BOOL CDialogTemplate::SetFont(LPCTSTR lpFaceName, WORD nFontSize)
{
ASSERT(m_hTemplate != NULL);
if (m_dwTemplateSize == 0)
return FALSE;
DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
BOOL bDialogEx = IsDialogEx(pTemplate);
BOOL bHasFont = ::HasFont(pTemplate);
int cbFontAttr = FontAttrSize(bDialogEx);
if (bDialogEx)
((DLGTEMPLATEEX*)pTemplate)->style |= DS_SETFONT;
else
pTemplate->style |= DS_SETFONT;
#ifdef _UNICODE
int cbNew = cbFontAttr + ((lstrlen(lpFaceName) + 1) * sizeof(TCHAR));
BYTE* pbNew = (BYTE*)lpFaceName;
#else
WCHAR wszFaceName [LF_FACESIZE];
int cbNew = cbFontAttr + 2 * MultiByteToWideChar(CP_ACP, 0, lpFaceName, -1, wszFaceName, LF_FACESIZE);
BYTE* pbNew = (BYTE*)wszFaceName;
#endif
BYTE* pb = GetFontSizeField(pTemplate);
int cbOld = bHasFont ? cbFontAttr + 2 * (wcslen((WCHAR*)(pb + cbFontAttr)) + 1) : 0;
BYTE* pOldControls = (BYTE*)(((DWORD)pb + cbOld + 3) & ~3);
BYTE* pNewControls = (BYTE*)(((DWORD)pb + cbNew + 3) & ~3);
BYTE nCtrl = bDialogEx ? (BYTE)((DLGTEMPLATEEX*)pTemplate)->cDlgItems :
(BYTE)pTemplate->cdit;
if (cbNew != cbOld && nCtrl > 0)
memmove(pNewControls, pOldControls, (size_t)(m_dwTemplateSize - (pOldControls - (BYTE*)pTemplate)));
*(WORD*)pb = nFontSize;
memmove(pb + cbFontAttr, pbNew, cbNew - cbFontAttr);
m_dwTemplateSize += (pNewControls - pOldControls);
GlobalUnlock(m_hTemplate);
m_bSystemFont = FALSE;
return TRUE;
}
UINT AFX_CDECL CDialogTemplate::GetTemplateSize(const DLGTEMPLATE* pTemplate)
{
BOOL bDialogEx = IsDialogEx(pTemplate);
BYTE* pb = GetFontSizeField(pTemplate);
if (::HasFont(pTemplate))
{
// Skip font size and name
pb += FontAttrSize(bDialogEx); // Skip font size, weight, (italic, charset)
pb += 2 * (wcslen((WCHAR*)pb) + 1);
}
WORD nCtrl = bDialogEx ? (WORD)((DLGTEMPLATEEX*)pTemplate)->cDlgItems :
(WORD)pTemplate->cdit;
while (nCtrl > 0)
{
pb = (BYTE*)(((DWORD_PTR)pb + 3) & ~DWORD_PTR(3)); // DWORD align
pb += (bDialogEx ? sizeof(DLGITEMTEMPLATEEX) : sizeof(DLGITEMTEMPLATE));
if (*(WORD*)pb == (WORD)-1) // Skip class name string or ordinal
pb += 2 * sizeof(WORD);
else
pb = (BYTE*)_SkipString((WCHAR*)pb);
if (*(WORD*)pb == (WORD)-1) // Skip text string or ordinal
pb += 2 * sizeof(WORD);
else
pb = (BYTE*)_SkipString((WCHAR*)pb);
WORD cbExtra = *(WORD*)pb; // Skip extra data
if (cbExtra != 0 && !bDialogEx)
cbExtra -= 2;
pb += sizeof(WORD) + cbExtra;
--nCtrl;
}
//IA64: Max dialog template size of 4GB should be fine
return UINT(pb - (BYTE*)pTemplate);
}
BOOL FDialog::IsSysFont()
{
DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
BOOL hasFont = ::HasFont(pTemplate);
GlobalUnlock(m_hTemplate);
if (!hasFont)
return FALSE;
BOOL retval=FALSE;
BYTE* pb = GetFontSizeField(pTemplate);
