dlgequation.cpp

Calculator program written by DLLs with the math algorithms such as automata and can draw some simpl

// DlgEquation.cpp : implementation file
//

#include "stdafx.h"
#include "CalculatorGUI.h"
#include "DlgEquation.h"
#include "Lib/PhuongTrinh.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDlgEquation dialog


CDlgEquation::CDlgEquation(CWnd* pParent /*=NULL*/)
	: CDialog(CDlgEquation::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDlgEquation)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CDlgEquation::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDlgEquation)
	DDX_Control(pDX, IDC_TAB1, m_tabCtrl);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDlgEquation, CDialog)
	//{{AFX_MSG_MAP(CDlgEquation)
	ON_NOTIFY(TCN_SELCHANGE, IDC_TAB1, OnSelchangeTab1)
	ON_WM_ERASEBKGND()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDlgEquation message handlers

void CDlgEquation::OnSelchangeTab1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// TODO: Add your control notification handler code here
	index = m_tabCtrl.GetCurSel();

	switch (index)
	{
		case 0:
			p1.ShowWindow(SW_SHOW);
			p2.ShowWindow(SW_HIDE);
			break;
		case 1:
			p1.ShowWindow(SW_HIDE);
			p2.ShowWindow(SW_SHOW);
			break;
	}

	*pResult = 0;
}

BOOL CDlgEquation::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_tabCtrl.InsertItem(0,"Linear Equation");
	m_tabCtrl.InsertItem(1,"Quadratic Equation");

	index = 0;
	p1.Create(IDD_DIALOG_LINEAREQUA,this);
	p1.ShowWindow(SW_SHOW);

	p2.Create(IDD_DIALOG_QUADRATICEQUA,this);
	p2.ShowWindow(SW_HIDE);

	SetBitmap(IDB_BITMAP3);

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

// Tao bitmap background cho dialog

BOOL CDlgEquation::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	CDialog::OnEraseBkgnd(pDC);
	if(!m_bitmap.m_hObject)
		return true;
	
	CRect rect;
	GetClientRect(&rect);
	CDC dc;
	dc.CreateCompatibleDC(pDC);
	CBitmap* pOldBitmap = dc.SelectObject(&m_bitmap);
	int bmw, bmh ;
	BITMAP bmap;
	m_bitmap.GetBitmap(&bmap);
	bmw = bmap.bmWidth;
	bmh = bmap.bmHeight;
	int xo=0, yo=0;
	
	if(bmw < rect.Width())
		xo = (rect.Width() - bmw)/2;
	else 
		xo=0;
	if(bmh < rect.Height())
		yo = (rect.Height()-bmh)/2;
	else
		yo=0;
	pDC->BitBlt (xo, yo, rect.Width(), rect.Height(), &dc, 0, 0, SRCCOPY);
	
	dc.SelectObject(pOldBitmap);
	
	return true;
}

int CDlgEquation::SetBitmap(UINT nIDResource)
{
	if(m_bitmap.LoadBitmap(nIDResource))
		return 0;
	else
		return 1;//error
}