use xrender to capture screenshots

Fix one second delay before urgent task starts to blink

See merge request o9000/tint2!30

AUTHORS

@@ -6,6 +6,7 @@ tint2 is developped by :
 - Ovidiu M <mrovi9000 at gmail.com> : launcher, bug fixes
 - Mishael A Sibiryakov (death@junki.org) : freespace
 - Sebastian Reichel <sre@ring0.de> : battery, various fixes, debian package maintainer
+- Chris Lee <chrlee at protonmail> : bug fixes, maintainer starting with v16.3
 
 tint2 is based on the ttm source code (http://code.google.com/p/ttm/)
 - 2007-2008 Pål Staurland <staura@gmail.com>
@@ -32,6 +33,7 @@ Contributors:
   Ryan Gray, Jeff Blake (https://gitlab.com/berkley4) : battery format
   aaaz (https://gitlab.com/aaaz) : clock fixes
   heisenbug (https://gitlab.com/heisenbugh) : taskbar button tinting with icon color
+  Fabian Carlström : taskbar sort order by app name
 
 Translations:
   Bosnian:

CMakeLists.txt

@@ -152,6 +152,7 @@ set( SOURCES src/config.c
              src/separator/separator.c
              src/tint2rc.c
              src/util/area.c
+             src/util/bt.c
              src/util/common.c
              src/util/fps_distribution.c
              src/util/strnatcmp.c

ChangeLog

@@ -1,3 +1,38 @@
+2019-02-17 master
+- Fix spacing around icons in executor without text in vertical panels (issue #716)
+- Fix Bug: Clock Only Updates Every Minute With Format %s (issue #724)
+- Fix markup drawing when font shadow enabled (issue #709)
+- Blink battery when low (issue #723)
+
+2018-08-05 16.6.1
+- Fix packaging regression for debian (issue #715)
+
+2018-08-04 16.6
+- Fix regression in task icon brightness (issue #714)
+
+2018-08-04 16.5
+- Add new build script
+- Add option to sort taskbar by application name
+- Fix regression in image loading
+
+2018-05-03 16.4
+- Update AUTHORS
+- Fixes:
+  - Fix leak in image loading (issue #704)
+  - Executors no longer log unless env var DEBUG_EXECUTORS is set
+
+2018-04-17 16.3
+- Fixes:
+  - Layout in executor (issue #695)
+  - Other small issues
+
+2018-01-21 16.2
+- Fixes:
+  - Proper fix for issue #688
+  - Fix bad word wrapping (issue #693)
+- Enhancements:
+  - Preliminary high DPI support
+
 2017-12-30 16.1
 - Fixes:
   - Fixed several use-after-free errors in the timer code
@@ -985,3 +1020,8 @@ released tint-0.2
 .
 .
 .
+.
+.
+.
+.
+.

README.md

@@ -1,5 +1,5 @@
-# Latest stable release: 16.1
+# Latest stable release: 16.6.1
-Changes: https://gitlab.com/o9000/tint2/blob/16.1/ChangeLog
+Changes: https://gitlab.com/o9000/tint2/blob/16.6.1/ChangeLog
 
 Documentation: [doc/tint2.md](doc/tint2.md)
 
@@ -8,7 +8,7 @@ Compile it with (after you install the [dependencies](https://gitlab.com/o9000/t
 ```
 git clone https://gitlab.com/o9000/tint2.git
 cd tint2
-git checkout 16.1
+git checkout 16.6.1
 mkdir build
 cd build
 cmake ..
@@ -97,4 +97,3 @@ tint2 is a simple panel/taskbar made for modern X window managers. It was specif
 ## More
 
 * [Tint2 wiki](https://gitlab.com/o9000/tint2/wikis/Home)
-Home)

doc/manual.html

@@ -386,6 +386,8 @@ gradient_id_pressed = 2
 <li><code>width</code> and <code>height</code> can be specified without units (e.g. <code>123</code>) as pixels, or followed by <code>%</code> as percentages of the monitor size (e.g. <code>50%</code>). Use <code>100%</code> for full monitor width/height.
 Example:</li>
 </ul></li>
+<li><p><code>scale_relative_to_dpi = integer</code> : If set to a non-zero value, HiDPI scaling is enabled. Each panel is visible on a different monitor. Thus each panel has a specific scaling factor. The scaling factor is computed as the ratio between the monitor DPI (obtained from the dimensions in pixels and millimeters from RandR) and a configured reference DPI - this is the DPI for which exising user configs looked normal, for backward compatibility.</p></li>
+<li><p><code>scale_relative_to_screen_height = integer</code> : Similar to <code>scale_relative_to_dpi</code>, except the scaling factor is computed as the ratio between the monitor height and <code>scale_relative_to_screen_height</code>. The effect is cumulative with <code>scale_relative_to_dpi</code>, i.e. if both options are present, the factors are multiplied.</p></li>
 </ul>
 <pre class="highlight plaintext"><code># The panel's width is 94% the size of the monitor, the height is 30 pixels:
 panel_size = 94% 30
@@ -464,6 +466,7 @@ panel_size = 94% 30
 <ul>
 <li><code>none</code> : No sorting. New tasks are simply appended at the end of the taskbar when they appear.</li>
 <li><code>title</code> : Sorts the tasks by title.</li>
+<li><code>application</code> : Sorts the tasks by application name. <em>(since 16.3)</em></li>
 <li><code>center</code> : Sorts the tasks by their window centers.</li>
 <li><code>mru</code> : Shows the most recently used tasks first. <em>(since 0.12.4)</em></li>
 <li><code>lru</code> : Shows the most recently used tasks last. <em>(since 0.12.4)</em></li>
@@ -570,7 +573,7 @@ panel_size = 94% 30
 <ul>
 <li><p><code>battery_hide = never/integer (0 to 100)</code> : At what battery percentage the battery item is hidden.</p></li>
 <li><p><code>battery_low_status = integer</code>: At what battery percentage the low command is executed.</p></li>
-<li><p><code>battery_low_cmd = notify-send &quot;battery low&quot;</code> : Command to execute when the battery is low.</p></li>
+<li><p><code>battery_low_cmd = xmessage &#39;tint2: Battery low!&#39;</code> : Command to execute when the battery is low.</p></li>
 <li><p><code>battery_full_cmd = notify-send &quot;battery full&quot;</code> : Command to execute when the battery is full.</p></li>
 <li><p><code>bat1_font = [FAMILY-LIST] [STYLE-OPTIONS] [SIZE]</code></p></li>
 <li><p><code>bat2_font = [FAMILY-LIST] [STYLE-OPTIONS] [SIZE]</code></p></li>

doc/readme.html

@@ -199,9 +199,9 @@ pre {
 </style>
 </head>
 <body>
-<h1 id="latest-stable-release-16-1"><span class="md2man-title">Latest</span> <span class="md2man-section">stable</span> <span class="md2man-date">release:</span> <span class="md2man-source">16.1</span><a name="latest-stable-release-16-1" href="#latest-stable-release-16-1" class="md2man-permalink" title="permalink"></a></h1><p>Changes: <a href="https://gitlab.com/o9000/tint2/blob/16.1/ChangeLog">https://gitlab.com/o9000/tint2/blob/16.1/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
+<h1 id="latest-stable-release-16-6-1"><span class="md2man-title">Latest</span> <span class="md2man-section">stable</span> <span class="md2man-date">release:</span> <span class="md2man-source">16.6.1</span><a name="latest-stable-release-16-6-1" href="#latest-stable-release-16-6-1" class="md2man-permalink" title="permalink"></a></h1><p>Changes: <a href="https://gitlab.com/o9000/tint2/blob/16.6.1/ChangeLog">https://gitlab.com/o9000/tint2/blob/16.6.1/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 16.1
+git checkout 16.6.1
 mkdir build
 cd build
 cmake ..
@@ -269,8 +269,7 @@ update-mime-database /usr/local/share/mime
 </ul>
 <h2 id="more">More<a name="more" href="#more" class="md2man-permalink" title="permalink"></a></h2>
 <ul>
-<li><a href="https://gitlab.com/o9000/tint2/wikis/Home">Tint2 wiki</a>
+<li><a href="https://gitlab.com/o9000/tint2/wikis/Home">Tint2 wiki</a></li>
-Home)</li>
 </ul>
 </body>
 </html>

doc/tint2.1

@@ -1,4 +1,4 @@
-.TH TINT2 1 "2017\-12\-30" 16.1
+.TH TINT2 1 "2018\-08\-05" 16.6.1
 .SH NAME
 .PP
 tint2 \- lightweight panel/taskbar
@@ -343,6 +343,10 @@ Use \fB\fCpanel_monitor = all\fR to get a separate panel per monitor
 \fB\fCwidth\fR and \fB\fCheight\fR can be specified without units (e.g. \fB\fC123\fR) as pixels, or followed by \fB\fC%\fR as percentages of the monitor size (e.g. \fB\fC50%\fR). Use \fB\fC100%\fR for full monitor width/height.
 Example:
 .RE
+.IP \(bu 2
+\fB\fCscale_relative_to_dpi = integer\fR : If set to a non\-zero value, HiDPI scaling is enabled. Each panel is visible on a different monitor. Thus each panel has a specific scaling factor. The scaling factor is computed as the ratio between the monitor DPI (obtained from the dimensions in pixels and millimeters from RandR) and a configured reference DPI \- this is the DPI for which exising user configs looked normal, for backward compatibility.
+.IP \(bu 2
+\fB\fCscale_relative_to_screen_height = integer\fR : Similar to \fB\fCscale_relative_to_dpi\fR, except the scaling factor is computed as the ratio between the monitor height and \fB\fCscale_relative_to_screen_height\fR\&. The effect is cumulative with \fB\fCscale_relative_to_dpi\fR, i.e. if both options are present, the factors are multiplied.
 .RE
 .PP
 .RS
@@ -476,6 +480,8 @@ You can switch between virtual desktops.
 .IP \(bu 2
 \fB\fCtitle\fR : Sorts the tasks by title.
 .IP \(bu 2
+\fB\fCapplication\fR : Sorts the tasks by application name. \fI(since 16.3)\fP
+.IP \(bu 2
 \fB\fCcenter\fR : Sorts the tasks by their window centers.
 .IP \(bu 2
 \fB\fCmru\fR : Shows the most recently used tasks first. \fI(since 0.12.4)\fP
@@ -659,7 +665,7 @@ To hide the clock, comment \fB\fCtime1_format\fR and \fB\fCtime2_format\fR\&.
 .IP \(bu 2
 \fB\fCbattery_low_status = integer\fR: At what battery percentage the low command is executed.
 .IP \(bu 2
-\fB\fCbattery_low_cmd = notify\-send "battery low"\fR : Command to execute when the battery is low.
+\fB\fCbattery_low_cmd = xmessage 'tint2: Battery low!'\fR : Command to execute when the battery is low.
 .IP \(bu 2
 \fB\fCbattery_full_cmd = notify\-send "battery full"\fR : Command to execute when the battery is full.
 .IP \(bu 2

doc/tint2.md

@@ -1,4 +1,4 @@
-# TINT2 1 "2017-12-30" 16.1
+# TINT2 1 "2018-08-05" 16.6.1
 
 ## NAME
 tint2 - lightweight panel/taskbar
@@ -279,6 +279,10 @@ gradient_id_pressed = 2
     * `width` and `height` can be specified without units (e.g. `123`) as pixels, or followed by `%` as percentages of the monitor size (e.g. `50%`). Use `100%` for full monitor width/height.
       Example:
 
+  * `scale_relative_to_dpi = integer` : If set to a non-zero value, HiDPI scaling is enabled. Each panel is visible on a different monitor. Thus each panel has a specific scaling factor. The scaling factor is computed as the ratio between the monitor DPI (obtained from the dimensions in pixels and millimeters from RandR) and a configured reference DPI - this is the DPI for which exising user configs looked normal, for backward compatibility.
+
+  * `scale_relative_to_screen_height = integer` : Similar to `scale_relative_to_dpi`, except the scaling factor is computed as the ratio between the monitor height and `scale_relative_to_screen_height`. The effect is cumulative with `scale_relative_to_dpi`, i.e. if both options are present, the factors are multiplied.
+
 ```
 # The panel's width is 94% the size of the monitor, the height is 30 pixels:
 panel_size = 94% 30
@@ -381,6 +385,7 @@ panel_size = 94% 30
   * `taskbar_sort_order = none/title/center` : Specifies the sort order of the tasks on the taskbar.  *(since 0.12)*
     * `none` : No sorting. New tasks are simply appended at the end of the taskbar when they appear.
     * `title` : Sorts the tasks by title.
+    * `application` : Sorts the tasks by application name. *(since 16.3)*
     * `center` : Sorts the tasks by their window centers.
     * `mru` : Shows the most recently used tasks first. *(since 0.12.4)*
     * `lru` : Shows the most recently used tasks last. *(since 0.12.4)*
@@ -542,7 +547,7 @@ The action semantics:
 
   * `battery_low_status = integer`: At what battery percentage the low command is executed.
 
-  * `battery_low_cmd = notify-send "battery low"` : Command to execute when the battery is low.
+  * `battery_low_cmd = xmessage 'tint2: Battery low!'` : Command to execute when the battery is low.
 
   * `battery_full_cmd = notify-send "battery full"` : Command to execute when the battery is full.
 

new-release.py

@@ -76,19 +76,23 @@ def get_last_version():
   return tags[-1]
 
 
-def inc_version(v, feature=False):
+def inc_version(v, feature=False, tiny=False):
   if v.startswith("v0."):
     assert v == "v0.14.6"
     return "v15.0"
-  # v4.11 -> v4.12 or v5.0
+  # v4.11 -> v4.12 or v5.0 or v4.11.1
   parts = v.split(".")
-  while len(parts) < 2:
+  while len(parts) < 3:
     parts.append("0")
-  assert len(parts) == 2
+  assert len(parts) == 3
   if feature:
+    del parts[-1]
     parts[-2] = "v" + str(int(parts[-2].replace("v", "")) + 1)
     parts[-1] = "0"
+  elif tiny:
+    parts[-1] = str(int(parts[-1]) + 1)
   else:
+    del parts[-1]
     parts[-1] = str(int(parts[-1]) + 1)
   return ".".join([s for s in parts if s])
 
@@ -153,23 +157,14 @@ def update_log(path, version, date):
 if __name__ == '__main__':
   parser = argparse.ArgumentParser()
   parser.add_argument("--feature", action="store_true")
-  parser.add_argument("--undo", action="store_true")
+  parser.add_argument("--tiny", action="store_true")
   args = parser.parse_args()
   logging.basicConfig(format=ansi_lblue + "%(asctime)s %(pathname)s %(levelname)s" + ansi_reset + " %(message)s", level=logging.DEBUG)
   test_inc_version()
   # Read version from last tag and increment
   old_version = get_last_version()
-  if args.undo:
-    info("Revering last commit...")
-    run("git tag -d %s" % old_version)
-    run("git tag -d %s" % old_version.replace("v", ""))
-    run("git reset --soft HEAD~")
-    run("git reset")
-    run("git stash")
-    os.system("git log -1")
-    sys.exit(0)
   info("Old version:", old_version)
-  version = inc_version(old_version, args.feature)
+  version = inc_version(old_version, args.feature, args.tiny)
   readable_version = version.replace("v", "")
   date = datetime.datetime.now().strftime("%Y-%m-%d")
   info("New version:", readable_version, version, date)
@@ -194,3 +189,9 @@ if __name__ == '__main__':
   choice = raw_input().lower()
   if choice != "y":
     run("git reset --hard HEAD~ ; git tag -d %s ; git tag -d %s" % (version, readable_version))
+    sys.exit(1)
+  print "Publish? [y/n]"
+  choice = raw_input().lower()
+  if choice != "y":
+    sys.exit(1)
+  run("git push origin master && git push --tags origin master")

