bcmenu.cpp

一个功能挺多的

//
//Modify by 徐景周 2000.10
//功能：位图菜单显示效果
//

#include "stdafx.h"        // Standard windows header file
#include "BCMenu.h"        // BCMenu class declaration
#include <afxpriv.h>       //SK: makes A2W and other spiffy AFX macros work

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#define GAP 1
#ifndef OBM_CHECK
#define OBM_CHECK 32760 // from winuser.h
#endif

#if _MFC_VER <0x400
#error This code does not work on Versions of MFC prior to 4.0
#endif

static CPINFO CPInfo;

enum Win32Type{
Win32s,
Windoze95,
WinNT3,
WinNT4orHigher
};


Win32Type IsShellType()
{
  Win32Type  ShellType;
  DWORD winVer;
  OSVERSIONINFO *osvi;

  winVer=GetVersion();
  if(winVer<0x80000000){/*NT */
    ShellType=WinNT3;
    osvi= (OSVERSIONINFO *)malloc(sizeof(OSVERSIONINFO));
    if (osvi!=NULL){
      memset(osvi,0,sizeof(OSVERSIONINFO));
      osvi->dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
      GetVersionEx(osvi);
      if (osvi->dwMajorVersion>=4L)
        ShellType=WinNT4orHigher;//yup, it is NT 4 or higher!
      free(osvi);
    }
  }
  else if  (LOBYTE(LOWORD(winVer))<4)
    ShellType=Win32s;/*Win32s*/
  else
    ShellType=Windoze95;/*Windoze95*/
  return ShellType;
}

static Win32Type g_Shell=IsShellType();

void BCMenuData::SetAnsiString(LPCSTR szAnsiString)
{
USES_CONVERSION;
SetWideString(A2W(szAnsiString));  //SK:  see MFC Tech Note 059
}

CString BCMenuData::GetString(void)//returns the menu text in ANSI or UNICODE
//depending on the MFC-Version we are using
{
CString strText;
if (m_szMenuText)
    {
#ifdef UNICODE
    strText = m_szMenuText;
#else
USES_CONVERSION;
    strText=W2A(m_szMenuText);     //SK:  see MFC Tech Note 059
#endif    
    }
return strText;
}

CTypedPtrArray<CPtrArray, HMENU> BCMenu::m_AllSubMenus;  // Stores list of all sub-menus

/*
 
===============================================================================
  BCMenu::BCMenu()
  TCMeny::~BCMenu()
  -----------------

  Constructor and Destructor.
 
===============================================================================
*/

BCMenu::BCMenu()
{
  m_bDynIcons = FALSE;     // O.S. - no dynamic icons by default
  disable_old_style=FALSE;
  m_iconX = 32;            // Icon sizes default to 16 x 16
  m_iconY = 32;            //32*32 ...
  m_selectcheck = -1;
  m_unselectcheck = -1;
  checkmaps=NULL;
  checkmapsshare=FALSE;
  // set the color used for the transparent background in all bitmaps
  m_bitmapBackground=RGB(192,192,192); //gray
  m_bitmapBackgroundFlag=FALSE;
  GetCPInfo(CP_ACP,&CPInfo);
}


BCMenu::~BCMenu()
{
  DestroyMenu();
}

BOOL BCMenu::IsNewShell ()
{
return (Windoze95==g_Shell || WinNT4orHigher==g_Shell);
}


BCMenuData::~BCMenuData()
{
  if(bitmap)
    delete(bitmap);

  delete[] m_szMenuText; //Need not check for NULL because ANSI X3J16 allows "delete NULL"
}


void BCMenuData::SetWideString(const wchar_t *szWideString)
{
delete[] m_szMenuText;//Need not check for NULL because ANSI X3J16 allows "delete NULL"

if (szWideString)
    {
    m_szMenuText = new wchar_t[sizeof(wchar_t)*(wcslen(szWideString)+1)];
    if (m_szMenuText)
        wcscpy(m_szMenuText,szWideString);
    }
else
    m_szMenuText=NULL;//set to NULL so we need not bother about dangling non-NULL Ptrs
}

BOOL BCMenu::IsMenu(CMenu *submenu)
{
  int m;
  int numSubMenus = m_AllSubMenus.GetUpperBound();
  for(m=0;m<=numSubMenus;++m){
    if(submenu->m_hMenu==m_AllSubMenus[m])return(TRUE);
  }
  return(FALSE);
}

