change color of activity widget

1 files changed, 109 insertions, 0 deletions

diff --git a/addons/changecolorevent.py b/addons/changecolorevent.py
new file mode 100644
index 0000000..09ae13a
--- /dev/null
+++ b/addons/changecolorevent.py
@@ -0,0 +1,109 @@
+# Copyright (C) 2009, Tutorius.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 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 St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import logging
+
+import time
+
+import gobject
+
+import gtk, gtk.gdk
+
+from sugar.tutorius.filters import EventFilter
+from sugar.tutorius.properties import TStringProperty, TUAMProperty, TColorProperty
+from sugar.tutorius.gtkutils import find_widget
+
+from sugar import profile
+
+# for easy profile access
+xo_line_color = profile.get_color().get_stroke_color()
+xo_fill_color = profile.get_color().get_fill_color()
+
+class ChangeColorEvent(EventFilter):
+    """
+    IntroMessage is a special EventFilter that uses gobject
+    start button to trigger a state change after user click on it.
+    It must be used inside a gobject main loop to work.
+    """
+    widaddr = TUAMProperty("0")
+    
+    def __init__(self, widaddr=None):
+        """Constructor - Change a widget color
+        @param widaddr: the widget for which you want to change the color (UAM)
+        """
+        super(ChangeColorEvent,self).__init__()
+
+        if widaddr: self.widaddr = widaddr
+
+        self._old_color = None
+        self._new_color = None
+
+        self.wid = None        
+
+    def install_handlers(self, callback, **kwargs):
+        """install_handlers
+        Change the color of the widaddred widget with the chosen color
+        """
+        super(ChangeColorEvent,self).install_handlers(callback, **kwargs)
+
+        logging.debug("INSIDE INSTALL HANDLERS CHANGE COLOR")
+        
+        if not "activity" in kwargs:
+            logging.debug("ACTIVITY NOT IN KWARGS **********")
+
+        # get widget instance
+        self.wid = find_widget(kwargs["activity"], self.widaddr)
+        self.wid.connect("clicked", self.wid_clicked)
+
+        logging.debug("GOT WIDGET IN CHANGE COLOR")
+        
+        # we have to get the initial color in the sugar rc theme
+        current_style = self.wid.rc_get_style()
+        self._old_color = current_style.bg[gtk.STATE_NORMAL]
+
+        # define new color
+        self._new_color = gtk.gdk.color_parse(xo_fill_color) 
+
+        # modify bg color
+        self.wid.modify_bg(gtk.STATE_NORMAL, self._new_color)
+        self.wid.modify_bg(gtk.STATE_NORMAL, self._new_color)
+        self.wid.modify_bg(gtk.STATE_PRELIGHT, self._new_color)
+        self.wid.modify_bg(gtk.STATE_ACTIVE, self._new_color)
+        self.wid.modify_bg(gtk.STATE_INSENSITIVE, self._new_color)
+        
+    def remove_handlers(self):
+        """remove handler
+        Go back to the original color
+        """
+        super(ChangeColorEvent,self).remove_handlers()
+
+        self.wid.modify_bg(gtk.STATE_NORMAL, self._old_color)
+        self.wid.modify_bg(gtk.STATE_NORMAL, self._old_color)
+        self.wid.modify_bg(gtk.STATE_PRELIGHT, self._old_color)
+        self.wid.modify_bg(gtk.STATE_ACTIVE, self._old_color)
+        self.wid.modify_bg(gtk.STATE_INSENSITIVE, self._old_color)
+
+    def wid_clicked(self, widget):
+        self.do_callback()
+
+__event__ = {
+    "name" : "ChangeColorEvent",
+    "display_name" : "Change color",
+    "icon" : "message-bubble",
+    "class" : ChangeColorEvent,
+    "mandatory_props" : ["widaddr"]
+}
+