demodlg.cpp

visual c++ 实例编程

// DemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Demo.h"
#include "DemoDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDemoDlg dialog

CDemoDlg::CDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDemoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDemoDlg)
	m_strItem = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDemoDlg)
	DDX_Control(pDX, IDC_SHWOMENU, m_btShowMenu_ctl);
	DDX_Control(pDX, IDC_LISTOFMENUITEM, m_ListOfItem_ctl);
	DDX_Control(pDX, IDC_INSERT, m_btInsert_ctl);
	DDX_Control(pDX, IDC_EDITITEM, m_item_ctl);
	DDX_Text(pDX, IDC_EDITITEM, m_strItem);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDemoDlg, CDialog)
	//{{AFX_MSG_MAP(CDemoDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SHWOMENU, OnButton1)
	ON_BN_CLICKED(IDC_INSERT, OnInsert)
	//}}AFX_MSG_MAP
	//手工添加消息映射
	ON_COMMAND_RANGE(IMENU_ITEM_ID,IMENU_ITEM_ID+100,OnMenuSelect)
	ON_UPDATE_COMMAND_UI_RANGE(IMENU_ITEM_ID,IMENU_ITEM_ID+100,OnupdateMenu)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDemoDlg message handlers

BOOL CDemoDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}
	
	//先自动添加几项
	m_ListOfItem_ctl.InsertString(0,"第一项");
	m_ListOfItem_ctl.InsertString(1,"第二项");
	//创建一个空菜单,必需的
	m_menu.CreatePopupMenu();
	//m_menu.ModifyMenu(0,MF_POPUP);

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDemoDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDemoDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDemoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDemoDlg::OnButton1() 
{
	//下面删除菜单项

	if(m_menu.m_hMenu)
	{
	int b=m_menu.GetMenuItemCount();
	for(int j=0;j<b;j++)
	{
		m_menu.RemoveMenu(0,MF_BYPOSITION);
	}
	
	m_menuItem.RemoveAll();
	int icount=m_ListOfItem_ctl.GetCount();
	//下面动态创建菜单
	for(int i=0;i<icount;i++)
	{
		CString strTemp;
		m_ListOfItem_ctl.GetText(i,strTemp);
		BOOL bRet=m_menu.AppendMenu(MF_STRING,IMENU_ITEM_ID+i,strTemp);	
	//	IDArray[i]=IMENU_ITEM_ID+i;//纪录id号，简单的情况可以不要
		if(bRet) m_menuItem.Add(strTemp);//纪录字符串
	}
	CRect rc;
    m_btShowMenu_ctl.GetWindowRect(rc);
    int x = (rc.left+rc.right)/2;
    int y = rc.bottom;
	//显示菜单
	m_menu.TrackPopupMenu(TPM_CENTERALIGN/*TPM_LEFTALIGN|TPM_LEFTBUTTON*/,x,y,this);
	}
}

void CDemoDlg::OnInsert() 
{
	UpdateData(TRUE);
	if(m_strItem.IsEmpty()) 
	{
		AfxMessageBox("请添入要添加的项");
		return ;
	}
	else
	{
		int icount=m_ListOfItem_ctl.GetCount();
		m_ListOfItem_ctl.InsertString(icount,m_strItem);
		m_item_ctl.SetWindowText("");
	}

}
//手工添加
void CDemoDlg::OnupdateMenu(CCmdUI *pCmdUI)
{
}
void CDemoDlg::OnMenuSelect(UINT nID)
{
	//再这里可以处理
	int i=nID-IMENU_ITEM_ID;
	CString str=m_menuItem.GetAt(i);
	CString strTemp;
	strTemp.Format("你点击了第%d项，ID为%d\n",i,nID);
	strTemp=strTemp+"内容是：";
	strTemp=strTemp+str;
	AfxMessageBox(strTemp);

}