smallcad203view.cpp

一个简单的画图程序 可以画点线面等

// SmallCAD203View.cpp : implementation of the CSmallCAD203View class
//

#include "stdafx.h"
#include "SmallCAD203.h"

#include "SmallCAD203Doc.h"
#include "SmallCAD203View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSmallCAD203View

IMPLEMENT_DYNCREATE(CSmallCAD203View, CView)

BEGIN_MESSAGE_MAP(CSmallCAD203View, CView)
	//{{AFX_MSG_MAP(CSmallCAD203View)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_COMMAND(ID_CLEAR, OnClear)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSmallCAD203View construction/destruction

CSmallCAD203View::CSmallCAD203View()
{
	// TODO: add construction code here

}

CSmallCAD203View::~CSmallCAD203View()
{
}

BOOL CSmallCAD203View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CSmallCAD203View drawing

void CSmallCAD203View::OnDraw(CDC* pDC)
{
	CSmallCAD203Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
   //CSmallCAD203Doc *pDoc=GetDoCument();
	ASSERT_VALID(pDoc);
CGraph* p=pDoc->my_list.GetHead();
	//for(int i=0;i<pDoc->GetGraphNumber();i++)
	//	pDoc->GetGraph(i)->Draw(pDC);
while(p)
{p->Draw(pDC);
p=p->next;
}
}

/////////////////////////////////////////////////////////////////////////////
// CSmallCAD203View printing

BOOL CSmallCAD203View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CSmallCAD203View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CSmallCAD203View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CSmallCAD203View diagnostics

#ifdef _DEBUG
void CSmallCAD203View::AssertValid() const
{
	CView::AssertValid();
}

void CSmallCAD203View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CSmallCAD203Doc* CSmallCAD203View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSmallCAD203Doc)));
	return (CSmallCAD203Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CSmallCAD203View message handlers

void CSmallCAD203View::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(GetDocument()->GetCurrentFunction()!=NULL)
	GetDocument()->GetCurrentFunction()->OnLButtonDown(nFlags,point);
	CView::OnLButtonDown(nFlags, point);
}

void CSmallCAD203View::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(GetDocument()->GetCurrentFunction()!=NULL)
	GetDocument()->GetCurrentFunction()->OnLButtonUp(nFlags,point);
	CView::OnLButtonUp(nFlags, point);
}

void CSmallCAD203View::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
		CStatusBar *pStatus=(CStatusBar *)AfxGetApp()->m_pMainWnd->GetDescendantWindow(ID_VIEW_STATUS_BAR);
	if(pStatus)
	{
		char tbuf[20];
		sprintf(tbuf,"坐标(%d,%d)",point.x,point.y);
		pStatus->SetPaneText(1,tbuf);
	}
	if(GetDocument()->GetCurrentFunction()!=NULL)
	GetDocument()->GetCurrentFunction()->OnMouseMove(nFlags,point);
	CView::OnMouseMove(nFlags, point);
}

void CSmallCAD203View::OnClear() 
{
	// TODO: Add your command handler code here
	CSmallCAD203Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	pDoc->my_list.DeleteGraph();
Invalidate();	
	
}