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109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
/*
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* Copyright (C) 2008 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/core/css/CSSSegmentedFontFace.h"
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#include "gen/sky/platform/RuntimeEnabledFeatures.h"
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#include "sky/engine/core/css/CSSFontSelector.h"
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#include "sky/engine/platform/fonts/FontCache.h"
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#include "sky/engine/platform/fonts/FontDescription.h"
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#include "sky/engine/platform/fonts/FontFaceCreationParams.h"
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#include "sky/engine/platform/fonts/SegmentedFontData.h"
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#include "sky/engine/platform/fonts/SimpleFontData.h"
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namespace blink {
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CSSSegmentedFontFace::CSSSegmentedFontFace(CSSFontSelector* fontSelector, FontTraits traits)
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: m_fontSelector(fontSelector)
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, m_traits(traits)
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{
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}
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CSSSegmentedFontFace::~CSSSegmentedFontFace()
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{
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pruneTable();
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}
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void CSSSegmentedFontFace::pruneTable()
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{
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// Make sure the glyph page tree prunes out all uses of this custom font.
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if (m_fontDataTable.isEmpty())
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return;
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m_fontDataTable.clear();
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}
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bool CSSSegmentedFontFace::isValid() const
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{
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return false;
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}
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PassRefPtr<FontData> CSSSegmentedFontFace::getFontData(const FontDescription& fontDescription)
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{
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if (!isValid())
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return nullptr;
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FontTraits desiredTraits = fontDescription.traits();
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FontCacheKey key = fontDescription.cacheKey(FontFaceCreationParams(), desiredTraits);
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RefPtr<SegmentedFontData>& fontData = m_fontDataTable.add(key.hash(), nullptr).storedValue->value;
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if (fontData && fontData->numRanges())
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return fontData; // No release, we have a reference to an object in the cache which should retain the ref count it has.
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if (!fontData)
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fontData = SegmentedFontData::create();
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FontDescription requestedFontDescription(fontDescription);
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requestedFontDescription.setTraits(m_traits);
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requestedFontDescription.setSyntheticBold(m_traits.weight() < FontWeight600 && desiredTraits.weight() >= FontWeight600);
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requestedFontDescription.setSyntheticItalic(m_traits.style() == FontStyleNormal && desiredTraits.style() == FontStyleItalic);
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if (fontData->numRanges())
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return fontData; // No release, we have a reference to an object in the cache which should retain the ref count it has.
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return nullptr;
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}
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bool CSSSegmentedFontFace::isLoading() const
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{
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return false;
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}
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bool CSSSegmentedFontFace::isLoaded() const
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{
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return true;
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}
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void CSSSegmentedFontFace::willUseFontData(const FontDescription& fontDescription, UChar32 character)
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{
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}
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bool CSSSegmentedFontFace::checkFont(const String& text) const
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{
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return true;
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}
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}
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