[Xfce4-commits] <xfce4-taskmanager:master> Initial commit of new interface

Mike Massonnet noreply at xfce.org
Wed May 5 09:08:02 CEST 2010


Updating branch refs/heads/master
         to cc6dbd8373a5309f7136c72cd8a28e067dc2f1c2 (commit)
       from 32068500afc0e6773783001b9b62584e136e5abd (commit)

commit cc6dbd8373a5309f7136c72cd8a28e067dc2f1c2
Author: Mike Massonnet <mmassonnet at xfce.org>
Date:   Wed Apr 28 17:40:54 2010 +0200

    Initial commit of new interface
    
    Changes touching the build:
    - Bumped version to 0.5.0.
    - Removed dependency on Xfce libs (it only depends on GTK+-2.0.)
    - Updated Makefile with new source files.
    - Build ChangeLog through a script (remove it from source tree.)
    
    More generally speaking, the interface is build on top of a GtkBuilder
    UI definition, with a personal GtkTreeView and a Settings GObject to
    update the information shown on the interface on changes. All the code
    is being written with GObjects which will make it a lot easier to
    separate GUI code and system code.

 ChangeLog                          |  142 ------------
 Makefile.am                        |   10 +-
 configure.in.in => configure.ac.in |   10 +-
 src/Makefile.am                    |   43 ++---
 src/main.c                         |   46 +---
 src/menu-positions.c               |   37 ---
 src/menu-positions.h               |   35 ---
 src/process-tree-view.c            |  248 ++++++++++++++++++++
 src/process-tree-view.h            |   31 +++
 src/process-window.c               |  445 ++++++++++++++++++++++++++++++++++++
 src/process-window.h               |   34 +++
 src/process-window.ui              |  147 ++++++++++++
 src/settings.c                     |  311 +++++++++++++++++++++++++
 src/settings.h                     |   31 +++
 14 files changed, 1280 insertions(+), 290 deletions(-)

diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index 3bdf00b..0000000
--- a/ChangeLog
+++ /dev/null
@@ -1,142 +0,0 @@
-2009-09-11	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Small factorize on cmdline reading.
-
-2009-09-09	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Show command line arguments in Linux.
-
-2009-09-08	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Update Solaris patch from Peter Tribble.
-	* Check for the lib kstat in the autoconf script.
-	* Build with the correct file for Solaris in the automake script.
-	* Fixed the xfce_err messages and switched to g_snprintf for the
-	  command strings.
-	* Updated the TODO file.
-
-2009-09-03	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Add support for Solaris from Peter Tribble
-
-2008-09-21	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Fix build for libtool 2.2 (or at least for ArchLinux)
-
-2008-09-15	Mike Massonnet <mmassonnet at xfce.org>
-
-=== Release 0.4.1 ===
-
-2008-08-08	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Refresh deprecated GtkTooltips against new GtkTooltip code
-	* Rework the border size between the GtkBox's
-
-2008-08-03	Mike Massonnet <mmassonnet at xfce.org>
-
-	* New function to get the full and short cmdline (Linux)
-	* Fix compare functions (now works with floats and insensitive text)
-	* Fix cast which makes the CPU usage per process worky for multi-cores
-
-2008-08-02	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Display memory less than 1 MB with two decimals like 0.00 MB
-	* Quick clean up
-	* Update TODO
-
-2008-07-31	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Apply patch for BSD support from Landry Breuil
-
-2008-05-11	Mike Massonnet <mmassonnet at xfce.org>
-
-=== Release 0.4.0 ===
-
-2008-05-11	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Set window icon to "xfce-system" and modify the about dialog
-
-2008-05-10	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Redo what is displayed in More info (PPID, STATE, VM-size), and keep RSS
-	  in normal info
-
-2008-05-10	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Set buffer_status to 1024 (fixes issues with 64bit archs) bug#4059
-	* Use convenience macro GINT_TO_POINTER to pass to user_data
-
-2008-05-09	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Properly refresh the CPU usage of a process
-	* Properly display the memory usage and fix signal connected on the
-	  show_cached_as_free menu item
-
-2008-05-09	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Save sort column/type in config
-	* Set command column to expand and ellipsize
-	* Right align numerical columns
-
-2008-05-09	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Fix the event of the main menu to display on keyboard and mouse
-	* Properly position the main menu
-	* Properly save window size on quit
-
-2008-05-09	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Fix strings
-
-2008-05-08	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Properly refresh processes on CPU usage
-	* Correctly display the memory size of the processes
-
-2008-05-05	Mike Massonnet <mmassonnet at xfce.org>
-
-	* Delete automated files
-	* Remove useless gettext() and properly align menu items on the right
-
-2008-02-10	Johannes Zellner <webmaster at nebulon.de>
-
-	* Initial priority setting
-	* Few bug fixes
-
-2007-01-12	Nick Schermer <nick at xfce.org>
-
-	* Change version number and svn revision support in configure.in.in
-
-2007-01-12	Nick Schermer <nick at xfce.org>
-
-	* Apply patch from Álvaro Lopes to fix CPU usage per task, with
-	  more then 1 CPU.
-	* Added a THANKS file.
-	* Remove some svn executable properties and add svn keywords.
-	* Added LINGUAS support and removed the configure.ac > configure.in.in file.
-	* Improved the configure.in.in and Makefiles.
-
-2007-01-12	Nick Schermer <nick at xfce.org>
-
-	* Apply patch from bug 2714.
-	* Fix all typo and compiler warnings.
-
-2006-06-26	Johannes Zellner <webmaster at nebulon.de>
-
-	* rewrite of the taskmanager ;)
-	* now using seperate files for each os to get the processinfos
-	
-2005-07-05	Johannes Zellner <webmaster at nebulon.de>
-
-	* added finnish translation
-	* fixed a memory leak in functions.c
-	
-2005-06-30	Johannes Zellner <webmaster at nebulon.de>
-
-	* bugfix in the sorting function
-	* name of about-dialog changed
-	* scrollbars only showed when needed
-	
-2005-06-30 	Johannes Zellner <webmaster at nebulon.de>
-
-	* started completly new ;)
diff --git a/Makefile.am b/Makefile.am
index c7890e7..4a3c2d6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,3 @@
-# $Id$
-
 SUBDIRS =								\
 	po								\
 	src
@@ -9,12 +7,8 @@ desktop_in_files = xfce4-taskmanager.desktop.in
 desktop_DATA = $(desktop_in_files:.desktop.in=.desktop)
 @INTLTOOL_DESKTOP_RULE@
 
-distclean-local:
-	rm -rf *.cache *~
-
-rpm: dist
-	rpmbuild -ta $(PACKAGE)-$(VERSION).tar.gz
-	@rm -f $(PACKAGE)-$(VERSION).tar.gz
+ChangeLog:
+	ChangeLog-git.sh > $(srcdir)/ChangeLog || touch $(srcdir)/ChangeLog
 
