www.pudn.com > aa.rar > CAutoFont.cpp

// 
// CAutoFont.cpp 
// 
 
#include  
#include "CAutoFont.h" 
 
//////////////////////////////////////////////////////////////////////////////// 
CAutoFont::CAutoFont() 
{ 
	mDC      = NULL; 
	mNewFont = NULL; 
	mOldFont = NULL; 
	DefaultFont(); 
} 
 
CAutoFont::CAutoFont(LOGFONT inFont) 
{ 
	mDC      = NULL; 
	mNewFont = NULL; 
	mOldFont = NULL; 
	CreateFont(inFont); 
} 
 
CAutoFont::~CAutoFont() 
{ 
	RestoreToDC(); 
} 
 
void CAutoFont::DefaultFont(void) 
{ 
	mLogFont.lfHeight      = -12; 
	mLogFont.lfWidth       = 0; 
	// Specifies the angle in tenths of degrees 
	// If rotation font required, lfEscapement and lfOrientation must be the same 
	mLogFont.lfEscapement  = 0; 
	mLogFont.lfOrientation = 0; 
	mLogFont.lfWeight      = FW_NORMAL; 
	mLogFont.lfItalic      = 0; 
	mLogFont.lfUnderline   = 0; 
	mLogFont.lfStrikeOut   = 0; 
	mLogFont.lfCharSet        = ANSI_CHARSET; 
	mLogFont.lfOutPrecision   = OUT_DEFAULT_PRECIS; 
	mLogFont.lfClipPrecision  = CLIP_DEFAULT_PRECIS; 
	mLogFont.lfQuality        = PROOF_QUALITY; 
	mLogFont.lfPitchAndFamily = VARIABLE_PITCH | FF_ROMAN; 
	strcpy(mLogFont.lfFaceName, "Arial"); 
} 
 
void CAutoFont::CreateFont(LOGFONT inFont) 
{ 
	RestoreToDC(); 
 
	mLogFont = inFont; 
	mNewFont = CreateFontIndirect(&mLogFont); 
} 
 
void CAutoFont::CreateFont(const char * inFaceName) 
{ 
	RestoreToDC(); 
 
	strcpy(mLogFont.lfFaceName, inFaceName); 
	mNewFont = CreateFontIndirect(&mLogFont); 
} 
 
void CAutoFont::CreateStockObject(int inIndex) 
{ 
	RestoreToDC(); 
 
	// It is not necessary to delete stock objects by calling DeleteObject, 
	// but it is not harmful. 
	if (inIndex >= OEM_FIXED_FONT && inIndex <= DEFAULT_GUI_FONT) 
	{ 
		mNewFont = (HFONT) GetStockObject(inIndex); 
	} 
} 
 
void CAutoFont::SelectToDC(HDC inTargetDC) 
{ 
	if (inTargetDC && mNewFont) 
	{ 
		mDC      = inTargetDC; 
		mOldFont = (HFONT) SelectObject(mDC, mNewFont); 
	}	 
} 
 
void CAutoFont::RestoreToDC(void) 
{ 
	if (mOldFont && mDC) 
	{ 
		SelectObject(mDC, mOldFont); 
		mOldFont = NULL; 
	} 
	if (mNewFont) 
	{ 
		DeleteObject(mNewFont); 
		mNewFont = NULL; 
	} 
}