here icons_per_row always higher than 0
+		systray.icons_per_row = (width + systray.area.paddingx) / (systray.icon_size + systray.area.paddingx);
+		systray.margin =
+			width - (systray.icons_per_row - 1) * (systray.icon_size + systray.area.paddingx) - systray.icon_size;
+		systray.icons_per_column = count / systray.icons_per_row + (count % systray.icons_per_row != 0);
+		*size = top_bottom_border_width(&systray.area) + (2 * systray.area.paddingxlr) +
+							  (systray.icon_size * systray.icons_per_column) +
+							  ((systray.icons_per_column - 1) * systray.area.paddingx);
+	}
+}
+
+int systray_compute_desired_size(void *obj)
+{
+	int size;
+	systray_compute_geometry(&size);
+	return size;
 }
 
 gboolean resize_systray(void *obj)
@@ -130,14 +187,8 @@ gboolean resize_systray(void *obj)
 	if (systray_profile)
 		fprintf(stderr, "[%f] %s:%d\n", profiling_get_time(), __FUNCTION__, __LINE__);
 
-	if (panel_horizontal)
-		systray.icon_size = systray.area.height;
-	else
-		systray.icon_size = systray.area.width;
-	systray.icon_size -= MAX(left_right_border_width(&systray.area), top_bottom_border_width(&systray.area)) +
-						 2 * systray.area.paddingy;
-	if (systray_max_icon_size > 0)
-		systray.icon_size = MIN(systray.icon_size, systray_max_icon_size);
+	int size;
+	systray_compute_geometry(&size);
 
 	if (systray.icon_size > 0) {
 		long icon_size = systray.icon_size;
@@ -151,40 +202,27 @@ gboolean resize_systray(void *obj)
 		                1);
 	}
 
-	int count = 0;
-	for (GSList *l = systray.list_icons; l; l = l->next) {
-		count++;
-	}
-	if (systray_profile)
-		fprintf(stderr, BLUE "%s:%d number of icons = %d" RESET "\n", __FUNCTION__, __LINE__, count);
-
-	if (panel_horizontal) {
-		int height = systray.area.height - top_bottom_border_width(&systray.area) - 2 * systray.area.paddingy;
-		// here icons_per_column always higher than 0
-		systray.icons_per_column = (height + systray.area.paddingx) / (systray.icon_size + systray.area.paddingx);
-		systray.margin =
-		    height - (systray.icons_per_column - 1) * (systray.icon_size + systray.area.paddingx) - systray.icon_size;
-		systray.icons_per_row = count / systray.icons_per_column + (count % systray.icons_per_column != 0);
-		systray.area.width = left_right_border_width(&systray.area) + 2 * systray.area.paddingxlr +
-		                     (systray.icon_size * systray.icons_per_row) +
-		                     ((systray.icons_per_row - 1) * systray.area.paddingx);
-	} else {
-		int width = systray.area.width - left_right_border_width(&systray.area) - 2 * systray.area.paddingy;
-		// here icons_per_row always higher than 0
-		systray.icons_per_row = (width + systray.area.paddingx) / (systray.icon_size + systray.area.paddingx);
-		systray.margin =
-		    width - (systray.icons_per_row - 1) * (systray.icon_size + systray.area.paddingx) - systray.icon_size;
-		systray.icons_per_column = count / systray.icons_per_row + (count % systray.icons_per_row != 0);
-		systray.area.height = top_bottom_border_width(&systray.area) + (2 * systray.area.paddingxlr) +
-		                      (systray.icon_size * systray.icons_per_column) +
-		                      ((systray.icons_per_column - 1) * systray.area.paddingx);
-	}
-
+	gboolean result = refresh_systray;
 	if (net_sel_win == None) {
 		start_net();
+		result = TRUE;
 	}
 
-	return TRUE;
+	if (panel_horizontal) {
+		if (systray.area.width != size) {
+			systray.area.width = size;
+			result = TRUE;
+		}
+	} else {
+		if (systray.area.height != size) {
+			systray.area.height = size;
+			result = TRUE;
+		}
+	}
+
+	on_change_systray(&systray.area);
+
+	return result;
 }
 
 void draw_systray(void *obj, cairo_t *c)
@@ -546,6 +584,26 @@ void print_icons()
 	}
 }
 
+gboolean reject_icon(Window win)
+{
+	if (systray_hide_name_filter && strlen(systray_hide_name_filter)) {
+		if (!systray_hide_name_regex) {
+			systray_hide_name_regex = (regex_t *) calloc(1, sizeof(*systray_hide_name_regex));
+			if (regcomp(systray_hide_name_regex, systray_hide_name_filter, 0) != 0) {
+				fprintf(stderr, RED "Could not compile regex %s" RESET "\n", systray_hide_name_filter);
+				free_and_null(systray_hide_name_regex);
+				return FALSE;
+			}
+		}
+		char *name = get_window_name(win);
+		if (regexec(systray_hide_name_regex, name, 0, NULL, 0) == 0) {
+			fprintf(stderr, GREEN "Filtering out systray icon '%s'" RESET "\n", name);
+			return TRUE;
+		}
+	}
+	return FALSE;
+}
+
 gboolean add_icon(Window win)
 {
 	// Avoid duplicates
@@ -556,6 +614,10 @@ gboolean add_icon(Window win)
 		}
 	}
 
+	// Filter out systray_hide_by_icon_name
+	if (reject_icon(win))
+		return FALSE;
+	
 	// Dangerous actions begin
 	XSync(server.display, False);
 	error = FALSE;
@@ -674,8 +736,7 @@ gboolean add_icon(Window win)
 	traywin->chrono = chrono;
 	chrono++;
 
-	if (!systray.area.on_screen)
-		show(&systray.area);
+	show(&systray.area);
 
 	if (systray.sort == SYSTRAY_SORT_RIGHT2LEFT)
 		systray.list_icons = g_slist_prepend(systray.list_icons, traywin);
@@ -1080,7 +1141,7 @@ void systray_reconfigure_event(TrayWindow *traywin, XEvent *e)
 		        profiling_get_time(),
 		        __FUNCTION__,
 		        __LINE__);
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 	refresh_systray = TRUE;
 }
 
@@ -1159,7 +1220,7 @@ void systray_resize_request_event(TrayWindow *traywin, XEvent *e)
 		        profiling_get_time(),
 		        __FUNCTION__,
 		        __LINE__);
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 	refresh_systray = TRUE;
 }
 
@@ -1367,7 +1428,7 @@ void systray_render_icon_composited(void *t)
 	if (error)
 		goto on_error;
 
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 
 	if (systray_profile)
 		fprintf(stderr,
@@ -1406,29 +1467,31 @@ on_systray_error:
 void systray_render_icon(void *t)
 {
 	TrayWindow *traywin = t;
-	if (systray_profile)
-		fprintf(stderr,
-		        "[%f] %s:%d win = %lu (%s)\n",
-		        profiling_get_time(),
-		        __FUNCTION__,
-		        __LINE__,
-		        traywin->win,
-		        traywin->name);
 	if (!traywin->reparented || !traywin->embedded) {
-		if (systray_profile)
-			fprintf(stderr,
-			        YELLOW "[%f] %s:%d win = %lu (%s) delaying rendering" RESET "\n",
-			        profiling_get_time(),
-			        __FUNCTION__,
-			        __LINE__,
-			        traywin->win,
-			        traywin->name);
+//		if (systray_profile)
+//			fprintf(stderr,
+//			        YELLOW "[%f] %s:%d win = %lu (%s) delaying rendering" RESET "\n",
+//			        profiling_get_time(),
+//			        __FUNCTION__,
+//			        __LINE__,
+//			        traywin->win,
+//			        traywin->name);
 		stop_timeout(traywin->render_timeout);
 		traywin->render_timeout =
 		    add_timeout(min_refresh_period, 0, systray_render_icon, traywin, &traywin->render_timeout);
 		return;
 	}
 
+	if (systray_profile)
+		fprintf(stderr,
+				"[%f] %s:%d win = %lu (%s)\n",
+				profiling_get_time(),
+				__FUNCTION__,
+				__LINE__,
+				traywin->win,
+				traywin->name);
+
+
 	if (systray_composited) {
 		XSync(server.display, False);
 		error = FALSE;
@@ -1500,9 +1563,9 @@ void refresh_systray_icons()
 	}
 }
 
-gboolean systray_on_monitor(int i_monitor, int num_panels)
+gboolean systray_on_monitor(int i_monitor, int n_panels)
 {
-	return (i_monitor == systray_monitor) || (i_monitor == 0 && (systray_monitor >= num_panels || systray_monitor < 0));
+	return (i_monitor == systray_monitor) || (i_monitor == 0 && (systray_monitor >= n_panels || systray_monitor < 0));
 }
 
 TrayWindow *systray_find_icon(Window win)

src/systray/systraybar.h

@@ -75,6 +75,7 @@ extern gboolean systray_enabled;
 extern int systray_max_icon_size;
 extern int systray_monitor;
 extern gboolean systray_profile;
+extern char *systray_hide_name_filter;
 
 // default global data
 void default_systray();

src/taskbar/task.c

@@ -39,6 +39,7 @@ timeout *urgent_timeout;
 GSList *urgent_list;
 
 void task_dump_geometry(void *obj, int indent);
+int task_compute_desired_size(void *obj);
 
 char *task_get_tooltip(void *obj)
 {
@@ -108,6 +109,7 @@ Task *add_task(Window win)
 		task_instance->area.has_mouse_press_effect = panel_config.mouse_effects;
 		task_instance->area._dump_geometry = task_dump_geometry;
 		task_instance->area._is_under_mouse = full_width_area_is_under_mouse;
+		task_instance->area._compute_desired_size = task_compute_desired_size;
 		task_instance->win = task_template.win;
 		task_instance->desktop = task_template.desktop;
 		task_instance->win_x = task_template.win_x;
@@ -150,6 +152,9 @@ Task *add_task(Window win)
 		add_urgent((Task *)g_ptr_array_index(task_buttons, 0));
 	}
 
+	if (hide_taskbar_if_empty)
+		update_all_taskbars_visibility();
+
 	return (Task *)g_ptr_array_index(task_buttons, 0);
 }
 
@@ -204,6 +209,8 @@ void remove_task(Task *task)
 		free(task2);
 	}
 	g_hash_table_remove(win_to_task, &win);
+	if (hide_taskbar_if_empty)
+		update_all_taskbars_visibility();
 }
 
 gboolean task_update_title(Task *task)
@@ -294,8 +301,8 @@ void task_update_icon(Task *task)
 				// get width, height and depth for the pixmap
 				Window root;
 				int icon_x, icon_y;
-				uint border_width, bpp;
-				uint w, h;
+				unsigned border_width, bpp;
+				unsigned w, h;
 
 				XGetGeometry(server.display, hints->icon_pixmap, &root, &icon_x, &icon_y, &w, &h, &border_width, &bpp);
 				imlib_context_set_drawable(hints->icon_pixmap);
@@ -465,6 +472,14 @@ void task_dump_geometry(void *obj, int indent)
 			panel->g_task.icon_size1);
 }
 
+int task_compute_desired_size(void *obj)
+{
+	Task *task = (Task *)obj;
+	Panel *panel = (Panel *)task->area.panel;
+	int size = panel_horizontal ? panel->g_task.maximum_width : panel->g_task.maximum_height;
+	return size;
+}
+
 void on_change_task(void *obj)
 {
 	Task *task = (Task *)obj;
@@ -595,6 +610,8 @@ void set_task_state(Task *task, TaskState state)
 				Task *task1 = g_ptr_array_index(task_buttons, i);
 				task1->current_state = state;
 				task1->area.bg = panels[0].g_task.background[state];
+				free_area_gradient_instances(&task1->area);
+				instantiate_area_gradients(&task1->area);
 				schedule_redraw(&task1->area);
 				if (state == TASK_ACTIVE && g_slist_find(urgent_list, task1))
 					del_urgent(task1);
@@ -623,7 +640,7 @@ void set_task_state(Task *task, TaskState state)
 					p->area.resize_needed = TRUE;
 				}
 			}
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		}
 	}
 }
@@ -641,7 +658,7 @@ void blink_urgent(void *arg)
 		}
 		urgent_task = urgent_task->next;
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void add_urgent(Task *task)

src/taskbar/task.h

@@ -36,6 +36,7 @@ typedef struct GlobalTask {
 	int brightness[TASK_STATE_COUNT];
 	int config_asb_mask;
 	Background *background[TASK_STATE_COUNT];
+	GList *gradient[TASK_STATE_COUNT];
 	int config_background_mask;
 	// starting position for text ~ task_padding + task_border + icon_size
 	double text_posx, text_height;

src/taskbar/taskbar.c

@@ -41,11 +41,13 @@ gboolean taskbar_enabled;
 gboolean taskbar_distribute_size;
 gboolean hide_inactive_tasks;
 gboolean hide_task_diff_monitor;
+gboolean hide_taskbar_if_empty;
 gboolean always_show_all_desktop_tasks;
 TaskbarSortMethod taskbar_sort_method;
 Alignment taskbar_alignment;
 
 void taskbar_init_fonts();
+int taskbar_compute_desired_size(void *obj);
 
 // Removes the task with &win = key. The other args are ignored.
 void taskbar_remove_task(Window *win);
@@ -74,6 +76,7 @@ void default_taskbar()
 	taskbar_distribute_size = FALSE;
 	hide_inactive_tasks = FALSE;
 	hide_task_diff_monitor = FALSE;
+	hide_taskbar_if_empty = FALSE;
 	always_show_all_desktop_tasks = FALSE;
 	taskbar_sort_method = TASKBAR_NOSORT;
 	taskbar_alignment = ALIGN_LEFT;
@@ -82,7 +85,6 @@ void default_taskbar()
 
 void cleanup_taskbar()
 {
-	cleanup_taskbarname();
 	if (win_to_task) {
 		while (g_hash_table_size(win_to_task)) {
 			GHashTableIter iter;
@@ -96,6 +98,7 @@ void cleanup_taskbar()
 		g_hash_table_destroy(win_to_task);
 		win_to_task = NULL;
 	}
+	cleanup_taskbarname();
 	for (int i = 0; i < num_panels; i++) {
 		Panel *panel = &panels[i];
 		for (int j = 0; j < panel->num_desktops; j++) {
@@ -114,6 +117,15 @@ void cleanup_taskbar()
 	urgent_list = NULL;
 
 	stop_timeout(urgent_timeout);
+
+	for (int state = 0; state < TASK_STATE_COUNT; state++) {
+		g_list_free(panel_config.g_task.gradient[state]);
+	}
+
+	for (int state = 0; state < TASKBAR_STATE_COUNT; state++) {
+		g_list_free(panel_config.g_taskbar.gradient[state]);
+		g_list_free(panel_config.g_taskbar.gradient_name[state]);
+	}
 }
 
 void init_taskbar()
@@ -163,13 +175,14 @@ void init_taskbar_panel(void *p)
 	panel->g_taskbar.area.size_mode = LAYOUT_DYNAMIC;
 	panel->g_taskbar.area.alignment = taskbar_alignment;
 	panel->g_taskbar.area._resize = resize_taskbar;
+	panel->g_taskbar.area._compute_desired_size = taskbar_compute_desired_size;
 	panel->g_taskbar.area._is_under_mouse = full_width_area_is_under_mouse;
 	panel->g_taskbar.area.resize_needed = 1;
 	panel->g_taskbar.area.on_screen = TRUE;
 	if (panel_horizontal) {
 		panel->g_taskbar.area.posy = top_border_width(&panel->area) + panel->area.paddingy;
 		panel->g_taskbar.area.height =
-			panel->area.height - top_bottom_border_width(&panel->area) - 2 * panel->area.paddingy;
+		    panel->area.height - top_bottom_border_width(&panel->area) - 2 * panel->area.paddingy;
 		panel->g_taskbar.area_name.posy = panel->g_taskbar.area.posy;
 		panel->g_taskbar.area_name.height = panel->g_taskbar.area.height;
 	} else {
@@ -302,10 +315,16 @@ void init_taskbar_panel(void *p)
 		taskbar = &panel->taskbar[j];
 		memcpy(&taskbar->area, &panel->g_taskbar.area, sizeof(Area));
 		taskbar->desktop = j;
-		if (j == server.desktop)
+		if (j == server.desktop) {
 			taskbar->area.bg = panel->g_taskbar.background[TASKBAR_ACTIVE];
-		else
+			free_area_gradient_instances(&taskbar->area);
+			instantiate_area_gradients(&taskbar->area);
+		} else {
 			taskbar->area.bg = panel->g_taskbar.background[TASKBAR_NORMAL];
+			free_area_gradient_instances(&taskbar->area);
+			instantiate_area_gradients(&taskbar->area);
+		}
+
 	}
 	init_taskbarname_panel(panel);
 }
@@ -347,7 +366,7 @@ void taskbar_default_font_changed()
 			}
 		}
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void taskbar_remove_task(Window *win)
@@ -400,6 +419,22 @@ void taskbar_refresh_tasklist()
 	XFree(win);
 }
 
+int taskbar_compute_desired_size(void *obj)
+{
+	Taskbar *taskbar = (Taskbar *)obj;
+	Panel *panel = (Panel *)taskbar->area.panel;
+
+	if (taskbar_mode == MULTI_DESKTOP && !taskbar_distribute_size) {
+		int result = 0;
+		for (int i = 0; i < panel->num_desktops; i++) {
+			 Taskbar *t = &panel->taskbar[i];
+			 result = MAX(result, container_compute_desired_size(&t->area));
+		}
+		return result;
+	}
+	return container_compute_desired_size(&taskbar->area);
+}
+
 gboolean resize_taskbar(void *obj)
 {
 	Taskbar *taskbar = (Taskbar *)obj;
@@ -430,24 +465,37 @@ gboolean resize_taskbar(void *obj)
 	return FALSE;
 }
 
-void update_one_taskbar_visibility(Taskbar *taskbar)
+gboolean taskbar_is_empty(Taskbar *taskbar)
 {
-	//TODO handle hidden name
-	gboolean taskbar_non_empty = g_list_length(taskbar->area.children) > 1;
+	GList *l = taskbar->area.children;
+	if (taskbarname_enabled)
+		l = l->next;
+	for (; l != NULL; l = l->next) {
+		if (((Task *)l->data)->area.on_screen) {
+			return FALSE;
+		}
+	}
+	return TRUE;
+}
 
+void update_taskbar_visibility(Taskbar *taskbar)
+{
 	if (taskbar->desktop == server.desktop) {
 		// Taskbar for current desktop is always shown
-		taskbar->area.on_screen = TRUE;
+		show(&taskbar->area);
+	} else if (taskbar_mode == MULTI_DESKTOP) {
+		if (hide_taskbar_if_empty) {
+			if (taskbar_is_empty(taskbar)) {
+				hide(&taskbar->area);
+			} else {
+				show(&taskbar->area);
+			}
+		} else {
+			show(&taskbar->area);
+		}
+	} else {
+		hide(&taskbar->area);
 	}
-	else if (taskbar_mode == MULTI_DESKTOP && taskbar_non_empty) {
-		// MULTI_DESKTOP : show non-empty taskbars
-		taskbar->area.on_screen = TRUE;
-	}
-	else {
-		taskbar->area.on_screen = FALSE;
-	}
-
-	panel_refresh = TRUE;
 }
 
 void update_all_taskbars_visibility()
@@ -455,20 +503,24 @@ void update_all_taskbars_visibility()
 	for (int i = 0; i < num_panels; i++) {
 		Panel *panel = &panels[i];
 		for (int j = 0; j < panel->num_desktops; j++) {
-			update_one_taskbar_visibility(&panel->taskbar[j]);
+			update_taskbar_visibility(&panel->taskbar[j]);
 		}
 	}
-	panel_refresh = TRUE;
 }
 
 void set_taskbar_state(Taskbar *taskbar, TaskbarState state)
 {
 	taskbar->area.bg = panels[0].g_taskbar.background[state];
+	free_area_gradient_instances(&taskbar->area);
+	instantiate_area_gradients(&taskbar->area);
+
 	if (taskbarname_enabled) {
 		taskbar->bar_name.area.bg = panels[0].g_taskbar.background_name[state];
+		free_area_gradient_instances(&taskbar->bar_name.area);
+		instantiate_area_gradients(&taskbar->bar_name.area);
 	}
 
