drawdlg.cpp

Visual C++应用教程-源代码 本书在复习C++基础知识后

// DrawDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Student.h"
#include "DrawDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDrawDlg dialog
#include "Graph.h"
CGraph theGraph;		// 全局变量


CDrawDlg::CDrawDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDrawDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDrawDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_strTitle = "成绩分布图";
	m_nMode = 0;
}


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


BEGIN_MESSAGE_MAP(CDrawDlg, CDialog)
	//{{AFX_MSG_MAP(CDrawDlg)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDrawDlg message handlers

BOOL CDrawDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	SetWindowText( m_strTitle );
	for (int i=0; i<m_uData.GetSize(); i++)
		theGraph.AddData( m_uData[i] );
	theGraph.SetDrawMode( m_nMode );
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CDrawDlg::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
	UpdateWindow();	
	CRect rc;
	GetClientRect( rc );
	theGraph.SetDrawRect( rc );
	theGraph.Draw(&dc, TRUE);
	
	// Do not call CDialog::OnPaint() for painting messages
}