def testRequestSize(self):
"""WindowLayout.requestSize requests the size of its child."""
my_layout = windowlayout.WindowLayout()
child = MockWidget(10, 20)
child.requestSize(True)
requested_size = my_layout.requestSize([child])
self.assertEquals(requested_size, Size(10, 20))
def testRequestSize(self):
"""BorderLayout.requestSize adds its margins to the child's size."""
my_layout = borderlayout.BorderLayout((1, 2, 3, 4))
child = MockWidget(10, 20)
child.requestSize(True)
requested_size = my_layout.requestSize([child])
self.assertEquals(requested_size.asTuple(), (14, 26))
def testAllocateSizeTooBigNoExpand(self):
"""BorderLayout.allocateSize expands the margins."""
my_layout = borderlayout.BorderLayout((1, 2, 3, 4))
child = MockWidget(10, 20)
child.can_expand_width = False
child.can_expand_height = False
child.requestSize(True)
allocated_size = SizeAllocation((100, 200), (30, 50))
my_layout.allocateSize(allocated_size, None, [child])
child_size = child.allocated_size
# The child does not expand: its size is nominal but the position not.
#
# Horizontal margin: 30 - 10 = 20.
# The original margins are 1 and 3, total 4.
# ratio = 20 / 4 = 5.
# New margins are 1 * 5 = 5 and 3 * 5 = 15.
# Check: 5 + 15 = 50.
# The child's left is after the first margin: 5.
#
# Vertical margin: 50 - 20 = 30.
# The original margins are 2 and 4, total 6.
# ratio = 30 / 6 = 5.
# New margins are 2 * 5 = 10 and 4 * 5 = 20.
# Check: 10 + 20 = 30.
# The child's top is after the first margin: 10.
self.assertEquals(child_size.pos.asTuple(), (105, 210))
self.assertEquals(child_size.size.asTuple(), (10, 20))
def testAllocateSize(self):
"""ScrollLayout.allocateSize sets the children position to (0, 0)."""
my_scroll = scrolllayout.ScrollLayout()
child = MockWidget(10, 100)
child.requestSize(True)
requested_size = my_scroll.requestSize([child])
allocated_size = SizeAllocation((10, 20), (30, 40))
my_scroll.allocateSize(allocated_size, requested_size, [child])
child_size = child.allocated_size
self.assertEquals(child_size, SizeAllocation((0, 0), (30, 100)))
def testAllocateSize(self):
"""WindowLayout.allocateSize sets the children position to (0, 0)."""
my_layout = windowlayout.WindowLayout()
child = MockWidget(10, 20)
child.requestSize(True)
requested_size = my_layout.requestSize([child])
allocated_size = SizeAllocation((10, 20), (30, 40))
my_layout.allocateSize(allocated_size, requested_size, [child])
cell_size = child.allocated_size
self.assertEquals(cell_size, SizeAllocation((0, 0), (30, 40)))
def testAllocateSizeTooSmall(self):
"""BorderLayout.allocateSize reduces the size of the child."""
my_layout = borderlayout.BorderLayout((1, 2, 3, 4))
child = MockWidget(10, 20)
child.requestSize(True)
allocated_size = SizeAllocation((100, 200), (5, 10))
my_layout.allocateSize(allocated_size, None, [child])
child_size = child.allocated_size
self.assertEquals(child_size.pos.asTuple(), (101, 202))
self.assertEquals(child_size.size.asTuple(), (1, 4))
def testAllocateSizeIdeal(self):
"""BorderLayout.allocateSize in ideal case."""
my_layout = borderlayout.BorderLayout((1, 2, 3, 4))
child = MockWidget(10, 20)
child.requestSize(True)
requested_size = my_layout.requestSize([child])
allocated_size = SizeAllocation((100, 200), requested_size)
my_layout.allocateSize(allocated_size, requested_size, [child])
child_size = child.allocated_size
self.assertEquals(child_size.pos.asTuple(), (101, 202))
self.assertEquals(child_size.size.asTuple(), (10, 20))
def testAllocateSizeTooBigExpand(self):
"""BorderLayout.allocateSize expands the child."""
my_layout = borderlayout.BorderLayout((1, 2, 3, 4))
child = MockWidget(10, 20)
child.can_expand_width = True
child.can_expand_height = True
child.requestSize(True)
allocated_size = SizeAllocation((100, 200), (30, 50))
my_layout.allocateSize(allocated_size, None, [child])
child_size = child.allocated_size
# The child expands, so only its size changes. Its location doesn't.
self.assertEquals(child_size.pos.asTuple(), (101, 202))
self.assertEquals(child_size.size.asTuple(), (30 - 4, 50 - 6))
def testNegotiateSize(self):
"""Sizeable.negotiateSize allocates what it requests."""
widget = MockWidget(32, 16)
self.assertFalse(widget.requested_size)
self.assertFalse(widget.allocated_size)
widget.negotiateSize(True)
self.assertTrue(widget.requested_size)
self.assertTrue(widget.allocated_size)
self.assertEquals(widget.allocated_size.size, widget.requested_size)
self.assertEquals(widget.allocated_size.pos, size.Pos(0, 0))
# Check that the position is maintained.
widget.allocated_size.width = 0
widget.allocated_size.height = 0
widget.allocated_size.left = 100
widget.allocated_size.top = 200
widget.negotiateSize(True)
self.assertEquals(widget.allocated_size.size, widget.requested_size)
self.assertEquals(widget.allocated_size.pos, size.Pos(100, 200))
def testRequestSizeForwardRequest(self):
"""Container.requestSize obeys the forward_request parameter."""
widget1 = MockWidget(10, 20)
widget2 = MockWidget(30, 40)
my_container = container.Container()
my_container.addChild(widget1, 'end')
my_container.addChild(widget2, 'end')
#
my_container._layout = MockLayout()
my_container.requestSize(True)
requested_size = my_container.requested_size
self.assertEquals(requested_size, Size(40, 60))
#
widget1.width = 20
my_container.requestSize(False)
requested_size = my_container.requested_size
self.assertEquals(requested_size, Size(40, 60))
#
widget1.requestSize(True) # True/False doesn't matter here.
my_container.requestSize(False)
requested_size = my_container.requested_size
self.assertEquals(requested_size, Size(50, 60))
#
widget2.width = 40
my_container.requestSize(True)
requested_size = my_container.requested_size
self.assertEquals(requested_size, Size(60, 60))
def testExpand(self):
"""Sizeable.allocateSize checks the expandability."""
big_width = size.SizeAllocation((0, 0), (100, 20))
big_height = size.SizeAllocation((0, 0), (10, 200))
widget = MockWidget(10, 20)
widget.requestSize(True)
widget.can_expand_width = False
widget.can_expand_height = False
self.assertRaises(sizeable.ExpandError,
widget.allocateSize, big_width)
self.assertRaises(sizeable.ExpandError,
widget.allocateSize, big_height)
widget.can_expand_width = True
widget.can_expand_height = False
widget.allocateSize(big_width)
self.assertRaises(sizeable.ExpandError,
widget.allocateSize, big_height)
widget.can_expand_width = False
widget.can_expand_height = True
self.assertRaises(sizeable.ExpandError,
widget.allocateSize, big_width)
widget.allocateSize(big_height)
widget.can_expand_width = True
widget.can_expand_height = True
widget.allocateSize(big_width)
widget.allocateSize(big_height)