playdrawview.cpp

简单的图形变换系统

// PlayDrawView.cpp : implementation of the CPlayDrawView class
//

#include "stdafx.h"
#include "PlayDraw.h"

#include "PlayDrawDoc.h"
#include "PlayDrawView.h"
#include "ShezhiDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CPlayDrawView

IMPLEMENT_DYNCREATE(CPlayDrawView, CView)

BEGIN_MESSAGE_MAP(CPlayDrawView, CView)
	//{{AFX_MSG_MAP(CPlayDrawView)
	ON_COMMAND(ID_APP_SWITCH, OnAppSwitch)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPlayDrawView construction/destruction

CPlayDrawView::CPlayDrawView()
{
	// TODO: add construction code here
	m_pDlg=NULL;
}

CPlayDrawView::~CPlayDrawView()
{
}

BOOL CPlayDrawView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CPlayDrawView drawing

void CPlayDrawView::OnDraw(CDC* pDC)
{
	CPlayDrawDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	CRect rect;
	GetClientRect(rect);
	ScreenToClient(rect);
	SetViewportOrgEx((HDC)pDC,512,360,NULL);

	pDC->MoveTo(0,360);
	pDC->LineTo(1024,360);
	pDC->MoveTo(512,0);
	pDC->LineTo(512,1024);

}

/////////////////////////////////////////////////////////////////////////////
// CPlayDrawView diagnostics

#ifdef _DEBUG
void CPlayDrawView::AssertValid() const
{
	CView::AssertValid();
}

void CPlayDrawView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CPlayDrawDoc* CPlayDrawView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CPlayDrawDoc)));
	return (CPlayDrawDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CPlayDrawView message handlers

void CPlayDrawView::OnAppSwitch() 
{
	// TODO: Add your command handler code here
	if (m_pDlg)		
		m_pDlg->SetActiveWindow();//激活对话框	
	else	
	{
		// 创建对话框		
		m_pDlg=new CShezhiDlg(this); //创建对话框对象		
		m_pDlg->m_parent=this; //对话框对象获取主窗口视图指针	
		m_pDlg->Create (IDD_SWITCH,this); //创建对话框窗口　　　　
		m_pDlg->ShowWindow(SW_SHOW);//显示对话框	
	}
}