Updated readme for 0.12-rc6

This reverts commit cb17e5a662.

AUTHORS

@@ -5,6 +5,7 @@ tint2 is developped by :
 - Euan Freeman <euan04@gmail.com> (tintwizard)
 - Christian Ruppert <Spooky85@gmail.com> (autotools build system)
 - Ovidiu M <mrovi9000 at gmail.com> : launcher, bug fixes
+- Mishael A Sibiryakov (death@junki.org) : freespace
 
 tint2 is based on ttm source code (http://code.google.com/p/ttm/)
 - 2007-2008 Pål Staurland <staura@gmail.com>

CMakeLists.txt

@@ -42,6 +42,7 @@ include_directories( ${PROJECT_BINARY_DIR}
                      src/launcher
                      src/tooltip
                      src/util
+					 src/freespace
                      ${X11_INCLUDE_DIRS}
                      ${PANGOCAIRO_INCLUDE_DIRS}
                      ${PANGO_INCLUDE_DIRS}
@@ -67,6 +68,7 @@ set( SOURCES src/config.c
              src/taskbar/taskbar.c
              src/taskbar/taskbarname.c
              src/tooltip/tooltip.c
+			 src/freespace/freespace.c
 			 src/util/area.c
              src/util/common.c
              src/util/strnatcmp.c

ChangeLog

@@ -1,4 +1,4 @@
-2015-05-23 master
+2015-06-12 master
 - Note: the changes listed here are based on the previous release tint2 0.11, however some distributions (e.g. Debian)
   offered packages using newer commits and/or patches; thus from the user's perspective some of these features are
   already present. They are marked with '(already released by distros)'.
@@ -12,7 +12,9 @@
   - Icons (system tray, task buttons, launcher):
     - Changed rendering method to fix icon corruptions (please report any problems)
   - System tray:
-    - Workaround for misbehaving applications leaving empty tray icons
+    - Icon rendering is faster
+    - Several kinds of graphical corruptions have been fixed
+    - Added workaround for misbehaving applications leaving empty tray icons
   - Many bugfixes
 - New config options (see https://gitlab.com/o9000/tint2/wikis/Configure):
   - Panel:
@@ -25,6 +27,7 @@
     - taskbar_hide_inactive_tasks
     - taskbar_sort_order
     - taskbar_name (already released by distros)
+	- task_align (already released by distros)
   - Launcher:
     - launcher* (already released by distros)
     - launcher_apps_dir (previously patched in by some distros)
@@ -32,6 +35,7 @@
     - launcher_icon_theme_override
   - System tray:
     - systray_monitor
+  - Freespace (already released by distros)
 - Config options with changed behavior:
   - Panel:
     - panel_dock: previously, 'panel_dock = 1' was actually not placing the panel into the dock. This option now
@@ -46,8 +50,37 @@
       Reason for change: legibility improved for transparent panels.
   - Launcher:
     - launcher_item_app: now it expands leading ~ to the path to the user's home directory.
+- Known issues:
+  - tint2 might close unexpectedly and/or cause X to freeze on certain ATI graphics cards.
+    Workaround: set 'disable_transparency = 1' in the config.
+    Reference: https://gitlab.com/o9000/tint2/issues/497
 - Project hosting:
   - Migrated from https://code.google.com/p/tint2 to https://gitlab.com/o9000/tint2 and switched from svn to git
+- Bugfixes:
+  - task switching from tint2 using the mouse wheel (mouse_scroll_up = prev_task and mouse_scroll_down = next_task) with
+    multiple desktops and taskbar_mode = multi_desktop when hovering over the first/last window in the taskbar was broken;
+    also when a window is set to appear on all desktops;
+  - the launcher was not loading an icon if the icon theme was not providing it in a size close to the value of launcher_icon_size;
+  - the launcher was not loading an icon if the extension was incorrect (e.g. file contents were PNG but the file name
+    had extension SVG);
+  - some launcher icons (PNG files saved with an indexed colormap and alpha mask) were sometimes rendered with white instead of
+    transparency;
+  - icons looked washed out when the panel was very transparent;
+  - the panel border was rendered in the background of every systray icon; sometimes systray icons were rendered in the
+    background of other icons;
+  - a crash caused by a change that prevents Google Chrome (and possibly other misbehaving applications) from leaving a large
+    number of empty icons in the system tray;
+  - a crash caused by the system tray code on computers with ATI cards;
+  - the panel window had a shadow;
+  - some ATI drivers return an extra monitor with size zero which should be ignored when using panel_monitor = all;
+  - the battery applet was sometimes working incorrectly with certain laptop models (the battery applet stopped updating after
+    suspend with the battery unplugged);
+  - crashed caused by incomplete or malformed config files;
+  - with the fvwm window manager, the window title was sometimes not displayed correctly if it changed right after an
+    application was started;
+  - seconds were not updating in the clock;
+  - tint2 hang triggered when an application started from the launcher was closed and startup notifications were enabled;
+  - the code that loads SVG icons was using a lot of memory.
 
 2010-06-26
 - unhide tint2 panel when dragging something

README.md

@@ -1,14 +1,14 @@
-### New unstable release: 0.12-rc5
+### New unstable release: 0.12-rc6
 Changes: https://gitlab.com/o9000/tint2/blob/master/ChangeLog
 
 Documentation: https://gitlab.com/o9000/tint2/wikis/home
 
 Try it out with (see also [dependencies](https://gitlab.com/o9000/tint2/wikis/Install#dependencies)):
 ```
-mkdir tint2-0.12-rc5
+mkdir tint2-0.12-rc6
-cd tint2-0.12-rc5
+cd tint2-0.12-rc6
-wget 'https://gitlab.com/o9000/tint2/repository/archive.tar.gz?ref=v0.12-rc5' --output-document tint2-0.12-rc5.tar.gz
+wget 'https://gitlab.com/o9000/tint2/repository/archive.tar.gz?ref=v0.12-rc6' --output-document tint2-0.12-rc6.tar.gz
-tar -xzf tint2-0.12-rc5.tar.gz
+tar -xzf tint2-0.12-rc6.tar.gz
 cd tint2.git
 mkdir build
 cd build

src/config.c

@@ -41,6 +41,7 @@
 
 #include "common.h"
 #include "server.h"
+#include "strnatcmp.h"
 #include "panel.h"
 #include "task.h"
 #include "taskbar.h"
@@ -153,23 +154,48 @@ int config_get_monitor(char* monitor)
 	return -1;
 }
 
+static gint compare_strings(gconstpointer a, gconstpointer b)
+{
+   return strnatcasecmp((const char*)a, (const char*)b);
+}
+
 void load_launcher_app_dir(const char *path)
 {
+    GList *subdirs = NULL;
+	GList *files = NULL;
+
     GDir *d = g_dir_open(path, 0, NULL);
 	if (d) {
 		const gchar *name;
 		while ((name = g_dir_read_name(d))) {
 			gchar *file = g_build_filename(path, name, NULL);
-			if (!g_file_test(file, G_FILE_TEST_IS_DIR) &&
+			if (!g_file_test(file, G_FILE_TEST_IS_DIR) && g_str_has_suffix(file, ".desktop")) {
-				g_str_has_suffix(file, ".desktop")) {
+				files = g_list_append(files, file);
-				panel_config.launcher.list_apps = g_slist_append(panel_config.launcher.list_apps, strdup(file));
 			} else if (g_file_test(file, G_FILE_TEST_IS_DIR)) {
-				load_launcher_app_dir(file);
+				subdirs = g_list_append(subdirs, file);
-			}
+			} else {
                 g_free(file);
+            }
 		}
 		g_dir_close(d);
 	}
+
+    subdirs = g_list_sort(subdirs, compare_strings);
+    GList *l;
+    for (l = subdirs; l; l = g_list_next(l)) {
+        gchar *dir = (gchar *)l->data;
+        load_launcher_app_dir(dir);
+        g_free(dir);
+    }
+    g_list_free(subdirs);
+
+    files = g_list_sort(files, compare_strings);
+    for (l = files; l; l = g_list_next(l)) {
+        gchar *file = (gchar *)l->data;
+        panel_config.launcher.list_apps = g_slist_append(panel_config.launcher.list_apps, strdup(file));
+        g_free(file);
+    }
+    g_list_free(files);
 }
 
 void add_entry (char *key, char *value)
@@ -518,6 +544,15 @@ void add_entry (char *key, char *value)
 			taskbar_sort_method = TASKBAR_NOSORT;
 		}
 	}
+	else if (strcmp (key, "task_align") == 0) {
+		if (strcmp(value, "center") == 0) {
+			taskbar_alignment = ALIGN_CENTER;
+		} else if (strcmp(value, "right") == 0) {
+			taskbar_alignment = ALIGN_RIGHT;
+		} else {
+			taskbar_alignment = ALIGN_LEFT;
+		}
+	}
 
 	/* Task */
 	else if (strcmp (key, "task_text") == 0)

src/freespace/freespace.c

@@ -0,0 +1,93 @@
+/**************************************************************************