-	update_one_taskbar_visibility(taskbar);
+	update_taskbar_visibility(taskbar);
 
 	if (taskbar->area.on_screen) {
 		schedule_redraw(&taskbar->area);
@@ -484,7 +536,7 @@ void set_taskbar_state(Taskbar *taskbar, TaskbarState state)
 				schedule_redraw((Area *)l->data);
 		}
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 #define NONTRIVIAL 2
@@ -597,7 +649,7 @@ void sort_tasks(Taskbar *taskbar)
 
 	taskbar->area.children = g_list_sort_with_data(taskbar->area.children, (GCompareDataFunc)compare_tasks, taskbar);
 	taskbar->area.resize_needed = TRUE;
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 	((Panel *)taskbar->area.panel)->area.resize_needed = TRUE;
 }
 

src/taskbar/taskbar.h

@@ -43,12 +43,15 @@ typedef struct GlobalTaskbar {
 	Area area_name;
 	Background *background[TASKBAR_STATE_COUNT];
 	Background *background_name[TASKBAR_STATE_COUNT];
+	GList *gradient[TASKBAR_STATE_COUNT];
+	GList *gradient_name[TASKBAR_STATE_COUNT];
 } GlobalTaskbar;
 
 extern gboolean taskbar_enabled;
 extern gboolean taskbar_distribute_size;
 extern gboolean hide_inactive_tasks;
 extern gboolean hide_task_diff_monitor;
+extern gboolean hide_taskbar_if_empty;
 extern gboolean always_show_all_desktop_tasks;
 extern TaskbarSortMethod taskbar_sort_method;
 extern Alignment taskbar_alignment;

src/taskbar/taskbarname.c

@@ -37,6 +37,7 @@ Color taskbarname_font;
 Color taskbarname_active_font;
 
 void taskbarname_init_fonts();
+int taskbarname_compute_desired_size(void *obj);
 
 void default_taskbarname()
 {
@@ -60,10 +61,12 @@ void init_taskbarname_panel(void *p)
 		taskbar->bar_name.area.parent = taskbar;
 		taskbar->bar_name.area.has_mouse_over_effect = panel_config.mouse_effects;
 		taskbar->bar_name.area.has_mouse_press_effect = panel_config.mouse_effects;
-		if (j == server.desktop)
+		taskbar->bar_name.area._compute_desired_size = taskbarname_compute_desired_size;
+		if (j == server.desktop) {
 			taskbar->bar_name.area.bg = panel->g_taskbar.background_name[TASKBAR_ACTIVE];
-		else
+		} else {
 			taskbar->bar_name.area.bg = panel->g_taskbar.background_name[TASKBAR_NORMAL];
+		}
 
 		// use desktop number if name is missing
 		if (l) {
@@ -75,6 +78,7 @@ void init_taskbarname_panel(void *p)
 
 		// append the name at the beginning of taskbar
 		taskbar->area.children = g_list_append(taskbar->area.children, &taskbar->bar_name);
+		instantiate_area_gradients(&taskbar->bar_name.area);
 	}
 
 	for (l = list; l; l = l->next)
@@ -109,7 +113,7 @@ void taskbarname_default_font_changed()
 			schedule_redraw(&taskbar->bar_name.area);
 		}
 	}
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void cleanup_taskbarname()
@@ -126,14 +130,11 @@ void cleanup_taskbarname()
 	}
 }
 
-gboolean resize_taskbarname(void *obj)
+int taskbarname_compute_desired_size(void *obj)
 {
-	TaskbarName *taskbar_name = obj;
-	Panel *panel = taskbar_name->area.panel;
+	TaskbarName *taskbar_name = (TaskbarName *)obj;
+	Panel *panel = (Panel *)taskbar_name->area.panel;
 	int name_height, name_width, name_height_ink;
-	gboolean result = FALSE;
-
-	schedule_redraw(&taskbar_name->area);
 	get_text_size2(panel_config.taskbarname_font_desc,
 				   &name_height_ink,
 				   &name_height,
@@ -147,14 +148,41 @@ gboolean resize_taskbarname(void *obj)
 				   FALSE);
 
 	if (panel_horizontal) {
-		int new_size = name_width + 2 * taskbar_name->area.paddingxlr + left_right_border_width(&taskbar_name->area);
+		return name_width + 2 * taskbar_name->area.paddingxlr + left_right_border_width(&taskbar_name->area);
+	} else {
+		return name_height + 2 * taskbar_name->area.paddingxlr + top_bottom_border_width(&taskbar_name->area);
+	}
+}
+
+gboolean resize_taskbarname(void *obj)
+{
+	TaskbarName *taskbar_name = (TaskbarName *)obj;
+	Panel *panel = (Panel *)taskbar_name->area.panel;
+
+	schedule_redraw(&taskbar_name->area);
+
+	int name_height, name_width, name_height_ink;
+	get_text_size2(panel_config.taskbarname_font_desc,
+				   &name_height_ink,
+				   &name_height,
+				   &name_width,
+				   panel->area.height,
+				   panel->area.width,
+				   taskbar_name->name,
+				   strlen(taskbar_name->name),
+				   PANGO_WRAP_WORD_CHAR,
+				   PANGO_ELLIPSIZE_NONE,
+				   FALSE);
+
+	gboolean result = FALSE;
+	int new_size = taskbarname_compute_desired_size(obj);
+	if (panel_horizontal) {
 		if (new_size != taskbar_name->area.width) {
 			taskbar_name->area.width = new_size;
 			taskbar_name->posy = (taskbar_name->area.height - name_height) / 2;
 			result = TRUE;
 		}
 	} else {
-		int new_size = name_height + 2 * taskbar_name->area.paddingxlr + top_bottom_border_width(&taskbar_name->area);
 		if (new_size != taskbar_name->area.height) {
 			taskbar_name->area.height = new_size;
 			taskbar_name->posy = (taskbar_name->area.height - name_height) / 2;

src/tint.c

@@ -79,6 +79,86 @@ XSettingsClient *xsettings_client = NULL;
 timeout *detect_compositor_timer = NULL;
 int detect_compositor_timer_counter = 0;
 
+gboolean debug_fps = FALSE;
+gboolean debug_frames = FALSE;
+float *fps_distribution = NULL;
+int frame = 0;
+
+void create_fps_distribution()
+{
+	// measure FPS with resolution:
+	// 0-59: 1		   (60 samples)
+	// 60-199: 10      (14)
+	// 200-1,999: 25   (72)
+	// 1k-19,999: 1000 (19)
+	// 20x+: inf       (1)
+	// => 166 samples
+	if (fps_distribution)
+		return;
+	fps_distribution = calloc(170, sizeof(float));
+}
+
+void cleanup_fps_distribution()
+{
+	free(fps_distribution);
+	fps_distribution = NULL;
+}
+
+void sample_fps(double fps)
+{
+	int fps_rounded = (int)(fps + 0.5);
+	int i = 1;
+	if (fps_rounded < 60) {
+		i += fps_rounded;
+	} else {
+		i += 60;
+		if (fps_rounded < 200) {
+			i += (fps_rounded - 60) / 10;
+		} else {
+			i += 14;
+			if (fps_rounded < 2000) {
+				i += (fps_rounded - 200) / 25;
+			} else {
+				i += 72;
+				if (fps_rounded < 20000) {
+					i += (fps_rounded - 2000) / 1000;
+				} else {
+					i += 20;
+				}
+			}
+		}
+	}
+	// fprintf(stderr, "fps = %.0f => i = %d\n", fps, i);
+	fps_distribution[i] += 1.;
+	fps_distribution[0] += 1.;
+}
+
+void fps_compute_stats(double *low, double *median, double *high, double *samples)
+{
+	*median = *low = *high = *samples = -1;
+	if (!fps_distribution || fps_distribution[0] < 1)
+		return;
+	float total = fps_distribution[0];
+	*samples = (double) fps_distribution[0];
+	float cum_low = 0.05f * total;
+	float cum_median = 0.5f * total;
+	float cum_high = 0.95f * total;
+	float cum = 0;
+	for (int i = 1; i <= 166; i++) {
+		double value =
+			(i < 60) ? i : (i < 74) ? (60 + (i - 60) * 10) : (i < 146) ? (200 + (i - 74) * 25)
+																	  : (i < 165) ? (2000 + (i - 146) * 1000) : 20000;
+		// fprintf(stderr, "%6.0f (i = %3d) : %.0f | ", value, i, (double)fps_distribution[i]);
+		cum += fps_distribution[i];
+		if (*low < 0 && cum >= cum_low)
+			*low = value;
+		if (*median < 0 && cum >= cum_median)
+			*median = value;
+		if (*high < 0 && cum >= cum_high)
+			*high = value;
+	}
+}
+
 void detect_compositor(void *arg)
 {
 	if (server.composite_manager) {
@@ -189,10 +269,6 @@ const char *signal_name(int sig)
 		return "SIGVTALRM: Virtual alarm clock (4.2 BSD).";
 	case SIGPROF:
 		return "SIGPROF: Profiling alarm clock (4.2 BSD).";
-	case SIGWINCH:
-		return "SIGWINCH: Window size change (4.3 BSD, Sun).";
-	case SIGIO:
-		return "SIGIO: Pollable event occurred (System V) / I/O now possible (4.2 BSD).";
 	// case SIGPWR: return "SIGPWR: Power failure restart (System V).";
 	case SIGSYS:
 		return "SIGSYS: Bad system call.";
@@ -344,7 +420,20 @@ void init(int argc, char *argv[])
 			}
 		} else if (i + 1 == argc) {
 			config_path = strdup(argv[i]);
-		} else {
+		}
+#ifdef ENABLE_BATTERY
+		  else if (strcmp(argv[i], "--battery-sys-prefix") == 0) {
+			if (i + 1 < argc) {
+				i++;
+				battery_sys_prefix = strdup(argv[i]);
+			} else {
+				error = 1;
+			}
+		}
+#endif
+
+
+		else {
 			error = 1;
 		}
 		if (error) {
@@ -375,6 +464,11 @@ void init(int argc, char *argv[])
 #endif
 
 	debug_geometry = getenv("DEBUG_GEOMETRY") != NULL;
+	debug_gradients = getenv("DEBUG_GRADIENTS") != NULL;
+	debug_fps = getenv("DEBUG_FPS") != NULL;
+	debug_frames = getenv("DEBUG_FRAMES") != NULL;
+	if (debug_fps)
+		create_fps_distribution();
 }
 
 static int sigchild_pipe_valid = FALSE;
@@ -465,6 +559,9 @@ void init_X11_pre_config()
 
 void init_X11_post_config()
 {
+	if (primary_monitor_first)
+		sort_monitors();
+
 	server_init_visual();
 
 	gboolean need_sigchld = FALSE;
@@ -508,8 +605,8 @@ void init_X11_post_config()
 	}
 	if (!default_icon) {
 		fprintf(stderr,
-				RED "Could not load default_icon.png. Please check that tint2 has been installed correctly!" RESET
-					"\n");
+		        RED "Could not load default_icon.png. Please check that tint2 has been installed correctly!" RESET
+		            "\n");
 	}
 }
 
@@ -549,21 +646,11 @@ void cleanup()
 	}
 
 	uevent_cleanup();
+	cleanup_fps_distribution();
 }
 
-void get_snapshot(const char *path)
+void dump_panel_to_file(const Panel *panel, const char *path)
 {
-	Panel *panel = &panels[0];
-
-	if (panel->area.width > server.monitors[0].width)
-		panel->area.width = server.monitors[0].width;
-
-	panel->temp_pmap =
-		XCreatePixmap(server.display, server.root_win, panel->area.width, panel->area.height, server.depth);
-	render_panel(panel);
-
-	XSync(server.display, False);
-
 	imlib_context_set_drawable(panel->temp_pmap);
 	Imlib_Image img = imlib_create_image_from_drawable(0, 0, 0, panel->area.width, panel->area.height, 1);
 
@@ -572,7 +659,7 @@ void get_snapshot(const char *path)
 			XGetImage(server.display, panel->temp_pmap, 0, 0, panel->area.width, panel->area.height, AllPlanes, ZPixmap);
 
 		if (ximg) {
-			DATA32 *pixels = calloc(panel->area.width * panel->area.height, sizeof(DATA32));
+			DATA32 *pixels = (DATA32 *)calloc(panel->area.width * panel->area.height, sizeof(DATA32));
 			for (int x = 0; x < panel->area.width; x++) {
 				for (int y = 0; y < panel->area.height; y++) {
 					DATA32 xpixel = XGetPixel(ximg, x, y);
@@ -603,6 +690,22 @@ void get_snapshot(const char *path)
 	}
 }
 
+void get_snapshot(const char *path)
+{
+	Panel *panel = &panels[0];
+
+	if (panel->area.width > server.monitors[0].width)
+		panel->area.width = server.monitors[0].width;
+
+	panel->temp_pmap =
+	    XCreatePixmap(server.display, server.root_win, panel->area.width, panel->area.height, server.depth);
+	render_panel(panel);
+
+	XSync(server.display, False);
+
+	dump_panel_to_file(panel, path);
+}
+
 void window_action(Task *task, MouseAction action)
 {
 	if (!task)
@@ -671,8 +774,8 @@ int tint2_handles_click(Panel *panel, XButtonEvent *e)
 	Task *task = click_task(panel, e->x, e->y);
 	if (task) {
 		if ((e->button == 1 && mouse_left != 0) || (e->button == 2 && mouse_middle != 0) ||
-			(e->button == 3 && mouse_right != 0) || (e->button == 4 && mouse_scroll_up != 0) ||
-			(e->button == 5 && mouse_scroll_down != 0)) {
+		    (e->button == 3 && mouse_right != 0) || (e->button == 4 && mouse_scroll_up != 0) ||
+		    (e->button == 5 && mouse_scroll_down != 0)) {
 			return 1;
 		} else
 			return 0;
@@ -691,8 +794,8 @@ int tint2_handles_click(Panel *panel, XButtonEvent *e)
 		return 1;
 	if (click_clock(panel, e->x, e->y)) {
 		if ((e->button == 1 && clock_lclick_command) || (e->button == 2 && clock_mclick_command) ||
-			(e->button == 3 && clock_rclick_command) || (e->button == 4 && clock_uwheel_command) ||
-			(e->button == 5 && clock_dwheel_command))
+		    (e->button == 3 && clock_rclick_command) || (e->button == 4 && clock_uwheel_command) ||
+		    (e->button == 5 && clock_dwheel_command))
 			return 1;
 		else
 			return 0;
@@ -700,8 +803,8 @@ int tint2_handles_click(Panel *panel, XButtonEvent *e)
 #ifdef ENABLE_BATTERY
 	if (click_battery(panel, e->x, e->y)) {
 		if ((e->button == 1 && battery_lclick_command) || (e->button == 2 && battery_mclick_command) ||
-			(e->button == 3 && battery_rclick_command) || (e->button == 4 && battery_uwheel_command) ||
-			(e->button == 5 && battery_dwheel_command))
+		    (e->button == 3 && battery_rclick_command) || (e->button == 4 && battery_uwheel_command) ||
+		    (e->button == 5 && battery_dwheel_command))
 			return 1;
 		else
 			return 0;
@@ -770,7 +873,7 @@ void event_button_motion_notify(XEvent *e)
 					task_iter->data = drag_iter->data;
 					drag_iter->data = temp;
 					event_taskbar->area.resize_needed = 1;
-					panel_refresh = TRUE;
+					schedule_panel_redraw();
 					task_dragged = 1;
 				}
 			}
@@ -801,7 +904,7 @@ void event_button_motion_notify(XEvent *e)
 		event_taskbar->area.resize_needed = 1;
 		drag_taskbar->area.resize_needed = 1;
 		task_dragged = 1;
-		panel_refresh = TRUE;
+		schedule_panel_redraw();
 		panel->area.resize_needed = 1;
 	}
 }
@@ -901,7 +1004,7 @@ void event_button_release(XEvent *e)
 	if (taskbar_mode == MULTI_DESKTOP) {
 		gboolean diff_desktop = FALSE;
 		if (taskbar->desktop != server.desktop && action != CLOSE && action != DESKTOP_LEFT &&
-			action != DESKTOP_RIGHT) {
+		    action != DESKTOP_RIGHT) {
 			diff_desktop = TRUE;
 			change_desktop(taskbar->desktop);
 		}
@@ -956,7 +1059,7 @@ void update_desktop_names()
 	for (GSList *l = list; l; l = l->next)
 		g_free(l->data);
 	g_slist_free(list);
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void update_task_desktop(Task *task)
@@ -966,7 +1069,7 @@ void update_task_desktop(Task *task)
 	remove_task(task);
 	task = add_task(win);
 	reset_active_task();
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void event_property_notify(XEvent *e)
@@ -1000,8 +1103,8 @@ void event_property_notify(XEvent *e)
 		}
 		// Change desktops
 		else if (at == server.atom._NET_NUMBER_OF_DESKTOPS || at == server.atom._NET_DESKTOP_GEOMETRY ||
-				 at == server.atom._NET_DESKTOP_VIEWPORT || at == server.atom._NET_WORKAREA ||
-				 at == server.atom._NET_CURRENT_DESKTOP) {
+		         at == server.atom._NET_DESKTOP_VIEWPORT || at == server.atom._NET_WORKAREA ||
+		         at == server.atom._NET_CURRENT_DESKTOP) {
 			if (debug)
 				fprintf(stderr, "%s %d: win = root, atom = ?? desktops changed\n", __FUNCTION__, __LINE__);
 			if (!taskbar_enabled)
@@ -1024,8 +1127,11 @@ void event_property_notify(XEvent *e)
 				taskbar_refresh_tasklist();
 				reset_active_task();
 				update_all_taskbars_visibility();
-				panel_refresh = TRUE;
+				if (old_desktop != server.desktop)
+					tooltip_trigger_hide();
+				schedule_panel_redraw();
 			} else if (old_desktop != server.desktop) {
+				tooltip_trigger_hide();
 				for (int i = 0; i < num_panels; i++) {
 					Panel *panel = &panels[i];
 					set_taskbar_state(&panel->taskbar[old_desktop], TASKBAR_NORMAL);
@@ -1042,7 +1148,7 @@ void event_property_notify(XEvent *e)
 							if (task->desktop == ALL_DESKTOPS) {
 								task->area.on_screen = always_show_all_desktop_tasks;
 								taskbar->area.resize_needed = 1;
-								panel_refresh = TRUE;
+								schedule_panel_redraw();
 								if (taskbar_mode == MULTI_DESKTOP)
 									panel->area.resize_needed = 1;
 							}
@@ -1093,14 +1199,14 @@ void event_property_notify(XEvent *e)
 				fprintf(stderr, "%s %d: win = root, atom = _NET_CLIENT_LIST\n", __FUNCTION__, __LINE__);
 			taskbar_refresh_tasklist();
 			update_all_taskbars_visibility();
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		}
 		// Change active
 		else if (at == server.atom._NET_ACTIVE_WINDOW) {
 			if (debug)
 				fprintf(stderr, "%s %d: win = root, atom = _NET_ACTIVE_WINDOW\n", __FUNCTION__, __LINE__);
 			reset_active_task();
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		} else if (at == server.atom._XROOTPMAP_ID || at == server.atom._XROOTMAP_ID) {
 			if (debug)
 				fprintf(stderr, "%s %d: win = root, atom = _XROOTPMAP_ID\n", __FUNCTION__, __LINE__);
@@ -1108,7 +1214,7 @@ void event_property_notify(XEvent *e)
 			for (int i = 0; i < num_panels; i++) {
 				set_panel_background(&panels[i]);
 			}
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		}
 	} else {
 		TrayWindow *traywin = systray_find_icon(win);
@@ -1121,12 +1227,12 @@ void event_property_notify(XEvent *e)
 		if (debug) {
 			char *atom_name = XGetAtomName(server.display, at);
 			fprintf(stderr,
-					"%s %d: win = %ld, task = %s, atom = %s\n",
-					__FUNCTION__,
-					__LINE__,
-					win,
-					task ? (task->title ? task->title : "??") : "null",
-					atom_name);
+			        "%s %d: win = %ld, task = %s, atom = %s\n",
+			        __FUNCTION__,
+			        __LINE__,
+			        win,
+			        task ? (task->title ? task->title : "??") : "null",
+			        atom_name);
 			XFree(atom_name);
 		}
 		if (!task) {
@@ -1139,7 +1245,7 @@ void event_property_notify(XEvent *e)
 				XGetWindowAttributes(server.display, win, &wa);
 				if (wa.map_state == IsViewable && !window_is_skip_taskbar(win)) {
 					if ((task = add_task(win)))
-						panel_refresh = TRUE;
+						schedule_panel_redraw();
 				}
 			}
 			return;
@@ -1155,7 +1261,7 @@ void event_property_notify(XEvent *e)
 				}
 				if (taskbar_sort_method == TASKBAR_SORT_TITLE)
 					sort_taskbar_for_win(win);
-				panel_refresh = TRUE;
+				schedule_panel_redraw();
 			}
 		}
 		// Demand attention
@@ -1175,7 +1281,7 @@ void event_property_notify(XEvent *e)
 			}
 			if (window_is_skip_taskbar(win)) {
 				remove_task(task);
-				panel_refresh = TRUE;
+				schedule_panel_redraw();
 			}
 		} else if (at == server.atom.WM_STATE) {
 			// Iconic state
@@ -1183,12 +1289,12 @@ void event_property_notify(XEvent *e)
 			if (window_is_iconified(win))
 				state = TASK_ICONIFIED;
 			set_task_state(task, state);
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		}
 		// Window icon changed
 		else if (at == server.atom._NET_WM_ICON) {
 			task_update_icon(task);
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		}
 		// Window desktop changed
 		else if (at == server.atom._NET_WM_DESKTOP) {
@@ -1205,7 +1311,7 @@ void event_property_notify(XEvent *e)
 			}
 			XFree(wmhints);
 			task_update_icon(task);
-			panel_refresh = TRUE;
+			schedule_panel_redraw();
 		}
 
 		if (!server.got_root_win)
@@ -1220,7 +1326,7 @@ void event_expose(XEvent *e)
 	if (!panel)
 		return;
 	// TODO : one panel_refresh per panel ?
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void event_configure_notify(XEvent *e)
@@ -1230,19 +1336,19 @@ void event_configure_notify(XEvent *e)
 	if (0) {
 		Task *task = get_task(win);
 		fprintf(stderr,
-				"%s %d: win = %ld, task = %s\n",
-				__FUNCTION__,
-				__LINE__,
-				win,
-				task ? (task->title ? task->title : "??") : "null");
+		        "%s %d: win = %ld, task = %s\n",
+		        __FUNCTION__,
+		        __LINE__,
+		        win,
+		        task ? (task->title ? task->title : "??") : "null");
 	}
 
