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don't crash if no mouse

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This commit is contained in:
David Rose 2004-02-09 21:14:22 +00:00
parent 33ae898b0c
commit a2c74532b6
1 changed files with 28 additions and 16 deletions
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44
direct/src/showbase/ShowBase.py
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@ -122,6 +122,7 @@ class ShowBase(DirectObject.DirectObject):
self.pipe = None
self.pipeList = []
self.mak = None
self.mouse2cam = None
self.cam = None
self.camList = []
self.camNode = None
@ -620,6 +621,7 @@ class ShowBase(DirectObject.DirectObject):
return aspectRatio
def makeCamera(self, win, chan = None, layer = None, layerSort = 0,
scene = None,
displayRegion = (0, 1, 0, 1), aspectRatio = None):
"""
@ -634,6 +636,9 @@ class ShowBase(DirectObject.DirectObject):
# Make a new layer on the window.
layer = chan.makeLayer(layerSort)
if scene == None:
scene = self.render
# And make a display region on this layer of the requested
# area.
dr = layer.makeDisplayRegion(*displayRegion)
@ -664,7 +669,7 @@ class ShowBase(DirectObject.DirectObject):
lens.setFilmSize(props.getXSize(), props.getYSize())
camNode.setLens(lens)
camNode.setScene(self.render)
camNode.setScene(scene)
# self.camera is the parent node of all cameras: a node that
# we can move around to move all cameras as a group.
@ -1107,15 +1112,18 @@ class ShowBase(DirectObject.DirectObject):
self.taskMgr.remove('ivalloop')
self.eventMgr.shutdown()
def getBackgroundColor(self):
def getBackgroundColor(self, win = None):
"""
Returns the current window background color. This assumes
the window is set up to clear the color each frame (this is
the normal setting).
"""
return VBase4(self.win.getClearColor())
if win == None:
win = self.win
def setBackgroundColor(self, *args):
return VBase4(win.getClearColor())
def setBackgroundColor(self, r = None, g = None, b = None, win = None):
"""
Sets the window background color to the indicated value.
This assumes the window is set up to clear the color each
@ -1125,17 +1133,17 @@ class ShowBase(DirectObject.DirectObject):
tuple, or the individual r, g, b parameters.
"""
numArgs = len(args)
if numArgs == 3 or numArgs == 4:
color = VBase4(args[0], args[1], args[2], 1.0)
elif numArgs == 1:
if g != None:
color = VBase4(r, g, b, 1.0)
else:
arg = args[0]
color = VBase4(arg[0], arg[1], arg[2], 1.0)
else:
raise TypeError, ('Invalid number of arguments: %d, expected 1, 3, or 4.' % numArgs)
if self.win:
self.win.setClearColor(color)
if win == None:
win = self.win
if win:
win.setClearColor(color)
def toggleBackface(self):
if self.backfaceCullingEnabled:
@ -1195,17 +1203,20 @@ class ShowBase(DirectObject.DirectObject):
# the mouse is disabled. However, we do move the mouse2cam
# object out of there, so we won't be updating the camera any
# more.
self.mouse2cam.reparentTo(self.dataUnused)
if self.mouse2cam:
self.mouse2cam.reparentTo(self.dataUnused)
def enableMouse(self):
"""
Reverse the effect of a previous call to disableMouse().
useDrive() also implicitly enables the mouse.
"""
self.mouse2cam.reparentTo(self.mouseInterface)
if self.mouse2cam:
self.mouse2cam.reparentTo(self.mouseInterface)
def setMouseOnNode(self, newNode):
self.mouse2cam.node().setNode(newNode)
if self.mouse2cam:
self.mouse2cam.node().setNode(newNode)
def changeMouseInterface(self, changeTo):
"""
@ -1218,7 +1229,8 @@ class ShowBase(DirectObject.DirectObject):
self.mouseInterfaceNode = self.mouseInterface.node()
# Hookup the drive to the camera.
self.mouseInterface.reparentTo(self.mouseWatcher)
self.mouse2cam.reparentTo(self.mouseInterface)
if self.mouse2cam:
self.mouse2cam.reparentTo(self.mouseInterface)
def useDrive(self):
"""