bcmenu.cpp

这是书上的代码

    else{
      m_MenuList[i]->nFlags=MF_STRING|MF_BYPOSITION;
      ModifyMenu(i,MF_STRING|MF_BYPOSITION,m_MenuList[i]->nID,str);
    }
  }
  
  return(TRUE);
}

void BCMenu::InsertSpaces(void)
{
  int i,j,numitems,maxlength;
  CString string,newstring;
  CSize t;
  CFont m_fontMenu;
  LOGFONT m_lf;

  ZeroMemory ((PVOID) &m_lf,sizeof (LOGFONT));
  NONCLIENTMETRICS nm;
  nm.cbSize = sizeof (NONCLIENTMETRICS);
  VERIFY (SystemParametersInfo (SPI_GETNONCLIENTMETRICS,nm.cbSize,&nm,0)); 
  m_lf =  nm.lfMenuFont;
  m_fontMenu.CreateFontIndirect (&m_lf);

  CWnd *pWnd = AfxGetMainWnd();  
  CDC *pDC = pWnd->GetDC();
  CFont* pFont = pDC->SelectObject (&m_fontMenu);
  
  numitems=GetMenuItemCount();
  maxlength = -1;
  for(i=0;i<numitems;++i){
    string=m_MenuList[i]->GetString();
    j=string.Find((char)9);
    newstring.Empty();
    if(j!=-1)newstring.Left(j);
    else newstring=string;
    newstring+=" ";
    LPCTSTR lpstrText = (LPCTSTR)newstring;
    t=pDC->GetTextExtent(lpstrText,_tcslen(lpstrText));
    if(t.cx>maxlength)maxlength = t.cx;
  }
  for(i=0;i<numitems;++i){
    string=m_MenuList[i]->GetString();

    j=string.Find((char)9);
    if(j!=-1){
      newstring.Empty();
      newstring=string.Left(j);
      LPCTSTR lpstrText = (LPCTSTR)(newstring);
      t=pDC->GetTextExtent(lpstrText,_tcslen(lpstrText));
      while(t.cx<maxlength){
        newstring+=' ';
        LPCTSTR lpstrText = (LPCTSTR)(newstring);
        t=pDC->GetTextExtent(lpstrText,_tcslen(lpstrText));
      }
      newstring+=string.Mid(j);
#ifdef UNICODE      
      wcscpy(m_MenuList[i]->menuText,newstring);
#else
      m_MenuList[i]->SetAnsiString(newstring);
#endif
    }
  }
  pDC->SelectObject (pFont);              // Select old font in
  AfxGetMainWnd()->ReleaseDC(pDC);       // Release the DC
  m_fontMenu.DeleteObject();
}

void BCMenu::LoadCheckmarkBitmap(int unselect, int select)
{
  if(unselect>=0 && select>=0){
    m_selectcheck=select;
    m_unselectcheck=unselect;
    if(checkmaps)checkmaps->DeleteImageList();
    else checkmaps=new(CImageList);
    checkmaps->Create(m_iconX,m_iconY,TRUE,2,1);
    AddBitmapToImageList(checkmaps,unselect);
    AddBitmapToImageList(checkmaps,select);
  }
}

BOOL BCMenu::GetMenuText(UINT id, CString& string)
{
  BOOL returnflag=FALSE;

  UINT numMenuItems = m_MenuList.GetUpperBound();
  if(id<=numMenuItems){
    string=m_MenuList[id]->GetString();
    returnflag=TRUE;
  }
  return(returnflag);
}

void BCMenu::DrawRadioDot(CDC *pDC,int x,int y,COLORREF color)
{
  CRect rcDot(x,y,x+6,y+6);
  CBrush brush;
  CPen pen;
  brush.CreateSolidBrush(color);
  pen.CreatePen(PS_SOLID,0,color);
  pDC->SelectObject(&brush);
  pDC->SelectObject(&pen);
  pDC->Ellipse(&rcDot);
  pen.DeleteObject();
  brush.DeleteObject();
}

