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- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992-1998 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and related
- // electronic documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
-
- #include "stdafx.h"
-
- #ifdef AFX_CORE1_SEG
- #pragma code_seg(AFX_CORE1_SEG)
- #endif
-
- #ifdef _DEBUG
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
-
- #define new DEBUG_NEW
-
- /////////////////////////////////////////////////////////////////////////////
- // _AfxConvertDialogUnitsToPixels
-
- AFX_STATIC void AFXAPI _AfxConvertDialogUnitsToPixels(LPCTSTR pszFontFace, WORD wFontSize,
- int cxDlg, int cyDlg, SIZE* pSizePixel)
- {
- // Attempt to create the font to be used in the dialog box
- UINT cxSysChar, cySysChar;
- LOGFONT lf;
- HDC hDC = ::GetDC(NULL);
- memset(&lf, 0, sizeof(LOGFONT));
- lf.lfHeight = -MulDiv(wFontSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
- lf.lfWeight = FW_NORMAL;
- lf.lfCharSet = DEFAULT_CHARSET;
- lstrcpy(lf.lfFaceName, pszFontFace);
-
- HFONT hNewFont = CreateFontIndirect(&lf);
- if (hNewFont != NULL)
- {
- HFONT hFontOld = (HFONT)SelectObject(hDC, hNewFont);
- TEXTMETRIC tm;
- GetTextMetrics(hDC, &tm);
- cySysChar = tm.tmHeight + tm.tmExternalLeading;
- SIZE size;
- ::GetTextExtentPoint32(hDC,
- _T("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"), 52,
- &size);
- cxSysChar = (size.cx + 26) / 52;
- SelectObject(hDC, hFontOld);
- DeleteObject(hNewFont);
- }
- else
- {
- // Could not create the font so just use the system's values
- cxSysChar = LOWORD(GetDialogBaseUnits());
- cySysChar = HIWORD(GetDialogBaseUnits());
- }
- ::ReleaseDC(NULL, hDC);
-
- // Translate dialog units to pixels
- pSizePixel->cx = MulDiv(cxDlg, cxSysChar, 4);
- pSizePixel->cy = MulDiv(cyDlg, cySysChar, 8);
- }
-
- /////////////////////////////////////////////////////////////////////////////
- // IsDialogEx
-
- AFX_STATIC inline BOOL IsDialogEx(const DLGTEMPLATE* pTemplate)
- {
- return ((DLGTEMPLATEEX*)pTemplate)->signature == 0xFFFF;
- }
-
- /////////////////////////////////////////////////////////////////////////////
- // HasFont
-
- AFX_STATIC inline BOOL HasFont(const DLGTEMPLATE* pTemplate)
- {
- return (DS_SETFONT &
- (IsDialogEx(pTemplate) ? ((DLGTEMPLATEEX*)pTemplate)->style :
- pTemplate->style));
- }
-
- /////////////////////////////////////////////////////////////////////////////
- // FontAttrSize
-
- AFX_STATIC inline int FontAttrSize(BOOL bDialogEx)
- {
- return sizeof(WORD) * (bDialogEx ? 3 : 1);
- }
-
- /////////////////////////////////////////////////////////////////////////////
- // CDialogTemplate - implementation class
-
- CDialogTemplate::CDialogTemplate(const DLGTEMPLATE* pTemplate)
- {
- if (pTemplate == NULL)
- {
- m_hTemplate = NULL;
- m_dwTemplateSize = 0;
- m_bSystemFont = FALSE;
- }
- else
- {
- SetTemplate(pTemplate, GetTemplateSize(pTemplate));
- }
- }
-
- CDialogTemplate::CDialogTemplate(HGLOBAL hTemplate)
- {
- if (hTemplate == NULL)
- {
- m_hTemplate = NULL;
- m_dwTemplateSize = 0;
- m_bSystemFont = FALSE;
- }
- else
- {
- DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(hTemplate);
- SetTemplate(pTemplate, GetTemplateSize(pTemplate));
- GlobalUnlock(hTemplate);
- }
- }
-
- BOOL CDialogTemplate::SetTemplate(const DLGTEMPLATE* pTemplate, UINT cb)
- {
- m_dwTemplateSize = cb;
-
- if ((m_hTemplate = GlobalAlloc(GPTR, m_dwTemplateSize + LF_FACESIZE * 2)) == NULL)
- return FALSE;
- DLGTEMPLATE* pNew = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
- memcpy((BYTE*)pNew, pTemplate, (size_t)m_dwTemplateSize);
-
- m_bSystemFont = (::HasFont(pNew) == 0);
-
- GlobalUnlock(m_hTemplate);
- return TRUE;
- }
-
- CDialogTemplate::~CDialogTemplate()
- {
- if (m_hTemplate != NULL)
- GlobalFree(m_hTemplate);
- }
-
- BOOL CDialogTemplate::Load(LPCTSTR lpDialogTemplateID)
