bcmenu.cpp

一个非常好的词法分析程序,加上语法的分析是一个难得一见的好实例

*/

void BCMenu::MeasureItem( LPMEASUREITEMSTRUCT lpMIS )
{
	UINT state = (((BCMenuData*)(lpMIS->itemData))->nFlags);
	int BCMENU_PAD=4;
	if(IsLunaMenuStyle()&&xp_draw_3D_bitmaps)BCMENU_PAD=7;
	if(state & MF_SEPARATOR){
		lpMIS->itemWidth = 0;
		int temp = GetSystemMetrics(SM_CYMENU)>>1;
		if(IsLunaMenuStyle())
			lpMIS->itemHeight = 3;
		else
			lpMIS->itemHeight = temp>(m_iconY+BCMENU_PAD)/2 ? temp : (m_iconY+BCMENU_PAD)/2;
	}
	else{
		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);
		
		// Obtain the width of the text:
		CWnd *pWnd = AfxGetMainWnd();            // Get main window
		if (pWnd == NULL) pWnd = CWnd::GetDesktopWindow();
		CDC *pDC = pWnd->GetDC();              // Get device context
		CFont* pFont=NULL;    // Select menu font in...
		
		if (IsNewShell())
			pFont = pDC->SelectObject (&m_fontMenu);// Select menu font in...
        
		//Get pointer to text SK
		const wchar_t *lpstrText = ((BCMenuData*)(lpMIS->itemData))->GetWideString();//SK: we use const to prevent misuse
		    
		SIZE size;
		size.cx=size.cy=0;
		
		if (Win32s!=g_Shell)
			VERIFY(::GetTextExtentPoint32W(pDC->m_hDC,lpstrText,
			wcslen(lpstrText),&size)); //SK should also work on 95
#ifndef UNICODE //can't be UNICODE for Win32s
		else{//it's Win32suckx
			RECT rect;
			rect.left=rect.top=0;
			size.cy=DrawText(pDC->m_hDC,(LPCTSTR)lpstrText,
				wcslen(lpstrText),&rect,
				DT_SINGLELINE|DT_LEFT|DT_VCENTER|DT_CALCRECT);
			//+3 makes at least three pixels space to the menu border
			size.cx=rect.right-rect.left+3;
			size.cx += 3*(size.cx/wcslen(lpstrText));
		}
#endif    
		
		CSize t = CSize(size);
		if(IsNewShell())
			pDC->SelectObject (pFont);  // Select old font in
		pWnd->ReleaseDC(pDC);  // Release the DC
		
		// Set width and height:
		
		if(IsLunaMenuStyle())lpMIS->itemWidth = m_iconX+BCMENU_PAD+8+t.cx;
		else lpMIS->itemWidth = m_iconX + t.cx + m_iconX + BCMENU_GAP;
		int temp = GetSystemMetrics(SM_CYMENU);
		lpMIS->itemHeight = temp>m_iconY+BCMENU_PAD ? temp : m_iconY+BCMENU_PAD;
		m_fontMenu.DeleteObject();
	}
}

void BCMenu::SetIconSize (int width, int height)
{
	m_iconX = width;
	m_iconY = height;
}

BOOL BCMenu::AppendODMenuA(LPCSTR lpstrText,UINT nFlags,UINT nID,
                           int nIconNormal)
{
	USES_CONVERSION;
	return AppendODMenuW(A2W(lpstrText),nFlags,nID,nIconNormal);//SK: See MFC Tech Note 059
}


BOOL BCMenu::AppendODMenuW(wchar_t *lpstrText,UINT nFlags,UINT nID,
                           int nIconNormal)
{
	// Add the MF_OWNERDRAW flag if not specified:
	if(!nID){
		if(nFlags&MF_BYPOSITION)nFlags=MF_SEPARATOR|MF_OWNERDRAW|MF_BYPOSITION;
		else nFlags=MF_SEPARATOR|MF_OWNERDRAW;
	}
	else if(!(nFlags & MF_OWNERDRAW))nFlags |= MF_OWNERDRAW;
	
	if(nFlags & MF_POPUP){
		m_AllSubMenus.Add((HMENU)nID);
		m_SubMenus.Add((HMENU)nID);
	}
	
