// ZoomDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Prnt.h"
#include "ZoomDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CZoomDlg dialog


CZoomDlg::CZoomDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CZoomDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CZoomDlg)
	m_nZoom = 100;
	//}}AFX_DATA_INIT
}


void CZoomDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CZoomDlg)
	DDX_Control(pDX, IDC_SCROLLBAR, m_ScrollBar);
	DDX_Text(pDX, IDC_EDIT, m_nZoom);
	DDV_MinMaxInt(pDX, m_nZoom, 1, 800);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CZoomDlg, CDialog)
	//{{AFX_MSG_MAP(CZoomDlg)
	ON_WM_HSCROLL()
	ON_EN_CHANGE(IDC_EDIT, OnChangeEdit)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CZoomDlg message handlers

BOOL CZoomDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	m_ScrollBar.SetScrollRange(1,800,TRUE);
	m_ScrollBar.SetScrollPos(m_nZoom);
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CZoomDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	switch (nSBCode)
	{
	case SB_LEFT:
	  m_nZoom--;
	  break;
	case SB_RIGHT:
      m_nZoom++;
	  break;
	case SB_THUMBPOSITION:
	case SB_THUMBTRACK:
	  m_nZoom = (int) nPos;
	  break;
	case SB_LINELEFT:
	  m_nZoom = max (m_nZoom - 1, 1 );
	  break;
    case SB_LINERIGHT:
	  m_nZoom = min (m_nZoom + 1, 800 );
	  break;
	case SB_PAGELEFT:
	  m_nZoom = max (m_nZoom - 5, 1 );
	  break;
	case SB_PAGERIGHT:
	  m_nZoom = min (m_nZoom + 5, 800 );
	  break;
	}
    UpdateData(FALSE);
    m_ScrollBar.SetScrollPos(m_nZoom);
   
	CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}

void CZoomDlg::OnChangeEdit() 
{
	// TODO: Add your control notification handler code here

   UpdateData(TRUE);
   m_ScrollBar.SetScrollPos(m_nZoom);   
}