packaging/configure

@@ -0,0 +1,544 @@
+#!/usr/bin/env python2.7
+
+from __future__ import print_function
+
+import argparse
+import errno
+import os
+import shlex
+import subprocess
+import sys
+import tempfile
+
+
+def check_c_compiles(cmd, code):
+    with tempfile.NamedTemporaryFile(suffix='.c') as f:
+        f.write(code)
+        f.flush()
+        cmd += [f.name, '-o', '/dev/null']
+        proc = subprocess.Popen(
+                  cmd,
+                  stdout=subprocess.PIPE,
+                  stderr=subprocess.PIPE)
+        out, err = proc.communicate()
+        ret = proc.returncode
+        return ret == 0
+
+
+def makedirs(path):
+    try:
+        os.makedirs(path)
+    except OSError as e:
+        if e.errno == errno.EEXIST and os.path.isdir(path):
+            pass
+        else:
+            raise
+
+
+def pkg_config(lib):
+    def _pkgconfig(lib, query):
+        lib = lib.replace('>=', ' >= ')
+        cmd = 'pkg-config {} {}'.format(query, lib).split()
+        popen = subprocess.Popen(cmd,
+                                 stdout=subprocess.PIPE,
+                                 stderr=subprocess.PIPE)
+        out, err = popen.communicate()
+        if popen.returncode != 0:
+            print(cmd)
+            print(err)
+            raise ValueError("Could not find library: {}".format(lib))
+        return out.split()
+
+    lf = _pkgconfig(lib, '--libs-only-l')
+    cf = _pkgconfig(lib, '--cflags')
+    ldf = _pkgconfig(lib, '--libs-only-L')
+    return (lf, cf, ldf)
+
+
+def ninja_escape(s):
+    s = s.replace(' ', '$ ')
+    s = s.replace('\n', '$\n')
+    return s
+
+
+def ninja_join(words):
+    indent = '        '
+    if len(words) > 1:
+        prefix = '$\n' + indent
+    else:
+        prefix = ''
+    spacer = ' $\n' + indent
+    return prefix + spacer.join(ninja_escape(s) for s in words)
+
+
+def ninja_write_vars(f, **kwargs):
+    for k, v in kwargs.items():
+        f.write('{} = {}\n'.format(k, v))
+    f.write('\n')
+
+
+def ninja_write_rule(f, name, **kwargs):
+    f.write('rule {}\n'.format(name))
+    for k, v in kwargs.items():
+        f.write('  {} = {}\n'.format(k, v))
+    f.write('\n')
+
+
+def remove_prefix(s, prefix):
+    while prefix and s.startswith(prefix):
+        s = s[len(prefix):]
+    return s
+
+
+def install(prefix, suffix, dest_dir, dest_suffix=''):
+    src_path = os.path.join(prefix, suffix) if suffix else prefix
+    fname = os.path.basename(src_path)
+    if dest_suffix:
+        dest_dir = os.path.join(dest_dir, dest_suffix)
+    dst_path = os.path.join(dest_dir, fname)
+    return [(src_path, dst_path)]
+
+
+def install_dir(prefix, suffix, dest_dir, dest_suffix=''):
+    result = []
+    src_path = os.path.join(prefix, suffix)
+    for root, dirs, files in os.walk(src_path):
+        for f in files:
+            fname = os.path.join(root, f)
+            fsuffix = remove_prefix(remove_prefix(fname, prefix), '/')
+            result += install(prefix, fsuffix, dest_dir, os.path.join(dest_suffix, os.path.dirname(fsuffix)))
+    return result
+
+
+class Executable(object):
+    def __init__(self, name):
+        self.name = name
+        self.cc = 'cc'
+        self.cflags = []
+        self.lflags = []
+        self.libs = []
+        self.sources = []
+        self.pos = []
+        self.install_exec = []
+        self.install_data = []
+
+    def write_ninja(self, f):
+        f.write('# Executable: {}\n'.format(self.name))
+        ninja_write_vars(f, **{
+            'cc_' + self.name: self.cc,
+            'cflags_' + self.name: ninja_join(self.cflags),
+            'lflags_' + self.name: ninja_join(self.lflags),
+            'libs_' + self.name: ninja_join(self.libs)})
+        ninja_write_rule(f, 'cc_' + self.name,
+            command='$cc_{} -MMD -MT $out -MF $out.d $cflags_{} -c $in -o $out'.format(self.name, self.name),
+            description='CC $out',
+            depfile='$out.d',
+            deps='gcc')
+        ninja_write_rule(f, 'link_' + self.name,
+            command='$cc_{} $lflags_{} -o $out $in $libs_{}'.format(self.name, self.name, self.name),
+            description='LINK $out')
+        ninja_write_rule(f, 'po2mo_' + self.name,
+            command='msgfmt -o $out $in',
+            description='GEN $out')
+        f.write('# Compilation\n')
+        for src in self.sources:
+            f.write('build $build_dir/{}.{}.o: cc_{} $source_dir/{}\n'.format(src, self.name, self.name, src))
+        f.write('# Translation\n')
+        for po in self.pos:
+            f.write('build $build_dir/{}.mo: po2mo_{} $source_dir/{}\n'.format(os.path.splitext(po)[0], self.name, po))
+        f.write('# Linking\n')
+        f.write('build $build_dir/{}: link_{} '.format(self.name, self.name))
+        f.write(ninja_join(['$build_dir/{}.{}.o'.format(src, self.name) for src in self.sources]))
+        f.write('\n')
+        f.write('# Installation\n')
+        for fin, fout in self.install_exec:
+            f.write('build {}: install_exec {}\n'.format(fout, fin))
+        for fin, fout in self.install_data:
+            f.write('build {}: install_data {}\n'.format(fout, fin))
+        f.write('build install_{}: phony '.format(self.name))
+        f.write(ninja_join([fout for fin, fout in self.install_exec + self.install_data]))
+        f.write('\n')
+        f.write('# Uninstallation\n')
+        for fin, fout in self.install_exec + self.install_data:
+            f.write('build uninstall_{}: uninstall {}\n'.format(fout, fout))
+        f.write('build uninstall_{}: phony '.format(self.name))
+        f.write(ninja_join(['uninstall_{}'.format(fout) for fin, fout in self.install_exec + self.install_data]))
+        f.write('\n')
+        f.write('\n')
+
+
+
+def generate_ninja(targets, source_dir, build_dir):
+    ninja_file_name = os.path.join(build_dir, 'build.ninja')
+    f = open(ninja_file_name, 'w')
+    # `deps` was introduced in ninja 1.3.
+    ninja_write_vars(f, ninja_required_version='1.3')
+    ninja_write_vars(f, **{
+        'source_dir':source_dir,
+        'build_dir':build_dir
+    })
+    ninja_write_rule(f, 'install_exec',
+        command='install -D -m0755 $in $out',
+        description='INSTALL $out')
+    ninja_write_rule(f, 'install_data',
+        command='install -D -m0644 $in $out',
+        description='INSTALL $out')
+    ninja_write_rule(f, 'uninstall',
+        command='rm -f $in',
+        description='RM $in')
+    for t in targets:
+        t.write_ninja(f)
+    f.write('# Targets\n')
+    f.write('build all: phony ')
+    f.write(ninja_join(['$build_dir/{}'.format(t.name) for t in targets]))
+    f.write('\n')
+    installs = sum([(t.install_exec + t.install_data) for t in targets], [])
+    if installs:
+        f.write('build install: phony ')
+        f.write(ninja_join(['install_{}'.format(t.name) for t in targets]))
+        f.write('\n')
+        f.write('build uninstall: phony ')
+        f.write(ninja_join(['uninstall_{}'.format(t.name) for t in targets]))
+        f.write('\n')
+    f.write('\n')
+    f.write('default all\n')
+    f.close()
+    print('Wrote {}.'.format(ninja_file_name))
+    print('Run `ninja -v -C {} all` to compile.'.format(build_dir))
+    print('Run `ninja -v -C {} install` to install.'.format(build_dir))
+
+
+# Parse CLI options
+parser = argparse.ArgumentParser()
+parser.add_argument('--uevent', dest='uevent', action='store_true',
+                    help='Enable uevent support. Default: on under Linux')
+parser.add_argument('--debug', dest='debug', action='store_true',
+                    help='Enable debug build. Default: off')
+parser.add_argument('--asan', dest='asan', action='store_true',
+                    help='Enable AddressSanitizer. Default: off')
+parser.add_argument('--tracing', dest='tracing', action='store_true',
+                    help='Enable tracing. Default: off')
+parser.add_argument('--memory-tracing', dest='memory_tracing', action='store_true',
+                    help='Enable memory allocation tracing. Default: off')
+parser.add_argument('--prefix', help='Prefix for constructing the file installation paths. Default: /usr/local', default=None)
+parser.add_argument('--exec_prefix', help='Prefix for binary paths. Default: $prefix', default=None)
+parser.add_argument('--bindir', help='Path where executables must be installed. Default: $exec_prefix/bin', default=None)
+parser.add_argument('--sysconfdir', help='Path where config files must be installed. Default: /etc', default=None)
+parser.add_argument('--datarootdir', help='Path where data files must be installed. Default: $prefix/share', default=None)
+parser.add_argument('--localedir', help='Path where locale files must be installed. Default: $datarootdir/locale', default=None)
+parser.add_argument('--docdir', help='Path where documentation files must be installed. Default: $datarootdir/doc/tint2', default=None)
+parser.add_argument('--htmldir', help='Path where documentation files must be installed. Default: $docdir/html', default=None)
+parser.add_argument('--mandir', help='Path where man files must be installed. Default: $datarootdir/man', default=None)
+parser.add_argument('--home', dest='home', action='store_true',
+                    help='Install to $HOME (sets all paths accordingly). Default: off')
+args = parser.parse_args()
+
+# Get relevant environment variables
+CC = os.environ.get('CC', 'cc')
+CFLAGS = shlex.split(os.environ.get('CFLAGS', ''))
+LFLAGS = shlex.split(os.environ.get('LDFLAGS', ''))
+LIBS = []
+
+# Get paths
+source_dir = os.path.realpath(os.path.dirname(os.path.realpath(__file__)) + '/..')
+build_dir = os.path.join(os.getcwd(), 'build')
+if not args.home:
+    prefix = args.prefix or '/usr/local'
+    exec_prefix = args.exec_prefix or prefix
+    bindir = args.bindir or os.path.join(exec_prefix, 'bin')
+    datarootdir = args.datarootdir or os.path.join(prefix, 'share')
+    sysconfdir = args.sysconfdir or '/etc'
+    docdir = args.docdir or os.path.join(datarootdir, 'doc/tint2')
+    htmldir = args.htmldir or os.path.join(docdir, 'html')
+    localedir = args.localedir or os.path.join(datarootdir, 'locale')
+    mandir = args.mandir or os.path.join(datarootdir, 'man')
+else:
+    prefix = args.prefix or os.path.expanduser("~")
+    exec_prefix = args.exec_prefix or prefix
+    bindir = args.bindir or os.path.join(exec_prefix, 'bin')
+    datarootdir = args.datarootdir or os.path.join(prefix, '.local/share')
+    sysconfdir = args.sysconfdir or os.path.expanduser("~/.config/tint2")
+    docdir = args.docdir or os.path.join(datarootdir, 'doc/tint2')
+    htmldir = args.htmldir or os.path.join(docdir, 'html')
+    localedir = args.localedir or os.path.join(datarootdir, 'locale')
+    mandir = args.mandir or os.path.join(datarootdir, 'man')
+
+
+# Check if C11 is supported by the compiler, fall back to C99
+if check_c_compiles([CC],
+                    '''#define print(x) _Generic((x), default : print_unknown)(x)
+                    void print_unknown() {
+                    }
+                    int main () {
+                        print(0);
+                    }'''):
+    CFLAGS += ['-std=c11', '-DHAS_GENERIC']
+else:
+    print("No C11 support.")
+    CFLAGS += ['-std=c99']
+
+# Set mandatory flags
+CFLAGS += ['-g',
+           '-Wall',
+           '-Wextra',
+           '-Wshadow',
+           '-Wpointer-arith',
+           '-Wno-deprecated',
+           '-Wno-missing-field-initializers',
+           '-Wno-unused-parameter',
+           '-Wno-sign-compare',
+           '-fno-strict-aliasing',
+           '-pthread',
+           '-D_BSD_SOURCE',
+           '-D_DEFAULT_SOURCE',
+           '-D_WITH_GETLINE',
+           '-DENABLE_BATTERY']
+LFLAGS += ['-fno-strict-aliasing',
+           '-pthread']
+LFLAGS += ['-L' + build_dir]
+
+# Set platform dependent C flags
+if sys.platform.startswith('linux'):
+    CFLAGS += ['-D_POSIX_C_SOURCE=200809L']
+
+if sys.platform.startswith('freebsd') or sys.platform.startswith('openbsd') or sys.platform.startswith('dragonfly'):
+    CFLAGS += ['-I/usr/local/include']
+    LFLAGS += ['-L/usr/local/lib']
+
+if sys.platform.startswith('linux') or args.uevent:
+    CFLAGS += ['-DENABLE_UEVENT']
+
+# Turn on color messages if supported
+if check_c_compiles([CC, '-fdiagnostics-color', '-c', '-x', 'c'], ''):
+    CFLAGS += ['-fdiagnostics-color=always']
+
+# Set project-specific include dirs
+CFLAGS += ['-I.']
+for inc in ['src',
+            'src/battery',
+            'src/clock',
+            'src/systray',
+            'src/taskbar',
+            'src/launcher',
+            'src/tooltip',
+            'src/util',
+            'src/execplugin',
+            'src/button',
+            'src/freespace',
+            'src/separator']:
+    CFLAGS += ['-I' + os.path.join(source_dir, inc)]
+
+# Add mandatory library dependencies
+LIBS += ['-lm', '-lrt']
+
+# Add mandatory libray dependencies detected with pkg-config
+for dep in ['x11',
+            'xcomposite',
+            'xdamage',
+            'xinerama',
+            'xext',
+            'xrender',
+            'xrandr>=1.3',
+            'pangocairo',
+            'pango',
+            'cairo',
+            'glib-2.0',
+            'gobject-2.0',
+            'imlib2>=1.4.2']:
+    lib, cf, lf = pkg_config(dep)
+    LIBS += lib
+    CFLAGS += cf
+    LFLAGS += lf
+
+# Add optional library dependencies detected with pkg-config
+try:
+    lib, cf, lf = pkg_config('librsvg-2.0>=2.14.0')
+    LIBS += lib
+    CFLAGS += cf + ['-DHAVE_RSVG']
+    LFLAGS += lf
+except:
+    print("No SVG support.")
+
+try:
+    lib, cf, lf = pkg_config('libstartup-notification-1.0>=0.12')
+    LIBS += lib
+    CFLAGS += cf + ['-DHAVE_SN', '-DSN_API_NOT_YET_FROZEN']
+    LFLAGS += lf
+except:
+    print("No startup notification support.")
+
+# Add library dependencies detected with using successful compilation test
+bt = False
+if not bt:
+    try:
+        lib, cf, lf = pkg_config('libunwind')
+        LIBS += lib
+        CFLAGS += cf + ['-DHAS_LIBUNWIND']
+        LFLAGS += lf
+        bt = True
+        print("Backtrace support via libunwind.")
+    except:
+        print("No backtrace support via libunwind.")
+if not bt:
+    if check_c_compiles([CC, '-lbacktrace'], '''#include <backtrace.h>
+            int main() {
+                return 0;
+            }'''):
+        CFLAGS += ['-DHAS_BACKTRACE']
+        LIBS += ['-lbacktrace']
+        bt = True
+        print("Backtrace support via libbacktrace.")
+    else:
+        print("No backtrace support via libbacktrace.")
+
+# Add option-dependent flags
+if not args.debug:
+    CFLAGS += ['-O2']
+
+if args.asan:
+    asan_flags = ['-fsanitize=address']
+    CFLAGS += asan_flags
+    LFLAGS += asan_flags
+
+if args.tracing:
+    CFLAGS += ['-finstrument-functions',
+               '-finstrument-functions-exclude-file-list=tracing.c',
+               '-finstrument-functions-exclude-function-list=get_time,gettime']
+
+if args.asan or args.memory_tracing or args.tracing:
+    trace_flags = ['-O0',
+                   '-fno-common',
+                   '-fno-omit-frame-pointer',
+                   '-rdynamic']
+    CFLAGS += trace_flags
+    LFLAGS += trace_flags + ['-fuse-ld=gold']
+
+if args.memory_tracing:
+    LIBS += ['-ldl']
+
+# Define targets
+tint2 = Executable('tint2')
+tint2.cflags += CFLAGS
+tint2.lflags += LFLAGS
+tint2.libs += LIBS
+tint2.sources = ['src/config.c',
+                 'src/panel.c',
+                 'src/util/server.c',
+                 'src/main.c',
+                 'src/init.c',
+                 'src/util/signals.c',
+                 'src/util/tracing.c',
+                 'src/mouse_actions.c',
+                 'src/drag_and_drop.c',
+                 'src/default_icon.c',
+                 'src/clock/clock.c',
+                 'src/systray/systraybar.c',
+                 'src/launcher/launcher.c',
+                 'src/launcher/apps-common.c',
+                 'src/launcher/icon-theme-common.c',
+                 'src/launcher/xsettings-client.c',
+                 'src/launcher/xsettings-common.c',
+                 'src/taskbar/task.c',
+                 'src/taskbar/taskbar.c',
+                 'src/taskbar/taskbarname.c',
+                 'src/tooltip/tooltip.c',
+                 'src/execplugin/execplugin.c',
+                 'src/button/button.c',
+                 'src/freespace/freespace.c',
+                 'src/separator/separator.c',
+                 'src/tint2rc.c',
+                 'src/util/area.c',
+                 'src/util/bt.c',
+                 'src/util/common.c',
+                 'src/util/fps_distribution.c',
+                 'src/util/strnatcmp.c',
+                 'src/util/timer.c',
+                 'src/util/cache.c',
+                 'src/util/color.c',
+                 'src/util/strlcat.c',
+                 'src/util/print.c',
+                 'src/util/gradient.c',
+                 'src/util/test.c',
+                 'src/util/uevent.c',
+                 'src/util/window.c',
+                 'src/battery/battery.c']
+
+# Battery implementation is platform-specific
+if sys.platform.startswith('linux'):
+    tint2.sources += ['src/battery/linux.c']
+elif sys.platform.startswith('freebsd') or \
+     sys.platform.startswith('dragonfly') or \
+     sys.platform.startswith('gnukfreebsd'):
+    tint2.sources += ['src/battery/freebsd.c']
+elif sys.platform.startswith('openbsd') or \
+     sys.platform.startswith('netbsd'):
+    tint2.sources += ['src/battery/openbsd.c']
+else:
+    print("No battery support for platform:", sys.platform)
+    tint2.sources += ['src/battery/dummy.c']
+
+if args.memory_tracing:
+    tint2.sources += ['src/util/mem.c']
+
+tint2.install_exec = install(build_dir, 'tint2', bindir)
+tint2.install_data = (install(source_dir, 'tint2.svg', datarootdir, 'icons/hicolor/scalable/apps') +
+                      install(source_dir, 'tint2.desktop', datarootdir, 'applications') +
+                      install(source_dir, 'themes/tint2rc', sysconfdir, 'xdg/tint2') +
+                      install(source_dir, 'default_icon.png', datarootdir, 'tint2') +
+                      install(source_dir, 'AUTHORS', docdir) +
+                      install(source_dir, 'ChangeLog', docdir) +
+                      install(source_dir, 'README.md', docdir) +
+                      install(source_dir, 'doc/tint2.md', docdir) +
+                      install(source_dir, 'doc/manual.html', htmldir) +
+                      install(source_dir, 'doc/readme.html', htmldir) +
+                      install_dir(source_dir, 'doc/images', htmldir) +
+                      install(source_dir, 'doc/tint2.1', mandir, 'man1'))
+
+tint2conf = Executable('tint2conf')
+tint2conf.cflags += CFLAGS
+tint2conf.lflags += LFLAGS
+tint2conf.libs += LIBS
+
+for dep in ['gthread-2.0',
+            'gtk+-x11-2.0']:
+    lib, cf, lf = pkg_config(dep)
+    tint2conf.libs += lib
+    tint2conf.cflags += cf
+    tint2conf.lflags += lf
+
+tint2conf.cflags += ['-DTINT2CONF',
+                     '-DINSTALL_PREFIX=\\"{}\\"'.format(prefix),
+                     '-DLOCALEDIR=\\"{}\\"'.format(localedir),
+                     '-DGETTEXT_PACKAGE=\\"tint2conf\\"',
+                     '-DHAVE_VERSION_H',
+                     '-Wno-shadow']
+
+tint2conf.sources = ['src/util/bt.c',
+                     'src/util/common.c',
+                     'src/util/strnatcmp.c',
+                     'src/util/cache.c',
+                     'src/util/timer.c',
+                     'src/util/test.c',
+                     'src/util/print.c',
+                     'src/util/signals.c',
+                     'src/config.c',
+                     'src/util/server.c',
+                     'src/util/strlcat.c',
+                     'src/launcher/apps-common.c',
+                     'src/launcher/icon-theme-common.c',
+                     'src/tint2conf/md4.c',
+                     'src/tint2conf/main.c',
+                     'src/tint2conf/properties.c',
+                     'src/tint2conf/properties_rw.c',
+                     'src/tint2conf/theme_view.c',
+                     'src/tint2conf/background_gui.c',
+                     'src/tint2conf/gradient_gui.c']
+tint2conf.pos = [os.path.join('src/tint2conf/po', f) for f in os.listdir('src/tint2conf/po') if f.endswith('.po')]
+tint2conf.install_exec = install(build_dir, 'tint2conf', bindir)
+tint2conf.install_data = (install(source_dir, 'src/tint2conf/tint2conf.svg', datarootdir, 'icons/hicolor/scalable/apps') +
+                          install(source_dir, 'src/tint2conf/tint2conf.desktop', datarootdir, 'applications') +
+                          install(source_dir, 'src/tint2conf/tint2conf.xml', datarootdir, 'mime/packages'))
+
+makedirs(build_dir)
+assert 0 == os.system('cd {}; {}/get_version.sh'.format(build_dir, source_dir))
+generate_ninja([tint2, tint2conf], source_dir, build_dir)

packaging/make_ubuntu.sh

@@ -49,7 +49,7 @@ echo "echo \"#define VERSION_STRING \\\"$VERSION\\\"\" > version.h" > $DIR/get_v
 # Copy the debian files into the source directory
 cp -r debian $DIR/debian
 
-for DISTRO in trusty xenial zesty artful bionic
+for DISTRO in trusty xenial artful bionic
 do
     # Cleanup from previous builds
     rm -rf tint2_$VERSION-*

packaging/update_version_status.sh

@@ -15,7 +15,7 @@ git reset --hard
 git pull
 
 
-~/tint2/packaging/version_status.py > packaging.tmp.md
+timeout -k 10 600 ~/tint2/packaging/version_status.py > packaging.tmp.md
 cat packaging.tmp.md > packaging.md
 rm packaging.tmp.md
 

packaging/version_status.py

@@ -289,7 +289,7 @@ def get_gentoo_versions():
 
 def get_void_versions():
   print >> sys.stderr, "Void ..."
-  template = http_download_txt("https://raw.githubusercontent.com/voidlinux/void-packages/master/srcpkgs/tint2/template")
+  template = http_download_txt("https://raw.githubusercontent.com/void-linux/void-packages/master/srcpkgs/tint2/template")
   versions = []
   version = None
   maintainer = None

src/battery/battery.c

@@ -42,6 +42,7 @@ gboolean battery_enabled;
 gboolean battery_tooltip_enabled;
 int percentage_hide;
 static Timer battery_timer;
+static Timer battery_blink_timer;
 
 #define BATTERY_BUF_SIZE 256
 static char buf_bat_line1[BATTERY_BUF_SIZE];
@@ -60,6 +61,9 @@ char *battery_rclick_command;
 char *battery_uwheel_command;
 char *battery_dwheel_command;
 gboolean battery_found;
+gboolean battery_warn;
+gboolean battery_warn_red;
+Background *battery_warn_bg;
 
 char *battery_sys_prefix = (char *)"";
 
@@ -77,6 +81,10 @@ void default_battery()
     battery_low_cmd_sent = FALSE;
     battery_full_cmd_sent = FALSE;
     INIT_TIMER(battery_timer);
+    INIT_TIMER(battery_blink_timer);
+    battery_warn = FALSE;
+    battery_warn_red = FALSE;
+    battery_warn_bg = NULL;
     bat1_has_font = FALSE;
     bat1_font_desc = NULL;
     bat1_format = NULL;
@@ -128,7 +136,9 @@ void cleanup_battery()
     free(ac_disconnected_cmd);
     ac_disconnected_cmd = NULL;
     destroy_timer(&battery_timer);
+    destroy_timer(&battery_blink_timer);
     battery_found = FALSE;
+    free_and_null(battery_warn_bg);
 
     battery_os_free();
 }
@@ -225,7 +235,8 @@ void init_battery()
 
     battery_found = battery_os_init();
 
-    change_timer(&battery_timer, true, 10, 30000, update_battery_tick, 0);
+    if (!battery_timer.enabled_)
+        change_timer(&battery_timer, true, 30000, 30000, update_battery_tick, 0);
 
     update_battery();
 }
@@ -272,6 +283,7 @@ void init_battery_panel(void *p)
         bat1_format = strdup("%p");
         bat2_format = strdup("%t");
     }
+    update_battery_tick(NULL);
 }
 
 void battery_init_fonts()
@@ -308,6 +320,40 @@ void battery_default_font_changed()
     schedule_panel_redraw();
 }
 
+void blink_battery(void *arg)
+{
+    if (!battery_enabled)
+        return;
+    battery_warn_red = battery_warn ? !battery_warn_red : FALSE;
+    if (battery_warn_red && !battery_warn_bg) {
+        battery_warn_bg = calloc(1, sizeof(*battery_warn_bg));
+        *battery_warn_bg = *panel_config.battery.area.bg;
+        battery_warn_bg->fill_color.alpha = 1.0;
+        battery_warn_bg->border.color.alpha = 1.0;
+    }
+    if (battery_warn_red) {
+        battery_warn_bg->fill_color.rgb[0] = 0.6;
+        battery_warn_bg->fill_color.rgb[1] = 0.1;
+        battery_warn_bg->fill_color.rgb[2] = 0.1;
+        battery_warn_bg->border.color.rgb[0] = 0.5;
+        battery_warn_bg->border.color.rgb[1] = 0.0;
+        battery_warn_bg->border.color.rgb[2] = 0.0;
+    } else {
+        battery_warn_bg->fill_color.rgb[0] = 0.9;
+        battery_warn_bg->fill_color.rgb[1] = 0.7;
+        battery_warn_bg->fill_color.rgb[2] = 0.1;
+        battery_warn_bg->border.color.rgb[0] = 0.7;
+        battery_warn_bg->border.color.rgb[1] = 0.5;
+        battery_warn_bg->border.color.rgb[2] = 0.1;
+    }
+    for (int i = 0; i < num_panels; i++) {
+        if (panels[i].battery.area.on_screen) {
+            panels[i].battery.area.bg = battery_warn_bg;
+            schedule_redraw(&panels[i].battery.area);
+        }
+    }
+}
+
 void update_battery_tick(void *arg)
 {
     if (!battery_enabled)
@@ -318,6 +364,7 @@ void update_battery_tick(void *arg)
     gboolean old_ac_connected = battery_state.ac_connected;
     int16_t old_hours = battery_state.time.hours;
     int8_t old_minutes = battery_state.time.minutes;
+    gboolean old_warn = battery_warn;
 
     if (!battery_found) {
         init_battery();
@@ -355,6 +402,20 @@ void update_battery_tick(void *arg)
         battery_full_cmd_sent = FALSE;
     }
 
