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WindowServer: Give windows a "background color" to use for missing parts.

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When resizing a window, we often end up having to paint some part of it
without coverage in the current backing store. This patch makes those cases
look nicer by having a fallback background color for each window, passed
along with the CreateWindow client message.
This commit is contained in:
Andreas Kling 2019-04-10 14:29:47 +02:00
parent 30e2d62c38
commit d4818dd2dd
9 changed files with 30 additions and 2 deletions
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1
LibGUI/GWindow.cpp
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@ -62,6 +62,7 @@ void GWindow::show()
request.window.modal = m_modal;
request.window.resizable = m_resizable;
request.window.opacity = m_opacity_when_windowless;
request.window.background_color = m_background_color.value();
request.window.size_increment = m_size_increment;
request.window.base_size = m_base_size;
request.window.type = (WSAPI_WindowType)m_window_type;

4
LibGUI/GWindow.h
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@ -38,6 +38,9 @@ public:
String title() const;
void set_title(const String&);
Color background_color() const { return m_background_color; }
void set_background_color(Color color) { m_background_color = color; }
int x() const { return rect().x(); }
int y() const { return rect().y(); }
int width() const { return rect().width(); }
@ -123,6 +126,7 @@ private:
Vector<Rect> m_pending_paint_event_rects;
Size m_size_increment;
Size m_base_size;
Color m_background_color { Color::LightGray };
GWindowType m_window_type { GWindowType::Normal };
bool m_is_active { false };
bool m_should_exit_app_on_close { false };