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#pragma once
#include "Base.h"
#include "Keyboard.h"
#include "cru/base/Event.h"
#include <string_view>
namespace cru::platform::gui {
namespace details {
struct WindowStyleFlagTag;
}
using WindowStyleFlag = Bitmask<details::WindowStyleFlagTag>;
struct WindowStyleFlags {
static constexpr WindowStyleFlag NoCaptionAndBorder{0b1};
};
enum class WindowVisibilityType { Show, Hide, Minimize };
enum class FocusChangeType { Gain, Lose };
enum class MouseEnterLeaveType { Enter, Leave };
struct NativeMouseButtonEventArgs {
MouseButton button;
Point point;
KeyModifier modifier;
};
struct NativeMouseWheelEventArgs {
// Positive means down. Negative means up.
float delta;
Point point;
KeyModifier modifier;
bool horizontal; // true if horizontal wheel.
};
struct NativeKeyEventArgs {
KeyCode key;
KeyModifier modifier;
};
// Represents a native window, which exposes some low-level events and
// operations.
struct INativeWindow : virtual IPlatformResource {
virtual void Close() = 0;
virtual INativeWindow* GetParent() = 0;
virtual void SetParent(INativeWindow* parent) = 0;
virtual WindowStyleFlag GetStyleFlag() = 0;
virtual void SetStyleFlag(WindowStyleFlag flag) = 0;
virtual String GetTitle() = 0;
virtual void SetTitle(String title) = 0;
virtual WindowVisibilityType GetVisibility() = 0;
virtual void SetVisibility(WindowVisibilityType visibility) = 0;
virtual Size GetClientSize() = 0;
virtual void SetClientSize(const Size& size) = 0;
virtual Rect GetClientRect() = 0;
virtual void SetClientRect(const Rect& rect) = 0;
// Get the rect of the window containing frame.
// The lefttop of the rect is relative to screen lefttop.
virtual Rect GetWindowRect() = 0;
// Set the rect of the window containing frame.
// The lefttop of the rect is relative to screen lefttop.
virtual void SetWindowRect(const Rect& rect) = 0;
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;
// Remember to call EndDraw on return value and destroy it.
virtual std::unique_ptr<graphics::IPainter> BeginPaint() = 0;
virtual IEvent<std::nullptr_t>* CreateEvent() = 0;
virtual IEvent<std::nullptr_t>* DestroyEvent() = 0;
virtual IEvent<std::nullptr_t>* PaintEvent() = 0;
virtual IEvent<WindowVisibilityType>* VisibilityChangeEvent() = 0;
virtual IEvent<Size>* ResizeEvent() = 0;
virtual IEvent<FocusChangeType>* FocusEvent() = 0;
virtual IEvent<MouseEnterLeaveType>* MouseEnterLeaveEvent() = 0;
virtual IEvent<Point>* MouseMoveEvent() = 0;
virtual IEvent<NativeMouseButtonEventArgs>* MouseDownEvent() = 0;
virtual IEvent<NativeMouseButtonEventArgs>* MouseUpEvent() = 0;
virtual IEvent<NativeMouseWheelEventArgs>* MouseWheelEvent() = 0;
virtual IEvent<NativeKeyEventArgs>* KeyDownEvent() = 0;
virtual IEvent<NativeKeyEventArgs>* KeyUpEvent() = 0;
virtual IInputMethodContext* GetInputMethodContext() = 0;
};
} // namespace cru::platform::gui
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