64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SkLayerRasterizer_DEFINED
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#define SkLayerRasterizer_DEFINED
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#include "SkRasterizer.h"
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#include "SkDeque.h"
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#include "SkScalar.h"
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class SkPaint;
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class SkLayerRasterizer : public SkRasterizer {
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public:
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SkLayerRasterizer();
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virtual ~SkLayerRasterizer();
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void addLayer(const SkPaint& paint)
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{
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this->addLayer(paint, 0, 0);
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}
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/** Add a new layer (above any previous layers) to the rasterizer.
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The layer will extract those fields that affect the mask from
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the specified paint, but will not retain a reference to the paint
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object itself, so it may be reused without danger of side-effects.
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*/
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void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy);
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// overrides from SkFlattenable
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virtual Factory getFactory();
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virtual void flatten(SkFlattenableWriteBuffer&);
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protected:
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SkLayerRasterizer(SkFlattenableReadBuffer&);
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// override from SkRasterizer
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virtual bool onRasterize(const SkPath& path, const SkMatrix& matrix,
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const SkIRect* clipBounds,
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SkMask* mask, SkMask::CreateMode mode);
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private:
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SkDeque fLayers;
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static SkFlattenable* CreateProc(SkFlattenableReadBuffer&);
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typedef SkRasterizer INHERITED;
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};
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#endif
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