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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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2
Servers/WindowServer/WSWindowFrame.cpp
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@ -153,7 +153,7 @@ void WSWindowFrame::paint(Painter& painter)
if (m_window.type() != WSWindowType::Normal)
return;
auto& palette = WSWindowManager::the().palette();
auto palette = WSWindowManager::the().palette();
auto& window = m_window;
auto titlebar_rect = title_bar_rect();