supergridctrl.cpp

minica2的第2个版本

				int nItem = GetSelectedItem();
				if(nItem!=-1)
				{
					CTreeItem* pSelItem = GetTreeItem(nItem);
					if(pSelItem != NULL)
					{
						if(OnDeleteItem(pSelItem, nItem))
							DeleteItemEx(pSelItem, nItem);
					}	
				}
			}	break;


		case VK_MULTIPLY:
			{  
				int nIndex = GetSelectedItem();
				if(nIndex != -1)
				{
					CWaitCursor wait;
					SetRedraw(0);
					CTreeItem *pParent = GetTreeItem(nIndex);
					int nScroll=0;
					if(OnVKMultiply(pParent, nIndex))
					{	
						ExpandAll(pParent, nScroll);
					}		
					SetRedraw(1);
					RedrawItems(nIndex, nScroll);
					EnsureVisible(nScroll, TRUE);
				 }
			 }break;

		case VK_ADD:
			{
					int nIndex = GetSelectedItem();
					if(nIndex!=-1)
					{
						CWaitCursor wait;
						CTreeItem *pSelItem = GetTreeItem(nIndex);
						int nScrollIndex = 0;
						if(OnVKAdd(pSelItem, nIndex))
						{
							 nScrollIndex = Expand(pSelItem, nIndex);
						}
						CRect rc;
						GetItemRect(nIndex, rc, LVIR_BOUNDS);
						InvalidateRect(rc);
						UpdateWindow();
						EnsureVisible(nScrollIndex, 1);
					}

			}break;


		case VK_SUBTRACT:
			{
				int nIndex = GetSelectedItem();
				if(nIndex!=-1)
				{
					CWaitCursor wait;
					CTreeItem *pSelItem = GetTreeItem(nIndex);
					if(OnVkSubTract(pSelItem, nIndex))
					{
						Collapse(pSelItem);
					}
					CRect rc;
					GetItemRect(nIndex, rc, LVIR_BOUNDS);
					InvalidateRect(rc);
					UpdateWindow();
				}
			}break;
		default :break;
	}
	*pResult = 0;
}*/




BOOL CSuperGridCtrl::HitTestOnSign(CPoint point, LVHITTESTINFO& ht)
{
	ht.pt = point;
	// Test which subitem was clicked.
	SubItemHitTest(&ht);
	if(ht.iItem!=-1)
	{
		//first hittest on checkbox
		BOOL bHit = FALSE;
		if(GetExtendedStyle() & LVS_EX_CHECKBOXES)
		{
			if (ht.flags == LVHT_ONITEM && (GetStyle() & LVS_OWNERDRAWFIXED))//isn't this allways ownerdrawfixed :-)
			{
				CRect rcIcon,rcLabel;
				GetItemRect(ht.iItem, rcIcon, LVIR_ICON);//has to be between these two ....right :)
				GetItemRect(ht.iItem, rcLabel, LVIR_LABEL);
				// check if hit was on a state icon 
				if (point.x > rcIcon.left && point.x < rcLabel.left)
					bHit = TRUE;
			}
			else if (ht.flags & LVHT_ONITEMSTATEICON)
				bHit = TRUE;
		}

		CTreeItem* pItem = GetTreeItem(ht.iItem);
		if(pItem!=NULL)
		{
			if(bHit)//if checkbox
			{
				//yes I know..have to maintain to sets of checkstates here...
				//one for listview statemask and one for CTreeItem..but its located here so no harm done
				SetCheck(ht.iItem,!GetCheck(ht.iItem));
				CItemInfo *pInfo = GetData(pItem);
				pInfo->SetCheck(!pInfo->GetCheck());
			}
			//if haschildren and clicked on + or - then expand/collapse
			if(ItemHasChildren(pItem))
			{
				//hittest on the plus/sign "button" 
				CRect rcBounds;
				GetItemRect(ht.iItem, rcBounds, LVIR_BOUNDS);
				CRectangle rect(this, NULL, GetIndent(pItem), rcBounds);
				BOOL bRedraw=0;//if OnItemExpanding or OnCollapsing returns false, dont redraw
				if(rect.HitTest(point))
				{
					SetRedraw(0);
					int nScrollIndex=0;
					if(IsCollapsed(pItem))
					{	
						if(OnItemExpanding(pItem, ht.iItem))
						{
							nScrollIndex = Expand(pItem, ht.iItem);
							OnItemExpanded(pItem, ht.iItem);
							bRedraw=1;
						}
					}	
					else {
					   if(OnCollapsing(pItem))
					   {
							Collapse(pItem);
							OnItemCollapsed(pItem);
							bRedraw=1;
					   }
					}
					SetRedraw(1);
					if(bRedraw)
					{
						CRect rc;
						GetItemRect(ht.iItem, rc, LVIR_BOUNDS);
						InvalidateRect(rc);
						UpdateWindow();
						EnsureVisible(nScrollIndex, 1);
						return 0;
					}	
				}
			}//has kids
		}//pItem!=NULL
	}
	return 1;
}

