#pragma once

#include "BsWin32Prerequisites.h"
#include "BsRenderWindow.h"

namespace BansheeEngine 
{
	/**
	 * @brief	Render window implementation for Windows.
	 */
    class BS_RSGL_EXPORT Win32Window : public RenderWindow
    {
    public:
        ~Win32Window();

		/**
		 * @copydoc RenderWindow::setFullscreen(UINT32, UINT32, float, UINT32)
		 */
		void setFullscreen(UINT32 width, UINT32 height, float refreshRate = 60.0f, UINT32 monitorIdx = 0);

		/**
		 * @copydoc RenderWindow::setFullscreen(const VideoMode&)
		 */
		void setFullscreen(const VideoMode& mode);

		/**
		 * @copydoc RenderWindow::setWindowed
		 */
		void setWindowed(UINT32 width, UINT32 height);

		/**
		 * @copydoc RenderWindow::setHidden
		 */
		void setHidden(bool hidden);

		/**
		 * @copydoc RenderWindow::isActive
		 */
		bool isActive() const;

		/**
		 * @copydoc RenderWindow::isVisible
		 */
		bool isVisible() const;

		/**
		 * @copydoc RenderWindow::isClosed
		 */
		bool isClosed() const;

		/**
		 * @copydoc RenderWindow::reposition
		 */
		void move(INT32 left, INT32 top);

		/**
		 * @copydoc RenderWindow::resize
		 */
		void resize(UINT32 width, UINT32 height);

		/**
		 * @copydoc RenderWindow::copyContentsToMemory
		 */
		void copyToMemory(const PixelData &dst, FrameBuffer buffer);

		/**
		 * @copydoc RenderWindow::swapBuffers
		 */
		void swapBuffers();

		/**
		 * @copydoc RenderWindow::requiresTextureFlipping
		 */
		bool requiresTextureFlipping() const { return false; }

		/**
		 * @copydoc RenderWindow::screenToWindowPos
		 */
		Vector2I screenToWindowPos(const Vector2I& screenPos) const;

		/**
		 * @copydoc RenderWindow::windowToScreenPos
		 */
		Vector2I windowToScreenPos(const Vector2I& windowPos) const;

		/**
		 * @copydoc RenderWindow::getCustomAttribute
		 */
		void getCustomAttribute(const String& name, void* pData) const;

		/**
		 * @copydoc RenderWindow::setActive
		 */
		virtual void setActive(bool state);

		/**
		 * @copydoc RenderWindow::_windowMovedOrResized
		 */
		void _windowMovedOrResized();

		/**
		 * @brief	Returns handle to device context associated with the window.
		 */
		HDC _getHDC() const { return mHDC; }

	protected:
		friend class GLRenderWindowManager;
		friend class Win32GLSupport;

		Win32Window(const RENDER_WINDOW_DESC& desc, Win32GLSupport &glsupport);

		/**
		 * @copydoc RenderWindow::initialize_internal().
		 */
		void initialize_internal();

		/**
		 * @copydoc RenderWindow::destroy_internal().
		 */
		void destroy_internal();

		/**
		 * @brief	Calculates window size based on provided client area size and currently set window style. 
		 */
		void getAdjustedWindowSize(UINT32 clientWidth, UINT32 clientHeight, UINT32* winWidth, UINT32* winHeight);

	protected:
		Win32GLSupport &mGLSupport;
		HWND mHWnd;
		HDC	mHDC;
		DWORD mWindowedStyle;
		DWORD mWindowedStyleEx;
		bool mIsExternal;
		bool mIsChild;
		char* mDeviceName;
		bool mIsExternalGLControl;
		bool mSizing;
		bool mClosed;
		int mDisplayFrequency;
		Win32Context *mContext;
    };
}