ListView/ListBox

开发平台：
Visual C++

WZDTVIEW.CPP：源码内容
							// WzdTView.cpp : implementation of the CWzdTreeView class
//
#include "stdafx.h"
#include "Wzd.h"
#include "WzdDoc.h"
#include "WzdTView.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CWzdTreeView
IMPLEMENT_DYNCREATE(CWzdTreeView, CTreeView)
BEGIN_MESSAGE_MAP(CWzdTreeView, CTreeView)
	//{{AFX_MSG_MAP(CWzdTreeView)
	ON_NOTIFY_REFLECT(TVN_SELCHANGED, OnSelchanged)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CWzdTreeView construction/destruction
CWzdTreeView::CWzdTreeView()
{
	// set the CTreeCtrl attributes
	m_dwDefaultStyle = WS_CHILD | WS_VISIBLE | WS_BORDER | TVS_HASLINES 
						| TVS_SHOWSELALWAYS	| TVS_LINESATROOT | TVS_HASBUTTONS;
}
CWzdTreeView::~CWzdTreeView()
{
}
BOOL CWzdTreeView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs
	return CTreeView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CWzdTreeView drawing
void CWzdTreeView::OnDraw(CDC* pDC)
{
	CWzdDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}
/////////////////////////////////////////////////////////////////////////////
// CWzdTreeView printing
BOOL CWzdTreeView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}
void CWzdTreeView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}
void CWzdTreeView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CWzdTreeView diagnostics
#ifdef _DEBUG
void CWzdTreeView::AssertValid() const
{
	CView::AssertValid();
}
void CWzdTreeView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}
CWzdDoc* CWzdTreeView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CWzdDoc)));
	return (CWzdDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CWzdTreeView message handlers
void CWzdTreeView::OnInitialUpdate() 
{
	CTreeView::OnInitialUpdate();
	// set icons	
	m_ImageList.Create(IDB_SMALL_BITMAP, 16, 1, RGB(0,0,0));
	GetTreeCtrl().SetImageList(&m_ImageList, TVSIL_NORMAL);
	
}
void CWzdTreeView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint) 
{
	if (lHint&LIST_VIEW_ONLY)
	{
		return;
	}
	HTREEITEM hitem;
	CWzdInfo *pInfo;
	switch (lHint)
	{
		case TREE_VIEW_SELECT:
			pInfo=GetDocument()->GetSelection();	
			if ((hitem = FindTreeItem(GetTreeCtrl().GetChildItem(GetTreeCtrl().GetRootItem()), pInfo->m_nObjectID))!=NULL)
			{
				GetTreeCtrl().SelectItem(hitem);
			}
			break;
		case TREE_VIEW_UP_LEVEL:
			hitem=GetTreeCtrl().GetSelectedItem();
			hitem=GetTreeCtrl().GetParentItem(hitem);
			GetTreeCtrl().SelectItem(hitem);
			break;
		default:
			GetTreeCtrl().DeleteAllItems();
			AddBranch(TVI_ROOT, GetDocument()->GetWzdList());
			break;
	}
}
// recurse until all CWzdInfo items are in a leaf
void CWzdTreeView::AddBranch(HTREEITEM hTreeItem, CList<CWzdInfo*,CWzdInfo*> *pList)
{
	for (POSITION pos = pList->GetHeadPosition(); pos;)
	{
		CWzdInfo *pInfo = pList->GetNext(pos);
		if (pInfo->m_nCategory!=CWzdInfo::FILE)
		{
			HTREEITEM hTreeItemx=AddLeaf(hTreeItem, pInfo);
			if (pList->GetCount())
			{
				AddBranch(hTreeItemx, &pInfo->m_list);
			}
		}
	}
}
// add leaf to tree
HTREEITEM CWzdTreeView::AddLeaf(HTREEITEM hTreeItem, CWzdInfo *pInfo)
{
	TV_INSERTSTRUCT		tvstruct;
	tvstruct.hParent = hTreeItem;
	tvstruct.hInsertAfter = TVI_LAST;
	tvstruct.item.iImage = tvstruct.item.iSelectedImage = pInfo->m_nObjectID;
	tvstruct.item.pszText = (char *)LPCTSTR(pInfo->m_sName);
	tvstruct.item.mask = TVIF_IMAGE |TVIF_SELECTEDIMAGE | TVIF_PARAM  | TVIF_TEXT;
	tvstruct.item.lParam=(DWORD)pInfo;
	return GetTreeCtrl().InsertItem(&tvstruct);
}
// recurse until item found or items expended
HTREEITEM CWzdTreeView::FindTreeItem(HTREEITEM hTreeItem, long nObjectID)
{
	while (hTreeItem != NULL)
	{
		CWzdInfo *pInfo=(CWzdInfo *)GetTreeCtrl().GetItemData(hTreeItem);
		if (pInfo->m_nObjectID==nObjectID)
		{
			return hTreeItem;
		}
		else if (GetTreeCtrl().ItemHasChildren(hTreeItem))
		{
			HTREEITEM hTreeItemx = FindTreeItem(GetTreeCtrl().GetChildItem(hTreeItem), nObjectID);
			if (hTreeItemx)
			{
				return hTreeItemx;
			}
		}
		else
		{
			hTreeItem = GetTreeCtrl().GetNextItem(hTreeItem, TVGN_NEXT);
		}
	} 
	return NULL;
}
// new selection, change listview!
void CWzdTreeView::OnSelchanged(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
	GetDocument()->SaveSelection((CWzdInfo *)pNMTreeView->itemNew.lParam,LIST_VIEW_ONLY);
	
	*pResult = 0;
}

						