BOOL BCMenu::IsMenu(HMENU submenu)
{
  int m;
  int numSubMenus = m_AllSubMenus.GetUpperBound();
  for(m=0;m<=numSubMenus;++m){
    if(submenu==m_AllSubMenus[m])return(TRUE);
  }
  return(FALSE);
}

BOOL BCMenu::DestroyMenu()
{
  // Destroy Sub menus:
  int m,n;
  int numAllSubMenus = m_AllSubMenus.GetUpperBound();
  for(n = numAllSubMenus; n>= 0; n--){
    if(m_AllSubMenus[n]==this->m_hMenu)m_AllSubMenus.RemoveAt(n);
  }
  int numSubMenus = m_SubMenus.GetUpperBound();
  for(m = numSubMenus; m >= 0; m--){
    numAllSubMenus = m_AllSubMenus.GetUpperBound();
    for(n = numAllSubMenus; n>= 0; n--){
      if(m_AllSubMenus[n]==m_SubMenus[m])m_AllSubMenus.RemoveAt(n);
    }
    delete((BCMenu *)FromHandle(m_SubMenus[m]));
  }
  m_SubMenus.RemoveAll();
  // Destroy menu data
  int numItems = m_MenuList.GetUpperBound();
  for(m = 0; m <= numItems; m++)delete(m_MenuList[m]);
  m_MenuList.RemoveAll();
  if(checkmaps&&!checkmapsshare){
    delete checkmaps;
    checkmaps=NULL;
  }
  // Call base-class implementation last:
  return(CMenu::DestroyMenu());
};


///////////////////////////////////////////////////////////////////////////
//
// BCMenu message handlers


/*
==========================================================================
void BCMenu::DrawItem(LPDRAWITEMSTRUCT)
---------------------------------------

Called by the framework when a particular item needs to be drawn.  We
overide this to draw the menu item in a custom-fashion, including icons
and the 3D rectangle bar.
==========================================================================
*/


void BCMenu::DrawItem (LPDRAWITEMSTRUCT lpDIS)
{
  ASSERT(lpDIS != NULL);
  CDC* pDC = CDC::FromHandle(lpDIS->hDC);
  CRect rect;
  UINT state = (((BCMenuData*)(lpDIS->itemData))->nFlags);
  if(state & MF_SEPARATOR){
    rect.CopyRect(&lpDIS->rcItem);
    rect.top+=rect.Height()>>1;
    pDC->DrawEdge(&rect,EDGE_ETCHED,BF_TOP);
  }
  else{
    CRect rect2;
    BOOL standardflag=FALSE,selectedflag=FALSE,disableflag=FALSE;
    BOOL checkflag=FALSE;
    COLORREF crText = GetSysColor(COLOR_MENUTEXT);
    COLORREF m_clrBack=GetSysColor(COLOR_MENU);
    CBrush m_brBackground,m_brSelect;
    CPen m_penBack;
    int x0,y0,dy;
    int nIconNormal=-1,xoffset=-1;
    CImageList *bitmap=NULL;
    CFont m_fontMenu;
    LOGFONT m_lf;

    // set some colors and the font
    m_penBack.CreatePen (PS_SOLID,0,GetSysColor(COLOR_MENU));
    m_brBackground.CreateSolidBrush(GetSysColor(COLOR_MENU));
    m_brSelect.CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
    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);

    // draw the colored rectangle portion
  
    rect.CopyRect(&lpDIS->rcItem);
    rect2=rect;
 
    // draw the up/down/focused/disabled state

    UINT action = lpDIS->itemAction;
    UINT state = lpDIS->itemState;
    CString strText;
    LOGFONT lf;
    lf = m_lf;

    CFont dispFont;
    CFont *pFont=NULL;
      
    if(lpDIS->itemData != NULL){
      nIconNormal = (((BCMenuData*)(lpDIS->itemData))->menuIconNormal);
      xoffset = (((BCMenuData*)(lpDIS->itemData))->xoffset);
      bitmap = (((BCMenuData*)(lpDIS->itemData))->bitmap);
      strText = ((BCMenuData*) (lpDIS->itemData))->GetString();
    
      if(state&ODS_CHECKED && nIconNormal<0){
        if(state&ODS_SELECTED && m_selectcheck>0)checkflag=TRUE;
        else if(m_unselectcheck>0) checkflag=TRUE;
      }
      else if(nIconNormal != -1){
        standardflag=TRUE;
        if(state&ODS_SELECTED && !(state&ODS_GRAYED))selectedflag=TRUE;
        else if(state&ODS_GRAYED) disableflag=TRUE;
      }
    }
    else{
      strText.Empty();
    }

    if(state&ODS_SELECTED){ // draw the down edges

      CPen *pOldPen = pDC->SelectObject (&m_penBack);