 EXTRA_DIST =								\
 	intltool-extract.in						\
diff --git a/configure.in.in b/configure.ac.in
similarity index 92%
rename from configure.in.in
rename to configure.ac.in
index 35e16cd..c8013a1 100644
--- a/configure.in.in
+++ b/configure.ac.in
@@ -7,8 +7,8 @@ dnl ***************************
 dnl *** Version information ***
 dnl ***************************
 m4_define([taskmanager_version_major], [0])
-m4_define([taskmanager_version_minor], [4])
-m4_define([taskmanager_version_micro], [1])
+m4_define([taskmanager_version_minor], [5])
+m4_define([taskmanager_version_micro], [0])
 m4_define([taskmanager_version_build], [@REVISION@])
 m4_define([taskmanager_version_tag], [git])
 m4_define([taskmanager_version], [taskmanager_version_major().taskmanager_version_minor().taskmanager_version_micro()ifelse(taskmanager_version_tag(), [git], [taskmanager_version_tag()-taskmanager_version_build()], [taskmanager_version_tag()])])
@@ -30,6 +30,7 @@ dnl ***************************
 AM_INIT_AUTOMAKE([1.8 dist-bzip2])
 AM_CONFIG_HEADER([config.h])
 AM_MAINTAINER_MODE()
+AM_SILENT_RULES([yes])
 
 dnl *******************************
 dnl *** Check for UNIX variants ***
@@ -42,6 +43,7 @@ dnl ********************************
 dnl *** Check for basic programs ***
 dnl ********************************
 AC_PROG_CC()
+AM_PROG_CC_C_O()
 AC_PROG_LD()
 AC_PROG_INSTALL()
 AC_PROG_LIBTOOL()
@@ -68,9 +70,7 @@ XDT_I18N([@LINGUAS@])
 dnl ***********************************
 dnl *** Check for required packages ***
 dnl ***********************************
-XDT_CHECK_PACKAGE([LIBXFCEGUI4], [libxfcegui4-1.0], [4.4.0])
-XDT_CHECK_PACKAGE([LIBXFCE4UTIL], [libxfce4util-1.0], [4.4.0])
-XDT_CHECK_PACKAGE([GTK], [gtk+-2.0], [2.2.0])
+XDT_CHECK_PACKAGE([GTK], [gtk+-2.0], [2.12.0])
 
 dnl ***********************************
 dnl ******* Check for OS family *******
diff --git a/src/Makefile.am b/src/Makefile.am
index a1fc0b4..854536f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,3 +1,5 @@
+NULL = 
+
 INCLUDES =								\
 	-I$(top_srcdir)/include						\
 	-DG_LOG_DOMAIN=\"xfce4-taskmanager\"				\
@@ -6,37 +8,22 @@ INCLUDES =								\
 bin_PROGRAMS =								\
 	xfce4-taskmanager
 
-xfce4_taskmanager_SOURCES =						\
-	main.c								\
-	callbacks.c							\
-	callbacks.h							\
-	menu-positions.c						\
-	menu-positions.h						\
-	functions.c							\
-	functions.h							\
-	interface.c							\
-	interface.h							\
-	taskmanager.h							\
-	types.h
-
-if OS_BSD_FAMILY
-xfce4_taskmanager_SOURCES += taskmanager-bsd.c
-endif
-if OS_SOLARIS
-xfce4_taskmanager_SOURCES += taskmanager-solaris.c
-endif
-if OS_LINUX
-xfce4_taskmanager_SOURCES += taskmanager-linux.c
-endif
-
 xfce4_taskmanager_CFLAGS =						\
-	$(LIBXFCEGUI4_CFLAGS)						\
-	$(LIBXFCE4UTIL_CFLAGS)						\
 	$(GTK_CFLAGS)
 	
 xfce4_taskmanager_LDADD = 						\
-	$(LIBXFCEGUI4_LIBS)						\
-	$(LIBXFCE4UTIL_LIBS)						\
 	$(GTK_LIBS)
 
-# vi:set ts=8 sw=8 noet ai nocindent syntax=automake:
+xfce4_taskmanager_SOURCES =						\
+	main.c								\
+	process-window.c		process-window.h		\
+	process-tree-view.c		process-tree-view.h		\
+	settings.c			settings.h			\
+	$(NULL)
+
+if MAINTAINER_MODE
+BUILT_SOURCES = process-window_ui.h
+process-window_ui.h: process-window.ui
+	$(AM_V_GEN) exo-csource --static --strip-comments --strip-content --name=process_window_ui $< >$@
+endif
+
diff --git a/src/main.c b/src/main.c
index 4d40ed4..7f86fc6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,38 +1,24 @@
-/* $Id$
- *
- * Copyright (c) 2006 Johannes Zellner, <webmaster at nebulon.de>
+/*
+ * Copyright (c) 2005-2006 Johannes Zellner, <webmaster at nebulon.de>
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- *
- * 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
 #ifdef HAVE_CONFIG_H
-#  include <config.h>
+#include <config.h>
 #endif
 
 #include <gtk/gtk.h>
-#include <glib.h>
-#include <signal.h>
 
-#include <libxfce4util/libxfce4util.h>
-
-#include "types.h"
-#include "interface.h"
-#include "functions.h"
+#include "process-window.h"
 
 int main (int argc, char *argv[])
 {
+	GtkWidget *window;
 
 #ifdef ENABLE_NLS
 	bindtextdomain (GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR);
@@ -40,27 +26,17 @@ int main (int argc, char *argv[])
 	textdomain (GETTEXT_PACKAGE);
 #endif
 
-	gtk_set_locale ();
 	gtk_init (&argc, &argv);
 
-	own_uid = getuid();
-
-	config_file = xfce_resource_save_location(XFCE_RESOURCE_CONFIG, "xfce4-taskmanager.rc", FALSE);
-	load_config();
+	window = xtm_process_window_new ();
+	gtk_widget_show (window);
 
-	task_array = g_array_new (FALSE, FALSE, sizeof (struct task));
-	tasks = 0;
-
-	main_window = create_main_window ();
-	gtk_widget_show (main_window);
-
-	if(!refresh_task_list())
-		return 0;
-
-	g_timeout_add(REFRESH_INTERVAL, (gpointer) refresh_task_list, NULL);
+	g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
 
 	gtk_main ();
 
