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/*
Copyright (C) 1999 Lars Knoll (knoll@kde.org)
Copyright (C) 2006, 2008, 2015 Apple Inc. All rights reserved.
Copyright (c) 2012, Google Inc. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef LengthBox_h
#define LengthBox_h
#include "Length.h"
#include "WritingMode.h"
#include <array>
namespace WebCore {
template<typename T> class BoxExtent {
public:
BoxExtent()
: m_sides({{ T(0), T(0), T(0), T(0) }})
{
}
BoxExtent(const T& top, const T& right, const T& bottom, const T& left)
: m_sides({{ top, right, bottom, left }})
{
}
T& at(PhysicalBoxSide side) { return m_sides[side]; }
T& top() { return at(TopSide); }
T& right() { return at(RightSide); }
T& bottom() { return at(BottomSide); }
T& left() { return at(LeftSide); }
const T& at(PhysicalBoxSide side) const { return m_sides[side]; }
const T& top() const { return at(TopSide); }
const T& right() const { return at(RightSide); }
const T& bottom() const { return at(BottomSide); }
const T& left() const { return at(LeftSide); }
void setAt(PhysicalBoxSide side, const T& v) { at(side) = v; }
void setTop(const T& top) { setAt(TopSide, top); }
void setRight(const T& right) { setAt(RightSide, right); }
void setBottom(const T& bottom) { setAt(BottomSide, bottom); }
void setLeft(const T& left) { setAt(LeftSide, left); }
T& before(WritingMode writingMode)
{
return at(mapLogicalSideToPhysicalSide(writingMode, BeforeSide));
}
T& after(WritingMode writingMode)
{
return at(mapLogicalSideToPhysicalSide(writingMode, AfterSide));
}
T& start(WritingMode writingMode, TextDirection direction = LTR)
{
return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), StartSide));
}
T& end(WritingMode writingMode, TextDirection direction = LTR)
{
return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), EndSide));
}
const T& before(WritingMode writingMode) const
{
return at(mapLogicalSideToPhysicalSide(writingMode, BeforeSide));
}
const T& after(WritingMode writingMode) const
{
return at(mapLogicalSideToPhysicalSide(writingMode, AfterSide));
}
const T& start(WritingMode writingMode, TextDirection direction = LTR) const
{
return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), StartSide));
}
const T& end(WritingMode writingMode, TextDirection direction = LTR) const
{
return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), EndSide));
}
void setBefore(const T& before, WritingMode writingMode) { this->before(writingMode) = before; }
void setAfter(const T& after, WritingMode writingMode) { this->after(writingMode) = after; }
void setStart(const T& start, WritingMode writingMode, TextDirection direction = LTR) { this->start(writingMode, direction) = start; }
void setEnd(const T& end, WritingMode writingMode, TextDirection direction = LTR) { this->end(writingMode, direction) = end; }
bool operator==(const BoxExtent& other) const
{
return m_sides == other.m_sides;
}
bool operator!=(const BoxExtent& other) const
{
return m_sides != other.m_sides;
}
protected:
std::array<T, 4> m_sides;
};
class LengthBox : public BoxExtent<Length> {
public:
LengthBox()
: LengthBox(Auto)
{
}
explicit LengthBox(LengthType type)
: BoxExtent(Length(type), Length(type), Length(type), Length(type))
{
}
explicit LengthBox(int v)
: BoxExtent(Length(v, Fixed), Length(v, Fixed), Length(v, Fixed), Length(v, Fixed))
{
}
LengthBox(int top, int right, int bottom, int left)
: BoxExtent(Length(top, Fixed), Length(right, Fixed), Length(bottom, Fixed), Length(left, Fixed))
{
}
LengthBox(const Length& top, const Length& right, const Length& bottom, const Length& left)
: BoxExtent(top, right, bottom, left)
{
}
bool isZero() const
{
return top().isZero() && right().isZero() && bottom().isZero() && left().isZero();
}
};
typedef BoxExtent<LayoutUnit> LayoutBoxExtent;
typedef BoxExtent<float> FloatBoxExtent;
} // namespace WebCore
#endif // LengthBox_h
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