      // You need only Text highlight and thats what you get
     
      if(checkflag||standardflag||selectedflag||disableflag||state&ODS_CHECKED)
        rect2.SetRect(rect.left+m_iconX+4+GAP,rect.top,rect.right,rect.bottom);
      pDC->FillRect (rect2,&m_brSelect);

      pDC->SelectObject (pOldPen);
      if((HFONT)dispFont != NULL)dispFont.DeleteObject ();
      dispFont.CreateFontIndirect (&lf);
      crText = GetSysColor(COLOR_HIGHLIGHTTEXT);
    }
    else {
      CPen *pOldPen = pDC->SelectObject (&m_penBack);
      pDC->FillRect (rect,&m_brBackground);
      pDC->SelectObject (pOldPen);

      // draw the up edges

      pDC->Draw3dRect (rect,m_clrBack,m_clrBack);
      if ((HFONT)dispFont != NULL) dispFont.DeleteObject ();
      dispFont.CreateFontIndirect (&lf); //Normal
    }

    // draw the text if there is any
    //We have to paint the text only if the image is nonexistant

    dy = (rect.Height()-4-m_iconY)/2;
    dy = dy<0 ? 0 : dy;

    if(checkflag||standardflag||selectedflag||disableflag){
      rect2.SetRect(rect.left+1,rect.top+1+dy,rect.left+m_iconX+3,
                    rect.top+m_iconY+3+dy);
      pDC->Draw3dRect (rect2,m_clrBack,m_clrBack);
      if(checkflag && checkmaps){
        pDC->FillRect (rect2,&m_brBackground);
        rect2.SetRect(rect.left,rect.top+dy,rect.left+m_iconX+4,
                      rect.top+m_iconY+4+dy);
        
				pDC->Draw3dRect (rect2,m_clrBack,m_clrBack);
        CPoint ptImage(rect.left+2,rect.top+2+dy);
       
        if(state&ODS_SELECTED)checkmaps->Draw(pDC,1,ptImage,ILD_TRANSPARENT);
        else checkmaps->Draw(pDC,0,ptImage,ILD_TRANSPARENT);
      }
      else if(disableflag){
        if(!selectedflag){
          CBitmap bitmapstandard;
          GetBitmapFromImageList(pDC,bitmap,xoffset,bitmapstandard);
          rect2.SetRect(rect.left,rect.top+dy,rect.left+m_iconX+4,
                        rect.top+m_iconY+4+dy);
          pDC->Draw3dRect (rect2,m_clrBack,m_clrBack);
          if(disable_old_style)
            DitherBlt(lpDIS->hDC,rect.left+2,rect.top+2+dy,m_iconX,m_iconY,
                     (HBITMAP)(bitmapstandard),0,0);
          else
            DitherBlt2(pDC,rect.left+2,rect.top+2+dy,m_iconX,m_iconY,
                         bitmapstandard,0,0);
          bitmapstandard.DeleteObject();
        }
      }
      else if(selectedflag){
        pDC->FillRect (rect2,&m_brBackground);
        rect2.SetRect(rect.left,rect.top+dy,rect.left+m_iconX+4,
                      rect.top+m_iconY+4+dy);
        if (IsNewShell()){
          if(state&ODS_CHECKED)
            pDC->Draw3dRect(rect2,GetSysColor(COLOR_3DSHADOW),
                            GetSysColor(COLOR_3DHILIGHT));
          else
            pDC->Draw3dRect(rect2,GetSysColor(COLOR_3DHILIGHT),
                            GetSysColor(COLOR_3DSHADOW));
        }
        CPoint ptImage(rect.left+2,rect.top+2+dy);
        if(bitmap)bitmap->Draw(pDC,xoffset,ptImage,ILD_TRANSPARENT);
      }
      else{
        if(state&ODS_CHECKED){
          CBrush brush;
          COLORREF col =GetSysColor(COLOR_3DLIGHT);
          brush.CreateSolidBrush(col);
          pDC->FillRect(rect2,&brush);
          brush.DeleteObject();
          rect2.SetRect(rect.left,rect.top+dy,rect.left+m_iconX+4,
                        rect.top+m_iconY+4+dy);
          if (IsNewShell())
            pDC->Draw3dRect(rect2,GetSysColor(COLOR_3DSHADOW),
                            GetSysColor(COLOR_3DHILIGHT));
        }
        else{
          pDC->FillRect (rect2,&m_brBackground);
          rect2.SetRect(rect.left,rect.top+dy,rect.left+m_iconX+4,
                        rect.top+m_iconY+4+dy);
          pDC->Draw3dRect (rect2,m_clrBack,m_clrBack);
        }
        CPoint ptImage(rect.left+2,rect.top+2+dy);
        if(bitmap)bitmap->Draw(pDC,xoffset,ptImage,ILD_TRANSPARENT);
      }
    }
    if(nIconNormal<0 && state&ODS_CHECKED && !checkflag){
      rect2.SetRect(rect.left+1,rect.top+2+dy,rect.left+m_iconX+1,
                    rect.top+m_iconY+2+dy);
      CMenuItemInfo info;
      info.fMask = MIIM_CHECKMARKS;
      ::GetMenuItemInfo((HMENU)lpDIS->hwndItem,lpDIS->itemID,
                      MF_BYCOMMAND, &info);
      if(state&ODS_CHECKED || info.hbmpUnchecked) {
        Draw3DCheckmark(pDC, rect2, state&ODS_SELECTED,
                        state&ODS_CHECKED ? info.hbmpChecked :
                        info.hbmpUnchecked);
      }
    }

