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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrTextContext_DEFINED
#define GrTextContext_DEFINED
#include "GrGlyph.h"
#include "GrPaint.h"
#include "SkDeviceProperties.h"
#include "SkPostConfig.h"
class GrContext;
class GrDrawTarget;
class GrFontScaler;
/*
* This class wraps the state for a single text render
*/
class GrTextContext {
public:
virtual ~GrTextContext() {}
virtual bool canDraw(const SkPaint& paint) = 0;
virtual void drawText(const GrPaint&, const SkPaint&, const char text[], size_t byteLength,
SkScalar x, SkScalar y) = 0;
virtual void drawPosText(const GrPaint&, const SkPaint&,
const char text[], size_t byteLength,
const SkScalar pos[], int scalarsPerPosition,
const SkPoint& offset) = 0;
protected:
GrContext* fContext;
SkDeviceProperties fDeviceProperties;
GrDrawTarget* fDrawTarget;
SkIRect fClipRect;
GrPaint fPaint;
SkPaint fSkPaint;
GrTextContext(GrContext*, const SkDeviceProperties&);
void init(const GrPaint&, const SkPaint&);
void finish() { fDrawTarget = NULL; }
static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache);
static void MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc,
const char text[], size_t byteLength, SkVector* stopVector);
};
#endif
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