combolistctrl.cpp

功能主要是串口通信和网络通信方面的

	if (bEnable)
	{
		m_dwDropDownCtrlStyle |= WS_VSCROLL;
	}
	else
	{
		m_dwDropDownCtrlStyle &= ~WS_VSCROLL;
	}
}

void CComboListCtrl::ScrollToView(int iColumnIndex, /*int iOffSet, */CRect& robCellRect)
{
	// Now scroll if we need to expose the column
	CRect rcClient;
	GetClientRect(&rcClient);

	int iColumnWidth = GetColumnWidth(iColumnIndex);

	// Get the column iOffset
	int iOffSet = 0;
	for (int iIndex_ = 0; iIndex_ < iColumnIndex; iIndex_++)
	{
		iOffSet += GetColumnWidth(iIndex_);
	}

	// If x1 of cell rect is < x1 of ctrl rect or
	// If x1 of cell rect is > x1 of ctrl rect or **Should not ideally happen**
	// If the width of the cell extends beyond x2 of ctrl rect then
	// Scroll

	CSize obScrollSize(0, 0);

	if (((iOffSet + robCellRect.left) < rcClient.left) || 
		((iOffSet + robCellRect.left) > rcClient.right))
	{
		obScrollSize.cx = iOffSet + robCellRect.left;
	}
	else if ((iOffSet + robCellRect.left + iColumnWidth) > rcClient.right)
	{
		obScrollSize.cx = iOffSet + robCellRect.left + iColumnWidth - rcClient.right;
	}

	Scroll(obScrollSize);
	robCellRect.left -= obScrollSize.cx;
	
	// Set the width to the column width
	robCellRect.left += iOffSet;
	robCellRect.right = robCellRect.left + iColumnWidth;
}

void CComboListCtrl::OnBeginLabelEdit(NMHDR* pNMHDR, LRESULT* pResult) 
{
	LV_DISPINFO* pDispInfo = (LV_DISPINFO*)pNMHDR;
	// TODO: Add your control notification handler code here
	if (IsReadOnly(pDispInfo->item.iSubItem))
	{
		*pResult = 1;
		return;
	}

	*pResult = 0;
}

int CComboListCtrl::InsertColumn(int nCol,LPCTSTR lpszColumnHeading,int nFormat ,int nWidth,int nSubItem)
{
	m_iColumnCounts++;
	return CListCtrl::InsertColumn( nCol, lpszColumnHeading, nFormat, nWidth, nSubItem);
}

int CComboListCtrl::GetColumnCounts()
{
	return m_iColumnCounts;
}

void CComboListCtrl::DeleteAllColumn()
{
	for(int i=0;i<m_iColumnCounts;i++)
	{
		DeleteColumn(0);
	}
}

//add by w_x_liu
void CComboListCtrl::PreSubclassWindow() 
{
	// TODO: Add your specialized code here and/or call the base class
	edit.Create(WS_CHILD|WS_CLIPSIBLINGS|WS_EX_TOOLWINDOW|WS_BORDER,
		CRect(0,40,10,50),this,1001);

	CListCtrl::PreSubclassWindow();
}

void CComboListCtrl::ShowEdit()
{
	CRect rect;
	GetSubItemRect(row,col,LVIR_LABEL,rect);
	CString str;
	str = GetItemText(row,col);
	edit.MoveWindow(rect);
	edit.SetWindowText(str);
	edit.ShowWindow(SW_SHOW);
	edit.SetSel(0,100);
	edit.SetFocus();
	UpdateWindow();
}

BOOL CComboListCtrl::DisposeEdit()
{
	CString sLabel;
	edit.GetWindowText(sLabel);
	this->SetItemText(row,col,sLabel);
	ItemInfo *myItem = new ItemInfo;
	myItem->row = row;
	myItem->col = col;
	myItem->strText = sLabel;
	GetParent()->SendMessage(WM_VALIDATE_EDIT, GetDlgCtrlID(), (LPARAM)myItem);//
	if (col == 1)
	{
		if (!sLabel.IsEmpty() && atoi(sLabel) < 1000)
		{
			//MessageBox("节点编号小于1000");
			MessageBox("无效的节点编号，\r\n节点编号在1000-65536之间，\r\n请重新输入节点编号，\r\n否则此节点信息将不被保存", "温馨提示",\
				MB_ICONASTERISK | MB_ICONINFORMATION);
			return FALSE;
		}