	BCMenuData *mdata = new BCMenuData;
	m_MenuList.Add(mdata);
	mdata->SetWideString(lpstrText);    //SK: modified for dynamic allocation
	
	mdata->menuIconNormal = -1;
	mdata->xoffset = -1;
	
	if(nIconNormal>=0){
		CImageList bitmap;
		int xoffset=0;
		LoadFromToolBar(nID,nIconNormal,xoffset);
		if(mdata->bitmap){
			mdata->bitmap->DeleteImageList();
			mdata->bitmap=NULL;
		}
		bitmap.Create(m_iconX,m_iconY,ILC_COLORDDB|ILC_MASK,1,1);
		if(AddBitmapToImageList(&bitmap,nIconNormal)){
			mdata->global_offset = AddToGlobalImageList(&bitmap,xoffset,nID);
		}
	}
	else mdata->global_offset = GlobalImageListOffset(nID);

	mdata->nFlags = nFlags;
	mdata->nID = nID;
	BOOL returnflag=CMenu::AppendMenu(nFlags, nID, (LPCTSTR)mdata);
	if(m_loadmenu)RemoveTopLevelOwnerDraw();
	return(returnflag);
}

BOOL BCMenu::AppendODMenuA(LPCSTR lpstrText,UINT nFlags,UINT nID,
                           CImageList *il,int xoffset)
{
	USES_CONVERSION;
	return AppendODMenuW(A2W(lpstrText),nFlags,nID,il,xoffset);
}

BOOL BCMenu::AppendODMenuW(wchar_t *lpstrText,UINT nFlags,UINT nID,
                           CImageList *il,int xoffset)
{
	// Add the MF_OWNERDRAW flag if not specified:
	if(!nID){
		if(nFlags&MF_BYPOSITION)nFlags=MF_SEPARATOR|MF_OWNERDRAW|MF_BYPOSITION;
		else nFlags=MF_SEPARATOR|MF_OWNERDRAW;
	}
	else if(!(nFlags & MF_OWNERDRAW))nFlags |= MF_OWNERDRAW;
	
	if(nFlags & MF_POPUP){
		m_AllSubMenus.Add((HMENU)nID);
		m_SubMenus.Add((HMENU)nID);
	}
	
	BCMenuData *mdata = new BCMenuData;
	m_MenuList.Add(mdata);
	mdata->SetWideString(lpstrText);    //SK: modified for dynamic allocation
	
	if(il){
		mdata->menuIconNormal = 0;
		mdata->xoffset=0;
		if(mdata->bitmap)mdata->bitmap->DeleteImageList();
		else mdata->bitmap=new(CImageList);
		ImageListDuplicate(il,xoffset,mdata->bitmap);
	}
	else{
		mdata->menuIconNormal = -1;
		mdata->xoffset = -1;
	}
	mdata->nFlags = nFlags;
	mdata->nID = nID;
	return(CMenu::AppendMenu(nFlags, nID, (LPCTSTR)mdata));
}

BOOL BCMenu::InsertODMenuA(UINT nPosition,LPCSTR lpstrText,UINT nFlags,UINT nID,
                           int nIconNormal)
{
	USES_CONVERSION;
	return InsertODMenuW(nPosition,A2W(lpstrText),nFlags,nID,nIconNormal);
}


