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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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59
Libraries/LibDraw/SystemTheme.cpp
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@ -41,34 +41,37 @@ RefPtr<SharedBuffer> load_system_theme(const String& path)
return color.value();
};
data->desktop_background = get("DesktopBackground");
data->threed_highlight = get("ThreedHighlight");
data->threed_shadow1 = get("ThreedShadow1");
data->threed_shadow2 = get("ThreedShadow2");
data->hover_highlight = get("HoverHighlight");
data->selection = get("Selection");
data->selection_text = get("SelectionText");
data->window = get("Window");
data->window_text = get("WindowText");
data->base = get("Base");
data->button = get("Button");
data->button_text = get("ButtonText");
data->desktop_background = get("DesktopBackground");
data->active_window_border1 = get("ActiveWindowBorder1");
data->active_window_border2 = get("ActiveWindowBorder2");
data->active_window_title = get("ActiveWindowTitle");
data->inactive_window_border1 = get("InactiveWindowBorder1");
data->inactive_window_border2 = get("InactiveWindowBorder2");
data->inactive_window_title = get("InactiveWindowTitle");
data->moving_window_border1 = get("MovingWindowBorder1");
data->moving_window_border2 = get("MovingWindowBorder2");
data->moving_window_title = get("MovingWindowTitle");
data->highlight_window_border1 = get("HighlightWindowBorder1");
data->highlight_window_border2 = get("HighlightWindowBorder2");
data->highlight_window_title = get("HighlightWindowTitle");
data->menu_stripe = get("MenuStripe");
data->menu_base = get("MenuBase");
data->menu_selection = get("MenuSelection");
#define DO_COLOR(x) \
data->color[(int)ColorRole::x] = get(#x)
DO_COLOR(DesktopBackground);
DO_COLOR(ThreedHighlight);
DO_COLOR(ThreedShadow1);
DO_COLOR(ThreedShadow2);
DO_COLOR(HoverHighlight);
DO_COLOR(Selection);
DO_COLOR(SelectionText);
DO_COLOR(Window);
DO_COLOR(WindowText);
DO_COLOR(Base);
DO_COLOR(Button);
DO_COLOR(ButtonText);
DO_COLOR(DesktopBackground);
DO_COLOR(ActiveWindowBorder1);
DO_COLOR(ActiveWindowBorder2);
DO_COLOR(ActiveWindowTitle);
DO_COLOR(InactiveWindowBorder1);
DO_COLOR(InactiveWindowBorder2);
DO_COLOR(InactiveWindowTitle);
DO_COLOR(MovingWindowBorder1);
DO_COLOR(MovingWindowBorder2);
DO_COLOR(MovingWindowTitle);
DO_COLOR(HighlightWindowBorder1);
DO_COLOR(HighlightWindowBorder2);
DO_COLOR(HighlightWindowTitle);
DO_COLOR(MenuStripe);
DO_COLOR(MenuBase);
DO_COLOR(MenuSelection);
buffer->seal();
buffer->share_globally();