+    if (!battery_blink_timer.enabled_) {
+        if (battery_state.percentage < battery_low_status &&
+            battery_state.state == BATTERY_DISCHARGING) {
+            change_timer(&battery_blink_timer, true, 10, 1000, blink_battery, 0);
+            battery_warn = TRUE;
+        }
+    } else {
+        if (battery_state.percentage > battery_low_status ||
+            battery_state.state != BATTERY_DISCHARGING) {
+            stop_timer(&battery_blink_timer);
+            battery_warn = FALSE;
+        }
+    }
+
     for (int i = 0; i < num_panels; i++) {
         // Show/hide if needed
         if (!battery_found) {
@@ -368,8 +429,11 @@ void update_battery_tick(void *arg)
         // 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) {
+                old_hours != battery_state.time.hours || old_minutes != battery_state.time.minutes ||
+                old_warn != battery_warn) {
                 panels[i].battery.area.resize_needed = TRUE;
+                if (!battery_warn)
+                    panels[i].battery.area.bg = panel_config.battery.area.bg;
                 schedule_panel_redraw();
             }
         }
@@ -420,6 +484,7 @@ gboolean resize_battery(void *obj)
 void draw_battery(void *obj, cairo_t *c)
 {
     Battery *battery = (Battery *)obj;
+    Panel *panel = (Panel *)battery->area.panel;
     draw_text_area(&battery->area,
                    c,
                    buf_bat_line1,
@@ -428,7 +493,8 @@ void draw_battery(void *obj, cairo_t *c)
                    bat2_font_desc,
                    battery->bat1_posy,
                    battery->bat2_posy,
-                   &battery->font_color);
+                   &battery->font_color,
+                   panel->scale);
 }
 
 void battery_dump_geometry(void *obj, int indent)

src/button/button.c

@@ -269,9 +269,9 @@ int button_compute_desired_size(void *obj)
 {
     Button *button = (Button *)obj;
     Panel *panel = (Panel *)button->area.panel;
-    int horiz_padding = (panel_horizontal ? button->area.paddingxlr : button->area.paddingy);
+    int horiz_padding = (panel_horizontal ? button->area.paddingxlr : button->area.paddingy) * panel->scale;
-    int vert_padding = (panel_horizontal ? button->area.paddingy : button->area.paddingxlr);
+    int vert_padding = (panel_horizontal ? button->area.paddingy : button->area.paddingxlr) * panel->scale;
-    int interior_padding = button->area.paddingx;
+    int interior_padding = button->area.paddingx * panel->scale;
 
     int icon_w, icon_h;
     if (button->backend->icon_name) {
@@ -280,18 +280,17 @@ int button_compute_desired_size(void *obj)
         else
             icon_h = icon_w = button->area.width - left_right_border_width(&button->area) - 2 * horiz_padding;
         if (button->backend->max_icon_size) {
-            icon_w = MIN(icon_w, button->backend->max_icon_size);
+            icon_w = MIN(icon_w, button->backend->max_icon_size * panel->scale);
-            icon_h = MIN(icon_h, button->backend->max_icon_size);
+            icon_h = MIN(icon_h, button->backend->max_icon_size * panel->scale);
         }
     } else {
         icon_h = icon_w = 0;
     }
 
-    int txt_height_ink, txt_height, txt_width;
+    int txt_height, txt_width;
     if (button->backend->text) {
         if (panel_horizontal) {
             get_text_size2(button->backend->font_desc,
-                           &txt_height_ink,
                            &txt_height,
                            &txt_width,
                            panel->area.height,
@@ -300,10 +299,11 @@ int button_compute_desired_size(void *obj)
                            strlen(button->backend->text),
                            PANGO_WRAP_WORD_CHAR,
                            PANGO_ELLIPSIZE_NONE,
-                           FALSE);
+                           button->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT,
+                           FALSE,
+                           panel->scale);
         } else {
             get_text_size2(button->backend->font_desc,
-                           &txt_height_ink,
                            &txt_height,
                            &txt_width,
                            panel->area.height,
@@ -313,10 +313,12 @@ int button_compute_desired_size(void *obj)
                            strlen(button->backend->text),
                            PANGO_WRAP_WORD_CHAR,
                            PANGO_ELLIPSIZE_NONE,
-                           FALSE);
+                           button->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT,
+                           FALSE,
+                           panel->scale);
         }
     } else {
-        txt_height_ink = txt_height = txt_width = 0;
+        txt_height = txt_width = 0;
     }
 
     if (panel_horizontal) {
@@ -336,9 +338,9 @@ gboolean resize_button(void *obj)
     Button *button = (Button *)obj;
     Panel *panel = (Panel *)button->area.panel;
     Area *area = &button->area;
-    int horiz_padding = (panel_horizontal ? button->area.paddingxlr : button->area.paddingy);
+    int horiz_padding = (panel_horizontal ? button->area.paddingxlr : button->area.paddingy) * panel->scale;
-    int vert_padding = (panel_horizontal ? button->area.paddingy : button->area.paddingxlr);
+    int vert_padding = (panel_horizontal ? button->area.paddingy : button->area.paddingxlr) * panel->scale;
-    int interior_padding = button->area.paddingx;
+    int interior_padding = button->area.paddingx * panel->scale;
 
     int icon_w, icon_h;
     if (button->backend->icon_name) {
@@ -347,8 +349,8 @@ gboolean resize_button(void *obj)
         else
             icon_h = icon_w = button->area.width - left_right_border_width(&button->area) - 2 * horiz_padding;
         if (button->backend->max_icon_size) {
-            icon_w = MIN(icon_w, button->backend->max_icon_size);
+            icon_w = MIN(icon_w, button->backend->max_icon_size * panel->scale);
-            icon_h = MIN(icon_h, button->backend->max_icon_size);
+            icon_h = MIN(icon_h, button->backend->max_icon_size * panel->scale);
         }
     } else {
         icon_h = icon_w = 0;
@@ -369,10 +371,9 @@ gboolean resize_button(void *obj)
         available_h = panel->area.height;
     }
 
-    int txt_height_ink, txt_height, txt_width;
+    int txt_height, txt_width;
     if (button->backend->text) {
         get_text_size2(button->backend->font_desc,
-                       &txt_height_ink,
                        &txt_height,
                        &txt_width,
                        available_h,
@@ -381,9 +382,11 @@ gboolean resize_button(void *obj)
                        strlen(button->backend->text),
                        PANGO_WRAP_WORD_CHAR,
                        PANGO_ELLIPSIZE_NONE,
-                       FALSE);
+                       button->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT,
+                       FALSE,
+                       panel->scale);
     } else {
-        txt_height_ink = txt_height = txt_width = 0;
+        txt_height = txt_width = 0;
     }
 
     gboolean result = FALSE;
@@ -436,6 +439,7 @@ gboolean resize_button(void *obj)
 void draw_button(void *obj, cairo_t *c)
 {
     Button *button = obj;
+    Panel *panel = (Panel *)button->area.panel;
 
     if (button->frontend->icon) {
         // Render icon
@@ -457,10 +461,12 @@ void draw_button(void *obj, cairo_t *c)
 
     // Render text
     if (button->backend->text) {
-        PangoLayout *layout = pango_cairo_create_layout(c);
+        PangoContext *context = pango_cairo_create_context(c);
+        pango_cairo_context_set_resolution(context, 96 * panel->scale);
+        PangoLayout *layout = pango_layout_new(context);
 
         pango_layout_set_font_description(layout, button->backend->font_desc);
-        pango_layout_set_width(layout, (button->frontend->textw + 1) * PANGO_SCALE);
+        pango_layout_set_width(layout, (button->frontend->textw + TINT2_PANGO_SLACK) * PANGO_SCALE);
         pango_layout_set_alignment(layout, button->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT);
         pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
@@ -472,9 +478,10 @@ void draw_button(void *obj, cairo_t *c)
                   button->frontend->textx,
                   button->frontend->texty,
                   &button->backend->font_color,
-                  panel_config.font_shadow);
+                  panel_config.font_shadow ? layout : NULL);
 
         g_object_unref(layout);
+        g_object_unref(context);
     }
 }
 

src/clock/clock.c

@@ -173,7 +173,13 @@ gboolean time_format_needs_sec_ticks(char *time_format)
 {
     if (!time_format)
         return FALSE;
-    if (strchr(time_format, 'S') || strchr(time_format, 'T') || strchr(time_format, 'r'))
+    if (strchr(time_format, 'c') ||
+        strchr(time_format, 'r') ||
+        strchr(time_format, 's') ||
+        strchr(time_format, 'S') ||
+        strchr(time_format, 'T') ||
+        strchr(time_format, 'X') ||
+        strchr(time_format, '+'))
         return TRUE;
     return FALSE;
 }
@@ -261,10 +267,8 @@ void clock_default_font_changed()
 }
 
 void clock_compute_text_geometry(Clock *clock,
-                                 int *time_height_ink,
                                  int *time_height,
                                  int *time_width,
-                                 int *date_height_ink,
                                  int *date_height,
                                  int *date_width)
 {
@@ -273,10 +277,8 @@ void clock_compute_text_geometry(Clock *clock,
                                time2_format ? buf_date : NULL,
                                time1_font_desc,
                                time2_font_desc,
-                               time_height_ink,
                                time_height,
                                time_width,
-                               date_height_ink,
                                date_height,
                                date_width);
 }
@@ -306,6 +308,7 @@ gboolean resize_clock(void *obj)
 void draw_clock(void *obj, cairo_t *c)
 {
     Clock *clock = (Clock *)obj;
+    Panel *panel = (Panel *)clock->area.panel;
     draw_text_area(&clock->area,
                    c,
                    buf_time,
@@ -314,7 +317,8 @@ void draw_clock(void *obj, cairo_t *c)
                    time2_font_desc,
                    clock->time1_posy,
                    clock->time2_posy,
-                   &clock->font);
+                   &clock->font,
+                   panel->scale);
 }
 
 void clock_dump_geometry(void *obj, int indent)

src/config.c

@@ -244,7 +244,11 @@ void add_entry(char *key, char *value)
     char *value1 = 0, *value2 = 0, *value3 = 0;
 
     /* Background and border */
-    if (strcmp(key, "rounded") == 0) {
+    if (strcmp(key, "scale_relative_to_dpi") == 0) {
+        ui_scale_dpi_ref = atof(value);
+    } else if (strcmp(key, "scale_relative_to_screen_height") == 0) {
+        ui_scale_monitor_size_ref = atof(value);
+    } else if (strcmp(key, "rounded") == 0) {
         // 'rounded' is the first parameter => alloc a new background
         if (backgrounds->len > 0) {
             Background *bg = &g_array_index(backgrounds, Background, backgrounds->len - 1);
@@ -1012,6 +1016,8 @@ void add_entry(char *key, char *value)
             taskbar_sort_method = TASKBAR_SORT_CENTER;
         } else if (strcmp(value, "title") == 0) {
             taskbar_sort_method = TASKBAR_SORT_TITLE;
+        } else if (strcmp(value, "application") == 0) {
+            taskbar_sort_method = TASKBAR_SORT_APPLICATION;
         } else if (strcmp(value, "lru") == 0) {
             taskbar_sort_method = TASKBAR_SORT_LRU;
         } else if (strcmp(value, "mru") == 0) {

src/execplugin/execplugin.c

@@ -20,6 +20,8 @@
 
 #define MAX_TOOLTIP_LEN 4096
 
+bool debug_executors = false;
+
 void execp_timer_callback(void *arg);
 char *execp_get_tooltip(void *obj);
 void execp_init_fonts();
@@ -304,7 +306,6 @@ void execp_compute_icon_text_geometry(Execp *execp,
                                       int *icon_w,
                                       int *icon_h,
                                       gboolean *text_next_line,
-                                      int *txt_height_ink,
                                       int *txt_height,
                                       int *txt_width,
                                       int *new_size,
@@ -312,9 +313,9 @@ void execp_compute_icon_text_geometry(Execp *execp,
 {
     Panel *panel = (Panel *)execp->area.panel;
     Area *area = &execp->area;
-    *horiz_padding = (panel_horizontal ? area->paddingxlr : area->paddingy);
+    *horiz_padding = (panel_horizontal ? area->paddingxlr : area->paddingy) * panel->scale;
-    *vert_padding = (panel_horizontal ? area->paddingy : area->paddingxlr);
+    *vert_padding = (panel_horizontal ? area->paddingy : area->paddingxlr) * panel->scale;
-    *interior_padding = area->paddingx;
+    *interior_padding = area->paddingx * panel->scale;
 
     if (reload_icon(execp)) {
         if (execp->backend->icon) {
@@ -333,7 +334,7 @@ void execp_compute_icon_text_geometry(Execp *execp,
     int available_w, available_h;
     if (panel_horizontal) {
         available_w = panel->area.width;
-        available_h = area->height - 2 * area->paddingy - left_right_border_width(area);
+        available_h = area->height - 2 * *vert_padding - left_right_border_width(area);
     } else {
         available_w = !text_next_line
                           ? area->width - *icon_w - (*icon_w ? *interior_padding : 0) - 2 * *horiz_padding -
@@ -342,7 +343,6 @@ void execp_compute_icon_text_geometry(Execp *execp,
         available_h = panel->area.height;
     }
     get_text_size2(execp->backend->font_desc,
-                   txt_height_ink,
                    txt_height,
                    txt_width,
                    available_h,
@@ -351,7 +351,9 @@ void execp_compute_icon_text_geometry(Execp *execp,
                    strlen(execp->backend->text),
                    PANGO_WRAP_WORD_CHAR,
                    PANGO_ELLIPSIZE_NONE,
-                   execp->backend->has_markup);
+                   execp->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT,
+                   execp->backend->has_markup,
+                   panel->scale);
 
     *resized = FALSE;
     if (panel_horizontal) {
@@ -371,7 +373,11 @@ void execp_compute_icon_text_geometry(Execp *execp,
             *new_size = *txt_height + 2 * *vert_padding + top_bottom_border_width(area);
             *new_size = MAX(*new_size, *icon_h + 2 * *vert_padding + top_bottom_border_width(area));
         } else {
+            if (strlen(execp->backend->text)) {
                 *new_size = *icon_h + *interior_padding + *txt_height + 2 * *vert_padding + top_bottom_border_width(area);
+            } else {
+                *new_size = *icon_h + 2 * *vert_padding + top_bottom_border_width(area);
+            }
         }
         if (*new_size != area->height) {
             *resized = TRUE;
@@ -385,7 +391,7 @@ int execp_compute_desired_size(void *obj)
     int horiz_padding, vert_padding, interior_padding;
     int icon_w, icon_h;
     gboolean text_next_line;
-    int txt_height_ink, txt_height, txt_width;
+    int txt_height, txt_width;
     int new_size;
     gboolean resized;
     execp_compute_icon_text_geometry(execp,
@@ -395,7 +401,6 @@ int execp_compute_desired_size(void *obj)
                                      &icon_w,
                                      &icon_h,
                                      &text_next_line,
-                                     &txt_height_ink,
                                      &txt_height,
                                      &txt_width,
                                      &new_size,
@@ -410,7 +415,7 @@ gboolean resize_execp(void *obj)
     int horiz_padding, vert_padding, interior_padding;
     int icon_w, icon_h;
     gboolean text_next_line;
-    int txt_height_ink, txt_height, txt_width;
+    int txt_height, txt_width;
     int new_size;
     gboolean resized;
     execp_compute_icon_text_geometry(execp,
@@ -420,7 +425,6 @@ gboolean resize_execp(void *obj)
                                      &icon_w,
                                      &icon_h,
                                      &text_next_line,
-                                     &txt_height_ink,
                                      &txt_height,
                                      &txt_width,
                                      &new_size,
@@ -441,10 +445,17 @@ gboolean resize_execp(void *obj)
                 execp->frontend->texty = (execp->area.height - txt_height) / 2;
                 execp->frontend->textx = execp->frontend->iconx + icon_w + interior_padding;
             } else {
+                if (strlen(execp->backend->text)) {
                     execp->frontend->icony = (execp->area.height - icon_h - interior_padding - txt_height) / 2;
                     execp->frontend->iconx = (execp->area.width - icon_w) / 2;
                     execp->frontend->texty = execp->frontend->icony + icon_h + interior_padding;
                     execp->frontend->textx = (execp->area.width - txt_width) / 2;
+                } else {
+                    execp->frontend->icony = (execp->area.height - icon_h) / 2;
+                    execp->frontend->iconx = (execp->area.width - icon_w) / 2;
+                    execp->frontend->texty = execp->frontend->icony + icon_h + interior_padding;
+                    execp->frontend->textx = (execp->area.width - txt_width) / 2;
+                }
             }
         } else {
             execp->frontend->texty = (execp->area.height - txt_height) / 2;
@@ -458,10 +469,17 @@ gboolean resize_execp(void *obj)
                 execp->frontend->texty = (execp->area.height - txt_height) / 2;
                 execp->frontend->textx = execp->frontend->iconx + icon_w + interior_padding;
             } else {
+                if (strlen(execp->backend->text)) {
                     execp->frontend->icony = (execp->area.height - icon_h - interior_padding - txt_height) / 2;
                     execp->frontend->iconx = left_border_width(&execp->area) + horiz_padding;
                     execp->frontend->texty = execp->frontend->icony + icon_h + interior_padding;
                     execp->frontend->textx = execp->frontend->iconx;
+                } else {
+                    execp->frontend->icony = (execp->area.height - icon_h) / 2;
+                    execp->frontend->iconx = left_border_width(&execp->area) + horiz_padding;
+                    execp->frontend->texty = execp->frontend->icony + icon_h + interior_padding;
+                    execp->frontend->textx = execp->frontend->iconx;
+                }
             }
         } else {
             execp->frontend->texty = (execp->area.height - txt_height) / 2;
@@ -473,10 +491,27 @@ gboolean resize_execp(void *obj)
     return resized;
 }
 
+PangoLayout *create_execp_text_layout(Execp *execp, PangoContext *context)
+{
+    PangoLayout *layout = pango_layout_new(context);
+    pango_layout_set_font_description(layout, execp->backend->font_desc);
+    pango_layout_set_width(layout, (execp->frontend->textw + TINT2_PANGO_SLACK) * PANGO_SCALE);
+    pango_layout_set_height(layout, (execp->frontend->texth + TINT2_PANGO_SLACK) * PANGO_SCALE);
+    pango_layout_set_alignment(layout, execp->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT);
+    pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
+    pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
+    return layout;
+}
+
 void draw_execp(void *obj, cairo_t *c)
 {
     Execp *execp = (Execp *)obj;
-    PangoLayout *layout = pango_cairo_create_layout(c);
+    Panel *panel = (Panel *)execp->area.panel;
+
+    PangoContext *context = pango_cairo_create_context(c);
+    pango_cairo_context_set_resolution(context, 96 * panel->scale);
+    PangoLayout *layout = create_execp_text_layout(execp, context);
+    PangoLayout *shadow_layout = NULL;
 
     if (execp->backend->has_icon && execp->backend->icon) {
         imlib_context_set_image(execp->backend->icon);
@@ -485,15 +520,18 @@ void draw_execp(void *obj, cairo_t *c)
     }
 
     // draw layout
-    pango_layout_set_font_description(layout, execp->backend->font_desc);
+    if (!execp->backend->has_markup) {
-    pango_layout_set_width(layout, (execp->frontend->textw + 1) * PANGO_SCALE);
-    pango_layout_set_alignment(layout, execp->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT);
-    pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
-    pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
-    if (!execp->backend->has_markup)
         pango_layout_set_text(layout, execp->backend->text, strlen(execp->backend->text));
-    else
+    } else {
         pango_layout_set_markup(layout, execp->backend->text, strlen(execp->backend->text));
+        if (panel_config.font_shadow) {
+            shadow_layout = create_execp_text_layout(execp, context);
+            if (!layout_set_markup_strip_colors(shadow_layout, execp->backend->text)) {
+                g_object_unref(shadow_layout);
+                shadow_layout = NULL;
+            }
+        }
+    }
 
     pango_cairo_update_layout(c, layout);
     draw_text(layout,
@@ -501,9 +539,10 @@ void draw_execp(void *obj, cairo_t *c)
               execp->frontend->textx,
               execp->frontend->texty,
               &execp->backend->font_color,
-              panel_config.font_shadow);
+              shadow_layout);
 
     g_object_unref(layout);
+    g_object_unref(context);
 }
 
 void execp_dump_geometry(void *obj, int indent)
@@ -525,12 +564,13 @@ void execp_dump_geometry(void *obj, int indent)
             imlib_context_set_image(tmp);
     }
     fprintf(stderr,
-            "tint2: %*sText: x = %d, y = %d, w = %d, align = %s, text = %s\n",
+            "tint2: %*sText: x = %d, y = %d, w = %d, h = %d, align = %s, text = %s\n",
             indent,
             "",
             execp->frontend->textx,
             execp->frontend->texty,
             execp->frontend->textw,
+            execp->frontend->texth,
             execp->backend->centered ? "center" : "left",
             execp->backend->text);
 }
@@ -631,6 +671,7 @@ void execp_timer_callback(void *arg)
         close(pipe_fd_stderr[0]);
         return;
     } else if (child == 0) {
+        if (debug_executors)
             fprintf(stderr, "tint2: Executing: %s\n", execp->backend->command);
         // We are in the child
         close(pipe_fd_stdout[0]);

src/execplugin/execplugin.h

@@ -8,6 +8,8 @@
 #include "common.h"
 #include "timer.h"
 
