1 /*
2  * Copyright 2013 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 
8 #ifndef SkGScalerContext_DEFINED
9 #define SkGScalerContext_DEFINED
10 
11 #include "SkScalerContext.h"
12 #include "SkTypeface.h"
13 
14 class SkGTypeface : public SkTypeface {
15 public:
16     SkGTypeface(SkTypeface* proxy, const SkPaint&);
17     virtual ~SkGTypeface();
18 
proxy()19     SkTypeface* proxy() const { return fProxy; }
paint()20     const SkPaint& paint() const { return fPaint; }
21 
22 protected:
23     SkScalerContext* onCreateScalerContext(const SkDescriptor*) const override;
24     void onFilterRec(SkScalerContextRec*) const override;
25     SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics(
26         PerGlyphInfo,
27         const uint32_t* glyphIDs,
28         uint32_t glyphIDsCount) const override;
29     SkStreamAsset* onOpenStream(int* ttcIndex) const override;
30     void onGetFontDescriptor(SkFontDescriptor*, bool* isLocal) const override;
31 
32     int onCharsToGlyphs(const void* chars, Encoding encoding,
33                         uint16_t glyphs[], int glyphCount) const override;
34     int onCountGlyphs() const override;
35     int onGetUPEM() const override;
36 
37     void onGetFamilyName(SkString* familyName) const override;
38     SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override;
39 
40     int onGetTableTags(SkFontTableTag tags[]) const override;
41     size_t onGetTableData(SkFontTableTag, size_t offset,
42                           size_t length, void* data) const override;
43 
44 private:
45     SkTypeface* fProxy;
46     SkPaint     fPaint;
47 };
48 
49 #endif
50