C++ CItemInfo::GetItemText方法代码示例

void CMySuperGrid::HowToLoopThroughAllItems_if_we_wanted_to_print_them_or_what_ever(CDC *pDC)
{
	TEXTMETRIC tm;
	pDC->GetTextMetrics(&tm);
	int cy = tm.tmHeight + tm.tmExternalLeading;
	int nLineY=0;
	nLineY+=cy;

	pDC->TextOut(10, nLineY, _T("GIVE ME A BREAK YOU KNOW PRINT PREVIEW IS NOT THE ISSUE HERE"));
	nLineY+=cy;
	nLineY+=cy;
	int nIndex = GetNextItem(-1, LVNI_ALL | LVNI_SELECTED); //print from current node
	if(nIndex!=-1)
	{
		//GetHeadPosition
		POSITION pos = GetRootHeadPosition();
		while(pos != NULL)
		{
			CTreeItem *pParent =(CTreeItem*)GetNextRoot(pos); 
			CTreeItem *pItem = pParent;
			CItemInfo* lp = GetData(pParent);

			CString strData = lp->GetItemText();
			strData+='\t';
			nLineY+=cy;
			for(int nCol=0; nCol < lp->GetItemCount(); nCol++)
			{
				CString str = lp->GetSubItem(nCol);
				strData+=str;
				strData+='\t';
			}	
			pDC->TabbedTextOut(10,nLineY,strData,strData.GetLength(), 0, NULL, 0);
			nLineY+=cy;
			//GetNext ....loop through all children 
			for(;;)
			{
				CTreeItem *pCur = GetNext(pParent,pItem, TRUE, FALSE/*regardless of the item are hidden or not*/);	  

				if(!IsChildOf(pParent, pCur))
					break;
				else
				if(pCur==pItem)
					break;
				
				CItemInfo* lp = GetData(pCur);
				CString strData = lp->GetItemText();
				strData+='\t';
				for(int nCol=0; nCol < lp->GetItemCount(); nCol++)
				{
					CString str = lp->GetSubItem(nCol);
					strData+=str;
					strData+='\t';
				}	
				pDC->TabbedTextOut(10,nLineY,strData,strData.GetLength(), 0, NULL, 0);
				nLineY+=cy;
				pItem=pCur;
			}
		}
	 }
}

BOOL CMySuperGrid::OnItemLButtonDown(LVHITTESTINFO& ht)
{
	if(ht.iItem!=-1)
	{
#ifdef _WHAT_EVER_
		CTreeItem*pSelItem = GetTreeItem(ht.iItem);
		if(pSelItem!=NULL)
		{	
			CItemInfo* pInfo = GetData(pSelItem);
			if((ht.iSubItem==0) && (pInfo->GetItemText()==CString(_T("Hello World"))))
			{
				AfxMessageBox("no can do buddy");
				return 0;
			}

			for(int i=0;i<pInfo->GetItemCount(); i++)
			{
				if(i==ht.iSubItem-1)
				{
					CString str=pInfo->GetSubItem(i);
					if(str == CString(_T("Ethan Hunt"))) 
					{
						AfxMessageBox("Tom Cruise\nliked him in a few good men");
						return 0;
					}
				}
			}
		}
#endif
	}
	return 1;
}

//another search thing
CMySuperGrid::CTreeItem* CMySuperGrid::SearchEx(CTreeItem *pStartPosition, CString strItem)
{
	CItemInfo* lp = GetData(pStartPosition);
	//if(lp->GetCheck()) another condition here maybe
	CString strData = lp->GetItemText();
	if(strData==strItem)
	{
		return pStartPosition;
	}

	const int nChildren = NumChildren(pStartPosition);
	if (nChildren > 0)
	{
		POSITION pos = GetHeadPosition(pStartPosition);
		while (pos)
		{
			CTreeItem *pChild = GetNextChild(pStartPosition, pos);
			CItemInfo* lp = GetData(pChild);
			CString strData = lp->GetItemText();
			if(strData==strItem)
			{
				return pChild;
			}
		}
	}