		if (!sLabel.IsEmpty())
		{
			if (IsExistNodeNo(sLabel))
			{
				MessageBox("该节点编号已经存在于列表中，\r\n请重新输入节点编号，\r\n否则此节点信息将不被保存", "温馨提示", MB_ICONASTERISK | MB_ICONINFORMATION);
				//ShowEdit();
				return FALSE;
			}
		}
	}
//	MessageBox("abc");
	edit.ShowWindow(SW_HIDE);
	::SendMessage(this->GetParent()->GetSafeHwnd(),NULL,NULL,NULL);
	return true;
}

BOOL CComboListCtrl::IsExistNodeNo(CString str)
{
	//
	int num = 0;
	int nCount = this->GetItemCount();
	for (int k = 0; k < nCount; k++)
	{
		if (this->GetItemText(k, 1) == str)
		{
			num++;
			if (num == 2)
			{
				return TRUE;
				break;
			}
		}
	}

	return FALSE;
}

void CComboListCtrl::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	int iColumnIndex = -1;
	int iRowIndex = -1;
	
	// Get the current column and row
	if (!HitTestEx(point, &iRowIndex, &iColumnIndex))
	{
		return;
	}

//	CToolTipCtrl ttc;
//	ttc.Create(this, TTS_ALWAYSTIP);
	CListCtrl::OnMouseMove(nFlags, point);
}



//////////////////////////////////////////////////////////////////////////

int CComboListCtrl::OnToolHitTest(CPoint point, TOOLINFO * pTI) const {

   //See if the point falls onto a list item
	//UINT nFlags = 0;

	LVHITTESTINFO lvhitTestInfo;

	lvhitTestInfo.pt	= point;

	int nItem = ListView_SubItemHitTest(
			this->m_hWnd,
			&lvhitTestInfo);
	int nSubItem = lvhitTestInfo.iSubItem;

	UINT nFlags =   lvhitTestInfo.flags;

   //nFlags is 0 if the SubItemHitTest fails
   //Therefore, 0 & <anything> will equal false
   if (nFlags & m_wHitMask){
      //If it did fall on a list item,
      //and it was also hit one of the
      //item specific sub-areas we wish to show tool tips for

      //Get the client (area occupied by this control
      RECT rcClient;
      GetClientRect( &rcClient );

      //Fill in the TOOLINFO structure
      pTI->hwnd = m_hWnd;
      pTI->uId = (UINT) (nItem * 100 + nSubItem);
      pTI->lpszText = LPSTR_TEXTCALLBACK;
      pTI->rect = rcClient;

      return pTI->uId; //By returning a unique value per listItem,
                       //we ensure that when the mouse moves over another list item,
                       //the tooltip will change
   }else{
      //Otherwise, we aren't interested, so let the message propagate
      return -1;
   }
}

BOOL CComboListCtrl::OnToolTipText( UINT id, NMHDR * pNMHDR, LRESULT * pResult ){
	//Handle both ANSI and UNICODE versions of the message
	TOOLTIPTEXTA* pTTTA = (TOOLTIPTEXTA*)pNMHDR;
	TOOLTIPTEXTW* pTTTW = (TOOLTIPTEXTW*)pNMHDR;

	//Ignore messages from the built in tooltip, we are processing them internally
	if( (pNMHDR->idFrom == (UINT)m_hWnd) &&
		 ( ((pNMHDR->code == TTN_NEEDTEXTA) && (pTTTA->uFlags & TTF_IDISHWND)) ||
         ((pNMHDR->code == TTN_NEEDTEXTW) && (pTTTW->uFlags & TTF_IDISHWND)) ) ){
      return FALSE;
   }


   *pResult = 0;

	CString strTipText;

	//Get the mouse position
	const MSG* pMessage;
   pMessage = GetCurrentMessage();
	ASSERT ( pMessage );
   CPoint pt;
   pt = pMessage->pt; //Get the point from the message
	ScreenToClient( &pt ); //Convert the point's coords to be relative to this control

