From e2582f55996c91e7c686debc4db16db04c277106 Mon Sep 17 00:00:00 2001
From: Walter Bender <walter.bender@gmail.com>
Date: Sun, 31 Mar 2013 21:06:37 +0000
Subject: Add background image to home view

---
diff --git a/src/jarabe/desktop/homebox.py b/src/jarabe/desktop/homebox.py
index b87c345..3b59348 100644
--- a/src/jarabe/desktop/homebox.py
+++ b/src/jarabe/desktop/homebox.py
@@ -1,4 +1,6 @@
 # Copyright (C) 2008 One Laptop Per Child
+# Copyright (C) 2008-2013 Sugar Labs
+# Copyright (C) 2012 Agustin Zubiaga <aguz@sugarlabs.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
@@ -19,7 +21,10 @@ import logging
 import os
 
 from gi.repository import GObject
+from gi.repository import GdkPixbuf
+from gi.repository import GConf
 from gi.repository import Gtk
+from gi.repository import Gdk
 
 from sugar3.graphics import style
 from sugar3.graphics.alert import Alert
@@ -29,6 +34,12 @@ from jarabe.desktop import favoritesview
 from jarabe.desktop.activitieslist import ActivitiesList
 from jarabe.util.normalize import normalize_string
 
+def get_bg_image_path():
+    client = GConf.Client.get_default()
+    return client.get_string('/desktop/sugar/user/background')
+
+_BACKGROUND_IMAGE_PATH = get_bg_image_path()
+
 _FAVORITES_VIEW = 0
 _LIST_VIEW = 1
 
@@ -41,7 +52,13 @@ class HomeBox(Gtk.VBox):
 
         Gtk.VBox.__init__(self)
 
-        self._favorites_box = favoritesview.FavoritesBox()
+        self._background_pixbuf = None
+
+        self._favorites_eventbox = Gtk.EventBox()
+        self._favorites_eventbox.connect('draw', self._draw_background)
+        self._favorites_box = favoritesview.FavoritesBox(True)
+        self._favorites_eventbox.add(self._favorites_box)
+
         self._list_view = ActivitiesList()
 
         toolbar.connect('query-changed', self.__toolbar_query_changed_cb)
@@ -54,6 +71,8 @@ class HomeBox(Gtk.VBox):
         self._set_view(_FAVORITES_VIEW)
         self._query = ''
 
+        self._update_background_image()
+
     def show_software_updates_alert(self):
         alert = Alert()
         updater_icon = Icon(icon_name='module-updater',
@@ -128,12 +147,15 @@ class HomeBox(Gtk.VBox):
                 self.remove(self._list_view)
 
             if self._favorites_box not in self.get_children():
-                self.add(self._favorites_box)
+                self.add(self._favorites_eventbox)
+                self._favorites_eventbox.show_all()
                 self._favorites_box.show()
                 self._favorites_box.grab_focus()
         elif view == _LIST_VIEW:
             if self._favorites_box in self.get_children():
                 self.remove(self._favorites_box)
+            if self._favorites_eventbox in self.get_children():
+                self.remove(self._favorites_eventbox)
 
             if self._list_view not in self.get_children():
                 self.add(self._list_view)
@@ -160,3 +182,28 @@ class HomeBox(Gtk.VBox):
         if resume_mode and self._query != '':
             self._list_view.set_filter(self._query)
             self._favorites_box.set_filter(self._query)
+
+    def _draw_background(self, widget, context):
+        if self._background_pixbuf is None:
+            return
+
+        alloc = widget.get_allocation()
+
+        if self._background_pixbuf.get_width() != alloc.width or \
+                self._background_pixbuf.get_height() != alloc.height:
+            self._background_pixbuf = self._background_pixbuf.scale_simple(
+                alloc.width,
+                alloc.height,
+                GdkPixbuf.InterpType.TILES)
+        Gdk.cairo_set_source_pixbuf(context, self._background_pixbuf, 0, 0)
+        context.paint()
+
+    def _update_background_image(self, *args):
+        if os.path.exists(_BACKGROUND_IMAGE_PATH):
+            try:
+                self._background_pixbuf = GdkPixbuf.Pixbuf.new_from_file(
+                    _BACKGROUND_IMAGE_PATH)
+                self._favorites_eventbox.queue_draw()
+            except Exception as e:
+                logging.debug('Failed to update background image %s: %s' % \
+                                  (_BACKGROUND_IMAGE_PATH, str(e)))
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