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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrStencilAndCoverTextContext_DEFINED
#define GrStencilAndCoverTextContext_DEFINED
#include "GrTextContext.h"
#include "GrDrawState.h"
#include "SkStrokeRec.h"
class GrTextStrike;
class GrPath;
/*
* This class implements text rendering using stencil and cover path rendering
* (by the means of GrDrawTarget::drawPath).
* This class exposes the functionality through GrTextContext interface.
*/
class GrStencilAndCoverTextContext : public GrTextContext {
public:
GrStencilAndCoverTextContext(GrContext*, const SkDeviceProperties&);
virtual ~GrStencilAndCoverTextContext();
virtual void drawText(const GrPaint&, const SkPaint&, const char text[],
size_t byteLength,
SkScalar x, SkScalar y) SK_OVERRIDE;
virtual void drawPosText(const GrPaint&, const SkPaint&,
const char text[], size_t byteLength,
const SkScalar pos[], SkScalar constY,
int scalarsPerPosition) SK_OVERRIDE;
virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE;
private:
void init(const GrPaint&, const SkPaint&, size_t textByteLength);
void appendGlyph(GrGlyph::PackedID, const SkPoint&,
GrTextStrike*, GrFontScaler*);
void finish();
GrDrawState::AutoRestoreEffects fStateRestore;
SkScalar fTextRatio;
SkStrokeRec fStroke;
SkTDArray<const GrPath*> fPaths;
SkTDArray<SkMatrix> fTransforms;
SkPath fTmpPath;
SkMatrix fGlyphTransform;
bool fNeedsDeviceSpaceGlyphs;
};
#endif
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