void BCMenu::DrawCheckMark(CDC* pDC,int x,int y,COLORREF color)
{
  pDC->SetPixel(x,y+2,color);
  pDC->SetPixel(x,y+3,color);
  pDC->SetPixel(x,y+4,color);

  pDC->SetPixel(x+1,y+3,color);
  pDC->SetPixel(x+1,y+4,color);
  pDC->SetPixel(x+1,y+5,color);

  pDC->SetPixel(x+2,y+4,color);
  pDC->SetPixel(x+2,y+5,color);
  pDC->SetPixel(x+2,y+6,color);

  pDC->SetPixel(x+3,y+3,color);
  pDC->SetPixel(x+3,y+4,color);
  pDC->SetPixel(x+3,y+5,color);

  pDC->SetPixel(x+4,y+2,color);
  pDC->SetPixel(x+4,y+3,color);
  pDC->SetPixel(x+4,y+4,color);

  pDC->SetPixel(x+5,y+1,color);
  pDC->SetPixel(x+5,y+2,color);
  pDC->SetPixel(x+5,y+3,color);

  pDC->SetPixel(x+6,y,color);
  pDC->SetPixel(x+6,y+1,color);
  pDC->SetPixel(x+6,y+2,color);
}

BCMenuData *BCMenu::FindMenuList(UINT nID)
{
  for(int i=0;i<=m_MenuList.GetUpperBound();++i){
    if(m_MenuList[i]->nID==nID && !m_MenuList[i]->syncflag){
      m_MenuList[i]->syncflag=1;
      return(m_MenuList[i]);
    }
  }
  return(NULL);
}

void BCMenu::InitializeMenuList(int value)
{
  for(int i=0;i<=m_MenuList.GetUpperBound();++i)
    m_MenuList[i]->syncflag=value;
}

void BCMenu::DeleteMenuList(void)
{
  for(int i=0;i<=m_MenuList.GetUpperBound();++i){
    if(!m_MenuList[i]->syncflag){
      delete m_MenuList[i];
    }
  }
}

void BCMenu::SynchronizeMenu(void)
{
  CTypedPtrArray<CPtrArray, BCMenuData*> temp;
  BCMenuData *mdata;
  CString string;
  UINT submenu,nID,state,j;

  InitializeMenuList(0);
  for(j=0;j<GetMenuItemCount();++j){
    mdata=NULL;
    state=GetMenuState(j,MF_BYPOSITION);
    if(state&MF_POPUP){
      submenu=(UINT)GetSubMenu(j)->m_hMenu;
      mdata=FindMenuList(submenu);
      GetMenuString(j,string,MF_BYPOSITION);
      if(!mdata)mdata=NewODMenu(j,
        state|MF_BYPOSITION|MF_POPUP|MF_OWNERDRAW,submenu,string);
      else if(string.GetLength()>0)
#ifdef UNICODE
        wcscpy(mdata->menuText,string);//SK
#else
        mdata->SetAnsiString(string);
#endif
    }
    else if(state&MF_SEPARATOR){
      mdata=FindMenuList(0);
      if(!mdata)mdata=NewODMenu(j,
        state|MF_BYPOSITION|MF_SEPARATOR|MF_OWNERDRAW,0,"");
      else ModifyMenu(j,mdata->nFlags,nID,(LPCTSTR)mdata);
    }
    else{
      nID=GetMenuItemID(j);
      mdata=FindMenuList(nID);
      GetMenuString(j,string,MF_BYPOSITION);
      if(!mdata)mdata=NewODMenu(j,state|MF_BYPOSITION|MF_OWNERDRAW,
        nID,string);
      else{
        mdata->nFlags=state|MF_BYPOSITION|MF_OWNERDRAW;
        if(string.GetLength()>0)
#ifdef UNICODE
            wcscpy(mdata->menuText,string);//SK
#else
            mdata->SetAnsiString(string);
#endif
            
