day7dlg.cpp

学习VC的一些例子

// Day7Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Day7.h"
#include "Day7Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CDay7Dlg dialog

CDay7Dlg::CDay7Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDay7Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDay7Dlg)
	m_strDisplayText = _T("");
	m_strFontName = _T("");
	m_strSampText = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDay7Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDay7Dlg)
	DDX_Control(pDX, IDC_LFONTS, m_ctlFontList);
	DDX_Control(pDX, IDC_DISPLAYTEXT, m_ctlDisplayText);
	DDX_Text(pDX, IDC_DISPLAYTEXT, m_strDisplayText);
	DDX_LBString(pDX, IDC_LFONTS, m_strFontName);
	DDX_Text(pDX, IDC_ESAMPTEXT, m_strSampText);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDay7Dlg, CDialog)
	//{{AFX_MSG_MAP(CDay7Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_EN_CHANGE(IDC_ESAMPTEXT, OnChangeEsamptext)
	ON_LBN_SELCHANGE(IDC_LFONTS, OnSelchangeLfonts)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDay7Dlg message handlers

BOOL CDay7Dlg::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
	
	// TODO: Add extra initialization here
	FillFontList1();

	m_strSampText = "Testing";
	m_strDisplayText = m_strSampText;
	UpdateData(FALSE);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDay7Dlg::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 CDay7Dlg::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 CDay7Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDay7Dlg::OnOK() 
{
	CDialog::OnOK();
}

int CALLBACK EnumFontFamProc(LPENUMLOGFONT lpelf,
	LPNEWTEXTMETRIC lpntm, DWORD nFontType, long lParam)
{
	CDay7Dlg *pWnd = (CDay7Dlg *) lParam;

	pWnd->m_ctlFontList.AddString(lpelf->elfLogFont.lfFaceName);

	return 1;
}


void CDay7Dlg::FillFontList()
{
	LOGFONT lf;

	lf.lfCharSet = DEFAULT_CHARSET;
	strcpy(lf.lfFaceName, "");

	m_ctlFontList.ResetContent();

	CClientDC dc(this);

	::EnumFontFamiliesEx((HDC) dc, &lf, (FONTENUMPROC) EnumFontFamProc,
		(LPARAM) this, 0);
}

void CDay7Dlg::FillFontList1()
{
	int iCount;
	int iCurCount;
	CString strCurFont;
	CString strPrevFont;
	LOGFONT lf;

	lf.lfCharSet = DEFAULT_CHARSET;
	strcpy(lf.lfFaceName, "");

	m_ctlFontList.ResetContent();

	CClientDC dc(this);

	::EnumFontFamiliesEx((HDC) dc, &lf, (FONTENUMPROC) EnumFontFamProc,
		(LPARAM) this, 0);

	iCount = m_ctlFontList.GetCount();
	for (iCurCount = iCount; iCurCount > 0; iCurCount--)
	{
		m_ctlFontList.GetText((iCurCount-1), strCurFont);
		if (strCurFont == strPrevFont)
			m_ctlFontList.DeleteString((iCurCount-1));
		strPrevFont = strCurFont;
	}
}

void CDay7Dlg::OnChangeEsamptext() 
{
	UpdateData(TRUE);
	m_strDisplayText = m_strSampText;
	UpdateData(FALSE);
}

void CDay7Dlg::SetMyFont()
{
	CRect rRect;
	int iHeight;

	if (m_strFontName != "")
	{
		m_ctlDisplayText.GetWindowRect(&rRect);
		iHeight = rRect.top - rRect.bottom;
		if (iHeight < 0) iHeight = 0 - iHeight;
		
		m_fSampFont.Detach();
		m_fSampFont.CreateFont((iHeight-5), 0,0,0, FW_NORMAL,
			0,0,0, DEFAULT_CHARSET, OUT_CHARACTER_PRECIS,
			CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH |
			FF_DONTCARE, m_strFontName);

		m_ctlDisplayText.SetFont(&m_fSampFont);
	}
}

void CDay7Dlg::OnSelchangeLfonts() 
{
	UpdateData(TRUE);
	
	SetMyFont();
}