+*
+* Tint2 : freespace
+*
+* Copyright (C) 2011 Mishael A Sibiryakov (death@junki.org)
+*
+* 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 <string.h>
+#include <stdio.h>
+#include <cairo.h>
+#include <cairo-xlib.h>
+#include <pango/pangocairo.h>
+#include <stdlib.h>
+
+#include "window.h"
+#include "server.h"
+#include "panel.h"
+#include "freespace.h"
+#include "common.h"
+
+void init_freespace_panel(void *p)
+{
+	Panel *panel = (Panel*)p;
+	FreeSpace *freespace = &panel->freespace;
+
+	if (freespace->area.bg == 0)
+		freespace->area.bg = &g_array_index(backgrounds, Background, 0);
+	freespace->area.parent = p;
+	freespace->area.panel = p;
+	freespace->area.size_mode = SIZE_BY_CONTENT;
+	freespace->area.resize = 1;
+	freespace->area.on_screen = 1;
+	freespace->area._resize = resize_freespace;
+}
+
+int freespace_get_max_size(Panel *p) {
+	// Get space used by every element except the freespace
+	GList *walk;
+	int size = 0;
+	for (walk = p->area.list; walk; walk = g_list_next(walk)) {
+		Area *a = (Area *)walk->data;
+
+		if (a->_resize == resize_freespace || !a->on_screen)
+			continue;
+
+		if (panel_horizontal)
+			size += a->width + (a->bg->border.width * 2) + p->area.paddingx;
+		else
+			size += a->height + (a->bg->border.width * 2) + p->area.paddingy;
+	}
+
+	if (panel_horizontal)
+		size = p->area.width - size - (p->area.bg->border.width * 2) - p->area.paddingxlr;
+	else
+		size = p->area.height - size - (p->area.bg->border.width * 2) - p->area.paddingxlr;
+
+	return size;
+}
+
+int resize_freespace(void *obj) {
+	FreeSpace *freespace = (FreeSpace*)obj;
+	Panel *panel = (Panel*)freespace->area.panel;
+	if (!freespace->area.on_screen)
+		return 0;
+
+	int old_size = panel_horizontal ? freespace->area.width : freespace->area.height;
+	int size = freespace_get_max_size(panel);
+	if (old_size == size)
+		return 0;
+
+	if (panel_horizontal) {
+		freespace->area.width = size;
+	} else {
+		freespace->area.height = size;
+	}
+
+	freespace->area.redraw = 1;
+	panel_refresh = 1;
+	return 1;
+}

src/freespace/freespace.h

@@ -0,0 +1,20 @@
+/**************************************************************************
+* Copyright (C) 2011 Mishael A Sibiryakov (death@junki.org)
+**************************************************************************/
+
+#ifndef FREESPACE_H
+#define FREESPACE_H
+
+#include "common.h"
+#include "area.h"
+
+typedef struct FreeSpace {
+	Area area;
+} FreeSpace;
+
+void cleanup_freespace();
+void init_freespace_panel(void *panel);
+
+int resize_freespace(void *obj);
+
+#endif

src/panel.c

@@ -204,6 +204,8 @@ void init_panel()
 			}
 			if (panel_items_order[k] == 'C')
 				init_clock_panel(p);
+			if (panel_items_order[k] == 'F' && !strstr(panel_items_order, "T"))
+				init_freespace_panel(p);
 		}
 		set_panel_items_order(p);
 
@@ -322,13 +324,13 @@ void init_panel_size_and_position(Panel *panel)
 
 int resize_panel(void *obj)
 {
-	resize_by_layout(obj, 0);
+	Panel *panel = (Panel*)obj;
+	resize_by_layout(panel, 0);
 	
 	//printf("resize_panel\n");
 	if (panel_mode != MULTI_DESKTOP && taskbar_enabled) {
 		// propagate width/height on hidden taskbar
 		int i, width, height;
-		Panel *panel = (Panel*)obj;
 		width = panel->taskbar[server.desktop].area.width;
 		height = panel->taskbar[server.desktop].area.height;
 		for (i=0 ; i < panel->nb_desktop ; i++) {
@@ -339,7 +341,6 @@ int resize_panel(void *obj)
 	}
 	if (panel_mode == MULTI_DESKTOP && taskbar_enabled && taskbar_distribute_size) {
 		// Distribute the available space between taskbars
-		Panel *panel = (Panel*)obj;
 
 		// Compute the total available size, and the total size requested by the taskbars
 		int total_size = 0;
@@ -354,7 +355,7 @@ int resize_panel(void *obj)
 			}
 
 			Taskbar *taskbar = &panel->taskbar[i];
-			GSList *l;
+			GList *l;
 			for (l = taskbar->area.list; l; l = l->next) {
 				Area *child = l->data;
 				if (!child->on_screen)
@@ -389,7 +390,7 @@ int resize_panel(void *obj)
 
 				int requested_size = (2 * taskbar->area.bg->border.width) + (2 * taskbar->area.paddingxlr);
 				int items = 0;
-				GSList *l = taskbar->area.list;
+				GList *l = taskbar->area.list;
 				if (taskbarname_enabled)
 					l = l->next;
 				for (; l; l = l->next) {
@@ -418,6 +419,8 @@ int resize_panel(void *obj)
 			}
 		}
 	}
+	if (panel->freespace.area.on_screen)
+		resize_freespace(&panel->freespace);
 	return 0;
 }
 
@@ -482,29 +485,31 @@ void set_panel_items_order(Panel *p)
 	int k, j;
 	
 	if (p->area.list) {
-		g_slist_free(p->area.list);
+		g_list_free(p->area.list);
 		p->area.list = 0;
 	}
 
 	for (k=0 ; k < strlen(panel_items_order) ; k++) {
 		if (panel_items_order[k] == 'L') {
-			p->area.list = g_slist_append(p->area.list, &p->launcher);
+			p->area.list = g_list_append(p->area.list, &p->launcher);
 			p->launcher.area.resize = 1;
 		}
 		if (panel_items_order[k] == 'T') {
 			for (j=0 ; j < p->nb_desktop ; j++)
-				p->area.list = g_slist_append(p->area.list, &p->taskbar[j]);
+				p->area.list = g_list_append(p->area.list, &p->taskbar[j]);
 		}
 #ifdef ENABLE_BATTERY
 		if (panel_items_order[k] == 'B') 
-			p->area.list = g_slist_append(p->area.list, &p->battery);
+			p->area.list = g_list_append(p->area.list, &p->battery);
 #endif
 		int i = p - panel1;
 		if (panel_items_order[k] == 'S' && systray_on_monitor(i, nb_panel)) {
-			p->area.list = g_slist_append(p->area.list, &systray);
+			p->area.list = g_list_append(p->area.list, &systray);
 		}
 		if (panel_items_order[k] == 'C')
-			p->area.list = g_slist_append(p->area.list, &p->clock);
+			p->area.list = g_list_append(p->area.list, &p->clock);
+		if (panel_items_order[k] == 'F')
+			p->area.list = g_list_append(p->area.list, &p->freespace);
 	}
 	init_rendering(&p->area, 0);
 }
@@ -629,7 +634,7 @@ void set_panel_background(Panel *p)
 	}
 
 	// redraw panel's object
-	GSList *l0;
+	GList *l0;
 	Area *a;
 	for (l0 = p->area.list; l0 ; l0 = l0->next) {
 		a = l0->data;
@@ -695,7 +700,7 @@ Taskbar *click_taskbar (Panel *panel, int x, int y)
 
 Task *click_task (Panel *panel, int x, int y)
 {
-	GSList *l0;
+	GList *l0;
 	Taskbar *tskbar;
 
 	if ( (tskbar = click_taskbar(panel, x, y)) ) {
@@ -797,7 +802,7 @@ Area* click_area(Panel *panel, int x, int y)
 	Area* new_result = result;
 	do {
 		result = new_result;
-		GSList* it = result->list;
+		GList* it = result->list;
 		while (it) {
 			Area* a = it->data;
 			if (a->on_screen && x >= a->posx && x <= (a->posx + a->width)

src/panel.h

@@ -20,6 +20,7 @@
 #include "taskbar.h"
 #include "systraybar.h"
 #include "launcher.h"
+#include "freespace.h"
 
 #ifdef ENABLE_BATTERY
 #include "battery.h"
@@ -116,6 +117,8 @@ typedef struct {
 
 	Launcher launcher;
 
+	FreeSpace freespace;
+
 	// autohide
 	int is_hidden;
 	int hidden_width, hidden_height;

src/systray/systraybar.c

@@ -41,8 +41,6 @@ GSList *icons;
 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
 
-#define FORCE_COMPOSITED_RENDERING  1
-
 // selection window
 Window net_sel_win = None;
 
@@ -53,6 +51,7 @@ int systray_enabled;
 int systray_max_icon_size;
 int systray_monitor;
 int chrono;
+int systray_composited;
 // background pixmap if we render ourselves the icons
 static Pixmap render_background;
 
@@ -86,16 +85,19 @@ void cleanup_systray()
 
 void init_systray()
 {
-	start_net();
-
 	if (!systray_enabled)
 		return;
 
-	if (!server.visual32 && (systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0)) {
+	systray_composited = !server.disable_transparency && server.visual32 && server.colormap32;
-		printf("No 32 bit visual for your X implementation. 'systray_asb = 100 0 0' will be forced\n");
+	printf("Systray composited rendering %s\n", systray_composited ? "on" : "off");
+
+	if (!systray_composited) {
+		printf("systray_asb forced to 100 0 0\n");
 		systray.alpha = 100;
 		systray.brightness = systray.saturation = 0;
 	}
+
+	start_net();
 }
 
 
@@ -123,8 +125,9 @@ void init_systray_panel(void *p)
 
 void draw_systray(void *obj, cairo_t *c)
 {
-	if (FORCE_COMPOSITED_RENDERING || server.real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
+	if (systray_composited) {
-		if (render_background) XFreePixmap(server.dsp, render_background);
+		if (render_background)
+			XFreePixmap(server.dsp, render_background);