/*void CSuperGridCtrl::OnDblclk(NMHDR* pNMHDR, LRESULT* pResult) 
{
	if( GetFocus() != this) 
		SetFocus();

	NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;

	LVHITTESTINFO ht;
	ht.pt = pNMListView->ptAction;
	SubItemHitTest(&ht);
	if(OnItemLButtonDown(ht))
	{
		BOOL bSelect=1;
		bSelect = HitTestOnSign(pNMListView->ptAction, ht);
		//normal selection
		if(bSelect && ht.iItem !=-1)
		{		
			int nIndex = GetSelectedItem();
			if(nIndex!=-1)
			{
				CTreeItem *pSelItem = GetTreeItem(nIndex);
				if (pSelItem != NULL)
				{
					BOOL bRedraw=0;
					if(ItemHasChildren(pSelItem))
					{
						SetRedraw(0);
						int nScrollIndex=0;
						if(IsCollapsed(pSelItem))
						{		
							if(OnItemExpanding(pSelItem, nIndex))
							{
								nScrollIndex = Expand(pSelItem, nIndex);
								OnItemExpanded(pSelItem, nIndex);
								bRedraw=1;
							}
						}	
					
						else 
						{
						   if(OnCollapsing(pSelItem))
						   {
								Collapse(pSelItem);
								OnItemCollapsed(pSelItem);
								bRedraw=1;
						   }
						}
						SetRedraw(1);

						if(bRedraw)
						{
							CRect rc;
							GetItemRect(nIndex,rc,LVIR_BOUNDS);
							InvalidateRect(rc);
							UpdateWindow();
							EnsureVisible(nScrollIndex,1);
						}
					}//ItemHasChildren	
				}//!=NULL
			}
		}
	}
	*pResult = 0;
}*/



/*void CSuperGridCtrl::OnBegindrag(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
	if(pNMListView->iItem != -1)
	{
		m_nDragItem = pNMListView->iItem;
		CImageList* pDragImage=NULL;
		pDragImage = CreateDragImageEx(m_nDragItem);//override this if you want another dragimage or none at all.
		if(pDragImage)
		{
			pDragImage->BeginDrag(0, CPoint(0,0));
			pDragImage->DragEnter(this, pNMListView->ptAction);
			SetCapture();
			m_bIsDragging = TRUE;
		}
		delete pDragImage;
	}
	*pResult = 0;
}*/

//Create dragimage : Icon + the itemtext
CImageList *CSuperGridCtrl::CreateDragImageEx(int nItem)
{
    CImageList *pList = new CImageList;          
	//get image index
	LV_ITEM lvItem;
	lvItem.mask =  LVIF_IMAGE;
	lvItem.iItem = nItem;
	lvItem.iSubItem = 0;
	GetItem(&lvItem);

	CRect rc;
	GetItemRect(nItem, &rc, LVIR_BOUNDS);         

	CString str;
	str = GetItemText(nItem, 0);
	CFont *pFont = GetFont();

	rc.OffsetRect(-rc.left, -rc.top);            
	rc.right = GetColumnWidth(0);                
	pList->Create(rc.Width(), rc.Height(),ILC_COLOR24| ILC_MASK , 1, 1);
	CDC *pDC = GetDC();                          
	if(pDC) 
	{
		CDC dc;	      
		dc.CreateCompatibleDC(pDC);      
		CBitmap bmpMap;
		bmpMap.CreateCompatibleBitmap(pDC, rc.Width(), rc.Height());

