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1 /* | 1 /* |
2 * Copyright (c) 2012 Google Inc. All rights reserved. | 2 * Copyright (c) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef HarfBuzzFace_h | 31 #ifndef HarfBuzzFace_h |
32 #define HarfBuzzFace_h | 32 #define HarfBuzzFace_h |
33 | 33 |
| 34 #include "platform/fonts/UnicodeRangeSet.h" |
34 #include "wtf/Allocator.h" | 35 #include "wtf/Allocator.h" |
35 #include "wtf/HashMap.h" | 36 #include "wtf/HashMap.h" |
36 #include "wtf/Noncopyable.h" | 37 #include "wtf/Noncopyable.h" |
37 #include "wtf/PassRefPtr.h" | 38 #include "wtf/PassRefPtr.h" |
38 #include "wtf/RefCounted.h" | 39 #include "wtf/RefCounted.h" |
39 #include "wtf/RefPtr.h" | 40 #include "wtf/RefPtr.h" |
40 #include "wtf/text/CharacterNames.h" | 41 #include "wtf/text/CharacterNames.h" |
41 | 42 |
42 #include <hb.h> | 43 #include <hb.h> |
43 | 44 |
44 namespace blink { | 45 namespace blink { |
45 | 46 |
46 class FontPlatformData; | 47 class FontPlatformData; |
47 | 48 |
48 class HarfBuzzFace : public RefCounted<HarfBuzzFace> { | 49 class HarfBuzzFace : public RefCounted<HarfBuzzFace> { |
49 WTF_MAKE_NONCOPYABLE(HarfBuzzFace); | 50 WTF_MAKE_NONCOPYABLE(HarfBuzzFace); |
50 public: | 51 public: |
51 static const hb_tag_t vertTag; | 52 static const hb_tag_t vertTag; |
52 static const hb_tag_t vrt2Tag; | 53 static const hb_tag_t vrt2Tag; |
53 | 54 |
54 static PassRefPtr<HarfBuzzFace> create(FontPlatformData* platformData, uint6
4_t uniqueID) | 55 static PassRefPtr<HarfBuzzFace> create(FontPlatformData* platformData, uint6
4_t uniqueID) |
55 { | 56 { |
56 return adoptRef(new HarfBuzzFace(platformData, uniqueID)); | 57 return adoptRef(new HarfBuzzFace(platformData, uniqueID)); |
57 } | 58 } |
58 ~HarfBuzzFace(); | 59 ~HarfBuzzFace(); |
59 | 60 |
60 // In order to support the restricting effect of unicode-range optionally a | 61 // In order to support the restricting effect of unicode-range optionally a |
61 // range restriction can be passed in, which will restrict which glyphs we | 62 // range restriction can be passed in, which will restrict which glyphs we |
62 // return in the harfBuzzGetGlyph function. | 63 // return in the harfBuzzGetGlyph function. |
63 hb_font_t* createFont(unsigned rangeFrom = 0, unsigned rangeTo = kMaxCodepoi
nt) const; | 64 hb_font_t* createFont(PassRefPtr<UnicodeRangeSet> = nullptr) const; |
64 hb_face_t* face() const { return m_face; } | 65 hb_face_t* face() const { return m_face; } |
65 | 66 |
66 private: | 67 private: |
67 HarfBuzzFace(FontPlatformData*, uint64_t); | 68 HarfBuzzFace(FontPlatformData*, uint64_t); |
68 | 69 |
69 hb_face_t* createFace(); | 70 hb_face_t* createFace(); |
70 | 71 |
71 FontPlatformData* m_platformData; | 72 FontPlatformData* m_platformData; |
72 uint64_t m_uniqueID; | 73 uint64_t m_uniqueID; |
73 hb_face_t* m_face; | 74 hb_face_t* m_face; |
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84 static void deletePtr(hb_font_t* font) | 85 static void deletePtr(hb_font_t* font) |
85 { | 86 { |
86 if (font) | 87 if (font) |
87 hb_font_destroy(font); | 88 hb_font_destroy(font); |
88 } | 89 } |
89 }; | 90 }; |
90 | 91 |
91 } // namespace WTF | 92 } // namespace WTF |
92 | 93 |
93 #endif // HarfBuzzFace_h | 94 #endif // HarfBuzzFace_h |
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