Source/WebCore/platform/LengthBox.cpp

/*
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#include "config.h"
#include "LengthBox.h"

#include "RenderStyle.h"

namespace WebCore {

Length LengthBox::logicalLeft(const RenderStyle* style) const
{
    return style->isHorizontalWritingMode() ? m_left : m_top;
}

Length LengthBox::logicalRight(const RenderStyle* style) const
{
    return style->isHorizontalWritingMode() ? m_right : m_bottom;
}

Length LengthBox::before(const RenderStyle* style) const
{
    switch (style->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;
}

Length LengthBox::after(const RenderStyle* style) const
{
    switch (style->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;
}

Length LengthBox::start(const RenderStyle* style) const
{
    if (style->isHorizontalWritingMode())
        return style->isLeftToRightDirection() ? m_left : m_right;
    return style->isLeftToRightDirection() ? m_top : m_bottom;
}

Length LengthBox::end(const RenderStyle* style) const
{
    if (style->isHorizontalWritingMode())
        return style->isLeftToRightDirection() ? m_right : m_left;
    return style->isLeftToRightDirection() ? m_bottom : m_top;
}

} // namespace WebCore