		CBitmap *pOldBmp = dc.SelectObject(&bmpMap);
		CFont *pOldFont = dc.SelectObject(pFont);
		dc.FillSolidRect(rc, GetSysColor(COLOR_WINDOW));
		CImageList *pImgList = GetImageList(LVSIL_SMALL);
		if(pImgList)
			pImgList->Draw(&dc, lvItem.iImage, CPoint(0,0), ILD_TRANSPARENT);
		dc.TextOut(m_cxImage + 4, 0, str);
		dc.SelectObject(pOldFont);
		dc.SelectObject(pOldBmp);                 
		bmpMap.DeleteObject(); //hpxs 添加的销毁代码
		//causes an error if the 1st column is hidden so must check the imagelist
		if(pList->m_hImageList != NULL)
			pList->Add(&bmpMap, RGB(255,255,255));
		else
		{ 
			delete pList;
			pList=NULL;
		}
		dc.DeleteDC();	//hpxs 添加的销毁DC代码
		ReleaseDC(pDC);   
	}   
	return pList;
}



/*void CSuperGridCtrl::OnMouseMove(UINT nFlags, CPoint point) 
{
    if(m_bIsDragging)
    {
		
		KillTimer(1);
		if (CWnd::GetCapture() != this)
			m_bIsDragging=0;
		
		if(nFlags==MK_RBUTTON || nFlags==MK_MBUTTON)
			m_bIsDragging=0;

		
		if(GetKeyState(VK_ESCAPE) < 0)		
			m_bIsDragging=0;
		
		if(!m_bIsDragging)//why not put this in a funtion :)
		{
			SetItemState (m_nDragTarget, 0, LVIS_DROPHILITED);
			CImageList::DragLeave(this);
			CImageList::EndDrag();
			ReleaseCapture();
			InvalidateRect(NULL);
			UpdateWindow();
		}
		else
		{
			CPoint ptList(point);
			MapWindowPoints(this, &ptList, 1);
			CImageList::DragMove(ptList);
			UINT uHitTest = LVHT_ONITEM;
			m_nDragTarget = HitTest(ptList, &uHitTest);
			// try turn off hilight for previous DROPHILITED state
			int nPrev = GetNextItem(-1,LVNI_DROPHILITED);
			if(nPrev != m_nDragTarget)//prevents flicker 
				SetItemState(nPrev, 0, LVIS_DROPHILITED);

			CRect rect;
			GetClientRect (rect);
			int cy = rect.Height();
			if(m_nDragTarget!=-1)
			{
				SetItemState(m_nDragTarget, LVIS_DROPHILITED, LVIS_DROPHILITED);
				CTreeItem* pTarget = GetTreeItem(m_nDragTarget);
				if ((point.y >= 0 && point.y <= m_cyImage) || (point.y >= cy - m_cyImage && point.y <= cy) || 	
					( pTarget!=NULL && ItemHasChildren(pTarget) && IsCollapsed(pTarget)))
				{
					SetTimer(1,300,NULL);
				}
			}
		}
    }
	CListCtrl::OnMouseMove(nFlags, point);
}*/




/*void CSuperGridCtrl::OnTimer(UINT nIDEvent) 
{
	CListCtrl::OnTimer(nIDEvent);
	if(nIDEvent==1)
	{
		if(CWnd::GetCapture()!=this)
		{
			SetItemState(m_nDragTarget, 0, LVIS_DROPHILITED);
			m_bIsDragging=0;
			CImageList::DragLeave(this);
			CImageList::EndDrag();
			ReleaseCapture();
			InvalidateRect(NULL);
			UpdateWindow();
			KillTimer(1);
			return;
		}

		SetTimer(1,300,NULL);//reset timer
		DWORD dwPos = ::GetMessagePos();
		CPoint ptList(LOWORD(dwPos),HIWORD(dwPos));
		ScreenToClient(&ptList);

