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56 lines
1.1 KiB
Python
56 lines
1.1 KiB
Python
import gobject
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from sugar.scene.Transformation import Transformation
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class Actor(gobject.GObject):
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__gsignals__ = {
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'changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ())
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}
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def __init__(self):
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gobject.GObject.__init__(self)
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self._parent = None
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self._x = 0
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self._y = 0
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self._width = -1
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self._height = -1
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self._transf = Transformation()
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def set_position(self, x, y):
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self._x = x
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self._y = y
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self.notify_changed()
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def _get_parents(self):
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parents = []
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parent = self._parent
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while parent:
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parents.insert(0, parent)
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parent = parent._parent
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return parents
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def _get_abs_position(self, x, y):
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transf = None
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parents = self._get_parents()
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for actor in parents:
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if transf:
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transf = transf.compose(actor._transf)
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else:
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transf = actor._transf
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return transf.get_position(x, y)
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def notify_changed(self):
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if self._parent:
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self._parent.notify_changed()
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else:
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self.emit('changed')
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def set_size(self, width, height):
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self._width = width
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self._height = height
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self.notify_changed()
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def render(self, drawable):
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pass
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