42 lines
990 B
Python
42 lines
990 B
Python
import goocanvas
|
|
|
|
from sugar.canvas.GridLayout import GridGroup
|
|
from sugar.canvas.GridLayout import GridConstraints
|
|
|
|
class GridBox(GridGroup, goocanvas.Item):
|
|
VERTICAL = 0
|
|
HORIZONTAL = 1
|
|
|
|
def __init__(self, direction, size, padding):
|
|
if direction == GridBox.VERTICAL:
|
|
GridGroup.__init__(self, 1, size)
|
|
else:
|
|
GridGroup.__init__(self, size, 1)
|
|
|
|
self._direction = direction
|
|
self._padding = padding
|
|
|
|
def _update_constraints(self, item, position):
|
|
if self._direction == GridBox.HORIZONTAL:
|
|
col = position
|
|
row = 0
|
|
else:
|
|
col = 0
|
|
row = position
|
|
|
|
constraints = GridConstraints(col, row, 1, 1, self._padding)
|
|
self._layout.set_constraints(item, constraints)
|
|
|
|
def add_child(self, item, position=-1):
|
|
if position == -1:
|
|
position = self.get_n_children()
|
|
|
|
self._update_constraints(item, position)
|
|
|
|
i = position
|
|
while i < self.get_n_children():
|
|
self._update_constraints(self.get_child(i), i + 1)
|
|
i += 1
|
|
|
|
GridGroup.add_child(self, item, position)
|