Implement ToggleIconButton

sugar/graphics/Makefile.am

@@ -20,6 +20,7 @@ sugar_PYTHON =			\
 	snowflakebox.py		\
 	spreadbox.py		\
 	timeline.py         	\
+	toggleiconbutton.py     \
 	toolbar.py		\
 	units.py		\
 	window.py		\

sugar/graphics/color.py

@@ -21,7 +21,8 @@ _system_colors = {
     'button-hover'                  : '#808080',
     'button-background-hover'       : '#000000',
     'icon-stroke-inactive'          : '#757575',
-    'icon-fill-inactive'            : '#9D9FA1'
+    'icon-fill-inactive'            : '#9D9FA1',
+    'toggle-button-background'      : '#A1A5A8'
 }
 
 def _html_to_rgb(html_color):
@@ -100,3 +101,4 @@ BUTTON_HOVER                = SystemColor('button-hover')
 BUTTON_BACKGROUND_HOVER     = SystemColor('button-background-hover')
 ICON_FILL_INACTIVE          = SystemColor('icon-fill-inactive')
 ICON_STROKE_INACTIVE        = SystemColor('icon-stroke-inactive')
+TOGGLE_BUTTON_BACKGROUND    = SystemColor('toggle-button-background')

sugar/graphics/iconbutton.py

@@ -45,7 +45,7 @@ class IconButton(CanvasIcon):
 
         self._set_size(STANDARD_SIZE)
 
-        self.connect('button-press-event',
+        self.connect_after('button-press-event',
                            self._icon_button_button_press_event_cb)
 
     def _set_size(self, size):

sugar/graphics/toggleiconbutton.py

@@ -0,0 +1,71 @@
+# Copyright (C) 2007, Red Hat
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+import gobject
+
+from sugar.graphics.iconbutton import IconButton
+from sugar.graphics import color
+            
+class ToggleIconButton(IconButton):
+    __gtype_name__ = 'SugarToggleIconButton'    
+
+    __gproperties__ = {
+        'toggled' : (bool, None, None, False,
+                     gobject.PARAM_READWRITE)
+    }
+
+    def __init__(self, **kwargs):
+        self._toggled = False
+
+        IconButton.__init__(self, **kwargs)
+
+        self.connect('button-press-event',
+                     self._toggle_icon_button_press_event_cb)
+
+    def _get_bg_color(self):
+        if self._toggled:
+            col = color.TOGGLE_BUTTON_BACKGROUND
+        else:
+            col = color.BUTTON_BACKGROUND_NORMAL
+
+        return col.get_int()
+
+    def _set_toggled(self, toggled):
+        self._toggled = toggled
+        self.props.background_color = self._get_bg_color()
+
+    def do_set_property(self, pspec, value):
+        if pspec.name == 'toggled':
+            self._set_toggled(value)
+        else:
+            IconButton.do_set_property(self, pspec, value)
+
+    def do_get_property(self, pspec):
+        if pspec.name == 'toggled':
+            return self._toggled
+
+        return IconButton.do_get_property(self, pspec)
+
+    def _toggle_icon_button_press_event_cb(self, widget, event):
+        self.props.toggled = not self._toggled
+        return True
+
+    def prelight(self, enter):
+        if enter:
+            IconButton.prelight(self, enter)
+        else:
+            self.props.background_color = self._get_bg_color()

tests/test-button.py

@@ -23,12 +23,16 @@ import hippo
 
 from sugar.graphics.toolbar import Toolbar
 from sugar.graphics.iconbutton import IconButton
+from sugar.graphics.toggleiconbutton import ToggleIconButton
 from sugar.graphics.button import Button
 from sugar.graphics.entry import Entry
 
 def _button_activated_cb(button):
     print "_button_activated_cb"
 
+def _toggled_changed_cb(button, pspec):
+    print "Toggle state: %d" % button.props.toggled
+
 window = gtk.Window()
 window.connect("destroy", lambda w: gtk.main_quit())
 window.show()
@@ -48,6 +52,10 @@ for i in [1, 2]:
     icon_button = IconButton(icon_name='theme:stock-close')
     toolbar.append(icon_button)
 
+    toggle = ToggleIconButton(icon_name='theme:stock-back')
+    toggle.connect('notify::toggled', _toggled_changed_cb)
+    toolbar.append(toggle)
+
     button = Button(text='Click me!', icon_name='theme:stock-close')
     button.connect('activated', _button_activated_cb)
     toolbar.append(button)