1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "WritingMode.h"
29#include <array>
30
31namespace WebCore {
32
33template<typename T> class RectEdges {
34public:
35 RectEdges() = default;
36
37 template<typename U>
38 RectEdges(U&& top, U&& right, U&& bottom, U&& left)
39 : m_sides({ { std::forward<T>(top), std::forward<T>(right), std::forward<T>(bottom), std::forward<T>(left) } })
40 { }
41
42 T& at(PhysicalBoxSide side) { return m_sides[static_cast<size_t>(side)]; }
43 T& top() { return at(PhysicalBoxSide::Top); }
44 T& right() { return at(PhysicalBoxSide::Right); }
45 T& bottom() { return at(PhysicalBoxSide::Bottom); }
46 T& left() { return at(PhysicalBoxSide::Left); }
47
48 const T& at(PhysicalBoxSide side) const { return m_sides[static_cast<size_t>(side)]; }
49 const T& top() const { return at(PhysicalBoxSide::Top); }
50 const T& right() const { return at(PhysicalBoxSide::Right); }
51 const T& bottom() const { return at(PhysicalBoxSide::Bottom); }
52 const T& left() const { return at(PhysicalBoxSide::Left); }
53
54 void setAt(PhysicalBoxSide side, const T& v) { at(side) = v; }
55 void setTop(const T& top) { setAt(PhysicalBoxSide::Top, top); }
56 void setRight(const T& right) { setAt(PhysicalBoxSide::Right, right); }
57 void setBottom(const T& bottom) { setAt(PhysicalBoxSide::Bottom, bottom); }
58 void setLeft(const T& left) { setAt(PhysicalBoxSide::Left, left); }
59
60 T& before(WritingMode writingMode) { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::Before)); }
61 T& after(WritingMode writingMode) { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::After)); }
62 T& start(WritingMode writingMode, TextDirection direction = TextDirection::LTR) { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::Start)); }
63 T& end(WritingMode writingMode, TextDirection direction = TextDirection::LTR) { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::End)); }
64
65 const T& before(WritingMode writingMode) const { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::Before)); }
66 const T& after(WritingMode writingMode) const { return at(mapLogicalSideToPhysicalSide(writingMode, LogicalBoxSide::After)); }
67 const T& start(WritingMode writingMode, TextDirection direction = TextDirection::LTR) const { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::Start)); }
68 const T& end(WritingMode writingMode, TextDirection direction = TextDirection::LTR) const { return at(mapLogicalSideToPhysicalSide(makeTextFlow(writingMode, direction), LogicalBoxSide::End)); }
69
70 void setBefore(const T& before, WritingMode writingMode) { this->before(writingMode) = before; }
71 void setAfter(const T& after, WritingMode writingMode) { this->after(writingMode) = after; }
72 void setStart(const T& start, WritingMode writingMode, TextDirection direction = TextDirection::LTR) { this->start(writingMode, direction) = start; }
73 void setEnd(const T& end, WritingMode writingMode, TextDirection direction = TextDirection::LTR) { this->end(writingMode, direction) = end; }
74
75 bool operator==(const RectEdges& other) const { return m_sides == other.m_sides; }
76 bool operator!=(const RectEdges& other) const { return m_sides != other.m_sides; }
77
78private:
79 std::array<T, 4> m_sides {{0, 0, 0, 0}};
80};
81
82}
83