+extern bool debug_executors;
+
 // Architecture:
 // Panel panel_config contains an array of Execp, each storing all config options and all the state variables.
 // Only these run commands.

src/freespace/freespace.c

@@ -65,14 +65,14 @@ void cleanup_freespace(Panel *panel)
     panel->freespace_list = NULL;
 }
 
-int freespace_get_max_size(Panel *p)
+int freespace_get_max_size(Panel *panel)
 {
     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)) {
+    for (GList *walk = panel->area.children; walk; walk = g_list_next(walk)) {
         Area *a = (Area *)walk->data;
 
         if (!a->on_screen)
@@ -83,15 +83,15 @@ int freespace_get_max_size(Panel *p)
         }
 
         if (panel_horizontal)
-            size += a->width + p->area.paddingx;
+            size += a->width + panel->area.paddingx * panel->scale;
         else
-            size += a->height + p->area.paddingy;
+            size += a->height + panel->area.paddingy * panel->scale;
     }
 
     if (panel_horizontal)
-        size = p->area.width - size - left_right_border_width(&p->area) - p->area.paddingxlr;
+        size = panel->area.width - size - left_right_border_width(&panel->area) - panel->area.paddingxlr * panel->scale;
     else
-        size = p->area.height - size - top_bottom_border_width(&p->area) - p->area.paddingxlr;
+        size = panel->area.height - size - top_bottom_border_width(&panel->area) - panel->area.paddingxlr * panel->scale;
 
     return size / spacers;
 }

src/init.c

@@ -106,6 +106,7 @@ void handle_env_vars()
     debug_dnd = getenv("DEBUG_DND") != NULL;
     debug_thumbnails = getenv("DEBUG_THUMBNAILS") != NULL;
     debug_timers = getenv("DEBUG_TIMERS") != NULL;
+    debug_executors = getenv("DEBUG_EXECUTORS") != NULL;
     if (debug_fps) {
         init_fps_distribution();
         char *s = getenv("TRACING_FPS_THRESHOLD");
@@ -208,8 +209,8 @@ void init_X11_pre_config()
         exit(EXIT_FAILURE);
     }
     server.x11_fd = ConnectionNumber(server.display);
-    XSetErrorHandler((XErrorHandler)server_catch_error);
+    XSetErrorHandler(server_catch_error);
-    XSetIOErrorHandler((XIOErrorHandler)x11_io_error);
+    XSetIOErrorHandler(x11_io_error);
     server_init_atoms();
     server.screen = DefaultScreen(server.display);
     server.root_win = RootWindow(server.display, server.screen);
@@ -246,8 +247,9 @@ void init(int argc, char **argv)
     if (!config_read()) {
         fprintf(stderr, "tint2: Could not read config file.\n");
         print_usage();
+        warnings_for_timers = false;
         cleanup();
-        return;
+        exit(EXIT_FAILURE);
     }
 
     init_post_config();

src/launcher/launcher.c

@@ -112,7 +112,7 @@ void init_launcher_panel(void *p)
         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->icon_size = launcher_max_icon_size > 0 ? launcher_max_icon_size * panel->scale : 24;
 
     launcher->area.on_screen = TRUE;
     schedule_panel_redraw();
@@ -174,11 +174,12 @@ void cleanup_launcher_theme(Launcher *launcher)
 
 int launcher_compute_icon_size(Launcher *launcher)
 {
+    Panel *panel = launcher->area.panel;
     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);
+                (2 * launcher->area.paddingy * panel->scale);
-    if (launcher_max_icon_size > 0 && icon_size > launcher_max_icon_size)
+    if (launcher_max_icon_size)
-        icon_size = launcher_max_icon_size;
+        icon_size = MIN(icon_size, launcher_max_icon_size * panel->scale);
     return icon_size;
 }
 
@@ -189,6 +190,7 @@ void launcher_compute_geometry(Launcher *launcher,
                                int *icons_per_row,
                                int *margin)
 {
+    Panel *panel = (Panel*)launcher->area.panel;
     int count = 0;
     for (GSList *l = launcher->list_icons; l; l = l->next) {
         LauncherIcon *launcherIcon = (LauncherIcon *)l->data;
@@ -204,25 +206,25 @@ void launcher_compute_geometry(Launcher *launcher,
         if (!count) {
             *size = 0;
         } else {
-            int height = launcher->area.height - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy;
+            int height = launcher->area.height - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy * panel->scale;
             // here icons_per_column always higher than 0
-            *icons_per_column = (height + launcher->area.paddingx) / (*icon_size + launcher->area.paddingx);
+            *icons_per_column = (height + launcher->area.paddingx * panel->scale) / (*icon_size + launcher->area.paddingx * panel->scale);
-            *margin = height - (*icons_per_column - 1) * (*icon_size + launcher->area.paddingx) - *icon_size;
+            *margin = height - (*icons_per_column - 1) * (*icon_size + launcher->area.paddingx * panel->scale) - *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 +
+            *size = left_right_border_width(&launcher->area) + 2 * launcher->area.paddingxlr * panel->scale +
-                    (*icon_size * *icons_per_row) + ((*icons_per_row - 1) * launcher->area.paddingx);
+                    (*icon_size * *icons_per_row) + ((*icons_per_row - 1) * launcher->area.paddingx * panel->scale);
         }
     } else {
         if (!count) {
             *size = 0;
         } else {
-            int width = launcher->area.width - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy;
+            int width = launcher->area.width - top_bottom_border_width(&launcher->area) - 2 * launcher->area.paddingy * panel->scale;
             // here icons_per_row always higher than 0
-            *icons_per_row = (width + launcher->area.paddingx) / (*icon_size + launcher->area.paddingx);
+            *icons_per_row = (width + launcher->area.paddingx * panel->scale) / (*icon_size + launcher->area.paddingx * panel->scale);
-            *margin = width - (*icons_per_row - 1) * (*icon_size + launcher->area.paddingx) - *icon_size;
+            *margin = width - (*icons_per_row - 1) * (*icon_size + launcher->area.paddingx * panel->scale) - *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 +
+            *size = top_bottom_border_width(&launcher->area) + 2 * launcher->area.paddingxlr * panel->scale +
-                    (*icon_size * *icons_per_column) + ((*icons_per_column - 1) * launcher->area.paddingx);
+                    (*icon_size * *icons_per_column) + ((*icons_per_column - 1) * launcher->area.paddingx * panel->scale);
         }
     }
 }
@@ -239,6 +241,7 @@ int launcher_compute_desired_size(void *obj)
 gboolean resize_launcher(void *obj)
 {
     Launcher *launcher = (Launcher *)obj;
+    Panel *panel = (Panel*)launcher->area.panel;
 
     int size, icons_per_column, icons_per_row, margin;
     launcher_compute_geometry(launcher, &size, &launcher->icon_size, &icons_per_column, &icons_per_row, &margin);
@@ -281,11 +284,11 @@ gboolean resize_launcher(void *obj)
     int posx, posy;
     int start;
     if (panel_horizontal) {
-        posy = start = top_border_width(&launcher->area) + launcher->area.paddingy + margin / 2;
+        posy = start = top_border_width(&launcher->area) + launcher->area.paddingy * panel->scale + margin / 2;
-        posx = left_border_width(&launcher->area) + launcher->area.paddingxlr;
+        posx = left_border_width(&launcher->area) + launcher->area.paddingxlr * panel->scale;
     } else {
-        posx = start = left_border_width(&launcher->area) + launcher->area.paddingy + margin / 2;
+        posx = start = left_border_width(&launcher->area) + launcher->area.paddingy * panel->scale + margin / 2;
-        posy = top_border_width(&launcher->area) + launcher->area.paddingxlr;
+        posy = top_border_width(&launcher->area) + launcher->area.paddingxlr * panel->scale;
     }
 
     int i = 0;
@@ -300,17 +303,17 @@ gboolean resize_launcher(void *obj)
         // fprintf(stderr, "tint2: launcher %d : %d,%d\n", i, posx, posy);
         if (panel_horizontal) {
             if (i % icons_per_column) {
-                posy += launcher->icon_size + launcher->area.paddingx;
+                posy += launcher->icon_size + launcher->area.paddingx * panel->scale;
             } else {
                 posy = start;
-                posx += (launcher->icon_size + launcher->area.paddingx);
+                posx += (launcher->icon_size + launcher->area.paddingx * panel->scale);
             }
         } else {
             if (i % icons_per_row) {
-                posx += launcher->icon_size + launcher->area.paddingx;
+                posx += launcher->icon_size + launcher->area.paddingx * panel->scale;
             } else {
                 posx = start;
-                posy += (launcher->icon_size + launcher->area.paddingx);
+                posy += (launcher->icon_size + launcher->area.paddingx * panel->scale);
             }
         }
     }
@@ -396,7 +399,12 @@ void launcher_icon_dump_geometry(void *obj, int indent)
 Imlib_Image scale_icon(Imlib_Image original, int icon_size)
 {
     Imlib_Image icon_scaled;
-    if (original) {
+    if (!icon_size) {
+        icon_scaled = imlib_create_image(1, 1);
+        imlib_context_set_image(icon_scaled);
+        imlib_context_set_color(255, 255, 255, 255);
+        imlib_image_fill_rectangle(0, 0, icon_size, icon_size);
+    } else if (original) {
         imlib_context_set_image(original);
         icon_scaled = imlib_create_cropped_scaled_image(0,
                                                         0,

src/panel.c

@@ -79,11 +79,16 @@ int num_panels;
 GArray *backgrounds;
 GArray *gradients;
 
+double ui_scale_dpi_ref;
+double ui_scale_monitor_size_ref;
+
 Imlib_Image default_icon;
 char *default_font = NULL;
 
 void default_panel()
 {
+    ui_scale_dpi_ref = 0;
+    ui_scale_monitor_size_ref = 0;
     panels = NULL;
     num_panels = 0;
     default_icon = NULL;
@@ -218,6 +223,17 @@ void init_panel()
 
         if (panel_config.monitor < 0)
             p->monitor = i;
+        if (ui_scale_dpi_ref > 0 && server.monitors[p->monitor].dpi > 0)
+            p->scale = server.monitors[p->monitor].dpi / ui_scale_dpi_ref;
+        else
+            p->scale = 1;
+        if (ui_scale_monitor_size_ref > 0)
+            p->scale *= server.monitors[p->monitor].height / ui_scale_monitor_size_ref;
+        if (p->scale > 8 || p->scale < 1./8) {
+            fprintf(stderr, RED "tint2: panel %d having scale %g outside bounds, resetting to 1.0" RESET "\n", i + 1, p->scale);
+            p->scale = 1;
+        }
+        fprintf(stderr, BLUE "tint2: panel %d uses scale %g " RESET "\n", i + 1, p->scale);
         if (!p->area.bg)
             p->area.bg = &g_array_index(backgrounds, Background, 0);
         p->area.parent = p;
@@ -355,6 +371,19 @@ void panel_compute_size(Panel *panel)
         }
     }
 
+    if (!panel->fractional_width) {
+        if (panel_horizontal)
+            panel->area.width *= panel->scale;
+        else
+            panel->area.height *= panel->scale;
+    }
+    if (!panel->fractional_height) {
+        if (panel_horizontal)
+            panel->area.height *= panel->scale;
+        else
+            panel->area.width *= panel->scale;
+    }
+
     if (panel->area.width + panel->marginx > server.monitors[panel->monitor].width)
         panel->area.width = server.monitors[panel->monitor].width - panel->marginx;
     if (panel->area.height + panel->marginy > server.monitors[panel->monitor].height)
@@ -449,9 +478,9 @@ gboolean resize_panel(void *obj)
             if (!taskbar->area.on_screen)
                 continue;
             if (panel_horizontal)
-                taskbar->area.width = 2 * taskbar->area.paddingxlr;
+                taskbar->area.width = 2 * taskbar->area.paddingxlr * panel->scale;
             else
-                taskbar->area.height = 2 * taskbar->area.paddingxlr;
+                taskbar->area.height = 2 * taskbar->area.paddingxlr * panel->scale;
             if (taskbarname_enabled && taskbar->area.children) {
                 Area *name = (Area *)taskbar->area.children->data;
                 if (name->on_screen) {
@@ -468,9 +497,9 @@ gboolean resize_panel(void *obj)
                     continue;
                 if (!first_child) {
                     if (panel_horizontal)
-                        taskbar->area.width += taskbar->area.paddingx;
+                        taskbar->area.width += taskbar->area.paddingx * panel->scale;
                     else
-                        taskbar->area.height += taskbar->area.paddingy;
+                        taskbar->area.height += taskbar->area.paddingy * panel->scale;
                 }
                 first_child = FALSE;
             }
@@ -528,6 +557,8 @@ gboolean resize_panel(void *obj)
                 }
             } else if (taskbar_alignment == ALIGN_CENTER) {
                 slack /= 2;
+                Taskbar *left_taskbar = NULL;
+                Taskbar *right_taskbar = NULL;
                 for (int i = 0; i < panel->num_desktops; i++) {
                     Taskbar *taskbar = &panel->taskbar[i];
                     if (!taskbar->area.on_screen)
@@ -537,6 +568,7 @@ gboolean resize_panel(void *obj)
                     else
                         taskbar->area.height += slack;
                     taskbar->area.alignment = ALIGN_RIGHT;
+                    left_taskbar = taskbar;
                     break;
                 }
                 for (int i = panel->num_desktops - 1; i >= 0; i--) {
@@ -548,8 +580,11 @@ gboolean resize_panel(void *obj)
                     else
                         taskbar->area.height += slack;
                     taskbar->area.alignment = ALIGN_LEFT;
+                    right_taskbar = taskbar;
                     break;
                 }
+                if (left_taskbar == right_taskbar)
+                    left_taskbar->area.alignment = ALIGN_CENTER;
             }
         } else {
             // No tasks => expand the first visible taskbar

src/panel.h

@@ -95,6 +95,8 @@ extern gboolean debug_fps;
 extern double tracing_fps_threshold;
 extern gboolean debug_frames;
 extern gboolean debug_thumbnails;
+extern double ui_scale_dpi_ref;
+extern double ui_scale_monitor_size_ref;
 
 typedef struct Panel {
     Area area;
@@ -117,6 +119,7 @@ typedef struct Panel {
     int mouse_pressed_alpha;
     int mouse_pressed_saturation;
     int mouse_pressed_brightness;
+    double scale;
 
     // Per-panel parameters and states for Taskbar and Task
     GlobalTaskbar g_taskbar;

src/separator/separator.c

@@ -115,31 +115,33 @@ void cleanup_separator()
 int separator_compute_desired_size(void *obj)
 {
     Separator *separator = (Separator *)obj;
+    Panel *panel = (Panel*)separator->area.panel;
     if (!separator->area.on_screen)
         return 0;
 
     if (panel_horizontal)
-        return separator->thickness + 2 * separator->area.paddingxlr + left_right_border_width(&separator->area);
+        return separator->thickness + 2 * separator->area.paddingxlr * panel->scale + left_right_border_width(&separator->area);
     else
-        return separator->thickness + 2 * separator->area.paddingxlr + top_bottom_border_width(&separator->area);
+        return separator->thickness + 2 * separator->area.paddingxlr * panel->scale + top_bottom_border_width(&separator->area);
 }
 
 gboolean resize_separator(void *obj)
 {
     Separator *separator = (Separator *)obj;
+    Panel *panel = (Panel*)separator->area.panel;
     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->thickness + 2 * separator->area.paddingxlr * panel->scale + left_right_border_width(&separator->area);
         separator->length =
-            separator->area.height - 2 * separator->area.paddingy - top_bottom_border_width(&separator->area);
+            separator->area.height - 2 * separator->area.paddingy * panel->scale - top_bottom_border_width(&separator->area);
     } else {
         separator->area.height =
-            separator->thickness + 2 * separator->area.paddingxlr + top_bottom_border_width(&separator->area);
+            separator->thickness + 2 * separator->area.paddingxlr * panel->scale + top_bottom_border_width(&separator->area);
         separator->length =
-            separator->area.width - 2 * separator->area.paddingy - left_right_border_width(&separator->area);
+            separator->area.width - 2 * separator->area.paddingy * panel->scale - left_right_border_width(&separator->area);
     }
 
     schedule_redraw(&separator->area);

src/systray/systraybar.c

@@ -141,11 +141,12 @@ void init_systray_panel(void *p)
 
 void systray_compute_geometry(int *size)
 {
+    Panel *panel = (Panel*)systray.area.panel;
     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;
+        MAX(left_right_border_width(&systray.area), top_bottom_border_width(&systray.area)) + 2 * systray.area.paddingy * panel->scale;
     if (systray_max_icon_size > 0)
-        systray.icon_size = MIN(systray.icon_size, systray_max_icon_size);
+        systray.icon_size = MIN(systray.icon_size, systray_max_icon_size * panel->scale);
 
     int count = 0;
     for (GSList *l = systray.list_icons; l; l = l->next) {
@@ -153,24 +154,24 @@ void systray_compute_geometry(int *size)
     }
 
     if (panel_horizontal) {
-        int height = systray.area.height - top_bottom_border_width(&systray.area) - 2 * systray.area.paddingy;
+        int height = systray.area.height - top_bottom_border_width(&systray.area) - 2 * systray.area.paddingy * panel->scale;
         // here icons_per_column always higher than 0
-        systray.icons_per_column = (height + systray.area.paddingx) / (systray.icon_size + systray.area.paddingx);
+        systray.icons_per_column = (height + systray.area.paddingx * panel->scale) / (systray.icon_size + systray.area.paddingx * panel->scale);
         systray.margin =
-            height - (systray.icons_per_column - 1) * (systray.icon_size + systray.area.paddingx) - systray.icon_size;
+            height - (systray.icons_per_column - 1) * (systray.icon_size + systray.area.paddingx * panel->scale) - 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 +
+        *size = left_right_border_width(&systray.area) + 2 * systray.area.paddingxlr * panel->scale +
-                (systray.icon_size * systray.icons_per_row) + ((systray.icons_per_row - 1) * systray.area.paddingx);
+                (systray.icon_size * systray.icons_per_row) + ((systray.icons_per_row - 1) * systray.area.paddingx * panel->scale);
     } else {
-        int width = systray.area.width - left_right_border_width(&systray.area) - 2 * systray.area.paddingy;
+        int width = systray.area.width - left_right_border_width(&systray.area) - 2 * systray.area.paddingy * panel->scale;
         // here icons_per_row always higher than 0
-        systray.icons_per_row = (width + systray.area.paddingx) / (systray.icon_size + systray.area.paddingx);
+        systray.icons_per_row = (width + systray.area.paddingx * panel->scale) / (systray.icon_size + systray.area.paddingx * panel->scale);
         systray.margin =
-            width - (systray.icons_per_row - 1) * (systray.icon_size + systray.area.paddingx) - systray.icon_size;
+            width - (systray.icons_per_row - 1) * (systray.icon_size + systray.area.paddingx * panel->scale) - 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) +
+        *size = top_bottom_border_width(&systray.area) + (2 * systray.area.paddingxlr * panel->scale) +
                 (systray.icon_size * systray.icons_per_column) +
-                ((systray.icons_per_column - 1) * systray.area.paddingx);
+                ((systray.icons_per_column - 1) * systray.area.paddingx * panel->scale);
     }
 }
 
@@ -281,13 +282,13 @@ void on_change_systray(void *obj)
     int posx, posy;
     int start;
     if (panel_horizontal) {
-        posy = start = top_border_width(&panel->area) + panel->area.paddingy + top_border_width(&systray.area) +
+        posy = start = top_border_width(&panel->area) + panel->area.paddingy * panel->scale + top_border_width(&systray.area) +
-                       systray.area.paddingy + systray.margin / 2;
+                       systray.area.paddingy * panel->scale + systray.margin / 2;
-        posx = systray.area.posx + left_border_width(&systray.area) + systray.area.paddingxlr;
+        posx = systray.area.posx + left_border_width(&systray.area) + systray.area.paddingxlr * panel->scale;
     } else {
-        posx = start = left_border_width(&panel->area) + panel->area.paddingy + left_border_width(&systray.area) +
+        posx = start = left_border_width(&panel->area) + panel->area.paddingy * panel->scale + left_border_width(&systray.area) +
-                       systray.area.paddingy + systray.margin / 2;
+                       systray.area.paddingy * panel->scale + systray.margin / 2;
-        posy = systray.area.posy + top_border_width(&systray.area) + systray.area.paddingxlr;
+        posy = systray.area.posy + top_border_width(&systray.area) + systray.area.paddingxlr * panel->scale;
     }
 
     TrayWindow *traywin;
@@ -312,17 +313,17 @@ void on_change_systray(void *obj)
         traywin->height = systray.icon_size;
         if (panel_horizontal) {
             if (i % systray.icons_per_column) {
-                posy += systray.icon_size + systray.area.paddingx;
+                posy += systray.icon_size + systray.area.paddingx * panel->scale;
             } else {
                 posy = start;
-                posx += (systray.icon_size + systray.area.paddingx);
+                posx += (systray.icon_size + systray.area.paddingx * panel->scale);
             }
         } else {
             if (i % systray.icons_per_row) {
-                posx += systray.icon_size + systray.area.paddingx;
+                posx += systray.icon_size + systray.area.paddingx * panel->scale;
             } else {
                 posx = start;
-                posy += (systray.icon_size + systray.area.paddingx);
+                posy += (systray.icon_size + systray.area.paddingx * panel->scale);
             }
         }
 

src/taskbar/task.c

@@ -107,6 +107,21 @@ Task *add_task(Window win)
              (int)win,
              task_template.title ? task_template.title : "null");
 