pb += FontAttrSize(IsDialogEx(pTemplate));
#if defined(_UNICODE) || (defined(OLE2ANSI) && !defined(_MAC))
if (lstrcmp(pb,"MS Sans Serif")==0 || lstrcmp(pb,"Helv")==0)
retval=TRUE;
#else
// Convert Unicode font name to MBCS
if (wcscmp((WCHAR *)pb,L"MS Sans Serif")==0 || wcscmp((WCHAR *)pb,L"Helv")==0)
retval=TRUE;
#endif
return retval;
}
BOOL AFX_CDECL CDialogTemplate::GetFont(const DLGTEMPLATE* pTemplate,
CString& strFace, WORD& nFontSize)
{
ASSERT(pTemplate != NULL);
if (!::HasFont(pTemplate))
return FALSE;
BYTE* pb = GetFontSizeField(pTemplate);
nFontSize = *(WORD*)pb;
pb += FontAttrSize(IsDialogEx(pTemplate));
#if defined(_UNICODE)
// Copy font name
strFace = (LPCTSTR)pb;
#else
// Convert Unicode font name to MBCS
WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)pb, -1,
strFace.GetBufferSetLength(LF_FACESIZE), LF_FACESIZE, NULL, NULL);
strFace.ReleaseBuffer();
#endif
return TRUE;
}
BOOL CDialogTemplate::SetFont(LPCTSTR lpFaceName, WORD nFontSize)
{
ASSERT(m_hTemplate != NULL);
if (m_dwTemplateSize == 0)
return FALSE;
DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
BOOL bDialogEx = IsDialogEx(pTemplate);
BOOL bHasFont = ::HasFont(pTemplate);
int cbFontAttr = FontAttrSize(bDialogEx);
if (bDialogEx)
((DLGTEMPLATEEX*)pTemplate)->style |= DS_SETFONT;
else
pTemplate->style |= DS_SETFONT;
int nFaceNameLen = lstrlen(lpFaceName);
if( nFaceNameLen >= LF_FACESIZE )
{
// Name too long
return FALSE;
}
#ifdef _UNICODE
int cbNew = cbFontAttr + ((nFaceNameLen + 1) * sizeof(TCHAR));
BYTE* pbNew = (BYTE*)lpFaceName;
#else
WCHAR wszFaceName [LF_FACESIZE];
int cbNew = cbFontAttr + 2 * MultiByteToWideChar(CP_ACP, 0, lpFaceName, -1, wszFaceName, LF_FACESIZE);
BYTE* pbNew = (BYTE*)wszFaceName;
#endif
if (cbNew < cbFontAttr)
{
return FALSE;
}
BYTE* pb = GetFontSizeField(pTemplate);
int cbOld = (int)(bHasFont ? cbFontAttr + 2 * (wcslen((WCHAR*)(pb + cbFontAttr)) + 1) : 0);
BYTE* pOldControls = (BYTE*)(((DWORD_PTR)pb + cbOld + 3) & ~DWORD_PTR(3));
BYTE* pNewControls = (BYTE*)(((DWORD_PTR)pb + cbNew + 3) & ~DWORD_PTR(3));
WORD nCtrl = bDialogEx ? (WORD)((DLGTEMPLATEEX*)pTemplate)->cDlgItems :
(WORD)pTemplate->cdit;
if (cbNew != cbOld && nCtrl > 0)
{
size_t nBuffLeftSize=(size_t)(m_dwTemplateSize - (pOldControls - (BYTE*)pTemplate));
if (nBuffLeftSize > m_dwTemplateSize)
{
return FALSE;
}
Checked::memmove_s(pNewControls,nBuffLeftSize, pOldControls, nBuffLeftSize);
}
*(WORD*)pb = nFontSize;
Checked::memmove_s(pb + cbFontAttr, cbNew - cbFontAttr, pbNew, cbNew - cbFontAttr);
//IA64: Max dialog template size of 4GB should be fine
m_dwTemplateSize += ULONG(pNewControls - pOldControls);
GlobalUnlock(m_hTemplate);
m_bSystemFont = FALSE;
return TRUE;
}
