| /* |
| * Copyright (c) 2011 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 "core/platform/graphics/FontCache.h" |
| |
| #include "core/platform/graphics/Font.h" |
| #include "core/platform/graphics/SimpleFontData.h" |
| #include "platform/fonts/FontDescription.h" |
| |
| #include "SkTypeface_android.h" |
| |
| namespace WebCore { |
| |
| static AtomicString getFamilyNameForCharacter(UChar32 c, UScriptCode script) |
| { |
| // This is a hack to use the preferred font for CJK scripts. |
| // FIXME: Use new Skia API once Android system supports per-family and per-script fallback fonts. |
| const char* locale; |
| switch (script) { |
| case USCRIPT_SIMPLIFIED_HAN: |
| locale = "zh-CN"; |
| break; |
| case USCRIPT_TRADITIONAL_HAN: |
| locale = "zh-TW"; |
| break; |
| case USCRIPT_KATAKANA_OR_HIRAGANA: |
| locale = "ja"; |
| break; |
| case USCRIPT_HANGUL: |
| locale = "ko"; |
| break; |
| default: |
| locale = 0; |
| break; |
| } |
| |
| SkString skiaFamilyName; |
| if (!SkGetFallbackFamilyNameForChar(c, locale, &skiaFamilyName) || skiaFamilyName.isEmpty()) |
| return AtomicString(); |
| return skiaFamilyName.c_str(); |
| } |
| |
| PassRefPtr<SimpleFontData> FontCache::getFontDataForCharacter(const Font& font, UChar32 c) |
| { |
| AtomicString familyName = getFamilyNameForCharacter(c, font.fontDescription().script()); |
| if (familyName.isEmpty()) |
| return 0; |
| return getFontResourceData(getFontResourcePlatformData(font.fontDescription(), familyName), DoNotRetain); |
| } |
| |
| // static |
| AtomicString FontCache::getGenericFamilyNameForScript(const AtomicString& familyName, UScriptCode script) |
| { |
| // This is a hack to use the preferred font for CJK scripts. |
| // FIXME: Use new Skia API once Android system supports per-family and per-script fallback fonts. |
| UChar32 examplerChar; |
| switch (script) { |
| case USCRIPT_SIMPLIFIED_HAN: |
| case USCRIPT_TRADITIONAL_HAN: |
| case USCRIPT_KATAKANA_OR_HIRAGANA: |
| examplerChar = 0x4E00; // A common character in Japanese and Chinese. |
| break; |
| case USCRIPT_HANGUL: |
| examplerChar = 0xAC00; |
| break; |
| default: |
| // For other scripts, use the default generic family mapping logic. |
| return familyName; |
| } |
| |
| return getFamilyNameForCharacter(examplerChar, script); |
| } |
| |
| } // namespace WebCore |