106 lines
5.3 KiB
C++
106 lines
5.3 KiB
C++
/*
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* Copyright (C) 2017 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 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 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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#pragma once
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#include "WritingMode.h"
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#include <array>
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#include <wtf/OptionSet.h>
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#include <wtf/text/TextStream.h>
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namespace WebCore {
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enum class BoxSideFlag : uint8_t {
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Top = 1 << static_cast<unsigned>(BoxSide::Top),
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Right = 1 << static_cast<unsigned>(BoxSide::Right),
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Bottom = 1 << static_cast<unsigned>(BoxSide::Bottom),
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Left = 1 << static_cast<unsigned>(BoxSide::Left)
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};
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using BoxSideSet = OptionSet<BoxSideFlag>;
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template<typename T> class RectEdges {
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public:
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RectEdges() = default;
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RectEdges(const RectEdges&) = default;
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template<typename U>
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RectEdges(U&& top, U&& right, U&& bottom, U&& left)
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: m_sides({ { std::forward<T>(top), std::forward<T>(right), std::forward<T>(bottom), std::forward<T>(left) } })
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{ }
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T& at(BoxSide side) { return m_sides[static_cast<size_t>(side)]; }
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T& operator[](BoxSide side) { return m_sides[static_cast<size_t>(side)]; }
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T& top() { return at(BoxSide::Top); }
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T& right() { return at(BoxSide::Right); }
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T& bottom() { return at(BoxSide::Bottom); }
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T& left() { return at(BoxSide::Left); }
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const T& at(BoxSide side) const { return m_sides[static_cast<size_t>(side)]; }
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const T& operator[](BoxSide side) const { return m_sides[static_cast<size_t>(side)]; }
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const T& top() const { return at(BoxSide::Top); }
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const T& right() const { return at(BoxSide::Right); }
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const T& bottom() const { return at(BoxSide::Bottom); }
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const T& left() const { return at(BoxSide::Left); }
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void setAt(BoxSide side, const T& v) { at(side) = v; }
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void setTop(const T& top) { setAt(BoxSide::Top, top); }
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void setRight(const T& right) { setAt(BoxSide::Right, right); }
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void setBottom(const T& bottom) { setAt(BoxSide::Bottom, bottom); }
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void setLeft(const T& left) { setAt(BoxSide::Left, left); }
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T& before(WritingMode writingMode) { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::BlockStart)); }
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T& after(WritingMode writingMode) { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::BlockEnd)); }
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T& start(WritingMode writingMode, TextDirection direction = TextDirection::LTR) { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::InlineStart)); }
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T& end(WritingMode writingMode, TextDirection direction = TextDirection::LTR) { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::InlineEnd)); }
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const T& before(WritingMode writingMode) const { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::BlockStart)); }
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const T& after(WritingMode writingMode) const { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::BlockEnd)); }
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const T& start(WritingMode writingMode, TextDirection direction = TextDirection::LTR) const { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::InlineStart)); }
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const T& end(WritingMode writingMode, TextDirection direction = TextDirection::LTR) const { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::InlineEnd)); }
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void setBefore(const T& before, WritingMode writingMode) { this->before(writingMode) = before; }
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void setAfter(const T& after, WritingMode writingMode) { this->after(writingMode) = after; }
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void setStart(const T& start, WritingMode writingMode, TextDirection direction = TextDirection::LTR) { this->start(writingMode, direction) = start; }
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void setEnd(const T& end, WritingMode writingMode, TextDirection direction = TextDirection::LTR) { this->end(writingMode, direction) = end; }
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bool operator==(const RectEdges& other) const { return m_sides == other.m_sides; }
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bool operator!=(const RectEdges& other) const { return m_sides != other.m_sides; }
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private:
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std::array<T, 4> m_sides { };
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};
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template<typename T>
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TextStream& operator<<(TextStream& ts, const RectEdges<T>& edges)
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{
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ts << "[top " << edges.top() << " right " << edges.right() << " bottom " << edges.bottom() << " left " << edges.left() << "]";
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return ts;
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}
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}
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