atlgdi.h

文件加密器使用说明 本软件可以加密需要保护的数据文件

// Windows Template Library - WTL version 7.1
// Copyright (C) 1997-2003 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 __ATLAPP_H__
	#error atlgdi.h requires atlapp.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

#if defined(_WIN32_WCE) && defined(DrawIcon)
  #undef DrawIcon
#endif //defined(_WIN32_WCE) && defined(DrawIcon)

// required libraries
#if !defined(_ATL_NO_MSIMG) && !defined(_WIN32_WCE)
  #pragma comment(lib, "msimg32.lib")
#endif //!defined(_ATL_NO_MSIMG) && !defined(_WIN32_WCE)
#if !defined(_ATL_NO_OPENGL) && !defined(_WIN32_WCE)
  #pragma comment(lib, "opengl32.lib")
#endif //!defined(_ATL_NO_OPENGL) && !defined(_WIN32_WCE)


///////////////////////////////////////////////////////////////////////////////
// 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
//
// Global functions:
//   AtlIsAlphaBitmapResource()


namespace WTL
{

///////////////////////////////////////////////////////////////////////////////
// 32-bit (alpha channel) bitmap resource helper

// Note: 32-bit (alpha channel) images work only on Windows XP with Common Controls version 6.
// If you want your app to work on older version of Windows, load non-alpha images if Common
// Controls version is less than 6.

inline bool AtlIsAlphaBitmapResource(ATL::_U_STRINGorID image)
{
#if (_ATL_VER >= 0x0700)
	HRSRC hResource = ::FindResource(ATL::_AtlBaseModule.GetResourceInstance(), image.m_lpstr, RT_BITMAP);
	ATLASSERT(hResource != NULL);
	HGLOBAL hGlobal = ::LoadResource(ATL::_AtlBaseModule.GetResourceInstance(), hResource);
	ATLASSERT(hGlobal != NULL);
#else //!(_ATL_VER >= 0x0700)
	HRSRC hResource = ::FindResource(ATL::_pModule->GetResourceInstance(), image.m_lpstr, RT_BITMAP);
	ATLASSERT(hResource != NULL);
	HGLOBAL hGlobal = ::LoadResource(ATL::_pModule->GetResourceInstance(), hResource);
	ATLASSERT(hGlobal != NULL);
#endif //!(_ATL_VER >= 0x0700)
	LPBITMAPINFOHEADER pBitmapInfoHeader = (LPBITMAPINFOHEADER)::LockResource(hGlobal);
	ATLASSERT(pBitmapInfoHeader != NULL);
	return (pBitmapInfoHeader->biBitCount == 32);
}


///////////////////////////////////////////////////////////////////////////////
// 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)
	{
		Attach(hPen);
		return *this;
	}

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

#ifndef _WIN32_WCE
	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;
	}
#endif //!_WIN32_WCE

	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));
	}

#ifndef _WIN32_WCE
	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));
	}
#endif //!_WIN32_WCE
};

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)
	{
		Attach(hBrush);
		return *this;
	}

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

#ifndef _WIN32_WCE
	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;
	}
#endif //!_WIN32_WCE

	HBRUSH CreatePatternBrush(HBITMAP hBitmap)
	{
		ATLASSERT(m_hBrush == NULL);
		m_hBrush = ::CreatePatternBrush(hBitmap);
		return m_hBrush;
	}

	HBRUSH CreateDIBPatternBrush(HGLOBAL hPackedDIB, UINT nUsage)
	{
		ATLASSERT(hPackedDIB != NULL);
#ifndef _WIN32_WCE
		const void* lpPackedDIB = ::GlobalLock(hPackedDIB);
#else // CE specific
		const void* lpPackedDIB = GlobalLock(hPackedDIB);
#endif //_WIN32_WCE
		ATLASSERT(lpPackedDIB != NULL);
		m_hBrush = ::CreateDIBPatternBrushPt(lpPackedDIB, nUsage);
#ifndef _WIN32_WCE
		::GlobalUnlock(hPackedDIB);
#else // CE specific
		GlobalUnlock(hPackedDIB);
#endif //_WIN32_WCE
		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)
	{
		Attach(hFont);
		return *this;
	}

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

#ifndef _WIN32_WCE
#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;
	}
#endif //!_WIN32_WCE

	HFONT CreatePointFont(int nPointSize, LPCTSTR lpszFaceName, HDC hDC = NULL)
	{
		LOGFONT logFont = { 0 };
		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;
#ifndef _WIN32_WCE
		POINT pt = { 0, 0 };
		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);
#else // CE specific
		// DP and LP are always the same on CE
		logFont.lfHeight = ::GetDeviceCaps(hDC1, LOGPIXELSY) * logFont.lfHeight;
		logFont.lfHeight /= 720;    // 72 points/inch, 10 decipoints/point
		if(logFont.lfHeight > 0)
		{
			logFont.lfHeight *= -1;
		}
#endif //!_WIN32_WCE

		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)
	{