+	g_object_unref (window);
+
 	return 0;
 }
 
diff --git a/src/menu-positions.c b/src/menu-positions.c
deleted file mode 100644
index 16ae4e8..0000000
--- a/src/menu-positions.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- *  xfce4-taskmanager - very simple taskmanager
- *
- *  Copyright (c) 2008  Mike Massonnet <mmassonnet at xfce.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  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 Library  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include "menu-positions.h"
-
-void position_menu_cover_widget(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, GtkWidget *widget)
-{
-	GtkRequisition requisition;
-
-	gdk_window_get_origin(widget->window, x, y);
-	*x += widget->allocation.x;
-	*y += widget->allocation.y;
-
-	gtk_widget_size_request(GTK_WIDGET(menu), &requisition);
-	if(*y + requisition.height > gdk_screen_height())
-		*y = gdk_screen_height() - requisition.height;
-	else if(*y < 0)
-		*y = 0;
-}
-
diff --git a/src/menu-positions.h b/src/menu-positions.h
deleted file mode 100644
index 5f8019a..0000000
--- a/src/menu-positions.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- *  xfce4-taskmanager - very simple taskmanger
- *
- *  Copyright (c) 2008 	Mike Massonnet <mmassonnet at xfce.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#ifndef __MENU_POSITIONS_H_
-#define __MENU_POSITIONS_H_
-
-#ifdef HAVE_CONFIG_H
-#  include <config.h>
-#endif
-
-#include <gtk/gtk.h>
-
-#include "functions.h"
-#include "interface.h"
-
-void position_menu_cover_widget(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, GtkWidget *widget);
-
-#endif
diff --git a/src/process-tree-view.c b/src/process-tree-view.c
new file mode 100644
index 0000000..e649f58
--- /dev/null
+++ b/src/process-tree-view.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib-object.h>
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include "process-tree-view.h"
+#include "settings.h"
+
+
+
+typedef struct _XtmProcessTreeViewClass XtmProcessTreeViewClass;
+struct _XtmProcessTreeViewClass
+{
+	GtkTreeViewClass	parent_class;
+};
+struct _XtmProcessTreeView
+{
+	GtkTreeView		parent;
+	/*<private>*/
+	GtkListStore *		model;
+	XtmSettings *		settings;
+};
+G_DEFINE_TYPE (XtmProcessTreeView, xtm_process_tree_view, GTK_TYPE_TREE_VIEW)
+
+enum
+{
+	COLUMN_COMMAND,
+	COLUMN_PID,
+	COLUMN_PPID,
+	COLUMN_STATE,
+	COLUMN_VSZ,
+	COLUMN_RSS,
+	COLUMN_UID,
+	COLUMN_CPU,
+	COLUMN_PRIORITY,
+	N_COLUMNS,
+};
+
+static gboolean	treeview_clicked				(XtmProcessTreeView *treeview, GdkEventButton *event);
+static void	settings_changed				(GObject *object, GParamSpec *pspec, XtmProcessTreeView *treeview);
+static int	sort_by_string					(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer user_data);
+
+
+
+static void
+xtm_process_tree_view_class_init (XtmProcessTreeViewClass *klass)
+{
+	GObjectClass *class = G_OBJECT_CLASS (klass);
+	xtm_process_tree_view_parent_class = g_type_class_peek_parent (klass);
+}
+
+static void
+xtm_process_tree_view_init (XtmProcessTreeView *treeview)
+{
+	GtkCellRenderer *cell_text, *cell_right_aligned, *cell_cmdline;
+	GtkTreeViewColumn *column;
+	gboolean visible;
+	guint sort_column_id;
+	GtkSortType sort_type;
+
+	treeview->settings = xtm_settings_get_default ();
+	g_object_get (treeview->settings, "sort-column-id", &sort_column_id, "sort-type", &sort_type, NULL);
+	g_signal_connect (treeview->settings, "notify", G_CALLBACK (settings_changed), treeview);
+
+	treeview->model = gtk_list_store_new (9, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
+		G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
+
+	g_object_set (treeview, "search-column", COLUMN_COMMAND, "model", treeview->model, NULL);
+
+	cell_text = gtk_cell_renderer_text_new();
+
+	cell_right_aligned = gtk_cell_renderer_text_new ();
+	g_object_set (cell_right_aligned, "xalign", 1.0, NULL);
+
+	cell_cmdline = gtk_cell_renderer_text_new ();
+	g_object_set (cell_cmdline, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
+
+	column = gtk_tree_view_column_new_with_attributes (_("Task"), cell_cmdline, "text", COLUMN_COMMAND, NULL);
+	g_object_set (column, "expand", TRUE, "reorderable", FALSE, "resizable", TRUE, "visible", TRUE, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_COMMAND);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-pid", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("PID"), cell_right_aligned, "text", COLUMN_PID, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_PID);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-ppid", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("PPID"), cell_right_aligned, "text", COLUMN_PPID, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_PPID);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-state", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("State"), cell_text, "text", COLUMN_STATE, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_STATE);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-vsz", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("VSZ"), cell_right_aligned, "text", COLUMN_VSZ, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_VSZ);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-rss", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("RSS"), cell_right_aligned, "text", COLUMN_RSS, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_RSS);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-uid", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("UID"), cell_text, "text", COLUMN_UID, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_UID);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-cpu", &visible, NULL);
+	column = gtk_tree_view_column_new_with_attributes (_("CPU"), cell_right_aligned, "text", COLUMN_CPU, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_CPU);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	g_object_get (treeview->settings, "column-priority", &visible, NULL);
+	/* TRANSLATORS: “Prio.” is short for Priority, it appears in the tree view header. */
+	column = gtk_tree_view_column_new_with_attributes (_("Prio."), cell_right_aligned, "text", COLUMN_PRIORITY, NULL);
+	g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
+	gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), COLUMN_PRIORITY);
+	gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+	gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (treeview->model), sort_by_string, NULL, NULL);
+	gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (treeview->model), sort_column_id, sort_type);
+
+	g_signal_connect (treeview, "button-press-event", G_CALLBACK (treeview_clicked), NULL);
+}
+
+/**
+ * Helper functions
+ */
+
+static gboolean
+treeview_clicked (XtmProcessTreeView *treeview, GdkEventButton *event)
+{
+	if (event->button != 3)
