// ConStreamDemoDlg.cpp : implementation file
//
// Mark Nelson, October 17, 1998
//
// The ConStream class creates a C++ ostream object that can be 
// used in Win32 C++ programs to write to a console window, often
// for debugging purposes. This code is demonstrated in the 
// ConStreamDemo MFC program, and is fully explained in the 
// accompanying Dr. Dobb's Journal article. For more details,
// see the article online at http://www.dogma.net/markn
//
//
// This file implements most of the interesting code in the
// ConStreamDemo program. Note first that the ConStream object
// is implemented as a member called m_Log in this program. m_Log
// is created when the dialog object is created, and destroyed
// when the dialog object is destroyed. No code is needed in the
// app to make this happen.
//
// The Console window is opened and closed in response to a 
// modification of the check box on the main dialog. It displays
// some data in the console window in response to a button press,
// and to a change in focus in the edit window. The four member
// functions that implement this are the last four fujnctions in 
// this file.
//
#include "stdafx.h"
#include "ConStreamDemo.h"
#include "ConStreamDemoDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CConStreamDemoDlg dialog

CConStreamDemoDlg::CConStreamDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CConStreamDemoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CConStreamDemoDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CConStreamDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CConStreamDemoDlg)
	DDX_Control(pDX, IDC_NUMBER, m_Number);
	DDX_Control(pDX, IDC_USE_DEBUG_WINDOW, m_UseDebugWindow);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CConStreamDemoDlg, CDialog)
	//{{AFX_MSG_MAP(CConStreamDemoDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_USE_DEBUG_WINDOW, OnUseDebugWindow)
	ON_EN_KILLFOCUS(IDC_NUMBER, OnKillfocusNumber)
	ON_EN_SETFOCUS(IDC_NUMBER, OnSetfocusNumber)
	ON_BN_CLICKED(IDC_DISPLAY, OnDisplay)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CConStreamDemoDlg message handlers

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

	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
}

// 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 CConStreamDemoDlg::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();
	}
}

HCURSOR CConStreamDemoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

//
// When the "Use Debug Window" checkbox is modified, we
// either open or close the console window.
//

void CConStreamDemoDlg::OnUseDebugWindow() 
{
    int i = m_UseDebugWindow.GetState() & 0x3;
	if ( i == 1 )
		m_Log.Open();
	else
		m_Log.Close();
}


//
// A debug message is written when the edit control
// either gains or loses the focus.
//
void CConStreamDemoDlg::OnKillfocusNumber() 
{
	m_Log << _T( "Lost focus in number field\n" );
}

void CConStreamDemoDlg::OnSetfocusNumber() 
{
	m_Log << _T( "Got focus in number field\n" );
}

//
// Pushing the "Display" button invokes this handler, 
// which expects to find a numberic value in the edit 
// field. The field and its validity are printed out
// in the debug console.
//
void CConStreamDemoDlg::OnDisplay() 
{
    BOOL success;
	int value = GetDlgItemInt( IDC_NUMBER, &success );
	m_Log << _T( "Success = " ) << success << endl;
	m_Log << _T( "Value = " ) << value << endl;
}