+    // get application name
+    // use res_class property of WM_CLASS as res_name is easily overridable by user
+    XClassHint *classhint = XAllocClassHint();
+    if (classhint && XGetClassHint(server.display, win, classhint))
+        task_template.application = strdup(classhint->res_class);
+    else
+        task_template.application = strdup("Untitled");
+    if (classhint) {
+        if (classhint->res_name)
+            XFree(classhint->res_name);
+        if (classhint->res_class)
+            XFree(classhint->res_class);
+        XFree(classhint);
+    }
+
     GPtrArray *task_buttons = g_ptr_array_new();
     for (int j = 0; j < panels[monitor].num_desktops; j++) {
         if (task_template.desktop != ALL_DESKTOPS && task_template.desktop != j)
@@ -132,6 +147,7 @@ Task *add_task(Window win)
             task_instance->area.on_screen = always_show_all_desktop_tasks;
         }
         task_instance->title = task_template.title;
+        task_instance->application = task_template.application;
         if (panels[monitor].g_task.tooltip_enabled) {
             task_instance->area._get_tooltip_text = task_get_tooltip;
             task_instance->area._get_tooltip_image = task_get_thumbnail;
@@ -208,12 +224,14 @@ void remove_task(Task *task)
 
     Window win = task->win;
 
-    // free title and icon just for the first task
+    // free title, icon and application name just for the first task
     // even with task_on_all_desktop and with task_on_all_panel
     if (task->title)
         free(task->title);
     if (task->thumbnail)
         cairo_surface_destroy(task->thumbnail);
+    if (task->application)
+        free(task->application);
     task_remove_icon(task);
 
     GPtrArray *task_buttons = g_hash_table_lookup(win_to_task, &win);
@@ -381,7 +399,7 @@ void task_update_icon(Task *task)
         task->icon[k] = adjust_icon(orig_image,
                                     panel->g_task.alpha[k],
                                     panel->g_task.saturation[k],
-                                    panel->g_task.brightness[k] != 0);
+                                    panel->g_task.brightness[k]);
         if (panel_config.mouse_effects) {
             task->icon_hover[k] = adjust_icon(task->icon[k],
                                               panel_config.mouse_over_alpha,
@@ -429,7 +447,7 @@ void draw_task_icon(Task *task, int text_width)
         else
             task->_icon_x = (task->area.width - panel->g_task.icon_size1) / 2;
     } else {
-        task->_icon_x = left_border_width(&task->area) + task->area.paddingxlr;
+        task->_icon_x = left_border_width(&task->area) + task->area.paddingxlr * panel->scale;
     }
 
     // Render
@@ -459,11 +477,13 @@ void draw_task(void *obj, cairo_t *c)
 
     task->_text_width = 0;
     if (panel->g_task.has_text) {
-        PangoLayout *layout = pango_cairo_create_layout(c);
+        PangoContext *context = pango_cairo_create_context(c);
+        pango_cairo_context_set_resolution(context, 96 * panel->scale);
+        PangoLayout *layout = pango_layout_new(context);
         pango_layout_set_font_description(layout, panel->g_task.font_desc);
         pango_layout_set_text(layout, task->title, -1);
 
-        pango_layout_set_width(layout, (((Taskbar *)task->area.parent)->text_width + 1) * PANGO_SCALE);
+        pango_layout_set_width(layout, (((Taskbar *)task->area.parent)->text_width + TINT2_PANGO_SLACK) * PANGO_SCALE);
         pango_layout_set_height(layout, panel->g_task.text_height * PANGO_SCALE);
         pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
@@ -477,9 +497,10 @@ void draw_task(void *obj, cairo_t *c)
         task->_text_posy = (panel->g_task.area.height - task->_text_height) / 2.0;
 
         Color *config_text = &panel->g_task.font[task->current_state];
-        draw_text(layout, c, panel->g_task.text_posx, task->_text_posy, config_text, panel->font_shadow);
+        draw_text(layout, c, panel->g_task.text_posx, task->_text_posy, config_text, panel->font_shadow ? layout : NULL);
 
         g_object_unref(layout);
+        g_object_unref(context);
     }
 
     if (panel->g_task.has_icon)
@@ -532,7 +553,7 @@ 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;
+    int size = (panel_horizontal ? panel->g_task.maximum_width : panel->g_task.maximum_height) * panel->scale;
     return size;
 }
 
@@ -652,12 +673,13 @@ void task_refresh_thumbnail(Task *task)
         return;
     if (task->current_state == TASK_ICONIFIED)
         return;
+    Panel *panel = (Panel*)task->area.panel;
     double now = get_time();
     if (now - task->thumbnail_last_update < 0.1)
         return;
     if (debug_thumbnails)
         fprintf(stderr, "tint2: thumbnail for window: %s" RESET "\n", task->title ? task->title : "");
-    cairo_surface_t *thumbnail = get_window_thumbnail(task->win, panel_config.g_task.thumbnail_width);
+    cairo_surface_t *thumbnail = get_window_thumbnail(task->win, panel_config.g_task.thumbnail_width * panel->scale);
     if (!thumbnail)
         return;
     if (task->thumbnail)
@@ -754,8 +776,8 @@ void blink_urgent(void *arg)
     GSList *urgent_task = urgent_list;
     while (urgent_task) {
         Task *t = urgent_task->data;
-        if (t->urgent_tick < max_tick_urgent) {
+        if (t->urgent_tick <= max_tick_urgent) {
-            if (t->urgent_tick++ % 2)
+            if (++t->urgent_tick % 2)
                 set_task_state(t, TASK_URGENT);
             else
                 set_task_state(t, window_is_iconified(t->win) ? TASK_ICONIFIED : TASK_NORMAL);

src/taskbar/task.h

@@ -68,6 +68,7 @@ typedef struct Task {
     Color icon_color_hover;
     Color icon_color_press;
     char *title;
+    char *application;
     int urgent_tick;
     // These may not be up-to-date
     int win_x;

src/taskbar/taskbar.c

@@ -238,15 +238,15 @@ void init_taskbar_panel(void *p)
     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.posy = top_border_width(&panel->area) + panel->area.paddingy * panel->scale;
         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->scale;
         panel->g_taskbar.area_name.posy = panel->g_taskbar.area.posy;
         panel->g_taskbar.area_name.height = panel->g_taskbar.area.height;
     } else {
-        panel->g_taskbar.area.posx = left_border_width(&panel->area) + panel->area.paddingy;
+        panel->g_taskbar.area.posx = left_border_width(&panel->area) + panel->area.paddingy * panel->scale;
         panel->g_taskbar.area.width =
-            panel->area.width - left_right_border_width(&panel->area) - 2 * panel->area.paddingy;
+            panel->area.width - left_right_border_width(&panel->area) - 2 * panel->area.paddingy * panel->scale;
         panel->g_taskbar.area_name.posx = panel->g_taskbar.area.posx;
         panel->g_taskbar.area_name.width = panel->g_taskbar.area.width;
     }
@@ -304,19 +304,19 @@ void init_taskbar_panel(void *p)
     if (panel_horizontal) {
         panel->g_task.area.posy = panel->g_taskbar.area.posy +
                                   top_bg_border_width(panel->g_taskbar.background[TASKBAR_NORMAL]) +
-                                  panel->g_taskbar.area.paddingy;
+                                  panel->g_taskbar.area.paddingy * panel->scale;
         panel->g_task.area.width = panel->g_task.maximum_width;
         panel->g_task.area.height = panel->g_taskbar.area.height -
                                     top_bottom_bg_border_width(panel->g_taskbar.background[TASKBAR_NORMAL]) -
-                                    2 * panel->g_taskbar.area.paddingy;
+                                    2 * panel->g_taskbar.area.paddingy * panel->scale;
     } else {
         panel->g_task.area.posx = panel->g_taskbar.area.posx +
                                   left_bg_border_width(panel->g_taskbar.background[TASKBAR_NORMAL]) +
-                                  panel->g_taskbar.area.paddingy;
+                                  panel->g_taskbar.area.paddingy * panel->scale;
         panel->g_task.area.width = panel->g_taskbar.area.width -
                                    left_right_bg_border_width(panel->g_taskbar.background[TASKBAR_NORMAL]) -
-                                   2 * panel->g_taskbar.area.paddingy;
+                                   2 * panel->g_taskbar.area.paddingy * panel->scale;
-        panel->g_task.area.height = panel->g_task.maximum_height;
+        panel->g_task.area.height = panel->g_task.maximum_height * panel->scale;
     }
 
     for (int j = 0; j < TASK_STATE_COUNT; ++j) {
@@ -333,9 +333,8 @@ void init_taskbar_panel(void *p)
     }
 
     // compute vertical position : text and icon
-    int height_ink, height, width;
+    int height, width;
     get_text_size2(panel->g_task.font_desc,
-                   &height_ink,
                    &height,
                    &width,
                    panel->area.height,
@@ -344,17 +343,19 @@ void init_taskbar_panel(void *p)
                    5,
                    PANGO_WRAP_WORD_CHAR,
                    PANGO_ELLIPSIZE_END,
-                   FALSE);
+                   panel->g_task.centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT,
+                   FALSE,
+                   panel->scale);
 
-    panel->g_task.text_posx = left_bg_border_width(panel->g_task.background[0]) + panel->g_task.area.paddingxlr;
+    panel->g_task.text_posx = left_bg_border_width(panel->g_task.background[0]) + panel->g_task.area.paddingxlr * panel->scale;
     panel->g_task.text_height =
-        panel->g_task.area.height - (2 * panel->g_task.area.paddingy) - top_bottom_border_width(&panel->g_task.area);
+        panel->g_task.area.height - (2 * panel->g_task.area.paddingy * panel->scale) - top_bottom_border_width(&panel->g_task.area);
     if (panel->g_task.has_icon) {
-        panel->g_task.icon_size1 = MIN(MIN(panel->g_task.maximum_width, panel->g_task.maximum_height),
+        panel->g_task.icon_size1 = MIN(MIN(panel->g_task.maximum_width * panel->scale, panel->g_task.maximum_height * panel->scale),
                                        MIN(panel->g_task.area.width, panel->g_task.area.height)) -
-                                   2 * panel->g_task.area.paddingy - MAX(left_right_border_width(&panel->g_task.area),
+                                   2 * panel->g_task.area.paddingy * panel->scale - MAX(left_right_border_width(&panel->g_task.area),
                                                                          top_bottom_border_width(&panel->g_task.area));
-        panel->g_task.text_posx += panel->g_task.icon_size1 + panel->g_task.area.paddingx;
+        panel->g_task.text_posx += panel->g_task.icon_size1 + panel->g_task.area.paddingx * panel->scale;
         panel->g_task.icon_posy = (panel->g_task.area.height - panel->g_task.icon_size1) / 2;
     }
 
@@ -573,12 +574,12 @@ gboolean resize_taskbar(void *obj)
             }
         }
         taskbar->text_width = text_width - panel->g_task.text_posx - right_border_width(&panel->g_task.area) -
-                              panel->g_task.area.paddingxlr;
+                              panel->g_task.area.paddingxlr * panel->scale;
     } else {
-        relayout_with_constraint(&taskbar->area, panel->g_task.maximum_height);
+        relayout_with_constraint(&taskbar->area, panel->g_task.maximum_height * panel->scale);
 
-        taskbar->text_width = taskbar->area.width - (2 * panel->g_taskbar.area.paddingy) - panel->g_task.text_posx -
+        taskbar->text_width = taskbar->area.width - (2 * panel->g_taskbar.area.paddingy * panel->scale) - panel->g_task.text_posx -
-                              right_border_width(&panel->g_task.area) - panel->g_task.area.paddingxlr;
+                              right_border_width(&panel->g_task.area) - panel->g_task.area.paddingxlr * panel->scale;
     }
     return FALSE;
 }
@@ -734,6 +735,14 @@ gint compare_task_titles(Task *a, Task *b, Taskbar *taskbar)
     return strnatcasecmp(a->title ? a->title : "", b->title ? b->title : "");
 }
 
+gint compare_task_applications(Task *a, Task *b, Taskbar *taskbar)
+{
+    int trivial = compare_tasks_trivial(a, b, taskbar);
+    if (trivial != NONTRIVIAL)
+        return trivial;
+    return strnatcasecmp(a->application ? a->application : "", b->application ? b->application : "");
+}
+
 gint compare_tasks(Task *a, Task *b, Taskbar *taskbar)
 {
     int trivial = compare_tasks_trivial(a, b, taskbar);
@@ -745,6 +754,8 @@ gint compare_tasks(Task *a, Task *b, Taskbar *taskbar)
         return compare_task_centers(a, b, taskbar);
     } else if (taskbar_sort_method == TASKBAR_SORT_TITLE) {
         return compare_task_titles(a, b, taskbar);
+    } else if (taskbar_sort_method == TASKBAR_SORT_APPLICATION) {
+        return compare_task_applications(a, b, taskbar);
     } else if (taskbar_sort_method == TASKBAR_SORT_LRU) {
         return compare_timespecs(&a->last_activation_time, &b->last_activation_time);
     } else if (taskbar_sort_method == TASKBAR_SORT_MRU) {
@@ -834,7 +845,8 @@ void taskbar_update_thumbnails(void *arg)
                  c;
                  c = c->next) {
                 Task *t = (Task *)c->data;
-                if ((mode == THUMB_MODE_ALL && t->current_state == TASK_ACTIVE && !g_list_find(taskbar_thumbnail_jobs_done, t)) || (mode == THUMB_MODE_ACTIVE_WINDOW && t->current_state == TASK_ACTIVE) ||
+                if ((mode == THUMB_MODE_ALL && t->current_state == TASK_ACTIVE && !g_list_find(taskbar_thumbnail_jobs_done, t)) ||
+                    (mode == THUMB_MODE_ACTIVE_WINDOW && t->current_state == TASK_ACTIVE) ||
                     (mode == THUMB_MODE_TOOLTIP_WINDOW && g_tooltip.mapped && g_tooltip.area == &t->area)) {
                     task_refresh_thumbnail(t);
                     if (mode == THUMB_MODE_ALL)

src/taskbar/taskbar.h

@@ -21,6 +21,7 @@ typedef enum TaskbarSortMethod {
     TASKBAR_NOSORT = 0,
     TASKBAR_SORT_CENTER,
     TASKBAR_SORT_TITLE,
+    TASKBAR_SORT_APPLICATION,
     TASKBAR_SORT_LRU,
     TASKBAR_SORT_MRU,
 } TaskbarSortMethod;

src/taskbar/taskbarname.c

@@ -134,9 +134,8 @@ int taskbarname_compute_desired_size(void *obj)
 {
     TaskbarName *taskbar_name = (TaskbarName *)obj;
     Panel *panel = (Panel *)taskbar_name->area.panel;
-    int name_height, name_width, name_height_ink;
+    int name_height, name_width;
     get_text_size2(panel_config.taskbarname_font_desc,
-                   &name_height_ink,
                    &name_height,
                    &name_width,
                    panel->area.height,
@@ -145,12 +144,14 @@ int taskbarname_compute_desired_size(void *obj)
                    strlen(taskbar_name->name),
                    PANGO_WRAP_WORD_CHAR,
                    PANGO_ELLIPSIZE_NONE,
-                   FALSE);
+                   PANGO_ALIGN_CENTER,
+                   FALSE,
+                   panel->scale);
 
     if (panel_horizontal) {
-        return name_width + 2 * taskbar_name->area.paddingxlr + left_right_border_width(&taskbar_name->area);
+        return name_width + 2 * taskbar_name->area.paddingxlr * panel->scale + left_right_border_width(&taskbar_name->area);
     } else {
-        return name_height + 2 * taskbar_name->area.paddingxlr + top_bottom_border_width(&taskbar_name->area);
+        return name_height + 2 * taskbar_name->area.paddingxlr * panel->scale + top_bottom_border_width(&taskbar_name->area);
     }
 }
 
@@ -161,9 +162,8 @@ gboolean resize_taskbarname(void *obj)
 
     schedule_redraw(&taskbar_name->area);
 
-    int name_height, name_width, name_height_ink;
+    int name_height, name_width;
     get_text_size2(panel_config.taskbarname_font_desc,
-                   &name_height_ink,
                    &name_height,
                    &name_width,
                    panel->area.height,
@@ -172,7 +172,9 @@ gboolean resize_taskbarname(void *obj)
                    strlen(taskbar_name->name),
                    PANGO_WRAP_WORD_CHAR,
                    PANGO_ELLIPSIZE_NONE,
-                   FALSE);
+                   PANGO_ALIGN_CENTER,
+                   FALSE,
+                   panel->scale);
 
     gboolean result = FALSE;
     int new_size = taskbarname_compute_desired_size(obj);
@@ -195,11 +197,14 @@ gboolean resize_taskbarname(void *obj)
 void draw_taskbarname(void *obj, cairo_t *c)
 {
     TaskbarName *taskbar_name = obj;
+    Panel *panel = (Panel *)taskbar_name->area.panel;
     Taskbar *taskbar = taskbar_name->area.parent;
     Color *config_text = (taskbar->desktop == server.desktop) ? &taskbarname_active_font : &taskbarname_font;
 
     // draw content
-    PangoLayout *layout = pango_cairo_create_layout(c);
+    PangoContext *context = pango_cairo_create_context(c);
+    pango_cairo_context_set_resolution(context, 96 * panel->scale);
+    PangoLayout *layout = pango_layout_new(context);
     pango_layout_set_font_description(layout, panel_config.taskbarname_font_desc);
     pango_layout_set_width(layout, taskbar_name->area.width * PANGO_SCALE);
     pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
@@ -210,9 +215,10 @@ void draw_taskbarname(void *obj, cairo_t *c)
     cairo_set_source_rgba(c, config_text->rgb[0], config_text->rgb[1], config_text->rgb[2], config_text->alpha);
 
     pango_cairo_update_layout(c, layout);
-    draw_text(layout, c, 0, taskbar_name->posy, config_text, ((Panel *)taskbar_name->area.panel)->font_shadow);
+    draw_text(layout, c, 0, taskbar_name->posy, config_text, ((Panel *)taskbar_name->area.panel)->font_shadow ? layout : NULL);
 
     g_object_unref(layout);
+    g_object_unref(context);
 }
 
 void update_desktop_names()

src/tint2conf/CMakeLists.txt

@@ -20,6 +20,7 @@ include_directories( ../util
                      ${RSVG_INCLUDE_DIRS} )
 
 set(SOURCES ../util/common.c
+            ../util/bt.c
             ../util/strnatcmp.c
             ../util/cache.c
             ../util/timer.c

src/tint2conf/main.c

@@ -383,6 +383,11 @@ static void menuAbout()
 
 // ====== Theme import/copy/delete ======
 
+static void free_data(gpointer data, gpointer userdata)
+{
+    g_free(data);
+}
+
 // Shows open dialog and copies the selected files to ~ without overwrite.
 static void menuImportFile()
 {
@@ -407,7 +412,7 @@ static void menuImportFile()
         gchar *newpath = import_no_overwrite(l->data);
         g_free(newpath);
     }
-    g_slist_foreach(list, (GFunc)g_free, NULL);
+    g_slist_foreach(list, free_data, NULL);
     g_slist_free(list);
     gtk_widget_destroy(dialog);
 }

src/tint2conf/properties.c

@@ -22,6 +22,7 @@
 #include "gradient_gui.h"
 #include "strlcat.h"
 
+GtkWidget *scale_relative_to_dpi, *scale_relative_to_screen_height;
 GtkWidget *panel_width, *panel_height, *panel_margin_x, *panel_margin_y, *panel_padding_x, *panel_padding_y,
     *panel_spacing;
 GtkWidget *panel_wm_menu, *panel_dock, *panel_autohide, *panel_autohide_show_time, *panel_autohide_hide_time,
@@ -600,6 +601,32 @@ void create_panel(GtkWidget *parent)
                            "for centered panels, it is evenly distributed on both sides of the panel."),
                          NULL);
 
+    row++;
+    col = 2;
+    label = gtk_label_new(_("Scale relative to DPI"));
+    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++;
+
+    scale_relative_to_dpi = gtk_spin_button_new_with_range(0, 9000, 1);
+    gtk_widget_show(scale_relative_to_dpi);
+    gtk_table_attach(GTK_TABLE(table), scale_relative_to_dpi, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    row++;
+    col = 2;
+    label = gtk_label_new(_("Scale relative to screen height"));
+    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++;
+
+    scale_relative_to_screen_height = gtk_spin_button_new_with_range(0, 9000, 1);
+    gtk_widget_show(scale_relative_to_screen_height);
+    gtk_table_attach(GTK_TABLE(table), scale_relative_to_screen_height, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
     change_paragraph(parent);
 
     label = gtk_label_new(_("<b>Appearance</b>"));
@@ -2691,6 +2718,7 @@ void create_taskbar(GtkWidget *parent)
     col++;
     gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_sort_order), _("None"));
     gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_sort_order), _("By title"));
+    gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_sort_order), _("By application"));
     gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_sort_order), _("By center"));
     gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_sort_order), _("Most recently used first"));
     gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_sort_order), _("Most recently used last"));
@@ -2701,6 +2729,7 @@ void create_taskbar(GtkWidget *parent)
                            "'None' means that new tasks are added to the end, and the user can also reorder task "
                            "buttons by mouse dragging. \n"
                            "'By title' means that tasks are sorted by their window titles. \n"
+                           "'By application' means that tasks are sorted by their application names. \n"
                            "'By center' means that tasks are sorted geometrically by their window centers."),
                          NULL);
 

src/tint2conf/properties.h

@@ -9,6 +9,7 @@
 #include "../launcher/icon-theme-common.h"
 
