FONT.CXX

#include <windows.h> 
#include <windowsx.h> 
#include <commdlg.h> 
#include <string.h> 
#include <memory.h> 
#include "app.h" 
 
#include "font.hxx" 
//+-------------------------------------------------------- 
// Class:       CFont 
// 
// Purpose:     Abstract a font 
// 
// History:     22-Jan-1993     asmusf  created 
//---------------------------------------------------------- 
CFont::CFont(HFONT hfont) 
{ 
    _hfont = hfont; 
    _fDel = FALSE;       // owned elsewhere 
} 
 
CFont::CFont(TCHAR *szFace, int iHeight, BOOL fBold, BOOL fItalic, BOOL fUnder) 
{ 
    LOGFONT lf; 
    _fDel = FALSE;      // not initialized 
  
    memset(&lf,0,sizeof (LOGFONT)); 
    // rude but effective: truncate 
    if( lstrlen( szFace ) > sizeof(lf.lfFaceName) ) 
    { 
        szFace[sizeof(lf.lfFaceName)] = 0; 
    } 
    lstrcpy(lf.lfFaceName, szFace); 
 
    lf.lfHeight = iHeight * 20;         // twips internal, points in API 
     
    if( fBold ) 
    { 
        lf.lfWeight = FW_BOLD; 
    } 
    lf.lfItalic = fItalic; 
    lf.lfUnderline = fUnder; 
    Create(lf); 
} 
 
BOOL CFont::Create(LOGFONT &lf) 
{ 
    if( _fDel )    
    { 
        DeleteObject(_hfont); 
        _fDel = FALSE; 
    } 
    if( _hfont = CreateFontIndirect(&lf) ) 
    { 
        _fDel = TRUE; 
        return TRUE; 
    } 
    return FALSE; 
} 
                                            
CFont::~CFont() 
{ 
    if( _fDel ) 
    { 
        DeleteObject(_hfont); 
    } 
} 
 
BOOL CFont::Update(int iHeight, BOOL fBold) 
{ 
    LOGFONT lf; 
    GetObject(_hfont, sizeof(LOGFONT), &lf); 
    lf.lfWeight = (fBold ? FW_BOLD : FW_NORMAL ); 
 
    lf.lfHeight = iHeight * 20;         // twips internal, points in API 
 
 
    return Create(lf); 
} 
 
 
BOOL CFont::Choose(HWND hwnd) 
{ 
    CHOOSEFONT cf ; 
    LOGFONT lf ; 
 
    GetObject(_hfont, sizeof(LOGFONT), &lf); 
 
 
    // match from TWIPS to LOGPIXELS used in common Dialog 
    CScreenCanvas canvas(NULL); 
    lf.lfHeight = MulDiv(lf.lfHeight,GetDeviceCaps(canvas, LOGPIXELSY),INCH1);   
     
    lf.lfCharSet = ANSI_CHARSET; 
 
    cf.lStructSize      = sizeof (CHOOSEFONT) ; 
    cf.hwndOwner        = hwnd ; 
    cf.hDC              = NULL ; 
    cf.lpLogFont        = &lf ; 
    cf.iPointSize       = 0 ; 
    cf.Flags            = CF_INITTOLOGFONTSTRUCT | CF_SCREENFONTS 
                                                 | CF_EFFECTS ; 
    cf.rgbColors        = 0L ; 
    cf.lCustData        = 0L ; 
    cf.lpfnHook         = NULL ; 
    cf.lpTemplateName   = NULL ; 
    cf.hInstance        = NULL ; 
    cf.lpszStyle        = NULL ; 
    cf.nFontType        = 0 ;               // Returned from ChooseFont 
    cf.nSizeMin         = 0 ; 
    cf.nSizeMax         = 0 ; 
 
    if( !ChooseFont (&cf) ) 
    { 
        return FALSE; 
    } 
//    MessageBox( hwnd, lf.lfFaceName, TEXT("Font Chosen"), MB_OK ); 
     
    // adjust back to using TWIPS 
    lf.lfHeight = MulDiv(lf.lfHeight,INCH1,GetDeviceCaps(canvas, LOGPIXELSY));   
    lf.lfWidth=0;               // font mapper knows best 
     
    // create the font    
    return Create(lf); 
}