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avoid some divide-by-zero exceptions

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This commit is contained in:
David Rose 2013-08-04 18:14:37 +00:00
parent 9158d9b20c
commit a1c70ce95e
1 changed files with 8 additions and 3 deletions
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11
direct/src/showbase/ShowBase.py
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@ -738,6 +738,7 @@ class ShowBase(DirectObject.DirectObject):
flags = flags | GraphicsPipe.BFRequireCallbackWindow
if host:
assert host.isValid()
win = self.graphicsEngine.makeOutput(pipe, name, 0, fbprops,
props, flags, host.getGsg(), host)
elif gsg:
@ -1211,7 +1212,7 @@ class ShowBase(DirectObject.DirectObject):
if win == None:
win = self.win
if win != None and win.hasSize():
if win != None and win.hasSize() and win.getSbsLeftYSize() != 0:
aspectRatio = float(win.getSbsLeftXSize()) / float(win.getSbsLeftYSize())
else:
@ -1222,9 +1223,12 @@ class ShowBase(DirectObject.DirectObject):
if not props.hasSize():
props = WindowProperties.getDefault()
if props.hasSize():
if props.hasSize() and props.getYSize() != 0:
aspectRatio = float(props.getXSize()) / float(props.getYSize())
if aspectRatio == 0:
return 1
return aspectRatio
def getSize(self, win = None):
@ -2660,7 +2664,8 @@ class ShowBase(DirectObject.DirectObject):
if aspectRatio != self.__oldAspectRatio:
self.__oldAspectRatio = aspectRatio
# Fix up some anything that depends on the aspectRatio
self.camLens.setAspectRatio(aspectRatio)
if self.camLens:
self.camLens.setAspectRatio(aspectRatio)
if aspectRatio < 1:
# If the window is TALL, lets expand the top and bottom
self.aspect2d.setScale(1.0, aspectRatio, aspectRatio)