1 files changed, 74 insertions, 0 deletions
diff --git a/include/cru/platform/native/window.hpp b/include/cru/platform/native/window.hpp
new file mode 100644
index 00000000..bfaf170b
--- /dev/null
+++ b/include/cru/platform/native/window.hpp
@@ -0,0 +1,74 @@
+#pragma once
+#include "../resource.hpp"
+
+#include "../graph_base.hpp"
+#include "basic_types.hpp"
+#include "cru/common/event.hpp"
+#include "cursor.hpp"
+#include "event.hpp"
+
+namespace cru::platform::graph {
+struct IPainter;
+}
+
+namespace cru::platform::native {
+// Represents a native window, which exposes some low-level events and
+// operations.
+//
+// Although you can always retain an instance of this class, the real window
+// associated with it might be have already been destroyed by explicitly calling
+// Close or closed by the user, which leads to an invalid instance. You can
+// check the validity by IsValid. When you call perform native operations on the
+// invalid instance, there is no effect.
+struct INativeWindow : virtual INativeResource {
+  // Return if the window is still valid, that is, hasn't been closed or
+  // destroyed.
+  virtual bool IsValid() = 0;
+
+  // Set if the instance is deleted automatically when the window is destroyed
+  // by other ways. Default is true.
+  virtual void SetDeleteThisOnDestroy(bool value) = 0;
+
+  virtual void Close() = 0;
+
+  virtual INativeWindow* GetParent() = 0;
+
+  virtual bool IsVisible() = 0;
+  virtual void SetVisible(bool is_visible) = 0;
+
+  virtual Size GetClientSize() = 0;
+  virtual void SetClientSize(const Size& size) = 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;
+
+  // 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 RequestRepaint() = 0;
+
+  // Remember to call EndDraw on return value and destroy it.
+  virtual std::unique_ptr<graph::IPainter> BeginPaint() = 0;
+
+  virtual IEvent<std::nullptr_t>* DestroyEvent() = 0;
+  virtual IEvent<std::nullptr_t>* PaintEvent() = 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<int>* KeyDownEvent() = 0;
+  virtual IEvent<int>* KeyUpEvent() = 0;
+};
+}  // namespace cru::platform::native