71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
#ifndef SkLayerDrawLooper_DEFINED
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#define SkLayerDrawLooper_DEFINED
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#include "SkDrawLooper.h"
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struct SkPoint;
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class SkLayerDrawLooper : public SkDrawLooper {
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public:
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SkLayerDrawLooper();
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virtual ~SkLayerDrawLooper();
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/** Call for each layer you want to add (from top to bottom).
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This returns a paint you can modify, but that ptr is only valid until
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the next call made to this object.
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*/
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SkPaint* addLayer(SkScalar dx, SkScalar dy);
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/** Helper for addLayer() which passes (0, 0) for the offset parameters
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*/
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SkPaint* addLayer() {
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return this->addLayer(0, 0);
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}
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// overrides from SkDrawLooper
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virtual void init(SkCanvas*, SkPaint*);
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virtual bool next();
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virtual void restore();
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// must be public for Registrar :(
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static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) {
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return SkNEW_ARGS(SkLayerDrawLooper, (buffer));
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}
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protected:
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SkLayerDrawLooper(SkFlattenableReadBuffer&);
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// overrides from SkFlattenable
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virtual void flatten(SkFlattenableWriteBuffer& );
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virtual Factory getFactory() { return CreateProc; }
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private:
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struct Rec {
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Rec* fNext;
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SkPaint fPaint;
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SkPoint fOffset;
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static Rec* Reverse(Rec*);
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};
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Rec* fRecs;
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int fCount;
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struct Iter {
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SkPaint fSavedPaint;
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SkPaint* fPaint;
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SkCanvas* fCanvas;
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Rec* fRec;
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};
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Iter fIter;
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class MyRegistrar : public SkFlattenable::Registrar {
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public:
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MyRegistrar();
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};
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typedef SkDrawLooper INHERITED;
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};
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#endif
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