- {
- HINSTANCE hInst = AfxFindResourceHandle(lpDialogTemplateID, RT_DIALOG);
- if (hInst == NULL)
- return FALSE;
- HRSRC hRsrc = FindResource(hInst, lpDialogTemplateID, RT_DIALOG);
- if (hRsrc == NULL)
- return FALSE;
- HGLOBAL hTemplate = LoadResource(hInst, hRsrc);
- DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)LockResource(hTemplate);
- SetTemplate(pTemplate, (UINT)SizeofResource(hInst, hRsrc));
- UnlockResource(hTemplate);
- FreeResource(hTemplate);
- return TRUE;
- }
-
- HGLOBAL CDialogTemplate::Detach()
- {
- HGLOBAL hTmp = m_hTemplate;
- m_hTemplate = NULL;
- return hTmp;
- }
-
- BOOL CDialogTemplate::HasFont() const
- {
- DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
- BOOL bHasFont = ::HasFont(pTemplate);
- GlobalUnlock(m_hTemplate);
- return bHasFont;
- }
-
- inline WCHAR* _SkipString(WCHAR* p)
- {
- while (*p++);
- return p;
- }
-
- BYTE* AFX_CDECL CDialogTemplate::GetFontSizeField(const DLGTEMPLATE* pTemplate)
- {
- BOOL bDialogEx = IsDialogEx(pTemplate);
- WORD* pw;
-
- if (bDialogEx)
- pw = (WORD*)((DLGTEMPLATEEX*)pTemplate + 1);
- else
- pw = (WORD*)(pTemplate + 1);
-
- if (*pw == (WORD)-1) // Skip menu name string or ordinal
- pw += 2; // WORDs
- else
- while(*pw++);
-
- if (*pw == (WORD)-1) // Skip class name string or ordinal
- pw += 2; // WORDs
- else
- while(*pw++);
-
- while (*pw++); // Skip caption string
-
- return (BYTE*)pw;
- }
-
- 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)pb + 3) & ~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
- pb += sizeof(WORD) + cbExtra;
- --nCtrl;
- }
-
- return pb - (BYTE*)pTemplate;
- }
-
- 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) || defined(OLE2ANSI)
- // 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::GetFont(CString& strFace, WORD& nFontSize) const
- {
- ASSERT(m_hTemplate != NULL);
-
- DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
- BOOL bResult = GetFont(pTemplate, strFace, nFontSize);
- GlobalUnlock(m_hTemplate);
- return bResult;
- }
-
- 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);
-
- WORD nCtrl = bDialogEx ? (WORD)((DLGTEMPLATEEX*)pTemplate)->cDlgItems :
- (WORD)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;
- }
-
- BOOL CDialogTemplate::SetSystemFont(WORD wSize)
- {
- LPCTSTR pszFace = _T("System");
- WORD wDefSize = 10;
- HFONT hFont = (HFONT)::GetStockObject(DEFAULT_GUI_FONT);
- if (hFont == NULL)
- hFont = (HFONT)::GetStockObject(SYSTEM_FONT);
- if (hFont != NULL)
- {
- LOGFONT lf;
- if (::GetObject(hFont, sizeof(LOGFONT), &lf) != 0)
- {
- pszFace = lf.lfFaceName;
- HDC hDC = ::GetDC(NULL);
- if (lf.lfHeight < 0)
- lf.lfHeight = -lf.lfHeight;
- wDefSize = (WORD)MulDiv(lf.lfHeight, 72, GetDeviceCaps(hDC, LOGPIXELSY));
- ::ReleaseDC(NULL, hDC);
- }
- }
-
- if (wSize == 0)
- wSize = wDefSize;
-
- return SetFont(pszFace, wSize);
- }
-
- void CDialogTemplate::GetSizeInDialogUnits(SIZE* pSize) const
- {
- ASSERT(m_hTemplate != NULL);
- ASSERT_POINTER(pSize, SIZE);
-
- DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalLock(m_hTemplate);
-
- if (IsDialogEx(pTemplate))
- {
- pSize->cx = ((DLGTEMPLATEEX*)pTemplate)->cx;
- pSize->cy = ((DLGTEMPLATEEX*)pTemplate)->cy;
- }
- else
- {
- pSize->cx = pTemplate->cx;
- pSize->cy = pTemplate->cy;
- }
-
- GlobalUnlock(m_hTemplate);
- }
-
- void CDialogTemplate::GetSizeInPixels(SIZE* pSize) const
- {
- ASSERT(m_hTemplate != NULL);
- ASSERT_POINTER(pSize, SIZE);
-
- if (m_bSystemFont)
- {
- GetSizeInDialogUnits(pSize);
- DWORD dwDLU = GetDialogBaseUnits();
- pSize->cx = (pSize->cx * LOWORD(dwDLU)) / 4;
- pSize->cy = (pSize->cy * HIWORD(dwDLU)) / 8;
- }
- else
- {
- CString strFace;
- WORD wSize;
- GetFont(strFace, wSize);
-
- SIZE size;
- GetSizeInDialogUnits(&size);
- _AfxConvertDialogUnitsToPixels(strFace, wSize, size.cx, size.cy, pSize);
- }
- }
-