	POSITION pos = GetHeadPosition(pStartPosition);
	while (pos)
	{
		CTreeItem *pChild = GetNextChild(pStartPosition, pos);
		CItemInfo* lp = GetData(pChild);
		CString strData = lp->GetItemText();
		if(strData==strItem)
		{
			return pChild;
		}

		pChild = SearchEx(pChild, strItem);
		if(pChild!=NULL)
			return pChild;
	}
	return NULL;
}

//HOWTO: 
void CMySuperGrid::HowToInsertItemsAfterTheGridHasBeenInitialized(int nIndex, const CString& str)
{
	CTreeItem *pSelItem = GetTreeItem(nIndex);
	if(pSelItem != NULL)
	{
		SetRedraw(0);
		BOOL bUpdate = FALSE;
		if(!IsCollapsed(pSelItem))
			bUpdate = TRUE;//Children are expanded, want to see update right away if not no visual update

		CItemInfo* lpRelative = new CItemInfo();
		lpRelative->SetItemText(str);
		lpRelative->AddSubItemText(_T("I am"));
		lpRelative->AddSubItemText(_T("now"));
		lpRelative->AddSubItemText(_T("going to insert"));
		lpRelative->AddSubItemText(_T("some items"));

		CTreeItem* pParent = InsertItem(pSelItem, lpRelative, bUpdate);
		for(int i=0; i < GetNumCol(); i++)
		{
			CItemInfo* lpItemInfo = new CItemInfo();
			CString strItem;
			strItem.Format(_T("Item %d"), i);
			//add items text
			lpItemInfo->SetItemText(strItem);
			//add subitem text
			for(int y=0;y < GetNumCol()-1; y++) 
			{
				CString str;
				str.Format(_T("SubItem %d of %s"), y, lpItemInfo->GetItemText());
				lpItemInfo->AddSubItemText(str);
			}
			//set combobox in last col
			lpItemInfo->SetControlType(lpItemInfo->CONTROLTYPE::combobox, GetNumCol()-2);
			CStringList list;
			for(int x = 0; x < 3; x++)
			{
				CString str;
				str.Format("ListItem %d",x);
				list.AddTail(str);
			}
			lpItemInfo->SetListData(GetNumCol()-2, &list);

			InsertItem(pParent, lpItemInfo);
		}
		SetRedraw(1);
		InvalidateRect(NULL);
		UpdateWindow();
	}
}

void CMySuperGrid::_DeleteAll()
{
	DeleteAll();//call CSuperGridCtrl::DeleteAll();

	//add some new data
	CItemInfo* lp = new CItemInfo();
	lp->SetImage(4);
	//add item text
	lp->SetItemText(_T("New data"));
	//Create root item
	CTreeItem * pRoot = InsertRootItem(lp);//previous we call CreateTreeCtrl(lp)
	if( pRoot == NULL )
		return;
	//insert items	
	int nCol = GetNumCol();
	for(int i=0; i < nCol; i++)
	{
		CItemInfo* lpItemInfo = new CItemInfo();
		CString strItem;
		strItem.Format(_T("Item %d"),i);
		//add items text
		lpItemInfo->SetItemText(strItem);
		//add subitem text
		for(int y=0;y < nCol-1; y++) 
		{
			CString str;
			str.Format(_T("subItem %d of %s"),y,lpItemInfo->GetItemText());
			lpItemInfo->AddSubItemText(str);
			lpItemInfo->AddSubItemText(str);
		}
		//insert the iteminfo with ParentPtr
		CTreeItem* pParent = InsertItem(pRoot, lpItemInfo);
		//other nodes
		if(i%nCol)
		{
			CTreeItem* pParent1=NULL;
			CTreeItem* pParent2=NULL;
			for(int x=0; x < nCol; x++)
			{
				CItemInfo* lpItemInfo = new CItemInfo();
				CString strItem;
				strItem.Format(_T("Item %d"),x);
				lpItemInfo->SetItemText(strItem);
				for(int z=0; z < nCol-1; z++) 
				{
					CString str;
					str.Format(_T("subItem %d of %s"),z, lpItemInfo->GetItemText());
					lpItemInfo->AddSubItemText(str);
				}
				pParent1 = InsertItem(pParent, lpItemInfo);
				
