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#pragma once
#include "Object.h"
#include "Rect.h"
#include "Color.h"
#include <AK/HashTable.h>
#include <AK/InlineLinkedList.h>
#include <AK/WeakPtr.h>
class MouseEvent;
class PaintEvent;
class Widget;
class Window;
class WindowManager : public Object {
public:
static WindowManager& the();
void addWindow(Window&);
void removeWindow(Window&);
void notifyTitleChanged(Window&);
void notifyRectChanged(Window&, const Rect& oldRect, const Rect& newRect);
Widget* rootWidget() { return m_rootWidget; }
void setRootWidget(Widget*);
Window* activeWindow() { return m_activeWindow.ptr(); }
void setActiveWindow(Window*);
bool isVisible(Window&) const;
void did_paint(Window&);
void repaint();
void move_to_front(Window&);
private:
WindowManager();
~WindowManager();
void processMouseEvent(MouseEvent&);
void handleTitleBarMouseEvent(Window&, MouseEvent&);
void handlePaintEvent(PaintEvent&);
virtual void event(Event&) override;
Color m_activeWindowBorderColor;
Color m_activeWindowTitleColor;
Color m_inactiveWindowBorderColor;
Color m_inactiveWindowTitleColor;
void recompose();
void paintWindowFrame(Window&);
HashTable<Window*> m_windows;
InlineLinkedList<Window> m_windows_in_order;
Widget* m_rootWidget { nullptr };
WeakPtr<Window> m_activeWindow;
WeakPtr<Window> m_dragWindow;
Point m_dragOrigin;
Point m_dragWindowOrigin;
Rect m_lastDragRect;
Rect m_dragStartRect;
Rect m_dragEndRect;
unsigned m_recompose_count { 0 };
unsigned m_frontmost_only_compose_count { 0 };
};
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