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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.
30 lines
839 B
C++
30 lines
839 B
C++
#pragma once
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#include <LibDraw/Palette.h>
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#include <LibDraw/Rect.h>
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class GPainter;
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class RenderingContext {
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public:
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explicit RenderingContext(GPainter& painter, const Palette& palette)
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: m_painter(painter)
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, m_palette(palette)
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{
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}
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GPainter& painter() const { return m_painter; }
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const Palette& palette() const { return m_palette; }
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bool should_show_line_box_borders() const { return m_should_show_line_box_borders; }
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void set_should_show_line_box_borders(bool value) { m_should_show_line_box_borders = value; }
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Rect viewport_rect() const { return m_viewport_rect; }
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void set_viewport_rect(const Rect& rect) { m_viewport_rect = rect; }
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private:
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GPainter& m_painter;
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const Palette& m_palette;
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Rect m_viewport_rect;
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bool m_should_show_line_box_borders { false };
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};
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