Source/platform/fonts/harfbuzz/FontPlatformDataHarfBuzz.h - Issue 559433002: Merge FontPlatformDataHarfBuzz and FontPlatformData headers

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Issue 559433002: Merge FontPlatformDataHarfBuzz and FontPlatformData headers (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 6 years, 3 months ago

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1 /*

2 * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are

6 * met:

7 *

8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above

11 * copyright notice, this list of conditions and the following disclaimer

12 * in the documentation and/or other materials provided with the

13 * distribution.

14 * * Neither the name of Google Inc. nor the names of its

15 * contributors may be used to endorse or promote products derived from

16 * this software without specific prior written permission.

17 *

18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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.

29 */

30

31 #ifndef FontPlatformDataHarfBuzz_h

32 #define FontPlatformDataHarfBuzz_h

33

34 #include "SkPaint.h"

35 #include "platform/SharedBuffer.h"

36 #include "platform/fonts/FontDescription.h"

37 #include "platform/fonts/FontOrientation.h"

38 #include "platform/fonts/FontRenderStyle.h"

39 #include "platform/fonts/opentype/OpenTypeVerticalData.h"

40 #include "wtf/Forward.h"

41 #include "wtf/HashTableDeletedValueType.h"

42 #include "wtf/RefPtr.h"

43 #include "wtf/text/CString.h"

44 #include "wtf/text/StringImpl.h"

45

46 class SkTypeface;

47 typedef uint32_t SkFontID;

48

49 namespace blink {

50

51 class GraphicsContext;

52 class HarfBuzzFace;

53

54 class PLATFORM_EXPORT FontPlatformData {

55 public:

56 // Used for deleted values in the font cache's hash tables. The hash table

57 // will create us with this structure, and it will compare other values

58 // to this "Deleted" one. It expects the Deleted one to be differentiable

59 // from the 0 one (created with the empty constructor), so we can't just

60 // set everything to 0.

61 FontPlatformData(WTF::HashTableDeletedValueType);

62 FontPlatformData();

63 FontPlatformData(float textSize, bool syntheticBold, bool syntheticItalic);

64 FontPlatformData(const FontPlatformData&);

65 FontPlatformData(PassRefPtr<SkTypeface>, const char* name, float textSize, b ool syntheticBold, bool syntheticItalic, FontOrientation = Horizontal, bool subp ixelTextPosition = defaultUseSubpixelPositioning());

66 FontPlatformData(const FontPlatformData& src, float textSize);

67 ~FontPlatformData();

68

69 String fontFamilyName() const;

70 float size() const { return m_textSize; }

71 bool isFixedPitch() const;

72

73 SkTypeface* typeface() const { return m_typeface.get(); }

74 HarfBuzzFace* harfBuzzFace() const;

75 SkFontID uniqueID() const;

76 unsigned hash() const;

77

78 FontOrientation orientation() const { return m_orientation; }

79 void setOrientation(FontOrientation orientation) { m_orientation = orientati on; }

80 void setSyntheticBold(bool syntheticBold) { m_syntheticBold = syntheticBold; }

81 void setSyntheticItalic(bool syntheticItalic) { m_syntheticItalic = syntheti cItalic; }

82 bool operator==(const FontPlatformData&) const;

83 FontPlatformData& operator=(const FontPlatformData&);

84 bool isHashTableDeletedValue() const { return m_isHashTableDeletedValue; }

85 #if OS(WIN)

86 void setMinSizeForAntiAlias(unsigned size) { m_minSizeForAntiAlias = size; }

87 unsigned minSizeForAntiAlias() const { return m_minSizeForAntiAlias; }

88 void setMinSizeForSubpixel(float size) { m_minSizeForSubpixel = size; }

89 float minSizeForSubpixel() const { return m_minSizeForSubpixel; }

90 void setHinting(SkPaint::Hinting style)

91 {

92 m_style.useAutoHint = 0;

93 m_style.hintStyle = style;

94 }

95 #endif

96 bool fontContainsCharacter(UChar32 character);

97

98 #if ENABLE(OPENTYPE_VERTICAL)

99 PassRefPtr<OpenTypeVerticalData> verticalData() const;

100 PassRefPtr<SharedBuffer> openTypeTable(uint32_t table) const;

101 #endif

102

103 #ifndef NDEBUG

104 String description() const;

105 #endif

106

107 // The returned styles are all actual styles without FontRenderStyle::NoPref erence.

108 const FontRenderStyle& fontRenderStyle() const { return m_style; }

109 void setupPaint(SkPaint, GraphicsContext = 0) const;

110

111 #if OS(WIN)

112 int paintTextFlags() const { return m_paintTextFlags; }

113 #else

114 static void setHinting(SkPaint::Hinting);

115 static void setAutoHint(bool);

116 static void setUseBitmaps(bool);

117 static void setAntiAlias(bool);

118 static void setSubpixelRendering(bool);

119 #endif

120

121 private:

122 bool static defaultUseSubpixelPositioning();

123 void querySystemForRenderStyle(bool useSkiaSubpixelPositioning);

124

125 RefPtr<SkTypeface> m_typeface;

126 #if !OS(WIN)

127 CString m_family;

128 #endif

129 float m_textSize;

130 bool m_syntheticBold;

131 bool m_syntheticItalic;

132 FontOrientation m_orientation;

133 FontRenderStyle m_style;

134 mutable RefPtr<HarfBuzzFace> m_harfBuzzFace;

135 bool m_isHashTableDeletedValue;

136 #if OS(WIN)

137 int m_paintTextFlags;

138 bool m_useSubpixelPositioning;

139 unsigned m_minSizeForAntiAlias;

140 float m_minSizeForSubpixel;

141 #endif

142 };

143

144 } // namespace blink

145

146 #endif // ifdef FontPlatformDataHarfBuzz_h

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