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105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
/*
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* Copyright (C) 2008, 2009 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 "flutter/sky/engine/platform/fonts/SegmentedFontData.h"
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#include "flutter/sky/engine/platform/fonts/SimpleFontData.h"
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#include "flutter/sky/engine/wtf/Assertions.h"
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#include "flutter/sky/engine/wtf/text/WTFString.h"
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namespace blink {
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SegmentedFontData::~SegmentedFontData() {
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GlyphPageTreeNode::pruneTreeCustomFontData(this);
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}
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const SimpleFontData* SegmentedFontData::fontDataForCharacter(UChar32 c) const {
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Vector<FontDataRange>::const_iterator end = m_ranges.end();
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for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end;
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++it) {
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if (it->from() <= c && it->to() >= c)
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return it->fontData().get();
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}
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return m_ranges[0].fontData().get();
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}
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bool SegmentedFontData::containsCharacter(UChar32 c) const {
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Vector<FontDataRange>::const_iterator end = m_ranges.end();
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for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end;
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++it) {
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if (c >= it->from() && c <= it->to())
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return true;
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}
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return false;
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}
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bool SegmentedFontData::isCustomFont() const {
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// All segmented fonts are custom fonts.
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return true;
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}
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bool SegmentedFontData::isLoading() const {
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Vector<FontDataRange>::const_iterator end = m_ranges.end();
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for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end;
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++it) {
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if (it->fontData()->isLoading())
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return true;
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}
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return false;
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}
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// Returns true if any of the sub fonts are loadingFallback.
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bool SegmentedFontData::isLoadingFallback() const {
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Vector<FontDataRange>::const_iterator end = m_ranges.end();
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for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end;
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++it) {
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if (it->fontData()->isLoadingFallback())
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return true;
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}
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return false;
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}
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bool SegmentedFontData::isSegmented() const {
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return true;
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}
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bool SegmentedFontData::shouldSkipDrawing() const {
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Vector<FontDataRange>::const_iterator end = m_ranges.end();
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for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end;
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++it) {
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if (it->fontData()->shouldSkipDrawing())
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return true;
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}
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return false;
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}
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#ifndef NDEBUG
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String SegmentedFontData::description() const {
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return "[segmented font]";
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}
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#endif
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} // namespace blink
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