BOOL BCMenu::InsertODMenuW(UINT nPosition,wchar_t *lpstrText,UINT nFlags,UINT nID,
                           int nIconNormal)
{
	if(!(nFlags & MF_BYPOSITION)){
		int iPosition =0;
		BCMenu* pMenu = FindMenuOption(nPosition,iPosition);
		if(pMenu){
			return(pMenu->InsertODMenuW(iPosition,lpstrText,nFlags|MF_BYPOSITION,nID,nIconNormal));
		}
		else return(FALSE);
	}
	
	if(!nID)nFlags=MF_SEPARATOR|MF_OWNERDRAW|MF_BYPOSITION;
	else if(!(nFlags & MF_OWNERDRAW))nFlags |= MF_OWNERDRAW;

	int menustart=0;

	if(nFlags & MF_POPUP){
		if(m_loadmenu){
			menustart=GetMenuStart();
			if(nPosition<(UINT)menustart)menustart=0;
		}
		m_AllSubMenus.Add((HMENU)nID);
		m_SubMenus.Add((HMENU)nID);
	}

	//Stephane Clog suggested adding this, believe it or not it's in the help 
	if(nPosition==(UINT)-1)nPosition=GetMenuItemCount();
	
	BCMenuData *mdata = new BCMenuData;
	m_MenuList.InsertAt(nPosition-menustart,mdata);
	mdata->SetWideString(lpstrText);    //SK: modified for dynamic allocation
	
	mdata->menuIconNormal = nIconNormal;
	mdata->xoffset=-1;
	if(nIconNormal>=0){
		CImageList bitmap;
		int xoffset=0;
		LoadFromToolBar(nID,nIconNormal,xoffset);
		if(mdata->bitmap){
			mdata->bitmap->DeleteImageList();
			mdata->bitmap=NULL;
		}
		bitmap.Create(m_iconX,m_iconY,ILC_COLORDDB|ILC_MASK,1,1);
		if(AddBitmapToImageList(&bitmap,nIconNormal)){
			mdata->global_offset = AddToGlobalImageList(&bitmap,xoffset,nID);
		}
	}
	else mdata->global_offset = GlobalImageListOffset(nID);
	mdata->nFlags = nFlags;
	mdata->nID = nID;
	BOOL returnflag=CMenu::InsertMenu(nPosition,nFlags,nID,(LPCTSTR)mdata);
	if(m_loadmenu)RemoveTopLevelOwnerDraw();
	return(returnflag);
}

BOOL BCMenu::InsertODMenuA(UINT nPosition,LPCSTR lpstrText,UINT nFlags,UINT nID,
                           CImageList *il,int xoffset)
{
	USES_CONVERSION;
	return InsertODMenuW(nPosition,A2W(lpstrText),nFlags,nID,il,xoffset);
}

BOOL BCMenu::InsertODMenuW(UINT nPosition,wchar_t *lpstrText,UINT nFlags,UINT nID,
                           CImageList *il,int xoffset)
{
	if(!(nFlags & MF_BYPOSITION)){
		int iPosition =0;
		BCMenu* pMenu = FindMenuOption(nPosition,iPosition);
		if(pMenu){
			return(pMenu->InsertODMenuW(iPosition,lpstrText,nFlags|MF_BYPOSITION,nID,il,xoffset));
		}
		else return(FALSE);
	}
	
	if(!nID)nFlags=MF_SEPARATOR|MF_OWNERDRAW|MF_BYPOSITION;
	else if(!(nFlags & MF_OWNERDRAW))nFlags |= MF_OWNERDRAW;
	
	if(nFlags & MF_POPUP){
		m_AllSubMenus.Add((HMENU)nID);
		m_SubMenus.Add((HMENU)nID);
	}
	
	//Stephane Clog suggested adding this, believe it or not it's in the help 
	if(nPosition==(UINT)-1)nPosition=GetMenuItemCount();
	
	BCMenuData *mdata = new BCMenuData;
	m_MenuList.InsertAt(nPosition,mdata);
	mdata->SetWideString(lpstrText);    //SK: modified for dynamic allocation
	
	mdata->menuIconNormal = -1;
	mdata->xoffset = -1;

	if(il){
		if(mdata->bitmap){
			mdata->bitmap->DeleteImageList();
			mdata->bitmap=NULL;
		}
		mdata->global_offset = AddToGlobalImageList(il,xoffset,nID);
	}
	mdata->nFlags = nFlags;
	mdata->nID = nID;
	return(CMenu::InsertMenu(nPosition,nFlags,nID,(LPCTSTR)mdata));
}