+		return FALSE;
+
+	g_debug ("popup menu");
+
+	return TRUE;
+}
+
+static void
+settings_changed (GObject *object, GParamSpec *pspec, XtmProcessTreeView *treeview)
+{
+	if (g_strstr_len (pspec->name, -1, "column-") != NULL)
+	{
+		gboolean visible;
+		gushort column_id;
+
+		if (!g_strcmp0 (pspec->name, "column-uid"))
+			column_id = COLUMN_UID;
+		else if (!g_strcmp0 (pspec->name, "column-pid"))
+			column_id = COLUMN_PID;
+		else if (!g_strcmp0 (pspec->name, "column-ppid"))
+			column_id = COLUMN_PPID;
+		else if (!g_strcmp0 (pspec->name, "column-state"))
+			column_id = COLUMN_STATE;
+		else if (!g_strcmp0 (pspec->name, "column-vsz"))
+			column_id = COLUMN_VSZ;
+		else if (!g_strcmp0 (pspec->name, "column-rss"))
+			column_id = COLUMN_RSS;
+		else if (!g_strcmp0 (pspec->name, "column-cpu"))
+			column_id = COLUMN_CPU;
+		else if (!g_strcmp0 (pspec->name, "column-priority"))
+			column_id = COLUMN_PRIORITY;
+
+		g_object_get (object, pspec->name, &visible, NULL);
+		gtk_tree_view_column_set_visible (gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), column_id), visible);
+	}
+	else if (!g_strcmp0 (pspec->name, "show-system-processes"))
+	{
+		gboolean visible;
+		g_object_get (object, pspec->name, &visible, NULL);
+		// TODO show/hide system processes from treeview
+	}
+}
+
+static int
+sort_by_string (GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer user_data)
+{
+	gint sort_column_id;
+	GtkSortType order;
+	gchar *str1 = NULL, *str2 = NULL;
+	gchar *cstr1 = NULL, *cstr2 = NULL;
+	gint ret = 0;
+
+	g_debug (__func__);
+
+	if (!gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model), &sort_column_id, &order))
+	{
+		g_debug ("sort column default or unsorted: %d", sort_column_id);
+		return ret;
+	}
+
+	gtk_tree_model_get(model, a, sort_column_id, &str1, -1);
+	gtk_tree_model_get(model, b, sort_column_id, &str2, -1);
+
+	cstr1 = g_utf8_collate_key_for_filename (str1, -1);
+	cstr2 = g_utf8_collate_key_for_filename (str2, -1);
+
+	if (cstr1 != NULL && cstr2 != NULL)
+	{
+		ret = g_utf8_collate (cstr1, cstr2);
+	}
+	else if ((cstr1 == NULL && cstr2 != NULL) || (cstr1 != NULL && cstr2 == NULL))
+	{
+		ret = (cstr1 == NULL) ? -1 : 1;
+	}
+
+	g_free (str1);
+	g_free (str2);
+	g_free (cstr1);
+	g_free (cstr2);
+
+	return ret;
+}
+
+
+
+GtkWidget *
+xtm_process_tree_view_new ()
+{
+	return g_object_new (XTM_TYPE_PROCESS_TREE_VIEW, NULL);
+}
+
diff --git a/src/process-tree-view.h b/src/process-tree-view.h
new file mode 100644
index 0000000..71db963
--- /dev/null
+++ b/src/process-tree-view.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef PROCESS_TREE_VIEW_H
+#define PROCESS_TREE_VIEW_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib-object.h>
+
+#define XTM_TYPE_PROCESS_TREE_VIEW		(xtm_process_tree_view_get_type ())
+#define XTM_PROCESS_TREE_VIEW(obj)		(G_TYPE_CHECK_INSTANCE_CAST ((obj), XTM_TYPE_PROCESS_TREE_VIEW, XtmProcessTreeView))
+#define XTM_PROCESS_TREE_VIEW_CLASS(klass)	(G_TYPE_CHECK_CLASS_CAST ((klass), XTM_TYPE_PROCESS_TREE_VIEW, XtmProcessTreeViewClass))
+#define XTM_IS_PROCESS_TREE_VIEW(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), XTM_TYPE_PROCESS_TREE_VIEW))
+#define XTM_IS_PROCESS_TREE_VIEW_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE ((klass), XTM_TYPE_PROCESS_TREE_VIEW))
+#define XTM_PROCESS_TREE_VIEW_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), XTM_TYPE_PROCESS_TREE_VIEW, XtmProcessTreeViewClass))
+
+typedef struct _XtmProcessTreeView XtmProcessTreeView;
+
+GType		xtm_process_tree_view_get_type			(void);
+GtkWidget *	xtm_process_tree_view_new			();
+
+#endif /* !PROCESS_TREE_VIEW_H */
diff --git a/src/process-window.c b/src/process-window.c
new file mode 100644
index 0000000..5abc152
--- /dev/null
+++ b/src/process-window.c
@@ -0,0 +1,445 @@
+/*
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib-object.h>
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include "settings.h"
+#include "process-window.h"
+#include "process-window_ui.h"
+#include "process-tree-view.h"
+
+
+
+enum
+{
+	PROP_CPU = 1,
+	PROP_MEMORY,
+	PROP_NUM_PROCESSES,
+};
+typedef struct _XtmProcessWindowClass XtmProcessWindowClass;
+typedef struct _XtmProcessWindowPriv XtmProcessWindowPriv;
+struct _XtmProcessWindowClass
+{
+	GtkWidgetClass		parent_class;
+};
+struct _XtmProcessWindow
+{
+	GtkWidget		parent;
+	/*<private>*/
+	XtmProcessWindowPriv *	priv;
+};
+struct _XtmProcessWindowPriv
+{
+	GtkBuilder *		builder;
+	GtkWidget *		window;
+	GtkWidget *		treeview;
+	GtkWidget *		statusbar;
+	guint			statusbar_context_id;
+
+	gushort			cpu;
+	guint64			memory;
+	guint			num_processes;
+
+	XtmSettings *		settings;
+};
+#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), XTM_TYPE_PROCESS_WINDOW, XtmProcessWindowPriv))
+G_DEFINE_TYPE (XtmProcessWindow, xtm_process_window, GTK_TYPE_WIDGET)
+
+static void	xtm_process_window_finalize			(GObject *object);
+static void	xtm_process_window_get_property			(GObject *object, guint property_id, GValue *value, GParamSpec *pspec);
+static void	xtm_process_window_set_property			(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec);
+static void	xtm_process_window_show				(GtkWidget *widget);
+static void	xtm_process_window_hide				(GtkWidget *widget);
+
+static void	emit_destroy_signal				(XtmProcessWindow *window);
+static void	show_menu_execute_task				(XtmProcessWindow *window);
+static void	show_menu_information				(XtmProcessWindow *window);
+static void	show_about_dialog				(XtmProcessWindow *window);
+static void	update_status_bar				(XtmProcessWindow *window);
+
+
+
+static void
+xtm_process_window_class_init (XtmProcessWindowClass *klass)
+{
+	GObjectClass *class;
+	GtkWidgetClass *widget_class;
+
+	g_type_class_add_private (klass, sizeof (XtmProcessWindowPriv));
+	xtm_process_window_parent_class = g_type_class_peek_parent (klass);
+	class = G_OBJECT_CLASS (klass);
+	class->finalize = xtm_process_window_finalize;
+	widget_class = GTK_WIDGET_CLASS (klass);
+	widget_class->show = xtm_process_window_show;
+	widget_class->hide = xtm_process_window_hide;
+
+	class->get_property = xtm_process_window_get_property;
+	class->set_property = xtm_process_window_set_property;
+	g_object_class_install_property (class, PROP_CPU,
+		g_param_spec_uint ("cpu", "CPU", "CPU usage", 0, 100, 0, G_PARAM_CONSTRUCT|G_PARAM_WRITABLE));
+	g_object_class_install_property (class, PROP_MEMORY,
+		g_param_spec_uint64 ("memory", "Memory", "Memory usage", 0, G_MAXUINT64, 0, G_PARAM_CONSTRUCT|G_PARAM_WRITABLE));
+	g_object_class_install_property (class, PROP_NUM_PROCESSES,
+		g_param_spec_uint ("num-processes", "NumProcesses", "Number of processes", 0, G_MAXUINT, 0, G_PARAM_CONSTRUCT|G_PARAM_WRITABLE));
+}
+
+static void
+xtm_process_window_init (XtmProcessWindow *window)
+{
+	GtkWidget *button;
+	gint width, height;
+