 		render_background = XCreatePixmap(server.dsp, server.root_win, systray.area.width, systray.area.height, server.depth);
 		XCopyArea(server.dsp, systray.area.pix, render_background, server.gc, 0, 0, systray.area.width, systray.area.height, 0, 0);
 	}
@@ -161,8 +164,7 @@ int resize_systray(void *obj)
 		sysbar->marging = height - (sysbar->icons_per_column-1)*(sysbar->icon_size+sysbar->area.paddingx) - sysbar->icon_size;
 		sysbar->icons_per_row = count / sysbar->icons_per_column + (count%sysbar->icons_per_column != 0);
 		systray.area.width = (2 * systray.area.bg->border.width) + (2 * systray.area.paddingxlr) + (sysbar->icon_size * sysbar->icons_per_row) + ((sysbar->icons_per_row-1) * systray.area.paddingx);
-	}
+	} else {
-	else {
 		int width = sysbar->area.width - 2*sysbar->area.bg->border.width - 2*sysbar->area.paddingy;
 		// here icons_per_row always higher than 0
 		sysbar->icons_per_row = (width+sysbar->area.paddingx) / (sysbar->icon_size+sysbar->area.paddingx);
@@ -187,45 +189,46 @@ void on_change_systray (void *obj)
 	if (panel_horizontal) {
 		posy = start;
 		posx = systray.area.posx + systray.area.bg->border.width + systray.area.paddingxlr;
-	}
+	} else {
-	else {
 		posx = start;
 		posy = systray.area.posy + systray.area.bg->border.width + systray.area.paddingxlr;
 	}
 
 	TrayWindow *traywin;
 	GSList *l;
-	for (i=1, l = systray.list_icons; l ; i++, l = l->next) {
+	for (i = 1, l = systray.list_icons; l ; i++, l = l->next) {
 		traywin = (TrayWindow*)l->data;
 		if (traywin->hide)
 			continue;
 
 		traywin->y = posy;
 		traywin->x = posx;
-		// printf("systray %d : pos %d, %d\n", traywin->tray_id, posx, posy);
+		// printf("systray %d %d : pos %d, %d\n", traywin->parent, traywin->win, posx, posy);
 		traywin->width = sysbar->icon_size;
 		traywin->height = sysbar->icon_size;
 		if (panel_horizontal) {
-			if (i % sysbar->icons_per_column)
+			if (i % sysbar->icons_per_column) {
 				posy += sysbar->icon_size + sysbar->area.paddingx;
-			else {
+			} else {
 				posy = start;
 				posx += (sysbar->icon_size + systray.area.paddingx);
 			}
-		}
+		} else {
-		else {
+			if (i % sysbar->icons_per_row) {
-			if (i % sysbar->icons_per_row)
 				posx += sysbar->icon_size + systray.area.paddingx;
-			else {
+			} else {
 				posx = start;
 				posy += (sysbar->icon_size + systray.area.paddingx);
 			}
 		}
 
 		// position and size the icon window
-		XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, sysbar->icon_size, sysbar->icon_size);
+		XMoveResizeWindow(server.dsp, traywin->parent, traywin->x, traywin->y, traywin->width, traywin->height);
-		XResizeWindow(server.dsp, traywin->tray_id, sysbar->icon_size, sysbar->icon_size);
+		if (traywin->reparented) {
+			XMoveResizeWindow(server.dsp, traywin->win, 0, 0, traywin->width, traywin->height);
 		}
+	}
+	refresh_systray = 1;
 }
 
 
@@ -239,10 +242,10 @@ void start_net()
 		if (!systray_enabled)
 			stop_net();
 		return;
-	}
+	} else {
-	else
 		if (!systray_enabled)
 			return;
+	}
 
 	Window win = XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN);
 
@@ -277,7 +280,7 @@ void start_net()
 	long orient = 0;
 	XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 1);
 	VisualID vid;
-	if (server.visual32 && (FORCE_COMPOSITED_RENDERING || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0))
+	if (systray_composited)
 		vid = XVisualIDFromVisual(server.visual32);
 	else
 		vid = XVisualIDFromVisual(server.visual);
@@ -327,10 +330,9 @@ void stop_net()
 gboolean error;
 int window_error_handler(Display *d, XErrorEvent *e)
 {
-	d=d;e=e;
 	error = TRUE;
 	if (e->error_code != BadWindow) {
-		printf("error_handler %d\n", e->error_code);
+		printf("systray: error code %d\n", e->error_code);
 	}
 	return 0;
 }
@@ -342,22 +344,20 @@ static gint compare_traywindows(gconstpointer a, gconstpointer b)
 	const TrayWindow * traywin_b = (TrayWindow*)b;
 
 	if (traywin_a->empty && !traywin_b->empty)
-		return 1;
+		return 1 * (systray.sort == SYSTRAY_SORT_RIGHT2LEFT ? -1 : 1);
 	if (!traywin_a->empty && traywin_b->empty)
-		return -1;
+		return -1 * (systray.sort == SYSTRAY_SORT_RIGHT2LEFT ? -1 : 1);
 
 	if (systray.sort == SYSTRAY_SORT_ASCENDING ||
 		systray.sort == SYSTRAY_SORT_DESCENDING) {
 		XTextProperty name_a, name_b;
 
-		if (XGetWMName(server.dsp, traywin_a->tray_id, &name_a) == 0) {
+		if (XGetWMName(server.dsp, traywin_a->win, &name_a) == 0) {
 			return -1;
-		}
+		} else if (XGetWMName(server.dsp, traywin_b->win, &name_b) == 0) {
-		else if (XGetWMName(server.dsp, traywin_b->tray_id, &name_b) == 0) {
 			XFree(name_a.value);
 			return 1;
-		}
+		} else {
-		else {
 			gint retval = g_ascii_strncasecmp((char*)name_a.value, (char*)name_b.value, -1) *
 						  (systray.sort == SYSTRAY_SORT_ASCENDING ? 1 : -1);
 			XFree(name_a.value);
@@ -376,13 +376,13 @@ static gint compare_traywindows(gconstpointer a, gconstpointer b)
 }
 
 
-gboolean add_icon(Window id)
+gboolean add_icon(Window win)
 {
 	TrayWindow *traywin;
-	XErrorHandler old;
 	Panel *panel = systray.area.panel;
 	int hide = 0;
 
+	// Get the process ID of the application that created the window
 	int pid = 0;
 	{
 		Atom actual_type;
@@ -390,112 +390,66 @@ gboolean add_icon(Window id)
 		unsigned long nitems;
 		unsigned long bytes_after;
 		unsigned char *prop = 0;
-		int ret = XGetWindowProperty(server.dsp, id, server.atom._NET_WM_PID, 0, 1024, False, AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop);
+		int ret = XGetWindowProperty(server.dsp, win, server.atom._NET_WM_PID, 0, 1024, False, AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop);
 		if (ret == Success && prop) {
 			pid = prop[1] * 256;
 			pid += prop[0];
 		}
 	}
 
+	// Check if the application leaves behind empty icons
 	GSList *l;
 	int num_empty_same_pid = 0;
 	for (l = systray.list_icons; l; l = l->next) {
-		if (((TrayWindow*)l->data)->tray_id == id)
+		if (((TrayWindow*)l->data)->win == win)
 			return FALSE;
 		if (pid && ((TrayWindow*)l->data)->pid == pid && ((TrayWindow*)l->data)->empty)
 			num_empty_same_pid++;
 	}
 
+	// Remove empty icons if the application leaves behind more than 1
 	const int max_num_empty_same_pid = 0;
 	if (num_empty_same_pid > max_num_empty_same_pid) {
 		for (l = systray.list_icons; l; l = l->next) {
 			if (pid && ((TrayWindow*)l->data)->pid == pid && ((TrayWindow*)l->data)->empty) {
 				num_empty_same_pid++;
-				fprintf(stderr, "Removing tray icon %lu from misbehaving application with pid=%d\n", ((TrayWindow*)l->data)->tray_id, pid);
+				fprintf(stderr, "Removing tray icon %lu from misbehaving application with pid=%d\n", ((TrayWindow*)l->data)->win, pid);
 				remove_icon((TrayWindow*)l->data);
 				break;
 			}
 		}
 	}
-	//printf("add_icon: %d, pid %d, %d\n", id, pid, num_empty_same_pid);
+	//printf("add_icon: %d, pid %d, %d\n", win, pid, num_empty_same_pid);
 
-	error = FALSE;
+	// Create the parent window that will embed the icon
 	XWindowAttributes attr;
-	if ( XGetWindowAttributes(server.dsp, id, &attr) == False ) return FALSE;
+	if (XGetWindowAttributes(server.dsp, win, &attr) == False)
+		return FALSE;
 	unsigned long mask = 0;
 	XSetWindowAttributes set_attr;
 	Visual* visual = server.visual;
 	//printf("icon with depth: %d, width %d, height %d\n", attr.depth, attr.width, attr.height);
-	//printf("icon with depth: %d\n", attr.depth);
+	if (systray_composited || attr.depth != server.depth) {
-	if (attr.depth != server.depth || FORCE_COMPOSITED_RENDERING || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
 		visual = attr.visual;
 		set_attr.colormap = attr.colormap;
 		set_attr.background_pixel = 0;
 		set_attr.border_pixel = 0;
 		mask = CWColormap|CWBackPixel|CWBorderPixel;
-	}
+	} else {
-	else {
 		set_attr.background_pixmap = ParentRelative;
 		mask = CWBackPixmap;
 	}
-	Window parent_window;
+	Window parent = XCreateWindow(server.dsp, panel->main_win, 0, 0, 30, 30, 0, attr.depth, InputOutput, visual, mask, &set_attr);
-	parent_window = XCreateWindow(server.dsp, panel->main_win, 0, 0, 30, 30, 0, attr.depth, InputOutput, visual, mask, &set_attr);
-	old = XSetErrorHandler(window_error_handler);
-	XReparentWindow(server.dsp, id, parent_window, 0, 0);
-	// watch for the icon trying to resize itself / closing again!
