Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/skia/FontCacheSkia.cpp

-/*
- * 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/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::platformFallbackForCharacter(const FontDescription& fontDescription, UChar32 c, const SimpleFontData*, bool)
-{
-    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(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 = getFontPlatformData(description, atomicFamily);
-    if (!substitutePlatformData)
-        return 0;
-    FontPlatformData platformData = FontPlatformData(*substitutePlatformData);
-    platformData.setFakeBold(shouldSetFakeBold);
-    platformData.setFakeItalic(shouldSetFakeItalic);
-    return fontDataFromFontPlatformData(&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 = getFontPlatformData(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 = getFontPlatformData(description, arialStr);
-    }
-
-    ASSERT(fontPlatformData);
-    return fontDataFromFontPlatformData(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