+	window->priv = GET_PRIV (window);
+
+	window->priv->settings = xtm_settings_get_default ();
+
+	window->priv->builder = gtk_builder_new ();
+	gtk_builder_add_from_string (window->priv->builder, process_window_ui, process_window_ui_length, NULL);
+
+	window->priv->window = GTK_WIDGET (gtk_builder_get_object (window->priv->builder, "process-window"));
+	g_object_get (window->priv->settings, "window-width", &width, "window-height", &height, NULL);
+	if (width >= 1 && height >= 1)
+		gtk_window_resize (GTK_WINDOW (window->priv->window), width, height);
+	g_signal_connect_swapped (window->priv->window, "destroy", G_CALLBACK (emit_destroy_signal), window);
+
+	window->priv->treeview = xtm_process_tree_view_new ();
+	gtk_widget_show (window->priv->treeview);
+	gtk_container_add (GTK_CONTAINER (gtk_builder_get_object (window->priv->builder, "scrolledwindow")), window->priv->treeview);
+
+	window->priv->statusbar = GTK_WIDGET (gtk_builder_get_object (window->priv->builder, "process-statusbar"));
+	window->priv->statusbar_context_id = gtk_statusbar_get_context_id (GTK_STATUSBAR (window->priv->statusbar), "System information");
+
+	button = GTK_WIDGET (gtk_builder_get_object (window->priv->builder, "toolbutton-execute"));
+	g_signal_connect_swapped (button, "clicked", G_CALLBACK (show_menu_execute_task), window);
+
+	button = GTK_WIDGET (gtk_builder_get_object (window->priv->builder, "toolbutton-information"));
+	g_signal_connect_swapped (button, "clicked", G_CALLBACK (show_menu_information), window);
+
+	button = GTK_WIDGET (gtk_builder_get_object (window->priv->builder, "toolbutton-about"));
+	g_signal_connect_swapped (button, "clicked", G_CALLBACK (show_about_dialog), window);
+
+	button = GTK_WIDGET (gtk_builder_get_object (window->priv->builder, "toolbutton-quit"));
+	g_signal_connect_swapped (button, "clicked", G_CALLBACK (emit_destroy_signal), window);
+
+	g_object_unref (window->priv->builder);
+	window->priv->builder = NULL;
+}
+
+static void
+xtm_process_window_finalize (GObject *object)
+{
+	XtmProcessWindowPriv *priv = XTM_PROCESS_WINDOW (object)->priv;
+
+	if (GTK_IS_WINDOW (priv->window))
+	{
+		gint width, height;
+		guint sort_column_id;
+		GtkSortType sort_type;
+
+		gtk_window_get_size (GTK_WINDOW (priv->window), &width, &height);
+		gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->treeview))),
+				&sort_column_id, &sort_type);
+
+		g_object_set (priv->settings, "window-width", width, "window-height", height,
+				"sort-column-id", sort_column_id, "sort-type", sort_type, NULL);
+	}
+
+	if (XTM_IS_SETTINGS (priv->settings))
+	{
+		g_object_unref (priv->settings);
+	}
+}
+
+static void
+xtm_process_window_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
+{
+	XtmProcessWindowPriv *priv = XTM_PROCESS_WINDOW (object)->priv;
+
+	switch (property_id)
+	{
+		case PROP_CPU:
+		g_value_set_uint (value, priv->cpu);
+		break;
+
+		case PROP_MEMORY:
+		g_value_set_uint64 (value, priv->memory);
+		break;
+
+		case PROP_NUM_PROCESSES:
+		g_value_set_uint (value, priv->num_processes);
+		break;
+
+		default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+		break;
+	}
+}
+
+static void
+xtm_process_window_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
+{
+	XtmProcessWindowPriv *priv = XTM_PROCESS_WINDOW (object)->priv;
+
+	switch (property_id)
+	{
+		case PROP_CPU:
+		priv->cpu = g_value_get_uint (value);
+		// TODO update_cpu_monitor ();
+		update_status_bar (XTM_PROCESS_WINDOW (object));
+		break;
+
+		case PROP_MEMORY:
+		priv->memory = g_value_get_uint64 (value);
+		// TODO update_memory_monitor ();
+		update_status_bar (XTM_PROCESS_WINDOW (object));
+		break;
+
+		case PROP_NUM_PROCESSES:
+		priv->num_processes = g_value_get_uint (value);
+		update_status_bar (XTM_PROCESS_WINDOW (object));
+		break;
+
+		default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+		break;
+	}
+}
+
+/**
+ * Helper functions
+ */
+
+static void
+emit_destroy_signal (XtmProcessWindow *window)
+{
+	g_signal_emit_by_name (window, "destroy", G_TYPE_NONE);
+}
+
+static void
+execute_command (const gchar *command)
+{
+	GError *error = NULL;
+
+	gdk_spawn_command_line_on_screen (gdk_screen_get_default (), command, &error);
+	if (error != NULL)
+	{
+		GtkWidget *dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
+			_("Execution error"));
+		gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), "%s", error->message);
+		gtk_window_set_title (GTK_WINDOW (dialog), _("Task Manager"));
+		gtk_dialog_run (GTK_DIALOG (dialog));
+		gtk_widget_destroy (dialog);
+		g_error_free (error);
+	}
+}
+
+static void
+menu_execute_append_item (GtkMenu *menu, gchar *title, gchar *command, gchar *icon_name)
+{
+	GtkWidget *mi;
+	GtkWidget *image;
+
+	image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
+	mi = gtk_image_menu_item_new_with_label (title);
+	gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (mi), image);
+	gtk_menu_shell_append (GTK_MENU_SHELL (menu), mi);
+	g_signal_connect_swapped (mi, "activate", G_CALLBACK (execute_command), command);
+}
+
+static void
+show_menu_execute_task (XtmProcessWindow *window)
+{
+	// TODO check if xfrun4, xfce4-appfinder, etc are installed and pull them in the menu
+	static GtkWidget *menu = NULL;
+	GtkWidget *mi;
+
+	if (menu == NULL)
+	{
+		menu = gtk_menu_new ();
+		menu_execute_append_item (GTK_MENU (menu), _("Run Program..."), "xfrun4", "system-run");
+		menu_execute_append_item (GTK_MENU (menu), _("Application Finder"), "xfce4-appfinder", "xfce4-appfinder");
+		menu_execute_append_item (GTK_MENU (menu), _("Terminal emulator"), "exo-open --launch TerminalEmulator", "terminal");
+		menu_execute_append_item (GTK_MENU (menu), _("XTerm"), "xterm -fg grey -bg black", "terminal");
+		gtk_widget_show_all (menu);
+	}
+
+	gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 0, gtk_get_current_event_time ());
+}
+
+static void
+information_toggled (GtkCheckMenuItem *mi, XtmSettings *settings)
+{
+	gchar *setting_name;
+	gboolean active;
+
+	active = gtk_check_menu_item_get_active (mi);
+	setting_name = g_object_get_data (G_OBJECT (mi), "setting-name");
+	g_object_set (settings, setting_name, active, NULL);
+}
+
+static void
+menu_information_append_item (GtkMenu *menu, gchar *title, gchar *setting_name, XtmSettings *settings)
+{
+	GtkWidget *mi;
+	gboolean active = FALSE;
+
+	g_object_get (settings, setting_name, &active, NULL);
+
+	mi = gtk_check_menu_item_new_with_label (title);
+	gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mi), active);
+	gtk_menu_shell_append (GTK_MENU_SHELL (menu), mi);
+	g_object_set_data (G_OBJECT (mi), "setting-name", setting_name);
+	g_signal_connect (mi, "toggled", G_CALLBACK (information_toggled), settings);
+}
+
+static void
+show_menu_information (XtmProcessWindow *window)
+{
+	static GtkWidget *menu = NULL;
+	GtkWidget *mi;
+