        ModifyMenu(j,mdata->nFlags,nID,(LPCTSTR)mdata);
      }
    }
    if(mdata)temp.Add(mdata);
  }
  DeleteMenuList();
  m_MenuList.RemoveAll();
  m_MenuList.Append(temp);
  temp.RemoveAll(); 
}

void BCMenu::UpdateMenu(CMenu *pmenu)
{
#ifdef _CPPRTTI 
  BCMenu *psubmenu = dynamic_cast<BCMenu *>(pmenu);
#else
  BCMenu *psubmenu = (BCMenu *)pmenu;
#endif
  if(psubmenu)psubmenu->SynchronizeMenu();
}

LRESULT BCMenu::FindKeyboardShortcut(UINT nChar, UINT nFlags,
                                     CMenu *pMenu)
{
#ifdef _CPPRTTI 
  BCMenu *pBCMenu = dynamic_cast<BCMenu *>(pMenu);
#else
  BCMenu *pBCMenu = (BCMenu *)pMenu;
#endif
  if(pBCMenu && nFlags&MF_POPUP){
    CString key('&',2);
    key.SetAt(1,(TCHAR)nChar);
    key.MakeLower();
    CString menutext;
    int menusize = (int)pBCMenu->GetMenuItemCount();
    if(menusize!=(pBCMenu->m_MenuList.GetUpperBound()+1))
      pBCMenu->SynchronizeMenu();
    for(int i=0;i<menusize;++i){
      if(pBCMenu->GetMenuText(i,menutext)){
        menutext.MakeLower();
        if(menutext.Find(key)>=0)return(MAKELRESULT(i,2));
      }
    }
  }
  return(0);
}

void BCMenu::DitherBlt (HDC hdcDest, int nXDest, int nYDest, int nWidth, 
                        int nHeight, HBITMAP hbm, int nXSrc, int nYSrc)
{
  ASSERT(hdcDest && hbm);
  ASSERT(nWidth > 0 && nHeight > 0);
  
  // Create a generic DC for all BitBlts
  HDC hDC = CreateCompatibleDC(hdcDest);
  ASSERT(hDC);
  
  if (hDC)
  {
    // Create a DC for the monochrome DIB section
    HDC bwDC = CreateCompatibleDC(hDC);
    ASSERT(bwDC);
    
    if (bwDC)
    {
      // Create the monochrome DIB section with a black and white palette
      struct {
        BITMAPINFOHEADER bmiHeader; 
        RGBQUAD      bmiColors[2]; 
      } RGBBWBITMAPINFO = {
        
        {    // a BITMAPINFOHEADER
          sizeof(BITMAPINFOHEADER),  // biSize 
            nWidth,         // biWidth; 
            nHeight,        // biHeight; 
            1,            // biPlanes; 
            1,            // biBitCount 
            BI_RGB,         // biCompression; 
            0,            // biSizeImage; 
            0,            // biXPelsPerMeter; 
            0,            // biYPelsPerMeter; 
            0,            // biClrUsed; 
            0            // biClrImportant; 
        },    
        {
          { 0x00, 0x00, 0x00, 0x00 }, { 0xFF, 0xFF, 0xFF, 0x00 }
        } 
      };
      VOID *pbitsBW;
      HBITMAP hbmBW = CreateDIBSection(bwDC,
        (LPBITMAPINFO)&RGBBWBITMAPINFO, DIB_RGB_COLORS, &pbitsBW, NULL, 0);
      ASSERT(hbmBW);
      
      if (hbmBW)
      {
        // Attach the monochrome DIB section and the bitmap to the DCs
        HBITMAP olddib = (HBITMAP)SelectObject(bwDC, hbmBW);
        SelectObject(hDC, hbm);
        
        // BitBlt the bitmap into the monochrome DIB section
        BitBlt(bwDC, 0, 0, nWidth, nHeight, hDC, nXSrc, nYSrc, SRCCOPY);
        
        // Paint the destination rectangle in gray
        FillRect(hdcDest, CRect(nXDest, nYDest, nXDest + nWidth, nYDest +
          nHeight), GetSysColorBrush(COLOR_3DFACE));
        
