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Bug 716439; User data for mask layers. r=roc

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This commit is contained in:
Nicholas Cameron 2012-02-08 11:26:33 +13:00
parent 930c8d94e7
commit 5c54eddf89
1 changed files with 18 additions and 0 deletions
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18
layout/base/FrameLayerBuilder.cpp
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@ -459,6 +459,18 @@ public:
gfxPoint mActiveScrolledRootPosition;
};
/*
* User data for layers which will be used as masks.
*/
struct MaskLayerUserData : public LayerUserData
{
// properties of the mask layer; the mask layer may be re-used if these
// remain unchanged.
nsTArray<FrameLayerBuilder::Clip::RoundedRect> mRoundedClipRects;
gfx3DMatrix mTransform;
nsIntRect mBounds;
};
/**
* The address of gThebesDisplayItemLayerUserData is used as the user
* data key for ThebesLayers created by FrameLayerBuilder.
@ -487,6 +499,12 @@ PRUint8 gImageLayerUserData;
* The user data is a LayerManagerData.
*/
PRUint8 gLayerManagerUserData;
/**
* The address of gMaskLayerUserData is used as the user
* data key for mask layers managed by FrameLayerBuilder.
* The user data is a MaskLayerUserData.
*/
PRUint8 gMaskLayerUserData;
} // anonymous namespace