ex040205dlg.cpp

来自「深入浅出Visual C++入门进阶与应用实例 随书光盘 作者 何志丹」· C++ 代码 · 共 290 行

// Ex040205Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Ex040205.h"
#include "Ex040205Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CEx040205Dlg dialog

UINT CEx040205Dlg::s_IDFirst = IDC_CHECK1 ;
UINT CEx040205Dlg::s_IDLast  = IDC_CHECK9 ;

CEx040205Dlg::CEx040205Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CEx040205Dlg::IDD, pParent)
	
{
	//{{AFX_DATA_INIT(CEx040205Dlg)
	m_strLove = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CEx040205Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CEx040205Dlg)
	DDX_Text(pDX, IDC_LOVE, m_strLove);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CEx040205Dlg, CDialog)
	//{{AFX_MSG_MAP(CEx040205Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_PUT_IN, OnPutIn)
	//ON_COMMAND_RANGE(IDC_CHECK1,IDC_CHECK9,OnChecks)
	ON_COMMAND_RANGE(s_IDFirst,s_IDLast,OnChecks)
	ON_EN_CHANGE(IDC_LOVE, OnChangeLove)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEx040205Dlg message handlers

BOOL CEx040205Dlg::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);
		}
	}

	// 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
	
	//体育运动
	AddButton(IDC_CHECK1,"足球");
	AddButton(IDC_CHECK2,"篮球");
	AddButton(IDC_CHECK3,"乒乓球");
	AddButton(IDC_CHECK4,"羽毛球");
	AddButton(IDC_CHECK5,"网球");
	AddButton(IDC_CHECK6,"台球");
	
	//文学
	AddButton(IDC_CHECK7,"古诗");
	AddButton(IDC_CHECK8,"散文");
	AddButton(IDC_CHECK9,"小说");
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CEx040205Dlg::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 CEx040205Dlg::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 CEx040205Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CEx040205Dlg::OnPutIn() 
{
	UpdateData(true);
	AfxMessageBox("你的爱好是:\n" + m_strLove);
}

void CEx040205Dlg::OnChecks(UINT uID)
{
	if(uID < s_IDFirst || uID > s_IDLast )
	{
		ASSERT(false);
		return ;
	}

	CButton *pButton = (CButton *)GetDlgItem(uID) ;
	if(NULL == pButton )
		return ;
	
	CString strLove ;
	pButton->GetWindowText(strLove);
	if(pButton->GetCheck())
		AddLove(strLove);
	else
		DeleteLove(strLove);
}

int CEx040205Dlg::FindLove(CString strLove)
{
	CString strTemp = ("、" + m_strLove ) + "、" ;
	CString strFind = ("、" + strLove ) + "、" ;
	return strTemp.Find(strFind) ;
}

bool CEx040205Dlg::DeleteLove(CString strLove)
{
	const int nPos = FindLove(strLove) ;
	if(-1 == nPos)
		return false ;//不存在	
	
	m_strLove.Delete(nPos,strLove.GetLength());
	if( 0 == nPos )
		m_strLove.Delete(nPos,strlen("、"));
	else 
		m_strLove.Delete(nPos - strlen("、"),strlen("、"));
	
	UpdateData(false);
	return true ;
}

bool CEx040205Dlg::AddLove(CString strLove)
{
	if(-1 != FindLove(strLove))
		return false ;//已经存在
	
	if(!m_strLove.IsEmpty())
		m_strLove += "、" ;
	m_strLove += strLove ;
	
	UpdateData(false);
	return true ;
}

void CEx040205Dlg::AddButton(UINT uID, CString strCaption)
{
	if(uID < s_IDFirst || uID > s_IDLast )
	{
		ASSERT(false);
		return ;
	}

	CWnd * pWnd = GetDlgItem(uID) ;
	if(NULL == pWnd )
		return ;
	
	pWnd->SetWindowText(strCaption);
	
	CCheckButton button ;
	button.ID = uID ;
	button.m_strCaption = strCaption ;
	
	m_Buttons.Add(button);
}

void CEx040205Dlg::OnChangeLove() 
{
	UpdateData();
	
	for(int i = m_Buttons.GetSize()-1 ; i >= 0 ; i-- )
	{
		CButton *pButton = (CButton *)GetDlgItem(m_Buttons[i].ID) ;
		if(NULL == pButton )
			continue ;
		if( -1 != FindLove(m_Buttons[i].m_strCaption))
			pButton->SetCheck(true);
		else
			pButton->SetCheck(false);	
		
	} 	
}