 // panel
+extern GtkWidget *scale_relative_to_dpi, *scale_relative_to_screen_height;
 extern GtkWidget *panel_width, *panel_height, *panel_margin_x, *panel_margin_y, *panel_padding_x, *panel_padding_y,
     *panel_spacing;
 extern GtkWidget *panel_wm_menu, *panel_dock, *panel_autohide, *panel_autohide_show_time, *panel_autohide_hide_time,

src/tint2conf/properties_rw.c

@@ -378,6 +378,13 @@ void config_write_panel(FILE *fp)
             (int)gtk_spin_button_get_value(GTK_SPIN_BUTTON(mouse_pressed_icon_saturation)),
             (int)gtk_spin_button_get_value(GTK_SPIN_BUTTON(mouse_pressed_icon_brightness)));
 
+    fprintf(fp,
+            "scale_relative_to_dpi = %d\n",
+            (int)gtk_spin_button_get_value(GTK_SPIN_BUTTON(scale_relative_to_dpi)));
+    fprintf(fp,
+            "scale_relative_to_screen_height = %d\n",
+            (int)gtk_spin_button_get_value(GTK_SPIN_BUTTON(scale_relative_to_screen_height)));
+
     fprintf(fp, "\n");
 }
 
@@ -450,10 +457,12 @@ void config_write_taskbar(FILE *fp)
     } else if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_sort_order)) == 1) {
         fprintf(fp, "title");
     } else if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_sort_order)) == 2) {
-        fprintf(fp, "center");
+        fprintf(fp, "application");
     } else if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_sort_order)) == 3) {
-        fprintf(fp, "mru");
+        fprintf(fp, "center");
     } else if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_sort_order)) == 4) {
+        fprintf(fp, "mru");
+    } else if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_sort_order)) == 5) {
         fprintf(fp, "lru");
     } else {
         fprintf(fp, "none");
@@ -1108,7 +1117,13 @@ void add_entry(char *key, char *value)
     char *value1 = 0, *value2 = 0, *value3 = 0;
 
     /* Gradients */
-    if (strcmp(key, "gradient") == 0) {
+    if (strcmp(key, "scale_relative_to_dpi") == 0) {
+        extract_values(value, &value1, &value2, &value3);
+        gtk_spin_button_set_value(GTK_SPIN_BUTTON(scale_relative_to_dpi), atoi(value1));
+    } else if (strcmp(key, "scale_relative_to_screen_height") == 0) {
+        extract_values(value, &value1, &value2, &value3);
+        gtk_spin_button_set_value(GTK_SPIN_BUTTON(scale_relative_to_screen_height), atoi(value1));
+    } else if (strcmp(key, "gradient") == 0) {
         finalize_gradient();
         GradientConfigType t;
         if (g_str_equal(value, "horizontal"))
@@ -1546,12 +1561,14 @@ void add_entry(char *key, char *value)
             gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 0);
         else if (strcmp(value, "title") == 0)
             gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 1);
-        else if (strcmp(value, "center") == 0)
+        else if (strcmp(value, "application") == 0)
             gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 2);
-        else if (strcmp(value, "mru") == 0)
+        else if (strcmp(value, "center") == 0)
             gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 3);
-        else if (strcmp(value, "lru") == 0)
+        else if (strcmp(value, "mru") == 0)
             gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 4);
+        else if (strcmp(value, "lru") == 0)
+            gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 5);
         else
             gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 0);
     } else if (strcmp(key, "task_align") == 0) {

src/tooltip/tooltip.c

@@ -153,7 +153,9 @@ void tooltip_update_geometry()
 
     cairo_surface_t *cs = cairo_xlib_surface_create(server.display, g_tooltip.window, server.visual, width, height);
     cairo_t *c = cairo_create(cs);
-    PangoLayout *layout = pango_cairo_create_layout(c);
+    PangoContext *context = pango_cairo_create_context(c);
+    pango_cairo_context_set_resolution(context, 96 * panel->scale);
+    PangoLayout *layout = pango_layout_new(context);
 
     pango_layout_set_font_description(layout, g_tooltip.font_desc);
     PangoRectangle r1, r2;
@@ -161,7 +163,7 @@ void tooltip_update_geometry()
     pango_layout_get_pixel_extents(layout, &r1, &r2);
     int max_width = MIN(r2.width * 5, screen_width * 2 / 3);
     if (g_tooltip.image && cairo_image_surface_get_width(g_tooltip.image) > 0) {
-        max_width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx +
+        max_width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx * panel->scale +
                                 cairo_image_surface_get_width(g_tooltip.image);
     }
     pango_layout_set_width(layout, max_width * PANGO_SCALE);
@@ -169,12 +171,12 @@ void tooltip_update_geometry()
     pango_layout_set_text(layout, g_tooltip.tooltip_text ? g_tooltip.tooltip_text : "1234567890abcdef", -1);
     pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
     pango_layout_get_pixel_extents(layout, &r1, &r2);
-    width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx + r2.width;
+    width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx * panel->scale + r2.width;
-    height = top_bottom_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingy + r2.height;
+    height = top_bottom_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingy * panel->scale + r2.height;
     if (g_tooltip.image && cairo_image_surface_get_width(g_tooltip.image) > 0) {
-        width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx +
+        width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx * panel->scale +
                                         cairo_image_surface_get_width(g_tooltip.image);
-        height += g_tooltip.paddingy + cairo_image_surface_get_height(g_tooltip.image);
+        height += g_tooltip.paddingy * panel->scale + cairo_image_surface_get_height(g_tooltip.image);
     }
 
     if (panel_horizontal && panel_position & BOTTOM)
@@ -187,6 +189,7 @@ void tooltip_update_geometry()
         x = panel->posx - width;
 
     g_object_unref(layout);
+    g_object_unref(context);
     cairo_destroy(c);
     cairo_surface_destroy(cs);
 }
@@ -243,6 +246,7 @@ void tooltip_update()
         tooltip_hide(0);
         return;
     }
+    Panel *panel = g_tooltip.panel;
 
     tooltip_update_geometry();
     if (just_shown) {
@@ -277,7 +281,9 @@ void tooltip_update()
 
     Color fc = g_tooltip.font_color;
     cairo_set_source_rgba(c, fc.rgb[0], fc.rgb[1], fc.rgb[2], fc.alpha);
-    PangoLayout *layout = pango_cairo_create_layout(c);
+    PangoContext *context = pango_cairo_create_context(c);
+    pango_cairo_context_set_resolution(context, 96 * panel->scale);
+    PangoLayout *layout = pango_layout_new(context);
     pango_layout_set_font_description(layout, g_tooltip.font_desc);
     pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
     pango_layout_set_text(layout, g_tooltip.tooltip_text, -1);
@@ -289,15 +295,16 @@ void tooltip_update()
     // I do not know why this is the right way, but with the below cairo_move_to it seems to be centered (horiz. and
     // vert.)
     cairo_move_to(c,
-                  -r1.x / 2 + left_bg_border_width(g_tooltip.bg) + g_tooltip.paddingx,
+                  -r1.x / 2 + left_bg_border_width(g_tooltip.bg) + g_tooltip.paddingx * panel->scale,
-                  -r1.y / 2 + 1 + top_bg_border_width(g_tooltip.bg) + g_tooltip.paddingy);
+                  -r1.y / 2 + 1 + top_bg_border_width(g_tooltip.bg) + g_tooltip.paddingy * panel->scale);
     pango_cairo_show_layout(c, layout);
     g_object_unref(layout);
+    g_object_unref(context);
 
     if (g_tooltip.image) {
         cairo_translate(c,
-                        left_bg_border_width(g_tooltip.bg) + g_tooltip.paddingx,
+                        left_bg_border_width(g_tooltip.bg) + g_tooltip.paddingx * panel->scale,
-                        height - bottom_bg_border_width(g_tooltip.bg) - g_tooltip.paddingy - cairo_image_surface_get_height(g_tooltip.image));
+                        height - bottom_bg_border_width(g_tooltip.bg) - g_tooltip.paddingy * panel->scale - cairo_image_surface_get_height(g_tooltip.image));
         cairo_set_source_surface(c, g_tooltip.image, 0, 0);
         cairo_paint(c);
     }

src/util/area.c

@@ -478,14 +478,14 @@ void draw(Area *a)
         a->_clear(a);
     }
 
-    cairo_surface_t *cs = cairo_xlib_surface_create(server.display, a->pix, server.visual, a->width, a->height);
+    cairo_surface_t *cs = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, a->width, a->height);
     cairo_t *c = cairo_create(cs);
 
     draw_background(a, c);
-
     if (a->_draw_foreground)
         a->_draw_foreground(a, c);
 
+    draw_cairo_surface_to_xpixmap(cs, a->pix);
     cairo_destroy(c);
     cairo_surface_destroy(cs);
 }
@@ -929,10 +929,8 @@ void area_compute_text_geometry(Area *area,
                                 const char *line2,
                                 PangoFontDescription *line1_font_desc,
                                 PangoFontDescription *line2_font_desc,
-                                int *line1_height_ink,
                                 int *line1_height,
                                 int *line1_width,
-                                int *line2_height_ink,
                                 int *line2_height,
                                 int *line2_width)
 {
@@ -941,7 +939,6 @@ void area_compute_text_geometry(Area *area,
 
     if (line1 && line1[0])
         get_text_size2(line1_font_desc,
-                       line1_height_ink,
                        line1_height,
                        line1_width,
                        available_h,
@@ -950,13 +947,14 @@ void area_compute_text_geometry(Area *area,
                        strlen(line1),
                        PANGO_WRAP_WORD_CHAR,
                        PANGO_ELLIPSIZE_NONE,
-                       FALSE);
+                       PANGO_ALIGN_CENTER,
+                       FALSE,
+                       ((Panel*)area->panel)->scale);
     else
-        *line1_width = *line1_height_ink = *line1_height = 0;
+        *line1_width = *line1_height = 0;
 
     if (line2 && line2[0])
         get_text_size2(line2_font_desc,
-                       line2_height_ink,
                        line2_height,
                        line2_width,
                        available_h,
@@ -965,9 +963,11 @@ void area_compute_text_geometry(Area *area,
                        strlen(line2),
                        PANGO_WRAP_WORD_CHAR,
                        PANGO_ELLIPSIZE_NONE,
-                       FALSE);
+                       PANGO_ALIGN_CENTER,
+                       FALSE,
+                       ((Panel*)area->panel)->scale);
     else
-        *line2_width = *line2_height_ink = *line2_height = 0;
+        *line2_width = *line2_height = 0;
 }
 
 int text_area_compute_desired_size(Area *area,
@@ -976,16 +976,14 @@ int text_area_compute_desired_size(Area *area,
                                    PangoFontDescription *line1_font_desc,
                                    PangoFontDescription *line2_font_desc)
 {
-    int line1_height_ink, line1_height, line1_width, line2_height_ink, line2_height, line2_width;
+    int line1_height, line1_width, line2_height, line2_width;
     area_compute_text_geometry(area,
                                line1,
                                line2,
                                line1_font_desc,
                                line2_font_desc,
-                               &line1_height_ink,
                                &line1_height,
                                &line1_width,
-                               &line2_height_ink,
                                &line2_height,
                                &line2_width);
 
@@ -1010,17 +1008,15 @@ gboolean resize_text_area(Area *area,
 
     schedule_redraw(area);
 
-    int line1_height_ink, line1_height, line1_width;
+    int line1_height, line1_width;
-    int line2_height_ink, line2_height, line2_width;
+    int line2_height, line2_width;
     area_compute_text_geometry(area,
                                line1,
                                line2,
                                line1_font_desc,
                                line2_font_desc,
-                               &line1_height_ink,
                                &line1_height,
                                &line1_width,
-                               &line2_height_ink,
                                &line2_height,
                                &line2_width);
 
@@ -1067,12 +1063,16 @@ void draw_text_area(Area *area,
                     PangoFontDescription *line2_font_desc,
                     int line1_posy,
                     int line2_posy,
-                    Color *color)
+                    Color *color,
+                    double scale)
 {
     int inner_w, inner_h;
     area_compute_inner_size(area, &inner_w, &inner_h);
 
-    PangoLayout *layout = pango_cairo_create_layout(c);
+    PangoContext *context = pango_cairo_create_context(c);
+    pango_cairo_context_set_resolution(context, 96 * scale);
+    PangoLayout *layout = pango_layout_new(context);
+
     pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
     pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
     pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
@@ -1084,7 +1084,7 @@ void draw_text_area(Area *area,
         pango_layout_set_font_description(layout, line1_font_desc);
         pango_layout_set_text(layout, line1, strlen(line1));
         pango_cairo_update_layout(c, layout);
-        draw_text(layout, c, (area->width - inner_w) / 2, line1_posy, color, ((Panel *)area->panel)->font_shadow);
+        draw_text(layout, c, (area->width - inner_w) / 2, line1_posy, color, ((Panel *)area->panel)->font_shadow ? layout : NULL);
     }
 
     if (line2 && line2[0]) {
@@ -1092,10 +1092,11 @@ void draw_text_area(Area *area,
         pango_layout_set_indent(layout, 0);
         pango_layout_set_text(layout, line2, strlen(line2));
         pango_cairo_update_layout(c, layout);
-        draw_text(layout, c, (area->width - inner_w) / 2, line2_posy, color, ((Panel *)area->panel)->font_shadow);
+        draw_text(layout, c, (area->width - inner_w) / 2, line2_posy, color, ((Panel *)area->panel)->font_shadow ? layout : NULL);
     }
 
     g_object_unref(layout);
+    g_object_unref(context);
 }
 
 Area *compute_element_area(Area *area, Element element)

src/util/area.h

@@ -273,10 +273,8 @@ void area_compute_text_geometry(Area *area,
                                 const char *line2,
                                 PangoFontDescription *line1_font_desc,
                                 PangoFontDescription *line2_font_desc,
-                                int *line1_height_ink,
                                 int *line1_height,
                                 int *line1_width,
-                                int *line2_height_ink,
                                 int *line2_height,
                                 int *line2_width);
 int text_area_compute_desired_size(Area *area,
@@ -299,7 +297,8 @@ void draw_text_area(Area *area,
                     PangoFontDescription *line2_font_desc,
                     int line1_posy,
                     int line2_posy,
-                    Color *color);
+                    Color *color,
+                    double scale);
 
 int left_border_width(Area *a);
 int right_border_width(Area *a);

src/util/bt.c

@@ -0,0 +1,268 @@
+/**************************************************************************
+*
+* Tint2 : backtrace
+*
+* Copyright (C) 2007 Pål Staurland (staura@gmail.com)
+* Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr) from Omega distribution
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License version 2
+* as published by the Free Software Foundation.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**************************************************************************/
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "bt.h"
+#include "bool.h"
+
+#if defined(HAS_BACKTRACE) || defined(HAS_LIBUNWIND) || defined(HAS_EXECINFO)
+
+static void bt_add_frame(struct backtrace *bt, const char *fname)
+{
+    if (bt->frame_count >= BT_MAX_FRAMES)
+        return;
+    struct backtrace_frame *frame = &bt->frames[bt->frame_count];
+    if (fname && *fname) {
+        strncpy(frame->name, fname, BT_FRAME_SIZE);
+    } else {
+        strncpy(frame->name, "??", BT_FRAME_SIZE);
+    }
+    bt->frame_count++;
+}
+
+#endif
+
+#ifdef HAS_BACKTRACE
+
+#include <backtrace.h>
+
+static const char *get_exe()
+{
+    static char buf[256] = {0};
+    ssize_t ret = readlink("/proc/self/exe", buf, sizeof(buf)-1);
+    if (ret > 0)
+        return buf;
+    ret = readlink("/proc/curproc/file", buf, sizeof(buf)-1);
+    if (ret > 0)
+        return buf;
+    return buf;
+}
+
+static void bt_error_callback(void *data, const char *msg, int errnum)
+{
+}
+
+static int bt_full_callback(void *data, uintptr_t pc,
+                     const char *filename, int lineno,
+                     const char *function)
+{
+    struct backtrace *bt = (struct backtrace *)data;
+    bt_add_frame(bt, function);
+    return 0;
+}
+
+void get_backtrace(struct backtrace *bt, int skip)
+{
+    static struct backtrace_state *state = NULL;
+
+    if (!state) {
+        const char *exe = get_exe();
+        if (exe)
+            state = backtrace_create_state(exe, 1, bt_error_callback, NULL);
+    }
+    bzero(bt, sizeof(*bt));
+    if (state) {
+        backtrace_full(state, skip + 1, bt_full_callback, bt_error_callback, bt);
+    }
+}
+
+#elif HAS_LIBUNWIND
+
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+
+struct bt_mapping {
+    unw_word_t ip;
+    char fname[BT_FRAME_SIZE];
+};
+
+#define BT_BUCKET_SIZE 3
+struct bt_bucket {
+    struct bt_mapping mappings[BT_BUCKET_SIZE];
+};
+
+struct bt_cache {
+    struct bt_bucket *buckets;
+    size_t count;
+    size_t size;
+};
+
+static unsigned oat_hash(void *key, int len)
+{
+    unsigned char *p = key;
+    unsigned h = 0;
+    int i;
+
+    for (i = 0; i < len; i++)
+    {
+        h += p[i];
+        h += (h << 10);
+        h ^= (h >> 6);
+    }
+
+    h += (h << 3);
+    h ^= (h >> 11);
+    h += (h << 15);
+
+    return h;
+}
+
+static struct bt_bucket *cached_proc_name_bucket(struct bt_cache *cache, unw_word_t ip)
+{
+    if (!cache->size)
+        return NULL;
+    unsigned h = oat_hash(&ip, sizeof(ip));
+    return &cache->buckets[h % cache->size];
+}
+
+static void bt_cache_init(struct bt_cache *cache)
+{
+    if (!cache->size) {
+        cache->size = 119;
+        cache->buckets = calloc(cache->size, sizeof(*cache->buckets));
+        if (!cache->buckets)
+            cache->size = 0;
+        cache->count = 0;
+    }
+}
+
+static void cached_proc_name_store(struct bt_cache *cache, unw_word_t ip, const char *fname);
+
+static void bt_cache_rebalance(struct bt_cache *cache)
+{
+    struct bt_cache bigger = {};
+    bigger.size = cache->size * 2 + 1337;
+    bigger.buckets = calloc(bigger.size, sizeof(*bigger.buckets));
+    bigger.count = 0;
+    for (size_t b = 0; b < cache->size; b++) {
+        for (size_t i = 0; i < BT_BUCKET_SIZE; i++) {
+            struct bt_mapping *map = &cache->buckets[b].mappings[i];
+            if (map->ip) {
+                cached_proc_name_store(&bigger, map->ip, map->fname);
+            }
+        }
+    }
+    free(cache->buckets);
+    *cache = bigger;
+}
+
+static void cached_proc_name_store(struct bt_cache *cache, unw_word_t ip, const char *fname)
+{
+    bt_cache_init(cache);
+    if (!cache->size)
+        return;
+    struct bt_bucket *bucket = cached_proc_name_bucket(cache, ip);
+    bool stored = false;
+    for (size_t i = 0; i < BT_BUCKET_SIZE; i++) {
+        if (bucket->mappings[i].ip == ip)
+            return;
+        if (bucket->mappings[i].ip != 0)
+            continue;
+        bucket->mappings[i].ip = ip;
+        strncpy(bucket->mappings[i].fname, fname, sizeof(bucket->mappings[i].fname));
+        cache->count++;
+        stored = true;
+        break;
+    }
+    if (cache->count > cache->size / 4 || !stored) {
+        bt_cache_rebalance(cache);
+        fprintf(stderr, "tint2: proc_name cache: ratio %f, count %lu, size %lu, (%lu bytes)\n",
+                cache->count / (double)cache->size,
+                cache->count, (size_t)cache->size, cache->size * sizeof(*cache->buckets));
+    }
+}
+
+const char *cached_proc_name_get(struct bt_cache *cache, unw_word_t ip)
+{
+    struct bt_bucket *bucket = cached_proc_name_bucket(cache, ip);
+    if (!bucket)
+        return NULL;
+    for (size_t i = 0; i < BT_BUCKET_SIZE; i++) {
+        if (bucket->mappings[i].ip != ip)
+            continue;
+        return bucket->mappings[i].fname;
+    }
+    return NULL;
+}
+
+void get_backtrace(struct backtrace *bt, int skip)
+{
+    static struct bt_cache bt_cache = {};
+    bzero(bt, sizeof(*bt));
+
+    unw_cursor_t cursor;
+    unw_context_t context;
+    unw_getcontext(&context);
+    unw_init_local(&cursor, &context);
+
+    while (unw_step(&cursor) > 0) {
+        if (skip > 0) {
+            skip--;
+            continue;
+        }
+        unw_word_t offset;
+        char fname[BT_FRAME_SIZE] = {0};
+        unw_word_t ip;
+        unw_get_reg(&cursor, UNW_REG_IP, &ip);
+        const char *fname_cached = cached_proc_name_get(&bt_cache, ip);
+        if (fname_cached) {
+            bt_add_frame(bt, fname_cached);
+        } else {
+            unw_get_proc_name(&cursor, fname, sizeof(fname), &offset);
+            cached_proc_name_store(&bt_cache, ip, fname);
+            bt_add_frame(bt, fname);
+        }
+    }
+}
+
+#elif HAS_EXECINFO
+
+#include <execinfo.h>
+
+void get_backtrace(struct backtrace *bt, int skip)
+{
+    bzero(bt, sizeof(*bt));
+
+    void *array[BT_MAX_FRAMES];
+    int size = backtrace(array, BT_MAX_FRAMES);
+    char **strings = backtrace_symbols(array, size);
+
+    for (int i = 0; i < size; i++) {
+        bt_add_frame(bt, strings[i]);
+    }
+
+    free(strings);
+}
+
+
+#else
+
+void get_backtrace(struct backtrace *bt, int skip)
+{
+    bzero(bt, sizeof(*bt));
+}
+
+#endif

src/util/bt.h

@@ -0,0 +1,20 @@
+#ifndef BT_H
+#define BT_H
+
+#include <sys/types.h>
+
+#define BT_FRAME_SIZE 64
+#define BT_MAX_FRAMES 64
+
+struct backtrace_frame {
+    char name[BT_FRAME_SIZE];
+};
+
+struct backtrace {
+    struct backtrace_frame frames[BT_MAX_FRAMES];
+    size_t frame_count;
+};
+
+void get_backtrace(struct backtrace *bt, int skip);
+
+#endif // BT_H

src/util/common.c

@@ -48,18 +48,10 @@
 #include <librsvg/rsvg.h>
 #endif
 
-#ifdef ENABLE_LIBUNWIND
-#define UNW_LOCAL_ONLY
-#include <libunwind.h>
-#else
-#ifdef ENABLE_EXECINFO
-#include <execinfo.h>
-#endif
-#endif
-
 #include "../panel.h"
 #include "timer.h"
 #include "signals.h"
+#include "bt.h"
 
 void write_string(int fd, const char *s)
 {
@@ -83,39 +75,13 @@ void log_string(int fd, const char *s)
 
 void dump_backtrace(int log_fd)
 {
-#ifndef DISABLE_BACKTRACE
+    struct backtrace bt;
+    get_backtrace(&bt, 1);
     log_string(log_fd, "\n" YELLOW "Backtrace:" RESET "\n");
-
+    for (size_t i = 0; i < bt.frame_count; i++) {
-#ifdef ENABLE_LIBUNWIND
+        log_string(log_fd, bt.frames[i].name);
-    unw_cursor_t cursor;
-    unw_context_t context;
-    unw_getcontext(&context);
-    unw_init_local(&cursor, &context);
-
-    while (unw_step(&cursor) > 0) {
-        unw_word_t offset;
-        char fname[128];
-        fname[0] = '\0';
-        (void)unw_get_proc_name(&cursor, fname, sizeof(fname), &offset);
-        log_string(log_fd, fname);
         log_string(log_fd, "\n");
     }
-#else
-#ifdef ENABLE_EXECINFO
-#define MAX_TRACE_SIZE 128
-    void *array[MAX_TRACE_SIZE];
-    size_t size = backtrace(array, MAX_TRACE_SIZE);
-    char **strings = backtrace_symbols(array, size);
-
-    for (size_t i = 0; i < size; i++) {
-        log_string(log_fd, strings[i]);
-        log_string(log_fd, "\n");
-    }
-
-    free(strings);
-#endif // ENABLE_EXECINFO
-#endif // ENABLE_LIBUNWIND
-#endif // DISABLE_BACKTRACE
 }
 