BOOL BCMenu::ModifyODMenuA(const char * lpstrText,UINT nID,int nIconNormal)
{
	USES_CONVERSION;
	return ModifyODMenuW(A2W(lpstrText),nID,nIconNormal);//SK: see MFC Tech Note 059
}

BOOL BCMenu::ModifyODMenuW(wchar_t *lpstrText,UINT nID,int nIconNormal)
{
	int nLoc;
	BCMenuData *mdata;
	CArray<BCMenu*,BCMenu*>bcsubs;
	CArray<int,int&>bclocs;
	
	// Find the old BCMenuData structure:
	BCMenu *psubmenu = FindMenuOption(nID,nLoc);
	do{
		if(psubmenu && nLoc>=0)mdata = psubmenu->m_MenuList[nLoc];
		else{
			// Create a new BCMenuData structure:
			mdata = new BCMenuData;
			m_MenuList.Add(mdata);
		}
		
		ASSERT(mdata);
		if(lpstrText)
			mdata->SetWideString(lpstrText);  //SK: modified for dynamic allocation
		mdata->menuIconNormal = -1;
		mdata->xoffset = -1;
		if(nIconNormal>=0){
			CImageList bitmap;
			int xoffset=0;
			LoadFromToolBar(nID,nIconNormal,xoffset);
			if(mdata->bitmap){
				mdata->bitmap->DeleteImageList();
				mdata->bitmap=NULL;
			}
			bitmap.Create(m_iconX,m_iconY,ILC_COLORDDB|ILC_MASK,1,1);
			if(AddBitmapToImageList(&bitmap,nIconNormal)){
				mdata->global_offset = AddToGlobalImageList(&bitmap,xoffset,nID);
			}
		}
		else mdata->global_offset = GlobalImageListOffset(nID);
		mdata->nFlags &= ~(MF_BYPOSITION);
		mdata->nFlags |= MF_OWNERDRAW;
		mdata->nID = nID;
		bcsubs.Add(psubmenu);
		bclocs.Add(nLoc);
		if(psubmenu && nLoc>=0)psubmenu = FindAnotherMenuOption(nID,nLoc,bcsubs,bclocs);
		else psubmenu=NULL;
	}while(psubmenu);
	return (CMenu::ModifyMenu(nID,mdata->nFlags,nID,(LPCTSTR)mdata));
}

BOOL BCMenu::ModifyODMenuA(const char * lpstrText,UINT nID,CImageList *il,int xoffset)
{
	USES_CONVERSION;
	return ModifyODMenuW(A2W(lpstrText),nID,il,xoffset);
}

BOOL BCMenu::ModifyODMenuW(wchar_t *lpstrText,UINT nID,CImageList *il,int xoffset)
{
	int nLoc;
	BCMenuData *mdata;
	CArray<BCMenu*,BCMenu*>bcsubs;
	CArray<int,int&>bclocs;
	
	// Find the old BCMenuData structure:
	BCMenu *psubmenu = FindMenuOption(nID,nLoc);
	do{
		if(psubmenu && nLoc>=0)mdata = psubmenu->m_MenuList[nLoc];
		else{
			// Create a new BCMenuData structure:
			mdata = new BCMenuData;
			m_MenuList.Add(mdata);
		}
		
