// MFC_Chap4Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "MFC_Chap4.h"
#include "MFC_Chap4Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CMFC_Chap4Dlg dialog

CMFC_Chap4Dlg::CMFC_Chap4Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMFC_Chap4Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMFC_Chap4Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMFC_Chap4Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMFC_Chap4Dlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMFC_Chap4Dlg, CDialog)
	//{{AFX_MSG_MAP(CMFC_Chap4Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ONTOP, OnOntop)
	ON_WM_SIZE()
	ON_BN_CLICKED(IDC_CLOSE, OnClose)
	ON_BN_CLICKED(IDC_HIDEBUTTON, OnHidebutton)
	ON_BN_CLICKED(IDC_ENABLECLOSE, OnEnableclose)
	ON_EN_KILLFOCUS(IDC_REQUIRED, OnKillfocusRequired)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMFC_Chap4Dlg message handlers

HFONT SimpleCreateFont( int Height, BOOL Bold, BOOL Italic, BOOL Underline, BOOL StrikeOut, DWORD Family, char* FaceName )
{
	HFONT Ret;
	int Weight;

	Weight = Bold ? FW_BOLD : FW_NORMAL;

	Ret = CreateFont( Height, 0, 0, 0, Weight,
		Italic, Underline, StrikeOut, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
		CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | Family, FaceName );

	return( Ret );
}

BOOL CMFC_Chap4Dlg::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

	// Make sure that our OnSize is called for initial sizing
	CRect Rect;
	GetClientRect( &Rect );
	OnSize( SIZE_RESTORED, Rect.Width(), Rect.Height() );

	// Make sure that the Enable checkbox starts as checked
	CheckDlgButton( IDC_ENABLECLOSE, TRUE );

	// Set font for our 'Enable' checkbox
	m_Font.Attach( SimpleCreateFont( 15, FALSE, TRUE, FALSE, FALSE, 0, "Times New Roman" ) );
	GetDlgItem( IDC_ENABLECLOSE )->SetFont( &m_Font );

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

void CMFC_Chap4Dlg::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 CMFC_Chap4Dlg::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 CMFC_Chap4Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMFC_Chap4Dlg::OnOntop() 
{
	// Get pointer to CWnd for the Check Box control
	CButton* pButton = (CButton*)GetDlgItem( IDC_ONTOP );

	// Determine if it's checked or not, then set top-most status of this window.
	if( pButton->GetCheck() )
		SetWindowPos( &wndTopMost, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
	else
		SetWindowPos( &wndNoTopMost, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
	
}

void CMFC_Chap4Dlg::OnSize(UINT nType, int cx, int cy) 
{
//	We don't call the default OnSize handler here.
//	CDialog::OnSize(nType, cx, cy);
	
	CWnd* pChild;
	
	// Get CWnd pointer for the Status static control
	pChild = GetDlgItem( IDC_STATUS );
	// If available, then move and size the window accordingly
	if( pChild->GetSafeHwnd() )
		pChild->MoveWindow( 0, cy - 18, cx, 18, TRUE );

	// Get CWnd pointer for the Close button control
	pChild = GetDlgItem( IDC_CLOSE );
	// If available, then move (don't size) the window accordingly
	if( pChild->GetSafeHwnd() )
	{
		CRect ChildRect;
		pChild->GetClientRect( &ChildRect );
		pChild->SetWindowPos( 0, cx - ChildRect.right, 
					cy - 20 - ChildRect.bottom, 0, 0, 
					SWP_NOZORDER|SWP_NOSIZE );
	}
}

void CMFC_Chap4Dlg::OnClose() 
{
	// Close the dialog, and indicate how it was closed
	EndDialog( IDC_CLOSE );	
}

void CMFC_Chap4Dlg::OnHidebutton() 
{
	// Get pointer to CWnd for the Check Box control
	CButton* pButton = (CButton*)GetDlgItem( IDC_HIDEBUTTON );
	CWnd* pClose = GetDlgItem( IDC_CLOSE );

	// Determine if it's checked or not, then hide or show the Close button
	if( pButton->GetCheck() )
		pClose->ShowWindow( SW_HIDE );
	else
		pClose->ShowWindow(  SW_SHOW );
	
}

void CMFC_Chap4Dlg::OnEnableclose() 
{
	// Get Pointers to window objects
	CButton* pButton = (CButton*)GetDlgItem( IDC_ENABLECLOSE );
	CWnd* pClose = GetDlgItem( IDC_CLOSE );

	// Determine if it's checked or not, then enable or disable the Close button
	if( pButton->GetCheck() )
		pClose->EnableWindow( TRUE );
	else
		pClose->EnableWindow( FALSE );
		
}

void CMFC_Chap4Dlg::OnKillfocusRequired() 
{
	// Get pointer to the Edit box control class
	CEdit* pEdit = (CEdit*)GetDlgItem( IDC_REQUIRED );
	// Determine if the edit box is empty
	if( pEdit->GetWindowTextLength() == 0 )
	{
		// If so, display error message
		MessageBox( "Edit box can not be blank" );
		// And set focus back to the edit control
		pEdit->SetFocus();
	}
}