		CRect rect;
		GetClientRect(rect);
		int cy = rect.Height();
		//
		// perform autoscroll if the cursor is near the top or bottom.
		//
		if (ptList.y >= 0 && ptList.y <= m_cyImage) 
		{
			int n = GetTopIndex(); 
			CImageList::DragShowNolock(0);
			SendMessage(WM_VSCROLL, MAKEWPARAM(SB_LINEUP, 0), NULL);
			CImageList::DragShowNolock(1);
			if (GetTopIndex()== n)
				KillTimer (1);
			else {
				CImageList::DragShowNolock(0);
				CImageList::DragMove(ptList);
				CImageList::DragShowNolock(1);
				return;
			}
		}
		else if (ptList.y >= cy - m_cyImage && ptList.y <= cy) 
		{
			int n = GetTopIndex(); 
			CImageList::DragShowNolock(0);
			SendMessage(WM_VSCROLL, MAKEWPARAM(SB_LINEDOWN, 0), NULL);
			CImageList::DragShowNolock(1);
			if (GetTopIndex()== n)
				KillTimer (1);
			else {
				CImageList::DragShowNolock(0);
				CImageList::DragMove(ptList);
				CImageList::DragShowNolock(1);
				return;
			}
		}
		//Hover test 
		CImageList::DragMove(ptList);
		UINT uHitTest = LVHT_ONITEM;
		m_nDragTarget = HitTest(ptList, &uHitTest);
	
		if(m_nDragTarget!=-1)
		{
			//if the target has children
			//expand them
			CTreeItem* pTarget=GetTreeItem(m_nDragTarget);
			if(pTarget != NULL && ItemHasChildren(pTarget) && IsCollapsed(pTarget) && (m_nDragItem!=-1))
			{
				CImageList::DragShowNolock(0);
				CTreeItem* pSource = GetTreeItem(m_nDragItem);
	
				SetRedraw(0);
				int nScrollIndex=0;
				if(ItemHasChildren(pTarget) && IsCollapsed(pTarget))
				{	
					if(OnItemExpanding(pTarget, m_nDragTarget))
					{	
						nScrollIndex = Expand(pTarget, m_nDragTarget);
						OnItemExpanded(pTarget, m_nDragTarget);
					}
				}		
				m_nDragItem = NodeToIndex(pSource);
				SetRedraw(1);
				EnsureVisible(nScrollIndex, 1);
				InvalidateRect(NULL);
				UpdateWindow();
				CImageList::DragShowNolock(1);
				KillTimer(1);
				return;
			}	
		}
		KillTimer(1);
	}
}*/



void CSuperGridCtrl::OnLButtonUp(UINT nFlags, CPoint point) 
{
	if(m_bIsDragging == TRUE)
    {
		KillTimer(1);
        CImageList::DragLeave(this);
        CImageList::EndDrag();
        ReleaseCapture();
        m_bIsDragging = FALSE;
		SetItemState(m_nDragTarget, 0, LVIS_DROPHILITED);
        if((m_nDragTarget != -1) && (m_nDragTarget != m_nDragItem) && (m_nDragItem!=-1))//no drop on me self
        {
		
			CTreeItem* pSource = GetTreeItem(m_nDragItem);
			CTreeItem* pTarget = GetTreeItem(m_nDragTarget);
			if(IsRoot(pSource))
				return;
			CTreeItem* pParent = GetParentItem(pSource);
			if(pParent==pTarget) //can't drag child to parent
				return;

			if(!IsChildOf(pSource, pTarget))//can't drag parent to child
			{
				CWaitCursor wait;
				SetRedraw(0);
				if(DoDragDrop(pTarget, pSource))
				{
					UINT uflag = LVIS_SELECTED | LVIS_FOCUSED;
					SetItemState(m_nDragTarget, uflag, uflag);
					m_nDragItem=-1;
					//delete source
					int nIndex = NodeToIndex(pSource);			
					DeleteItem(nIndex);
					HideChildren(pSource, TRUE, nIndex);
					Delete(pSource);
					InternaleUpdateTree();
					SetRedraw(1);
					InvalidateRect(NULL);
					UpdateWindow();
				}else
					SetRedraw(1);
			}
	    }
    }
    else
		CListCtrl::OnLButtonUp(nFlags, point);
}



//used with the drag/drop operation
void CSuperGridCtrl::CopyChildren(CTreeItem* pDest, CTreeItem* pSrc)
{
	if (ItemHasChildren(pSrc))
	{
		POSITION pos = pSrc->m_listChild.GetHeadPosition();
		while (pos != NULL)
		{
			CTreeItem* pItem = (CTreeItem *)pSrc->m_listChild.GetNext(pos);
			CItemInfo* lp = CopyData(GetData(pItem));
			CTreeItem* pNewItem = InsertItem(pDest, lp);
			CopyChildren(pNewItem, pItem);