From 5a616a58b52b2150d3113ac7059d20888e0a931f Mon Sep 17 00:00:00 2001
From: Vincent Vinet <vince.vinet@gmail.com>
Date: Thu, 05 Nov 2009 21:41:47 +0000
Subject: Merge dave's commits

---
(limited to 'addons/changecolor.py')

diff --git a/addons/changecolor.py b/addons/changecolor.py
new file mode 100644
index 0000000..460da32
--- /dev/null
+++ b/addons/changecolor.py
@@ -0,0 +1,127 @@
+# 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 time
+
+import gobject
+
+import gtk, gtk.gdk
+
+from sugar.tutorius.actions import Action
+from sugar.tutorius.properties import TUAMProperty
+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 ChangeColor(Action):
+    """
+    ChangeColorEvent
+    """
+    # widget address property
+    widaddr = TUAMProperty("0")
+
+    # set timeout
+    timeout = 500
+    
+    def __init__(self, widaddr=None):
+        """Constructor - Change a widget color
+        @param widaddr: the widget for which you want to change the color (UAM)
+        """
+        Action.__init__(self)
+
+        if widaddr: self.widaddr = widaddr
+
+        self.init_style = None
+        self._new_color = None
+
+        self.wid = None        
+
+        self._handler_id = None
+    
+    def do(self, **kwargs):
+        """
+        do.
+        Change the color of the widaddr widget with the chosen color
+        """
+        
+        if not "activity" in kwargs:
+            raise TypeError("activity argument is Mandatory")
+        
+        # get widget instance
+        self.wid = find_widget(kwargs["activity"], self.widaddr, ignore_errors=False)
+    
+        if not self.wid:
+            raise NameError("widget not found")
+        
+        # we have to get the initial color in the sugar rc theme
+        self.init_style = self.wid.rc_get_style()
+
+        # define new color
+        self._new_color = gtk.gdk.color_parse(xo_fill_color) 
+
+        # set change color timeout (flash)
+        self._handler_id = gobject.timeout_add(ChangeColor.timeout, self._timeout_cb)
+
+    def undo(self):
+        """
+        Remove timer and go back to the original color
+        """
+
+        if self._handler_id:
+            try:
+                #remove the timer
+                gobject.source_remove(self._handler_id)
+            except:
+                pass
+
+        # modify bg color (go back to original color)
+        self.wid.modify_bg(gtk.STATE_NORMAL, self.init_style.bg[gtk.STATE_NORMAL])
+        self.wid.modify_bg(gtk.STATE_PRELIGHT, self.init_style.bg[gtk.STATE_PRELIGHT])
+        self.wid.modify_bg(gtk.STATE_ACTIVE, self.init_style.bg[gtk.STATE_ACTIVE])
+        self.wid.modify_bg(gtk.STATE_INSENSITIVE, self.init_style.bg[gtk.STATE_INSENSITIVE])
+
+    def _timeout_cb(self):
+        """
+        _timeout_cb triggers the eventfilter callback.
+        """
+
+        if self.wid.rc_get_style().bg[gtk.STATE_NORMAL] == self._new_color:
+            # modify bg color (go back to original color)
+            self.wid.modify_bg(gtk.STATE_NORMAL, self.init_style.bg[gtk.STATE_NORMAL])
+            self.wid.modify_bg(gtk.STATE_PRELIGHT, self.init_style.bg[gtk.STATE_PRELIGHT])
+            self.wid.modify_bg(gtk.STATE_ACTIVE, self.init_style.bg[gtk.STATE_ACTIVE])
+            self.wid.modify_bg(gtk.STATE_INSENSITIVE, self.init_style.bg[gtk.STATE_INSENSITIVE])
+        else:
+            # modify bg color (to 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)
+        
+        return True
+
+__action__ = {
+    "name" : "ChangeColor",
+    "display_name" : "Change widget color",
+    "icon" : "message-bubble",
+    "class" : ChangeColor,
+    "mandatory_props" : ["widaddr"]
+}
+
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