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LibDraw+LibGUI: Allow changing individual colors in a Palette

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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.
This commit is contained in:
Andreas Kling 2019-12-29 00:47:49 +01:00
parent 19d4f4c7b5
commit 7b2dd7e116
18 changed files with 98 additions and 40 deletions
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6
Servers/WindowServer/WSWindowManager.h
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@ -51,10 +51,10 @@ class WSWindowManager : public CObject {
public:
static WSWindowManager& the();
explicit WSWindowManager(const Palette&);
explicit WSWindowManager(const PaletteImpl&);
virtual ~WSWindowManager() override;
const Palette& palette() const { return *m_palette; }
Palette palette() const { return Palette(*m_palette); }
RefPtr<CConfigFile> wm_config() const
{
@ -286,7 +286,7 @@ private:
WeakPtr<WSButton> m_cursor_tracking_button;
WeakPtr<WSButton> m_hovered_button;
NonnullRefPtr<Palette> m_palette;
NonnullRefPtr<PaletteImpl> m_palette;
RefPtr<CConfigFile> m_wm_config;