7b2dd7e116
Palette is now a value wrapper around a NonnullRefPtr<PaletteImpl>. A new function, set_color(ColorRole, Color) implements a simple copy-on-write mechanism so that we're sharing the PaletteImpl in the common case, but allowing you to create custom palettes if you like, by getting a GWidget's palette, modifying it, and then assigning the modified palette to the widget via GWidget::set_palette(). Use this to make PaintBrush show its palette colors once again. Fixes #943.
46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
#include <LibDraw/Palette.h>
|
|
|
|
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;
|
|
}
|