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- #pragma once
- #include "GEvent.h"
- #include "GObject.h"
- #include <SharedGraphics/Rect.h>
- #include <SharedGraphics/Color.h>
- #include <SharedGraphics/Font.h>
- #include <AK/Badge.h>
- #include <AK/AKString.h>
- class GraphicsBitmap;
- class GLayout;
- class GWindow;
- enum class SizePolicy { Fixed, Fill };
- enum class Orientation { Horizontal, Vertical };
- class GWidget : public GObject {
- public:
- explicit GWidget(GWidget* parent = nullptr);
- virtual ~GWidget() override;
- GLayout* layout() { return m_layout.ptr(); }
- void set_layout(OwnPtr<GLayout>&&);
- SizePolicy horizontal_size_policy() const { return m_horizontal_size_policy; }
- SizePolicy vertical_size_policy() const { return m_vertical_size_policy; }
- SizePolicy size_policy(Orientation orientation) { return orientation == Orientation::Horizontal ? m_horizontal_size_policy : m_vertical_size_policy; }
- void set_size_policy(SizePolicy horizontal_policy, SizePolicy vertical_policy);
- Size preferred_size() const { return m_preferred_size; }
- void set_preferred_size(const Size&);
- virtual void event(GEvent&) override;
- virtual void paint_event(GPaintEvent&);
- virtual void resize_event(GResizeEvent&);
- virtual void show_event(GShowEvent&);
- virtual void hide_event(GHideEvent&);
- virtual void keydown_event(GKeyEvent&);
- virtual void keyup_event(GKeyEvent&);
- virtual void mousemove_event(GMouseEvent&);
- virtual void mousedown_event(GMouseEvent&);
- virtual void mouseup_event(GMouseEvent&);
- virtual void focusin_event(GEvent&);
- virtual void focusout_event(GEvent&);
- virtual void enter_event(GEvent&);
- virtual void leave_event(GEvent&);
- Rect relative_rect() const { return m_relative_rect; }
- Point relative_position() const { return m_relative_rect.location(); }
- Rect window_relative_rect() const;
- int x() const { return m_relative_rect.x(); }
- int y() const { return m_relative_rect.y(); }
- int width() const { return m_relative_rect.width(); }
- int height() const { return m_relative_rect.height(); }
- Rect rect() const { return { 0, 0, width(), height() }; }
- Size size() const { return m_relative_rect.size(); }
- void update();
- void update(const Rect&);
- virtual bool accepts_focus() const { return false; }
- bool is_focused() const;
- void set_focus(bool);
- struct HitTestResult {
- GWidget* widget { nullptr };
- int localX { 0 };
- int localY { 0 };
- };
- HitTestResult hit_test(int x, int y);
- virtual const char* class_name() const override { return "GWidget"; }
- void set_relative_rect(const Rect&);
- void set_relative_rect(int x, int y, int width, int height) { set_relative_rect({ x, y, width, height }); }
- void move_to(const Point& point) { set_relative_rect({ point, relative_rect().size() }); }
- void move_to(int x, int y) { move_to({ x, y }); }
- void resize(const Size& size) { set_relative_rect({ relative_rect().location(), size }); }
- void resize(int width, int height) { resize({ width, height }); }
- Color background_color() const { return m_background_color; }
- Color foreground_color() const { return m_foreground_color; }
- void set_background_color(Color color) { m_background_color = color; }
- void set_foreground_color(Color color) { m_foreground_color = color; }
- GWindow* window()
- {
- if (auto* pw = parent_widget())
- return pw->window();
- return m_window;
- }
- const GWindow* window() const
- {
- if (auto* pw = parent_widget())
- return pw->window();
- return m_window;
- }
- void set_window(GWindow*);
- GWidget* parent_widget() { return static_cast<GWidget*>(parent()); }
- const GWidget* parent_widget() const { return static_cast<const GWidget*>(parent()); }
- void set_fill_with_background_color(bool b) { m_fill_with_background_color = b; }
- bool fill_with_background_color() const { return m_fill_with_background_color; }
- const Font& font() const { return *m_font; }
- void set_font(RetainPtr<Font>&&);
- void set_global_cursor_tracking(bool);
- bool global_cursor_tracking() const;
- void notify_layout_changed(Badge<GLayout>);
- private:
- void handle_paint_event(GPaintEvent&);
- void handle_resize_event(GResizeEvent&);
- void do_layout();
- void invalidate_layout();
- GWindow* m_window { nullptr };
- OwnPtr<GLayout> m_layout;
- Rect m_relative_rect;
- Color m_background_color;
- Color m_foreground_color;
- RetainPtr<Font> m_font;
- SizePolicy m_horizontal_size_policy { SizePolicy::Fill };
- SizePolicy m_vertical_size_policy { SizePolicy::Fill };
- Size m_preferred_size;
- bool m_fill_with_background_color { true };
- };
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