textidlg.cpp

一个很小的文本编辑器,Visual C++编写,很实用

// textiDlg.cpp : implementation file
//

#include "stdafx.h"
#include "texti.h"
#include "textiDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include <stdio.h>
#include <stdlib.h>
 

FILE *naji_input;
FILE *naji_output;
CString naji_buffer;


void najin(const char *namein)
{

	naji_input = fopen(namein, "rb");

	if (naji_input == NULL)
	{
	naji_buffer.Format("Error, cannot open input file: %s", namein);
	MessageBox(0, naji_buffer, "Error", 0);
	exit(2);
	}

}


void najout(const char *nameout)
{

	naji_output = fopen(nameout, "wb");

	if (naji_output == NULL)
	{
	naji_buffer.Format("Error, cannot open output file: %s", nameout);
	MessageBox(0, naji_buffer, "Error", 0);
	exit(4);
	}

}


/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CTextiDlg dialog

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

void CTextiDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTextiDlg)
	DDX_Control(pDX, IDC_COMMONDIALOG1, m_dialogbox);
	DDX_Text(pDX, IDC_EDIT1, m_buffer);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTextiDlg, CDialog)
	//{{AFX_MSG_MAP(CTextiDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
	ON_BN_CLICKED(IDC_BUTTON_CLEAR, OnButtonClear)
	ON_BN_CLICKED(IDC_BUTTON_OPEN, OnButtonOpen)
	ON_BN_CLICKED(IDC_BUTTON_SAVE_AS, OnButtonSaveAs)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTextiDlg message handlers

BOOL CTextiDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CTextiDlg::OnChangeEdit1() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);	
}

void CTextiDlg::OnButtonClear() 
{
	// TODO: Add your control notification handler code here
	m_buffer="";
	UpdateData(FALSE);
}

void CTextiDlg::OnButtonOpen() 
{
	// TODO: Add your control notification handler code here
int a;
CString filename;

	m_dialogbox.SetDialogTitle("Open");
	m_dialogbox.SetFilter("Text Files|*.txt|All Files|*.*");
	m_dialogbox.ShowOpen();

	if (m_dialogbox.GetFileName().IsEmpty() == FALSE) 
	filename = m_dialogbox.GetFileName(); 
	else return;

	OnButtonClear();
	najin(filename);

	while(1)
	{
	a = fgetc(naji_input);
    
	if (a == EOF) break;

	m_buffer += (char) a;
	}

	UpdateData(FALSE);

	fclose(naji_input);	
}

void CTextiDlg::OnButtonSaveAs() 
{
	// TODO: Add your control notification handler code here
CString filename;
	
	m_dialogbox.SetDialogTitle("Save As"); 
	m_dialogbox.SetFilter("Text Files|*.txt|All Files|*.*"); 
	m_dialogbox.ShowOpen(); 

	if (m_dialogbox.GetFileName().IsEmpty() == FALSE) 
	filename = m_dialogbox.GetFileName(); 
	else return;

	najout(filename);

	fputs(m_buffer, naji_output);
	fclose(naji_output);	
}