-	XSelectInput(server.dsp, id, StructureNotifyMask);
-	XSync(server.dsp, False);
-	XSetErrorHandler(old);
-	if (error != FALSE) {
-		fprintf(stderr, "tint2 : not icon_swallow\n");
-		XDestroyWindow(server.dsp, parent_window);
-		return FALSE;
-	}
-
-	{
-		Atom acttype;
-		int actfmt;
-		unsigned long nbitem, bytes;
-		unsigned char *data = 0;
-		int ret;
-
-		ret = XGetWindowProperty(server.dsp, id, server.atom._XEMBED_INFO, 0, 2, False, server.atom._XEMBED_INFO, &acttype, &actfmt, &nbitem, &bytes, &data);
-		if (ret == Success) {
-			if (data) {
-				if (nbitem == 2) {
-					//hide = ((data[1] & XEMBED_MAPPED) == 0);
-					//printf("hide %d\n", hide);
-				}
-				XFree(data);
-			}
-		}
-		else {
-			fprintf(stderr, "tint2 : xembed error\n");
-			XDestroyWindow(server.dsp, parent_window);
-			return FALSE;
-		}
-	}
-	{
-		XEvent e;
-		e.xclient.type = ClientMessage;
-		e.xclient.serial = 0;
-		e.xclient.send_event = True;
-		e.xclient.message_type = server.atom._XEMBED;
-		e.xclient.window = id;
-		e.xclient.format = 32;
-		e.xclient.data.l[0] = CurrentTime;
-		e.xclient.data.l[1] = XEMBED_EMBEDDED_NOTIFY;
-		e.xclient.data.l[2] = 0;
-		e.xclient.data.l[3] = parent_window;
-		e.xclient.data.l[4] = 0;
-		XSendEvent(server.dsp, id, False, 0xFFFFFF, &e);
-	}
 
+	// Add the icon to the list
 	traywin = g_new0(TrayWindow, 1);
-	traywin->id = parent_window;
+	traywin->parent = parent;
-	traywin->tray_id = id;
+	traywin->win = win;
 	traywin->hide = hide;
 	traywin->depth = attr.depth;
+	// Reparenting is done at the first paint event when the window is positioned correctly over its empty background,
+	// to prevent graphical corruptions in icons with fake transparency
+	traywin->reparented = 0;
 	traywin->damage = 0;
 	traywin->empty = 0;
 	traywin->pid = pid;
@@ -510,45 +464,140 @@ gboolean add_icon(Window id)
 	else
 		systray.list_icons = g_slist_append(systray.list_icons, traywin);
 	systray.list_icons = g_slist_sort(systray.list_icons, compare_traywindows);
-	//printf("add_icon id %lx, %d\n", id, g_slist_length(systray.list_icons));
+	// printf("add_icon win %lx, %d\n", win, g_slist_length(systray.list_icons));
 
-	if (FORCE_COMPOSITED_RENDERING || server.real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
+	// Resize and redraw the systray
-		traywin->damage = XDamageCreate(server.dsp, traywin->id, XDamageReportRawRectangles);
-		XCompositeRedirectWindow(server.dsp, traywin->id, CompositeRedirectManual);
-	}
-
-	// show the window
-	if (!traywin->hide)
-		XMapWindow(server.dsp, traywin->tray_id);
-	if (!traywin->hide && !panel->is_hidden)
-		XMapRaised(server.dsp, traywin->id);
-
-	// changed in systray
 	systray.area.resize = 1;
+	systray.area.redraw = 1;
+	panel->area.resize = 1;
 	panel_refresh = 1;
 	return TRUE;
 }
 
+gboolean reparent_icon(TrayWindow *traywin)
+{
+	if (traywin->reparented)
+		return TRUE;
+
+	Panel* panel = systray.area.panel;
+
+	// Reparent
+	XSync(server.dsp, False);
+	error = FALSE;
+	XErrorHandler old = XSetErrorHandler(window_error_handler);
+	XReparentWindow(server.dsp, traywin->win, traywin->parent, 0, 0);
+	XSync(server.dsp, False);
+	XSetErrorHandler(old);
+	if (error != FALSE) {
+		printf("systray %d: cannot embed icon for window %lu parent %lu pid %d\n", __LINE__, traywin->win, traywin->parent, traywin->pid);
+		remove_icon(traywin);
+		return FALSE;
+	}
+
+	// Watch for the icon trying to resize itself / closing again
+	XSync(server.dsp, False);
+	error = FALSE;
+	old = XSetErrorHandler(window_error_handler);
+	XSelectInput(server.dsp, traywin->win, StructureNotifyMask);
+	XSync(server.dsp, False);
+	XSetErrorHandler(old);
+	if (error != FALSE) {
+		printf("systray %d: cannot embed icon for window %lu parent %lu pid %d\n", __LINE__, traywin->win, traywin->parent, traywin->pid);
+		remove_icon(traywin);
+		return FALSE;
+	}
+
+	traywin->reparented = 1;
+
+	// Embed into parent
+	{
+		XEvent e;
+		e.xclient.type = ClientMessage;
+		e.xclient.serial = 0;
+		e.xclient.send_event = True;
+		e.xclient.message_type = server.atom._XEMBED;
+		e.xclient.window = traywin->win;
+		e.xclient.format = 32;
+		e.xclient.data.l[0] = CurrentTime;
+		e.xclient.data.l[1] = XEMBED_EMBEDDED_NOTIFY;
+		e.xclient.data.l[2] = 0;
+		e.xclient.data.l[3] = traywin->parent;
+		e.xclient.data.l[4] = 0;
+		XSync(server.dsp, False);
+		error = FALSE;
+		XErrorHandler old = XSetErrorHandler(window_error_handler);
+		XSendEvent(server.dsp, traywin->win, False, 0xFFFFFF, &e);
+		XSync(server.dsp, False);
+		XSetErrorHandler(old);
+		if (error != FALSE) {
+			printf("systray %d: cannot embed icon for window %lu pid %d\n", __LINE__, traywin->win, traywin->pid);
+			remove_icon(traywin);
+			return FALSE;
+		}
+	}
+
+	// Check if window was embedded
+	{
+		Atom acttype;
+		int actfmt;
+		unsigned long nbitem, bytes;
+		unsigned char *data = 0;
+		int ret;
+
+		ret = XGetWindowProperty(server.dsp, traywin->win, server.atom._XEMBED_INFO, 0, 2, False, server.atom._XEMBED_INFO, &acttype, &actfmt, &nbitem, &bytes, &data);
+		if (ret == Success) {
+			if (data) {
+				if (nbitem == 2) {
+					//hide = ((data[1] & XEMBED_MAPPED) == 0);
+					//printf("hide %d\n", hide);
+				}
+				XFree(data);
+			}
+		} else {
+			fprintf(stderr, "tint2 : xembed error\n");
+			remove_icon(traywin);
+			return FALSE;
+		}
+	}
+
+	// Redirect rendering when using compositing
+	if (systray_composited) {
+		traywin->damage = XDamageCreate(server.dsp, traywin->parent, XDamageReportRawRectangles);
+		XCompositeRedirectWindow(server.dsp, traywin->parent, CompositeRedirectManual);
+	}
+
+	// Make the icon visible
+	if (!traywin->hide)
+		XMapWindow(server.dsp, traywin->win);
+	if (!traywin->hide && !panel->is_hidden)
+		XMapRaised(server.dsp, traywin->parent);
+
+	XMoveResizeWindow(server.dsp, traywin->parent, traywin->x, traywin->y, traywin->width, traywin->height);
+	XMoveResizeWindow(server.dsp, traywin->win, 0, 0, traywin->width, traywin->height);
+
+	XFlush(server.dsp);
+
+	return TRUE;
+}
 
 void remove_icon(TrayWindow *traywin)
 {
-	XErrorHandler old;
-
 	// remove from our list
 	systray.list_icons = g_slist_remove(systray.list_icons, traywin);
-	//printf("remove_icon: %d\n", traywin->tray_id);
+	printf("remove_icon: %lu\n", traywin->win);
 
-	XSelectInput(server.dsp, traywin->tray_id, NoEventMask);
+	XSelectInput(server.dsp, traywin->win, NoEventMask);
 	if (traywin->damage)
 		XDamageDestroy(server.dsp, traywin->damage);
 
 	// reparent to root
+	XSync(server.dsp, False);
 	error = FALSE;
-	old = XSetErrorHandler(window_error_handler);
+	XErrorHandler old = XSetErrorHandler(window_error_handler);
 	if (!traywin->hide)
-		XUnmapWindow(server.dsp, traywin->tray_id);
+		XUnmapWindow(server.dsp, traywin->win);
-	XReparentWindow(server.dsp, traywin->tray_id, server.root_win, 0, 0);
+	XReparentWindow(server.dsp, traywin->win, server.root_win, 0, 0);
-	XDestroyWindow(server.dsp, traywin->id);
+	XDestroyWindow(server.dsp, traywin->parent);
 	XSync(server.dsp, False);
 	XSetErrorHandler(old);
 	stop_timeout(traywin->render_timeout);
@@ -574,13 +623,14 @@ void remove_icon(TrayWindow *traywin)
 void net_message(XClientMessageEvent *e)
 {
 	unsigned long opcode;
-	Window id;
+	Window win;
 
 	opcode = e->data.l[1];
 	switch (opcode) {
 	case SYSTEM_TRAY_REQUEST_DOCK:
-			id = e->data.l[2];
+		win = e->data.l[2];
-			if (id) add_icon(id);
+		if (win)
+			add_icon(win);
 		break;
 
 	case SYSTEM_TRAY_BEGIN_MESSAGE:
@@ -597,32 +647,84 @@ void net_message(XClientMessageEvent *e)
 	}
 }
 
-void systray_render_icon_now(void* t)
+Display *display = NULL;
+XImage *tintXGetImage(Window win)
+{
+	char *display_name = XDisplayName(NULL);
+	if (!display_name)
+		return NULL;
+	if (!display)
+		display = XOpenDisplay(display_name);
+	if (!display)
+		return NULL;
+
+	unsigned int border_width;
+	int xpos, ypos;
+	unsigned int width, height, depth;
+	Window root;
+	if (!XGetGeometry(display, win, &root, &xpos, &ypos, &width, &height, &border_width, &depth)) {
+		fprintf(stderr, "Couldn't get geometry of window!\n");
+		return NULL;
+	}
+	return XGetImage(display, win, 0, 0, width, height, AllPlanes, XYPixmap);
+}
+
+void systray_render_icon_composited(void* t)
 {
