Rework menu positioning. Cleanups.

sugar/canvas/Grid.py

@@ -7,7 +7,22 @@ from sugar.canvas.IconItem import IconItem
 class Grid:
 	COLS = 80.0
 	ROWS = 60.0
+	MACRO_CELL_FACTOR = 5.0
 
+	def get_macro_rows(self):
+		return Grid.ROWS / Grid.MACRO_CELL_FACTOR
+
+	def get_macro_cols(self):
+		return Grid.COLS / Grid.MACRO_CELL_FACTOR
+
+	def macro_to_micro(self, x, y):
+		return [round(x * Grid.MACRO_CELL_FACTOR),
+				round(y * Grid.MACRO_CELL_FACTOR)]
+
+	def micro_to_macro(self, x, y):
+		return [round(x / Grid.MACRO_CELL_FACTOR),
+				round(y / Grid.MACRO_CELL_FACTOR)]
+	
 	def convert_from_screen(self, x, y):
 		factor = Grid.COLS / gtk.gdk.screen_width()
 

sugar/canvas/Makefile.am

@@ -6,4 +6,5 @@ sugar_PYTHON =			\
 	Colors.py		\
 	Grid.py			\
 	IconItem.py		\
-	IconColor.py
+	IconColor.py		\
+	MenuIcon.py

sugar/canvas/Menu.py

@@ -61,6 +61,9 @@ class Menu(gtk.Window):
 
 		return box
 
+	def get_grid(self):
+		return self._grid
+
 	def add_action(self, icon, action_id):
 		if self._action_box == None:
 			self._action_box = self._create_action_box()

sugar/canvas/MenuIcon.py

@@ -13,6 +13,21 @@ class _MenuShell:
 			self._menu_controller.popdown()
 		self._menu_controller = controller
 
+class _MenuStrategy:
+	def get_menu_position(self, menu, grid_x1, grid_y1, grid_x2, grid_y2):
+		grid_x = grid_x2
+		if grid_x + menu.get_width() > Grid.COLS:
+			grid_x = grid_x1 - menu.get_width() + 1
+
+		grid_y = grid_y1
+
+		if grid_y < 0:
+			grid_y = 0
+		if grid_y + menu.get_width() > Grid.ROWS:
+			grid_y = Grid.ROWS - menu.get_width()
+
+		return [grid_x, grid_y]
+
 class MenuIcon(IconItem, goocanvas.Item):
 	_menu_shell = _MenuShell()
 
@@ -21,19 +36,19 @@ class MenuIcon(IconItem, goocanvas.Item):
 
 		self._grid = grid
 		self._menu = None
-		self._menu_distance = 0
 		self._hover_menu = False
 		self._popdown_on_leave = False
 		self._popdown_sid = 0
-
-	def set_menu_distance(self, distance):
-		self._menu_distance = distance
+		self._menu_strategy = _MenuStrategy()
 
 	def popdown(self):
 		if self._menu:
 			self._menu.destroy()
 			self._menu = None
 
+	def set_menu_strategy(self, strategy):
+		self._menu_strategy = strategy
+
 	def _popup(self, x1, y1, x2, y2):
 		self.popdown()
 
@@ -46,21 +61,13 @@ class MenuIcon(IconItem, goocanvas.Item):
 		self._menu.connect('leave-notify-event',
 						   self._menu_leave_notify_event_cb)
 
-		distance = self._menu_distance
-
 		[grid_x1, grid_y1] = grid.convert_from_screen(x1, y1)
 		[grid_x2, grid_y2] = grid.convert_from_screen(x2, y2)
 
-		grid_x = grid_x2 + distance
-		if grid_x + self._menu.get_width() > Grid.COLS:
-			grid_x = grid_x1 - self._menu.get_width() + 1 - distance
-
-		grid_y = grid_y1
-
-		if grid_y < 0:
-			grid_y = 0
-		if grid_y + self._menu.get_width() > Grid.ROWS:
-			grid_y = Grid.ROWS - self._menu.get_width()
+		strategy = self._menu_strategy
+		[grid_x, grid_y] = strategy.get_menu_position(self._menu,
+													  grid_x1, grid_y1,
+												      grid_x2, grid_y2)
 
 		grid.set_constraints(self._menu, grid_x, grid_y,
 							 self._menu.get_width(), self._menu.get_height())