 // sleep() returns early when signals arrive. This function does not.
@@ -396,8 +362,12 @@ pid_t tint_exec(const char *command,
         // Allow children to exist after parent destruction
         setsid();
         // Run the command
-        if (dir)
+        if (dir) {
-            chdir(dir);
+            int ret = chdir(dir);
+            if (ret != 0) {
+                fprintf(stderr, "tint2: failed to chdir to %s\n", dir);
+            }
+        }
         close_all_fds();
         reset_signals();
         if (terminal) {
@@ -758,9 +728,37 @@ void render_image(Drawable d, int x, int y)
     XFreePixmap(server.display, pixmap);
 }
 
-void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, int font_shadow)
+gboolean is_color_attribute(PangoAttribute *attr, gpointer user_data)
+{
+    return attr->klass->type == PANGO_ATTR_FOREGROUND ||
+            attr->klass->type == PANGO_ATTR_BACKGROUND ||
+            attr->klass->type == PANGO_ATTR_UNDERLINE_COLOR ||
+            attr->klass->type == PANGO_ATTR_STRIKETHROUGH_COLOR ||
+            attr->klass->type == PANGO_ATTR_FOREGROUND_ALPHA ||
+            attr->klass->type == PANGO_ATTR_BACKGROUND_ALPHA;
+}
+
+gboolean layout_set_markup_strip_colors(PangoLayout *layout, const char *markup)
+{
+    PangoAttrList *attrs = NULL;
+    char *text = NULL;
+    GError *error = NULL;
+    if (!pango_parse_markup(markup, -1, 0, &attrs, &text, NULL, &error)) {
+        g_error_free(error);
+        return FALSE;
+    }
+
+    pango_layout_set_text(layout, text, -1);
+    g_free(text);
+
+    pango_attr_list_filter(attrs, is_color_attribute, NULL);
+    pango_layout_set_attributes(layout, attrs);
+    pango_attr_list_unref(attrs);
+    return TRUE;
+}
+
+void draw_shadow(cairo_t *c, int posx, int posy, PangoLayout *shadow_layout)
 {
-    if (font_shadow) {
     const int shadow_size = 3;
     const double shadow_edge_alpha = 0.0;
     int i, j;
@@ -773,12 +771,17 @@ void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color
                                   1.0 -
                                       (1.0 - shadow_edge_alpha) *
                                           sqrt((i * i + j * j) / (double)(shadow_size * shadow_size)));
-                pango_cairo_update_layout(c, layout);
+            pango_cairo_update_layout(c, shadow_layout);
             cairo_move_to(c, posx + i, posy + j);
-                pango_cairo_show_layout(c, layout);
+            pango_cairo_show_layout(c, shadow_layout);
-            }
         }
     }
+}
+
+void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, PangoLayout *shadow_layout)
+{
+    if (shadow_layout)
+        draw_shadow(c, posx, posy, shadow_layout);
     cairo_set_source_rgba(c, color->rgb[0], color->rgb[1], color->rgb[2], color->alpha);
     pango_cairo_update_layout(c, layout);
     cairo_move_to(c, posx, posy);
@@ -788,15 +791,15 @@ void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color
 Imlib_Image load_image(const char *path, int cached)
 {
     Imlib_Image image;
+    static unsigned long counter = 0;
+    if (debug_icons)
+        fprintf(stderr, "tint2: loading icon %s\n", path);
 #ifdef HAVE_RSVG
-    if (cached) {
+    image = imlib_load_image(path);
-        image = imlib_load_image_immediately(path);
-    } else {
-        image = imlib_load_image_immediately_without_cache(path);
-    }
     if (!image && g_str_has_suffix(path, ".svg")) {
         char tmp_filename[128];
-        snprintf(tmp_filename, sizeof(tmp_filename), "/tmp/tint2-%d.png", (int)getpid());
+        snprintf(tmp_filename, sizeof(tmp_filename), "/tmp/tint2-%d-%lu.png", (int)getpid(), counter);
+        counter++;
         int fd = open(tmp_filename, O_CREAT | O_EXCL, 0600);
         if (fd >= 0) {
             // We fork here because librsvg allocates memory like crazy
@@ -818,19 +821,17 @@ Imlib_Image load_image(const char *path, int cached)
                 // Parent
                 close(fd);
                 waitpid(pid, 0, 0);
-                image = imlib_load_image_immediately_without_cache(tmp_filename);
+                image = imlib_load_image_immediately(tmp_filename);
                 unlink(tmp_filename);
             }
         }
     } else
 #endif
     {
-        if (cached) {
+        image = imlib_load_image(path);
-            image = imlib_load_image_immediately(path);
-        } else {
-            image = imlib_load_image_immediately_without_cache(path);
-        }
     }
+    imlib_context_set_image(image);
+    imlib_image_set_changes_on_disk();
     return image;
 }
 
@@ -924,8 +925,7 @@ void clear_pixmap(Pixmap p, int x, int y, int w, int h)
     XRenderFreePicture(server.display, pict);
 }
 
-void get_text_size2(const PangoFontDescription *font,
+void get_text_size(const PangoFontDescription *font,
-                    int *height_ink,
                    int *height,
                    int *width,
                    int available_height,
@@ -934,20 +934,26 @@ void get_text_size2(const PangoFontDescription *font,
                    int text_len,
                    PangoWrapMode wrap,
                    PangoEllipsizeMode ellipsis,
-                    gboolean markup)
+                   PangoAlignment alignment,
+                   gboolean markup,
+                   double scale)
 {
     PangoRectangle rect_ink, rect;
 
     available_width = MAX(0, available_width);
     available_height = MAX(0, available_height);
 
+    Pixmap pmap = XCreatePixmap(server.display, server.root_win, available_height, available_width, server.depth);
     cairo_surface_t *cs =
-        cairo_image_surface_create(CAIRO_FORMAT_ARGB32, available_height, available_width);
+        cairo_xlib_surface_create(server.display, pmap, server.visual, available_height, available_width);
     cairo_t *c = cairo_create(cs);
 
-    PangoLayout *layout = pango_cairo_create_layout(c);
+    PangoContext *context = pango_cairo_create_context(c);
+    pango_cairo_context_set_resolution(context, 96 * scale);
+    PangoLayout *layout = pango_layout_new(context);
     pango_layout_set_width(layout, available_width * PANGO_SCALE);
     pango_layout_set_height(layout, available_height * PANGO_SCALE);
+    pango_layout_set_alignment(layout, alignment);
     pango_layout_set_wrap(layout, wrap);
     pango_layout_set_ellipsize(layout, ellipsis);
     pango_layout_set_font_description(layout, font);
@@ -958,14 +964,63 @@ void get_text_size2(const PangoFontDescription *font,
         pango_layout_set_markup(layout, text, text_len);
 
     pango_layout_get_pixel_extents(layout, &rect_ink, &rect);
-    *height_ink = rect_ink.height;
     *height = rect.height;
     *width = rect.width;
+
     // fprintf(stderr, "tint2: dimension : %d - %d\n", rect_ink.height, rect.height);
 
     g_object_unref(layout);
+    g_object_unref(context);
     cairo_destroy(c);
     cairo_surface_destroy(cs);
+    XFreePixmap(server.display, pmap);
+}
+
+void get_text_size2(const PangoFontDescription *font,
+                    int *height,
+                    int *width,
+                    int available_height,
+                    int available_width,
+                    const char *text,
+                    int text_len,
+                    PangoWrapMode wrap,
+                    PangoEllipsizeMode ellipsis,
+                    PangoAlignment alignment,
+                    gboolean markup,
+                    double scale)
+{
+    get_text_size(font, height, width, available_height, available_width, text, text_len, wrap, ellipsis, alignment, markup, scale);
+
+    // We do multiple passes, because pango sucks
+    int actual_height, actual_width, overflow = 0;
+    while (true) {
+        get_text_size(font, &actual_height, &actual_width, *height, *width, text, text_len, wrap, ellipsis, alignment, markup, scale);
+        if (actual_height <= *height)
+            break;
+        if (*width >= available_width)
+            break;
+        overflow = 1;
+        fprintf(stderr, "tint2: text overflows, recomputing: available %dx%d, computed %dx%d, actual %dx%d: %s\n",
+                available_width,
+                available_height,
+                *width,
+                *height,
+                actual_width,
+                actual_height,
+                text);
+        (*width)++;
+    }
+    if (overflow) {
+        *height = actual_height;
+        fprintf(stderr, "tint2: text final size computed as: available %dx%d, computed %dx%d, actual %dx%d: %s\n",
+                available_width,
+                available_height,
+                *width,
+                *height,
+                actual_width,
+                actual_height,
+                text);
+    }
 }
 
 #if !GLIB_CHECK_VERSION(2, 34, 0)
@@ -1174,3 +1229,19 @@ void dump_image_data(const char *file_name, const char *name)
 
     imlib_free_image();
 }
+
+void draw_cairo_surface_to_xpixmap(cairo_surface_t *cs, Pixmap pix)
+{
+    int w = cairo_image_surface_get_width(cs);
+    int h = cairo_image_surface_get_height(cs);
+    cairo_surface_t *cs_xlib = cairo_xlib_surface_create(server.display, pix, server.visual, w, h);
+    cairo_xlib_surface_set_size(cs_xlib, w, h);
+    cairo_t *c_xlib = cairo_create(cs_xlib);
+
+    cairo_set_source_surface(c_xlib, cs, 0, 0);
+    cairo_paint(c_xlib);
+    cairo_surface_flush(cs_xlib);
+
+    cairo_destroy(c_xlib);
+    cairo_surface_destroy(cs_xlib);
+}

src/util/common.h

@@ -7,6 +7,7 @@
 #define COMMON_H
 
 #define WM_CLASS_TINT "panel"
+#define TINT2_PANGO_SLACK 0
 
 #include <glib.h>
 #include <Imlib2.h>
@@ -113,7 +114,6 @@ void create_heuristic_mask(DATA32 *data, int w, int h);
 void render_image(Drawable d, int x, int y);
 
 void get_text_size2(const PangoFontDescription *font,
-                    int *height_ink,
                     int *height,
                     int *width,
                     int available_height,
@@ -122,9 +122,12 @@ void get_text_size2(const PangoFontDescription *font,
                     int text_len,
                     PangoWrapMode wrap,
                     PangoEllipsizeMode ellipsis,
-                    gboolean markup);
+                    PangoAlignment alignment,
+                    gboolean markup,
+                    double scale);
 
-void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, int font_shadow);
+gboolean layout_set_markup_strip_colors(PangoLayout *layout, const char *markup);
+void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, PangoLayout *shadow_layout);
 
 // Draws a rounded rectangle
 void draw_rect(cairo_t *c, double x, double y, double w, double h, double r);
@@ -151,6 +154,8 @@ void get_image_mean_color(const Imlib_Image image, Color *mean_color);
 
 void dump_image_data(const char *file_name, const char *name);
 
+void draw_cairo_surface_to_xpixmap(cairo_surface_t *cs, Pixmap pix);
+
 #define free_and_null(p) \
     {                    \
         free(p);         \

src/util/mem.c

@@ -0,0 +1,331 @@
+#define _GNU_SOURCE
+#include <dlfcn.h>
+#include <endian.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <limits.h>
+#include <signal.h>
+
+#include "bt.h"
+#include "bool.h"
+
+#define UNUSED(x) ((void)x)
+
+void ERR(const char *s)
+{
+    if (!s) {
+        ERR("(null)");
+        return;
+    }
+    ssize_t ret = write(STDERR_FILENO, s, strlen(s));
+    UNUSED(ret);
+    ret = fsync(STDERR_FILENO);
+    UNUSED(ret);
+}
+
+void utoa(unsigned long n, char *s)
+{
+    if (n == 0) {
+        *s++ = '0';
+        *s = 0;
+        return;
+    }
+    char buffer[128] = {0};
+    char *digit;
+    for (digit = buffer; n; digit++, n/=10) {
+        *digit = '0' + (n % 10);
+    }
+    digit--;
+    while (digit >= buffer) {
+        *s++ = *digit--;
+    }
+    *s = 0;
+}
+
+unsigned long uabs(long n)
+{
+    if (n == LONG_MIN)
+        return ((unsigned long)LONG_MAX) + 1;
+    return (unsigned long)labs(n);
+}
+
+void itoa(long n, char *s)
+{
+    if (n < 0) {
+        *s++ = '-';
+    }
+    utoa(uabs(n), s);
+}
+
+__attribute__((noreturn))
+static void crash(char *file, int line, char *msg)
+{
+    ERR(file);
+    ERR(":");
+    char buf[256];
+    itoa(line, buf);
+    ERR(buf);
+    ERR(" ");
+    ERR(msg);
+    _exit(1);
+}
+
+#define ASSERT_OK(call) if (0 != (call)) crash(__FILE__, __LINE__, #call)
+#define ASSERT_FD(fd) if ((fd) == -1) crash(__FILE__, __LINE__, "bad file descriptor")
+#define ASSERT_PID(pid) if ((pid) == -1) crash(__FILE__, __LINE__, "bad PID")
+#define ASSERT(b) if (!(b)) crash(__FILE__, __LINE__, "assert failed")
+
+void *return_null(void *x, void *y)
+{
+    return 0;
+}
+
+void load_func_or_crash(void **result, const char *name)
+{
+    static int inside_loader = 0;
+    if (inside_loader) {
+        *result = (void*)return_null;
+        return;
+    } else if (*result == (void*)return_null) {
+        *result = 0;
+    }
+    if (*result)
+        return;
+    dlerror();
+    inside_loader++;
+    *result = dlsym(RTLD_NEXT, name);
+    inside_loader--;
+    char *err = dlerror();
+    if (err) {
+        ERR("Failed to load ");
+        ERR(name);
+        ERR(" error: ");
+        ERR(err);
+        ERR("\n");
+        exit(1);
+    }
+}
+
+static int fd = -1;
+static u_int64_t tstart = 0;
+static bool stop_alloc_log = false;
+
+static void write_char(char c)
+{
+    static char buffer[4096] = {0};
+    static size_t count = 0;
+    if (c) {
+        buffer[count++] = c;
+    }
+    if (!count)
+        return;
+    if (c == '\n' || c == 0 || count >= sizeof(buffer)) {
+        ssize_t ret = write(fd, buffer, count);
+        ASSERT(ret > 0);
+        count = 0;
+    }
+}
+
+static void write_string(const char *s)
+{
+    for (; *s; s++)
+        write_char(*s);
+}
+
+static void write_word(const char *s)
+{
+    write_string(s);
+    write_string(" ");
+}
+
+static char hex(u_int8_t value)
+{
+    if (value < 10)
+        return '0' + (char)value;
+    return 'a' + (char)(value - 10);
+}
+
+static void write_hex(u_int64_t v)
+{
+    write_string("0x");
+    if (!v) {
+        write_string("0 ");
+        return;
+    }
+    v = htobe64(v);
+    int leading_zero = 1;
+    while (v) {
+        u_int8_t byte = v & 0xff;
+        if (byte)
+            leading_zero = 0;
+        if (!leading_zero) {
+            write_char(hex(byte >> 4));
+            write_char(hex(byte & 0xf));
+        }
+        v = v >> 8;
+    }
+    write_string(" ");
+}
+
+static void write_backtrace(int skip)
+{
+    struct backtrace bt;
+    get_backtrace(&bt, skip + 1);
+    for (size_t i = 0; i < bt.frame_count; i++) {
+        write_word(bt.frames[i].name);
+    }
+}
+
+static void log_alloc_finish(void);
+
+static u_int64_t current_time_ms()
+{
+    struct timespec t = {0, 0};
+    clock_gettime(CLOCK_MONOTONIC, &t);
+    u_int64_t result = t.tv_sec * 1000 + t.tv_nsec / 1000 / 1000;
+    return result;
+}
+
+static void log_alloc_init(u_int64_t t)
+{
+    if (stop_alloc_log)
+        return;
+    if (fd == -1) {
+        int pfd[2] = {-1, -1};
+        ASSERT_OK(pipe(pfd));
+        pid_t child = fork();
+        ASSERT_PID(child);
+        if (child == 0) {
+            // child
+            close(pfd[1]);
+            ASSERT_FD(dup2(pfd[0], STDIN_FILENO));
+            ASSERT_OK(close(pfd[0]));
+            int out = open("mem.log.gz", O_APPEND | O_CLOEXEC | O_CREAT | O_WRONLY | O_TRUNC, 0600);
+            ASSERT_FD(out);
+            ASSERT_FD(dup2(out, STDOUT_FILENO));
+            sigset_t mask;
+            sigfillset(&mask);
+            sigprocmask(SIG_SETMASK, &mask, NULL);
+            ASSERT_OK(execlp("gzip", "gzip", "-c", NULL));
+            _exit(1);
+        } else {
+            // parent
+            close(pfd[0]);
+            fd = pfd[1];
+        }
+        atexit(log_alloc_finish);
+        tstart = t;
+        write_string("# function time_ms result ptr size count backtrace\n");
+    }
+}
+
+static void log_alloc_locked(const char *func_name, void *result, void *ptr, size_t size, size_t count)
+{
+    if (stop_alloc_log)
+        return;
+    u_int64_t t = current_time_ms();
+    if (fd == -1)
+        log_alloc_init(t);
+    if (fd == -1)
+        return;
+    if (func_name) {
+        write_word(func_name);
+        write_hex((u_int64_t)(t - tstart));
+        write_hex((u_int64_t)result);
+        write_hex((u_int64_t)ptr);
+        write_hex((u_int64_t)size);
+        write_hex((u_int64_t)count);
+        write_backtrace(2);
+        write_string("\n");
+    } else {
+        write_string("# done\n");
+        close(fd);
+        fd = -1;
+        stop_alloc_log = true;
+    }
+}
+
+static int pid = -1;
+static void log_alloc(const char *func_name, void *result, void *ptr, size_t size, size_t count)
+{
+    static pthread_mutex_t mutex_global = PTHREAD_MUTEX_INITIALIZER;
+    static pthread_mutex_t mutex_recursive;
+    static pthread_mutex_t mutex_nonrecursive = PTHREAD_MUTEX_INITIALIZER;
+    static bool mutexes_initialized = false;
+
+    pthread_mutex_lock(&mutex_global);
+    {
+        if (!mutexes_initialized) {
+            pthread_mutexattr_t attr;
+            pthread_mutexattr_init(&attr);
+            pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+            pthread_mutex_init(&mutex_recursive, &attr);
+            mutexes_initialized = true;
+            pid = getpid();
+        }
+    }
+    pthread_mutex_unlock(&mutex_global);
+
+    // Do not log from forked processes.
+    if (pid != getpid())
+        return;
+
+    pthread_mutex_lock(&mutex_recursive);
+    int ret = pthread_mutex_trylock(&mutex_nonrecursive);
+    if (ret == 0) {
+        log_alloc_locked(func_name, result, ptr, size, count);
+        pthread_mutex_unlock(&mutex_nonrecursive);
+    }
+    pthread_mutex_unlock(&mutex_recursive);
+}
+
+static void log_alloc_finish()
+{
+    log_alloc(0, 0, 0, 0, 0);
+}
+
+void *malloc(size_t size)
+{
+    static void *(*original)(size_t size) = 0;
+    load_func_or_crash((void *)&original, __FUNCTION__);
+    void *result = original(size);
+    log_alloc(__FUNCTION__, result, 0, size, 0);
+    return result;
+}
+
+void *realloc(void *ptr, size_t size)
+{
+    static void *(*original)(void *p, size_t size) = 0;
+    load_func_or_crash((void *)&original, __FUNCTION__);
+    void *result = original(ptr, size);
+    log_alloc(__FUNCTION__, result, ptr, size, 0);
+    return result;
+}
+
+void *calloc(size_t nmemb, size_t size)
+{
+    static void *(*original)(size_t nmemb, size_t size) = 0;
+    load_func_or_crash((void *)&original, __FUNCTION__);
+    void *result = original(nmemb, size);
+    log_alloc(__FUNCTION__, result, 0, size, nmemb);
+    return result;
+}
+
+void free(void *ptr)
+{
+    static void *(*original)(void *p) = 0;
+    load_func_or_crash((void *)&original, __FUNCTION__);
+    if (!original) {
+        return;
+    }
+    original(ptr);
+    log_alloc(__FUNCTION__, 0, ptr, 0, 0);
+}

src/util/server.c

@@ -19,11 +19,11 @@
 **************************************************************************/
 
