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#pragma once
#include "../../GraphicsBase.h"
#include "../Window.h"
#include "Base.h"
#include <cairo.h>
#include <xcb/xcb.h>
#include <cstddef>
#include <optional>
namespace cru::platform::gui::xcb {
class XcbUiApplication;
class XcbWindow : public XcbResource, public virtual INativeWindow {
friend XcbUiApplication;
public:
explicit XcbWindow(XcbUiApplication* application);
~XcbWindow() override;
void Close() override;
INativeWindow* GetParent() override;
void SetParent(INativeWindow* parent) override;
WindowStyleFlag GetStyleFlag() override;
void SetStyleFlag(WindowStyleFlag flag) override;
String GetTitle() override;
void SetTitle(String title) override;
WindowVisibilityType GetVisibility() override;
void SetVisibility(WindowVisibilityType visibility) override;
Size GetClientSize() override;
void SetClientSize(const Size& size) override;
Rect GetClientRect() override;
void SetClientRect(const Rect& rect) override;
Rect GetWindowRect() override;
void SetWindowRect(const Rect& rect) override;
virtual bool RequestFocus() = 0;
// Relative to client lefttop.
virtual Point GetMousePosition() = 0;
virtual bool CaptureMouse() = 0;
virtual bool ReleaseMouse() = 0;
virtual void SetCursor(std::shared_ptr<ICursor> cursor) = 0;
virtual void SetToForeground() = 0;
virtual void RequestRepaint() = 0;
std::unique_ptr<graphics::IPainter> BeginPaint() override;
IEvent<std::nullptr_t>* CreateEvent() override;
IEvent<std::nullptr_t>* DestroyEvent() override;
IEvent<std::nullptr_t>* PaintEvent() override;
IEvent<WindowVisibilityType>* VisibilityChangeEvent() override;
IEvent<Size>* ResizeEvent() override;
IEvent<FocusChangeType>* FocusEvent() override;
IEvent<MouseEnterLeaveType>* MouseEnterLeaveEvent() override;
IEvent<Point>* MouseMoveEvent() override;
IEvent<NativeMouseButtonEventArgs>* MouseDownEvent() override;
IEvent<NativeMouseButtonEventArgs>* MouseUpEvent() override;
IEvent<NativeMouseWheelEventArgs>* MouseWheelEvent() override;
IEvent<NativeKeyEventArgs>* KeyDownEvent() override;
IEvent<NativeKeyEventArgs>* KeyUpEvent() override;
virtual IInputMethodContext* GetInputMethodContext() = 0;
public:
std::optional<xcb_window_t> GetXcbWindow();
private:
xcb_window_t DoCreateWindow();
void HandleEvent(xcb_generic_event_t* event);
static std::optional<xcb_window_t> GetEventWindow(xcb_generic_event_t* event);
void DoSetParent(xcb_window_t window);
void DoSetStyleFlags(xcb_window_t window);
void DoSetTitle(xcb_window_t window);
void DoSetClientRect(xcb_window_t window, const Rect& rect);
void* XcbGetProperty(xcb_window_t window, xcb_atom_t property,
xcb_atom_t type, std::uint32_t offset,
std::uint32_t length,
std::uint32_t* out_length = nullptr);
// Relative to screen lefttop.
Point GetXcbWindowPosition(xcb_window_t window);
std::optional<Thickness> Get_NET_FRAME_EXTENTS(xcb_window_t window);
private:
XcbUiApplication* application_;
std::optional<xcb_window_t> xcb_window_;
cairo_surface_t* cairo_surface_;
Size current_size_;
WindowStyleFlag style_;
std::string title_;
bool mapped_;
XcbWindow* parent_;
Event<std::nullptr_t> create_event_;
Event<std::nullptr_t> destroy_event_;
Event<std::nullptr_t> paint_event_;
Event<WindowVisibilityType> visibility_change_event_;
Event<Size> resize_event_;
Event<FocusChangeType> focus_event_;
Event<MouseEnterLeaveType> mouse_enter_leave_event_;
Event<Point> mouse_move_event_;
Event<NativeMouseButtonEventArgs> mouse_down_event_;
Event<NativeMouseButtonEventArgs> mouse_up_event_;
Event<NativeMouseWheelEventArgs> mouse_wheel_event_;
Event<NativeKeyEventArgs> key_down_event_;
Event<NativeKeyEventArgs> key_up_event_;
};
} // namespace cru::platform::gui::xcb
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