绘图程序

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Visual C++

SettingDlg.cpp：源码内容
							// SettingDlg.cpp : implementation file
//
#include "stdafx.h"
#include "Graphic.h"
#include "SettingDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CSettingDlg dialog
CSettingDlg::CSettingDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSettingDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSettingDlg)
	m_nLineWidth = 0;
	m_nLineStyle = -1;
	//}}AFX_DATA_INIT
	m_clr=RGB(255,0,0);
	m_brush.CreateSolidBrush(RGB(0,0,255));
	m_font.CreatePointFont(200,"华文行楷");
}
void CSettingDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSettingDlg)
	DDX_Control(pDX, IDC_BTN_ST, m_btnST);
	DDX_Control(pDX, IDCANCEL, m_btnCancel);
	DDX_Control(pDX, IDOK, m_btnTest);
	DDX_Text(pDX, IDC_LINE_WIDTH, m_nLineWidth);
	DDX_Radio(pDX, IDC_RADIO1, m_nLineStyle);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CSettingDlg, CDialog)
	//{{AFX_MSG_MAP(CSettingDlg)
	ON_EN_CHANGE(IDC_LINE_WIDTH, OnChangeLineWidth)
	ON_BN_CLICKED(IDC_RADIO1, OnRadio1)
	ON_BN_CLICKED(IDC_RADIO2, OnRadio2)
	ON_BN_CLICKED(IDC_RADIO3, OnRadio3)
	ON_WM_PAINT()
	ON_WM_CTLCOLOR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CSettingDlg message handlers
void CSettingDlg::OnChangeLineWidth() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	Invalidate();
}
void CSettingDlg::OnRadio1() 
{
	// TODO: Add your control notification handler code here
	Invalidate();
}
void CSettingDlg::OnRadio2() 
{
	// TODO: Add your control notification handler code here
	Invalidate();
}
void CSettingDlg::OnRadio3() 
{
	// TODO: Add your control notification handler code here
	Invalidate();
}
void CSettingDlg::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
	UpdateData();
	CPen pen(m_nLineStyle,m_nLineWidth,m_clr);
	dc.SelectObject(&pen);
	CRect rect;
	GetDlgItem(IDC_SAMPLE)->GetWindowRect(&rect);
	ScreenToClient(&rect);
	dc.MoveTo(rect.left+20,rect.top+rect.Height()/2);
	dc.LineTo(rect.right-20,rect.top+rect.Height()/2);
	// Do not call CDialog::OnPaint() for painting messages
}
HBRUSH CSettingDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
	if(pWnd->GetDlgCtrlID()==IDC_LINE_STYLE)
	{
		pDC->SetTextColor(RGB(255,0,0));
		pDC->SetBkMode(TRANSPARENT);
		return m_brush;
	}
	if(pWnd->GetDlgCtrlID()==IDC_LINE_WIDTH)
	{
		pDC->SetTextColor(RGB(255,0,0));
		//pDC->SetBkMode(TRANSPARENT);
		pDC->SetBkColor(RGB(0,0,255));
		return m_brush;
	}
	if(pWnd->GetDlgCtrlID()==IDC_TEXT)
	{
		pDC->SelectObject(&m_font);
	}
	/*if(pWnd->GetDlgCtrlID()==IDOK)
	{
		pDC->SetTextColor(RGB(255,0,0));
		return m_brush;
	}*/
	// TODO: Return a different brush if the default is not desired
	return hbr;
	//return m_brush;
}
BOOL CSettingDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_btnST.SetActiveBgColor(RGB(0,0,255));
	m_btnST.SetActiveFgColor(RGB(255,0,0));
	m_btnST.SetInactiveBgColor(RGB(255,0,255));
	m_btnST.SetInactiveFgColor(RGB(255,255,0));
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

						