 #include <X11/extensions/Xdamage.h>
-#include <X11/extensions/Xrender.h>
 #include <X11/extensions/Xrandr.h>
+#include <X11/extensions/Xrender.h>
 
-#include <stdio.h>
 #include <fcntl.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
@@ -36,8 +36,9 @@
 
 Server server;
 
-void server_catch_error(Display *d, XErrorEvent *ev)
+int server_catch_error(Display *d, XErrorEvent *ev)
 {
+    return 0;
 }
 
 void server_init_atoms()
@@ -311,6 +312,21 @@ void sort_monitors()
     qsort(server.monitors, server.num_monitors, sizeof(Monitor), compare_monitor_pos);
 }
 
+int compute_dpi(XRRCrtcInfo *crtc, XRROutputInfo *output)
+{
+    double width = output->mm_width;
+    double height = output->mm_height;
+    double x_res = crtc->width;
+    double y_res = crtc->height;
+
+    if (width > 0 && height > 0) {
+        int dpi_x = x_res / width * 25.4;
+        int dpi_y = y_res / height * 25.4;
+        return MAX(dpi_x, dpi_y);
+    }
+    return 0;
+}
+
 void get_monitors()
 {
     if (XineramaIsActive(server.display)) {
@@ -339,12 +355,22 @@ void get_monitors()
                 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 *));
+                server.monitors[i_monitor].dpi = 96;
                 for (int j = 0; j < crtc_info->noutput; ++j) {
                     XRROutputInfo *output_info = XRRGetOutputInfo(server.display, res, crtc_info->outputs[j]);
-                    fprintf(stderr, "tint2: xRandr: Linking output %s with crtc %d\n", output_info->name, i);
                     server.monitors[i_monitor].names[j] = g_strdup(output_info->name);
-                    XRRFreeOutputInfo(output_info);
                     server.monitors[i_monitor].primary = crtc_info->outputs[j] == primary_output;
+                    int dpi = compute_dpi(crtc_info, output_info);
+                    if (dpi)
+                        server.monitors[i_monitor].dpi = dpi;
+                    fprintf(stderr,
+                            BLUE "tint2: xRandr: Linking output %s with crtc %d, resolution %dx%d, DPI %d" RESET "\n",
+                            output_info->name,
+                            i,
+                            server.monitors[i_monitor].width,
+                            server.monitors[i_monitor].height,
+                            server.monitors[i_monitor].dpi);
+                    XRRFreeOutputInfo(output_info);
                 }
                 server.monitors[i_monitor].names[crtc_info->noutput] = NULL;
                 XRRFreeCrtcInfo(crtc_info);
@@ -357,6 +383,7 @@ void get_monitors()
                 server.monitors[i].width = info[i].width;
                 server.monitors[i].height = info[i].height;
                 server.monitors[i].names = NULL;
+                server.monitors[i].dpi = 96;
             }
         }
 
@@ -393,6 +420,7 @@ void get_monitors()
         server.monitors[0].width = DisplayWidth(server.display, server.screen);
         server.monitors[0].height = DisplayHeight(server.display, server.screen);
         server.monitors[0].names = 0;
+        server.monitors[0].dpi = 96;
     }
 }
 
@@ -523,7 +551,8 @@ int get_current_desktop()
     //	fprintf(stderr, "tint2: \n");
     //	fprintf(stderr, "tint2: Work area size: %d x %d\n", work_area_width, work_area_height);
     //	fprintf(stderr, "tint2: Viewport pos: %d x %d\n", viewport_x, viewport_y);
-    //	fprintf(stderr, "tint2: Viewport i: %d\n", (viewport_y / work_area_height) * ncols + viewport_x / work_area_width);
+    //	fprintf(stderr, "tint2: Viewport i: %d\n", (viewport_y / work_area_height) * ncols + viewport_x /
+    //work_area_width);
 
     int result = (viewport_y / work_area_height) * ncols + viewport_x / work_area_width;
     return MAX(0, MIN(server.num_desktops - 1, result));
@@ -648,9 +677,10 @@ void handle_crash(const char *reason)
 #endif
 }
 
-void x11_io_error(Display *display)
+int x11_io_error(Display *display)
 {
     handle_crash("X11 I/O error");
+    return 0;
 }
 
 #ifdef HAVE_SN

src/util/server.h

@@ -107,6 +107,7 @@ typedef struct Monitor {
     int y;
     int width;
     int height;
+    int dpi;
     gboolean primary;
     gchar **names;
 } Monitor;
@@ -163,12 +164,12 @@ void send_event32(Window win, Atom at, long data1, long data2, long data3);
 int get_property32(Window win, Atom at, Atom type);
 void *server_get_property(Window win, Atom at, Atom type, int *num_results);
 Atom server_get_atom(char *atom_name);
-void server_catch_error(Display *d, XErrorEvent *ev);
+int server_catch_error(Display *d, XErrorEvent *ev);
 void server_init_atoms();
 void server_init_visual();
 void server_init_xdamage();
 
-void x11_io_error(Display *display);
+int x11_io_error(Display *display);
 void handle_crash(const char *reason);
 
 // detect root background

src/util/timer.c

@@ -25,6 +25,7 @@
 #include "timer.h"
 #include "test.h"
 
+bool warnings_for_timers = true;
 bool debug_timers = false;
 #define MOCK_ORIGIN 1000000
 
@@ -59,7 +60,7 @@ void init_timer(Timer *timer, const char *name)
 
 void destroy_timer(Timer *timer)
 {
-    if (!g_list_find(timers, timer)) {
+    if (warnings_for_timers && !g_list_find(timers, timer)) {
         fprintf(stderr, RED "tint2: Attempt to destroy nonexisting timer: %s" RESET "\n", timer->name_);
         return;
     }

src/util/timer.h

@@ -23,6 +23,7 @@
 #include <sys/time.h>
 #include "bool.h"
 
+extern bool warnings_for_timers;
 extern bool debug_timers;
 
 typedef void TimerCallback(void *arg);

src/util/window.c

@@ -21,6 +21,7 @@
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/Xatom.h>
+#include <X11/extensions/Xrender.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -383,28 +384,42 @@ void smooth_thumbnail(cairo_surface_t *image_surface)
     }
 }
 
-// This is measured to be slightly faster.
+// This is measured to be slightly faster than XGetPixel.
-#define GetPixel(ximg, x, y) ((u_int32_t *)&(ximg->data[y * ximg->bytes_per_line]))[x]
+static u_int32_t GetPixel(XImage *ximg, unsigned x, unsigned y)
-//#define GetPixel XGetPixel
+{
+    if (x >= ximg->width || y >= ximg->height) {
+        fprintf(stderr, RED "GetPixel read overflow: %u %u %d %d\n",
+                x, y, ximg->width, ximg->height);
+        return 0;
+    }
+    return ((u_int32_t *)&(ximg->data[y * ximg->bytes_per_line]))[x];
+}
 
+// TODO: the xrender method only works well if there is a compositor running
 cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean use_shm)
 {
+    fprintf(stderr, GREEN "tint2: win=%u: getting thumbnail of size %u" RESET "\n", win, size);
     cairo_surface_t *result = NULL;
     XWindowAttributes wa;
     if (!XGetWindowAttributes(server.display, win, &wa) || wa.width <= 0 || wa.height <= 0 ||
-        wa.map_state != IsViewable)
+            wa.map_state != IsViewable) {
+        fprintf(stderr, YELLOW "tint2: win=%u: no win attributes" RESET "\n", win);
         goto err0;
+    }
 
-    if (window_is_iconified(win))
+    if (window_is_iconified(win)) {
+        fprintf(stderr, YELLOW "tint2: win=%u: no thumbnail for minimized window" RESET "\n", win);
         goto err0;
+    }
 
     size_t w, h;
-    w = (size_t)wa.width;
+    w = (size_t)wa.width + wa.x;
-    h = (size_t)wa.height;
+    h = (size_t)wa.height + wa.y;
     size_t tw, th, fw;
     size_t ox, oy;
     tw = size;
     th = h * tw / w;
+    double scale = th / (double)h;
     if (th > tw * 0.618) {
         th = (size_t)(tw * 0.618);
         fw = w * th / h;
@@ -414,20 +429,69 @@ cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean u
         fw = tw;
         ox = oy = 0;
     }
+    if (!w || !h || !tw || !th || !fw) {
+        fprintf(stderr, YELLOW "tint2: win=%u: no thumbnail for size 0x0" RESET "\n", win);
+        goto err0;
+    }
 
-    XShmSegmentInfo shminfo;
+    XImage *ximg = NULL;
-    XImage *ximg;
+
-    if (use_shm)
+    XGetWindowAttributes(server.display, win, &wa);
-        ximg = XShmCreateImage(server.display,
+    if (wa.map_state != IsViewable) {
-                               wa.visual,
+        fprintf(stderr, YELLOW "tint2: win=%u: no thumbnail for non-viewable window" RESET "\n", win);
-                               (unsigned)wa.depth,
+        goto err4;
-                               ZPixmap,
+    }
-                               NULL,
+
-                               &shminfo,
+    Pixmap pix = XCreatePixmap(server.display, win, tw, th, wa.depth);
-                               (unsigned)w,
+    if (!pix) {
-                               (unsigned)h);
+        fprintf(stderr, YELLOW "tint2: win=%u: no pixmap" RESET "\n", win);
-    else
+        goto err4;
-        ximg = XGetImage(server.display, win, 0, 0, (unsigned)w, (unsigned)h, AllPlanes, ZPixmap);
+    }
+    XRenderPictureAttributes attrs = {
+        .repeat = RepeatNone
+    };
+    XRenderPictFormat *fmt = XRenderFindVisualFormat(server.display, wa.visual);
+    if (!fmt) {
+        fprintf(stderr, YELLOW "tint2: win=%u: no XRender format" RESET "\n", win);
+        goto err4;
+    }
+    Picture src_pic = XRenderCreatePicture(server.display, win, fmt, CPRepeat, &attrs);
+    if (!src_pic) {
+        fprintf(stderr, YELLOW "tint2: win=%u: no src picture" RESET "\n", win);
+        goto err4;
+    }
+    Picture dst_pic = XRenderCreatePicture(server.display, pix, fmt, CPRepeat, &attrs);
+    if (!dst_pic) {
+        fprintf(stderr, YELLOW "tint2: win=%u: no src picture" RESET "\n", win);
+        goto err4;
+    }
+    fprintf(stderr, GREEN "tint2: win=%u: transformation %u %u %f xy %d %d" RESET "\n", win, ox, oy, scale,
+            wa.x, wa.y);
+    XTransform transform = {
+        {
+            {
+                XDoubleToFixed(1./scale),
+                XDoubleToFixed(0),
+                XDoubleToFixed(ox-wa.x/scale)
+            },
+            {
+                XDoubleToFixed(0),
+                XDoubleToFixed(1./scale),
+                XDoubleToFixed(oy-wa.y/scale)
+            },
+            {
+                XDoubleToFixed(0),
+                XDoubleToFixed(0),
+                XDoubleToFixed(1)
+            }
+        }
+    };
+    XRenderSetPictureTransform(server.display, src_pic, &transform);
+    XRenderSetPictureFilter(server.display, src_pic, FilterBilinear, NULL, 0);
+    XRenderComposite(server.display, PictOpSrc, src_pic, None, dst_pic, 0, 0, 0, 0, 0, 0, w, h);
+    XSync(server.display, False);
+
+    ximg = XGetImage(server.display, pix, 0, 0, (unsigned)tw, (unsigned)th, AllPlanes, ZPixmap);
     if (!ximg) {
         fprintf(stderr, RED "tint2: !ximg" RESET "\n");
         goto err0;
@@ -436,87 +500,32 @@ cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean u
         fprintf(stderr, RED "tint2: unusual bits_per_pixel" RESET "\n");
         goto err1;
     }
-    if (use_shm) {
-        shminfo.shmid = shmget(IPC_PRIVATE, (size_t)(ximg->bytes_per_line * ximg->height), IPC_CREAT | 0777);
-        if (shminfo.shmid < 0) {
-            fprintf(stderr, RED "tint2: !shmget" RESET "\n");
-            goto err1;
-        }
-        shminfo.shmaddr = ximg->data = (char *)shmat(shminfo.shmid, 0, 0);
-        if (!shminfo.shmaddr) {
-            fprintf(stderr, RED "tint2: !shmat" RESET "\n");
-            goto err2;
-        }
-        shminfo.readOnly = False;
-        if (!XShmAttach(server.display, &shminfo)) {
-            fprintf(stderr, RED "tint2: !xshmattach" RESET "\n");
-            goto err3;
-        }
-        if (!XShmGetImage(server.display, win, ximg, 0, 0, AllPlanes)) {
-            fprintf(stderr, RED "tint2: !xshmgetimage" RESET "\n");
-            goto err4;
-        }
-    }
-
-    XGetWindowAttributes(server.display, win, &wa);
-    if (wa.map_state != IsViewable)
-        goto err4;
 
+    fprintf(stderr, GREEN "tint2: creating image surface %ux%u" RESET "\n", tw, th);
     result = cairo_image_surface_create(CAIRO_FORMAT_RGB24, (int)tw, (int)th);
     u_int32_t *data = (u_int32_t *)cairo_image_surface_get_data(result);
     memset(data, 0, tw * th);
 
-    // Fixed-point precision
-    const size_t prec = 1 << 16;
-    const size_t xstep = w * prec / fw;
-    const size_t ystep = h * prec / th;
-
-    const size_t offset_y1 = 0 * ystep / 8;
-    const size_t offset_x1 = 3 * xstep / 8;
-
-    const size_t offset_y2 = 1 * ystep / 8;
-    const size_t offset_x2 = 6 * xstep / 8;
-
-    const size_t offset_y3 = 4 * ystep / 8;
-    const size_t offset_x3 = 2 * xstep / 8;
-
-    const size_t offset_y4 = 4 * ystep / 8;
-    const size_t offset_x4 = 4 * xstep / 8;
-
-    const size_t offset_y5 = 4 * ystep / 8;
-    const size_t offset_x5 = 7 * xstep / 8;
-
-    const size_t offset_y6 = 6 * ystep / 8;
-    const size_t offset_x6 = 1 * xstep / 8;
-
-    const size_t offset_y7 = 7 * ystep / 8;
-    const size_t offset_x7 = 6 * xstep / 8;
-
     const u_int32_t rmask = (u_int32_t)ximg->red_mask;
     const u_int32_t gmask = (u_int32_t)ximg->green_mask;
     const u_int32_t bmask = (u_int32_t)ximg->blue_mask;
-    for (size_t yt = 0, y = 0; yt < th; yt++, y += ystep) {
+    for (size_t y = 0; y < th; y++) {
-        for (size_t xt = 0, x = 0; xt < fw; xt++, x += xstep) {
+        for (size_t x = 0; x < tw; x++) {
-            size_t j = yt * tw + ox + xt;
+            u_int32_t c = (u_int32_t)XGetPixel(ximg, x, y);
-            u_int32_t c1 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x1) / prec), (int)((y + offset_y1) / prec));
+            data[y * tw + x] = c;
-            u_int32_t c2 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x2) / prec), (int)((y + offset_y2) / prec));
-            u_int32_t c3 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x3) / prec), (int)((y + offset_y3) / prec));
-            u_int32_t c4 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x4) / prec), (int)((y + offset_y4) / prec));
-            u_int32_t c5 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x5) / prec), (int)((y + offset_y5) / prec));
-            u_int32_t c6 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x6) / prec), (int)((y + offset_y6) / prec));
-            u_int32_t c7 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x7) / prec), (int)((y + offset_y7) / prec));
-            u_int32_t b = ((c1 & bmask) + (c2 & bmask) + (c3 & bmask) + (c4 & bmask) + (c5 & bmask) * 2 + (c6 & bmask) +
-                           (c7 & bmask)) /
-                          8;
-            u_int32_t g = ((c1 & gmask) + (c2 & gmask) + (c3 & gmask) + (c4 & gmask) + (c5 & gmask) * 2 + (c6 & gmask) +
-                           (c7 & gmask)) /
-                          8;
-            u_int32_t r = ((c1 & rmask) + (c2 & rmask) + (c3 & rmask) + (c4 & rmask) + (c5 & rmask) * 2 + (c6 & rmask) +
-                           (c7 & rmask)) /
-                          8;
-            data[j] = (r & rmask) | (g & gmask) | (b & bmask);
         }
     }
+
+    imlib_context_set_drawable(pix);
+    Imlib_Image img = imlib_create_image_from_drawable(0, 0, 0, tw, th, 1);
+    //Imlib_Image img = imlib_create_image_using_data(tw, th, data);
+    imlib_context_set_image(img);
+    char path[256];
+    static unsigned count = 0;
+    sprintf(path, "thumb-%u-%u.png", win, count++);
+    imlib_save_image(path);
+    imlib_free_image();
+
     // Convert to argb32
     if (rmask & 0xff0000) {
         // argb32 or rgb24 => Nothing to do
@@ -539,24 +548,23 @@ cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean u
     }
 
     // 2nd pass
-    smooth_thumbnail(result);
+    //smooth_thumbnail(result);
+    cairo_surface_flush(result);
 
     if (ximg) {
         XDestroyImage(ximg);
         ximg = NULL;
     }
-err4:
-    if (use_shm)
-        XShmDetach(server.display, &shminfo);
-err3:
-    if (use_shm)
-        shmdt(shminfo.shmaddr);
-err2:
-    if (use_shm)
-        shmctl(shminfo.shmid, IPC_RMID, NULL);
 err1:
+err4:
     if (ximg)
         XDestroyImage(ximg);
+    if (src_pic)
+        XRenderFreePicture(server.display, src_pic);
+    if (dst_pic)
+        XRenderFreePicture(server.display, dst_pic);
+    if (pix)
+        XFreePixmap(server.display, pix);
 err0:
     return result;
 }
@@ -576,24 +584,11 @@ gboolean cairo_surface_is_blank(cairo_surface_t *image_surface)
 cairo_surface_t *get_window_thumbnail(Window win, int size)
 {
     cairo_surface_t *image_surface = NULL;
-    const gboolean shm_allowed = FALSE;
-    if (shm_allowed && server.has_shm && server.composite_manager) {
-        image_surface = get_window_thumbnail_ximage(win, (size_t)size, TRUE);
-        if (image_surface && cairo_surface_is_blank(image_surface)) {
-            cairo_surface_destroy(image_surface);
-            image_surface = NULL;
-        }
-        if (debug_thumbnails) {
-            if (!image_surface)
-                fprintf(stderr, YELLOW "tint2: XShmGetImage failed, trying slower method" RESET "\n");
-            else
-                fprintf(stderr, "tint2: captured window using XShmGetImage\n");
-        }
-    }
 
     if (!image_surface) {
         image_surface = get_window_thumbnail_ximage(win, (size_t)size, FALSE);
         if (image_surface && cairo_surface_is_blank(image_surface)) {
+            fprintf(stderr, RED "tint2: captured blank thumbnail" RESET "\n");
             cairo_surface_destroy(image_surface);
             image_surface = NULL;
         }

themes/horizontal-dark-opaque.tint2rc

@@ -201,7 +201,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/horizontal-dark-transparent.tint2rc

@@ -201,7 +201,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/horizontal-light-opaque.tint2rc

@@ -212,7 +212,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/horizontal-light-transparent.tint2rc

@@ -201,7 +201,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/tint2rc

@@ -175,7 +175,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 battery_font_color = #ffffff 100
 bat1_format = 

themes/vertical-dark-opaque.tint2rc

@@ -201,7 +201,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/vertical-dark-transparent.tint2rc

@@ -201,7 +201,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/vertical-light-opaque.tint2rc

@@ -212,7 +212,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

themes/vertical-light-transparent.tint2rc

@@ -201,7 +201,7 @@ clock_dwheel_command =
 # Battery
 battery_tooltip = 1
 battery_low_status = 10
-battery_low_cmd = notify-send "battery low"
+battery_low_cmd = xmessage 'tint2: Battery low!'
 battery_full_cmd = 
 bat1_font = sans 8
 bat2_font = sans 6

tint2.files

@@ -1,3 +1,4 @@
+configure
 doc/tint2.1
 sample/icon_and_text_1.tint2rc
 sample/icon_and_text_2.tint2rc
@@ -59,8 +60,12 @@ src/util/area.c
 src/util/area.h
 src/util/blur.c
 src/util/blur.h
+src/util/bt.c
+src/util/bt.h
 src/util/common.c
 src/util/common.h
+src/util/server.c
+src/util/server.h
 src/util/strlcat.c
 src/util/strlcat.h
 src/util/timer.c