michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #ifndef SkTextToPathIter_DEFINED
michael@0: #define SkTextToPathIter_DEFINED
michael@0: 
michael@0: #include "SkAutoKern.h"
michael@0: #include "SkPaint.h"
michael@0: 
michael@0: class SkGlyphCache;
michael@0: 
michael@0: class SkTextToPathIter {
michael@0: public:
michael@0:     SkTextToPathIter(const char text[], size_t length, const SkPaint& paint,
michael@0:                      bool applyStrokeAndPathEffects);
michael@0:     ~SkTextToPathIter();
michael@0: 
michael@0:     const SkPaint&  getPaint() const { return fPaint; }
michael@0:     SkScalar        getPathScale() const { return fScale; }
michael@0: 
michael@0:     struct Rec {
michael@0:         const SkPath*   fPath;  // may be null for "whitespace" glyphs
michael@0:         SkScalar        fXPos;
michael@0:     };
michael@0: 
michael@0:     /**
michael@0:      *  Returns false when all of the text has been consumed
michael@0:      */
michael@0:     bool next(const SkPath** path, SkScalar* xpos);
michael@0: 
michael@0: private:
michael@0:     SkGlyphCache*   fCache;
michael@0:     SkPaint         fPaint;
michael@0:     SkScalar        fScale;
michael@0:     SkFixed         fPrevAdvance;
michael@0:     const char*     fText;
michael@0:     const char*     fStop;
michael@0:     SkMeasureCacheProc fGlyphCacheProc;
michael@0: 
michael@0:     SkScalar        fXPos;      // accumulated xpos, returned in next
michael@0:     SkAutoKern      fAutoKern;
michael@0:     int             fXYIndex;   // cache for horizontal -vs- vertical text
michael@0: };
michael@0: 
michael@0: #endif