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scale buttons around button center

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This commit is contained in:
David Rose 2004-08-05 23:11:20 +00:00
parent 642e15632a
commit 2cd325216e
1 changed files with 20 additions and 5 deletions
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25
direct/src/gui/DirectButton.py
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@ -47,16 +47,31 @@ class DirectButton(DirectFrame):
# Initialize superclasses # Initialize superclasses
DirectFrame.__init__(self, parent) DirectFrame.__init__(self, parent)
# If specifed, add scaling to the pressed state to make it look # If specifed, add scaling to the pressed state to make it
# like the button is moving when you press it # look like the button is moving when you press it. We have
# to set up the node first, before we call initialise options;
# but we can't actually apply the scale until we have the
# bounding volume (which happens during initialise options).
pressEffectNP = None
if self['pressEffect']: if self['pressEffect']:
np = self.stateNodePath[1].attachNewNode('pressEffect', 1) pressEffectNP = self.stateNodePath[1].attachNewNode('pressEffect', 1)
np.setScale(0.98) self.stateNodePath[1] = pressEffectNP
self.stateNodePath[1] = np
# Call option initialization functions # Call option initialization functions
self.initialiseoptions(DirectButton) self.initialiseoptions(DirectButton)
# Now apply the scale.
if pressEffectNP:
bounds = self.getBounds()
centerX = (bounds[0] + bounds[1]) / 2
centerY = (bounds[2] + bounds[3]) / 2
# Make a matrix that scales about the point
mat = Mat4.translateMat(-centerX, 0, -centerY) * \
Mat4.scaleMat(0.98) * \
Mat4.translateMat(centerX, 0, centerY)
pressEffectNP.setMat(mat)
def setCommandButtons(self): def setCommandButtons(self):
# Attach command function to specified buttons # Attach command function to specified buttons
# Left mouse button # Left mouse button