+	if (menu != NULL)
+	{
+		gtk_widget_destroy (menu);
+	}
+
+	menu = gtk_menu_new ();
+	menu_information_append_item (GTK_MENU (menu), _("Show system processes"), "show-system-processes", window->priv->settings);
+
+	mi = gtk_separator_menu_item_new ();
+	gtk_menu_shell_append (GTK_MENU_SHELL (menu), mi);
+
+	menu_information_append_item (GTK_MENU (menu), _("PID"), "column-pid", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("PPID"), "column-ppid", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("State"), "column-state", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("Virtual Bytes"), "column-vsz", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("Private Bytes"), "column-rss", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("UID"), "column-uid", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("CPU"), "column-cpu", window->priv->settings);
+	menu_information_append_item (GTK_MENU (menu), _("Priority"), "column-priority", window->priv->settings);
+
+	gtk_widget_show_all (menu);
+	gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 0, gtk_get_current_event_time ());
+}
+
+#if !GTK_CHECK_VERSION(2,18,0)
+static void
+url_hook_about_dialog (GtkAboutDialog *dialog, const gchar *uri, gpointer user_data)
+{
+	gchar *command = g_strdup_printf ("exo-open %s", uri);
+	if (!g_spawn_command_line_async (command, NULL))
+	{
+		g_free (command);
+		command = g_strdup_printf ("firefox %s", uri);
+		g_spawn_command_line_async (command, NULL);
+	}
+	g_free (command);
+}
+#endif
+
+static void
+show_about_dialog (XtmProcessWindow *window)
+{
+	const gchar *authors[] = {
+		"(c) 2008-2010 Mike Massonnet",
+		"(c) 2005-2008 Johannes Zellner",
+		NULL };
+	const gchar *license =
+		"This program is free software; you can redistribute it and/or modify\n"
+		"it under the terms of the GNU General Public License as published by\n"
+		"the Free Software Foundation; either version 2 of the License, or\n"
+		"(at your option) any later version.\n";
+
+#if !GTK_CHECK_VERSION(2,18,0)
+	gtk_about_dialog_set_url_hook (url_hook_about_dialog, NULL, NULL);
+#endif
+	gtk_show_about_dialog (GTK_WINDOW (window->priv->window),
+		"program-name", _("Task Manager"),
+		"version", PACKAGE_VERSION,
+		"copyright", "Copyright \302\251 2005-2010 The Xfce development team",
+		"logo-icon-name", "utilities-system-monitor",
+		"icon-name", GTK_STOCK_ABOUT,
+		"comments", _("Easy to use task manager"),
+		"license", license,
+		"authors", authors,
+		"translator-credits", _("translator-credits"),
+		"website", "http://goodies.xfce.org/projects/applications/xfce4-taskmanager",
+		"website-label", "goodies.xfce.org",
+		NULL);
+}
+
+static void
+update_status_bar (XtmProcessWindow *window)
+{
+	gchar *text = NULL;
+
+	text = g_strdup_printf (_("Processes: %d \t CPU: %d%% \t Memory: %d%%"),
+		window->priv->num_processes, window->priv->cpu, window->priv->memory);
+	gtk_statusbar_pop (GTK_STATUSBAR (window->priv->statusbar), window->priv->statusbar_context_id);
+	gtk_statusbar_push (GTK_STATUSBAR (window->priv->statusbar), window->priv->statusbar_context_id, text);
+}
+
+
+
+/**
+ * Class functions
+ */
+
+GtkWidget *
+xtm_process_window_new ()
+{
+	return g_object_new (XTM_TYPE_PROCESS_WINDOW, NULL);
+}
+
+static void
+xtm_process_window_show (GtkWidget *widget)
+{
+	g_return_if_fail (G_LIKELY (GTK_IS_WIDGET (widget)));
+	g_return_if_fail (G_LIKELY (GTK_IS_WIDGET (XTM_PROCESS_WINDOW (widget)->priv->window)));
+	gtk_widget_show (XTM_PROCESS_WINDOW (widget)->priv->window);
+}
+
+static void
+xtm_process_window_hide (GtkWidget *widget)
+{
+	g_return_if_fail (G_LIKELY (GTK_IS_WIDGET (widget)));
+	g_return_if_fail (G_LIKELY (GTK_IS_WIDGET (XTM_PROCESS_WINDOW (widget)->priv->window)));
+	gtk_widget_hide (XTM_PROCESS_WINDOW (widget)->priv->window);
+}
+
+void
+xtm_process_window_set_model (XtmProcessWindow *window, GtkTreeModel *model)
+{
+	g_return_if_fail (G_LIKELY (XTM_IS_PROCESS_WINDOW (window)));
+	g_return_if_fail (G_LIKELY (GTK_IS_TREE_VIEW (window->priv->treeview)));
+	gtk_tree_view_set_model (GTK_TREE_VIEW (window->priv->treeview), model);
+}
+
+GtkTreeModel *
+xtm_process_window_get_model (XtmProcessWindow *window)
+{
+	g_return_val_if_fail (G_LIKELY (XTM_IS_PROCESS_WINDOW (window)), NULL);
+	g_return_val_if_fail (G_LIKELY (GTK_IS_TREE_VIEW (window->priv->treeview)), NULL);
+	return gtk_tree_view_get_model (GTK_TREE_VIEW (window->priv->treeview));
+}
+
+void
+xtm_process_window_set_system_info (XtmProcessWindow *window, guint num_processes, gushort cpu, guint64 memory)
+{
+	g_return_if_fail (G_LIKELY (XTM_IS_PROCESS_WINDOW (window)));
+	g_return_if_fail (G_LIKELY (GTK_IS_STATUSBAR (window->priv->statusbar)));
+	g_object_set (window, "num-processes", num_processes, "cpu", cpu, "memory", memory, NULL);
+}
+
diff --git a/src/process-window.h b/src/process-window.h
new file mode 100644
index 0000000..8555d92
--- /dev/null
+++ b/src/process-window.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef PROCESS_WINDOW_H
+#define PROCESS_WINDOW_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+#define XTM_TYPE_PROCESS_WINDOW			(xtm_process_window_get_type ())
+#define XTM_PROCESS_WINDOW(obj)			(G_TYPE_CHECK_INSTANCE_CAST ((obj), XTM_TYPE_PROCESS_WINDOW, XtmProcessWindow))
+#define XTM_PROCESS_WINDOW_CLASS(klass)		(G_TYPE_CHECK_CLASS_CAST ((klass), XTM_TYPE_PROCESS_WINDOW, XtmProcessWindowClass))
+#define XTM_IS_PROCESS_WINDOW(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), XTM_TYPE_PROCESS_WINDOW))
+#define XTM_IS_PROCESS_WINDOW_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE ((klass), XTM_TYPE_PROCESS_WINDOW))
+#define XTM_PROCESS_WINDOW_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), XTM_TYPE_PROCESS_WINDOW, XtmProcessWindowClass))
+
+typedef struct _XtmProcessWindow XtmProcessWindow;
+
+GType		xtm_process_window_get_type			(void);
+GtkWidget *	xtm_process_window_new				();
+GtkTreeModel *	xtm_process_window_get_model			(XtmProcessWindow *window);
+void		xtm_process_window_set_system_info		(XtmProcessWindow *window, guint num_processes, gushort cpu, guint64 mem);
+
+#endif /* !PROCESS_WINDOW_H */
diff --git a/src/process-window.ui b/src/process-window.ui
new file mode 100644
index 0000000..10740d7
--- /dev/null
+++ b/src/process-window.ui
@@ -0,0 +1,147 @@
+<?xml version="1.0"?>
+<interface>
+  <requires lib="gtk+" version="2.16"/>
+  <!-- interface-naming-policy project-wide -->
+  <object class="GtkWindow" id="process-window">
+    <property name="title" translatable="yes">Task Manager</property>
+    <property name="default_width">490</property>
+    <property name="default_height">465</property>
+    <property name="icon_name">utilities-system-monitor</property>
+    <child>
+      <object class="GtkVBox" id="process-vbox">
+        <property name="visible">True</property>
