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Side by Side Diff: sky/engine/platform/fonts/FontPlatformData.h

Issue 717343002: Replace (unused) FontPlatformData.* with harfbuzz variants. (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 6 years, 1 month ago
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1 /* 1 /*
2 * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. 2 * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved.
3 * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
4 * Copyright (C) 2007 Holger Hans Peter Freyther
5 * Copyright (C) 2007 Pioneer Research Center USA, Inc.
6 * Copyright (C) 2010, 2011 Brent Fulgham <bfulgham@webkit.org>
7 * 3 *
8 * This library is free software; you can redistribute it and/or 4 * Redistribution and use in source and binary forms, with or without
9 * modify it under the terms of the GNU Library General Public 5 * modification, are permitted provided that the following conditions are
10 * License as published by the Free Software Foundation; either 6 * met:
11 * version 2 of the License, or (at your option) any later version.
12 * 7 *
13 * This library is distributed in the hope that it will be useful, 8 * * Redistributions of source code must retain the above copyright
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * notice, this list of conditions and the following disclaimer.
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 10 * * Redistributions in binary form must reproduce the above
16 * Library General Public License for more details. 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 * 17 *
18 * You should have received a copy of the GNU Library General Public License 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * along with this library; see the file COPYING.LIB. If not, write to 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * Boston, MA 02110-1301, USA. 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * 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.
23 */ 29 */
24 30
25 // FIXME: This is temporary until mac switch to using FontPlatformDataHarfBuzz.h and we merge it with this file. 31 #ifndef FontPlatformDataHarfBuzz_h
26 #include "platform/fonts/harfbuzz/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 bool fontContainsCharacter(UChar32 character);
86
87 #if ENABLE(OPENTYPE_VERTICAL)
88 PassRefPtr<OpenTypeVerticalData> verticalData() const;
89 PassRefPtr<SharedBuffer> openTypeTable(uint32_t table) const;
90 #endif
91
92 #ifndef NDEBUG
93 String description() const;
94 #endif
95
96 // The returned styles are all actual styles without FontRenderStyle::NoPref erence.
97 const FontRenderStyle& fontRenderStyle() const { return m_style; }
98 void setupPaint(SkPaint*, GraphicsContext* = 0) const;
99
100 static void setHinting(SkPaint::Hinting);
101 static void setAutoHint(bool);
102 static void setUseBitmaps(bool);
103 static void setAntiAlias(bool);
104 static void setSubpixelRendering(bool);
105
106 private:
107 bool static defaultUseSubpixelPositioning();
108 void querySystemForRenderStyle(bool useSkiaSubpixelPositioning);
109
110 RefPtr<SkTypeface> m_typeface;
111 CString m_family;
112 float m_textSize;
113 bool m_syntheticBold;
114 bool m_syntheticItalic;
115 FontOrientation m_orientation;
116 FontRenderStyle m_style;
117 mutable RefPtr<HarfBuzzFace> m_harfBuzzFace;
118 bool m_isHashTableDeletedValue;
119 };
120
121 } // namespace blink
122
123 #endif // ifdef FontPlatformDataHarfBuzz_h
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