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Delete old surfaces when no longer used

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This commit is contained in:
Dan Williams 2007-01-08 17:12:20 -05:00
parent 946a8f1b42
commit 6b67c410e0
1 changed files with 9 additions and 6 deletions
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15
sugar/graphics/canvasicon.py
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@ -82,27 +82,31 @@ class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
_cache = _IconCache() _cache = _IconCache()
def __init__(self, **kwargs): def __init__(self, **kwargs):
self._buffer = None
self._size = 24 self._size = 24
self._color = None self._color = None
self._icon_name = None self._icon_name = None
hippo.CanvasBox.__init__(self, **kwargs) hippo.CanvasBox.__init__(self, **kwargs)
self._buffer = None
self.connect('button-press-event', self._button_press_event_cb) self.connect('button-press-event', self._button_press_event_cb)
def _invalidate_buffer(self, new_buffer):
if self._buffer:
del self._buffer
self._buffer = new_buffer
def do_set_property(self, pspec, value): def do_set_property(self, pspec, value):
if pspec.name == 'icon-name': if pspec.name == 'icon-name':
self._icon_name = value self._icon_name = value
self._buffer = None self._invalidate_buffer(None)
self.emit_paint_needed(0, 0, -1, -1) self.emit_paint_needed(0, 0, -1, -1)
elif pspec.name == 'color': elif pspec.name == 'color':
self._buffer = None self._invalidate_buffer(None)
self._color = value self._color = value
self.emit_paint_needed(0, 0, -1, -1) self.emit_paint_needed(0, 0, -1, -1)
elif pspec.name == 'size': elif pspec.name == 'size':
self._buffer = None self._invalidate_buffer(None)
self._size = value self._size = value
self.emit_request_changed() self.emit_request_changed()
@ -129,7 +133,6 @@ class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
del ctx del ctx
self._buffer = surface self._buffer = surface
self._buffer_scale = scale
return self._buffer return self._buffer