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LibGUI+LibDraw: Add "Palette" concept for scoped color theming

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GApplication now has a palette. This palette contains all the system
theme colors by default, and is inherited by a new top-level GWidget.
New child widgets inherit their parents palette.

It is possible to override the GApplication palette, and the palette
of any GWidget.

The Palette object contains a bunch of colors, each corresponding to
a ColorRole. Each role has a convenience getter as well.

Each GWidget now has a background_role() and foreground_role(), which
are then looked up in their current palette when painting. This means
that you no longer alter the background color of a widget by setting
it directly, rather you alter either its background role, or the
widget's palette.
This commit is contained in:
Andreas Kling 2019-12-24 20:57:54 +01:00
parent cb4e51a7a5
commit a79bac428b
62 changed files with 448 additions and 410 deletions
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12
Servers/WindowServer/WSWindowManager.h
View file

@ -9,6 +9,7 @@
#include <LibDraw/Color.h>
#include <LibDraw/DisjointRectSet.h>
#include <LibDraw/Painter.h>
#include <LibDraw/Palette.h>
#include <LibDraw/Rect.h>
#include <WindowServer/WSCursor.h>
#include <WindowServer/WSEvent.h>
@ -50,10 +51,15 @@ class WSWindowManager : public CObject {
public:
static WSWindowManager& the();
WSWindowManager();
explicit WSWindowManager(const Palette&);
virtual ~WSWindowManager() override;
RefPtr<CConfigFile> wm_config() const { return m_wm_config; }
const Palette& palette() const { return *m_palette; }
RefPtr<CConfigFile> wm_config() const
{
return m_wm_config;
}
void reload_config(bool);
void add_window(WSWindow&);
@ -276,6 +282,8 @@ private:
WeakPtr<WSButton> m_cursor_tracking_button;
WeakPtr<WSButton> m_hovered_button;
NonnullRefPtr<Palette> m_palette;
RefPtr<CConfigFile> m_wm_config;
struct AppMetadata {