www.pudn.com > CustomTabCtrl.zip > ThemeUtil.cpp

/********************************************************************** 
** 
**	ThemeUtil.cpp : implementation file of CThemeUtil class 
** 
**	by Andrzej Markowski June 2004 
** 
**********************************************************************/ 
 
#include "stdafx.h" 
#include "themeutil.h" 
 
CThemeUtil::CThemeUtil() 
{ 
	m_hUxThemeDll = NULL; 
	m_hRcDll = NULL; 
	m_hTheme = NULL; 
	FreeLibrary(); 
	if(IsWinXP()) 
		m_hUxThemeDll = AfxLoadLibrary(CString(_T("UxTheme.dll"))); 
} 
 
CThemeUtil::~CThemeUtil() 
{ 
	FreeLibrary(); 
} 
 
void CThemeUtil::FreeLibrary() 
{ 
	CloseThemeData(); 
	if(m_hUxThemeDll!=NULL) 
		AfxFreeLibrary(m_hUxThemeDll); 
	m_hUxThemeDll = NULL; 
} 
 
BOOL CThemeUtil::IsWinXP(void) 
{ 
	OSVERSIONINFO osvi; 
	::ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 
	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 
	::GetVersionEx(&osvi); 
	return MAKELONG(osvi.dwMajorVersion,osvi.dwMinorVersion) >= MAKELONG(5,1); 
} 
 
BOOL CThemeUtil::OpenThemeData(HWND hWnd, LPCWSTR pszClassList) 
{ 
	if(m_hUxThemeDll==NULL || hWnd==NULL || m_hTheme)  
		return FALSE; 
	UINT (PASCAL* pfnIsThemeActive)();	// IsThemeActive 
	(FARPROC&)pfnIsThemeActive=GetProcAddress(m_hUxThemeDll,"IsThemeActive"); 
	if(pfnIsThemeActive && pfnIsThemeActive()) 
	{ 
		UINT (PASCAL* pfnOpenThemeData)(HWND hwnd, LPCWSTR pszClassList); 
		(FARPROC&)pfnOpenThemeData=GetProcAddress(m_hUxThemeDll,"OpenThemeData"); 
		if(pfnOpenThemeData) 
			m_hTheme=pfnOpenThemeData(hWnd, pszClassList); 
		if(m_hTheme) 
		{ 
			WCHAR szThemeFileName[MAX_PATH]; 
			WCHAR szColorBuff[MAX_PATH]; 
			WCHAR szSizeBuff[MAX_PATH]; 
			 
			if(GetCurrentThemeName(szThemeFileName,MAX_PATH,szColorBuff,MAX_PATH,szSizeBuff,MAX_PATH)) 
			{ 
				if((m_hRcDll = AfxLoadLibrary(CString(szThemeFileName)))) 
					return TRUE;				 
			} 
			CloseThemeData(); 
			return FALSE; 
		} 
	} 
	return FALSE; 
} 
 
void CThemeUtil::CloseThemeData() 
{ 
	if(m_hTheme) 
	{ 
		UINT (PASCAL* pfnCloseThemeData)(HANDLE hTheme); 
		(FARPROC&)pfnCloseThemeData=GetProcAddress(m_hUxThemeDll,"CloseThemeData"); 
		if(pfnCloseThemeData) 
			pfnCloseThemeData((HANDLE)m_hTheme); 
	} 
	m_hTheme = NULL; 
	if(m_hRcDll!=NULL) 
		AfxFreeLibrary(m_hRcDll); 
	m_hRcDll = NULL; 
} 
 
BOOL CThemeUtil::DrawThemePart(HDC hdc, int iPartId, int iStateId, const RECT *pRect) 
{ 
	if(m_hTheme==NULL) 
		return FALSE; 
	UINT (PASCAL* pfnDrawThemeBackground)(UINT hTheme, HDC hdc, int iPartId, int iStateId, 
										const RECT *pRect, const RECT* pClipRect); 
	(FARPROC&)pfnDrawThemeBackground=GetProcAddress(m_hUxThemeDll,"DrawThemeBackground"); 
	if(pfnDrawThemeBackground) 
	{ 
		pfnDrawThemeBackground(m_hTheme, hdc, iPartId, iStateId, pRect, NULL); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
BOOL CThemeUtil::GetThemeColor(int iPartId, int iStateId, int iPropId, const COLORREF *pColor) 
{ 
	if(m_hTheme==NULL) 
		return FALSE; 
	UINT (PASCAL* pfnGetThemeColor)(UINT hTheme, int iPartId, int iStateId, int iPropId,  
										const COLORREF *pColor); 
	(FARPROC&)pfnGetThemeColor=GetProcAddress(m_hUxThemeDll,"GetThemeColor"); 
	if(pfnGetThemeColor) 
	{ 
		pfnGetThemeColor(m_hTheme, iPartId, iStateId, iPropId, pColor); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
BOOL CThemeUtil::GetThemeEnumValue(int iPartId, int iStateId, int iPropId, const int *piVal) 
{ 
	if(m_hTheme==NULL) 
		return FALSE; 
 
