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