 	// change in root window (xrandr)
 	if (win == server.root_win) {
 		fprintf(stderr,
-				YELLOW "%s %d: triggering tint2 restart due to configuration change in the root window" RESET "\n",
-				__FILE__,
-				__LINE__);
+		        YELLOW "%s %d: triggering tint2 restart due to configuration change in the root window" RESET "\n",
+		        __FILE__,
+		        __LINE__);
 		signal_pending = SIGUSR1;
 		return;
 	}
@@ -1260,15 +1366,15 @@ void event_configure_notify(XEvent *e)
 			Panel *p = task->area.panel;
 			int monitor = get_window_monitor(win);
 			if ((hide_task_diff_monitor && p->monitor != monitor && task->area.on_screen) ||
-				(hide_task_diff_monitor && p->monitor == monitor && !task->area.on_screen) ||
-				(p->monitor != monitor && num_panels > 1)) {
+			    (hide_task_diff_monitor && p->monitor == monitor && !task->area.on_screen) ||
+			    (p->monitor != monitor && num_panels > 1)) {
 				remove_task(task);
 				task = add_task(win);
 				if (win == get_active_window()) {
 					set_task_state(task, TASK_ACTIVE);
 					active_task = task;
 				}
-				panel_refresh = TRUE;
+				schedule_panel_redraw();
 			}
 		}
 	}
@@ -1317,17 +1423,17 @@ struct Property read_property(Display *disp, Window w, Atom property)
 		if (ret != 0)
 			XFree(ret);
 		XGetWindowProperty(disp,
-						   w,
-						   property,
-						   0,
-						   read_bytes,
-						   False,
-						   AnyPropertyType,
-						   &actual_type,
-						   &actual_format,
-						   &nitems,
-						   &bytes_after,
-						   &ret);
+		                   w,
+		                   property,
+		                   0,
+		                   read_bytes,
+		                   False,
+		                   AnyPropertyType,
+		                   &actual_type,
+		                   &actual_format,
+		                   &nitems,
+		                   &bytes_after,
+		                   &ret);
 		read_bytes *= 2;
 	} while (bytes_after != 0);
 
@@ -1483,18 +1589,18 @@ void dnd_drop(XClientMessageEvent *e)
 	if (dnd_target_window && dnd_launcher_exec) {
 		if (dnd_version >= 1) {
 			XConvertSelection(server.display,
-							  server.atom.XdndSelection,
-							  XA_STRING,
-							  dnd_selection,
-							  dnd_target_window,
-							  e->data.l[2]);
+			                  server.atom.XdndSelection,
+			                  XA_STRING,
+			                  dnd_selection,
+			                  dnd_target_window,
+			                  e->data.l[2]);
 		} else {
 			XConvertSelection(server.display,
-							  server.atom.XdndSelection,
-							  XA_STRING,
-							  dnd_selection,
-							  dnd_target_window,
-							  CurrentTime);
+			                  server.atom.XdndSelection,
+			                  XA_STRING,
+			                  dnd_selection,
+			                  dnd_target_window,
+			                  CurrentTime);
 		}
 	} else {
 		// The source is sending anyway, despite instructions to the contrary.
@@ -1522,8 +1628,8 @@ start:
 
 	if (!config_read()) {
 		fprintf(stderr,
-				"Could not read config file.\n"
-				"Usage: tint2 [[-c] <config_file>]\n");
+		        "Could not read config file.\n"
+		        "Usage: tint2 [[-c] <config_file>]\n");
 		cleanup();
 		exit(1);
 	}
@@ -1556,69 +1662,74 @@ start:
 	int ufd = uevent_init();
 	int hidden_dnd = 0;
 
+	double ts_event_read = 0;
+	double ts_event_processed = 0;
+	double ts_render_finished = 0;
+	double ts_flush_finished = 0;
+	gboolean first_render = TRUE;
 	while (1) {
 		if (panel_refresh) {
+			if (debug_fps)
+				ts_event_processed = get_time();
 			if (systray_profile)
 				fprintf(stderr,
-						BLUE "[%f] %s:%d redrawing panel" RESET "\n",
-						profiling_get_time(),
-						__FUNCTION__,
-						__LINE__);
+				        BLUE "[%f] %s:%d redrawing panel" RESET "\n",
+				        profiling_get_time(),
+				        __FUNCTION__,
+				        __LINE__);
 			panel_refresh = FALSE;
 
 			for (int i = 0; i < num_panels; i++) {
 				Panel *panel = &panels[i];
+				if (!first_render)
+					shrink_panel(panel);
+
+				if (!panel->is_hidden || panel->area.resize_needed) {
+					if (panel->temp_pmap)
+						XFreePixmap(server.display, panel->temp_pmap);
+					panel->temp_pmap = XCreatePixmap(server.display,
+					                                 server.root_win,
+					                                 panel->area.width,
+					                                 panel->area.height,
+					                                 server.depth);
+					render_panel(panel);
+				}
 
 				if (panel->is_hidden) {
 					if (!panel->hidden_pixmap) {
 						panel->hidden_pixmap = XCreatePixmap(server.display,
-															 server.root_win,
-															 panel->hidden_width,
-															 panel->hidden_height,
-															 server.depth);
+						                                     server.root_win,
+						                                     panel->hidden_width,
+						                                     panel->hidden_height,
+						                                     server.depth);
 						int xoff = 0, yoff = 0;
 						if (panel_horizontal && panel_position & BOTTOM)
 							yoff = panel->area.height - panel->hidden_height;
 						else if (!panel_horizontal && panel_position & RIGHT)
 							xoff = panel->area.width - panel->hidden_width;
 						XCopyArea(server.display,
-								  panel->area.pix,
-								  panel->hidden_pixmap,
-								  server.gc,
-								  xoff,
-								  yoff,
-								  panel->hidden_width,
-								  panel->hidden_height,
-								  0,
-								  0);
+						          panel->area.pix,
+						          panel->hidden_pixmap,
+						          server.gc,
+						          xoff,
+						          yoff,
+						          panel->hidden_width,
+						          panel->hidden_height,
+						          0,
+						          0);
 					}
 					XCopyArea(server.display,
-							  panel->hidden_pixmap,
-							  panel->main_win,
-							  server.gc,
-							  0,
-							  0,
-							  panel->hidden_width,
-							  panel->hidden_height,
-							  0,
-							  0);
+					          panel->hidden_pixmap,
+					          panel->main_win,
+					          server.gc,
+					          0,
+					          0,
+					          panel->hidden_width,
+					          panel->hidden_height,
+					          0,
+					          0);
 					XSetWindowBackgroundPixmap(server.display, panel->main_win, panel->hidden_pixmap);
 				} else {
-					if (panel->temp_pmap)
-						XFreePixmap(server.display, panel->temp_pmap);
-					panel->temp_pmap = XCreatePixmap(server.display,
-													 server.root_win,
-													 panel->area.width,
-													 panel->area.height,
-													 server.depth);
-					render_panel(panel);
-					if (panel == (Panel *)systray.area.panel) {
-						if (refresh_systray && panel && !panel->is_hidden) {
-							refresh_systray = FALSE;
-							XSetWindowBackgroundPixmap(server.display, panel->main_win, panel->temp_pmap);
-							refresh_systray_icons();
-						}
-					}
 					XCopyArea(server.display,
 							  panel->temp_pmap,
 							  panel->main_win,
@@ -1629,9 +1740,54 @@ start:
 							  panel->area.height,
 							  0,
 							  0);
+					if (panel == (Panel *)systray.area.panel) {
+						if (refresh_systray && panel && !panel->is_hidden) {
+							refresh_systray = FALSE;
+							XSetWindowBackgroundPixmap(server.display, panel->main_win, panel->temp_pmap);
+							refresh_systray_icons();
+						}
+					}
 				}
 			}
+			if (first_render) {
+				first_render = FALSE;
+				if (panel_shrink)
+					schedule_panel_redraw();
+			}
+			if (debug_fps)
+				ts_render_finished = get_time();
 			XFlush(server.display);
+			if (debug_fps && ts_event_read > 0) {
+				ts_flush_finished = get_time();
+				double period = ts_flush_finished - ts_event_read;
+				double fps = 1.0 / period;
+				sample_fps(fps);
+				double proc_ratio = (ts_event_processed - ts_event_read) / period;
+				double render_ratio = (ts_render_finished - ts_event_processed) / period;
+				double flush_ratio = (ts_flush_finished - ts_render_finished) / period;
+				double fps_low, fps_median, fps_high, fps_samples;
+				fps_compute_stats(&fps_low, &fps_median, &fps_high, &fps_samples);
+				fprintf(stderr,
+						BLUE "frame %d: fps = %.0f (low %.0f, med %.0f, high %.0f, samples %.0f) : processing %.0f%%, rendering %.0f%%, "
+				             "flushing %.0f%%" RESET "\n",
+						frame,
+						fps,
+				        fps_low,
+				        fps_median,
+				        fps_high,
+						fps_samples,
+				        proc_ratio * 100,
+				        render_ratio * 100,
+				        flush_ratio * 100);
+			}
+			if (debug_frames) {
+				for (int i = 0; i < num_panels; i++) {
+					char path[256];
+					sprintf(path, "tint2-%d-panel-%d-frame-%d.png", getpid(), i, frame);
+					dump_panel_to_file(&panels[i], path);
+				}
+			}
+			frame++;
 		}
 
 		// Create a File Description Set containing x11_fd
@@ -1659,6 +1815,7 @@ start:
 		struct timeval *select_timeout = (next_timeout.tv_sec >= 0 && next_timeout.tv_usec >= 0) ? &next_timeout : NULL;
 
 		// Wait for X Event or a Timer
+		ts_event_read = 0;
 		if (XPending(server.display) > 0 || select(maxfd + 1, &fdset, 0, 0, select_timeout) >= 0) {
 			uevent_handler();
 
@@ -1675,13 +1832,15 @@ start:
 					for (l_instance = execp->backend->instances; l_instance; l_instance = l_instance->next) {
 						Execp *instance = l_instance->data;
 						instance->area.resize_needed = TRUE;
-						panel_refresh = TRUE;
+						schedule_panel_redraw();
 					}
 				}
 			}
 			if (XPending(server.display) > 0) {
 				XEvent e;
 				XNextEvent(server.display, &e);
+				if (debug_fps)
+					ts_event_read = get_time();
 #if HAVE_SN
 				if (startup_notifications)
 					sn_display_process_event(server.sn_display, &e);
@@ -1700,7 +1859,7 @@ start:
 						} else
 							continue; // discard further processing of this event because the panel is not visible yet
 					} else if (hidden_dnd && e.type == ClientMessage &&
-							   e.xclient.message_type == server.atom.XdndLeave) {
+					           e.xclient.message_type == server.atom.XdndLeave) {
 						hidden_dnd = 0;
 						autohide_hide(panel);
 					}
@@ -1798,9 +1957,9 @@ start:
 					if (e.xany.window == server.composite_manager) {
 						// Stop real_transparency
 						fprintf(stderr,
-								YELLOW "%s %d: triggering tint2 restart due to compositor shutdown" RESET "\n",
-								__FILE__,
-								__LINE__);
+						        YELLOW "%s %d: triggering tint2 restart due to compositor shutdown" RESET "\n",
+						        __FILE__,
+						        __LINE__);
 						signal_pending = SIGUSR1;
 						break;
 					}
@@ -1820,21 +1979,21 @@ start:
 						if (ev->data.l[2] == None) {
 							// Stop real_transparency
 							fprintf(stderr,
-									YELLOW "%s %d: triggering tint2 restart due to change in transparency" RESET "\n",
-									__FILE__,
-									__LINE__);
+							        YELLOW "%s %d: triggering tint2 restart due to change in transparency" RESET "\n",
+							        __FILE__,
+							        __LINE__);
 							signal_pending = SIGUSR1;
 						} else {
 							// Start real_transparency
 							fprintf(stderr,
-									YELLOW "%s %d: triggering tint2 restart due to change in transparency" RESET "\n",
-									__FILE__,
-									__LINE__);
+							        YELLOW "%s %d: triggering tint2 restart due to change in transparency" RESET "\n",
+							        __FILE__,
+							        __LINE__);
 							signal_pending = SIGUSR1;
 						}
 					}
 					if (systray_enabled && e.xclient.message_type == server.atom._NET_SYSTEM_TRAY_OPCODE &&
-						e.xclient.format == 32 && e.xclient.window == net_sel_win) {
+					    e.xclient.format == 32 && e.xclient.window == net_sel_win) {
 						net_message(&e.xclient);
 					} else if (e.xclient.message_type == server.atom.XdndEnter) {
 						dnd_enter(&e.xclient);
@@ -1852,20 +2011,20 @@ start:
 					fprintf(stderr, "DnD %s:%d: A selection notify has arrived!\n", __FILE__, __LINE__);
 					fprintf(stderr, "DnD %s:%d: Requestor = %lu\n", __FILE__, __LINE__, e.xselectionrequest.requestor);
 					fprintf(stderr,
-							"DnD %s:%d: Selection atom = %s\n",
-							__FILE__,
-							__LINE__,
-							GetAtomName(server.display, e.xselection.selection));
+					        "DnD %s:%d: Selection atom = %s\n",
+					        __FILE__,
+					        __LINE__,
+					        GetAtomName(server.display, e.xselection.selection));
 					fprintf(stderr,
-							"DnD %s:%d: Target atom    = %s\n",
-							__FILE__,
-							__LINE__,
-							GetAtomName(server.display, target));
+					        "DnD %s:%d: Target atom    = %s\n",
+					        __FILE__,
+					        __LINE__,
+					        GetAtomName(server.display, target));
 					fprintf(stderr,
-							"DnD %s:%d: Property atom  = %s\n",
-							__FILE__,
-							__LINE__,
-							GetAtomName(server.display, e.xselection.property));
+					        "DnD %s:%d: Property atom  = %s\n",
+					        __FILE__,
+					        __LINE__,
+					        GetAtomName(server.display, e.xselection.property));
 
 					if (e.xselection.property != None && dnd_launcher_exec) {
 						Property prop = read_property(server.display, dnd_target_window, dnd_selection);
@@ -1881,11 +2040,11 @@ start:
 								// Request the data type we are able to select
 								fprintf(stderr, "Now requsting type %s", GetAtomName(server.display, dnd_atom));
 								XConvertSelection(server.display,
-												  dnd_selection,
-												  dnd_atom,
-												  dnd_selection,
-												  dnd_target_window,
-												  CurrentTime);
+								                  dnd_selection,
+								                  dnd_atom,
+								                  dnd_selection,
+								                  dnd_target_window,
+								                  CurrentTime);
 							}
 						} else if (target == dnd_atom) {
 							// Dump the binary data

src/tint2conf/CMakeLists.txt

@@ -26,10 +26,13 @@ set(SOURCES ../util/common.c
             ../server.c
             ../launcher/apps-common.c
             ../launcher/icon-theme-common.c
+            md4.c
             main.c
             properties.c
             properties_rw.c
-            theme_view.c )
+            theme_view.c
+            background_gui.c
+            gradient_gui.c )
 
 add_definitions( -DTINT2CONF )
 
@@ -57,19 +60,14 @@ target_link_libraries( tint2conf ${X11_T2C_LIBRARIES}
                                  ${GTK2_LIBRARIES}
                                  ${RSVG_LIBRARIES} )
 
-if ( NOT DATADIR )
-  set(DATADIR share)
-endif( NOT DATADIR )
-
 add_definitions( -DINSTALL_PREFIX=\"${CMAKE_INSTALL_PREFIX}\" )
-add_definitions( -DLOCALEDIR=\"${CMAKE_INSTALL_PREFIX}/${DATADIR}/locale\" )
+add_definitions( -DLOCALEDIR=\"${CMAKE_INSTALL_FULL_LOCALEDIR}\" )
 add_definitions( -DGETTEXT_PACKAGE=\"tint2conf\" )
-set_target_properties( tint2conf PROPERTIES COMPILE_FLAGS "-Wall -pthread -std=c99" )
+set_target_properties( tint2conf PROPERTIES COMPILE_FLAGS "-Wall -pthread -std=c11" )
 set_target_properties( tint2conf PROPERTIES LINK_FLAGS "-pthread" )
 
 add_subdirectory(po)
 
 install( TARGETS tint2conf DESTINATION bin )
-install( FILES tint2conf.svg DESTINATION ${DATADIR}/icons/hicolor/scalable/apps )
-install( FILES tint2conf.desktop DESTINATION ${DATADIR}/applications )
-install( CODE "execute_process(COMMAND gtk-update-icon-cache -f -t ${DATADIR}/icons/hicolor WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX})" )
+install( FILES tint2conf.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps )
+install( FILES tint2conf.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )

src/tint2conf/background_gui.h

@@ -0,0 +1,15 @@
+#ifndef BACKGROUND_GUI_H
+#define BACKGROUND_GUI_H
+
+#include "gui.h"
+
+void create_background(GtkWidget *parent);
+void background_duplicate(GtkWidget *widget, gpointer data);
+void background_delete(GtkWidget *widget, gpointer data);
+void background_update_image(int index);
+void background_update(GtkWidget *widget, gpointer data);
+void current_background_changed(GtkWidget *widget, gpointer data);
+void background_combo_changed(GtkWidget *widget, gpointer data);
+GtkWidget *create_background_combo(const char *label);
+
+#endif

