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O2GState helper methods

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This commit is contained in:
Christopher Lloyd 2010-01-09 21:56:29 +00:00
parent 31c3129d21
commit 26e2436105
2 changed files with 14 additions and 0 deletions
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2
CoreGraphics/O2GraphicsState.h
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@ -53,6 +53,8 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
}
-initWithDeviceTransform:(O2AffineTransform)deviceTransform;
-initFlippedWithDeviceHeight:(O2Float)height;
-initFlippedWithDeviceHeight:(O2Float)height concat:(O2AffineTransform)concat;
-init;
-(O2AffineTransform)userSpaceToDeviceSpaceTransform;

12
CoreGraphics/O2GraphicsState.m
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@ -42,6 +42,18 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
return self;
}
-initFlippedWithDeviceHeight:(O2Float)height {
O2AffineTransform flip={1,0,0,-1,0,height};
return [self initWithDeviceTransform:flip];
}
-initFlippedWithDeviceHeight:(O2Float)height concat:(O2AffineTransform)concat {
O2AffineTransform flip={1,0,0,-1,0,height};
return [self initWithDeviceTransform:O2AffineTransformConcat(flip,concat)];
}
-init {
return [self initWithDeviceTransform:O2AffineTransformIdentity];
}