Refactor the snowflake layout to use the new hippo layout managers.

Cleanup the logic. Better test. Make it internal.
2007-07-05 11:22:09 +02:00
parent 2164f22197
commit 91654729bf
6 changed files with 138 additions and 140 deletions
@@ -16,7 +16,6 @@ sugar_PYTHON =			\
 	roundbox.py		\
 	palette.py		\
 	panel.py		\
-	snowflakebox.py		\
 	spreadbox.py		\
 	toggletoolbutton.py	\
 	toolbox.py		\
@@ -1,106 +0,0 @@
-# Copyright (C) 2006-2007 Red Hat, Inc.
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2 of the License, or (at your option) any later version.
-#
-# This library 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
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the
-# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-
-import math
-
-import cairo
-import hippo
-
-from sugar.graphics import units
-
-_BASE_RADIUS = units.points_to_pixels(20)
-_CHILDREN_FACTOR = 1
-_FLAKE_DISTANCE = units.points_to_pixels(4)
-
-class SnowflakeBox(hippo.CanvasBox, hippo.CanvasItem):
-    __gtype_name__ = 'SugarSnowflakeBox'
-    def __init__(self, **kwargs):
-        hippo.CanvasBox.__init__(self, **kwargs)
-        self._root = None
-
-    def set_root(self, icon):
-        self._root = icon
-
-    def _get_center(self):
-        [width, height] = self.get_allocation()
-        return [width / 2, height / 2]
-
-    def _get_radius(self):
-        return _BASE_RADIUS + _CHILDREN_FACTOR * self._get_n_children()
-
-    def _layout_root(self):
-        [width, height] = self._root.get_allocation()
-        [cx, cy] = self._get_center()
-
-        x = cx - (width / 2)
-        y = cy - (height / 2)
-
-        self.set_position(self._root, int(x), int(y))
-
-    def _get_n_children(self):
-        return len(self.get_children()) - 1
-
-    def _layout_child(self, child, index):
-        r = self._get_radius()
-        if (self._get_n_children() > 10):
-            r += _FLAKE_DISTANCE * (index % 3)
-
-        angle = 2 * math.pi * index / self._get_n_children()
-
-        [width, height] = child.get_allocation()
-        [cx, cy] = self._get_center()
-
-        x = cx + math.cos(angle) * r - (width / 2)
-        y = cy + math.sin(angle) * r - (height / 2)
-
-        self.set_position(child, int(x), int(y))
-
-    def _calculate_size(self):
-        max_child_size = 0
-        
-        for child in self.get_children():
-            [min_w, natural_w] = child.get_width_request()
-            [min_h, natural_h] = child.get_height_request(min_w)
-            max_child_size = max (max_child_size, min_w)
-            max_child_size = max (max_child_size, min_h)
-
-        return self._get_radius() * 2 + max_child_size + _FLAKE_DISTANCE * 2
-
-    def do_get_height_request(self, for_width):
-        hippo.CanvasBox.do_get_height_request(self, for_width)
-        
-        size = self._calculate_size()
-        
-        return (size, size)
-
-    def do_get_width_request(self):
-        hippo.CanvasBox.do_get_width_request(self)
-
-        size = self._calculate_size()
-        
-        return (size, size)
-
-    def do_allocate(self, width, height, origin_changed):
-        hippo.CanvasBox.do_allocate(self, width, height, origin_changed)
-
-        self._layout_root()
-
-        index = 0
-        for child in self.get_children():
-            if child != self._root:
-                self._layout_child(child, index)
-                index += 1