 	// we end up in this function only in real transparency mode or if systray_task_asb != 100 0 0
 	// we made also sure, that we always have a 32 bit visual, i.e. we can safely create 32 bit pixmaps here
 	TrayWindow* traywin = t;
 
-	traywin->render_timeout = 0;
+	// wine tray icons update whenever mouse is over them, so we limit the updates to 50 ms
+	struct timespec now;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	struct timespec earliest_render = add_msec_to_timespec(traywin->time_last_render, 50);
+	if (compare_timespecs(&earliest_render, &now) > 0) {
+		traywin->render_timeout = add_timeout(50, 0, systray_render_icon_composited, traywin, &traywin->render_timeout);
+		return;
+	}
+	traywin->time_last_render.tv_sec = now.tv_sec;
+	traywin->time_last_render.tv_nsec = now.tv_nsec;
+
 	if ( traywin->width == 0 || traywin->height == 0 ) {
 		// reschedule rendering since the geometry information has not yet been processed (can happen on slow cpu)
-		systray_render_icon(traywin);
+		traywin->render_timeout = add_timeout(50, 0, systray_render_icon_composited, traywin, &traywin->render_timeout);
 		return;
 	}
 
+	if (traywin->render_timeout) {
+		stop_timeout(traywin->render_timeout);
+		traywin->render_timeout = NULL;
+	}
+
 	int empty = 1;
-	XImage *ximage = XGetImage(server.dsp, traywin->tray_id, 0, 0, traywin->width, traywin->height, AllPlanes, XYPixmap);
+	XImage *ximage = tintXGetImage(traywin->win);
 	if (ximage) {
+		if (ximage->width != traywin->width ||
+			ximage->height != traywin->height) {
+			XFree(ximage);
+			XCloseDisplay(display);
+			display = NULL;
+			XMoveResizeWindow(server.dsp, traywin->win, 0, 0, traywin->width, traywin->height);
+			return;
+		}
 		XColor color;
+		if (ximage->width > 0 && ximage->height > 0) {
+			color.pixel = XGetPixel(ximage, ximage->width/2, ximage->height/2);
+			if (color.pixel != 0)
+				empty = 0;
 			int x, y;
-		for (x = 0; empty && x < traywin->width; x++) {
+			for (x = 0; empty && x < ximage->width; x++) {
-			for (y = 0; empty && y < traywin->height; y++) {
+				for (y = 0; empty && y < ximage->height; y++) {
 					color.pixel = XGetPixel(ximage, x, y);
 					if (color.pixel != 0)
 						empty = 0;
 				}
 			}
+		}
 		XFree(ximage);
+		XCloseDisplay(display);
+		display = NULL;
 	}
 	if (traywin->empty != empty) {
 		traywin->empty = empty;
@@ -630,7 +732,7 @@ void systray_render_icon_now(void* t)
 		panel_refresh = 1;
 		systray.list_icons = g_slist_sort(systray.list_icons, compare_traywindows);
 	}
-	//printf("systray_render_icon_now: %d empty %d\n", traywin->tray_id, empty);
+	//printf("systray_render_icon_now: %d empty %d\n", traywin->win, empty);
 	if (empty)
 		return;
 
@@ -642,22 +744,46 @@ void systray_render_icon_now(void* t)
 	// Very ugly hack, but somehow imlib2 is not able to get the image from the traywindow itself,
 	// so we first render the tray window onto a pixmap, and then we tell imlib2 to use this pixmap as
 	// drawable. If someone knows why it does not work with the traywindow itself, please tell me ;)
-	Pixmap tmp_pmap = XCreatePixmap(server.dsp, server.root_win, traywin->width, traywin->height, 32);
+	Pixmap tmp_pmap = XCreatePixmap(server.dsp, traywin->win, traywin->width, traywin->height, 32);
-	XRenderPictFormat* f;
+	if (!tmp_pmap) {
-	if (traywin->depth == 24)
+		goto on_systray_error;
+	}
+	XRenderPictFormat *f;
+	if (traywin->depth == 24) {
 		f = XRenderFindStandardFormat(server.dsp, PictStandardRGB24);
-	else if (traywin->depth == 32)
+	} else if (traywin->depth == 32) {
 		f = XRenderFindStandardFormat(server.dsp, PictStandardARGB32);
-	else {
+	} else {
 		printf("Strange tray icon found with depth: %d\n", traywin->depth);
+		XFreePixmap(server.dsp, tmp_pmap);
 		return;
 	}
-	Picture pict_image;
+	XRenderPictFormat *f32 = XRenderFindVisualFormat(server.dsp, server.visual32);
+	if (!f || !f32) {
+		XFreePixmap(server.dsp, tmp_pmap);
+		goto on_systray_error;
+	}
+
+	XSync(server.dsp, False);
+	error = FALSE;
+	XErrorHandler old = XSetErrorHandler(window_error_handler);
+
 	//if (server.real_transparency)
-		//pict_image = XRenderCreatePicture(server.dsp, traywin->id, f, 0, 0);
+	//Picture pict_image = XRenderCreatePicture(server.dsp, traywin->parent, f, 0, 0);
 	// reverted Rev 407 because here it's breaking alls icon with systray + xcompmgr
-	pict_image = XRenderCreatePicture(server.dsp, traywin->tray_id, f, 0, 0);
+	Picture pict_image = XRenderCreatePicture(server.dsp, traywin->win, f, 0, 0);
+	if (!pict_image) {
+		XFreePixmap(server.dsp, tmp_pmap);
+		XSetErrorHandler(old);
+		goto on_error;
+	}
 	Picture pict_drawable = XRenderCreatePicture(server.dsp, tmp_pmap, XRenderFindVisualFormat(server.dsp, server.visual32), 0, 0);
+	if (!pict_drawable) {
+		XRenderFreePicture(server.dsp, pict_image);
+		XFreePixmap(server.dsp, tmp_pmap);
+		XSetErrorHandler(old);
+		goto on_error;
+	}
 	XRenderComposite(server.dsp, PictOpSrc, pict_image, None, pict_drawable, 0, 0, 0, 0, 0, 0, traywin->width, traywin->height);
 	XRenderFreePicture(server.dsp, pict_image);
 	XRenderFreePicture(server.dsp, pict_drawable);
@@ -667,8 +793,13 @@ void systray_render_icon_now(void* t)
 	imlib_context_set_colormap(server.colormap32);
 	imlib_context_set_drawable(tmp_pmap);
 	Imlib_Image image = imlib_create_image_from_drawable(0, 0, 0, traywin->width, traywin->height, 1);
-	if (image == 0)
+	if (!image) {
-		return;
+		imlib_context_set_visual(server.visual);
+		imlib_context_set_colormap(server.colormap);
+		XFreePixmap(server.dsp, tmp_pmap);
+		XSetErrorHandler(old);
+		goto on_error;
+	}
 
 	imlib_context_set_image(image);
 	//if (traywin->depth == 24)
@@ -692,21 +823,40 @@ void systray_render_icon_now(void* t)
 	if (traywin->damage)
 		XDamageSubtract(server.dsp, traywin->damage, None, None);
 	XFlush(server.dsp);
+
+	XSync(server.dsp, False);
+	XSetErrorHandler(old);
+
+	if (error)
+		goto on_error;
+
+	return;
+
+on_error:
+	printf("systray %d: rendering error for icon %lu pid %d\n", __LINE__, traywin->win, traywin->pid);
+	return;
+
+on_systray_error:
+	printf("systray %d: rendering error for icon %lu pid %d. Disabling compositing and restarting systray...\n", __LINE__, traywin->win, traywin->pid);
+	systray_composited = 0;
+	stop_net();
+	start_net();
+	return;
 }
 
 
 void systray_render_icon(TrayWindow* traywin)
 {
-	if (FORCE_COMPOSITED_RENDERING || server.real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
+	if (!reparent_icon(traywin))
-		// wine tray icons update whenever mouse is over them, so we limit the updates to 50 ms
+		return;
+
+	if (systray_composited) {
 		if (!traywin->render_timeout)
-			traywin->render_timeout = add_timeout(50, 0, systray_render_icon_now, traywin, &traywin->render_timeout);
+			systray_render_icon_composited(traywin);
-	}
+	} else {
-	else {
+		// Trigger window repaint
-		//			Pixmap pix = XCreatePixmap(server.dsp, server.root_win, traywin->width, traywin->height, server.depth);
+		XClearArea(server.dsp, traywin->parent, 0, 0, traywin->width, traywin->height, True);
-		//			XCopyArea(server.dsp, panel->temp_pmap, pix, server.gc, traywin->x, traywin->y, traywin->width, traywin->height, 0, 0);
+		XClearArea(server.dsp, traywin->win, 0, 0, traywin->width, traywin->height, True);
-		//			XSetWindowBackgroundPixmap(server.dsp, traywin->id, pix);
-		XClearArea(server.dsp, traywin->tray_id, 0, 0, traywin->width, traywin->height, True);
 	}
 }
 

src/systray/systraybar.h

@@ -35,8 +35,8 @@ typedef struct {
 
 typedef struct
 {
-	Window id;
+	Window parent;
-	Window tray_id;
+	Window win;
 	int x, y;
 	int width, height;
 	// TODO: manage icon's show/hide
@@ -47,6 +47,8 @@ typedef struct
 	int empty;
 	int pid;
 	int chrono;
+    struct timespec time_last_render;
+	int reparented;
 } TrayWindow;
 
 

src/taskbar/task.c

@@ -111,7 +111,7 @@ Task *add_task (Window win)
 		}
 		new_tsk2->icon_width = new_tsk.icon_width;
 		new_tsk2->icon_height = new_tsk.icon_height;
-		tskbar->area.list = g_slist_append(tskbar->area.list, new_tsk2);
+		tskbar->area.list = g_list_append(tskbar->area.list, new_tsk2);
 		tskbar->area.resize = 1;
 		g_ptr_array_add(task_group, new_tsk2);
 		//printf("add_task panel %d, desktop %d, task %s\n", i, j, new_tsk2->title);
