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1 /* | 1 /* |
2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
3 * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> | 3 * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * | 8 * |
9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 */ | 28 */ |
29 | 29 |
30 #include "config.h" | 30 #include "config.h" |
31 #include "core/platform/graphics/FontCache.h" | 31 #include "core/platform/graphics/FontCache.h" |
32 | 32 |
33 #include "FontFamilyNames.h" | 33 #include "FontFamilyNames.h" |
| 34 |
34 #include "RuntimeEnabledFeatures.h" | 35 #include "RuntimeEnabledFeatures.h" |
| 36 #include "core/platform/graphics/AlternateFontFamily.h" |
35 #include "core/platform/graphics/Font.h" | 37 #include "core/platform/graphics/Font.h" |
36 #include "core/platform/graphics/FontCacheKey.h" | 38 #include "core/platform/graphics/FontCacheKey.h" |
37 #include "core/platform/graphics/FontDescription.h" | 39 #include "core/platform/graphics/FontDescription.h" |
38 #include "core/platform/graphics/FontFallbackList.h" | 40 #include "core/platform/graphics/FontFallbackList.h" |
39 #include "core/platform/graphics/FontPlatformData.h" | 41 #include "core/platform/graphics/FontPlatformData.h" |
40 #include "core/platform/graphics/FontSelector.h" | 42 #include "core/platform/graphics/FontSelector.h" |
41 #include "core/platform/graphics/FontSmoothingMode.h" | 43 #include "core/platform/graphics/FontSmoothingMode.h" |
42 #include "core/platform/graphics/TextRenderingMode.h" | 44 #include "core/platform/graphics/TextRenderingMode.h" |
43 #include "core/platform/graphics/opentype/OpenTypeVerticalData.h" | 45 #include "core/platform/graphics/opentype/OpenTypeVerticalData.h" |
44 #include "wtf/HashMap.h" | 46 #include "wtf/HashMap.h" |
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61 FontCache::FontCache() | 63 FontCache::FontCache() |
62 : m_purgePreventCount(0) | 64 : m_purgePreventCount(0) |
63 { | 65 { |
64 } | 66 } |
65 #endif // !OS(WIN) || ENABLE(GDI_FONTS_ON_WINDOWS) | 67 #endif // !OS(WIN) || ENABLE(GDI_FONTS_ON_WINDOWS) |
66 | 68 |
67 typedef HashMap<FontCacheKey, OwnPtr<FontPlatformData>, FontCacheKeyHash, FontCa
cheKeyTraits> FontPlatformDataCache; | 69 typedef HashMap<FontCacheKey, OwnPtr<FontPlatformData>, FontCacheKeyHash, FontCa
cheKeyTraits> FontPlatformDataCache; |
68 | 70 |
69 static FontPlatformDataCache* gFontPlatformDataCache = 0; | 71 static FontPlatformDataCache* gFontPlatformDataCache = 0; |
70 | 72 |
71 // We currently do not support bitmap fonts on windows (with GDI_FONTS_ON_WINDOW
S enabled). | |
72 // Instead of trying to construct a bitmap font and then going down the fallback
path map | |
73 // certain common bitmap fonts to their truetype equivalent up front. This also
allows the | |
74 // GDI_FONTS_ON_WINDOWS disabled code path to match our current behavior. | |
75 static const AtomicString& alternateFamilyNameAvoidingBitmapFonts(const AtomicSt
ring& familyName) | |
76 { | |
77 #if OS(WIN) | |
78 // On Windows, 'Courier New' (truetype font) is always present and | |
79 // 'Courier' is a bitmap font. On Mac on the other hand 'Courier' is | |
80 // a truetype font. Thus pages asking for Courier are better of | |
81 // using 'Courier New' on windows. | |
82 DEFINE_STATIC_LOCAL(AtomicString, courier, ("Courier", AtomicString::Constru
ctFromLiteral)); | |
83 DEFINE_STATIC_LOCAL(AtomicString, courierNew, ("Courier New", AtomicString::
ConstructFromLiteral)); | |
84 if (equalIgnoringCase(familyName, courier)) | |
85 return courierNew; | |
86 | |
87 // Alias 'MS Sans Serif' (bitmap font) -> 'Microsoft Sans Serif' | |
88 // (truetype font). | |
89 DEFINE_STATIC_LOCAL(AtomicString, msSans, ("MS Sans Serif", AtomicString::Co
nstructFromLiteral)); | |
90 DEFINE_STATIC_LOCAL(AtomicString, microsoftSans, ("Microsoft Sans Serif", At
omicString::ConstructFromLiteral)); | |
91 if (equalIgnoringCase(familyName, msSans)) | |
92 return microsoftSans; | |
93 | |
94 // Alias 'MS Serif' (bitmap) -> 'Times New Roman' (truetype font). | |
95 // There's no 'Microsoft Sans Serif-equivalent' for Serif. | |
96 DEFINE_STATIC_LOCAL(AtomicString, msSerif, ("MS Serif", AtomicString::Constr
uctFromLiteral)); | |
97 DEFINE_STATIC_LOCAL(AtomicString, timesNewRoman, ("Times New Roman", AtomicS
tring::ConstructFromLiteral)); | |
98 if (equalIgnoringCase(familyName, msSerif)) | |
99 return timesNewRoman; | |
100 #endif | |
101 | |
102 return emptyAtom; | |
103 } | |
104 | |
105 static const AtomicString& alternateFamilyName(const AtomicString& familyName) | |
106 { | |
107 // Alias Courier <-> Courier New | |
