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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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88
Libraries/LibDraw/Color.cpp
View file

@ -4,94 +4,6 @@
#include <ctype.h>
#include <stdio.h>
Color::Color(SystemColor system_color)
{
auto& theme = current_system_theme();
switch (system_color) {
case SystemColor::Window:
m_value = theme.window.value();
break;
case SystemColor::WindowText:
m_value = theme.window_text.value();
break;
case SystemColor::Base:
m_value = theme.base.value();
break;
case SystemColor::ThreedShadow1:
m_value = theme.threed_shadow1.value();
break;
case SystemColor::ThreedShadow2:
m_value = theme.threed_shadow2.value();
break;
case SystemColor::ThreedHighlight:
m_value = theme.threed_highlight.value();
break;
case SystemColor::Button:
m_value = theme.button.value();
break;
case SystemColor::ButtonText:
m_value = theme.button_text.value();
break;
case SystemColor::HoverHighlight:
m_value = theme.hover_highlight.value();
break;
case SystemColor::Selection:
m_value = theme.selection.value();
break;
case SystemColor::SelectionText:
m_value = theme.selection_text.value();
break;
case SystemColor::DesktopBackground:
m_value = theme.desktop_background.value();
break;
case SystemColor::ActiveWindowBorder1:
m_value = theme.active_window_border1.value();
break;
case SystemColor::ActiveWindowBorder2:
m_value = theme.active_window_border2.value();
break;
case SystemColor::ActiveWindowTitle:
m_value = theme.active_window_title.value();
break;
case SystemColor::InactiveWindowBorder1:
m_value = theme.inactive_window_border1.value();
break;
case SystemColor::InactiveWindowBorder2:
m_value = theme.inactive_window_border2.value();
break;
case SystemColor::InactiveWindowTitle:
m_value = theme.inactive_window_title.value();
break;
case SystemColor::MovingWindowBorder1:
m_value = theme.moving_window_border1.value();
break;
case SystemColor::MovingWindowBorder2:
m_value = theme.moving_window_border2.value();
break;
case SystemColor::MovingWindowTitle:
m_value = theme.moving_window_title.value();
break;
case SystemColor::HighlightWindowBorder1:
m_value = theme.highlight_window_border1.value();
break;
case SystemColor::HighlightWindowBorder2:
m_value = theme.highlight_window_border2.value();
break;
case SystemColor::HighlightWindowTitle:
m_value = theme.highlight_window_title.value();
break;
case SystemColor::MenuStripe:
m_value = theme.menu_stripe.value();
break;
case SystemColor::MenuBase:
m_value = theme.menu_base.value();
break;
case SystemColor::MenuSelection:
m_value = theme.menu_selection.value();
break;
}
}
Color::Color(NamedColor named)
{
struct {