sugar-toolkit-gtk3/sugar/canvas/GridModel.py

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import goocanvas
from sugar.canvas.GridLayout import GridGroup
# FIXME model subclassing doesn't work in pygoocanvas
class GridModel:
def __init__(self, bg_color):
self._model = goocanvas.CanvasModelSimple()
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self._width = 1200
self._height = 900
item = goocanvas.Rect(width=self._width, height=self._height,
line_width=0, fill_color=bg_color)
self._model.get_root_item().add_child(item)
self._root = GridGroup()
self._root.props.width = self._width
self._root.props.height = self._height
self._model.get_root_item().add_child(self._root)
def add(self, child):
self._root.add_child(child)
def get(self):
return self._model
def get_width(self):
return self._width
def get_bounds(self, constraints):
return self.get_layout().get_bounds(self._root, constraints)
def get_layout(self):
return self._root.get_layout()