		ASSERT(mdata);
		if(lpstrText)
			mdata->SetWideString(lpstrText);  //SK: modified for dynamic allocation
		mdata->menuIconNormal = -1;
		mdata->xoffset = -1;
		if(il){
			if(mdata->bitmap){
				mdata->bitmap->DeleteImageList();
				mdata->bitmap=NULL;
			}
			mdata->global_offset = AddToGlobalImageList(il,xoffset,nID);
		}
		mdata->nFlags &= ~(MF_BYPOSITION);
		mdata->nFlags |= MF_OWNERDRAW;
		mdata->nID = nID;
		bcsubs.Add(psubmenu);
		bclocs.Add(nLoc);
		if(psubmenu && nLoc>=0)psubmenu = FindAnotherMenuOption(nID,nLoc,bcsubs,bclocs);
		else psubmenu=NULL;
	}while(psubmenu);
	return (CMenu::ModifyMenu(nID,mdata->nFlags,nID,(LPCTSTR)mdata));
}

BOOL BCMenu::ModifyODMenuA(const char * lpstrText,UINT nID,CBitmap *bmp)
{
	USES_CONVERSION;
	return ModifyODMenuW(A2W(lpstrText),nID,bmp);
}

BOOL BCMenu::ModifyODMenuW(wchar_t *lpstrText,UINT nID,CBitmap *bmp)
{
	if(bmp){
		CImageList temp;
		temp.Create(m_iconX,m_iconY,ILC_COLORDDB|ILC_MASK,1,1);
		if(m_bitmapBackgroundFlag)temp.Add(bmp,m_bitmapBackground);
		else temp.Add(bmp,GetSysColor(COLOR_3DFACE));
		return ModifyODMenuW(lpstrText,nID,&temp,0);
	}
	return ModifyODMenuW(lpstrText,nID,NULL,0);
}

// courtesy of Warren Stevens
BOOL BCMenu::ModifyODMenuA(const char * lpstrText,UINT nID,COLORREF fill,COLORREF border,int hatchstyle,CSize *pSize)
{
	USES_CONVERSION;
	return ModifyODMenuW(A2W(lpstrText),nID,fill,border,hatchstyle,pSize);
}

BOOL BCMenu::ModifyODMenuW(wchar_t *lpstrText,UINT nID,COLORREF fill,COLORREF border,int hatchstyle,CSize *pSize)
{
	CWnd *pWnd = AfxGetMainWnd();            // Get main window
	CDC *pDC = pWnd->GetDC();              // Get device context
	SIZE sz;
	if(!pSize){
		sz.cx = m_iconX;
		sz.cy = m_iconY;
	}
	else{
		sz.cx = pSize->cx;
		sz.cy = pSize->cy;
	}
	CSize bitmap_size(sz);
	CSize icon_size(m_iconX,m_iconY);
	CBitmap bmp;
	ColorBitmap(pDC,bmp,bitmap_size,icon_size,fill,border,hatchstyle);		
	pWnd->ReleaseDC(pDC);
	return ModifyODMenuW(lpstrText,nID,&bmp);
}


BOOL BCMenu::ModifyODMenuA(const char *lpstrText,const char *OptionText,
                           int nIconNormal)
{
	USES_CONVERSION;
	return ModifyODMenuW(A2W(lpstrText),A2W(OptionText),nIconNormal);//SK: see MFC  Tech Note 059
}

BOOL BCMenu::ModifyODMenuW(wchar_t *lpstrText,wchar_t *OptionText,
                           int nIconNormal)
{
	BCMenuData *mdata;
	
	// Find the old BCMenuData structure:
	CString junk=OptionText;
	mdata=FindMenuOption(OptionText);
	if(mdata){
		if(lpstrText)
			mdata->SetWideString(lpstrText);//SK: modified for dynamic allocation
		mdata->menuIconNormal = nIconNormal;
		mdata->xoffset=-1;
		if(nIconNormal>=0){
			mdata->xoffset=0;
			if(mdata->bitmap)mdata->bitmap->DeleteImageList();
			else mdata->bitmap=new(CImageList);
			mdata->bitmap->Create(m_iconX,m_iconY,ILC_COLORDDB|ILC_MASK,1,1);
			if(!AddBitmapToImageList(mdata->bitmap,nIconNormal)){
				mdata->bitmap->DeleteImageList();
				delete mdata->bitmap;
				mdata->bitmap=NULL;