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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#include <AK/Badge.h>
28#include <AK/SharedBuffer.h>
29#include <LibGfx/Palette.h>
30
31namespace Gfx {
32
33NonnullRefPtr<PaletteImpl> PaletteImpl::create_with_shared_buffer(SharedBuffer& buffer)
34{
35 return adopt(*new PaletteImpl(buffer));
36}
37
38PaletteImpl::PaletteImpl(SharedBuffer& buffer)
39 : m_theme_buffer(buffer)
40{
41}
42
43Palette::Palette(const PaletteImpl& impl)
44 : m_impl(impl)
45{
46}
47
48Palette::~Palette()
49{
50}
51
52const SystemTheme& PaletteImpl::theme() const
53{
54 return *(const SystemTheme*)m_theme_buffer->data();
55}
56
57Color PaletteImpl::color(ColorRole role) const
58{
59 ASSERT((int)role < (int)ColorRole::__Count);
60 return theme().color[(int)role];
61}
62
63NonnullRefPtr<PaletteImpl> PaletteImpl::clone() const
64{
65 auto new_theme_buffer = SharedBuffer::create_with_size(m_theme_buffer->size());
66 memcpy(new_theme_buffer->data(), m_theme_buffer->data(), m_theme_buffer->size());
67 return adopt(*new PaletteImpl(*new_theme_buffer));
68}
69
70void Palette::set_color(ColorRole role, Color color)
71{
72 if (m_impl->ref_count() != 1)
73 m_impl = m_impl->clone();
74 auto& theme = const_cast<SystemTheme&>(impl().theme());
75 theme.color[(int)role] = color;
76}
77
78PaletteImpl::~PaletteImpl()
79{
80}
81
82void PaletteImpl::replace_internal_buffer(Badge<GUI::Application>, SharedBuffer& buffer)
83{
84 m_theme_buffer = buffer;
85}
86
87}