dlgquadraticequa.cpp

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

// DlgQuadraticEqua.cpp : implementation file
//

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

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

/////////////////////////////////////////////////////////////////////////////
// CDlgQuadraticEqua dialog


CDlgQuadraticEqua::CDlgQuadraticEqua(CWnd* pParent /*=NULL*/)
	: CDialog(CDlgQuadraticEqua::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDlgQuadraticEqua)
	m_vA = _T("");
	m_vB = _T("");
	m_vC = _T("");
	m_vX1 = _T("");
	m_vX2 = _T("");
	m_vKQ = _T("");
	//}}AFX_DATA_INIT
}


void CDlgQuadraticEqua::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDlgQuadraticEqua)
	DDX_Text(pDX, IDC_EDIT_A, m_vA);
	DDX_Text(pDX, IDC_EDIT_B, m_vB);
	DDX_Text(pDX, IDC_EDIT_C, m_vC);
	DDX_Text(pDX, IDC_EDIT_X1, m_vX1);
	DDX_Text(pDX, IDC_EDIT_X2, m_vX2);
	DDX_Text(pDX, IDC_STATIC_KQ, m_vKQ);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDlgQuadraticEqua, CDialog)
	//{{AFX_MSG_MAP(CDlgQuadraticEqua)
	ON_BN_CLICKED(IDC_BUTTON_RESULT, OnButtonResult)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDlgQuadraticEqua message handlers

void CDlgQuadraticEqua::OnButtonResult() 
{
	// TODO: Add your control notification handler code here
	double k1,k2;
	int flag = 5;
	char *f;
	
	UpdateData(TRUE);
	double a = strtod(m_vA,&f);
	double b = strtod(m_vB,&f);
	double c = strtod(m_vC,&f);
	
	PhuongTrinhBac2(a,b,c,k1,k2,flag);
	if(flag == 0)
	{
		MessageBox("You input wrong data !!!");
	}
	else if (flag == 2)
	{
		m_vKQ = "This equation has two different root !!!";
		m_vX1.Format("%f",k1);
		m_vX2.Format("%f",k2);
	}
	else if (flag == -1)
	{
		m_vKQ = "This equation has no root !!!";
		m_vX1 = "";
		m_vX2 = "";
	}
	else if (flag == 1)
	{
		m_vKQ = "This equation has two same root !!!";
		m_vX1.Format("%f",k1);
		m_vX2.Format("%f",k2);
	}
	
	UpdateData(FALSE);
}

BOOL CDlgQuadraticEqua::PreTranslateMessage(MSG* pMsg) 
{
	// TODO: Add your specialized code here and/or call the base class
	if (pMsg->message == WM_KEYDOWN)
    {
        if (pMsg->wParam == VK_RETURN){
            pMsg->wParam = NULL;
			OnButtonResult();
		}
    }

	return CDialog::PreTranslateMessage(pMsg);
}