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93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/*
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* Copyright (c) 2012, Google 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 are
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* met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY 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 "config.h"
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#include "platform/LengthBox.h"
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namespace blink {
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const Length& LengthBox::logicalLeft(WritingMode writingMode) const
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{
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return isHorizontalWritingMode(writingMode) ? m_left : m_top;
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}
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const Length& LengthBox::logicalRight(WritingMode writingMode) const
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{
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return isHorizontalWritingMode(writingMode) ? m_right : m_bottom;
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}
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const Length& LengthBox::before(WritingMode writingMode) const
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{
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switch (writingMode) {
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case TopToBottomWritingMode:
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return m_top;
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case BottomToTopWritingMode:
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return m_bottom;
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case LeftToRightWritingMode:
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return m_left;
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case RightToLeftWritingMode:
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return m_right;
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}
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ASSERT_NOT_REACHED();
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return m_top;
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}
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const Length& LengthBox::after(WritingMode writingMode) const
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{
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switch (writingMode) {
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case TopToBottomWritingMode:
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return m_bottom;
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case BottomToTopWritingMode:
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return m_top;
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case LeftToRightWritingMode:
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return m_right;
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case RightToLeftWritingMode:
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return m_left;
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}
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ASSERT_NOT_REACHED();
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return m_bottom;
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}
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const Length& LengthBox::start(WritingMode writingMode, TextDirection direction) const
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{
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if (isHorizontalWritingMode(writingMode))
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return isLeftToRightDirection(direction) ? m_left : m_right;
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return isLeftToRightDirection(direction) ? m_top : m_bottom;
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}
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const Length& LengthBox::end(WritingMode writingMode, TextDirection direction) const
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{
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if (isHorizontalWritingMode(writingMode))
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return isLeftToRightDirection(direction) ? m_right : m_left;
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return isLeftToRightDirection(direction) ? m_bottom : m_top;
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}
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} // namespace blink
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