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="GtkToolbar" id="process-toolbar">
+            <property name="visible">True</property>
+            <property name="toolbar_style">both</property>
+            <property name="show_arrow">False</property>
+            <property name="icon_size">1</property>
+            <child>
+              <object class="GtkToolButton" id="toolbutton-execute">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <property name="use_underline">True</property>
+                <property name="stock_id">gtk-execute</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolButton" id="toolbutton-information">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <property name="use_underline">True</property>
+                <property name="stock_id">gtk-info</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolItem" id="cpu-toolitem">
+                <property name="visible">True</property>
+                <property name="border_width">2</property>
+                <child>
+                  <object class="GtkProgressBar" id="cpu-monitor">
+                    <property name="visible">True</property>
+                    <property name="show_text">True</property>
+                    <property name="text" translatable="yes">CPU</property>
+                  </object>
+                </child>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolItem" id="mem-toolitem">
+                <property name="visible">True</property>
+                <property name="border_width">2</property>
+                <child>
+                  <object class="GtkProgressBar" id="mem-monitor">
+                    <property name="visible">True</property>
+                    <property name="show_text">True</property>
+                    <property name="text" translatable="yes">Memory</property>
+                  </object>
+                </child>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolButton" id="toolbutton-about">
+                <property name="visible">True</property>
+                <property name="use_underline">True</property>
+                <property name="stock_id">gtk-about</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolButton" id="toolbutton-quit">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <property name="use_underline">True</property>
+                <property name="stock_id">gtk-quit</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkVBox" id="mainview-vbox">
+            <property name="visible">True</property>
+            <property name="border_width">6</property>
+            <property name="orientation">vertical</property>
+            <property name="spacing">6</property>
+            <child>
+              <object class="GtkScrolledWindow" id="scrolledwindow">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="hscrollbar_policy">automatic</property>
+                <property name="vscrollbar_policy">automatic</property>
+                <property name="shadow_type">in</property>
+                <child>
+                  <placeholder/>
+                </child>
+              </object>
+              <packing>
+                <property name="position">0</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="position">1</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkStatusbar" id="process-statusbar">
+            <property name="visible">True</property>
+            <property name="spacing">2</property>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="pack_type">end</property>
+            <property name="position">2</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>
diff --git a/src/settings.c b/src/settings.c
new file mode 100644
index 0000000..8591443
--- /dev/null
+++ b/src/settings.c
@@ -0,0 +1,311 @@
+/*
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
+ *
+ * Based on ThunarPreferences:
+ * Copyright (c) Benedikt Meurer <benny at xfce.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib-object.h>
+#include <glib.h>
+
+#include "settings.h"
+
+
+
+enum
+{
+	PROP_SHOW_SYSTEM_PROCESSES = 1,
+	PROP_COLUMN_UID,
+	PROP_COLUMN_PID,
+	PROP_COLUMN_PPID,
+	PROP_COLUMN_STATE,
+	PROP_COLUMN_VSZ,
+	PROP_COLUMN_RSS,
+	PROP_COLUMN_CPU,
+	PROP_COLUMN_PRIORITY,
+	PROP_SORT_COLUMN_ID,
+	PROP_SORT_TYPE,
+	PROP_WINDOW_WIDTH,
+	PROP_WINDOW_HEIGHT,
+	N_PROPS,
+};
+typedef struct _XtmSettingsClass XtmSettingsClass;
+struct _XtmSettingsClass
+{
+	GObjectClass		parent_class;
+};
+struct _XtmSettings
+{
+	GObject			parent;
+	/*<private>*/
+	GValue			values[N_PROPS];
+};
+#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), XTM_TYPE_SETTINGS, XtmSettingsPriv))
+G_DEFINE_TYPE (XtmSettings, xtm_settings, G_TYPE_OBJECT)
+
+static void	xtm_settings_get_property			(GObject *object, guint property_id, GValue *value, GParamSpec *pspec);
+static void	xtm_settings_set_property			(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec);
+
+static void	xtm_settings_load_settings			(XtmSettings *settings);
+static void	xtm_settings_save_settings			(XtmSettings *settings);
+
+
+
+static void
+xtm_settings_class_init (XtmSettingsClass *klass)
+{
+	GObjectClass *class = G_OBJECT_CLASS (klass);
+	xtm_settings_parent_class = g_type_class_peek_parent (klass);
+	class->get_property = xtm_settings_get_property;
+	class->set_property = xtm_settings_set_property;
+	g_object_class_install_property (class, PROP_SHOW_SYSTEM_PROCESSES,
+		g_param_spec_boolean ("show-system-processes", "ShowSystemProcesses", "Show system processes", FALSE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_UID,
+		g_param_spec_boolean ("column-uid", "ColumnUID", "Show column UID", FALSE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_PID,
+		g_param_spec_boolean ("column-pid", "ColumnPID", "Show column PID", TRUE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_PPID,
+		g_param_spec_boolean ("column-ppid", "ColumnPPID", "Show column PPID", FALSE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_STATE,
+		g_param_spec_boolean ("column-state", "ColumnState", "Show column state", FALSE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_VSZ,
+		g_param_spec_boolean ("column-vsz", "ColumnVSZ", "Show column VSZ", FALSE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_RSS,
+		g_param_spec_boolean ("column-rss", "ColumnRSS", "Show column RSS", TRUE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_CPU,
+		g_param_spec_boolean ("column-cpu", "ColumnCPU", "Show column CPU", TRUE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_COLUMN_PRIORITY,
+		g_param_spec_boolean ("column-priority", "ColumnPriority", "Show column priority", FALSE, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_SORT_COLUMN_ID,
+		g_param_spec_uint ("sort-column-id", "SortColumn", "Sort by column id", 0, G_MAXUINT, 0, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_SORT_TYPE,