src/tint2conf/gradient_gui.c

@@ -0,0 +1,612 @@
+#include "gradient_gui.h"
+
+#include <math.h>
+
+GtkListStore *gradient_ids, *gradient_stop_ids;
+GList *gradients;
+GtkWidget *current_gradient, *gradient_combo_type, *gradient_start_color, *gradient_end_color, *current_gradient_stop,
+*gradient_stop_color, *gradient_stop_offset;
+
+int gradient_index_safe(int index)
+{
+	if (index <= 0)
+		index = 0;
+	if (index >= get_model_length(GTK_TREE_MODEL(gradient_ids)))
+		index = 0;
+	return index;
+}
+
+GtkWidget *create_gradient_combo()
+{
+	GtkWidget *combo = gtk_combo_box_new_with_model(GTK_TREE_MODEL(gradient_ids));
+	GtkCellRenderer *renderer = gtk_cell_renderer_pixbuf_new();
+	gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
+	gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "pixbuf", grColPixbuf, NULL);
+	renderer = gtk_cell_renderer_text_new();
+	g_object_set(renderer, "wrap-mode", PANGO_WRAP_WORD, NULL);
+	g_object_set(renderer, "wrap-width", 300, NULL);
+	gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
+	gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", grColText, NULL);
+	return combo;
+}
+
+void create_gradient(GtkWidget *parent)
+{
+	gradient_ids = gtk_list_store_new(grNumCols, GDK_TYPE_PIXBUF, GTK_TYPE_INT, GTK_TYPE_STRING);
+	gradients = NULL;
+
+	gradient_stop_ids = gtk_list_store_new(grStopNumCols, GDK_TYPE_PIXBUF);
+
+	GtkWidget *table, *label, *button;
+	int row, col;
+	// GtkTooltips *tooltips = gtk_tooltips_new();
+
+	table = gtk_table_new(1, 4, FALSE);
+	gtk_widget_show(table);
+	gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
+	gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
+	gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
+
+	row = 0, col = 0;
+	label = gtk_label_new(_("<b>Gradient</b>"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	current_gradient = create_gradient_combo();
+	gtk_widget_show(current_gradient);
+	gtk_table_attach(GTK_TABLE(table), current_gradient, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	button = gtk_button_new_from_stock("gtk-add");
+	gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gradient_duplicate), NULL);
+	gtk_widget_show(button);
+	gtk_table_attach(GTK_TABLE(table), button, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	button = gtk_button_new_from_stock("gtk-remove");
+	gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gradient_delete), NULL);
+	gtk_widget_show(button);
+	gtk_table_attach(GTK_TABLE(table), button, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	table = gtk_table_new(3, 4, FALSE);
+	gtk_widget_show(table);
+	gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
+	gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
+	gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
+
+	row = 0, col = 2;
+	label = gtk_label_new(_("Type"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	gradient_combo_type = gtk_combo_box_new_text();
+	gtk_widget_show(gradient_combo_type);
+	gtk_table_attach(GTK_TABLE(table), gradient_combo_type, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+	gtk_combo_box_append_text(GTK_COMBO_BOX(gradient_combo_type), _("Vertical"));
+	gtk_combo_box_append_text(GTK_COMBO_BOX(gradient_combo_type), _("Horizontal"));
+	gtk_combo_box_append_text(GTK_COMBO_BOX(gradient_combo_type), _("Radial"));
+	gtk_combo_box_set_active(GTK_COMBO_BOX(gradient_combo_type), 0);
+
+	row++, col = 2;
+	label = gtk_label_new(_("Start color"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	gradient_start_color = gtk_color_button_new();
+	gtk_color_button_set_use_alpha(GTK_COLOR_BUTTON(gradient_start_color), TRUE);
+	gtk_widget_show(gradient_start_color);
+	gtk_table_attach(GTK_TABLE(table), gradient_start_color, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	row++, col = 2;
+	label = gtk_label_new(_("End color"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	gradient_end_color = gtk_color_button_new();
+	gtk_color_button_set_use_alpha(GTK_COLOR_BUTTON(gradient_end_color), TRUE);
+	gtk_widget_show(gradient_end_color);
+	gtk_table_attach(GTK_TABLE(table), gradient_end_color, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	change_paragraph(parent);
+
+	table = gtk_table_new(1, 4, FALSE);
+	gtk_widget_show(table);
+	gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
+	gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
+	gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
+
+	row = 0, col = 0;
+	label = gtk_label_new(_("<b>Color stop</b>"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	current_gradient_stop = create_gradient_stop_combo(NULL);
+	gtk_widget_show(current_gradient_stop);
+	gtk_table_attach(GTK_TABLE(table), current_gradient_stop, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	button = gtk_button_new_from_stock("gtk-add");
+	gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gradient_stop_duplicate), NULL);
+	gtk_widget_show(button);
+	gtk_table_attach(GTK_TABLE(table), button, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	button = gtk_button_new_from_stock("gtk-remove");
+	gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gradient_stop_delete), NULL);
+	gtk_widget_show(button);
+	gtk_table_attach(GTK_TABLE(table), button, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	table = gtk_table_new(3, 4, FALSE);
+	gtk_widget_show(table);
+	gtk_box_pack_start(GTK_BOX(parent), table, FALSE, FALSE, 0);
+	gtk_table_set_row_spacings(GTK_TABLE(table), ROW_SPACING);
+	gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
+
+	row = 0, col = 2;
+	label = gtk_label_new(_("Color"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	gradient_stop_color = gtk_color_button_new();
+	gtk_color_button_set_use_alpha(GTK_COLOR_BUTTON(gradient_stop_color), TRUE);
+	gtk_widget_show(gradient_stop_color);
+	gtk_table_attach(GTK_TABLE(table), gradient_stop_color, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	row++, col = 2;
+	label = gtk_label_new(_("Position"));
+	gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+	gtk_widget_show(label);
+	gtk_table_attach(GTK_TABLE(table), label, col, col+1, row, row+1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	gradient_stop_offset = gtk_spin_button_new_with_range(0, 100, 1);
+	gtk_widget_show(gradient_stop_offset);
+	gtk_table_attach(GTK_TABLE(table), gradient_stop_offset, col, col+1, row, row+1, GTK_FILL, 0, 0, 0);
+	col++;
+
+	g_signal_connect(G_OBJECT(current_gradient), "changed", G_CALLBACK(current_gradient_changed), NULL);
+	g_signal_connect(G_OBJECT(gradient_combo_type), "changed", G_CALLBACK(gradient_update), NULL);
+	g_signal_connect(G_OBJECT(gradient_start_color), "color-set", G_CALLBACK(gradient_update), NULL);
+	g_signal_connect(G_OBJECT(gradient_end_color), "color-set", G_CALLBACK(gradient_update), NULL);
+
+	g_signal_connect(G_OBJECT(current_gradient_stop), "changed", G_CALLBACK(current_gradient_stop_changed), NULL);
+	g_signal_connect(G_OBJECT(gradient_stop_color), "color-set", G_CALLBACK(gradient_stop_update), NULL);
+	g_signal_connect(G_OBJECT(gradient_stop_offset), "value-changed", G_CALLBACK(gradient_stop_update), NULL);
+
+	change_paragraph(parent);
+}
+
+void gradient_create_new(GradientConfigType t)
+{
+	int index = get_model_length(GTK_TREE_MODEL(gradient_ids));
+
+	GradientConfig *g = (GradientConfig *)calloc(1, sizeof(GradientConfig));
+	g->type = t;
+	gradients = g_list_append(gradients, g);
+	GtkTreeIter iter;
+	gtk_list_store_append(gradient_ids, &iter);
+	gtk_list_store_set(gradient_ids, &iter,
+					   grColPixbuf, NULL,
+					   grColId, &index,
+					   grColText, index == 0 ? _("None") : "",
+					   -1);
+
+	gradient_update_image(index);
+	gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient), index);
+	current_gradient_changed(0, 0);
+}
+
+gpointer copy_GradientConfigColorStop(gconstpointer arg, gpointer data)
+{
+	GradientConfigColorStop *old = (GradientConfigColorStop *)arg;
+
+	GradientConfigColorStop *copy = (GradientConfigColorStop *)calloc(1, sizeof(GradientConfigColorStop));
+	memcpy(copy, old, sizeof(GradientConfigColorStop));
+	return copy;
+}
+
+void gradient_duplicate(GtkWidget *widget, gpointer data)
+{
+	int old_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (old_index < 0) {
+		gradient_create_new(GRADIENT_CONFIG_VERTICAL);
+		return;
+	}
+
+	GradientConfig *g_old = (GradientConfig*)g_list_nth(gradients, (guint)old_index)->data;
+
+	int index = get_model_length(GTK_TREE_MODEL(gradient_ids));
+
+	GradientConfig *g = (GradientConfig *)calloc(1, sizeof(GradientConfig));
+	g->type = g_old->type;
+	g->start_color = g_old->start_color;
+	g->end_color = g_old->end_color;
+	g->extra_color_stops = g_list_copy_deep(g->extra_color_stops, copy_GradientConfigColorStop, NULL);
+	gradients = g_list_append(gradients, g);
+	GtkTreeIter iter;
+	gtk_list_store_append(gradient_ids, &iter);
+	gtk_list_store_set(gradient_ids, &iter,
+					   grColPixbuf, NULL,
+					   grColId, &index,
+					   grColText, "",
+					   -1);
+
+	gradient_update_image(index);
+	gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient), index);
+	current_gradient_changed(0, 0);
+}
+
+void gradient_delete(GtkWidget *widget, gpointer data)
+{
+	int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (index < 0)
+		return;
+
+	if (get_model_length(GTK_TREE_MODEL(gradient_ids)) <= 1)
+		return;
+
+	GtkTreePath *path;
+	GtkTreeIter iter;
+
+	path = gtk_tree_path_new_from_indices(index, -1);
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_ids), &iter, path);
+	gtk_tree_path_free(path);
+
+	gradients = g_list_remove(gradients, g_list_nth(gradients, (guint)index)->data);
+	gtk_list_store_remove(gradient_ids, &iter);
+
+	background_update_for_gradient(index);
+
+	if (index >= get_model_length(GTK_TREE_MODEL(gradient_ids)))
+		index--;
+	gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient), index);
+}
+
+void gradient_draw(cairo_t *c, GradientConfig *g, int w, int h, gboolean preserve)
+{
+	cairo_pattern_t *gpat;
+	if (g->type == GRADIENT_CONFIG_VERTICAL)
+		gpat = cairo_pattern_create_linear(0, 0, 0, h);
+	else if (g->type == GRADIENT_CONFIG_HORIZONTAL)
+		gpat = cairo_pattern_create_linear(0, 0, w, 0);
+	else gpat = cairo_pattern_create_radial(w/2, h/2, 0, w/2, h/2, sqrt(w * w + h * h) / 2);
+	cairo_pattern_add_color_stop_rgba(gpat, 0.0, g->start_color.color.rgb[0], g->start_color.color.rgb[1], g->start_color.color.rgb[2], g->start_color.color.alpha);
+	for (GList *l = g->extra_color_stops; l; l = l->next) {
+		GradientConfigColorStop *stop = (GradientConfigColorStop *)l->data;
+		cairo_pattern_add_color_stop_rgba(gpat,
+										  stop->offset,
+										  stop->color.rgb[0],
+										  stop->color.rgb[1],
+										  stop->color.rgb[2],
+										  stop->color.alpha);
+	}
+	cairo_pattern_add_color_stop_rgba(gpat, 1.0, g->end_color.color.rgb[0], g->end_color.color.rgb[1], g->end_color.color.rgb[2], g->end_color.color.alpha);
+	cairo_set_source(c, gpat);
+	cairo_rectangle(c, 0, 0, w, h);
+	if (preserve)
+		cairo_fill_preserve(c);
+	else
+		cairo_fill(c);
+	cairo_pattern_destroy(gpat);
+}
+
+void gradient_update_image(int index)
+{
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)index)->data;
+
+	int w = 70;
+	int h = 30;
+	GdkPixmap *pixmap = gdk_pixmap_new(NULL, w, h, 24);
+
+	cairo_t *cr = gdk_cairo_create(pixmap);
+	cairo_set_source_rgb(cr, 0.5, 0.5, 0.5);
+	cairo_rectangle(cr, 0, 0, w, h);
+	cairo_fill(cr);
+
+	gradient_draw(cr, g, w, h, FALSE);
+
+	GdkPixbuf *pixbuf = gdk_pixbuf_get_from_drawable(NULL, pixmap, gdk_colormap_get_system(), 0, 0, 0, 0, w, h);
+	if (pixmap)
+		g_object_unref(pixmap);
+
+	GtkTreePath *path;
+	GtkTreeIter iter;
+
+	path = gtk_tree_path_new_from_indices(index, -1);
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_ids), &iter, path);
+	gtk_tree_path_free(path);
+
+	gtk_list_store_set(gradient_ids, &iter,
+					   grColPixbuf, pixbuf,
+					   -1);
+	if (pixbuf)
+		g_object_unref(pixbuf);
+}
+
+void gradient_force_update()
+{
+	gradient_update(NULL, NULL);
+}
+
+static gboolean gradient_updates_disabled = FALSE;
+void gradient_update(GtkWidget *widget, gpointer data)
+{
+	if (gradient_updates_disabled)
+		return;
+	int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (index <= 0)
+		return;
+
+	GtkTreePath *path;
+	GtkTreeIter iter;
+
+	path = gtk_tree_path_new_from_indices(index, -1);
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_ids), &iter, path);
+	gtk_tree_path_free(path);
+
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)index)->data;
+
+	g->type = (GradientConfigType)MAX(0, gtk_combo_box_get_active(GTK_COMBO_BOX(gradient_combo_type)));
+
+	GdkColor color;
+	int opacity;
+
+	gtk_color_button_get_color(GTK_COLOR_BUTTON(gradient_start_color), &color);
+	opacity = MIN(100, 0.5 + gtk_color_button_get_alpha(GTK_COLOR_BUTTON(gradient_start_color)) * 100.0 / 0xffff);
+	gdkColor2CairoColor(color, &g->start_color.color.rgb[0], &g->start_color.color.rgb[1], &g->start_color.color.rgb[2]);
+	g->start_color.color.alpha = opacity / 100.0;
+
+	gtk_color_button_get_color(GTK_COLOR_BUTTON(gradient_end_color), &color);
+	opacity = MIN(100, 0.5 + gtk_color_button_get_alpha(GTK_COLOR_BUTTON(gradient_end_color)) * 100.0 / 0xffff);
+	gdkColor2CairoColor(color, &g->end_color.color.rgb[0], &g->end_color.color.rgb[1], &g->end_color.color.rgb[2]);
+	g->end_color.color.alpha = opacity / 100.0;
+
+	gtk_list_store_set(gradient_ids, &iter,
+					   grColPixbuf, NULL,
+					   grColId, &index,
+					   grColText, "",
+					   -1);
+	gradient_update_image(index);
+	background_update_for_gradient(index);
+}
+
+void current_gradient_changed(GtkWidget *widget, gpointer data)
+{
+	int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (index < 0)
+		return;
+
+	gtk_widget_set_sensitive(gradient_combo_type, index > 0);
+	gtk_widget_set_sensitive(gradient_start_color, index > 0);
+	gtk_widget_set_sensitive(gradient_end_color, index > 0);
+	gtk_widget_set_sensitive(current_gradient_stop, index > 0);
+	gtk_widget_set_sensitive(gradient_stop_color, index > 0);
+	gtk_widget_set_sensitive(gradient_stop_offset, index > 0);
+
+	gradient_updates_disabled = TRUE;
+
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)index)->data;
+
+	gtk_combo_box_set_active(GTK_COMBO_BOX(gradient_combo_type), g->type);
+
+	GdkColor color;
+	int opacity;
+
+	cairoColor2GdkColor(g->start_color.color.rgb[0], g->start_color.color.rgb[1], g->start_color.color.rgb[2], &color);
+	opacity = g->start_color.color.alpha * 65535;
+	gtk_color_button_set_color(GTK_COLOR_BUTTON(gradient_start_color), &color);
+	gtk_color_button_set_alpha(GTK_COLOR_BUTTON(gradient_start_color), opacity);
+
+	cairoColor2GdkColor(g->end_color.color.rgb[0], g->end_color.color.rgb[1], g->end_color.color.rgb[2], &color);
+	opacity = g->end_color.color.alpha * 65535;
+	gtk_color_button_set_color(GTK_COLOR_BUTTON(gradient_end_color), &color);
+	gtk_color_button_set_alpha(GTK_COLOR_BUTTON(gradient_end_color), opacity);
+
+	int old_stop_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient_stop));
+	gtk_list_store_clear(gradient_stop_ids);
+	int stop_index = 0;
+	for (GList *l = g->extra_color_stops; l; l = l->next, stop_index++) {
+		GtkTreeIter iter;
+		gtk_list_store_append(gradient_stop_ids, &iter);
+		gtk_list_store_set(gradient_stop_ids, &iter,
+						   grStopColPixbuf, NULL,
+						   -1);
+		gradient_stop_update_image(stop_index);
+	}
+	if (old_stop_index >= 0 && old_stop_index < stop_index)
+		gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient_stop), old_stop_index);
+	else
+		gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient_stop), stop_index - 1);
+
+	gradient_updates_disabled = FALSE;
+	gradient_update_image(index);
+}
+
+//////// Gradient stops
+
+GtkWidget *create_gradient_stop_combo()
+{
+	GtkWidget *combo = gtk_combo_box_new_with_model(GTK_TREE_MODEL(gradient_stop_ids));
+	GtkCellRenderer *renderer = gtk_cell_renderer_pixbuf_new();
+	gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
+	gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "pixbuf", grStopColPixbuf, NULL);
+	return combo;
+}
+
+void gradient_stop_create_new()
+{
+	int g_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (g_index < 0)
+		return;
+
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)g_index)->data;
+	GradientConfigColorStop *stop = (GradientConfigColorStop *)calloc(1, sizeof(GradientConfigColorStop));
+	if (g->extra_color_stops)
+		memcpy(stop, g_list_last(g->extra_color_stops)->data, sizeof(GradientConfigColorStop));
+	else
+		memcpy(stop, &g->start_color, sizeof(GradientConfigColorStop));
+	g->extra_color_stops = g_list_append(g->extra_color_stops, stop);
+	GtkTreeIter iter;
+	gtk_list_store_append(gradient_stop_ids, &iter);
+	gtk_list_store_set(gradient_stop_ids, &iter,
+					   grStopColPixbuf, NULL,
+					   -1);
+
+	int stop_index = g_list_length(g->extra_color_stops) - 1;
+	gradient_stop_update_image(stop_index);
+	gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient_stop), stop_index);
+	current_gradient_stop_changed(0, 0);
+	gradient_update_image(g_index);
+	background_update_for_gradient(g_index);
+}
+
+void gradient_stop_duplicate(GtkWidget *widget, gpointer data)
+{
+	gradient_stop_create_new();
+}
+
+void gradient_stop_delete(GtkWidget *widget, gpointer data)
+{
+	int g_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (g_index < 0)
+		return;
+
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)g_index)->data;
+	if (!g->extra_color_stops)
+		return;
+
+	int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient_stop));
+	if (index < 0)
+		return;
+
+	GtkTreePath *path;
+	GtkTreeIter iter;
+
+	path = gtk_tree_path_new_from_indices(index, -1);
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_stop_ids), &iter, path);
+	gtk_tree_path_free(path);
+
+	g->extra_color_stops = g_list_remove(g->extra_color_stops, g_list_nth(g->extra_color_stops, (guint)index)->data);
+	gtk_list_store_remove(gradient_stop_ids, &iter);
+
+	if (index >= get_model_length(GTK_TREE_MODEL(gradient_stop_ids)))
+		index--;
+	gtk_combo_box_set_active(GTK_COMBO_BOX(current_gradient_stop), index);
+
+	gradient_update_image(g_index);
+	background_update_for_gradient(g_index);
+}
+
+void gradient_stop_update_image(int index)
+{
+	int g_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (g_index < 0)
+		return;
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)g_index)->data;
+	GradientConfigColorStop *stop = (GradientConfigColorStop *)g_list_nth(g->extra_color_stops, (guint)index)->data;
+
+	int w = 70;
+	int h = 30;
+	GdkPixmap *pixmap = gdk_pixmap_new(NULL, w, h, 24);
+
+	cairo_t *cr = gdk_cairo_create(pixmap);
+	cairo_set_source_rgba(cr, stop->color.rgb[0], stop->color.rgb[1], stop->color.rgb[2], stop->color.alpha);
+	cairo_rectangle(cr, 0, 0, w, h);
+	cairo_fill(cr);
+
+	GdkPixbuf *pixbuf = gdk_pixbuf_get_from_drawable(NULL, pixmap, gdk_colormap_get_system(), 0, 0, 0, 0, w, h);
+	if (pixmap)
+		g_object_unref(pixmap);
+
+	GtkTreePath *path;
+	GtkTreeIter iter;
+
+	path = gtk_tree_path_new_from_indices(index, -1);
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(gradient_stop_ids), &iter, path);
+	gtk_tree_path_free(path);
+
+	gtk_list_store_set(gradient_stop_ids, &iter,
+					   grStopColPixbuf, pixbuf,
+					   -1);
+	if (pixbuf)
+		g_object_unref(pixbuf);
+}
+
+void current_gradient_stop_changed(GtkWidget *widget, gpointer data)
+{
+	int g_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (g_index < 0)
+		return;
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)g_index)->data;
+
+	int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient_stop));
+	if (index < 0)
+		return;
+
+	GradientConfigColorStop *stop = (GradientConfigColorStop *)g_list_nth(g->extra_color_stops, (guint)index)->data;
+
+	gradient_updates_disabled = TRUE;
+
+	GdkColor color;
+	int opacity;
+
+	cairoColor2GdkColor(stop->color.rgb[0], stop->color.rgb[1], stop->color.rgb[2], &color);
+	opacity = stop->color.alpha * 65535;
+	gtk_color_button_set_color(GTK_COLOR_BUTTON(gradient_stop_color), &color);
+	gtk_color_button_set_alpha(GTK_COLOR_BUTTON(gradient_stop_color), opacity);
+
+	gtk_spin_button_set_value(GTK_SPIN_BUTTON(gradient_stop_offset), stop->offset * 100);
+
+	gradient_updates_disabled = FALSE;
+}
+
+void gradient_stop_update(GtkWidget *widget, gpointer data)
+{
+	if (gradient_updates_disabled)
+		return;
+
+	int g_index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient));
+	if (g_index < 0)
+		return;
+	GradientConfig *g = (GradientConfig *)g_list_nth(gradients, (guint)g_index)->data;
+
+	int index = gtk_combo_box_get_active(GTK_COMBO_BOX(current_gradient_stop));
+	if (index < 0)
+		return;
+
+	GradientConfigColorStop *stop = (GradientConfigColorStop *)g_list_nth(g->extra_color_stops, (guint)index)->data;
+
+	GdkColor color;
+	int opacity;
+
+	gtk_color_button_get_color(GTK_COLOR_BUTTON(gradient_stop_color), &color);
+	opacity = MIN(100, 0.5 + gtk_color_button_get_alpha(GTK_COLOR_BUTTON(gradient_stop_color)) * 100.0 / 0xffff);
+	gdkColor2CairoColor(color, &stop->color.rgb[0], &stop->color.rgb[1], &stop->color.rgb[2]);
+	stop->color.alpha = opacity / 100.0;
+
+	stop->offset = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gradient_stop_offset)) / 100.;
+
+	gradient_stop_update_image(index);
+	gradient_update_image(g_index);
+	background_update_for_gradient(g_index);
+}

src/tint2conf/gradient_gui.h

@@ -0,0 +1,47 @@
+#ifndef GRADIENT_GUI_H
+#define GRADIENT_GUI_H
+
+#include "gui.h"
+
+int gradient_index_safe(int index);
+void create_gradient(GtkWidget *parent);
+GtkWidget *create_gradient_combo();
+void gradient_duplicate(GtkWidget *widget, gpointer data);
+void gradient_delete(GtkWidget *widget, gpointer data);
+void gradient_update_image(int index);
+void gradient_update(GtkWidget *widget, gpointer data);
+void gradient_force_update();
+void current_gradient_changed(GtkWidget *widget, gpointer data);
+void background_update_for_gradient(int gradient_id);
+
+GtkWidget *create_gradient_stop_combo();
+void gradient_stop_duplicate(GtkWidget *widget, gpointer data);
+void gradient_stop_delete(GtkWidget *widget, gpointer data);
+void gradient_stop_update(GtkWidget *widget, gpointer data);
+void gradient_stop_update_image(int index);
+void current_gradient_stop_changed(GtkWidget *widget, gpointer data);
+
+typedef enum GradientConfigType {
+	GRADIENT_CONFIG_VERTICAL = 0,
+	GRADIENT_CONFIG_HORIZONTAL,
+	GRADIENT_CONFIG_RADIAL
+} GradientConfigType;
+
+typedef struct GradientConfigColorStop {
+	Color color;
+	// offset in 0-1
+	double offset;
+} GradientConfigColorStop;
+
+typedef struct GradientConfig {
+	GradientConfigType type;
+	GradientConfigColorStop start_color;
+	GradientConfigColorStop end_color;
+	// Each element is a GradientConfigColorStop
+	GList *extra_color_stops;
+} GradientConfig;
+
+void gradient_create_new(GradientConfigType t);
+void gradient_draw(cairo_t *c, GradientConfig *g, int w, int h, gboolean preserve);
+
+#endif

src/tint2conf/gui.h

@@ -0,0 +1,20 @@
+#include <limits.h>
+#include <stdlib.h>
+
+#include "main.h"
+#include "properties.h"
+#include "properties_rw.h"
+#include "../launcher/apps-common.h"
+#include "../launcher/icon-theme-common.h"
+#include "../util/common.h"
+#include "strnatcmp.h"
+
+#define ROW_SPACING 10
+#define COL_SPACING 8
+#define DEFAULT_HOR_SPACING 5
+
+gint compare_strings(gconstpointer a, gconstpointer b);
+void change_paragraph(GtkWidget *widget);
+int get_model_length(GtkTreeModel *model);
+void gdkColor2CairoColor(GdkColor color, double *red, double *green, double *blue);
+void cairoColor2GdkColor(double red, double green, double blue, GdkColor *color);

src/tint2conf/main.c

@@ -34,6 +34,7 @@ void refresh_theme(const char *given_path);
 void remove_theme(const char *given_path);
 static void theme_selection_changed(GtkWidget *treeview, gpointer userdata);
 static gchar *find_theme_in_system_dirs(const gchar *given_name);
+static void load_specific_themes(char **paths, int count);
 