        // BitBlt the black bits in the monochrome bitmap into COLOR_3DHILIGHT
        // bits in the destination DC
        // The magic ROP comes from the Charles Petzold's book
        HBRUSH hb = CreateSolidBrush(GetSysColor(COLOR_3DHILIGHT));
        HBRUSH oldBrush = (HBRUSH)SelectObject(hdcDest, hb);
        BitBlt(hdcDest,nXDest+1,nYDest+1,nWidth,nHeight,bwDC,0,0,0xB8074A);
        
        // BitBlt the black bits in the monochrome bitmap into COLOR_3DSHADOW
        // bits in the destination DC
        hb = CreateSolidBrush(GetSysColor(COLOR_3DSHADOW));
        DeleteObject(SelectObject(hdcDest, hb));
        BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight,bwDC,0,0,0xB8074A);
        DeleteObject(SelectObject(hdcDest, oldBrush));
        VERIFY(DeleteObject(SelectObject(bwDC, olddib)));
      }
      
      VERIFY(DeleteDC(bwDC));
    }
    
    VERIFY(DeleteDC(hDC));
  }
}

int BCMenu::AddBitmapToImageList(CImageList *bmplist,UINT nResourceID)
{
  int bReturn;

  HBITMAP hbmp=LoadSysColorBitmap(nResourceID);
  if(hbmp){
    CBitmap bmp;
    bmp.Attach(hbmp);
    if(m_bitmapBackgroundFlag) bReturn=bmplist->Add(&bmp,m_bitmapBackground);
    else bReturn=bmplist->Add(&bmp,GetSysColor(COLOR_3DFACE));
    bmp.Detach();
  }
  else bReturn = -1;
  return(bReturn);
}

void BCMenu::SetBitmapBackground(COLORREF color)
{
  m_bitmapBackground=color;
  m_bitmapBackgroundFlag=TRUE;
}

void BCMenu::UnSetBitmapBackground(void)
{
  m_bitmapBackgroundFlag=FALSE;
}

// Given a toolbar, append all the options from it to this menu
// Passed a ptr to the toolbar object and the toolbar ID
// Author : Robert Edward Caldecott
void BCMenu::AddFromToolBar(CToolBar* pToolBar, int nResourceID)
{
  for (int i = 0; i < pToolBar->GetCount(); i++) {
    UINT nID = pToolBar->GetItemID(i);
    // See if this toolbar option
    // appears as a command on this
    // menu or is a separator
    if (nID == 0 || GetMenuState(nID, MF_BYCOMMAND) == 0xFFFFFFFF)
      continue; // Item doesn't exist
    UINT nStyle;
    int nImage;
    // Get the toolbar button info
    pToolBar->GetButtonInfo(i, nID, nStyle, nImage);
    // OK, we have the command ID of the toolbar
    // option, and the tollbar bitmap offset
    int nLoc;
    BCMenuData* pData;
    BCMenu *pSubMenu = FindMenuOption(nID, nLoc);
    if (pSubMenu && nLoc >= 0)pData = pSubMenu->m_MenuList[nLoc];
    else {
      // Create a new BCMenuData structure
      pData = new BCMenuData;
      m_MenuList.Add(pData);
    }
    // Set some default structure members
    pData->menuIconNormal = nResourceID;
    pData->nID = nID;
    pData->nFlags =  MF_BYCOMMAND | MF_OWNERDRAW;
    pData->xoffset = nImage;
    if (pData->bitmap)pData->bitmap->DeleteImageList();
    else pData->bitmap = new CImageList;
    pData->bitmap->Create(m_iconX, m_iconY,ILC_COLORDDB|ILC_MASK, 1, 1);
    AddBitmapToImageList(pData->bitmap, nResourceID);
    // Modify our menu
    ModifyMenu(nID,pData->nFlags,nID,(LPCTSTR)pData);
  }
}

