sugarlabs/sugar-toolkit-gtk3
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Fix size request calculation

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This commit is contained in:
Marco Pesenti Gritti 2006-10-10 00:56:19 +02:00
parent 067d60573e
commit 7fa1b02a82
1 changed files with 17 additions and 12 deletions
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29
sugar/graphics/snowflakebox.py
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@ -11,31 +11,39 @@ class SnowflakeBox(hippo.CanvasBox, hippo.CanvasItem):
__gtype_name__ = 'SugarSnowflakeBox' __gtype_name__ = 'SugarSnowflakeBox'
def __init__(self, **kwargs): def __init__(self, **kwargs):
hippo.CanvasBox.__init__(self, **kwargs) hippo.CanvasBox.__init__(self, **kwargs)
self._root = None self._root = None
self._r = 0
def set_root(self, icon): def set_root(self, icon):
self._root = 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 * len(self.get_children())
def _layout_root(self): def _layout_root(self):
[width, height] = self._root.get_allocation() [width, height] = self._root.get_allocation()
[cx, cy] = self._get_center()
x = self._cx - (width / 2) x = cx - (width / 2)
y = self._cy - (height / 2) y = cy - (height / 2)
self.move(self._root, int(x), int(y)) self.move(self._root, int(x), int(y))
def _layout_child(self, child, index): def _layout_child(self, child, index):
r = self._r r = self._get_radius()
if (len(self.get_children()) > 10): if (len(self.get_children()) > 10):
r += _FLAKE_DISTANCE * (index % 3) r += _FLAKE_DISTANCE * (index % 3)
angle = 2 * math.pi / len(self.get_children()) * index angle = 2 * math.pi / len(self.get_children()) * index
[width, height] = child.get_allocation() [width, height] = child.get_allocation()
x = self._cx + math.cos(angle) * r - (width / 2) [cx, cy] = self._get_center()
y = self._cy + math.sin(angle) * r - (height / 2)
x = cx + math.cos(angle) * r - (width / 2)
y = cy + math.sin(angle) * r - (height / 2)
self.move(child, int(x), int(y)) self.move(child, int(x), int(y))
@ -49,7 +57,8 @@ class SnowflakeBox(hippo.CanvasBox, hippo.CanvasItem):
max_child_size = max (max_child_size, width) max_child_size = max (max_child_size, width)
max_child_size = max (max_child_size, height) max_child_size = max (max_child_size, height)
return self._r * 2 + max_child_size + _FLAKE_DISTANCE * 2 return self._get_radius() * 2 + \
max_child_size + _FLAKE_DISTANCE * 2
def do_get_height_request(self, width): def do_get_height_request(self, width):
hippo.CanvasBox.do_get_height_request(self, width) hippo.CanvasBox.do_get_height_request(self, width)
@ -58,10 +67,6 @@ class SnowflakeBox(hippo.CanvasBox, hippo.CanvasItem):
def do_allocate(self, width, height): def do_allocate(self, width, height):
hippo.CanvasBox.do_allocate(self, width, height) hippo.CanvasBox.do_allocate(self, width, height)
self._cx = width / 2
self._cy = height / 2
self._r = _BASE_RADIUS + _CHILDREN_FACTOR * len(self.get_children())
self._layout_root() self._layout_root()
index = 0 index = 0