 // ====== Utilities ======
 
@@ -166,6 +167,7 @@ static void viewRowActivated(GtkTreeView *tree_view, GtkTreePath *path, GtkTreeV
 
 static void select_first_theme();
 static void load_all_themes();
+static void reload_all_themes();
 
 // ====== Globals ======
 
@@ -225,12 +227,12 @@ int main(int argc, char **argv)
 	{
 		gchar *tint2_config_dir = g_build_filename(g_get_user_config_dir(), "tint2", NULL);
 		if (!g_file_test(tint2_config_dir, G_FILE_TEST_IS_DIR))
-			g_mkdir(tint2_config_dir, 0777);
+			g_mkdir(tint2_config_dir, 0700);
 		g_free(tint2_config_dir);
 	}
 
 	g_set_application_name(_("tint2conf"));
-	gtk_window_set_default_icon_name("taskbar");
+	gtk_window_set_default_icon_name("tint2conf");
 
 	// config file uses '.' as decimal separator
 	setlocale(LC_NUMERIC, "POSIX");
@@ -255,7 +257,7 @@ int main(int argc, char **argv)
 		 {"ThemeEdit", GTK_STOCK_PROPERTIES, _("_Edit theme..."), NULL, _("Edit the selected theme"), G_CALLBACK(edit_theme)},
 		 {"ThemeMakeDefault", GTK_STOCK_APPLY, _("_Make default"), NULL, _("Replace the default theme with the selected one"), G_CALLBACK(make_selected_theme_default)},
 		 {"ThemeRefresh", GTK_STOCK_REFRESH, _("Refresh"), NULL, _("Redraw the selected theme"), G_CALLBACK(refresh_current_theme)},
-		 {"RefreshAll", GTK_STOCK_REFRESH, _("Refresh all"), NULL, _("Redraw all themes"), G_CALLBACK(load_all_themes)},
+		 {"RefreshAll", GTK_STOCK_REFRESH, _("Refresh all"), NULL, _("Redraw all themes"), G_CALLBACK(reload_all_themes)},
 		 {"Quit", GTK_STOCK_QUIT, _("_Quit"), "<control>Q", _("Quit"), G_CALLBACK(gtk_main_quit)},
 		 {"HelpMenu", NULL, _("_Help"), NULL, NULL, NULL},
 		 {"HelpAbout", GTK_STOCK_ABOUT, _("_About"), "<Control>A", _("About"), G_CALLBACK(menuAbout)}};
@@ -304,9 +306,15 @@ int main(int argc, char **argv)
 
 	// load themes
 	load_all_themes();
+	argc--, argv++;
+	if (argc > 0) {
+		load_specific_themes(argv, argc);
+		g_timeout_add(SNAPSHOT_TICK, (GSourceFunc)edit_theme, NULL);
+	}
 
 	gtk_widget_show_all(g_window);
 	gtk_main();
+
 	return 0;
 }
 
@@ -326,10 +334,10 @@ static void menuAbout()
 						  "version",
 						  VERSION_STRING,
 						  "copyright",
-						  _("Copyright 2009-2015 tint2 team\nTint2 License GNU GPL version 2\nTintwizard License GNU "
+						  _("Copyright 2009-2017 tint2 team\nTint2 License GNU GPL version 2\nTintwizard License GNU "
 							"GPL version 3"),
 						  "logo-icon-name",
-						  "taskbar",
+						  "tint2conf",
 						  "authors",
 						  authors,
 						  /* Translators: translate "translator-credits" as your name to have it appear in the credits
@@ -830,6 +838,71 @@ static void load_all_themes()
 	}
 }
 
+static void reload_all_themes()
+{
+	ensure_default_theme_exists();
+
+	gtk_list_store_clear(GTK_LIST_STORE(theme_list_store));
+	theme_selection_changed(NULL, NULL);
+
+	gboolean found_themes = FALSE;
+	if (load_user_themes())
+		found_themes = TRUE;
+	if (load_system_themes())
+		found_themes = TRUE;
+
+	if (found_themes) {
+		select_first_theme();
+
+		GtkTreeIter iter;
+		GtkTreeModel *model;
+		gboolean have_iter;
+
+		model = gtk_tree_view_get_model(GTK_TREE_VIEW(g_theme_view));
+		have_iter = gtk_tree_model_get_iter_first(model, &iter);
+		while (have_iter) {
+			gtk_list_store_set(theme_list_store, &iter, COL_SNAPSHOT, NULL, COL_FORCE_REFRESH, TRUE, -1);
+			have_iter = gtk_tree_model_iter_next(model, &iter);
+		}
+
+		g_timeout_add(SNAPSHOT_TICK, (GSourceFunc)update_snapshot, NULL);
+	}
+}
+
+static void load_specific_themes(char **paths, int count)
+{
+	ensure_default_theme_exists();
+
+	gboolean found_themes = FALSE;
+	while (count > 0) {
+		// Load configs
+		const char *file_name = paths[0];
+		paths++, count--;
+		if (g_file_test(file_name, G_FILE_TEST_IS_REGULAR) || g_file_test(file_name, G_FILE_TEST_IS_SYMLINK) ) {
+			theme_list_append(file_name);
+			if (!found_themes) {
+				select_theme(file_name);
+				found_themes = TRUE;
+			}
+		}
+	}
+
+	if (found_themes) {
+		GtkTreeIter iter;
+		GtkTreeModel *model;
+		gboolean have_iter;
+
+		model = gtk_tree_view_get_model(GTK_TREE_VIEW(g_theme_view));
+		have_iter = gtk_tree_model_get_iter_first(model, &iter);
+		while (have_iter) {
+			gtk_list_store_set(theme_list_store, &iter, COL_SNAPSHOT, NULL, -1);
+			have_iter = gtk_tree_model_iter_next(model, &iter);
+		}
+
+		g_timeout_add(SNAPSHOT_TICK, (GSourceFunc)update_snapshot, NULL);
+	}
+}
+
 void refresh_current_theme()
 {
 	GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(g_theme_view));

src/tint2conf/md4.c

@@ -0,0 +1,274 @@
+/*
+ * Cryptographic API.
+ *
+ * MD4 Message Digest Algorithm (RFC1320).
+ *
+ * Implementation derived from Andrew Tridgell and Steve French's
+ * CIFS MD4 implementation, and the cryptoapi implementation
+ * originally based on the public domain implementation written
+ * by Colin Plumb in 1993.
+ *
+ * Copyright (c) Andrew Tridgell 1997-1998.
+ * Modified by Steve French (sfrench@us.ibm.com) 2002
+ * Copyright (c) Cryptoapi developers.
+ * Copyright (c) 2002 David S. Miller (davem@redhat.com)
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <arpa/inet.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+typedef u_int8_t u8;
+typedef u_int32_t u32;
+typedef u_int64_t u64;
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#define shash_desc md4_ctx
+#define shash_desc_ctx(x) (x)
+
+#define MD4_DIGEST_SIZE		16
+#define MD4_HMAC_BLOCK_SIZE	64
+#define MD4_BLOCK_WORDS		16
+#define MD4_HASH_WORDS		4
+
+struct md4_ctx {
+	u32 hash[MD4_HASH_WORDS];
+	u32 block[MD4_BLOCK_WORDS];
+	u64 byte_count;
+};
+
+static inline u32 lshift(u32 x, unsigned int s)
+{
+	x &= 0xFFFFFFFF;
+	return ((x << s) & 0xFFFFFFFF) | (x >> (32 - s));
+}
+
+static inline u32 F(u32 x, u32 y, u32 z)
+{
+	return (x & y) | ((~x) & z);
+}
+
+static inline u32 G(u32 x, u32 y, u32 z)
+{
+	return (x & y) | (x & z) | (y & z);
+}
+
+static inline u32 H(u32 x, u32 y, u32 z)
+{
+	return x ^ y ^ z;
+}
+
+#define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s))
+#define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (u32)0x5A827999,s))
+#define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (u32)0x6ED9EBA1,s))
+
+/* XXX: this stuff can be optimized */
+static inline void le32_to_cpu_array(u32 *buf, unsigned int words)
+{
+	while (words--) {
+		*buf = ntohl(*buf);
+		buf++;
+	}
+}
+
+static inline void cpu_to_le32_array(u32 *buf, unsigned int words)
+{
+	while (words--) {
+		*buf = htonl(*buf);
+		buf++;
+	}
+}
+
+static void md4_transform(u32 *hash, u32 const *in)
+{
+	u32 a, b, c, d;
+
+	a = hash[0];
+	b = hash[1];
+	c = hash[2];
+	d = hash[3];
+
+	ROUND1(a, b, c, d, in[0], 3);
+	ROUND1(d, a, b, c, in[1], 7);
+	ROUND1(c, d, a, b, in[2], 11);
+	ROUND1(b, c, d, a, in[3], 19);
+	ROUND1(a, b, c, d, in[4], 3);
+	ROUND1(d, a, b, c, in[5], 7);
+	ROUND1(c, d, a, b, in[6], 11);
+	ROUND1(b, c, d, a, in[7], 19);
+	ROUND1(a, b, c, d, in[8], 3);
+	ROUND1(d, a, b, c, in[9], 7);
+	ROUND1(c, d, a, b, in[10], 11);
+	ROUND1(b, c, d, a, in[11], 19);
+	ROUND1(a, b, c, d, in[12], 3);
+	ROUND1(d, a, b, c, in[13], 7);
+	ROUND1(c, d, a, b, in[14], 11);
+	ROUND1(b, c, d, a, in[15], 19);
+
+	ROUND2(a, b, c, d,in[ 0], 3);
+	ROUND2(d, a, b, c, in[4], 5);
+	ROUND2(c, d, a, b, in[8], 9);
+	ROUND2(b, c, d, a, in[12], 13);
+	ROUND2(a, b, c, d, in[1], 3);
+	ROUND2(d, a, b, c, in[5], 5);
+	ROUND2(c, d, a, b, in[9], 9);
+	ROUND2(b, c, d, a, in[13], 13);
+	ROUND2(a, b, c, d, in[2], 3);
+	ROUND2(d, a, b, c, in[6], 5);
+	ROUND2(c, d, a, b, in[10], 9);
+	ROUND2(b, c, d, a, in[14], 13);
+	ROUND2(a, b, c, d, in[3], 3);
+	ROUND2(d, a, b, c, in[7], 5);
+	ROUND2(c, d, a, b, in[11], 9);
+	ROUND2(b, c, d, a, in[15], 13);
+
+	ROUND3(a, b, c, d,in[ 0], 3);
+	ROUND3(d, a, b, c, in[8], 9);
+	ROUND3(c, d, a, b, in[4], 11);
+	ROUND3(b, c, d, a, in[12], 15);
+	ROUND3(a, b, c, d, in[2], 3);
+	ROUND3(d, a, b, c, in[10], 9);
+	ROUND3(c, d, a, b, in[6], 11);
+	ROUND3(b, c, d, a, in[14], 15);
+	ROUND3(a, b, c, d, in[1], 3);
+	ROUND3(d, a, b, c, in[9], 9);
+	ROUND3(c, d, a, b, in[5], 11);
+	ROUND3(b, c, d, a, in[13], 15);
+	ROUND3(a, b, c, d, in[3], 3);
+	ROUND3(d, a, b, c, in[11], 9);
+	ROUND3(c, d, a, b, in[7], 11);
+	ROUND3(b, c, d, a, in[15], 15);
+
+	hash[0] += a;
+	hash[1] += b;
+	hash[2] += c;
+	hash[3] += d;
+}
+
+static inline void md4_transform_helper(struct md4_ctx *ctx)
+{
+	le32_to_cpu_array(ctx->block, ARRAY_SIZE(ctx->block));
+	md4_transform(ctx->hash, ctx->block);
+}
+
+static int md4_init(struct shash_desc *desc)
+{
+	struct md4_ctx *mctx = shash_desc_ctx(desc);
+
+	mctx->hash[0] = 0x67452301;
+	mctx->hash[1] = 0xefcdab89;
+	mctx->hash[2] = 0x98badcfe;
+	mctx->hash[3] = 0x10325476;
+	mctx->byte_count = 0;
+
+	return 0;
+}
+
+static int md4_update(struct shash_desc *desc, const u8 *data, unsigned int len)
+{
+	struct md4_ctx *mctx = shash_desc_ctx(desc);
+	const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
+
+	mctx->byte_count += len;
+
+	if (avail > len) {
+		memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
+			   data, len);
+		return 0;
+	}
+
+	memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
+		   data, avail);
+
+	md4_transform_helper(mctx);
+	data += avail;
+	len -= avail;
+
+	while (len >= sizeof(mctx->block)) {
+		memcpy(mctx->block, data, sizeof(mctx->block));
+		md4_transform_helper(mctx);
+		data += sizeof(mctx->block);
+		len -= sizeof(mctx->block);
+	}
+
+	memcpy(mctx->block, data, len);
+
+	return 0;
+}
+
+static int md4_final(struct shash_desc *desc, u8 *out)
+{
+	struct md4_ctx *mctx = shash_desc_ctx(desc);
+	const unsigned int offset = mctx->byte_count & 0x3f;
+	char *p = (char *)mctx->block + offset;
+	int padding = 56 - (offset + 1);
+
+	*p++ = 0x80;
+	if (padding < 0) {
+		memset(p, 0x00, padding + sizeof (u64));
+		md4_transform_helper(mctx);
+		p = (char *)mctx->block;
+		padding = 56;
+	}
+
+	memset(p, 0, padding);
+	mctx->block[14] = mctx->byte_count << 3;
+	mctx->block[15] = mctx->byte_count >> 29;
+	le32_to_cpu_array(mctx->block, (sizeof(mctx->block) -
+					  sizeof(u64)) / sizeof(u32));
+	md4_transform(mctx->hash, mctx->block);
+	cpu_to_le32_array(mctx->hash, ARRAY_SIZE(mctx->hash));
+	memcpy(out, mctx->hash, sizeof(mctx->hash));
+	memset(mctx, 0, sizeof(*mctx));
+
+	return 0;
+}
+
+static char to_hex(u8 v)
+{
+	v = v & 0xf;
+	if (v < 0xa)
+		return '0' + v;
+	return 'a' + v - 0xa;
+}
+
+void md4hexf(const char *path, char *hash)
+{
+	struct md4_ctx mctx;
+	md4_init(&mctx);
+
+	int fd = open(path, O_RDONLY);
+	if (fd >= 0) {
+		u8 buffer[MD4_HMAC_BLOCK_SIZE];
+		while (1) {
+			ssize_t count = read(fd, buffer, sizeof(buffer));
+			if (count <= 0)
+				break;
+			md4_update(&mctx, buffer, (unsigned)count);
+		}
+		close(fd);
+	}
+
+	u8 out[MD4_DIGEST_SIZE];
+	md4_final(&mctx, out);
+
+	for (int i = 0; i < MD4_DIGEST_SIZE; i++) {
+		hash[2*i+0] = to_hex(out[i] >> 4);
+		hash[2*i+1] = to_hex(out[i] & 0xf);
+	}
+	hash[2*MD4_DIGEST_SIZE] = 0;
+}

src/tint2conf/md4.h

@@ -0,0 +1,7 @@
+#ifndef MD4_H
+#define MD4_H
+
+#define MD4_HEX_SIZE 33
+void md4hexf(const char *path, char *hash);
+
+#endif

src/tint2conf/po/CMakeLists.txt

@@ -11,7 +11,7 @@ if (GETTEXT_FOUND)
         foreach(LANG ${LANGUAGES})
             GETTEXT_PROCESS_PO_FILES(${LANG} ALL PO_FILES ${LANG}.po)
             install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${LANG}.gmo"
-                    DESTINATION "${CMAKE_INSTALL_PREFIX}/${DATADIR}/locale/${LANG}/LC_MESSAGES"
+                    DESTINATION "${CMAKE_INSTALL_LOCALEDIR}/${LANG}/LC_MESSAGES"
                     RENAME "${GETTEXT_PACKAGE}.mo")
             endforeach ()
     endif()

src/tint2conf/properties.h

@@ -17,7 +17,7 @@ extern GtkWidget *panel_window_name, *disable_transparency;
 extern GtkWidget *panel_mouse_effects;
 extern GtkWidget *mouse_hover_icon_opacity, *mouse_hover_icon_saturation, *mouse_hover_icon_brightness;
 extern GtkWidget *mouse_pressed_icon_opacity, *mouse_pressed_icon_saturation, *mouse_pressed_icon_brightness;
-extern GtkWidget *panel_primary_monitor_first;
+extern GtkWidget *panel_primary_monitor_first, *panel_shrink;
 
 enum {
 	itemsColName = 0,
@@ -57,6 +57,7 @@ extern GtkWidget *taskbar_name_font, *taskbar_name_font_set;
 extern GtkWidget *taskbar_active_background, *taskbar_inactive_background;
 extern GtkWidget *taskbar_name_active_background, *taskbar_name_inactive_background;
 extern GtkWidget *taskbar_distribute_size, *taskbar_sort_order, *taskbar_alignment, *taskbar_always_show_all_desktop_tasks;
+extern GtkWidget *taskbar_hide_empty;
 
 // task
 extern GtkWidget *task_mouse_left, *task_mouse_middle, *task_mouse_right, *task_mouse_scroll_up, *task_mouse_scroll_down;
@@ -110,7 +111,7 @@ extern GtkWidget *ac_connected_cmd, *ac_disconnected_cmd;
 // systray
 extern GtkWidget *systray_icon_order, *systray_padding_x, *systray_padding_y, *systray_spacing;
 extern GtkWidget *systray_icon_size, *systray_icon_opacity, *systray_icon_saturation, *systray_icon_brightness;
-extern GtkWidget *systray_background, *systray_monitor;
+extern GtkWidget *systray_background, *systray_monitor, *systray_name_filter;
 