BOOL BCMenu::Draw3DCheckmark(CDC *dc, const CRect& rc,
                             BOOL bSelected, HBITMAP hbmCheck)
{
  CRect rcDest = rc;
  CBrush brush;
  COLORREF col=GetSysColor(bSelected?COLOR_MENU:COLOR_3DLIGHT);
  brush.CreateSolidBrush(col);
  dc->FillRect(rcDest,&brush);
  brush.DeleteObject();
  dc->DrawEdge(&rcDest, BDR_SUNKENOUTER, BF_RECT);
  if (!hbmCheck)DrawCheckMark(dc,rc.left+4,rc.top+4,GetSysColor(COLOR_MENUTEXT));
  else DrawRadioDot(dc,rc.left+5,rc.top+4,GetSysColor(COLOR_MENUTEXT));
  return TRUE;
}

void BCMenu::DitherBlt2(CDC *drawdc, int nXDest, int nYDest, int nWidth, 
                        int nHeight, CBitmap &bmp, int nXSrc, int nYSrc)
{
	// create a monochrome memory DC
	CDC ddc;
	ddc.CreateCompatibleDC(0);
  CBitmap bwbmp;
	bwbmp.CreateCompatibleBitmap(&ddc, nWidth, nHeight);
	CBitmap * pddcOldBmp = ddc.SelectObject(&bwbmp);

  CDC dc;
	dc.CreateCompatibleDC(0);
  CBitmap * pdcOldBmp = dc.SelectObject(&bmp);
	
	// build a mask
	ddc.PatBlt(0, 0, nWidth, nHeight, WHITENESS);
	dc.SetBkColor(GetSysColor(COLOR_BTNFACE));
	ddc.BitBlt(0, 0, nWidth, nHeight, &dc, nXSrc,nYSrc, SRCCOPY);
	dc.SetBkColor(GetSysColor(COLOR_BTNHILIGHT));
	ddc.BitBlt(0, 0, nWidth, nHeight, &dc, nXSrc,nYSrc, SRCPAINT);

	// Copy the image from the toolbar into the memory DC
	// and draw it (grayed) back into the toolbar.
	dc.FillSolidRect(0,0, nWidth, nHeight, GetSysColor(COLOR_BTNFACE));
	dc.SetBkColor(RGB(0, 0, 0));
	dc.SetTextColor(RGB(255, 255, 255));
	CBrush brShadow, brHilight;
	brHilight.CreateSolidBrush(GetSysColor(COLOR_BTNHILIGHT));
	brShadow.CreateSolidBrush(GetSysColor(COLOR_BTNSHADOW));
	CBrush * pOldBrush = dc.SelectObject(&brHilight);
	dc.BitBlt(0,0, nWidth, nHeight, &ddc, 0, 0, 0x00E20746L);
	drawdc->BitBlt(nXDest+1,nYDest+1,nWidth, nHeight, &dc,0,0,SRCCOPY);
	dc.BitBlt(1,1, nWidth, nHeight, &ddc, 0, 0, 0x00E20746L);
	dc.SelectObject(&brShadow);
	dc.BitBlt(0,0, nWidth, nHeight, &ddc, 0, 0, 0x00E20746L);
	drawdc->BitBlt(nXDest,nYDest,nWidth, nHeight, &dc,0,0,SRCCOPY);
	// reset DCs
	ddc.SelectObject(pddcOldBmp);
	ddc.DeleteDC();
	dc.SelectObject(pOldBrush);
	dc.SelectObject(pdcOldBmp);
	dc.DeleteDC();

	bwbmp.DeleteObject();
}

void BCMenu::SetDisableOldStyle(void)
{
  disable_old_style=TRUE;
}

void BCMenu::UnSetDisableOldStyle(void)
{
  disable_old_style=FALSE;
}

BOOL BCMenu::GetDisableOldStyle(void)
{
  return(disable_old_style);
}


HBITMAP BCMenu::LoadSysColorBitmap(int nResourceId)
{
  HINSTANCE hInst = 
    AfxFindResourceHandle(MAKEINTRESOURCE(nResourceId),RT_BITMAP);
  HRSRC hRsrc = 
    ::FindResource(hInst,MAKEINTRESOURCE(nResourceId),RT_BITMAP);
	if (hRsrc == NULL)
		return NULL;
	return AfxLoadSysColorBitmap(hInst, hRsrc, FALSE);
}


//*************************************************************************