	UINT (PASCAL* pfnGetThemeEnumValue)(UINT hTheme, int iPartId, int iStateId, int iPropId,  
										const int *piVal); 
	(FARPROC&)pfnGetThemeEnumValue=GetProcAddress(m_hUxThemeDll,"GetThemeEnumValue"); 
	if(pfnGetThemeEnumValue) 
	{ 
		pfnGetThemeEnumValue(m_hTheme, iPartId, iStateId, iPropId, piVal); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
BOOL CThemeUtil::GetThemeInt(int iPartId, int iStateId, int iPropId, const int *piVal) 
{ 
	if(m_hTheme==NULL) 
		return FALSE; 
 
	UINT (PASCAL* pfnGetThemeInt)(UINT hTheme, int iPartId, int iStateId, int iPropId,  
										const int *piVal); 
	(FARPROC&)pfnGetThemeInt=GetProcAddress(m_hUxThemeDll,"GetThemeInt"); 
	if(pfnGetThemeInt) 
	{ 
		pfnGetThemeInt(m_hTheme, iPartId, iStateId, iPropId, piVal); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
BOOL CThemeUtil::GetThemeMargins(int iPartId, int iStateId, int iPropId, const MY_MARGINS *pMargins) 
{ 
	if(m_hTheme==NULL) 
		return FALSE; 
 
	UINT (PASCAL* pfnGetThemeMargins)(UINT hTheme, OPTIONAL HDC hdc, int iPartId,  
				int iStateId, int iPropId, OPTIONAL RECT *prc, const MY_MARGINS *pMargins); 
	(FARPROC&)pfnGetThemeMargins=GetProcAddress(m_hUxThemeDll,"GetThemeMargins"); 
	if(pfnGetThemeMargins) 
	{ 
		pfnGetThemeMargins(m_hTheme, NULL, iPartId, iStateId, iPropId, NULL, pMargins); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
BOOL CThemeUtil::GetThemeFilename(int iPartId, int iStateId, int iPropId,  
								  OUT LPWSTR pszThemeFileName, int cchMaxBuffChars) 
{ 
	if(m_hTheme==NULL) 
		return FALSE; 
	UINT (PASCAL* pfnGetThemeFilename)(UINT hTheme, int iPartId, int iStateId, int iPropId,  
										OUT LPWSTR pszThemeFileName, int cchMaxBuffChars); 
	(FARPROC&)pfnGetThemeFilename=GetProcAddress(m_hUxThemeDll,"GetThemeFilename"); 
	if(pfnGetThemeFilename) 
	{ 
		pfnGetThemeFilename(m_hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
BOOL CThemeUtil::GetCurrentThemeName(OUT LPWSTR pszThemeFileName, int cchMaxNameChars,  
							OUT OPTIONAL LPWSTR pszColorBuff, int cchMaxColorChars, 
							OUT OPTIONAL LPWSTR pszSizeBuff, int cchMaxSizeChars) 
{ 
	if(m_hUxThemeDll==NULL) 
		return FALSE; 
	UINT (PASCAL* pfnGetCurrentThemeName)(OUT LPWSTR pszThemeFileName,  
										int cchMaxNameChars,  
										OUT OPTIONAL LPWSTR pszColorBuff,  
										int cchMaxColorChars, 
										OUT OPTIONAL LPWSTR pszSizeBuff,  
										int cchMaxSizeChars); 
	(FARPROC&)pfnGetCurrentThemeName=GetProcAddress(m_hUxThemeDll,"GetCurrentThemeName"); 
	if(pfnGetCurrentThemeName) 
	{ 
		pfnGetCurrentThemeName(pszThemeFileName,cchMaxNameChars,pszColorBuff,cchMaxColorChars,pszSizeBuff,cchMaxSizeChars); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
HBITMAP CThemeUtil::LoadBitmap(LPWSTR pszBitmapName) 
{ 
	if(m_hRcDll==NULL) 
		return NULL; 
	try 
	{ 
		CString sBitmapName(pszBitmapName); 
		sBitmapName.Replace('\\','_'); 
		sBitmapName.Replace('.','_'); 
		return ::LoadBitmap(m_hRcDll,sBitmapName); 
	} 
	catch(CMemoryException* e) 
	{ 
		e->Delete(); 
	} 
	return NULL; 
}