 // tooltip
 extern GtkWidget *tooltip_padding_x, *tooltip_padding_y, *tooltip_font, *tooltip_font_set, *tooltip_font_color;
@@ -118,6 +119,22 @@ extern GtkWidget *tooltip_task_show, *tooltip_show_after, *tooltip_hide_after;
 extern GtkWidget *clock_format_tooltip, *clock_tmz_tooltip;
 extern GtkWidget *tooltip_background;
 
+// Separator
+typedef struct Separator {
+	char name[256];
+	GtkWidget *container;
+	GtkWidget *page_separator;
+	GtkWidget *page_label;
+	GtkWidget *separator_background;
+	GtkWidget *separator_color;
+	GtkWidget *separator_style;
+	GtkWidget *separator_size;
+	GtkWidget *separator_padding_x;
+	GtkWidget *separator_padding_y;
+} Separator;
+
+extern GArray *separators;
+
 // Executor
 typedef struct Executor {
 	char name[256];
@@ -168,6 +185,7 @@ enum {
 	bgColFillOpacity,
 	bgColBorderColor,
 	bgColBorderOpacity,
+	bgColGradientId,
 	bgColBorderWidth,
 	bgColCornerRadius,
 	bgColText,
@@ -175,10 +193,12 @@ enum {
 	bgColFillOpacityOver,
 	bgColBorderColorOver,
 	bgColBorderOpacityOver,
+	bgColGradientIdOver,
 	bgColFillColorPress,
 	bgColFillOpacityPress,
 	bgColBorderColorPress,
 	bgColBorderOpacityPress,
+	bgColGradientIdPress,
     bgColBorderSidesTop,
     bgColBorderSidesBottom,
     bgColBorderSidesLeft,
@@ -190,10 +210,13 @@ extern GtkListStore *backgrounds;
 extern GtkWidget *current_background,
 		  *background_fill_color,
 		  *background_border_color,
+		  *background_gradient,
 		  *background_fill_color_over,
 		  *background_border_color_over,
+		  *background_gradient_over,
 		  *background_fill_color_press,
 		  *background_border_color_press,
+		  *background_gradient_press,
 		  *background_border_width,
           *background_border_sides_top,
           *background_border_sides_bottom,
@@ -201,12 +224,41 @@ extern GtkWidget *current_background,
           *background_border_sides_right,
 		  *background_corner_radius;
 
+// gradients
+enum {
+	grColPixbuf = 0,
+	grColId,
+	grColText,
+	grNumCols
+};
+
+// gradient color stops
+enum {
+	grStopColPixbuf = 0,
+	grStopNumCols
+};
+extern GtkListStore *gradient_ids, *gradient_stop_ids;
+extern GList *gradients;
+
+extern GtkWidget *current_gradient,
+	*gradient_combo_type,
+	*gradient_start_color,
+	*gradient_end_color,
+	*current_gradient_stop,
+	*gradient_stop_color,
+	*gradient_stop_offset;
+
 void background_create_new();
 void background_force_update();
 int background_index_safe(int index);
 
 GtkWidget *create_properties();
 
+void separator_create_new();
+Separator *separator_get_last();
+void separator_remove(int i);
+void separator_update_indices();
+
 void execp_create_new();
 Executor *execp_get_last();
 void execp_remove(int i);
@@ -216,4 +268,6 @@ void create_please_wait(GtkWindow *parent);
 void process_events();
 void destroy_please_wait();
 
+void hex2gdk(char *hex, GdkColor *color);
+
 #endif

src/tint2conf/theme_view.c

@@ -22,6 +22,7 @@
 #include "strnatcmp.h"
 #include "theme_view.h"
 #include "common.h"
+#include "md4.h"
 
 // The data columns that we export via the tree model interface
 GtkWidget *g_theme_view;
@@ -37,7 +38,7 @@ GtkWidget *create_view()
 	GtkCellRenderer *renderer;
 
 	theme_list_store =
-		gtk_list_store_new(NB_COL, G_TYPE_STRING, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_INT, G_TYPE_INT);
+		gtk_list_store_new(NB_COL, G_TYPE_STRING, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_INT, G_TYPE_INT, G_TYPE_BOOLEAN);
 
 	GtkWidget *view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(theme_list_store));
 	gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);
@@ -147,13 +148,20 @@ void theme_list_append(const gchar *path)
 	g_free(dir);
 
 	gchar *display_name = g_strdup_printf("%s\n(%s)", name, suffix);
-	gtk_list_store_set(theme_list_store, &iter, COL_THEME_FILE, path, COL_THEME_NAME, display_name, -1);
+	gtk_list_store_set(theme_list_store, &iter, COL_THEME_FILE, path, COL_THEME_NAME, display_name, COL_FORCE_REFRESH, FALSE, -1);
 	g_free(display_name);
 	g_free(suffix);
 }
 
 gboolean update_snapshot()
 {
+	{
+		gchar *tint2_cache_dir = g_build_filename(g_get_user_cache_dir(), "tint2", NULL);
+		if (!g_file_test(tint2_cache_dir, G_FILE_TEST_IS_DIR))
+			g_mkdir(tint2_cache_dir, 0700);
+		g_free(tint2_cache_dir);
+	}
+
 	const gint PADDING = 20;
 
 	GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(g_theme_view));
@@ -162,19 +170,7 @@ gboolean update_snapshot()
 	gboolean have_iter;
 
 	int num_updates = 0;
-	have_iter = gtk_tree_model_get_iter_first(model, &iter);
-	while (have_iter) {
-		GdkPixbuf *pixbuf;
-		gtk_tree_model_get(model, &iter, COL_SNAPSHOT, &pixbuf, -1);
-		if (pixbuf)
-			g_object_unref(pixbuf);
-		else
-			num_updates++;
-		have_iter = gtk_tree_model_iter_next(model, &iter);
-	}
-	gboolean need_pls_wait = num_updates > 3;
-	if (need_pls_wait)
-		create_please_wait(GTK_WINDOW(g_window));
+	gboolean need_pls_wait = FALSE;
 
 	have_iter = gtk_tree_model_get_iter_first(model, &iter);
 	while (have_iter) {
@@ -186,27 +182,30 @@ gboolean update_snapshot()
 			continue;
 		}
 
-		// build panel's snapshot
 		gchar *path;
-		gtk_tree_model_get(model, &iter, COL_THEME_FILE, &path, -1);
+		gboolean force_refresh;
+		gtk_tree_model_get(model, &iter, COL_THEME_FILE, &path, COL_FORCE_REFRESH, &force_refresh, -1);
 
-		char fname[128];
-		sprintf(fname, "tint2-%d.jpg", (int)getpid());
+		char hash[MD4_HEX_SIZE + 4];
+		md4hexf(path, hash);
+		strcat(hash, ".png");
 
-		gchar *snap = g_build_filename(g_get_tmp_dir(), fname, NULL);
-		g_remove(snap);
-
-		gchar *cmd = g_strdup_printf("tint2 -c \'%s\' -s \'%s\' 1>/dev/null 2>/dev/null", path, snap);
-		if (system(cmd) == 0) {
-			// load
-			pixbuf = gdk_pixbuf_new_from_file(snap, NULL);
-			if (pixbuf == NULL) {
-				printf("snapshot NULL : %s\n", cmd);
+		gchar *snap = g_build_filename(g_get_user_cache_dir(), "tint2", hash, NULL);
+		pixbuf = force_refresh ? NULL : gdk_pixbuf_new_from_file(snap, NULL);
+		if (!pixbuf) {
+			gchar *cmd = g_strdup_printf("tint2 -c \'%s\' -s \'%s\' 1>/dev/null 2>/dev/null", path, snap);
+			num_updates++;
+			if (num_updates > 3 && !need_pls_wait) {
+				need_pls_wait = TRUE;
+				create_please_wait(GTK_WINDOW(g_window));
 			}
+			if (system(cmd) == 0) {
+				// load
+				pixbuf = gdk_pixbuf_new_from_file(snap, NULL);
+			}
+			g_free(cmd);
 		}
-		g_free(cmd);
 
-		g_remove(snap);
 		g_free(snap);
 		g_free(path);
 
@@ -218,6 +217,8 @@ gboolean update_snapshot()
 						   gdk_pixbuf_get_width(pixbuf) + PADDING,
 						   COL_HEIGHT,
 						   gdk_pixbuf_get_height(pixbuf) + PADDING,
+						   COL_FORCE_REFRESH,
+						   FALSE,
 						   -1);
 		if (pixbuf)
 			g_object_unref(pixbuf);

src/tint2conf/theme_view.h

@@ -10,6 +10,7 @@ enum { COL_THEME_FILE = 0,
 	   COL_SNAPSHOT,
 	   COL_WIDTH,
 	   COL_HEIGHT,
+	   COL_FORCE_REFRESH,
 	   NB_COL, };
 
 GtkWidget *create_view();

src/tint2conf/tint2conf.desktop

@@ -34,7 +34,7 @@ Name[nb]=Panelbehandler
 Name[nl]=Paneel Manager
 Name[nn]=Panelhandsamar
 Name[pa]=ਪੈਨਲ ਮੈਨੇਜਰ
-Name[pl]=Ustawienia panelu
+Name[pl]=Ustawienia panelu tint2
 Name[pt]=Gestor do Painel
 Name[pt_BR]=Gerenciador do painel
 Name[ro]=Manager de panouri
@@ -86,7 +86,7 @@ GenericName[nb]=Panelbehandler
 GenericName[nl]=Paneel Manager
 GenericName[nn]=Panelhandsamar
 GenericName[pa]=ਪੈਨਲ ਮੈਨੇਜਰ
-GenericName[pl]=Ustawienia panelu
+GenericName[pl]=Ustawienia panelu tint2
 GenericName[pt]=Gestor do Painel
 GenericName[pt_BR]=Gerenciador do painel
 GenericName[ro]=Manager de panouri
@@ -106,6 +106,7 @@ GenericName[zh_CN]=面板管理器
 GenericName[zh_TW]=面板管理程式
 
 Comment=Tool to configure the tint2 panel
+Comment[pl]=Narzędzie do konfiguracji panelu tint2 configure the tint2 panel
 Comment[ru]=Инструмент конфигурирования панели tint2
 
 Exec=tint2conf

src/tint2rc.c

@@ -0,0 +1,411 @@
+#include "tint2rc.h"
+
+unsigned char themes_tint2rc[] = {
+  0x23, 0x2d, 0x2d, 0x2d, 0x2d, 0x20, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61,
+  0x74, 0x65, 0x64, 0x20, 0x62, 0x79, 0x20, 0x74, 0x69, 0x6e, 0x74, 0x32,
+  0x63, 0x6f, 0x6e, 0x66, 0x20, 0x32, 0x36, 0x34, 0x31, 0x20, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x0a, 0x23, 0x20, 0x53, 0x65, 0x65, 0x20, 0x68, 0x74, 0x74,
+  0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x67, 0x69, 0x74, 0x6c, 0x61, 0x62, 0x2e,
+  0x63, 0x6f, 0x6d, 0x2f, 0x6f, 0x39, 0x30, 0x30, 0x30, 0x2f, 0x74, 0x69,
+  0x6e, 0x74, 0x32, 0x2f, 0x77, 0x69, 0x6b, 0x69, 0x73, 0x2f, 0x43, 0x6f,
+  0x6e, 0x66, 0x69, 0x67, 0x75, 0x72, 0x65, 0x20, 0x66, 0x6f, 0x72, 0x20,
+  0x0a, 0x23, 0x20, 0x66, 0x75, 0x6c, 0x6c, 0x20, 0x64, 0x6f, 0x63, 0x75,
+  0x6d, 0x65, 0x6e, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x6f, 0x66,
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+  0x6d, 0x65, 0x31, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x7a, 0x6f, 0x6e, 0x65,
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+  0x6d, 0x65, 0x7a, 0x6f, 0x6e, 0x65, 0x20, 0x3d, 0x20, 0x0a, 0x63, 0x6c,
+  0x6f, 0x63, 0x6b, 0x5f, 0x66, 0x6f, 0x6e, 0x74, 0x5f, 0x63, 0x6f, 0x6c,
+  0x6f, 0x72, 0x20, 0x3d, 0x20, 0x23, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
+  0x20, 0x31, 0x30, 0x30, 0x0a, 0x63, 0x6c, 0x6f, 0x63, 0x6b, 0x5f, 0x70,
+  0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x20, 0x3d, 0x20, 0x32, 0x20, 0x30,
+  0x0a, 0x63, 0x6c, 0x6f, 0x63, 0x6b, 0x5f, 0x62, 0x61, 0x63, 0x6b, 0x67,
+  0x72, 0x6f, 0x75, 0x6e, 0x64, 0x5f, 0x69, 0x64, 0x20, 0x3d, 0x20, 0x30,
+  0x0a, 0x63, 0x6c, 0x6f, 0x63, 0x6b, 0x5f, 0x74, 0x6f, 0x6f, 0x6c, 0x74,
+  0x69, 0x70, 0x20, 0x3d, 0x20, 0x0a, 0x63, 0x6c, 0x6f, 0x63, 0x6b, 0x5f,
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+  0x6c, 0x5f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x20, 0x3d, 0x20,
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+  0x6c, 0x5f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x20, 0x3d, 0x20,
+  0x0a, 0x0a, 0x23, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x2d, 0x2d, 0x0a, 0x23, 0x20, 0x42, 0x61, 0x74, 0x74, 0x65,
+  0x72, 0x79, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f, 0x74,
+  0x6f, 0x6f, 0x6c, 0x74, 0x69, 0x70, 0x20, 0x3d, 0x20, 0x31, 0x0a, 0x62,
+  0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x77, 0x5f, 0x73,
+  0x74, 0x61, 0x74, 0x75, 0x73, 0x20, 0x3d, 0x20, 0x31, 0x30, 0x0a, 0x62,
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+  0x73, 0x65, 0x6e, 0x64, 0x20, 0x22, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72,
+  0x79, 0x20, 0x6c, 0x6f, 0x77, 0x22, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65,
+  0x72, 0x79, 0x5f, 0x66, 0x6f, 0x6e, 0x74, 0x5f, 0x63, 0x6f, 0x6c, 0x6f,
+  0x72, 0x20, 0x3d, 0x20, 0x23, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x20,
+  0x31, 0x30, 0x30, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f,
+  0x70, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x20, 0x3d, 0x20, 0x31, 0x20,
+  0x30, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f, 0x62, 0x61,
+  0x63, 0x6b, 0x67, 0x72, 0x6f, 0x75, 0x6e, 0x64, 0x5f, 0x69, 0x64, 0x20,
+  0x3d, 0x20, 0x30, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f,
+  0x68, 0x69, 0x64, 0x65, 0x20, 0x3d, 0x20, 0x31, 0x30, 0x31, 0x0a, 0x62,
+  0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x63, 0x6c, 0x69, 0x63,
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+  0x3d, 0x20, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72, 0x79, 0x5f, 0x6d,
+  0x63, 0x6c, 0x69, 0x63, 0x6b, 0x5f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e,
+  0x64, 0x20, 0x3d, 0x20, 0x0a, 0x62, 0x61, 0x74, 0x74, 0x65, 0x72, 0x79,
+  0x5f, 0x75, 0x77, 0x68, 0x65, 0x65, 0x6c, 0x5f, 0x63, 0x6f, 0x6d, 0x6d,
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+  0x63, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x5f, 0x63, 0x6d,
+  0x64, 0x20, 0x3d, 0x20, 0x0a, 0x61, 0x63, 0x5f, 0x64, 0x69, 0x73, 0x63,
+  0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x5f, 0x63, 0x6d, 0x64,
+  0x20, 0x3d, 0x20, 0x0a, 0x0a, 0x23, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+  0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x0a, 0x23, 0x20, 0x54, 0x6f,
+  0x6f, 0x6c, 0x74, 0x69, 0x70, 0x0a, 0x74, 0x6f, 0x6f, 0x6c, 0x74, 0x69,
+  0x70, 0x5f, 0x73, 0x68, 0x6f, 0x77, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x6f,
+  0x75, 0x74, 0x20, 0x3d, 0x20, 0x30, 0x2e, 0x35, 0x0a, 0x74, 0x6f, 0x6f,
+  0x6c, 0x74, 0x69, 0x70, 0x5f, 0x68, 0x69, 0x64, 0x65, 0x5f, 0x74, 0x69,
+  0x6d, 0x65, 0x6f, 0x75, 0x74, 0x20, 0x3d, 0x20, 0x30, 0x2e, 0x31, 0x0a,
+  0x74, 0x6f, 0x6f, 0x6c, 0x74, 0x69, 0x70, 0x5f, 0x70, 0x61, 0x64, 0x64,
+  0x69, 0x6e, 0x67, 0x20, 0x3d, 0x20, 0x32, 0x20, 0x32, 0x0a, 0x74, 0x6f,
+  0x6f, 0x6c, 0x74, 0x69, 0x70, 0x5f, 0x62, 0x61, 0x63, 0x6b, 0x67, 0x72,
+  0x6f, 0x75, 0x6e, 0x64, 0x5f, 0x69, 0x64, 0x20, 0x3d, 0x20, 0x35, 0x0a,
+  0x74, 0x6f, 0x6f, 0x6c, 0x74, 0x69, 0x70, 0x5f, 0x66, 0x6f, 0x6e, 0x74,
+  0x5f, 0x63, 0x6f, 0x6c, 0x6f, 0x72, 0x20, 0x3d, 0x20, 0x23, 0x32, 0x32,
+  0x32, 0x32, 0x32, 0x32, 0x20, 0x31, 0x30, 0x30, 0x0a, 0x0a
+};
+unsigned int themes_tint2rc_len = 4870;

src/tint2rc.h

@@ -0,0 +1,10 @@
+#ifndef TINT2RC_H
+#define TINT2RC_H
+
+// Content of .c file generated with xxd from the vim package:
+// echo '#include "tint2rc.h"' > src/tint2rc.c && xxd -i themes/tint2rc >> src/tint2rc.c
+
+extern unsigned char themes_tint2rc[];
+extern unsigned int themes_tint2rc_len;
+
+#endif

src/util/area.c

@@ -17,10 +17,12 @@
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 **************************************************************************/
 
+#include <assert.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/Xatom.h>
 #include <X11/extensions/Xrender.h>
+#include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -215,38 +217,41 @@ void relayout_dynamic(Area *a, int level)
 	}
 }
 
+int compute_desired_size(Area *a)
+{
+	if (!a->on_screen)
+		return 0;
+	if (a->_compute_desired_size)
+		return a->_compute_desired_size(a);
+	if (a->size_mode == LAYOUT_FIXED)
+		fprintf(stderr, YELLOW "Area %s does not set desired size!" RESET "\n", a->name);
+	return container_compute_desired_size(a);
+}
+
+int container_compute_desired_size(Area *a)
+{
+	if (!a->on_screen)
+		return 0;
+	int result = 2 * a->paddingxlr + (panel_horizontal ? left_right_border_width(a) : top_bottom_border_width(a));
+	int children_count = 0;
+	for (GList *l = a->children; l != NULL; l = l->next) {
+		Area *child = (Area *)l->data;
+		if (child->on_screen) {
+			result += compute_desired_size(child);
+			children_count++;
+		}
+	}
+	if (children_count > 0)
+		result += (children_count - 1) * a->paddingx;
+	return result;
+}
+
 void relayout(Area *a)
 {
 	relayout_fixed(a);
 	relayout_dynamic(a, 1);
 }
 
-void draw_tree(Area *a)
-{
-	if (!a->on_screen)
-		return;
-
-	if (a->_redraw_needed) {
-		a->_redraw_needed = FALSE;
-		draw(a);
-	}
-
-	if (a->pix)
-		XCopyArea(server.display,
-		          a->pix,
-		          ((Panel *)a->panel)->temp_pmap,
-		          server.gc,
-		          0,
-		          0,
-		          a->width,
-		          a->height,
-		          a->posx,
-		          a->posy);
-
-	for (GList *l = a->children; l; l = l->next)
-		draw_tree((Area *)l->data);
-}
-
 int relayout_with_constraint(Area *a, int maximum_size)
 {
 	int fixed_children_count = 0;
@@ -355,13 +360,43 @@ void schedule_redraw(Area *a)
 
 	for (GList *l = a->children; l; l = l->next)
 		schedule_redraw((Area *)l->data);
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
+}
+
+void draw_tree(Area *a)
+{
+	if (!a->on_screen)
+		return;
+
+	if (a->_redraw_needed) {
+		a->_redraw_needed = FALSE;
+		draw(a);
+	}
+
+	if (a->pix)
+		XCopyArea(server.display,
+				  a->pix,
+				  ((Panel *)a->panel)->temp_pmap,
+				  server.gc,
+				  0,
+				  0,
+				  a->width,
+				  a->height,
+				  a->posx,
+				  a->posy);
+	else
+		fprintf(stderr, RED "%s %d: area %s has no pixmap!!!" RESET "\n", __FILE__, __LINE__, a->name);
+
+	for (GList *l = a->children; l; l = l->next)
+		draw_tree((Area *)l->data);
 }
 
 void hide(Area *a)
 {
 	Area *parent = (Area *)a->parent;
 