@@ -169,7 +169,7 @@ void remove_task (Task *tsk)
 	for (i=0; i<task_group->len; ++i) {
 		tsk2 = g_ptr_array_index(task_group, i);
 		tskbar = tsk2->area.parent;
-		tskbar->area.list = g_slist_remove(tskbar->area.list, tsk2);
+		tskbar->area.list = g_list_remove(tskbar->area.list, tsk2);
 		tskbar->area.resize = 1;
 		if (tsk2 == task_active) task_active = 0;
 		if (tsk2 == task_drag) task_drag = 0;
@@ -424,15 +424,13 @@ Task *find_active_task(Task *current_task, Task *active_task)
 	if (active_task == NULL)
 		return current_task;
 
-	GSList *l0;
-	Task *tsk;
 	Taskbar* tskbar = current_task->area.parent;
 
-	l0 = tskbar->area.list;
+	GList *l0 = tskbar->area.list;
 	if (taskbarname_enabled)
 		l0 = l0->next;
 	for (; l0 ; l0 = l0->next) {
-		tsk = l0->data;
+		Task *tsk = l0->data;
 		if (tsk->win == active_task->win)
 			return tsk;
 	}
@@ -445,15 +443,13 @@ Task *next_task(Task *tsk)
 	if (tsk == 0)
 		return 0;
 
-	GSList *l0, *lfirst_tsk;
-	Task *tsk1;
 	Taskbar* tskbar = tsk->area.parent;
 
-	l0 = tskbar->area.list;
+	GList *l0 = tskbar->area.list;
 	if (taskbarname_enabled) l0 = l0->next;
-	lfirst_tsk = l0;
+	GList *lfirst_tsk = l0;
 	for (; l0 ; l0 = l0->next) {
-		tsk1 = l0->data;
+		Task *tsk1 = l0->data;
 		if (tsk1 == tsk) {
 			if (l0->next == 0) l0 = lfirst_tsk;
 			else l0 = l0->next;
@@ -469,19 +465,18 @@ Task *prev_task(Task *tsk)
 	if (tsk == 0)
 		return 0;
 
-	GSList *l0, *lfirst_tsk;
 	Task *tsk1, *tsk2;
 	Taskbar* tskbar = tsk->area.parent;
 
 	tsk2 = 0;
-	l0 = tskbar->area.list;
+	GList *l0 = tskbar->area.list;
 	if (taskbarname_enabled) l0 = l0->next;
-	lfirst_tsk = l0;
+	GList *lfirst_tsk = l0;
 	for (; l0 ; l0 = l0->next) {
 		tsk1 = l0->data;
 		if (tsk1 == tsk) {
 			if (l0 == lfirst_tsk) {
-				l0 = g_slist_last ( l0 );
+				l0 = g_list_last ( l0 );
 				tsk2 = l0->data;
 			}
 			return tsk2;

src/taskbar/taskbar.c

@@ -47,6 +47,7 @@ int taskbar_distribute_size;
 int hide_inactive_tasks;
 int hide_task_diff_monitor;
 int taskbar_sort_method;
+int taskbar_alignment;
 
 guint win_hash(gconstpointer key) { return (guint)*((Window*)key); }
 gboolean win_compare(gconstpointer a, gconstpointer b) { return (*((Window*)a) == *((Window*)b)); }
@@ -63,6 +64,7 @@ void default_taskbar()
 	hide_inactive_tasks = 0;
 	hide_task_diff_monitor = 0;
 	taskbar_sort_method = TASKBAR_NOSORT;
+	taskbar_alignment = ALIGN_LEFT;
 	default_taskbarname();
 }
 
@@ -97,7 +99,7 @@ void cleanup_taskbar()
 			}
 			free_area(&tskbar->area);
 			// remove taskbar from the panel
-			panel->area.list = g_slist_remove(panel->area.list, tskbar);
+			panel->area.list = g_list_remove(panel->area.list, tskbar);
 		}
 		if (panel->taskbar) {
 			free(panel->taskbar);
@@ -153,6 +155,7 @@ void init_taskbar_panel(void *p)
 	panel->g_taskbar.area.parent = panel;
 	panel->g_taskbar.area.panel = panel;
 	panel->g_taskbar.area.size_mode = SIZE_BY_LAYOUT;
+	panel->g_taskbar.area.alignment = taskbar_alignment;
 	panel->g_taskbar.area._resize = resize_taskbar;
 	panel->g_taskbar.area._draw_foreground = draw_taskbar;
 	panel->g_taskbar.area._on_change_layout = on_change_taskbar;
@@ -334,7 +337,7 @@ int resize_taskbar(void *obj)
 		resize_by_layout(obj, panel->g_task.maximum_width);
 		
 		text_width = panel->g_task.maximum_width;
-		GSList *l = taskbar->area.list;
+		GList *l = taskbar->area.list;
 		if (taskbarname_enabled) l = l->next;
 		for (; l != NULL; l = l->next) {
 			if (((Task *)l->data)->area.on_screen) {
@@ -388,7 +391,7 @@ void set_taskbar_state(Taskbar *tskbar, int state)
 		if (taskbarname_enabled && tskbar->bar_name.state_pix[state] == 0)
 			tskbar->bar_name.area.redraw = 1;
 		if (panel_mode == MULTI_DESKTOP && panel1[0].g_taskbar.background[TASKBAR_NORMAL] != panel1[0].g_taskbar.background[TASKBAR_ACTIVE]) {
-			GSList *l = tskbar->area.list;
+			GList *l = tskbar->area.list;
 			if (taskbarname_enabled) l = l->next;
 			for ( ; l ; l = l->next)
 				set_task_redraw(l->data);
@@ -511,7 +514,7 @@ int taskbar_needs_sort(Taskbar *taskbar)
 	if (taskbar_sort_method == TASKBAR_NOSORT)
 		return 0;
 
-	GSList *i, *j;
+	GList *i, *j;
 	for (i = taskbar->area.list, j = i ? i->next : NULL; i && j; i = i->next, j = j->next) {
 		if (compare_tasks(i->data, j->data, taskbar) > 0) {
 			return 1;
@@ -528,7 +531,7 @@ void sort_tasks(Taskbar *taskbar)
 	if (!taskbar_needs_sort(taskbar)) {
 		return;
 	}
-	taskbar->area.list = g_slist_sort_with_data(taskbar->area.list, (GCompareDataFunc)compare_tasks, taskbar);
+	taskbar->area.list = g_list_sort_with_data(taskbar->area.list, (GCompareDataFunc)compare_tasks, taskbar);
 	taskbar->area.resize = 1;
 	panel_refresh = 1;
 	((Panel*)taskbar->area.panel)->area.resize = 1;

src/taskbar/taskbar.h

@@ -21,6 +21,7 @@ extern int hide_inactive_tasks;
 extern int hide_task_diff_monitor;
 enum { TASKBAR_NOSORT, TASKBAR_SORT_CENTER, TASKBAR_SORT_TITLE };
 extern int taskbar_sort_method;
+extern int taskbar_alignment;
 
 typedef struct {
 	// always start with area

src/taskbar/taskbarname.c

@@ -76,7 +76,7 @@ void init_taskbarname_panel(void *p)
 			tskbar->bar_name.name = g_strdup_printf("%d", j+1);
 		
 		// append the name at the beginning of taskbar
-		tskbar->area.list = g_slist_append(tskbar->area.list, &tskbar->bar_name);
+		tskbar->area.list = g_list_append(tskbar->area.list, &tskbar->bar_name);
 	}
 
 	for (l=list ; l ; l = l->next)
@@ -103,7 +103,7 @@ void cleanup_taskbarname()
 					XFreePixmap(server.dsp, tskbar->bar_name.state_pix[k]);
 				tskbar->bar_name.state_pix[k] = 0;
 			}
-			tskbar->area.list = g_slist_remove(tskbar->area.list, &tskbar->bar_name);
+			tskbar->area.list = g_list_remove(tskbar->area.list, &tskbar->bar_name);
 		}
 	}
 

src/tint.c

@@ -117,12 +117,12 @@ void init (int argc, char *argv[])
 	// BSD does not support pselect(), therefore we have to use select and hope that we do not
 	// end up in a race condition there (see 'man select()' on a linux machine for more information)
 	// block all signals, such that no race conditions occur before pselect in our main loop
-//	sigset_t block_mask;
+	//	sigset_t block_mask;
-//	sigaddset(&block_mask, SIGINT);
+	//	sigaddset(&block_mask, SIGINT);
-//	sigaddset(&block_mask, SIGTERM);
+	//	sigaddset(&block_mask, SIGTERM);
-//	sigaddset(&block_mask, SIGHUP);
+	//	sigaddset(&block_mask, SIGHUP);
-//	sigaddset(&block_mask, SIGUSR1);
+	//	sigaddset(&block_mask, SIGUSR1);
-//	sigprocmask(SIG_BLOCK, &block_mask, 0);
+	//	sigprocmask(SIG_BLOCK, &block_mask, 0);
 }
 
 static int sn_pipe_valid = 0;
@@ -470,8 +470,8 @@ void event_button_motion_notify (XEvent *e)
 		} else {
 			// Swap the task_drag with the task on the event's location (if they differ)
 			if(event_task && event_task != task_drag) {
-				GSList * drag_iter = g_slist_find(event_taskbar->area.list, task_drag);
+				GList * drag_iter = g_list_find(event_taskbar->area.list, task_drag);
-				GSList * task_iter = g_slist_find(event_taskbar->area.list, event_task);
+				GList * task_iter = g_list_find(event_taskbar->area.list, event_task);
 				if(drag_iter && task_iter) {
 					gpointer temp = task_iter->data;
 					task_iter->data = drag_iter->data;
@@ -488,14 +488,14 @@ void event_button_motion_notify (XEvent *e)
 			return;
 
 		Taskbar * drag_taskbar = (Taskbar*)task_drag->area.parent;
-		drag_taskbar->area.list = g_slist_remove(drag_taskbar->area.list, task_drag);
+		drag_taskbar->area.list = g_list_remove(drag_taskbar->area.list, task_drag);
 
 		if(event_taskbar->area.posx > drag_taskbar->area.posx || event_taskbar->area.posy > drag_taskbar->area.posy) {
 			int i = (taskbarname_enabled) ? 1 : 0;
-			event_taskbar->area.list = g_slist_insert(event_taskbar->area.list, task_drag, i);
+			event_taskbar->area.list = g_list_insert(event_taskbar->area.list, task_drag, i);
 		}
 		else
-			event_taskbar->area.list = g_slist_append(event_taskbar->area.list, task_drag);
+			event_taskbar->area.list = g_list_append(event_taskbar->area.list, task_drag);
 
 		// Move task to other desktop (but avoid the 'Window desktop changed' code in 'event_property_notify')
 		task_drag->area.parent = event_taskbar;
@@ -677,10 +677,9 @@ void event_property_notify (XEvent *e)
 				// check ALLDESKTOP task => resize taskbar
 				Taskbar *tskbar;
