// Windows Template Library - WTL version 7.0
// Copyright (C) 1997-2002 Microsoft Corporation
// All rights reserved.
//
// This file is a part of the Windows Template Library.
// The code and information is provided "as-is" without
// warranty of any kind, either expressed or implied.

#ifndef __ATLGDI_H__
#define __ATLGDI_H__

#pragma once

#ifndef __cplusplus
	#error ATL requires C++ compilation (use a .cpp suffix)
#endif

#ifndef __ATLBASE_H__
	#error atlgdi.h requires atlbase.h to be included first
#endif


// protect template members from windowsx.h macros
#ifdef _INC_WINDOWSX
#undef CopyRgn
#undef CreateBrush
#undef CreatePen
#undef SelectBrush
#undef SelectPen
#undef SelectFont
#undef SelectBitmap
#endif //_INC_WINDOWSX

// required libraries
#ifndef _ATL_NO_MSIMG
#pragma comment(lib, "msimg32.lib")
#endif //!_ATL_NO_MSIMG
#ifndef _ATL_NO_OPENGL
#pragma comment(lib, "opengl32.lib")
#endif //!_ATL_NO_OPENGL


/////////////////////////////////////////////////////////////////////////////
// Classes in this file
//
// CPenT<t_bManaged>
// CBrushT<t_bManaged>
// CFontT<t_bManaged>
// CBitmapT<t_bManaged>
// CPaletteT<t_bManaged>
// CRgnT<t_bManaged>
// CDCT<t_bManaged>
// CPaintDC
// CClientDC
// CWindowDC
// CEnhMetaFileInfo
// CEnhMetaFileT<t_bManaged>
// CEnhMetaFileDC


namespace WTL
{

/////////////////////////////////////////////////////////////////////////////
// CPen

template <bool t_bManaged>
class CPenT
{
public:
// Data members
	HPEN m_hPen;

// Constructor/destructor/operators
	CPenT(HPEN hPen = NULL) : m_hPen(hPen)
	{ }

	~CPenT()
	{
		if(t_bManaged && m_hPen != NULL)
			DeleteObject();
	}

	CPenT<t_bManaged>& operator=(HPEN hPen)
	{
		m_hPen = hPen;
		return *this;
	}

	void Attach(HPEN hPen)
	{
		if(t_bManaged && m_hPen != NULL)
			::DeleteObject(m_hPen);
		m_hPen = hPen;
	}
	HPEN Detach()
	{
		HPEN hPen = m_hPen;
		m_hPen = NULL;
		return hPen;
	}

	operator HPEN() const { return m_hPen; }

	bool IsNull() const { return (m_hPen == NULL); }

// Create methods
	HPEN CreatePen(int nPenStyle, int nWidth, COLORREF crColor)
	{
		ATLASSERT(m_hPen == NULL);
		m_hPen = ::CreatePen(nPenStyle, nWidth, crColor);
		return m_hPen;
	}
	HPEN CreatePen(int nPenStyle, int nWidth, const LOGBRUSH* pLogBrush, int nStyleCount = 0, const DWORD* lpStyle = NULL)
	{
		ATLASSERT(m_hPen == NULL);
		m_hPen = ::ExtCreatePen(nPenStyle, nWidth, pLogBrush, nStyleCount, lpStyle);
		return m_hPen;
	}
	HPEN CreatePenIndirect(LPLOGPEN lpLogPen)
	{
		ATLASSERT(m_hPen == NULL);
		m_hPen = ::CreatePenIndirect(lpLogPen);
		return m_hPen;
	}

	BOOL DeleteObject()
	{
		ATLASSERT(m_hPen != NULL);
		BOOL bRet = ::DeleteObject(m_hPen);
		if(bRet)
			m_hPen = NULL;
		return bRet;
	}

// Attributes
	int GetLogPen(LOGPEN* pLogPen) const
	{
		ATLASSERT(m_hPen != NULL);
		return ::GetObject(m_hPen, sizeof(LOGPEN), pLogPen);
	}
	bool GetLogPen(LOGPEN& LogPen) const
	{
		ATLASSERT(m_hPen != NULL);
		return (::GetObject(m_hPen, sizeof(LOGPEN), &LogPen) == sizeof(LOGPEN));
	}
	int GetExtLogPen(EXTLOGPEN* pLogPen) const
	{
		ATLASSERT(m_hPen != NULL);
		return ::GetObject(m_hPen, sizeof(EXTLOGPEN), pLogPen);
	}
	bool GetExtLogPen(EXTLOGPEN& ExtLogPen) const
	{
		ATLASSERT(m_hPen != NULL);
		return (::GetObject(m_hPen, sizeof(EXTLOGPEN), &ExtLogPen) == sizeof(EXTLOGPEN));
	}
};

typedef CPenT<false>		CPenHandle;
typedef CPenT<true>		CPen;


/////////////////////////////////////////////////////////////////////////////
// CBrush

template <bool t_bManaged>
class CBrushT
{
public:
// Data members
	HBRUSH m_hBrush;

// Constructor/destructor/operators
	CBrushT(HBRUSH hBrush = NULL) : m_hBrush(hBrush)
	{ }