108 DEFINE_STATIC_LOCAL(AtomicString, courier, ("Courier", AtomicString::Constru
ctFromLiteral)); | |
109 DEFINE_STATIC_LOCAL(AtomicString, courierNew, ("Courier New", AtomicString::
ConstructFromLiteral)); | |
110 if (equalIgnoringCase(familyName, courier)) | |
111 return courierNew; | |
112 #if !OS(WIN) | |
113 // On Windows, Courier New (truetype font) is always present and | |
114 // Courier is a bitmap font. So, we don't want to map Courier New to | |
115 // Courier. | |
116 if (equalIgnoringCase(familyName, courierNew)) | |
117 return courier; | |
118 #endif | |
119 | |
120 // Alias Times and Times New Roman. | |
121 DEFINE_STATIC_LOCAL(AtomicString, times, ("Times", AtomicString::ConstructFr
omLiteral)); | |
122 DEFINE_STATIC_LOCAL(AtomicString, timesNewRoman, ("Times New Roman", AtomicS
tring::ConstructFromLiteral)); | |
123 if (equalIgnoringCase(familyName, times)) | |
124 return timesNewRoman; | |
125 if (equalIgnoringCase(familyName, timesNewRoman)) | |
126 return times; | |
127 | |
128 // Alias Arial and Helvetica | |
129 DEFINE_STATIC_LOCAL(AtomicString, arial, ("Arial", AtomicString::ConstructFr
omLiteral)); | |
130 DEFINE_STATIC_LOCAL(AtomicString, helvetica, ("Helvetica", AtomicString::Con
structFromLiteral)); | |
131 if (equalIgnoringCase(familyName, arial)) | |
132 return helvetica; | |
133 if (equalIgnoringCase(familyName, helvetica)) | |
134 return arial; | |
135 | |
136 return emptyAtom; | |
137 } | |
138 | |
139 FontPlatformData* FontCache::getFontResourcePlatformData(const FontDescription&
fontDescription, | 73 FontPlatformData* FontCache::getFontResourcePlatformData(const FontDescription&
fontDescription, |
140 const AtomicString& passedFamilyName, bool checkingAlternateName) | 74 const AtomicString& passedFamilyName, bool checkingAlternateName) |
141 { | 75 { |
142 #if OS(WIN) && ENABLE(OPENTYPE_VERTICAL) | 76 #if OS(WIN) && ENABLE(OPENTYPE_VERTICAL) |
143 // Leading "@" in the font name enables Windows vertical flow flag for the f
ont. | 77 // Leading "@" in the font name enables Windows vertical flow flag for the f
ont. |
144 // Because we do vertical flow by ourselves, we don't want to use the Window
s feature. | 78 // Because we do vertical flow by ourselves, we don't want to use the Window
s feature. |
145 // IE disregards "@" regardless of the orientatoin, so we follow the behavio
r. | 79 // IE disregards "@" regardless of the orientatoin, so we follow the behavio
r. |
146 const AtomicString& familyName = (passedFamilyName.isEmpty() || passedFamily
Name[0] != '@') ? | 80 const AtomicString& familyName = (passedFamilyName.isEmpty() || passedFamily
Name[0] != '@') ? |
147 passedFamilyName : AtomicString(passedFamilyName.impl()->substring(1)); | 81 passedFamilyName : AtomicString(passedFamilyName.impl()->substring(1)); |
148 #else | 82 #else |
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518 for (HashSet<FontSelector*>::iterator it = gClients->begin(); it != end; ++i
t) | 452 for (HashSet<FontSelector*>::iterator it = gClients->begin(); it != end; ++i
t) |
519 clients.append(*it); | 453 clients.append(*it); |
520 | 454 |
521 ASSERT(numClients == clients.size()); | 455 ASSERT(numClients == clients.size()); |
522 for (size_t i = 0; i < numClients; ++i) | 456 for (size_t i = 0; i < numClients; ++i) |
523 clients[i]->fontCacheInvalidated(); | 457 clients[i]->fontCacheInvalidated(); |
524 | 458 |
525 purgeInactiveFontData(); | 459 purgeInactiveFontData(); |
526 } | 460 } |
527 | 461 |
528 const FontPlatformData* FontCache::getFallbackFontData(const FontDescription& de
scription) | |
529 { | |
530 DEFINE_STATIC_LOCAL(const AtomicString, sansStr, ("Sans", AtomicString::Cons
tructFromLiteral)); | |
531 DEFINE_STATIC_LOCAL(const AtomicString, serifStr, ("Serif", AtomicString::Co
nstructFromLiteral)); | |
532 DEFINE_STATIC_LOCAL(const AtomicString, monospaceStr, ("Monospace", AtomicSt
ring::ConstructFromLiteral)); | |
533 | |
534 FontPlatformData* fontPlatformData = 0; | |
535 switch (description.genericFamily()) { | |
536 case FontDescription::SerifFamily: | |
537 fontPlatformData = getFontResourcePlatformData(description, serifStr); | |
538 break; | |
539 case FontDescription::MonospaceFamily: | |
540 fontPlatformData = getFontResourcePlatformData(description, monospaceStr
); | |
541 break; | |
542 case FontDescription::SansSerifFamily: | |
543 default: | |
544 fontPlatformData = getFontResourcePlatformData(description, sansStr); | |
545 break; | |
546 } | |
547 | |
548 return fontPlatformData; | |
549 } | |
550 | |
551 } // namespace WebCore | 462 } // namespace WebCore |
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