+	if (!a->on_screen)
+		return;
 	a->on_screen = FALSE;
 	if (parent)
 		parent->resize_needed = TRUE;
@@ -375,10 +410,29 @@ void show(Area *a)
 {
 	Area *parent = (Area *)a->parent;
 
+	if (a->on_screen)
+		return;
 	a->on_screen = TRUE;
 	if (parent)
 		parent->resize_needed = TRUE;
 	a->resize_needed = TRUE;
+	schedule_panel_redraw();
+}
+
+void update_dependent_gradients(Area *a)
+{
+	if (!a->on_screen)
+		return;
+	if (a->_changed) {
+		for (GList *l = a->dependent_gradients; l; l = l->next) {
+			GradientInstance *gi = (GradientInstance *)l->data;
+			update_gradient(gi);
+			if (gi->area != a)
+				schedule_redraw(gi->area);
+		}
+	}
+	for (GList *l = a->children; l; l = l->next)
+		update_dependent_gradients((Area *)l->data);
 }
 
 void draw(Area *a)
@@ -438,7 +492,7 @@ void draw(Area *a)
 
 void draw_background(Area *a, cairo_t *c)
 {
-	if (a->bg->fill_color.alpha > 0.0 ||
+	if ((a->bg->fill_color.alpha > 0.0) ||
 	    (panel_config.mouse_effects && (a->has_mouse_over_effect || a->has_mouse_press_effect))) {
 		if (a->mouse_state == MOUSE_OVER)
 			cairo_set_source_rgba(c,
@@ -468,6 +522,19 @@ void draw_background(Area *a, cairo_t *c)
 
 		cairo_fill(c);
 	}
+	for (GList *l = a->gradient_instances_by_state[a->mouse_state]; l; l = l->next) {
+		GradientInstance *gi = (GradientInstance *)l->data;
+		if (!gi->pattern)
+			update_gradient(gi);
+		cairo_set_source(c, gi->pattern);
+		draw_rect(c,
+		          left_border_width(a),
+		          top_border_width(a),
+		          a->width - left_right_border_width(a),
+		          a->height - top_bottom_border_width(a),
+		          a->bg->border.radius - a->bg->border.width / 1.571);
+		cairo_fill(c);
+	}
 
 	if (a->bg->border.width > 0) {
 		cairo_set_line_width(c, a->bg->border.width);
@@ -508,10 +575,12 @@ void remove_area(Area *a)
 	Area *area = (Area *)a;
 	Area *parent = (Area *)area->parent;
 
+	free_area_gradient_instances(a);
+
 	if (parent) {
 		parent->children = g_list_remove(parent->children, area);
 		parent->resize_needed = TRUE;
-		panel_refresh = TRUE;
+		schedule_panel_redraw();
 		schedule_redraw(parent);
 	}
 
@@ -529,7 +598,6 @@ void add_area(Area *a, Area *parent)
 		parent->children = g_list_append(parent->children, a);
 		parent->resize_needed = TRUE;
 		schedule_redraw(parent);
-		panel_refresh = TRUE;
 	}
 }
 
@@ -559,6 +627,7 @@ void free_area(Area *a)
 	if (mouse_over_area == a) {
 		mouse_over_area = NULL;
 	}
+	free_area_gradient_instances(a);
 }
 
 void mouse_over(Area *area, int pressed)
@@ -584,11 +653,10 @@ void mouse_over(Area *area, int pressed)
 	mouse_over_area = area;
 
 	mouse_over_area->mouse_state = new_state;
-	mouse_over_area->pix =
-	    mouse_over_area->pix_by_state[mouse_over_area->has_mouse_over_effect ? mouse_over_area->mouse_state : 0];
+	mouse_over_area->pix = mouse_over_area->pix_by_state[mouse_over_area->mouse_state];
 	if (!mouse_over_area->pix)
 		mouse_over_area->_redraw_needed = TRUE;
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 }
 
 void mouse_out()
@@ -596,11 +664,10 @@ void mouse_out()
 	if (!mouse_over_area)
 		return;
 	mouse_over_area->mouse_state = MOUSE_NORMAL;
-	mouse_over_area->pix =
-	    mouse_over_area->pix_by_state[mouse_over_area->has_mouse_over_effect ? mouse_over_area->mouse_state : 0];
+	mouse_over_area->pix = mouse_over_area->pix_by_state[mouse_over_area->mouse_state];
 	if (!mouse_over_area->pix)
 		mouse_over_area->_redraw_needed = TRUE;
-	panel_refresh = TRUE;
+	schedule_panel_redraw();
 	mouse_over_area = NULL;
 }
 
@@ -783,28 +850,29 @@ void area_dump_geometry(Area *area, int indent)
 		return;
 	}
 	fprintf(stderr,
-	        "%*sBox: x = %d, y = %d, w = %d, h = %d\n",
+			"%*sBox: x = %d, y = %d, w = %d, h = %d, desired size = %d\n",
 	        indent,
 	        "",
 	        area->posx,
 	        area->posy,
 	        area->width,
-	        area->height);
+			area->height,
+			compute_desired_size(area));
 	fprintf(stderr,
-			"%*sBorder: left = %d, right = %d, top = %d, bottom = %d\n",
-			indent,
-			"",
-			left_border_width(area),
-			right_border_width(area),
-			top_border_width(area),
-			bottom_border_width(area));
+	        "%*sBorder: left = %d, right = %d, top = %d, bottom = %d\n",
+	        indent,
+	        "",
+	        left_border_width(area),
+	        right_border_width(area),
+	        top_border_width(area),
+	        bottom_border_width(area));
 	fprintf(stderr,
-			"%*sPadding: left = right = %d, top = bottom = %d, spacing = %d\n",
-			indent,
-			"",
-			area->paddingxlr,
-			area->paddingy,
-			area->paddingx);
+	        "%*sPadding: left = right = %d, top = bottom = %d, spacing = %d\n",
+	        indent,
+	        "",
+	        area->paddingxlr,
+	        area->paddingy,
+	        area->paddingx);
 	if (area->_dump_geometry)
 		area->_dump_geometry(area, indent);
 	if (area->children) {
@@ -814,3 +882,256 @@ void area_dump_geometry(Area *area, int indent)
 			area_dump_geometry((Area *)l->data, indent);
 	}
 }
+
+Area *compute_element_area(Area *area, Element element)
+{
+	if (element == ELEMENT_SELF)
+		return area;
+	if (element == ELEMENT_PARENT)
+		return (Area *)area->parent;
+	if (element == ELEMENT_PANEL)
+		return (Area *)area->panel;
+	g_assert_not_reached();
+	return area;
+}
+
+void instantiate_gradient_offsets(GradientInstance *gi, GList *offsets)
+{
+	for (GList *l = offsets; l; l = l->next) {
+		Offset *offset = (Offset *)l->data;
+		if (!offset->constant) {
+			Area *element_area = compute_element_area(gi->area, offset->element);
+			element_area->dependent_gradients = g_list_append(element_area->dependent_gradients, gi);
+		}
+	}
+}
+
+void free_gradient_offsets(GradientInstance *gi, GList **offsets)
+{
+	for (GList *l = *offsets; l; l = l->next) {
+		Offset *offset = (Offset *)l->data;
+		if (!offset->constant) {
+			Area *element_area = compute_element_area(gi->area, offset->element);
+			element_area->dependent_gradients = g_list_remove_all(element_area->dependent_gradients, gi);
+		}
+	}
+}
+
+void instantiate_gradient_point(GradientInstance *gi, ControlPoint *control)
+{
+	instantiate_gradient_offsets(gi, control->offsets_x);
+	instantiate_gradient_offsets(gi, control->offsets_y);
+	instantiate_gradient_offsets(gi, control->offsets_r);
+}
+
+void free_gradient_instance_point(GradientInstance *gi, ControlPoint *control)
+{
+	free_gradient_offsets(gi, &control->offsets_x);
+	free_gradient_offsets(gi, &control->offsets_y);
+	free_gradient_offsets(gi, &control->offsets_r);
+}
+
+void instantiate_gradient(Area *area, GradientClass *g, GradientInstance *gi)
+{
+	g_assert_nonnull(area);
+	g_assert_nonnull(g);
+	gi->area = area;
+	gi->gradient_class = g;
+	instantiate_gradient_point(gi, &g->from);
+	instantiate_gradient_point(gi, &g->to);
+}
+
+void free_gradient_instance(GradientInstance *gi)
+{
+	if (gi->pattern) {
+		cairo_pattern_destroy(gi->pattern);
+		gi->pattern = NULL;
+	}
+	free_gradient_instance_point(gi, &gi->gradient_class->from);
+	free_gradient_instance_point(gi, &gi->gradient_class->to);
+	gi->gradient_class = NULL;
+}
+
+void instantiate_area_gradients(Area *area)
+{
+	if (debug_gradients)
+		fprintf(stderr, "Initializing gradients for area %s\n", area->name);
+	for (int i = 0; i < MOUSE_STATE_COUNT; i++) {
+		g_assert_null(area->gradient_instances_by_state[i]);
+		GradientClass *g = area->bg->gradients[i];
+		if (!g)
+			continue;
+		GradientInstance *gi = (GradientInstance *)calloc(1, sizeof(GradientInstance));
+		instantiate_gradient(area, g, gi);
+		area->gradient_instances_by_state[i] = g_list_append(area->gradient_instances_by_state[i], gi);
+	}
+}
+
+void free_area_gradient_instances(Area *area)
+{
+	if (debug_gradients)
+		fprintf(stderr, "Freeing gradients for area %s\n", area->name);
+	for (int i = 0; i < MOUSE_STATE_COUNT; i++) {
+		for (GList *l = area->gradient_instances_by_state[i]; l; l = l->next) {
+			GradientInstance *gi = (GradientInstance *)l->data;
+			free_gradient_instance(gi);
+		}
+		g_list_free_full(area->gradient_instances_by_state[i], free);
+		area->gradient_instances_by_state[i] = NULL;
+	}
+	g_assert_null(area->dependent_gradients);
+}
+
+double compute_control_point_offset(Area *area, Offset *offset)
+{
+	if (offset->constant)
+		return offset->constant_value;
+
+	Area *element_area = compute_element_area(area, offset->element);
+	Area *parent_area = ((Area *)area->parent);
+	g_assert_nonnull(element_area);
+	g_assert_nonnull(parent_area);
+
+	double width = element_area->width;
+	double height = element_area->height;
+	double radius = sqrt(element_area->width * element_area->width + element_area->height * element_area->height) / 2.0;
+
+	double left, top;
+	if (offset->element == ELEMENT_SELF) {
+		left = 0;
+		top = 0;
+	} else if (offset->element == ELEMENT_PARENT) {
+		left = parent_area->posx - area->posx;
+		top = parent_area->posy - area->posy;
+	} else if (offset->element == ELEMENT_PANEL) {
+		left = 0 - area->posx;
+		top = 0 - area->posy;
+	}
+
+	double right = left + width;
+	double bottom = top + height;
+	double center_x = left + 0.5 * width;
+	double center_y = top + 0.5 * height;
+
+	if (offset->variable == SIZE_WIDTH)
+		return width * offset->multiplier;
+	if (offset->variable == SIZE_HEIGHT)
+		return height * offset->multiplier;
+	if (offset->variable == SIZE_RADIUS)
+		return radius * offset->multiplier;
+	if (offset->variable == SIZE_LEFT)
+		return left * offset->multiplier;
+	if (offset->variable == SIZE_RIGHT)
+		return right * offset->multiplier;
+	if (offset->variable == SIZE_TOP)
+		return top * offset->multiplier;
+	if (offset->variable == SIZE_BOTTOM)
+		return bottom * offset->multiplier;
+	if (offset->variable == SIZE_CENTERX)
+		return center_x * offset->multiplier;
+	if (offset->variable == SIZE_CENTERY)
+		return center_y * offset->multiplier;
+
+	g_assert_not_reached();
+	return 0;
+}
+
+double compute_control_point_offsets(GradientInstance *gi, GList *offsets)
+{
+	double result = 0;
+	for (GList *l = offsets; l; l = l->next) {
+		Offset *offset = (Offset *)l->data;
+		result += compute_control_point_offset(gi->area, offset);
+	}
+	return result;
+}
+
+void compute_control_point(GradientInstance *gi, ControlPoint *control, double *x, double *y, double *r)
+{
+	*x = compute_control_point_offsets(gi, control->offsets_x);
+	*y = compute_control_point_offsets(gi, control->offsets_y);
+	*r = compute_control_point_offsets(gi, control->offsets_r);
+}
+
+void update_gradient(GradientInstance *gi)
+{
+	if (gi->pattern) {
+		return;
+		cairo_pattern_destroy(gi->pattern);
+		gi->pattern = NULL;
+	}
+	double from_x, from_y, from_r;
+	compute_control_point(gi, &gi->gradient_class->from, &from_x, &from_y, &from_r);
+	double to_x, to_y, to_r;
+	compute_control_point(gi, &gi->gradient_class->to, &to_x, &to_y, &to_r);
+	if (gi->gradient_class->type == GRADIENT_VERTICAL || gi->gradient_class->type == GRADIENT_HORIZONTAL) {
+		gi->pattern = cairo_pattern_create_linear(from_x, from_y, to_x, to_y);
+		if (debug_gradients)
+			fprintf(stderr,
+			        "Creating linear gradient for area %s: %f %f, %f %f\n",
+			        gi->area->name,
+			        from_x,
+			        from_y,
+			        to_x,
+			        to_y);
+	} else if (gi->gradient_class->type == GRADIENT_CENTERED) {
+		gi->pattern = cairo_pattern_create_radial(from_x, from_y, from_r, to_x, to_y, to_r);
+		if (debug_gradients)
+			fprintf(stderr,
+			        "Creating radial gradient for area %s: %f %f %f, %f %f %f\n",
+			        gi->area->name,
+			        from_x,
+			        from_y,
+			        from_r,
+			        to_x,
+			        to_y,
+			        to_r);
+	} else {
+		g_assert_not_reached();
+	}
+	if (debug_gradients)
+		fprintf(stderr,
+		        "Adding color stop at offset %f: %f %f %f %f\n",
+		        0.0,
+		        gi->gradient_class->start_color.rgb[0],
+		        gi->gradient_class->start_color.rgb[1],
+		        gi->gradient_class->start_color.rgb[2],
+		        gi->gradient_class->start_color.alpha);
+	cairo_pattern_add_color_stop_rgba(gi->pattern,
+	                                  0,
+	                                  gi->gradient_class->start_color.rgb[0],
+	                                  gi->gradient_class->start_color.rgb[1],
+	                                  gi->gradient_class->start_color.rgb[2],
+	                                  gi->gradient_class->start_color.alpha);
+	for (GList *l = gi->gradient_class->extra_color_stops; l; l = l->next) {
+		ColorStop *color_stop = (ColorStop *)l->data;
+		if (debug_gradients)
+			fprintf(stderr,
+			        "Adding color stop at offset %f: %f %f %f %f\n",
+			        color_stop->offset,
+			        color_stop->color.rgb[0],
+			        color_stop->color.rgb[1],
+			        color_stop->color.rgb[2],
+			        color_stop->color.alpha);
+		cairo_pattern_add_color_stop_rgba(gi->pattern,
+		                                  color_stop->offset,
+		                                  color_stop->color.rgb[0],
+		                                  color_stop->color.rgb[1],
+		                                  color_stop->color.rgb[2],
+		                                  color_stop->color.alpha);
+	}
+	if (debug_gradients)
+		fprintf(stderr,
+		        "Adding color stop at offset %f: %f %f %f %f\n",
+		        1.0,
+		        gi->gradient_class->end_color.rgb[0],
+		        gi->gradient_class->end_color.rgb[1],
+		        gi->gradient_class->end_color.rgb[2],
+		        gi->gradient_class->end_color.alpha);
+	cairo_pattern_add_color_stop_rgba(gi->pattern,
+	                                  1.0,
+	                                  gi->gradient_class->end_color.rgb[0],
+	                                  gi->gradient_class->end_color.rgb[1],
+	                                  gi->gradient_class->end_color.rgb[2],
+	                                  gi->gradient_class->end_color.alpha);
+}

src/util/area.h

@@ -11,6 +11,9 @@
 #include <cairo.h>
 #include <cairo-xlib.h>
 
+#include "color.h"
+#include "gradient.h"
+
 // DATA ORGANISATION
 //
 // Areas in tint2 are similar to widgets in a GUI.
@@ -117,13 +120,6 @@
 //   The caller takes ownership of the pointer.
 //   The Area's _get_tooltip_text member must point to this function.
 
-typedef struct Color {
-	// Values are in [0, 1], with 0 meaning no intensity.
-	double rgb[3];
-	// Values are in [0, 1], with 0 meaning fully transparent, 1 meaning fully opaque.
-	double alpha;
-} Color;
-
 typedef enum BorderMask {
 	BORDER_TOP     = 1 << 0,
 	BORDER_BOTTOM  = 1 << 1,
@@ -144,6 +140,8 @@ typedef struct Border {
 	int mask;
 } Border;
 
+typedef enum MouseState { MOUSE_NORMAL = 0, MOUSE_OVER = 1, MOUSE_DOWN = 2, MOUSE_STATE_COUNT } MouseState;
+
 typedef struct Background {
 	// Normal state
 	Color fill_color;
@@ -154,6 +152,8 @@ typedef struct Background {
 	// On mouse press
 	Color fill_color_pressed;
 	Color border_color_pressed;
+	// Pointer to a GradientClass or NULL, no ownership
+	GradientClass *gradients[MOUSE_STATE_COUNT];
 } Background;
 
 typedef enum Layout {
@@ -167,8 +167,6 @@ typedef enum Alignment {
 	ALIGN_RIGHT = 2,
 } Alignment;
 
-typedef enum MouseState { MOUSE_NORMAL = 0, MOUSE_OVER = 1, MOUSE_DOWN = 2, MOUSE_STATE_COUNT } MouseState;
-
 struct Panel;
 
 typedef struct Area {
@@ -176,7 +174,12 @@ typedef struct Area {
 	int posx, posy;
 	// Size, including borders
 	int width, height;
+	int old_width, old_height;
 	Background *bg;
+	// Each element is a GradientInstance attached to this Area (list can be empty)
+	GList *gradient_instances_by_state[MOUSE_STATE_COUNT];
+	// Each element is a GradientInstance that depends on this Area's geometry (position or size)
+	GList *dependent_gradients;
 	// List of children, each one a pointer to Area
 	GList *children;
 	// Pointer to the parent Area or NULL
@@ -219,6 +222,10 @@ typedef struct Area {
 	// Returns 1 if the new size is different than the previous size.
 	gboolean (*_resize)(void *obj);
 
+	// Called before resize, obj = pointer to the Area
+	// Returns the desired size of the Area
+	int (*_compute_desired_size)(void *obj);
+
 	// Implemented only to override the default layout algorithm for this widget.
 	// For example, if this widget is a cell in a table, its position and size should be computed here.
 	void (*_on_change_layout)(void *obj);
@@ -253,6 +260,9 @@ void relayout(Area *a);
 // If maximum_size > 0, it is an upper limit for the child size.
 int relayout_with_constraint(Area *a, int maximum_size);
 
+int compute_desired_size(Area *a);
+int container_compute_desired_size(Area *a);
+
 int left_border_width(Area *a);
 int right_border_width(Area *a);
 int left_right_border_width(Area *a);
@@ -309,9 +319,15 @@ gboolean area_is_under_mouse(void *obj, int x, int y);
 // they are outside the drawing area of the button.
 gboolean full_width_area_is_under_mouse(void *obj, int x, int y);
 
+void instantiate_area_gradients(Area *area);
+void free_area_gradient_instances(Area *area);
+
 void area_dump_geometry(Area *area, int indent);
 
 void mouse_over(Area *area, int pressed);
 void mouse_out();
 
+void update_gradient(GradientInstance *gi);
+void update_dependent_gradients(Area *a);
+
 #endif

src/util/color.c

@@ -0,0 +1,2 @@
+#include "color.h"
+

src/util/color.h

@@ -0,0 +1,11 @@
+#ifndef COLOR_H
+#define COLOR_H
+
+typedef struct Color {
+	// Values are in [0, 1], with 0 meaning no intensity.
+	double rgb[3];
+	// Values are in [0, 1], with 0 meaning fully transparent, 1 meaning fully opaque.
+	double alpha;
+} Color;
+
+#endif // COLOR_H

src/util/common.c

@@ -199,43 +199,44 @@ void get_color(char *hex, double *rgb)
 	rgb[2] = (b / 255.0);
 }
 
