1 /*
2  * Copyright 2015 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 #ifndef SkTextBlobRunIterator_DEFINED
8 #define SkTextBlobRunIterator_DEFINED
9 
10 #include "SkTextBlob.h"
11 
12 /**
13  *  Iterate through all of the text runs of the text blob.  For example:
14  *    for (SkTextBlobRunIterator it(blob); !it.done(); it.next()) {
15  *         .....
16  *    }
17  */
18 class SkTextBlobRunIterator {
19 public:
20     SkTextBlobRunIterator(const SkTextBlob* blob);
21 
22     bool done() const;
23     void next();
24 
25     uint32_t glyphCount() const;
26     const uint16_t* glyphs() const;
27     const SkScalar* pos() const;
28     const SkPoint& offset() const;
29     void applyFontToPaint(SkPaint*) const;
30     SkTextBlob::GlyphPositioning positioning() const;
31     uint32_t* clusters() const;
32     uint32_t textSize() const;
33     char* text() const;
34 
35     bool isLCD() const;
36 
37 private:
38     const SkTextBlob::RunRecord* fCurrentRun;
39 
40     SkDEBUGCODE(uint8_t* fStorageTop;)
41 };
42 
43 #endif  // SkTextBlobRunIterator_DEFINED
44