			}
		}
	}
	//expand one level
	Expand(pRoot, 0 /*listview index 0*/); 
	UINT uflag = LVIS_SELECTED | LVIS_FOCUSED;
	SetItemState(0, uflag, uflag);


}

//this is just one way to search items...strItem must match and then all subitems must be
//a match before returning the node
//the search function here search all nodes regardless if collapsed or expanded
CMySuperGrid::CTreeItem* CMySuperGrid::Search(CString strItem,...)
{
	if(!GetItemCount())
		return NULL;

	va_list args;
	va_start(args, strItem);
	int nCount=0;
	
	for(;;)
	{
		LPCTSTR lpsz = va_arg(args, LPCTSTR);
		if(lpsz==NULL)
			break;
	   nCount++;
	}


	POSITION pos = GetRootHeadPosition();
	while(pos != NULL)
	{
		CTreeItem *pParent = (CTreeItem*)GetNextRoot(pos); 
		CTreeItem *pItem = pParent;
		CItemInfo* lp = GetData(pParent);
		CString strData = lp->GetItemText();
		if(strData==strItem)//must be a match before going further...suit you self
		{
			va_start(args, strItem);
			int nResult=0;
			for(int i=0; i<nCount;i++)
			{
				LPCTSTR lpsz = va_arg(args, LPCTSTR);   
				for(int nCol=0; nCol < lp->GetItemCount(); nCol++)
				{
					CString str = lp->GetSubItem(nCol);
					if(!str.CompareNoCase(lpsz))
					{
						nResult++;
						break;
					}
				}	
			}
			va_end(args);
			if(nCount==nResult)//all args was found return node
				return pParent;
		}

		//GetNext ....loop through all children 
		for(;;)
		{
			CTreeItem *pCur = GetNext(pParent, pItem, TRUE, FALSE/*regardless of the item are hidden or not, set to TRUE if only visible items must be included in the search*/);	  
			if(!IsChildOf(pParent, pCur))
				break;
			else
			if(pCur==pItem)
				break;
			CItemInfo* lp = GetData(pCur);
			CString strData = lp->GetItemText();
			if(strData==strItem)//must be a match before going further
			{
				va_start(args, strItem);
				int nResult=0;
				for(int i=0; i<nCount;i++)
				{
					LPCTSTR lpsz = va_arg(args, LPCTSTR);   
					for(int nCol=0; nCol < lp->GetItemCount(); nCol++)
					{
						CString str = lp->GetSubItem(nCol);
						if(!str.CompareNoCase(lpsz))
						{
							nResult++;
							break;
						}
					}	
				}
				va_end(args);
				if(nCount==nResult)//all args was found return node
					return pCur;
			}
			pItem=pCur;//next;
		}
	}	
	return NULL;
}

//HOWTO: Search nodeptr that have a specific item and subitems also shows you how to select the node and delete it
void CMySuperGrid::HowToSearch_I_am_using_hardcoded_values_here_cause_I_am_tired_now(void)
{

	//one Item and two Subitems
	CTreeItem *pNode =	Search(__T("Hello World"),_T("Happy"),_T("Programming"),NULL);
	
	if(pNode!=NULL)
	{
		CItemInfo *pInfo = GetData(pNode);
		AfxMessageBox(_T("Found Item ") + pInfo->GetItemText());
	}
	else AfxMessageBox(_T("not found"));
	//one Item and one Subitem
	CTreeItem *pNode1 = Search(_T("Mission: Impossible"),_T("Allan Nielsen"),NULL);
	if(pNode1!=NULL)
	{
		CItemInfo *pInfo = GetData(pNode1);
		AfxMessageBox(_T("Found Item ") + pInfo->GetItemText());

	}
	else AfxMessageBox(_T("not found"));
	
