Remove several hardcoded sizes, substitute them with stylesheets.

shell/view/home/FriendsBox.py

@@ -3,6 +3,7 @@ import random
 import hippo
 
 from sugar.graphics.spreadlayout import SpreadLayout
+from sugar.graphics import style
 from view.home.MyIcon import MyIcon
 from view.BuddyActivityView import BuddyActivityView
 
@@ -16,7 +17,8 @@ class FriendsBox(hippo.CanvasBox, hippo.CanvasItem):
 		self._layout = SpreadLayout()
 		self._friends = {}
 
-		self._my_icon = MyIcon(112)
+		self._my_icon = MyIcon()
+		style.apply_stylesheet(self._my_icon, 'friends.MyIcon')
 		self.append(self._my_icon, hippo.PACK_FIXED)
 
 		friends = self._shell.get_model().get_friends()

shell/view/home/HomeBox.py

@@ -2,6 +2,8 @@ import hippo
 
 from view.home.activitiesdonut import ActivitiesDonut
 from view.home.MyIcon import MyIcon
+from sugar.graphics.grid import Grid
+from sugar.graphics import style
 
 class HomeBox(hippo.CanvasBox, hippo.CanvasItem):
 	__gtype_name__ = 'SugarHomeBox'
@@ -10,10 +12,13 @@ class HomeBox(hippo.CanvasBox, hippo.CanvasItem):
 		hippo.CanvasBox.__init__(self, background_color=0xe2e2e2ff,
 								 yalign=2)
 
-		donut = ActivitiesDonut(shell, box_width=300, box_height=300)
+		grid = Grid()
+		donut = ActivitiesDonut(shell, box_width=grid.dimension(7),
+								box_height=grid.dimension(7))
 		self.append(donut)
 
-		self._my_icon = MyIcon(120)
+		self._my_icon = MyIcon()
+		style.apply_stylesheet(self._my_icon, 'home.MyIcon')
 		self.append(self._my_icon, hippo.PACK_FIXED)
 
 	def do_allocate(self, width, height):

shell/view/home/MyIcon.py

@@ -1,10 +1,8 @@
 from sugar.graphics.canvasicon import CanvasIcon
-from sugar.graphics.iconcolor import IconColor
 import conf
 
 class MyIcon(CanvasIcon):
-	def __init__(self, size):
+	def __init__(self):
 		profile = conf.get_profile()
-
 		CanvasIcon.__init__(self, icon_name='stock-buddy',
-					  	    color=profile.get_color(), size=size)
+					  	    color=profile.get_color())

shell/view/home/activitiesdonut.py

@@ -2,6 +2,7 @@ import hippo
 import math
 
 from sugar.graphics.canvasicon import CanvasIcon
+from sugar.graphics import style
 
 class ActivitiesDonut(hippo.CanvasBox, hippo.CanvasItem):
 	__gtype_name__ = 'SugarActivitiesDonut'
@@ -28,7 +29,8 @@ class ActivitiesDonut(hippo.CanvasBox, hippo.CanvasItem):
 		icon_name = activity.get_icon_name()
 		icon_color = activity.get_icon_color()
 
-		icon = CanvasIcon(icon_name=icon_name, color=icon_color, size=75)
+		icon = CanvasIcon(icon_name=icon_name, color=icon_color)
+		style.apply_stylesheet(icon, 'ring.ActivityIcon')
 		icon.connect('activated', self.__activity_icon_clicked_cb, activity)
 		self.append(icon, hippo.PACK_FIXED)
 

shell/view/stylesheet.py

@@ -2,20 +2,35 @@ import gtk
 
 from sugar.graphics.iconcolor import IconColor
 
-if gtk.gdk.screen_width() == 1200:
-	_medium_icon_size = 75
-else:
-	_medium_icon_size = 50
+_screen_factor = gtk.gdk.screen_width() / 1200.0
+
+_standard_icon_size = int(75.0 * _screen_factor)
+_small_icon_size = _standard_icon_size * 0.5
+_medium_icon_size = _standard_icon_size * 1.5
+_large_icon_size = _standard_icon_size * 2.0
+_xlarge_icon_size = _standard_icon_size * 3.0
 
 frame_ActivityIcon = {
 	'color' : IconColor('white'),
+	'size'  : _standard_icon_size
+}
+
+ring_ActivityIcon = {
 	'size'  : _medium_icon_size
 }
 
 frame_ZoomIcon = {
-	'size'  : _medium_icon_size
+	'size' : _standard_icon_size
 }
 
 menu_ActionIcon = {
-	'size'  : _medium_icon_size
+	'size' : _standard_icon_size
+}
+
+home_MyIcon = {
+	'size' : _xlarge_icon_size
+}
+
+friends_MyIcon = {
+	'size' : _large_icon_size
 }

sugar/graphics/grid.py

@@ -14,6 +14,9 @@ class Grid(object):
 		return [grid_x * self._factor, grid_y * self._factor,
 				grid_w * self._factor, grid_h * self._factor]
 
+	def dimension(self, grid_dimension):
+		return grid_dimension * self._factor
+
 	def fit_point(self, x, y):
 		return [int(x / self._factor), int(y / self._factor)]