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/*
* Copyright (c) 2012, 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 "LayoutBoxExtent.h"
namespace WebCore {
LayoutUnit LayoutBoxExtent::logicalTop(WritingMode writingMode) const
{
return isHorizontalWritingMode(writingMode) ? m_top : m_left;
}
LayoutUnit LayoutBoxExtent::logicalBottom(WritingMode writingMode) const
{
return isHorizontalWritingMode(writingMode) ? m_bottom : m_right;
}
LayoutUnit LayoutBoxExtent::logicalLeft(WritingMode writingMode) const
{
return isHorizontalWritingMode(writingMode) ? m_left : m_top;
}
LayoutUnit LayoutBoxExtent::logicalRight(WritingMode writingMode) const
{
return isHorizontalWritingMode(writingMode) ? m_right : m_bottom;
}
LayoutUnit LayoutBoxExtent::before(WritingMode writingMode) const
{
switch (writingMode) {
case TopToBottomWritingMode:
return m_top;
case BottomToTopWritingMode:
return m_bottom;
case LeftToRightWritingMode:
return m_left;
case RightToLeftWritingMode:
return m_right;
}
ASSERT_NOT_REACHED();
return m_top;
}
LayoutUnit LayoutBoxExtent::after(WritingMode writingMode) const
{
switch (writingMode) {
case TopToBottomWritingMode:
return m_bottom;
case BottomToTopWritingMode:
return m_top;
case LeftToRightWritingMode:
return m_right;
case RightToLeftWritingMode:
return m_left;
}
ASSERT_NOT_REACHED();
return m_bottom;
}
LayoutUnit LayoutBoxExtent::start(WritingMode writingMode, TextDirection direction) const
{
if (isHorizontalWritingMode(writingMode))
return isLeftToRightDirection(direction) ? m_left : m_right;
return isLeftToRightDirection(direction) ? m_top : m_bottom;
}
LayoutUnit LayoutBoxExtent::end(WritingMode writingMode, TextDirection direction) const
{
if (isHorizontalWritingMode(writingMode))
return isLeftToRightDirection(direction) ? m_right : m_left;
return isLeftToRightDirection(direction) ? m_bottom : m_top;
}
void LayoutBoxExtent::setBefore(WritingMode writingMode, LayoutUnit value)
{
switch (writingMode) {
case TopToBottomWritingMode:
m_top = value;
break;
case BottomToTopWritingMode:
m_bottom = value;
break;
case LeftToRightWritingMode:
m_left = value;
break;
case RightToLeftWritingMode:
m_right = value;
break;
default:
ASSERT_NOT_REACHED();
m_top = value;
}
}
void LayoutBoxExtent::setAfter(WritingMode writingMode, LayoutUnit value)
{
switch (writingMode) {
case TopToBottomWritingMode:
m_bottom = value;
break;
case BottomToTopWritingMode:
m_top = value;
break;
case LeftToRightWritingMode:
m_right = value;
break;
case RightToLeftWritingMode:
m_left = value;
break;
default:
ASSERT_NOT_REACHED();
m_bottom = value;
}
}
void LayoutBoxExtent::setStart(WritingMode writingMode, TextDirection direction, LayoutUnit value)
{
if (isHorizontalWritingMode(writingMode)) {
if (isLeftToRightDirection(direction))
m_left = value;
else
m_right = value;
} else {
if (isLeftToRightDirection(direction))
m_top = value;
else
m_bottom = value;
}
}
void LayoutBoxExtent::setEnd(WritingMode writingMode, TextDirection direction, LayoutUnit value)
{
if (isHorizontalWritingMode(writingMode)) {
if (isLeftToRightDirection(direction))
m_right = value;
else
m_left = value;
} else {
if (isLeftToRightDirection(direction))
m_bottom = value;
else
m_top = value;
}
}
LayoutUnit& LayoutBoxExtent::mutableLogicalLeft(WritingMode writingMode)
{
return isHorizontalWritingMode(writingMode) ? m_left : m_top;
}
LayoutUnit& LayoutBoxExtent::mutableLogicalRight(WritingMode writingMode)
{
return isHorizontalWritingMode(writingMode) ? m_right : m_bottom;
}
LayoutUnit& LayoutBoxExtent::mutableBefore(WritingMode writingMode)
{
return isHorizontalWritingMode(writingMode) ? (isFlippedBlocksWritingMode(writingMode) ? m_bottom : m_top) :
(isFlippedBlocksWritingMode(writingMode) ? m_right: m_left);
}
LayoutUnit& LayoutBoxExtent::mutableAfter(WritingMode writingMode)
{
return isHorizontalWritingMode(writingMode) ? (isFlippedBlocksWritingMode(writingMode) ? m_top : m_bottom) :
(isFlippedBlocksWritingMode(writingMode) ? m_left: m_right);
}
} // namespace WebCore
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