	//one Item and one Subitem
	CTreeItem *pNode2 = Search(_T("Training Agent"),_T("Mr. Bean"),NULL);
	if(pNode2!=NULL)
	{
		CItemInfo *pInfo = GetData(pNode2);
		AfxMessageBox(_T("Found Item") + pInfo->GetItemText());
	}
	else AfxMessageBox(_T("not found"));

	CTreeItem *pNode3 = Search(_T("BC"),NULL);
	if(pNode3!=NULL)
	{
		CItemInfo *pInfo = GetData(pNode3);
		AfxMessageBox(_T("Found Item ") + pInfo->GetItemText());
		int nIndex = SelectNode(pNode3);
		if(nIndex!=-1)
		if(AfxMessageBox(_T("Do you want to delete it"),MB_OKCANCEL)==IDOK)
			DeleteItemEx(pNode3, nIndex);
	}
	else AfxMessageBox(_T("not found"));

	CTreeItem *pItem = NULL;

	POSITION pos = GetRootHeadPosition();
	while(pos != NULL)
	{
		CTreeItem * pRoot = (CTreeItem*)GetNextRoot(pos); 
		pItem = SearchEx(pRoot, "AB");
		if(pItem!=NULL)
		{
			CItemInfo *pInfo = GetData(pItem);
			AfxMessageBox(_T("Found Item ") + pInfo->GetItemText());
			int nIndex = SelectNode(pItem);
			if(nIndex!=-1)
			if(AfxMessageBox(_T("Do you want to delete it"),MB_OKCANCEL)==IDOK)
				DeleteItemEx(pItem, nIndex);
		}
	}
		
	if( pItem == NULL )
		AfxMessageBox(_T("not found"));


}

void CMySuperGrid::HowToLoopThroughAllItems_that_has_a_checkmark_and_print_them_or_what_ever(CDC *pDC)
{
	TEXTMETRIC tm;
	pDC->GetTextMetrics(&tm);
	int cy = tm.tmHeight + tm.tmExternalLeading;
	int nLineY=0;
	nLineY+=cy;

	pDC->TextOut(10,nLineY,_T("GIVE ME A BREAK YOU KNOW PRINT PREVIEW IS NOT THE ISSUE HERE"));
	nLineY+=cy;
	nLineY+=cy;
	if(!GetItemCount())
		return;

	int nIndex=0;//has to be the root 
	if(nIndex!=-1)
	{
		//do a GetHeadPosition
		POSITION pos = GetRootHeadPosition();
		while(pos != NULL)
		{
			CTreeItem *pParent = (CTreeItem*)GetNextRoot(pos); 
			CTreeItem *pItem = pParent;
			CItemInfo* lp = GetData(pParent);
			if(lp->GetCheck())//very hard :)=
			{
				CString strData=lp->GetItemText();
				strData+='\t';
				nLineY+=cy;
				for(int nCol=0; nCol < lp->GetItemCount(); nCol++)
	
				{
					CString str = lp->GetSubItem(nCol);
					strData+=str;
					strData+='\t';
				}	
				pDC->TabbedTextOut(10,nLineY,strData,strData.GetLength(), 0, NULL, 0);
				nLineY+=cy;
			}
			//GetNext ....loop through all children 
			for(;;)
			{
				CTreeItem *pCur = GetNext(pParent, pItem, TRUE, FALSE/*regardless of the item are hidden or not*/);	  
				if(!IsChildOf(pParent, pCur))
					break;
				else
				if(pCur==pItem)
					break;
				

				CItemInfo* lp = GetData(pCur);
				if(lp->GetCheck())
				{
					CString strData = lp->GetItemText();
					strData+='\t';
					for(int nCol=0; nCol < lp->GetItemCount(); nCol++)
					{
						CString str = lp->GetSubItem(nCol);
						strData+=str;
						strData+='\t';
					}	
					pDC->TabbedTextOut(10,nLineY,strData,strData.GetLength(), 0, NULL, 0);
					nLineY+=cy;
				}
				pItem=pCur;
			}
		}//while
	 }//if
}