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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <AK/LogStream.h>
30#include <AK/String.h>
31#include <LibGfx/Orientation.h>
32
33namespace Gfx {
34
35class FloatSize {
36public:
37 FloatSize() {}
38 FloatSize(float w, float h)
39 : m_width(w)
40 , m_height(h)
41 {
42 }
43
44 bool is_null() const { return !m_width && !m_height; }
45 bool is_empty() const { return m_width <= 0 || m_height <= 0; }
46
47 float width() const { return m_width; }
48 float height() const { return m_height; }
49
50 float area() const { return width() * height(); }
51
52 void set_width(float w) { m_width = w; }
53 void set_height(float h) { m_height = h; }
54
55 bool operator==(const FloatSize& other) const
56 {
57 return m_width == other.m_width && m_height == other.m_height;
58 }
59
60 bool operator!=(const FloatSize& other) const
61 {
62 return !(*this == other);
63 }
64
65 FloatSize& operator-=(const FloatSize& other)
66 {
67 m_width -= other.m_width;
68 m_height -= other.m_height;
69 return *this;
70 }
71
72 FloatSize& operator+=(const FloatSize& other)
73 {
74 m_width += other.m_width;
75 m_height += other.m_height;
76 return *this;
77 }
78
79 float primary_size_for_orientation(Orientation orientation) const
80 {
81 return orientation == Orientation::Vertical ? height() : width();
82 }
83
84 void set_primary_size_for_orientation(Orientation orientation, float value)
85 {
86 if (orientation == Orientation::Vertical)
87 set_height(value);
88 else
89 set_width(value);
90 }
91
92 float secondary_size_for_orientation(Orientation orientation) const
93 {
94 return orientation == Orientation::Vertical ? width() : height();
95 }
96
97 void set_secondary_size_for_orientation(Orientation orientation, float value)
98 {
99 if (orientation == Orientation::Vertical)
100 set_width(value);
101 else
102 set_height(value);
103 }
104
105 String to_string() const { return String::format("[%gx%g]", m_width, m_height); }
106
107private:
108 float m_width { 0 };
109 float m_height { 0 };
110};
111
112inline const LogStream& operator<<(const LogStream& stream, const FloatSize& value)
113{
114 return stream << value.to_string();
115}
116
117}