#pragma once
#include <functional>


#ifndef MAPPOSWND_TAG

#ifdef _WIN32

#define MAPPOSWND_CLASSA		"MapPosWnd"
#define MAPPOSWND_CLASSW		L"MapPosWnd"

#ifdef UNICODE
#define MAPPOSWND_CLASS		MAPPOSWND_CLASSW
#else
#define MAPPOSWND_CLASS		MAPPOSWND_CLASSA
#endif

#else
#define MAPPOSWND_CLASS      "MapPosWnd"
#endif


#define MAPPOSWND_TAG				_T("MAPPOSWND_TAG")

#define MAPPOSWND_FIRST				(0U-5850U)
#define MAPPOSWND_LAST				(0U-2810U)
#define MAPPOSWND_POSCHANGED		(MAPPOSWND_FIRST - 1)

typedef struct tagMAPPOSWND_NMHDR
{
	NMHDR		nmhdr;
	DWORD		dwData;
	DWORD		dwData1;
	DWORD		dwData2;
} MAPPOSWND_NMHDR;

#endif

class CMapPosWnd
{
public:
	CMapPosWnd();
	~CMapPosWnd();

public:
	static BOOL RegisterWndClass();
	static CMapPosWnd * FromHandle(HWND hWnd);
	void SetFrameColor(COLORREF color);
	void SetBkgndColor(COLORREF color);
	void SetWndMaxSize(int nMaxSize);
	void SetStageSize(int cx, int cy, BOOL bInvalidata);
	void SetViewPort(LPRECT lpRect, BOOL bInvalidata);
	void GetViewPortRect(LPRECT lprcClient, LPRECT lprcDest);

private:
	void Init();
	void Notify(int nCode, int dwData, int dwData1 = 0, int dwData2 = 0);
	void Release();
	int HighTest(POINT pt);
	static CMapPosWnd* Hook(HWND hWnd);
	static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
	static LRESULT OnNcCreate(HWND hWnd, WPARAM wParam, LPARAM lParam);
	LRESULT OnDestroy(WPARAM wParam, LPARAM lParam);
	LRESULT OnTimer(WPARAM wParam, LPARAM lParam);
	LRESULT OnNcPaint(WPARAM wParam, LPARAM lParam);
	LRESULT OnPaint(WPARAM wParam, LPARAM lParam);
	LRESULT OnMouseMove(WPARAM wParam, LPARAM lParam);
	LRESULT OnLButtonDown(WPARAM wParam, LPARAM lParam);
	LRESULT OnLButtonDblclk(WPARAM wParam, LPARAM lParam);
	LRESULT OnMouseWheel(WPARAM wParam, LPARAM lParam);
	LRESULT OnKeyDown(WPARAM wParam, LPARAM lParam);
	LRESULT OnSize(WPARAM wParam, LPARAM lParam);

private:
	HWND		m_hWnd;
	COLORREF	m_crBkgnd;
	COLORREF	m_crFrame;
	COLORREF	m_crViewPort;

private:
	int			m_nWndMaxSize;
	int			m_nStageCx;
	int			m_nStageCy;
	RECT		m_rcViewPort;
};