ex_listview.cpp

Visual C++应用教程-源代码 本书在复习C++基础知识后

// Ex_ListView.cpp : implementation of the CEx_ListView class
//

#include "stdafx.h"
#include "Ex_List.h"

#include "Ex_ListDoc.h"
#include "Ex_ListView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CEx_ListView

IMPLEMENT_DYNCREATE(CEx_ListView, CListView)

BEGIN_MESSAGE_MAP(CEx_ListView, CListView)
	//{{AFX_MSG_MAP(CEx_ListView)
	ON_COMMAND(ID_VIEW_CHANGE, OnViewChange)
	ON_NOTIFY_REFLECT(NM_DBLCLK, OnDblclk)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CListView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CListView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CListView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEx_ListView construction/destruction

CEx_ListView::CEx_ListView()
{
	// TODO: add construction code here

}

CEx_ListView::~CEx_ListView()
{
}

BOOL CEx_ListView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CListView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CEx_ListView drawing

void CEx_ListView::OnDraw(CDC* pDC)
{
	CEx_ListDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

void CEx_ListView::OnInitialUpdate()
{
	CListView::OnInitialUpdate();

	// 创建图像列表
	m_ImageList.Create(32,32,ILC_COLOR8|ILC_MASK,1,1);
	m_ImageListSmall.Create(16,16,ILC_COLOR8|ILC_MASK,1,1);

	CListCtrl& m_ListCtrl = GetListCtrl();
	m_ListCtrl.SetImageList(&m_ImageList,LVSIL_NORMAL);
	m_ListCtrl.SetImageList(&m_ImageListSmall,LVSIL_SMALL);
	LV_COLUMN listCol;
	char* arCols[4]={"文件名", "大小", "类型", "修改日期"};
	listCol.mask = LVCF_FMT|LVCF_WIDTH|LVCF_TEXT|LVCF_SUBITEM;
	// 添加列表头
	for (int nCol=0; nCol<4; nCol++)	{
		listCol.iSubItem = nCol;
		listCol.pszText = arCols[nCol];
		if (nCol == 1) 	
			listCol.fmt = LVCFMT_RIGHT;
		else
			listCol.fmt = LVCFMT_LEFT;
		m_ListCtrl.InsertColumn(nCol,&listCol);
	}

	// 查找当前目录下的文件
	CFileFind finder;
	BOOL bWorking = finder.FindFile("*.*");
	int nItem = 0, nIndex, nImage;
	CTime m_time;
	CString str, strTypeName;
	while (bWorking) {
		bWorking = finder.FindNextFile();
		if (finder.IsArchived()){
			str = finder.GetFilePath();
			SHFILEINFO fi;
			// 获取文件关联的图标和文件类型名
			SHGetFileInfo(str,0,&fi,sizeof(SHFILEINFO),SHGFI_ICON|SHGFI_LARGEICON|SHGFI_TYPENAME);
			strTypeName = fi.szTypeName;
			nImage = -1;
			for (int i=0; i<m_strArray.GetSize(); i++) 
			{
				if (m_strArray[i] == strTypeName) 
				{
					nImage = i;		break;
				}
			}
			if (nImage<0) 
			{	// 添加图标
				nImage = m_ImageList.Add(fi.hIcon);
				SHGetFileInfo(str,0,&fi,sizeof(SHFILEINFO),SHGFI_ICON|SHGFI_SMALLICON );
				m_ImageListSmall.Add(fi.hIcon);
				m_strArray.Add(strTypeName);
			}
			
			// 添加列表项
			nIndex = m_ListCtrl.InsertItem(nItem,finder.GetFileName(),nImage);
			DWORD dwSize = finder.GetLength();
			if (dwSize> 1024)
				str.Format("%dK", dwSize/1024);
			else
				str.Format("%d", dwSize);
			m_ListCtrl.SetItemText(nIndex, 1, str);
			m_ListCtrl.SetItemText(nIndex, 2, strTypeName);
			finder.GetLastWriteTime(m_time) ;
			m_ListCtrl.SetItemText(nIndex, 3, m_time.Format("%Y-%m-%d"));
			nItem++;
		}
	}
	SetCtrlStyle(m_ListCtrl.GetSafeHwnd(), LVS_REPORT);	// 设置为报表方式
	m_ListCtrl.SetExtendedStyle(LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES);
	// 设置扩展风格，使得列表项一行全项选择且显示出网格线

	m_ListCtrl.SetColumnWidth(0, LVSCW_AUTOSIZE);	// 设置列宽
	m_ListCtrl.SetColumnWidth(1, 100);	
	m_ListCtrl.SetColumnWidth(2, LVSCW_AUTOSIZE);	
	m_ListCtrl.SetColumnWidth(3, 200);	
}

/////////////////////////////////////////////////////////////////////////////
// CEx_ListView printing

BOOL CEx_ListView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CEx_ListView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CEx_ListView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CEx_ListView diagnostics

#ifdef _DEBUG
void CEx_ListView::AssertValid() const
{
	CListView::AssertValid();
}

void CEx_ListView::Dump(CDumpContext& dc) const
{
	CListView::Dump(dc);
}

CEx_ListDoc* CEx_ListView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEx_ListDoc)));
	return (CEx_ListDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CEx_ListView message handlers

void CEx_ListView::OnViewChange() 
{
	// TODO: Add your command handler code here
	static int nStyleIndex = 1;
	DWORD style[4] = {LVS_REPORT, LVS_ICON, LVS_SMALLICON, LVS_LIST };
	
	CListCtrl& m_ListCtrl = GetListCtrl();
	SetCtrlStyle(m_ListCtrl.GetSafeHwnd(), style[nStyleIndex]);
	
	nStyleIndex++;
	if (nStyleIndex>3) nStyleIndex = 0;

}

void CEx_ListView::OnDblclk(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// TODO: Add your control notification handler code here
	LPNMITEMACTIVATE lpItem = (LPNMITEMACTIVATE)pNMHDR;
	int nIndex = lpItem->iItem;
	if (nIndex >= 0) {
		CListCtrl& m_ListCtrl = GetListCtrl();
		CString str = m_ListCtrl.GetItemText(nIndex, 0);
		MessageBox(str);
	}
	
	*pResult = 0;
}