	~CBrushT()
	{
		if(t_bManaged && m_hBrush != NULL)
			DeleteObject();
	}

	CBrushT<t_bManaged>& operator=(HBRUSH hBrush)
	{
		m_hBrush = hBrush;
		return *this;
	}

	void Attach(HBRUSH hBrush)
	{
		if(t_bManaged && m_hBrush != NULL)
			::DeleteObject(m_hBrush);
		m_hBrush = hBrush;
	}
	HBRUSH Detach()
	{
		HBRUSH hBrush = m_hBrush;
		m_hBrush = NULL;
		return hBrush;
	}

	operator HBRUSH() const { return m_hBrush; }

	bool IsNull() const { return (m_hBrush == NULL); }

// Create methods
	HBRUSH CreateSolidBrush(COLORREF crColor)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::CreateSolidBrush(crColor);
		return m_hBrush;
	}
	HBRUSH CreateHatchBrush(int nIndex, COLORREF crColor)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::CreateHatchBrush(nIndex, crColor);
		return m_hBrush;
	}
	HBRUSH CreateBrushIndirect(const LOGBRUSH* lpLogBrush)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::CreateBrushIndirect(lpLogBrush);
		return m_hBrush;
	}
	HBRUSH CreatePatternBrush(HBITMAP hBitmap)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::CreatePatternBrush(hBitmap);
		return m_hBrush;
	}
	HBRUSH CreateDIBPatternBrush(HGLOBAL hPackedDIB, UINT nUsage)
	{
		ATLASSERT(hPackedDIB != NULL);
		const void* lpPackedDIB = ::GlobalLock(hPackedDIB);
		ATLASSERT(lpPackedDIB != NULL);
		m_hBrush = ::CreateDIBPatternBrushPt(lpPackedDIB, nUsage);
		::GlobalUnlock(hPackedDIB);
		return m_hBrush;
	}
	HBRUSH CreateDIBPatternBrush(const void* lpPackedDIB, UINT nUsage)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::CreateDIBPatternBrushPt(lpPackedDIB, nUsage);
		return m_hBrush;
	}
	HBRUSH CreateSysColorBrush(int nIndex)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::GetSysColorBrush(nIndex);
		return m_hBrush;
	}

	BOOL DeleteObject()
	{
		ATLASSERT(m_hBrush != NULL);
		BOOL bRet = ::DeleteObject(m_hBrush);
		if(bRet)
			m_hBrush = NULL;
		return bRet;
	}

// Attributes
	int GetLogBrush(LOGBRUSH* pLogBrush) const
	{
		ATLASSERT(m_hBrush != NULL);
		return ::GetObject(m_hBrush, sizeof(LOGBRUSH), pLogBrush);
	}
	bool GetLogBrush(LOGBRUSH& LogBrush) const
	{
		ATLASSERT(m_hBrush != NULL);
		return (::GetObject(m_hBrush, sizeof(LOGBRUSH), &LogBrush) == sizeof(LOGBRUSH));
	}
};

typedef CBrushT<false>		CBrushHandle;
typedef CBrushT<true>		CBrush;


/////////////////////////////////////////////////////////////////////////////
// CFont

template <bool t_bManaged>
class CFontT
{
public:
// Data members
	HFONT m_hFont;

// Constructor/destructor/operators
	CFontT(HFONT hFont = NULL) : m_hFont(hFont)
	{ }

	~CFontT()
	{
		if(t_bManaged && m_hFont != NULL)
			DeleteObject();
	}

	CFontT<t_bManaged>& operator=(HFONT hFont)
	{
		m_hFont = hFont;
		return *this;
	}

	void Attach(HFONT hFont)
	{
		if(t_bManaged && m_hFont != NULL)
			::DeleteObject(m_hFont);
		m_hFont = hFont;
	}
	HFONT Detach()
	{
		HFONT hFont = m_hFont;
		m_hFont = NULL;
		return hFont;
	}

	operator HFONT() const { return m_hFont; }

	bool IsNull() const { return (m_hFont == NULL); }

// Create methods
	HFONT CreateFontIndirect(const LOGFONT* lpLogFont)
	{
		ATLASSERT(m_hFont == NULL);
		m_hFont = ::CreateFontIndirect(lpLogFont);
		return m_hFont;
	}

#if (_WIN32_WINNT >= 0x0500)
	HFONT CreateFontIndirectEx(CONST ENUMLOGFONTEXDV* penumlfex)
	{
		ATLASSERT(m_hFont == NULL);
		m_hFont = ::CreateFontIndirectEx(penumlfex);
		return m_hFont;
	}
#endif //(_WIN32_WINNT >= 0x0500)