+		g_param_spec_uint ("sort-type", "SortType", "Sort type (asc/dsc)", 0, 1, 0, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_WINDOW_WIDTH,
+		g_param_spec_int ("window-width", "WindowWidth", "Window width", -1, G_MAXINT, -1, G_PARAM_READWRITE));
+	g_object_class_install_property (class, PROP_WINDOW_HEIGHT,
+		g_param_spec_int ("window-height", "WindowHeight", "Window height", -1, G_MAXINT, -1, G_PARAM_READWRITE));
+}
+
+static void
+xtm_settings_init (XtmSettings *settings)
+{
+	xtm_settings_load_settings (settings);
+}
+
+static void
+xtm_settings_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
+{
+	GValue *src = XTM_SETTINGS (object)->values + property_id;
+	if (G_LIKELY (G_IS_VALUE (src)))
+		g_value_copy (src, value);
+	else
+		g_param_value_set_default (pspec, value);
+}
+
+static void
+xtm_settings_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
+{
+	GValue *dest = XTM_SETTINGS (object)->values + property_id;
+	if (G_UNLIKELY (!G_IS_VALUE(dest)))
+	{
+		g_value_init (dest, pspec->value_type);
+		g_param_value_set_default (pspec, dest);
+	}
+	if (G_LIKELY (g_param_values_cmp (pspec, value, dest) != 0))
+	{
+		g_value_copy (value, dest);
+		xtm_settings_save_settings (XTM_SETTINGS (object));
+	}
+}
+
+
+
+static void
+transform_string_to_boolean (const GValue *src, GValue *dst)
+{
+	g_value_set_boolean (dst, (gboolean)strcmp (g_value_get_string (src), "FALSE") != 0);
+}
+
+static void
+transform_string_to_int (const GValue *src, GValue *dst)
+{
+	g_value_set_int (dst, (gint)strtol (g_value_get_string (src), NULL, 10));
+}
+
+static void
+transform_string_to_uint (const GValue *src, GValue *dst)
+{
+	g_value_set_uint (dst, (gint)strtoul (g_value_get_string (src), NULL, 10));
+}
+
+static void
+register_transformable ()
+{
+	if (!g_value_type_transformable (G_TYPE_STRING, G_TYPE_BOOLEAN))
+		g_value_register_transform_func (G_TYPE_STRING, G_TYPE_BOOLEAN, transform_string_to_boolean);
+
+	if (!g_value_type_transformable (G_TYPE_STRING, G_TYPE_INT))
+		g_value_register_transform_func (G_TYPE_STRING, G_TYPE_INT, transform_string_to_int);
+
+	if (!g_value_type_transformable (G_TYPE_STRING, G_TYPE_UINT))
+		g_value_register_transform_func (G_TYPE_STRING, G_TYPE_UINT, transform_string_to_uint);
+}
+
+static void
+xtm_settings_load_settings (XtmSettings *settings)
+{
+	GKeyFile *rc;
+	gchar *filename;
+
+	register_transformable ();
+
+	g_object_freeze_notify (G_OBJECT (settings));
+
+	rc = g_key_file_new ();
+	filename = g_strdup_printf ("%s/xfce4/xfce4-taskmanager.rc", g_get_user_config_dir ());
+
+	if (g_key_file_load_from_file (rc, filename, G_KEY_FILE_NONE, NULL))
+	{
+		const gchar *string;
+		GValue dst = {0};
+		GValue src = {0};
+		GParamSpec **specs;
+		GParamSpec *spec;
+		guint nspecs;
+		guint n;
+
+		specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), &nspecs);
+		for (n = 0; n < nspecs; ++n)
+		{
+			spec = specs[n];
+			string = g_key_file_get_string (rc, "Settings", g_param_spec_get_nick (spec), NULL);
+			if (G_UNLIKELY (string == NULL))
+				continue;
+
+			g_value_init (&src, G_TYPE_STRING);
+			g_value_set_static_string (&src, string);
+
+			if (spec->value_type == G_TYPE_STRING)
+			{
+				g_object_set_property (G_OBJECT (settings), spec->name, &src);
+			}
+			else if (g_value_type_transformable (G_TYPE_STRING, spec->value_type))
+			{
+				g_value_init (&dst, spec->value_type);
+				if (g_value_transform (&src, &dst))
+					g_object_set_property (G_OBJECT (settings), spec->name, &dst);
+				g_value_unset (&dst);
+			}
+			else
+			{
+				g_warning ("Failed to load property \"%s\"", spec->name);
+			}
+
+			g_value_unset (&src);
+		}
+		g_free (specs);
+	}
+
+	g_free (filename);
+	g_key_file_free (rc);
+
+	g_object_thaw_notify (G_OBJECT (settings));
+}
+
+static void
+xtm_settings_save_settings (XtmSettings *settings)
+{
+	GKeyFile *rc;
+	gchar *filename;
+
+	rc = g_key_file_new ();
+	filename = g_strdup_printf ("%s/xfce4/xfce4-taskmanager.rc", g_get_user_config_dir ());
+
+	{
+		const gchar *string;
+		GValue dst = {0};
+		GValue src = {0};
+		GParamSpec **specs;
+		GParamSpec *spec;
+		guint nspecs;
+		guint n;
+
+		specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), &nspecs);
+		for (n = 0; n < nspecs; ++n)
+		{
+			spec = specs[n];
+			g_value_init (&dst, G_TYPE_STRING);
+			if (spec->value_type == G_TYPE_STRING)
+			{
+				g_object_get_property (G_OBJECT (settings), spec->name, &dst);
+			}
+			else
+			{
+				g_value_init (&src, spec->value_type);
+				g_object_get_property (G_OBJECT (settings), spec->name, &src);
+				g_value_transform (&src, &dst);
+				g_value_unset (&src);
+			}
+			string = g_value_get_string (&dst);
+
+			if (G_LIKELY (string != NULL))
+				g_key_file_set_string (rc, "Settings", g_param_spec_get_nick (spec), string);
+
+			g_value_unset (&dst);
+		}
+		g_free (specs);
+	}
+
+	{
+		GError *error = NULL;
+		gchar *data;
+		gsize length;
+
+		if (!g_file_test (filename, G_FILE_TEST_EXISTS))
+		{
+			gchar *path = g_strdup_printf ("%s/xfce4", g_get_user_config_dir ());
+			g_mkdir_with_parents (path, 0700);
+			g_free (path);
+		}
+
+		data = g_key_file_to_data (rc, &length, NULL);
+		if (!g_file_set_contents (filename, data, length, &error))
+		{
+			g_warning ("Unable to save settings: %s", error->message);
+			g_error_free (error);
+		}
+
+		g_free (data);
+	}
+
+	g_free (filename);
+	g_key_file_free (rc);
+}
+
+
+
+XtmSettings *
+xtm_settings_get_default ()
+{
+	static XtmSettings *settings = NULL;
+	if (G_UNLIKELY (settings == NULL))
+	{
+		settings = g_object_new (XTM_TYPE_SETTINGS, NULL);
+		g_object_add_weak_pointer (G_OBJECT (settings), (gpointer)&settings);
+	}
+	else
+	{
+		g_object_ref (settings);
+	}
+	return settings;
+}
+
diff --git a/src/settings.h b/src/settings.h
new file mode 100644
index 0000000..9e143bb
--- /dev/null
+++ b/src/settings.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2010 Mike Massonnet, <mmassonnet at xfce.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib-object.h>
+
+#define XTM_TYPE_SETTINGS			(xtm_settings_get_type ())
+#define XTM_SETTINGS(obj)			(G_TYPE_CHECK_INSTANCE_CAST ((obj), XTM_TYPE_SETTINGS, XtmSettings))
+#define XTM_SETTINGS_CLASS(klass)		(G_TYPE_CHECK_CLASS_CAST ((klass), XTM_TYPE_SETTINGS, XtmSettingsClass))
+#define XTM_IS_SETTINGS(obj)			(G_TYPE_CHECK_INSTANCE_TYPE ((obj), XTM_TYPE_SETTINGS))
+#define XTM_IS_SETTINGS_CLASS(klass)		(G_TYPE_CHECK_CLASS_TYPE ((klass), XTM_TYPE_SETTINGS))
+#define XTM_SETTINGS_GET_CLASS(obj)		(G_TYPE_INSTANCE_GET_CLASS ((obj), XTM_TYPE_SETTINGS, XtmSettingsClass))
+
+typedef struct _XtmSettings XtmSettings;
+
+GType		xtm_settings_get_type				(void);
+XtmSettings *	xtm_settings_get_default			();
+
+#endif /* !SETTINGS_H */



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