a79bac428b
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.
47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#include <LibDraw/GraphicsBitmap.h>
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#include <LibDraw/Palette.h>
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#include <LibGUI/GPainter.h>
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#include <LibGUI/GResizeCorner.h>
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#include <LibGUI/GWindow.h>
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GResizeCorner::GResizeCorner(GWidget* parent)
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: GWidget(parent)
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{
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set_background_role(ColorRole::Button);
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set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
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set_preferred_size(16, 16);
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m_bitmap = GraphicsBitmap::load_from_file("/res/icons/resize-corner.png");
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ASSERT(m_bitmap);
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}
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GResizeCorner::~GResizeCorner()
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{
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}
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void GResizeCorner::paint_event(GPaintEvent& event)
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{
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GPainter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.fill_rect(rect(), palette().color(background_role()));
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painter.blit({ 0, 0 }, *m_bitmap, m_bitmap->rect());
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GWidget::paint_event(event);
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}
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void GResizeCorner::mousedown_event(GMouseEvent& event)
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{
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if (event.button() == GMouseButton::Left)
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window()->start_wm_resize();
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GWidget::mousedown_event(event);
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}
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void GResizeCorner::enter_event(CEvent& event)
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{
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window()->set_override_cursor(GStandardCursor::ResizeDiagonalTLBR);
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GWidget::enter_event(event);
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}
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void GResizeCorner::leave_event(CEvent& event)
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{
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window()->set_override_cursor(GStandardCursor::None);
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GWidget::leave_event(event);
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}
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