 				Task *tsk;
-				GSList *l;
 				if (server.nb_desktop > old_desktop) {
 					tskbar = &panel->taskbar[old_desktop];
-					l = tskbar->area.list;
+					GList *l = tskbar->area.list;
 					if (taskbarname_enabled) l = l->next;
 					for (; l ; l = l->next) {
 						tsk = l->data;
@@ -694,7 +693,7 @@ void event_property_notify (XEvent *e)
 					}
 				}
 				tskbar = &panel->taskbar[server.desktop];
-				l = tskbar->area.list;
+				GList *l = tskbar->area.list;
 				if (taskbarname_enabled) l = l->next;
 				for (; l ; l = l->next) {
 					tsk = l->data;
@@ -831,11 +830,13 @@ void event_configure_notify (Window win)
 	GSList *l;
 	for (l = systray.list_icons; l ; l = l->next) {
 		traywin = (TrayWindow*)l->data;
-		if (traywin->tray_id == win) {
+		if (traywin->win == win) {
 			//printf("move tray %d\n", traywin->x);
-			XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, traywin->width, traywin->height);
+			XMoveResizeWindow(server.dsp, traywin->parent, traywin->x, traywin->y, traywin->width, traywin->height);
-			XResizeWindow(server.dsp, traywin->tray_id, traywin->width, traywin->height);
+			if (traywin->reparented)
+				XMoveResizeWindow(server.dsp, traywin->win, 0, 0, traywin->width, traywin->height);
 			panel_refresh = 1;
+			refresh_systray = 1;
 			return;
 		}
 	}
@@ -1126,8 +1127,8 @@ start:
 	dnd_sent_request = 0;
 	dnd_launcher_exec = 0;
 
-//	sigset_t empty_mask;
+	//	sigset_t empty_mask;
-//	sigemptyset(&empty_mask);
+	//	sigemptyset(&empty_mask);
 
 	while (1) {
 		if (panel_refresh) {
@@ -1268,7 +1269,7 @@ start:
 						if (e.xany.window == g_tooltip.window || !systray_enabled)
 							break;
 						for (it = systray.list_icons; it; it = g_slist_next(it)) {
-							if (((TrayWindow*)it->data)->tray_id == e.xany.window) {
+							if (((TrayWindow*)it->data)->win == e.xany.window) {
 								remove_icon((TrayWindow*)it->data);
 								break;
 							}
@@ -1413,7 +1414,7 @@ start:
 							XDamageNotifyEvent* de = &event_union.de;
 							for (l = systray.list_icons; l ; l = l->next) {
 								traywin = (TrayWindow*)l->data;
-								if ( traywin->id == de->drawable ) {
+								if ( traywin->parent == de->drawable ) {
 									systray_render_icon(traywin);
 									break;
 								}

src/tint2conf/properties.c

@@ -47,7 +47,7 @@ GtkWidget *taskbar_hide_inactive_tasks, *taskbar_hide_diff_monitor;
 GtkWidget *taskbar_name_padding_x, *taskbar_name_padding_y, *taskbar_name_inactive_color, *taskbar_name_active_color, *taskbar_name_font;
 GtkWidget *taskbar_active_background, *taskbar_inactive_background;
 GtkWidget *taskbar_name_active_background, *taskbar_name_inactive_background;
-GtkWidget *taskbar_distribute_size, *taskbar_sort_order;
+GtkWidget *taskbar_distribute_size, *taskbar_sort_order, *taskbar_alignment;
 
 // task
 GtkWidget *task_mouse_left, *task_mouse_middle, *task_mouse_right, *task_mouse_scroll_up, *task_mouse_scroll_down;
@@ -1263,6 +1263,11 @@ void create_panel_items(GtkWidget *parent)
 					   itemsColName, _("Launcher"),
 					   itemsColValue, "L",
 					   -1);
+	gtk_list_store_append(all_items, &iter);
+	gtk_list_store_set(all_items, &iter,
+					   itemsColName, _("Free space"),
+					   itemsColValue, "F",
+					   -1);
 
 	panel_items_view = gtk_tree_view_new();
 	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(panel_items_view),
@@ -1441,6 +1446,9 @@ void set_panel_items(const char *items)
 		} else if (v == 'L') {
 			value = "L";
 			name = _("Launcher");
+		} else if (v == 'F') {
+			value = "F";
+			name = _("Free space");
 		} else {
 			continue;
 		}
@@ -2317,6 +2325,24 @@ void create_taskbar(GtkWidget *parent)
 						 "'By title' means that tasks are sorted by their window titles. \n"
 						 "'By center' means that tasks are sorted geometrically by their window centers."), NULL);
 
+	row++;
+	col = 2;
+	label = gtk_label_new(_("Task alignment"));
+	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++;
+
+	taskbar_alignment = gtk_combo_box_new_text();
+	gtk_widget_show(taskbar_alignment);
+	gtk_table_attach(GTK_TABLE(table), taskbar_alignment, col, col+1, row, row+1, GTK_FILL, 0, 0, 0);
+	col++;
+	gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_alignment), _("Left"));
+	gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_alignment), _("Center"));
+	gtk_combo_box_append_text(GTK_COMBO_BOX(taskbar_alignment), _("Right"));
+	gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_alignment), 0);
+	gtk_tooltips_set_tip(tooltips, taskbar_alignment, _("Specifies how tasks should be positioned on the taskbar."), NULL);
+
 	change_paragraph(parent);
 
 	label = gtk_label_new(_("<b>Appearance</b>"));

src/tint2conf/properties.h

@@ -51,7 +51,7 @@ extern GtkWidget *taskbar_hide_inactive_tasks, *taskbar_hide_diff_monitor;
 extern GtkWidget *taskbar_name_padding_x, *taskbar_name_padding_y, *taskbar_name_inactive_color, *taskbar_name_active_color, *taskbar_name_font;
 extern GtkWidget *taskbar_active_background, *taskbar_inactive_background;
 extern GtkWidget *taskbar_name_active_background, *taskbar_name_inactive_background;
-extern GtkWidget *taskbar_distribute_size, *taskbar_sort_order;
+extern GtkWidget *taskbar_distribute_size, *taskbar_sort_order, *taskbar_alignment;
 
 // task
 extern GtkWidget *task_mouse_left, *task_mouse_middle, *task_mouse_right, *task_mouse_scroll_up, *task_mouse_scroll_down;

src/tint2conf/properties_rw.c

@@ -272,6 +272,16 @@ void config_write_taskbar(FILE *fp)
 	}
 	fprintf(fp, "\n");
 
+	fprintf(fp, "task_align = ");
+	if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_alignment)) <= 0) {
+		fprintf(fp, "left");
+	} else if (gtk_combo_box_get_active(GTK_COMBO_BOX(taskbar_alignment)) == 1) {
+		fprintf(fp, "center");
+	} else {
+		fprintf(fp, "right");
+	}
+	fprintf(fp, "\n");
+
 	fprintf(fp, "\n");
 }
 
@@ -998,6 +1008,16 @@ void add_entry(char *key, char *value)
 		else
 			gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 0);
 	}
+	else if (strcmp(key, "task_align") == 0) {
+		if (strcmp(value, "left") == 0)
+			gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 0);
+		else if (strcmp(value, "center") == 0)
+			gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 1);
+		else if (strcmp(value, "right") == 0)
+			gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 2);
+		else
+			gtk_combo_box_set_active(GTK_COMBO_BOX(taskbar_sort_order), 0);
+	}
 	else if (strcmp(key, "taskbar_padding") == 0) {
 		extract_values(value, &value1, &value2, &value3);
 		gtk_spin_button_set_value(GTK_SPIN_BUTTON(taskbar_padding_x), atoi(value1));

src/tint2conf/tint2conf.desktop

@@ -33,7 +33,7 @@ Name[nb]=Panelbehandler
 Name[nl]=Paneel Manager
 Name[nn]=Panelhandsamar
 Name[pa]=ਪੈਨਲ ਮੈਨੇਜਰ
-Name[pl]=Panel
+Name[pl]=Ustawienia panelu
 Name[pt]=Gestor do Painel
 Name[pt_BR]=Gerenciador do painel
 Name[ro]=Manager de panouri

src/util/area.c

@@ -76,7 +76,7 @@ void init_rendering(void *obj, int pos)
 	Area *a = (Area*)obj;
 	
 	// initialize fixed position/size
-	GSList *l;
+	GList *l;
 	for (l = a->list; l ; l = l->next) {
 		Area *child = ((Area*)l->data);
 		if (panel_horizontal) {
@@ -102,7 +102,7 @@ void rendering(void *obj)
 	Panel *panel = (Panel*)obj;
 
 	size_by_content(&panel->area);
-	size_by_layout(&panel->area, 0, 1);
+	size_by_layout(&panel->area, 1);
 	
 	refresh(&panel->area);
 }
@@ -111,10 +111,11 @@ void rendering(void *obj)
 void size_by_content (Area *a)
 {
 	// don't resize hiden objects
-	if (!a->on_screen) return;
+	if (!a->on_screen)
+		return;
 
 	// children node are resized before its parent
-	GSList *l;
+	GList *l;
 	for (l = a->list; l ; l = l->next)
 		size_by_content(l->data);
 	
@@ -134,14 +135,15 @@ void size_by_content (Area *a)
 }
 
 
-void size_by_layout (Area *a, int pos, int level)
+void size_by_layout (Area *a, int level)
 {
 	// don't resize hiden objects
-	if (!a->on_screen) return;
+	if (!a->on_screen)
+		return;
 
 	// parent node is resized before its children
 	// calculate area's size
-	GSList *l;
+	GList *l;
 	if (a->resize && a->size_mode == SIZE_BY_LAYOUT) {
 		a->resize = 0;
 
@@ -156,13 +158,15 @@ void size_by_layout (Area *a, int pos, int level)
 		}
 	}
 
-	// update position of childs
