Add simple theme support to pick up color themes in the Home Window

shell/home/HomeView.py

@@ -8,6 +8,8 @@ from sugar.canvas.DonutItem import DonutItem
 from sugar.canvas.DonutItem import PieceItem
 from sugar.canvas.DonutItem import PieceIcon
 
+from Theme import Theme
+
 class TasksItem(DonutItem):
 	def __init__(self, shell):
 		DonutItem.__init__(self, 250)
@@ -41,16 +43,31 @@ class TasksItem(DonutItem):
 class Background(goocanvas.Group):
 	def __init__(self):
 		goocanvas.Group.__init__(self)
+		self._theme = Theme()
+		self._theme.connect("theme-changed", self.__theme_changed_cb)
 
-		item = goocanvas.Rect(width=1200, height=900,
-							  fill_color="#d8d8d8")
-		self.add_child(item)
+		color = self._theme.get_home_colors()[1]
+		self._outer_rect = goocanvas.Rect(width=1200, height=900,
+										  fill_color=color)
+		self.add_child(self._outer_rect)
+
+		color = self._theme.get_home_colors()[0]
+		self._inner_rect = goocanvas.Rect(x=100, y=100, width=1000, height=700,
+										  line_width=0, fill_color=color,
+										  radius_x=30, radius_y=30)
+		self.add_child(self._inner_rect)
 
 		item = goocanvas.Text(text="My Activities",
 							  x=12, y=12, fill_color="black",
                               font="Sans 21")
 		self.add_child(item)
 
+	def __theme_changed_cb(self, theme, colors):
+		color = self._theme.get_home_colors()[0]
+		self._inner_rect.set_property("fill-color", color)
+		color = self._theme.get_home_colors()[1]
+		self._outer_rect.set_property("fill-color", color)
+
 class Model(goocanvas.CanvasModelSimple):
 	def __init__(self, shell):
 		goocanvas.CanvasModelSimple.__init__(self)

shell/home/Theme.py

@@ -0,0 +1,41 @@
+import gobject
+
+class Theme(gobject.GObject):
+	__gsignals__ = {
+		'theme-changed':   (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
+					       ([]))
+	}
+
+	# from OLPC_PLAN_14.swf
+	__colors = {
+		'blue':      ("#c7d2fb", "#bbc8fa", "#afbffa"),
+		'turquoise': ("#c8dce8", "#bdd4e3", "#b1cdde"),
+		'green':     ("#ccebac", "#c1e79a", "#b6e388"),
+		'tan':       ("#e8ead1", "#e4e5c8", "#dfe1be"),
+		'gray':      ("#dbe1dd", "#d3dbd5", "#ccd5ce"),
+		'dark-gray': ("#dad1d4", "#d2c7cb", "#cabdc2")
+	}
+
+	def __init__(self):
+		gobject.GObject.__init__(self)
+		self._cur_theme = 'blue'
+
+	def set(self, theme):
+		updated = False
+		if type(theme) == type(""):
+			theme = theme.lower()
+			if self.__colors.has_key(theme):
+				self._cur_theme = theme
+				updated = True
+		elif type(theme) == type(1):
+			try:
+				theme = self.__colors.keys()[theme]
+				self._cur_theme = theme
+				updated = True
+			except IndexError:
+				pass
+		if updated:
+			self.emit('theme-changed')
+
+	def get_home_colors(self):
+		return self.__colors[self._cur_theme]