summaryrefslogtreecommitdiff
path: root/Userland/Libraries/LibGfx/Size.h
blob: 66814a1137153fb32972353d97bb2679f5c70a0a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
/*
 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/Format.h>
#include <LibGfx/Orientation.h>
#include <LibGfx/Point.h>
#include <LibIPC/Forward.h>

namespace Gfx {

template<typename T>
class Size {
public:
    Size() = default;

    Size(T w, T h)
        : m_width(w)
        , m_height(h)
    {
    }

    template<typename U>
    Size(U width, U height)
        : m_width(width)
        , m_height(height)
    {
    }

    template<typename U>
    explicit Size(Size<U> const& other)
        : m_width(other.width())
        , m_height(other.height())
    {
    }

    [[nodiscard]] ALWAYS_INLINE T width() const { return m_width; }
    [[nodiscard]] ALWAYS_INLINE T height() const { return m_height; }
    [[nodiscard]] ALWAYS_INLINE T area() const { return width() * height(); }

    ALWAYS_INLINE void set_width(T w) { m_width = w; }
    ALWAYS_INLINE void set_height(T h) { m_height = h; }

    [[nodiscard]] ALWAYS_INLINE bool is_null() const { return !m_width && !m_height; }
    [[nodiscard]] ALWAYS_INLINE bool is_empty() const { return m_width <= 0 || m_height <= 0; }

    void scale_by(T dx, T dy)
    {
        m_width *= dx;
        m_height *= dy;
    }

    void transform_by(AffineTransform const& transform) { *this = transform.map(*this); }

    ALWAYS_INLINE void scale_by(T dboth) { scale_by(dboth, dboth); }
    ALWAYS_INLINE void scale_by(Point<T> const& s) { scale_by(s.x(), s.y()); }

    [[nodiscard]] Size scaled_by(T dx, T dy) const
    {
        Size<T> size = *this;
        size.scale_by(dx, dy);
        return size;
    }

    [[nodiscard]] Size scaled_by(T dboth) const
    {
        Size<T> size = *this;
        size.scale_by(dboth);
        return size;
    }

    [[nodiscard]] Size scaled_by(Point<T> const& s) const
    {
        Size<T> size = *this;
        size.scale_by(s);
        return size;
    }

    [[nodiscard]] Size transformed_by(AffineTransform const& transform) const
    {
        Size<T> size = *this;
        size.transform_by(transform);
        return size;
    }

    template<typename U>
    [[nodiscard]] bool contains(Size<U> const& other) const
    {
        return other.m_width <= m_width && other.m_height <= m_height;
    }

    template<class U>
    [[nodiscard]] bool operator==(Size<U> const& other) const
    {
        return width() == other.width() && height() == other.height();
    }

    template<class U>
    [[nodiscard]] bool operator!=(Size<U> const& other) const
    {
        return !(*this == other);
    }

    Size<T>& operator-=(Size<T> const& other)
    {
        m_width -= other.m_width;
        m_height -= other.m_height;
        return *this;
    }

    Size<T>& operator+=(Size<T> const& other)
    {
        m_width += other.m_width;
        m_height += other.m_height;
        return *this;
    }

    [[nodiscard]] Size<T> operator*(T factor) const { return { m_width * factor, m_height * factor }; }

    Size<T>& operator*=(T factor)
    {
        m_width *= factor;
        m_height *= factor;
        return *this;
    }

    [[nodiscard]] T primary_size_for_orientation(Orientation orientation) const
    {
        return orientation == Orientation::Vertical ? height() : width();
    }

    void set_primary_size_for_orientation(Orientation orientation, T value)
    {
        if (orientation == Orientation::Vertical) {
            set_height(value);
        } else {
            set_width(value);
        }
    }

    [[nodiscard]] T secondary_size_for_orientation(Orientation orientation) const
    {
        return orientation == Orientation::Vertical ? width() : height();
    }

    void set_secondary_size_for_orientation(Orientation orientation, T value)
    {
        if (orientation == Orientation::Vertical) {
            set_width(value);
        } else {
            set_height(value);
        }
    }

    template<typename U>
    [[nodiscard]] ALWAYS_INLINE Size<U> to_type() const
    {
        return Size<U>(*this);
    }

    [[nodiscard]] String to_string() const;

private:
    T m_width { 0 };
    T m_height { 0 };
};

using IntSize = Size<int>;
using FloatSize = Size<float>;

}

namespace AK {

template<typename T>
struct Formatter<Gfx::Size<T>> : Formatter<StringView> {
    void format(FormatBuilder& builder, Gfx::Size<T> const& value)
    {
        Formatter<StringView>::format(builder, value.to_string());
    }
};

}

namespace IPC {

bool encode(Encoder&, Gfx::IntSize const&);
bool decode(Decoder&, Gfx::IntSize&);

}