+	// update position of children
-	pos += a->paddingxlr + a->bg->border.width;
+	if (a->list) {
-	int i=0;
+		if (a->alignment == ALIGN_LEFT) {
+			int pos = (panel_horizontal ? a->posx : a->posy) + a->bg->border.width + a->paddingxlr;
+
 			for (l = a->list; l ; l = l->next) {
 				Area *child = ((Area*)l->data);
-		if (!child->on_screen) continue;
+				if (!child->on_screen)
-		i++;
+					continue;
 
 				if (panel_horizontal) {
 					if (pos != child->posx) {
@@ -170,8 +174,7 @@ void size_by_layout (Area *a, int pos, int level)
 						child->posx = pos;
 						child->on_changed = 1;
 					}
-		}
+				} else {
-		else {
 					if (pos != child->posy) {
 						// pos changed => redraw
 						child->posy = pos;
@@ -179,16 +182,78 @@ void size_by_layout (Area *a, int pos, int level)
 					}
 				}
 
-		/*// position of each visible object
+				size_by_layout(child, level+1);
-		int k;
-		for (k=0 ; k < level ; k++) printf("  ");
-		printf("tree level %d, object %d, pos %d, %s\n", level, i, pos, (child->size_mode == SIZE_BY_LAYOUT) ? "SIZE_BY_LAYOUT" : "SIZE_BY_CONTENT");*/
-		size_by_layout(child, pos, level+1);
 
-		if (panel_horizontal)
+				pos += panel_horizontal ? child->width + a->paddingx : child->height + a->paddingx;
-			pos += child->width + a->paddingx;
+			}
-		else
+		} else if (a->alignment == ALIGN_RIGHT) {
-			pos += child->height + a->paddingx;
+			int pos = (panel_horizontal ? a->posx + a->width : a->posy + a->height) - a->bg->border.width - a->paddingxlr;
+
+			for (l = g_list_last(a->list); l ; l = l->prev) {
+				Area *child = ((Area*)l->data);
+				if (!child->on_screen)
+					continue;
+
+				pos -= panel_horizontal ? child->width : child->height;
+
+				if (panel_horizontal) {
+					if (pos != child->posx) {
+						// pos changed => redraw
+						child->posx = pos;
+						child->on_changed = 1;
+					}
+				} else {
+					if (pos != child->posy) {
+						// pos changed => redraw
+						child->posy = pos;
+						child->on_changed = 1;
+					}
+				}
+
+				size_by_layout(child, level+1);
+
+				pos -= a->paddingx;
+			}
+		} else if (a->alignment == ALIGN_CENTER) {
+
+			int children_size = 0;
+
+			for (l = a->list; l ; l = l->next) {
+				Area *child = ((Area*)l->data);
+				if (!child->on_screen)
+					continue;
+
+				children_size += panel_horizontal ? child->width : child->height;
+				children_size += (l == a->list) ? 0 : a->paddingx;
+			}
+
+			int pos = (panel_horizontal ? a->posx : a->posy) + a->bg->border.width + a->paddingxlr;
+			pos += ((panel_horizontal ? a->width : a->height) - children_size) / 2;
+
+			for (l = a->list; l ; l = l->next) {
+				Area *child = ((Area*)l->data);
+				if (!child->on_screen)
+					continue;
+
+				if (panel_horizontal) {
+					if (pos != child->posx) {
+						// pos changed => redraw
+						child->posx = pos;
+						child->on_changed = 1;
+					}
+				} else {
+					if (pos != child->posy) {
+						// pos changed => redraw
+						child->posy = pos;
+						child->on_changed = 1;
+					}
+				}
+
+				size_by_layout(child, level+1);
+
+				pos += panel_horizontal ? child->width + a->paddingx : child->height + a->paddingx;
+			}
+		}
 	}
 
 	if (a->on_changed) {
@@ -209,7 +274,7 @@ void refresh (Area *a)
 	if (a->redraw) {
 		a->redraw = 0;
 		// force redraw of child
-		//GSList *l;
+		//GList *l;
 		//for (l = a->list ; l ; l = l->next)
 			//((Area*)l->data)->redraw = 1;
 
@@ -222,7 +287,7 @@ void refresh (Area *a)
 	XCopyArea (server.dsp, a->pix, ((Panel *)a->panel)->temp_pmap, server.gc, 0, 0, a->width, a->height, a->posx, a->posy);
 
 	// and then refresh child object
-	GSList *l;
+	GList *l;
 	for (l = a->list; l ; l = l->next)
 		refresh(l->data);
 }
@@ -236,7 +301,7 @@ int resize_by_layout(void *obj, int maximum_size)
 	if (panel_horizontal) {		
 		// detect free size for SIZE_BY_LAYOUT's Area
 		size = a->width - (2 * (a->paddingxlr + a->bg->border.width));
-		GSList *l;
+		GList *l;
 		for (l = a->list ; l ; l = l->next) {
 			child = (Area*)l->data;
 			if (child->on_screen && child->size_mode == SIZE_BY_CONTENT) {
@@ -278,7 +343,7 @@ int resize_by_layout(void *obj, int maximum_size)
 	else {
 		// detect free size for SIZE_BY_LAYOUT's Area
 		size = a->height - (2 * (a->paddingxlr + a->bg->border.width));
-		GSList *l;
+		GList *l;
 		for (l = a->list ; l ; l = l->next) {
 			child = (Area*)l->data;
 			if (child->on_screen && child->size_mode == SIZE_BY_CONTENT) {
@@ -291,7 +356,7 @@ int resize_by_layout(void *obj, int maximum_size)
 		if (nb_by_content+nb_by_layout)
 			size -= ((nb_by_content+nb_by_layout-1) * a->paddingx);
 
-		int height=0, modulo=0, old_height;
+		int height=0, modulo=0;
 		if (nb_by_layout) {
 			height = size / nb_by_layout;
 			modulo = size % nb_by_layout;
@@ -305,7 +370,7 @@ int resize_by_layout(void *obj, int maximum_size)
 		for (l = a->list ; l ; l = l->next) {
 			child = (Area*)l->data;
 			if (child->on_screen && child->size_mode == SIZE_BY_LAYOUT) {
-				old_height = child->height;
+				int old_height = child->height;
 				child->height = height;
 				if (modulo) {
 					child->height++;
@@ -324,7 +389,7 @@ void set_redraw (Area *a)
 {
 	a->redraw = 1;
 
-	GSList *l;
+	GList *l;
 	for (l = a->list ; l ; l = l->next)
 		set_redraw(l->data);
 }
@@ -438,7 +503,7 @@ void remove_area (Area *a)
 {
 	Area *parent = (Area*)a->parent;
 
-	parent->list = g_slist_remove(parent->list, a);
+	parent->list = g_list_remove(parent->list, a);
 	set_redraw (parent);
 
 }
@@ -448,7 +513,7 @@ void add_area (Area *a)
 {
 	Area *parent = (Area*)a->parent;
 
-	parent->list = g_slist_append(parent->list, a);
+	parent->list = g_list_append(parent->list, a);
 	set_redraw (parent);
 
 }
@@ -459,12 +524,12 @@ void free_area (Area *a)
 	if (!a)
 		return;
 
-	GSList *l0;
+	GList *l0;
 	for (l0 = a->list; l0 ; l0 = l0->next)
 		free_area (l0->data);
 
 	if (a->list) {
-		g_slist_free(a->list);
+		g_list_free(a->list);
 		a->list = 0;
 	}
 	if (a->pix) {

src/util/area.h

@@ -51,6 +51,7 @@ typedef struct
 // SIZE_BY_LAYOUT objects : taskbar and task
 // SIZE_BY_CONTENT objects : clock, battery, launcher, systray
 enum { SIZE_BY_LAYOUT, SIZE_BY_CONTENT };
+enum { ALIGN_LEFT = 0, ALIGN_CENTER = 1, ALIGN_RIGHT = 2 };
 
 typedef struct {
 	// coordinate relative to panel window
@@ -61,13 +62,15 @@ typedef struct {
 	Background *bg;
 
 	// list of child : Area object
-	GSList *list;
+	GList *list;
 
 	// object visible on screen. 
 	// An object (like systray) could be enabled but hidden (because no tray icon).
 	int on_screen;
 	// way to calculate the size (SIZE_BY_CONTENT or SIZE_BY_LAYOUT)
 	int size_mode;
+
+	int alignment;
 	// need to calculate position and width
 	int resize;
 	// need redraw Pixmap
@@ -96,7 +99,7 @@ void init_rendering(void *obj, int pos);
 
 void rendering(void *obj);
 void size_by_content (Area *a);
-void size_by_layout (Area *a, int pos, int level);
+void size_by_layout (Area *a, int level);
 // draw background and foreground
 void refresh (Area *a);
  

src/util/timer.c

@@ -49,9 +49,7 @@ struct _timeout {
 
 void add_timeout_intern(int value_msec, int interval_msec, void(*_callback)(void*), void* arg, timeout* t);
 gint compare_timeouts(gconstpointer t1, gconstpointer t2);
-gint compare_timespecs(const struct timespec* t1, const struct timespec* t2);
 int timespec_subtract(struct timespec* result, struct timespec* x, struct timespec* y);
-struct timespec add_msec_to_timespec(struct timespec ts, int msec);
 
 
 int align_with_existing_timeouts(timeout* t);

src/util/timer.h

@@ -20,6 +20,8 @@
 #define TIMER_H
 
 #include <glib.h>
+#include <time.h>
+#include <sys/time.h>
 
 extern struct timeval next_timeout;
 
@@ -66,4 +68,9 @@ void update_next_timeout();
 /** Callback of all expired timeouts **/
 void callback_timeout_expired();
 
+/** Returns -1 if t1 < t2, 0 if t1 == t2, 1 if t1 > t2 **/
+gint compare_timespecs(const struct timespec* t1, const struct timespec* t2);
+
+struct timespec add_msec_to_timespec(struct timespec ts, int msec);
+
 #endif // TIMER_H

tint2.desktop

@@ -54,6 +54,7 @@ Name[zh_CN]=面板 tint2
 Name[zh_TW]=面板 tint2
 Comment=Lightweight panel
 Comment[fr_FR]=Panel léger
+Comment[pl]=Lekki panel
 Exec=tint2
 Icon=taskbar
 Terminal=false