sugarlabs/sugar-toolkit-gtk3
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fix size request calculation

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
sugar/graphics/snowflakebox.py
View File

@ -11,31 +11,39 @@ class SnowflakeBox(hippo.CanvasBox, hippo.CanvasItem):
__gtype_name__ = 'SugarSnowflakeBox'
def __init__(self, **kwargs):
hippo.CanvasBox.__init__(self, **kwargs)
self._root = None
self._r = 0
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 * len(self.get_children())
def _layout_root(self):
[width, height] = self._root.get_allocation()
[cx, cy] = self._get_center()
x = self._cx - (width / 2)
y = self._cy - (height / 2)
x = cx - (width / 2)
y = cy - (height / 2)
self.move(self._root, int(x), int(y))
def _layout_child(self, child, index):
r = self._r
r = self._get_radius()
if (len(self.get_children()) > 10):
r += _FLAKE_DISTANCE * (index % 3)
angle = 2 * math.pi / len(self.get_children()) * index
[width, height] = child.get_allocation()
x = self._cx + math.cos(angle) * r - (width / 2)
y = self._cy + math.sin(angle) * r - (height / 2)
[cx, cy] = self._get_center()
x = cx + math.cos(angle) * r - (width / 2)
y = cy + math.sin(angle) * r - (height / 2)
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, 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):
hippo.CanvasBox.do_get_height_request(self, width)
@ -58,10 +67,6 @@ class SnowflakeBox(hippo.CanvasBox, hippo.CanvasItem):
def 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()
index = 0