远程控制编程

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C/C++

CustomDlg.cpp：源码内容

							// CustomDlg.cpp : implementation file
//
#include "stdafx.h"
#include "drawobj.h"
#include "projdoc.h"
#include "projview.h"
#include "CustomDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CCustomDlg dialog
CCustomDlg::CCustomDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCustomDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCustomDlg)
	m_index = -1;
	//}}AFX_DATA_INIT
	m_pView = NULL;
	m_pList = NULL;
}
void CCustomDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCustomDlg)
	DDX_Control(pDX, IDC_COMBO1, m_combox);
	DDX_CBIndex(pDX, IDC_COMBO1, m_index);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CCustomDlg, CDialog)
	//{{AFX_MSG_MAP(CCustomDlg)
	ON_CBN_SELCHANGE(IDC_COMBO1, OnSelchangeCombo1)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CCustomDlg message handlers
BOOL CCustomDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	POSITION pos = m_list.GetHeadPosition();
	while(pos!=NULL)
	{
		m_combox.AddString(m_list.GetNext(pos));
	}
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}
void CCustomDlg::OnSelchangeCombo1() 
{
	UpdateData(TRUE);
	CClientDC dc(this);
	
	dc.SetMapMode(MM_ANISOTROPIC);
	dc.SetViewportExt(dc.GetDeviceCaps(LOGPIXELSX),
	dc.GetDeviceCaps(LOGPIXELSY));
	dc.SetWindowExt(100, -100);
	dc.OffsetViewportOrg(0,0);
	
	CRect rect(CPoint(10,-20),CSize(100,-100));
	dc.LPtoDP(rect);
	InvalidateRect(rect,TRUE);	
}
void CCustomDlg::PrepareView(CProjView* pView)
{
	ASSERT_VALID(pView);
	
	m_pView = pView;
	if(!(((pView->GetDocument())->m_customList).IsEmpty()))
       m_pList = &((pView->GetDocument())->m_customList);
}
void CCustomDlg::OnPaint() 
{
	int nWidth,nHeight;
	float xRate,yRate;
	CPaintDC dc(this); // device context for painting
	
	dc.SetMapMode(MM_ANISOTROPIC);
	dc.SetViewportExt(dc.GetDeviceCaps(LOGPIXELSX),
	dc.GetDeviceCaps(LOGPIXELSY));
	dc.SetWindowExt(100, -100);
	dc.OffsetViewportOrg(0,0);
	if(m_pList != NULL)
	{
		if(m_index >= 0)
		{
			POSITION pos = m_pList->FindIndex(m_index);
			CDrawObj* pObj = (m_pList->GetAt(pos));
			CRect rect;
			CRect originalRect = pObj->m_position;
			pObj->CustomRect(rect);
			rect.NormalizeRect();
		
			xRate = rect.Width()*1.0/rect.Height();
			yRate = rect.Height()*1.0/rect.Width();
			
			nWidth = (abs(rect.Width())>abs(rect.Height()))?100:abs(100*xRate);
			nHeight = (abs(rect.Width())<abs(rect.Height()))?100:abs(100*yRate);
			
			pObj->m_position = CRect(CPoint(10,-20),CSize(nWidth,-nHeight));
			pObj->OriginalRect(pObj->m_position,originalRect);
			pObj->MoveTo(pObj->m_position,m_pView);
			pObj->Draw(&dc);
		}
	}
}

						