-void extract_values(const char *value, char **value1, char **value2, char **value3)
+void extract_values(const char *str, char **value1, char **value2, char **value3)
 {
-	char *b = 0, *c = 0;
-
-	if (*value1)
-		free(*value1);
-	if (*value2)
-		free(*value2);
-	if (*value3)
-		free(*value3);
-
-	if ((b = strchr(value, ' '))) {
-		b[0] = '\0';
-		b++;
-	} else {
-		*value2 = 0;
-		*value3 = 0;
-	}
-	*value1 = strdup(value);
-	g_strstrip(*value1);
-
-	if (b) {
-		if ((c = strchr(b, ' '))) {
-			c[0] = '\0';
-			c++;
-		} else {
-			c = 0;
-			*value3 = 0;
+	*value1 = NULL;
+	*value2 = NULL;
+	*value3 = NULL;
+	char **tokens = g_strsplit(str, " ", 3);
+	if (tokens[0]) {
+		*value1 = strdup(tokens[0]);
+		if (tokens[1]) {
+			*value2 = strdup(tokens[1]);
+			if (tokens[2]) {
+				*value3 = strdup(tokens[2]);
+			}
 		}
-		*value2 = strdup(b);
-		g_strstrip(*value2);
 	}
+	g_strfreev(tokens);
+}
 
-	if (c) {
-		*value3 = strdup(c);
-		g_strstrip(*value3);
+void extract_values_4(const char *str, char **value1, char **value2, char **value3, char **value4)
+{
+	*value1 = NULL;
+	*value2 = NULL;
+	*value3 = NULL;
+	*value4 = NULL;
+	char **tokens = g_strsplit(str, " ", 4);
+	if (tokens[0]) {
+		*value1 = strdup(tokens[0]);
+		if (tokens[1]) {
+			*value2 = strdup(tokens[1]);
+			if (tokens[2]) {
+				*value3 = strdup(tokens[2]);
+				if (tokens[3]) {
+					*value4 = strdup(tokens[3]);
+				}
+			}
+		}
 	}
+	g_strfreev(tokens);
 }
 
 void adjust_asb(DATA32 *data, int w, int h, float alpha_adjust, float satur_adjust, float bright_adjust)
@@ -448,9 +449,9 @@ Imlib_Image load_image(const char *path, int cached)
 	}
 	if (!image && g_str_has_suffix(path, ".svg")) {
 		char tmp_filename[128];
-		sprintf(tmp_filename, "/tmp/tint2-%d-XXXXXX.png", (int)getpid());
-		int fd = mkstemps(tmp_filename, 4);
-		if (fd) {
+		sprintf(tmp_filename, "/tmp/tint2-%d.png", (int)getpid());
+		int fd = open(tmp_filename, O_CREAT | O_EXCL, 0600);
+		if (fd >= 0) {
 			// We fork here because librsvg allocates memory like crazy
 			pid_t pid = fork();
 			if (pid == 0) {
@@ -468,6 +469,7 @@ Imlib_Image load_image(const char *path, int cached)
 				exit(0);
 			} else {
 				// Parent
+				close(fd);
 				waitpid(pid, 0, 0);
 				image = imlib_load_image_immediately_without_cache(tmp_filename);
 				unlink(tmp_filename);
@@ -617,7 +619,7 @@ void get_text_size2(PangoFontDescription *font,
 	XFreePixmap(server.display, pmap);
 }
 
-#if !GLIB_CHECK_VERSION(2, 33, 4)
+#if !GLIB_CHECK_VERSION(2, 34, 0)
 GList *g_list_copy_deep(GList *list, GCopyFunc func, gpointer user_data)
 {
 	list = g_list_copy(list);
@@ -638,7 +640,8 @@ GSList *load_locations_from_env(GSList *locations, const char *var, ...)
 	if (value) {
 		value = strdup(value);
 		char *p = value;
-		for (char *token = strsep(&value, ":"); token; token = strsep(&value, ":")) {
+		char *t;
+		for (char *token = strtok_r(value, ":", &t); token; token = strtok_r(NULL, ":", &t)) {
 			va_list ap;
 			va_start(ap, var);
 			for (const char *suffix = va_arg(ap, const char *); suffix; suffix = va_arg(ap, const char *)) {

src/util/common.h

@@ -51,6 +51,7 @@ void copy_file(const char *path_src, const char *path_dest);
 gboolean parse_line(const char *line, char **key, char **value);
 
 void extract_values(const char *value, char **value1, char **value2, char **value3);
+void extract_values_4(const char *value, char **value1, char **value2, char **value3, char **value4);
 
 // Executes a command in a shell.
 void tint_exec(const char *command);

src/util/gradient.c

@@ -0,0 +1,123 @@
+#include "gradient.h"
+
+#include <glib.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "common.h"
+
+gboolean read_double(const char *str, double *value)
+{
+	if (!str[0])
+		return FALSE;
+	char *end;
+	*value = strtod(str, &end);
+	if (end[0])
+		return FALSE;
+	return TRUE;
+}
+
+gboolean read_double_with_percent(const char *str, double *value)
+{
+	if (!str[0])
+		return FALSE;
+	char *end;
+	*value = strtod(str, &end);
+	if (end[0] == '%' && !end[1]) {
+		*value *= 0.01;
+		return TRUE;
+	}
+	if (end[0])
+		return FALSE;
+	return TRUE;
+}
+
+GradientType gradient_type_from_string(const char *str)
+{
+	if (g_str_equal(str, "horizontal"))
+		return GRADIENT_HORIZONTAL;
+	if (g_str_equal(str, "vertical"))
+		return GRADIENT_VERTICAL;
+	if (g_str_equal(str, "radial"))
+		return GRADIENT_CENTERED;
+	fprintf(stderr, RED "Invalid gradient type: %s" RESET "\n", str);
+	return GRADIENT_VERTICAL;
+}
+
+void init_gradient(GradientClass *g, GradientType type)
+{
+	memset(g, 0, sizeof(*g));
+	g->type = type;
+	if (g->type == GRADIENT_VERTICAL) {
+		Offset *offset_top = (Offset *)calloc(1, sizeof(Offset));
+		offset_top->constant = TRUE;
+		offset_top->constant_value = 0;
+		g->from.offsets_y = g_list_append(g->from.offsets_y, offset_top);
+		Offset *offset_bottom = (Offset *)calloc(1, sizeof(Offset));
+		offset_bottom->constant = FALSE;
+		offset_bottom->element = ELEMENT_SELF;
+		offset_bottom->variable = SIZE_HEIGHT;
+		offset_bottom->multiplier = 1.0;
+		g->to.offsets_y = g_list_append(g->to.offsets_y, offset_bottom);
+	} else if (g->type == GRADIENT_HORIZONTAL) {
+		Offset *offset_left = (Offset *)calloc(1, sizeof(Offset));
+		offset_left->constant = TRUE;
+		offset_left->constant_value = 0;
+		g->from.offsets_x = g_list_append(g->from.offsets_x, offset_left);
+		Offset *offset_right = (Offset *)calloc(1, sizeof(Offset));
+		offset_right->constant = FALSE;
+		offset_right->element = ELEMENT_SELF;
+		offset_right->variable = SIZE_WIDTH;
+		offset_right->multiplier = 1.0;
+		g->to.offsets_x = g_list_append(g->to.offsets_x, offset_right);
+	} else if (g->type == GRADIENT_CENTERED) {
+		// from
+		Offset *offset_center_x = (Offset *)calloc(1, sizeof(Offset));
+		offset_center_x->constant = FALSE;
+		offset_center_x->element = ELEMENT_SELF;
+		offset_center_x->variable = SIZE_CENTERX;
+		offset_center_x->multiplier = 1.0;
+		g->from.offsets_x = g_list_append(g->from.offsets_x, offset_center_x);
+		Offset *offset_center_y = (Offset *)calloc(1, sizeof(Offset));
+		offset_center_y->constant = FALSE;
+		offset_center_y->element = ELEMENT_SELF;
+		offset_center_y->variable = SIZE_CENTERY;
+		offset_center_y->multiplier = 1.0;
+		g->from.offsets_y = g_list_append(g->from.offsets_y, offset_center_y);
+		Offset *offset_center_r = (Offset *)calloc(1, sizeof(Offset));
+		offset_center_r->constant = TRUE;
+		offset_center_r->constant_value = 0;
+		g->from.offsets_r = g_list_append(g->from.offsets_r, offset_center_r);
+		// to
+		offset_center_x = (Offset *)calloc(1, sizeof(Offset));
+		offset_center_x->constant = FALSE;
+		offset_center_x->element = ELEMENT_SELF;
+		offset_center_x->variable = SIZE_CENTERX;
+		offset_center_x->multiplier = 1.0;
+		g->to.offsets_x = g_list_append(g->to.offsets_x, offset_center_x);
+		offset_center_y = (Offset *)calloc(1, sizeof(Offset));
+		offset_center_y->constant = FALSE;
+		offset_center_y->element = ELEMENT_SELF;
+		offset_center_y->variable = SIZE_CENTERY;
+		offset_center_y->multiplier = 1.0;
+		g->to.offsets_y = g_list_append(g->to.offsets_y, offset_center_y);
+		offset_center_r = (Offset *)calloc(1, sizeof(Offset));
+		offset_center_r->constant = FALSE;
+		offset_center_r->element = ELEMENT_SELF;
+		offset_center_r->variable = SIZE_RADIUS;
+		offset_center_r->multiplier = 1.0;
+		g->to.offsets_r = g_list_append(g->to.offsets_r, offset_center_r);
+	}
+}
+
+void cleanup_gradient(GradientClass *g)
+{
+	g_list_free_full(g->extra_color_stops, free);
+	g_list_free_full(g->from.offsets_x, free);
+	g_list_free_full(g->from.offsets_y, free);
+	g_list_free_full(g->from.offsets_r, free);
+	g_list_free_full(g->to.offsets_x, free);
+	g_list_free_full(g->to.offsets_y, free);
+	g_list_free_full(g->to.offsets_r, free);
+	bzero(g, sizeof(*g));
+}

src/util/gradient.h

@@ -0,0 +1,88 @@
+#ifndef GRADIENT_H
+#define GRADIENT_H
+
+#include <glib.h>
+#include <cairo.h>
+
+#include "color.h"
+
+//////////////////////////////////////////////////////////////////////
+// Gradient types read from config options, not associated to any area
+
+typedef enum GradientType {
+	GRADIENT_VERTICAL = 0,
+	GRADIENT_HORIZONTAL,
+	GRADIENT_CENTERED
+} GradientType;
+
+typedef struct ColorStop {
+	Color color;
+	// offset in 0-1
+	double offset;
+} ColorStop;
+
+typedef enum Element {
+	ELEMENT_SELF = 0,
+	ELEMENT_PARENT,
+	ELEMENT_PANEL
+} Element;
+
+typedef enum SizeVariable {
+	SIZE_WIDTH = 0,
+	SIZE_HEIGHT,
+	SIZE_RADIUS,
+	SIZE_LEFT,
+	SIZE_RIGHT,
+	SIZE_TOP,
+	SIZE_BOTTOM,
+	SIZE_CENTERX,
+	SIZE_CENTERY
+} SizeVariable;
+
+typedef struct Offset {
+	gboolean constant;
+	// if constant == true
+	double constant_value;
+	// else
+	Element element;
+	SizeVariable variable;
+	double multiplier;
+} Offset;
+
+typedef struct ControlPoint {
+	// Each element is an Offset
+	GList *offsets_x;
+	GList *offsets_y;
+	// Defined only for radial gradients
+	GList *offsets_r;
+} ControlPoint;
+
+typedef struct GradientClass {
+	GradientType type;
+	Color start_color;
+	Color end_color;
+	// Each element is a ColorStop
+	GList *extra_color_stops;
+	ControlPoint from;
+	ControlPoint to;
+} GradientClass;
+
+GradientType gradient_type_from_string(const char *str);
+void init_gradient(GradientClass *g, GradientType type);
+void cleanup_gradient(GradientClass *g);
+
+/////////////////////////////////////////
+// Gradient instances associated to Areas
+
+struct Area;
+typedef struct Area Area;
+
+typedef struct GradientInstance {
+	GradientClass *gradient_class;
+	Area *area;
+	cairo_pattern_t *pattern;
+} GradientInstance;
+
+extern gboolean debug_gradients;
+
+#endif // GRADIENT_H

test/acer-chromebook-c100pa/out.txt

@@ -0,0 +1,163 @@
+/sys/class/power_supply/bq27500-0/
+cat: /sys/class/power_supply/bq27500-0/: Is a directory
+/sys/class/power_supply/bq27500-0/temp
+236
+/sys/class/power_supply/bq27500-0/type
+Battery
+/sys/class/power_supply/bq27500-0/power_avg
+65324
+/sys/class/power_supply/bq27500-0/power
+cat: /sys/class/power_supply/bq27500-0/power: Is a directory
+/sys/class/power_supply/bq27500-0/power/control
+auto
+/sys/class/power_supply/bq27500-0/power/async
+disabled
+/sys/class/power_supply/bq27500-0/power/wakeup_abort_count
+0
+/sys/class/power_supply/bq27500-0/power/wakeup_active
+0
+/sys/class/power_supply/bq27500-0/power/wakeup_type
+unknown
+/sys/class/power_supply/bq27500-0/power/wakeup_total_time_ms
+46
+/sys/class/power_supply/bq27500-0/power/wakeup_active_count
+3
+/sys/class/power_supply/bq27500-0/power/runtime_enabled
+disabled
+/sys/class/power_supply/bq27500-0/power/runtime_active_kids
+0
+/sys/class/power_supply/bq27500-0/power/runtime_active_time
+0
+/sys/class/power_supply/bq27500-0/power/wakeup_max_time_ms
+16
+/sys/class/power_supply/bq27500-0/power/wakeup_count
+3
+/sys/class/power_supply/bq27500-0/power/wakeup_last_time_ms
+264291
+/sys/class/power_supply/bq27500-0/power/wakeup
+enabled
+/sys/class/power_supply/bq27500-0/power/autosuspend_delay_ms
+cat: /sys/class/power_supply/bq27500-0/power/autosuspend_delay_ms: Input/output error
+/sys/class/power_supply/bq27500-0/power/runtime_status
+unsupported
+/sys/class/power_supply/bq27500-0/power/runtime_usage
+0
+/sys/class/power_supply/bq27500-0/power/wakeup_expire_count
+0
+/sys/class/power_supply/bq27500-0/power/runtime_suspended_time
+0
+/sys/class/power_supply/bq27500-0/charge_full_design
+8180000
+/sys/class/power_supply/bq27500-0/current_now
+-498000
+/sys/class/power_supply/bq27500-0/charge_now
+7253000
+/sys/class/power_supply/bq27500-0/charge_full
+7323000
+/sys/class/power_supply/bq27500-0/device
+cat: /sys/class/power_supply/bq27500-0/device: Is a directory
+/sys/class/power_supply/bq27500-0/capacity
+98
+/sys/class/power_supply/bq27500-0/health
+Good
+/sys/class/power_supply/bq27500-0/subsystem
+cat: /sys/class/power_supply/bq27500-0/subsystem: Is a directory
+/sys/class/power_supply/bq27500-0/capacity_level
+Normal
+/sys/class/power_supply/bq27500-0/status
+Discharging
+/sys/class/power_supply/bq27500-0/voltage_now
+4260000
+/sys/class/power_supply/bq27500-0/uevent
+POWER_SUPPLY_NAME=bq27500-0
+POWER_SUPPLY_STATUS=Discharging
+POWER_SUPPLY_PRESENT=1
+POWER_SUPPLY_VOLTAGE_NOW=4260000
+POWER_SUPPLY_CURRENT_NOW=-498000
+POWER_SUPPLY_CAPACITY=98
+POWER_SUPPLY_CAPACITY_LEVEL=Normal
+POWER_SUPPLY_TEMP=236
+POWER_SUPPLY_TIME_TO_EMPTY_NOW=40980
+POWER_SUPPLY_TIME_TO_EMPTY_AVG=0
+POWER_SUPPLY_TIME_TO_FULL_NOW=441780
+POWER_SUPPLY_TECHNOLOGY=Li-ion
+POWER_SUPPLY_CHARGE_FULL=7323000
+POWER_SUPPLY_CHARGE_NOW=7253000
+POWER_SUPPLY_CHARGE_FULL_DESIGN=8180000
+POWER_SUPPLY_CYCLE_COUNT=46
+POWER_SUPPLY_ENERGY_NOW=7253000
+POWER_SUPPLY_POWER_AVG=65324
+POWER_SUPPLY_HEALTH=Good
+POWER_SUPPLY_MANUFACTURER=Texas Instruments
+POWER_SUPPLY_MODEL_NAME=C100-80
+/sys/class/power_supply/bq27500-0/energy_now
+7253000
+/sys/class/power_supply/bq27500-0/model_name
+C100-80
+/sys/class/power_supply/bq27500-0/manufacturer
+Texas Instruments
+/sys/class/power_supply/bq27500-0/technology
+Li-ion
+/sys/class/power_supply/bq27500-0/cycle_count
+46
+/sys/class/power_supply/bq27500-0/time_to_full_now
+441780
+/sys/class/power_supply/bq27500-0/time_to_empty_avg
+0
+/sys/class/power_supply/bq27500-0/time_to_empty_now
+40980
+/sys/class/power_supply/bq27500-0/present
+1
+/sys/class/power_supply/gpio-charger/
+cat: /sys/class/power_supply/gpio-charger/: Is a directory
+/sys/class/power_supply/gpio-charger/type
+Mains
+/sys/class/power_supply/gpio-charger/power
+cat: /sys/class/power_supply/gpio-charger/power: Is a directory
+/sys/class/power_supply/gpio-charger/power/control
+auto
+/sys/class/power_supply/gpio-charger/power/async
+disabled
+/sys/class/power_supply/gpio-charger/power/wakeup_abort_count
+0
+/sys/class/power_supply/gpio-charger/power/wakeup_active
+0
+/sys/class/power_supply/gpio-charger/power/wakeup_type
+unknown
+/sys/class/power_supply/gpio-charger/power/wakeup_total_time_ms
+0
+/sys/class/power_supply/gpio-charger/power/wakeup_active_count
+1
+/sys/class/power_supply/gpio-charger/power/runtime_enabled
+disabled
+/sys/class/power_supply/gpio-charger/power/runtime_active_kids
+0
+/sys/class/power_supply/gpio-charger/power/runtime_active_time
+0
+/sys/class/power_supply/gpio-charger/power/wakeup_max_time_ms
+0
+/sys/class/power_supply/gpio-charger/power/wakeup_count
+1
+/sys/class/power_supply/gpio-charger/power/wakeup_last_time_ms
+349
+/sys/class/power_supply/gpio-charger/power/wakeup
+enabled
+/sys/class/power_supply/gpio-charger/power/autosuspend_delay_ms
+cat: /sys/class/power_supply/gpio-charger/power/autosuspend_delay_ms: Input/output error
+/sys/class/power_supply/gpio-charger/power/runtime_status
+unsupported
+/sys/class/power_supply/gpio-charger/power/runtime_usage
+0
+/sys/class/power_supply/gpio-charger/power/wakeup_expire_count
+0
+/sys/class/power_supply/gpio-charger/power/runtime_suspended_time
+0
+/sys/class/power_supply/gpio-charger/device
+cat: /sys/class/power_supply/gpio-charger/device: Is a directory
+/sys/class/power_supply/gpio-charger/subsystem
+cat: /sys/class/power_supply/gpio-charger/subsystem: Is a directory
+/sys/class/power_supply/gpio-charger/online
+0
+/sys/class/power_supply/gpio-charger/uevent
+POWER_SUPPLY_NAME=gpio-charger
+POWER_SUPPLY_ONLINE=0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/capacity

@@ -0,0 +1 @@
+98

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/capacity_level

@@ -0,0 +1 @@
+Normal

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/charge_full

@@ -0,0 +1 @@
+7323000

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/charge_full_design

@@ -0,0 +1 @@
+8180000

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/charge_now

@@ -0,0 +1 @@
+7253000

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/current_now

@@ -0,0 +1 @@
+-498000

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/cycle_count

@@ -0,0 +1 @@
+46

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/energy_now

@@ -0,0 +1 @@
+7253000

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/health

@@ -0,0 +1 @@
+Good

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/manufacturer

@@ -0,0 +1 @@
+Texas Instruments

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/model_name

@@ -0,0 +1 @@
+C100-80

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/async

@@ -0,0 +1 @@
+disabled

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/control

@@ -0,0 +1 @@
+auto

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/runtime_active_kids

@@ -0,0 +1 @@
+0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/runtime_active_time

@@ -0,0 +1 @@
+0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/runtime_enabled

@@ -0,0 +1 @@
+disabled

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/runtime_status

@@ -0,0 +1 @@
+unsupported

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/runtime_suspended_time

@@ -0,0 +1 @@
+0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/runtime_usage

@@ -0,0 +1 @@
+0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/wakeup

@@ -0,0 +1 @@
+enabled

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/wakeup_abort_count

@@ -0,0 +1 @@
+0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/wakeup_active

@@ -0,0 +1 @@
+0

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/wakeup_active_count

@@ -0,0 +1 @@
+3

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/wakeup_count

@@ -0,0 +1 @@
+3

test/acer-chromebook-c100pa/sys/class/power_supply/bq27500-0/power/wakeup_expire_count

@@ -0,0 +1 @@
+0