	HFONT CreateFont(int nHeight, int nWidth, int nEscapement,
			int nOrientation, int nWeight, BYTE bItalic, BYTE bUnderline,
			BYTE cStrikeOut, BYTE nCharSet, BYTE nOutPrecision,
			BYTE nClipPrecision, BYTE nQuality, BYTE nPitchAndFamily,
			LPCTSTR lpszFacename)
	{
		ATLASSERT(m_hFont == NULL);
		m_hFont = ::CreateFont(nHeight, nWidth, nEscapement,
			nOrientation, nWeight, bItalic, bUnderline, cStrikeOut,
			nCharSet, nOutPrecision, nClipPrecision, nQuality,
			nPitchAndFamily, lpszFacename);
		return m_hFont;
	}
	HFONT CreatePointFont(int nPointSize, LPCTSTR lpszFaceName, HDC hDC = NULL)
	{
		LOGFONT logFont;
		memset(&logFont, 0, sizeof(LOGFONT));
		logFont.lfCharSet = DEFAULT_CHARSET;
		logFont.lfHeight = nPointSize;
		lstrcpyn(logFont.lfFaceName, lpszFaceName, sizeof(logFont.lfFaceName)/sizeof(TCHAR));
		return CreatePointFontIndirect(&logFont, hDC);
	}
	HFONT CreatePointFontIndirect(const LOGFONT* lpLogFont, HDC hDC = NULL)
	{
		HDC hDC1 = (hDC != NULL) ? hDC : ::GetDC(NULL);

		// convert nPointSize to logical units based on hDC
		LOGFONT logFont = *lpLogFont;
		POINT pt;
		pt.y = ::GetDeviceCaps(hDC1, LOGPIXELSY) * logFont.lfHeight;
		pt.y /= 720;    // 72 points/inch, 10 decipoints/point
		::DPtoLP(hDC1, &pt, 1);
		POINT ptOrg = { 0, 0 };
		::DPtoLP(hDC1, &ptOrg, 1);
		logFont.lfHeight = -abs(pt.y - ptOrg.y);

		if(hDC == NULL)
			::ReleaseDC(NULL, hDC1);

		return CreateFontIndirect(&logFont);
	}

	BOOL DeleteObject()
	{
		ATLASSERT(m_hFont != NULL);
		BOOL bRet = ::DeleteObject(m_hFont);
		if(bRet)
			m_hFont = NULL;
		return bRet;
	}

// Attributes
	int GetLogFont(LOGFONT* pLogFont) const
	{
		ATLASSERT(m_hFont != NULL);
		return ::GetObject(m_hFont, sizeof(LOGFONT), pLogFont);
	}
	bool GetLogFont(LOGFONT& LogFont) const
	{
		ATLASSERT(m_hFont != NULL);
		return (::GetObject(m_hFont, sizeof(LOGFONT), &LogFont) == sizeof(LOGFONT));
	}
};

typedef CFontT<false>		CFontHandle;
typedef CFontT<true>		CFont;


/////////////////////////////////////////////////////////////////////////////
// CBitmap

template <bool t_bManaged>
class CBitmapT
{
public:
// Data members
	HBITMAP m_hBitmap;

// Constructor/destructor/operators
	CBitmapT(HBITMAP hBitmap = NULL) : m_hBitmap(hBitmap)
	{ }

	~CBitmapT()
	{
		if(t_bManaged && m_hBitmap != NULL)
			DeleteObject();
	}

	CBitmapT<t_bManaged>& operator=(HBITMAP hBitmap)
	{
		m_hBitmap = hBitmap;
		return *this;
	}

	void Attach(HBITMAP hBitmap)
	{
		if(t_bManaged && m_hBitmap != NULL)
			::DeleteObject(m_hBitmap);
		m_hBitmap = hBitmap;
	}
	HBITMAP Detach()
	{
		HBITMAP hBitmap = m_hBitmap;
		m_hBitmap = NULL;
		return hBitmap;
	}

	operator HBITMAP() const { return m_hBitmap; }

	bool IsNull() const { return (m_hBitmap == NULL); }

// Create and load methods
	HBITMAP LoadBitmap(_U_STRINGorID bitmap)
	{
		ATLASSERT(m_hBitmap == NULL);
		m_hBitmap = ::LoadBitmap(_Module.GetResourceInstance(), bitmap.m_lpstr);
		return m_hBitmap;
	}
	HBITMAP LoadOEMBitmap(UINT nIDBitmap) // for OBM_/OCR_/OIC_
	{
		ATLASSERT(m_hBitmap == NULL);
		m_hBitmap = ::LoadBitmap(NULL, MAKEINTRESOURCE(nIDBitmap));
		return m_hBitmap;
	}
	HBITMAP LoadMappedBitmap(UINT nIDBitmap, UINT nFlags = 0, LPCOLORMAP lpColorMap = NULL, int nMapSize = 0)
	{
		ATLASSERT(m_hBitmap == NULL);
		m_hBitmap = ::CreateMappedBitmap(_Module.GetResourceInstance(), nIDBitmap, (WORD)nFlags, lpColorMap, nMapSize);
		return m_hBitmap;
	}
	HBITMAP CreateBitmap(int nWidth, int nHeight, UINT nPlanes, UINT nBitcount, const void* lpBits)
	{
		ATLASSERT(m_hBitmap == NULL);
		m_hBitmap = ::CreateBitmap(nWidth, nHeight, nPlanes, nBitcount, lpBits);
		return m_hBitmap;