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WindowServer, LibGUI: Variable minimum window sizes

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Minimum window size can now be customised and set at runtime via the
SetWindowMinimumSize WindowServer message and the set_minimum_size
LibGUI::Window method. The default minimum size remains at 50x50.

Some behind-the-scenes mechanics had to be added to LibGUI::Window to
ensure that the minimum size is remembered if set before the window is
shown. WindowServer sends a resize event to the client if it requests a
size on create that's smaller than it's minimum size.
This commit is contained in:
Nick Vella 2021-02-16 00:59:43 +11:00 • committed by Andreas Kling
parent dea0d22ab3
commit 15c1f7a40d
7 changed files with 130 additions and 8 deletions
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6
Userland/Libraries/LibGUI/Window.h
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@ -108,6 +108,10 @@ public:
Gfx::IntPoint position() const { return rect().location(); }
Gfx::IntSize minimum_size() const;
void set_minimum_size(const Gfx::IntSize&);
void set_minimum_size(int width, int height) { set_minimum_size({ width, height }); }
void move_to(int x, int y) { move_to({ x, y }); }
void move_to(const Gfx::IntPoint& point) { set_rect({ point, size() }); }
@ -248,6 +252,8 @@ private:
WeakPtr<Widget> m_automatic_cursor_tracking_widget;
WeakPtr<Widget> m_hovered_widget;
Gfx::IntRect m_rect_when_windowless;
Gfx::IntSize m_minimum_size_when_windowless { 50, 50 };
bool m_minimum_size_modified { false };
String m_title_when_windowless;
Vector<Gfx::IntRect, 32> m_pending_paint_event_rects;
Gfx::IntSize m_size_increment;