ladybird/Libraries/LibGfx/Palette.cpp

88 lines
2.7 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Badge.h>
#include <AK/SharedBuffer.h>
#include <LibGfx/Palette.h>
#include <string.h>
namespace Gfx {
NonnullRefPtr<PaletteImpl> PaletteImpl::create_with_shared_buffer(SharedBuffer& buffer)
{
return adopt(*new PaletteImpl(buffer));
}
PaletteImpl::PaletteImpl(SharedBuffer& buffer)
: m_theme_buffer(buffer)
{
}
Palette::Palette(const PaletteImpl& impl)
: m_impl(impl)
{
}
Palette::~Palette()
{
}
const SystemTheme& PaletteImpl::theme() const
{
return *(const SystemTheme*)m_theme_buffer->data();
}
Color PaletteImpl::color(ColorRole role) const
{
ASSERT((int)role < (int)ColorRole::__Count);
return theme().color[(int)role];
}
NonnullRefPtr<PaletteImpl> PaletteImpl::clone() const
{
auto new_theme_buffer = SharedBuffer::create_with_size(m_theme_buffer->size());
memcpy(new_theme_buffer->data(), m_theme_buffer->data(), m_theme_buffer->size());
return adopt(*new PaletteImpl(*new_theme_buffer));
}
void Palette::set_color(ColorRole role, Color color)
{
if (m_impl->ref_count() != 1)
m_impl = m_impl->clone();
auto& theme = const_cast<SystemTheme&>(impl().theme());
theme.color[(int)role] = color;
}
PaletteImpl::~PaletteImpl()
{
}
void PaletteImpl::replace_internal_buffer(Badge<GUI::Application>, SharedBuffer& buffer)
{
m_theme_buffer = buffer;
}
}