    //This is needed always so that we can have the space for check marks

    x0=rect.left;y0=rect.top;
    rect.left = rect.left + m_iconX + 8 + GAP; 

    if(!strText.IsEmpty()){

      CRect rectt(rect.left,rect.top-1,rect.right,rect.bottom-1);

      //   Find tabs

      CString leftStr,rightStr;
      leftStr.Empty();rightStr.Empty();
      int tablocr=strText.ReverseFind(_T('\t'));
      if(tablocr!=-1){
        rightStr=strText.Mid(tablocr+1);
        leftStr=strText.Left(strText.Find(_T('\t')));
        rectt.right-=m_iconX;
      }
      else leftStr=strText;

      int iOldMode = pDC->GetBkMode();
      pDC->SetBkMode( TRANSPARENT);

      // Draw the text in the correct colour:

      UINT nFormat  = DT_LEFT|DT_SINGLELINE|DT_VCENTER;
      UINT nFormatr = DT_RIGHT|DT_SINGLELINE|DT_VCENTER;
      if(!(lpDIS->itemState & ODS_GRAYED)){
        pDC->SetTextColor(crText);
        pDC->DrawText (leftStr,rectt,nFormat);
        if(tablocr!=-1) pDC->DrawText (rightStr,rectt,nFormatr);
      }
      else{

        // Draw the disabled text
        if(!(state & ODS_SELECTED)){
          RECT offset = *rectt;
          offset.left+=1;
          offset.right+=1;
          offset.top+=1;
          offset.bottom+=1;
          pDC->SetTextColor(GetSysColor(COLOR_BTNHILIGHT));
          pDC->DrawText(leftStr,&offset, nFormat);
          if(tablocr!=-1) pDC->DrawText (rightStr,&offset,nFormatr);
          pDC->SetTextColor(GetSysColor(COLOR_GRAYTEXT));
          pDC->DrawText(leftStr,rectt, nFormat);
          if(tablocr!=-1) pDC->DrawText (rightStr,rectt,nFormatr);
        }
        else{
        // And the standard Grey text:
          pDC->SetTextColor(m_clrBack);
          pDC->DrawText(leftStr,rectt, nFormat);
          if(tablocr!=-1) pDC->DrawText (rightStr,rectt,nFormatr);
        }
      }
      pFont = pDC->SelectObject (&dispFont);
      pDC->SetBkMode( iOldMode );
      pDC->SelectObject (pFont); //set it to the old font
    }

    m_penBack.DeleteObject();
    m_brBackground.DeleteObject();
    m_fontMenu.DeleteObject();
    m_brSelect.DeleteObject();
    dispFont.DeleteObject ();
  }
}

BOOL BCMenu::GetBitmapFromImageList(CDC* pDC,CImageList *imglist,int nIndex,CBitmap &bmp)
{