   //See if the point falls onto a list item

	LVHITTESTINFO lvhitTestInfo;

	lvhitTestInfo.pt	= pt;

	int nItem = SubItemHitTest(&lvhitTestInfo);
	int nSubItem = lvhitTestInfo.iSubItem;

	UINT nFlags =   lvhitTestInfo.flags;

   //nFlags is 0 if the SubItemHitTest fails
   //Therefore, 0 & <anything> will equal false
   if( nFlags & m_wHitMask ){
	  //If it did fall on a list item,
      //and it was also hit one of the
      //item specific sub-areas we wish to show tool tips for

      //Lookup the list item's text in the ToolTip Map

	  CString strKey;

	  strKey.Format(_T("%d"),  nItem * 100 + nSubItem);

      if( m_ToolTipMap.Lookup(strKey, strTipText ) ){
         //If there was a CString associated with the list item,
         //copy it's text (up to 80 characters worth, limitation of the TOOLTIPTEXT structure)
         //into the TOOLTIPTEXT structure's szText member

         //Deal with UNICODE
      #ifndef _UNICODE
	      if (pNMHDR->code == TTN_NEEDTEXTA)
		      lstrcpyn(pTTTA->szText, strTipText, 80);
	      else
		      _mbstowcsz(pTTTW->szText, strTipText, 80);
      #else
	      if (pNMHDR->code == TTN_NEEDTEXTA)
		      _wcstombsz(pTTTA->szText, strTipText, 80);
	      else
		      lstrcpyn(pTTTW->szText, strTipText, 80);
      #endif
         return FALSE;    //We found a tool tip,
                         //tell the framework this message has been handled

////////////////////////////////////////////////////////////////////////////////
// ****** Special note *****
//
// Still don't understand why the function must return FALSE for CListCtrl
// so as not to cause flickering, as opposed to Nate Maynard's derivation
// from CTreeCtrl.
// I have experimented with disabling Tooltips for the control
// and found out that a "ghost" tooltip appears for a fraction of a second...
//
// I am completely at a loss...
// Seems to work, though...
//
////////////////////////////////////////////////////////////////////////////////
							
      }
   }

   return FALSE; //We didn't handle the message,
                 //let the framework continue propagating the message
}

//Sets the tooltip text for a specific item
BOOL CComboListCtrl::SetItemToolTipText( int nItem, int nSubItem, LPCTSTR lpszToolTipText ){

  CString strKey;

  strKey.Format(_T("%d"),  nItem * 100 + nSubItem);

  m_ToolTipMap.SetAt( strKey, lpszToolTipText );

  return TRUE;

}

//Retrieve the tooltip text for a specific list item
CString CComboListCtrl::GetItemToolTipText( int nItem, int nSubItem){

  CString itemToolTipText;

  CString strKey;

  strKey.Format(_T("%d"),  nItem * 100 + nSubItem);


  if( !m_ToolTipMap.Lookup( strKey, itemToolTipText ) ){
     itemToolTipText = "";
  }

  return itemToolTipText;
}


WORD CComboListCtrl::SetToolTipHitMask( WORD wHitMask ){
   WORD oldHitMask = m_wHitMask;

   m_wHitMask = wHitMask;

   return oldHitMask;
}

void CComboListCtrl::DeleteAllToolTips()
{
   m_ToolTipMap.RemoveAll();
}

BOOL CComboListCtrl::DeleteAllItems( ){
	//Call the base class method
	BOOL retVal = CListCtrl::DeleteAllItems();

	if( retVal ){
		//If it succeeded, remove all tooltips
		  DeleteAllToolTips();
	}

	return retVal;
}

BOOL CComboListCtrl::DeleteItem( int nItem ){

    //Call the base class method
    BOOL retVal = CListCtrl::DeleteItem( nItem );

    if( retVal ){
		//If it succeeded, remove it's tooltip from the map

		LVCOLUMN *lvColumn = (LVCOLUMN*) malloc (sizeof(LVCOLUMN));

		for (int i = 0; GetColumn(i, lvColumn) != 0; i++);
		{
			CString strKey;

			strKey.Format(_T("%d"),  nItem * 100 + i);

			m_ToolTipMap.RemoveKey( strKey );
		}
    }

	return retVal;
}