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| 1 /* |
| 2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> |
| 4 * Copyright (C) 2013 Google, Inc. All rights reserved. |
| 5 * |
| 6 * Redistribution and use in source and binary forms, with or without |
| 7 * modification, are permitted provided that the following conditions |
| 8 * are met: |
| 9 * |
| 10 * 1. Redistributions of source code must retain the above copyright |
| 11 * notice, this list of conditions and the following disclaimer. |
| 12 * 2. Redistributions in binary form must reproduce the above copyright |
| 13 * notice, this list of conditions and the following disclaimer in the |
| 14 * documentation and/or other materials provided with the distribution. |
| 15 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| 16 * its contributors may be used to endorse or promote products derived |
| 17 * from this software without specific prior written permission. |
| 18 * |
| 19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ |
| 30 |
| 31 #ifndef AlternateFontFamily_h |
| 32 #define AlternateFontFamily_h |
| 33 |
| 34 #include "core/platform/graphics/FontDescription.h" |
| 35 #include "wtf/text/AtomicString.h" |
| 36 |
| 37 namespace WebCore { |
| 38 |
| 39 // We currently do not support bitmap fonts on windows (with GDI_FONTS_ON_WINDOW
S enabled). |
| 40 // Instead of trying to construct a bitmap font and then going down the fallback
path map |
| 41 // certain common bitmap fonts to their truetype equivalent up front. This also
allows the |
| 42 // GDI_FONTS_ON_WINDOWS disabled code path to match our current behavior. |
| 43 static const AtomicString& alternateFamilyNameAvoidingBitmapFonts(const AtomicSt
ring& familyName) |
| 44 { |
| 45 #if OS(WIN) |
| 46 // On Windows, 'Courier New' (truetype font) is always present and |
| 47 // 'Courier' is a bitmap font. On Mac on the other hand 'Courier' is |
| 48 // a truetype font. Thus pages asking for Courier are better of |
| 49 // using 'Courier New' on windows. |
| 50 DEFINE_STATIC_LOCAL(AtomicString, courier, ("Courier", AtomicString::Constru
ctFromLiteral)); |
| 51 DEFINE_STATIC_LOCAL(AtomicString, courierNew, ("Courier New", AtomicString::
ConstructFromLiteral)); |
| 52 if (equalIgnoringCase(familyName, courier)) |
| 53 return courierNew; |
| 54 |
| 55 // Alias 'MS Sans Serif' (bitmap font) -> 'Microsoft Sans Serif' |
| 56 // (truetype font). |
| 57 DEFINE_STATIC_LOCAL(AtomicString, msSans, ("MS Sans Serif", AtomicString::Co
nstructFromLiteral)); |
| 58 DEFINE_STATIC_LOCAL(AtomicString, microsoftSans, ("Microsoft Sans Serif", At
omicString::ConstructFromLiteral)); |
| 59 if (equalIgnoringCase(familyName, msSans)) |
| 60 return microsoftSans; |
| 61 |
| 62 // Alias 'MS Serif' (bitmap) -> 'Times New Roman' (truetype font). |
| 63 // There's no 'Microsoft Sans Serif-equivalent' for Serif. |
| 64 DEFINE_STATIC_LOCAL(AtomicString, msSerif, ("MS Serif", AtomicString::Constr
uctFromLiteral)); |
| 65 DEFINE_STATIC_LOCAL(AtomicString, timesNewRoman, ("Times New Roman", AtomicS
tring::ConstructFromLiteral)); |
| 66 if (equalIgnoringCase(familyName, msSerif)) |
| 67 return timesNewRoman; |
| 68 #endif |
| 69 |
| 70 return emptyAtom; |
| 71 } |
| 72 |
| 73 static const AtomicString& alternateFamilyName(const AtomicString& familyName) |
| 74 { |
| 75 // Alias Courier <-> Courier New |
| 76 DEFINE_STATIC_LOCAL(AtomicString, courier, ("Courier", AtomicString::Constru
ctFromLiteral)); |
| 77 DEFINE_STATIC_LOCAL(AtomicString, courierNew, ("Courier New", AtomicString::
ConstructFromLiteral)); |
| 78 if (equalIgnoringCase(familyName, courier)) |
| 79 return courierNew; |
| 80 #if !OS(WIN) |
| 81 // On Windows, Courier New (truetype font) is always present and |
| 82 // Courier is a bitmap font. So, we don't want to map Courier New to |
| 83 // Courier. |
| 84 if (equalIgnoringCase(familyName, courierNew)) |
| 85 return courier; |
| 86 #endif |
| 87 |
| 88 // Alias Times and Times New Roman. |
| 89 DEFINE_STATIC_LOCAL(AtomicString, times, ("Times", AtomicString::ConstructFr
omLiteral)); |
| 90 DEFINE_STATIC_LOCAL(AtomicString, timesNewRoman, ("Times New Roman", AtomicS
tring::ConstructFromLiteral)); |
| 91 if (equalIgnoringCase(familyName, times)) |
| 92 return timesNewRoman; |
| 93 if (equalIgnoringCase(familyName, timesNewRoman)) |
| 94 return times; |
| 95 |
| 96 // Alias Arial and Helvetica |
| 97 DEFINE_STATIC_LOCAL(AtomicString, arial, ("Arial", AtomicString::ConstructFr
omLiteral)); |
| 98 DEFINE_STATIC_LOCAL(AtomicString, helvetica, ("Helvetica", AtomicString::Con
structFromLiteral)); |
| 99 if (equalIgnoringCase(familyName, arial)) |
| 100 return helvetica; |
| 101 if (equalIgnoringCase(familyName, helvetica)) |
| 102 return arial; |
| 103 |
| 104 return emptyAtom; |
| 105 } |
| 106 |
| 107 |
| 108 static const AtomicString getFallbackFontFamily(const FontDescription& descripti
on) |
| 109 { |
| 110 DEFINE_STATIC_LOCAL(const AtomicString, sansStr, ("Sans", AtomicString::Cons
tructFromLiteral)); |
| 111 DEFINE_STATIC_LOCAL(const AtomicString, serifStr, ("Serif", AtomicString::Co
nstructFromLiteral)); |
| 112 DEFINE_STATIC_LOCAL(const AtomicString, monospaceStr, ("Monospace", AtomicSt
ring::ConstructFromLiteral)); |
| 113 |
| 114 switch (description.genericFamily()) { |
| 115 case FontDescription::SerifFamily: |
| 116 return serifStr; |
| 117 case FontDescription::MonospaceFamily: |
| 118 return monospaceStr; |
| 119 case FontDescription::SansSerifFamily: |
| 120 return sansStr; |
| 121 default: |
| 122 return AtomicString(); |
| 123 } |
| 124 } |
| 125 |
| 126 } // namespace WebCore |
| 127 |
| 128 #endif // AlternateFontFamily_h |
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