| /* |
| * Copyright (c) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #include "SkFontMgr.h" |
| #include "SkTypeface.h" |
| #include "platform/fonts/AlternateFontFamily.h" |
| #include "core/platform/graphics/Font.h" |
| #include "core/platform/graphics/FontCache.h" |
| #include "core/platform/graphics/SimpleFontData.h" |
| #include "platform/NotImplemented.h" |
| #include "platform/fonts/FontDescription.h" |
| #include "wtf/Assertions.h" |
| #include "wtf/text/AtomicString.h" |
| #include "wtf/text/CString.h" |
| #include <unicode/locid.h> |
| |
| namespace WebCore { |
| |
| void FontCache::platformInit() |
| { |
| } |
| |
| #if !OS(WIN) && !OS(ANDROID) |
| PassRefPtr<SimpleFontData> FontCache::getFontDataForCharacter(const Font& font, UChar32 c) |
| { |
| icu::Locale locale = icu::Locale::getDefault(); |
| FontCache::SimpleFontFamily family; |
| FontCache::getFontFamilyForCharacter(c, locale.getLanguage(), &family); |
| if (family.name.isEmpty()) |
| return 0; |
| |
| AtomicString atomicFamily(family.name); |
| // Changes weight and/or italic of given FontDescription depends on |
| // the result of fontconfig so that keeping the correct font mapping |
| // of the given character. See http://crbug.com/32109 for details. |
| bool shouldSetFakeBold = false; |
| bool shouldSetFakeItalic = false; |
| FontDescription description(font.fontDescription()); |
| if (family.isBold && description.weight() < FontWeightBold) |
| description.setWeight(FontWeightBold); |
| if (!family.isBold && description.weight() >= FontWeightBold) { |
| shouldSetFakeBold = true; |
| description.setWeight(FontWeightNormal); |
| } |
| if (family.isItalic && description.italic() == FontItalicOff) |
| description.setItalic(FontItalicOn); |
| if (!family.isItalic && description.italic() == FontItalicOn) { |
| shouldSetFakeItalic = true; |
| description.setItalic(FontItalicOff); |
| } |
| |
| FontPlatformData* substitutePlatformData = getFontResourcePlatformData(description, atomicFamily); |
| if (!substitutePlatformData) |
| return 0; |
| FontPlatformData platformData = FontPlatformData(*substitutePlatformData); |
| platformData.setFakeBold(shouldSetFakeBold); |
| platformData.setFakeItalic(shouldSetFakeItalic); |
| return getFontResourceData(&platformData, DoNotRetain); |
| } |
| |
| #endif // !OS(WINDOWNS) && !OS(ANDROID) |
| |
| PassRefPtr<SimpleFontData> FontCache::getLastResortFallbackFont(const FontDescription& description, ShouldRetain shouldRetain) |
| { |
| const AtomicString fallbackFontFamily = getFallbackFontFamily(description); |
| const FontPlatformData* fontPlatformData = 0; |
| if (!fallbackFontFamily.isEmpty()) |
| fontPlatformData = getFontResourcePlatformData(description, fallbackFontFamily); |
| |
| if (!fontPlatformData) { |
| // we should at least have Arial; this is the SkFontHost_fontconfig last resort fallback |
| DEFINE_STATIC_LOCAL(const AtomicString, arialStr, ("Arial", AtomicString::ConstructFromLiteral)); |
| fontPlatformData = getFontResourcePlatformData(description, arialStr); |
| } |
| |
| ASSERT(fontPlatformData); |
| return getFontResourceData(fontPlatformData, shouldRetain); |
| } |
| |
| PassRefPtr<SkTypeface> FontCache::createTypeface(const FontDescription& fontDescription, const AtomicString& family, CString& name) |
| { |
| name = ""; |
| |
| // If we're creating a fallback font (e.g. "-webkit-monospace"), convert the name into |
| // the fallback name (like "monospace") that fontconfig understands. |
| if (!family.length() || family.startsWith("-webkit-")) { |
| static const struct { |
| FontDescription::GenericFamilyType mType; |
| const char* mName; |
| } fontDescriptions[] = { |
| { FontDescription::SerifFamily, "serif" }, |
| { FontDescription::SansSerifFamily, "sans-serif" }, |
| { FontDescription::MonospaceFamily, "monospace" }, |
| { FontDescription::CursiveFamily, "cursive" }, |
| { FontDescription::FantasyFamily, "fantasy" } |
| }; |
| |
| FontDescription::GenericFamilyType type = fontDescription.genericFamily(); |
| for (unsigned i = 0; i < SK_ARRAY_COUNT(fontDescriptions); i++) { |
| if (type == fontDescriptions[i].mType) { |
| name = fontDescriptions[i].mName; |
| break; |
| } |
| } |
| } else { |
| // convert the name to utf8 |
| name = family.string().utf8(); |
| } |
| |
| int style = SkTypeface::kNormal; |
| if (fontDescription.weight() >= FontWeightBold) |
| style |= SkTypeface::kBold; |
| if (fontDescription.italic()) |
| style |= SkTypeface::kItalic; |
| |
| // FIXME: Use SkFontStyle and matchFamilyStyle instead of legacyCreateTypeface. |
| #if OS(WIN) && !ENABLE(GDI_FONTS_ON_WINDOWS) |
| if (m_fontManager) |
| return adoptRef(m_fontManager->legacyCreateTypeface(name.data(), style)); |
| #endif |
| |
| return adoptRef(SkTypeface::CreateFromName(name.data(), static_cast<SkTypeface::Style>(style))); |
| } |
| |
| #if !OS(WIN) |
| FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family, float fontSize) |
| { |
| CString name; |
| RefPtr<SkTypeface> tf(createTypeface(fontDescription, family, name)); |
| if (!tf) |
| return 0; |
| |
| FontPlatformData* result = new FontPlatformData(tf, |
| name.data(), |
| fontSize, |
| (fontDescription.weight() >= FontWeightBold && !tf->isBold()) || fontDescription.isSyntheticBold(), |
| (fontDescription.italic() && !tf->isItalic()) || fontDescription.isSyntheticItalic(), |
| fontDescription.orientation(), |
| fontDescription.useSubpixelPositioning()); |
| return result; |
| } |
| #endif // !OS(WINDOWNS) |
| |
| } // namespace WebCore |