画图view.cpp

画简单的图形用VC++开发的利用鼠标响应程序的实行

// 画图View.cpp : implementation of the CMyView class
//

#include "stdafx.h"
#include "画图.h"

#include "画图Doc.h"
#include "画图View.h"
#include "StudentInfo1.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CView)

BEGIN_MESSAGE_MAP(CMyView, CView)
	//{{AFX_MSG_MAP(CMyView)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_COMMAND(ID_WIDTH2, OnWidth2)
	ON_COMMAND(ID_WIDTH4, OnWidth4)
	ON_COMMAND(ID_GREEN, OnGreen)
	ON_COMMAND(ID_LINE, OnLine)
	ON_COMMAND(ID_RECT, OnRect)
	ON_COMMAND(ID_RED, OnRed)
	ON_WM_PAINT()
	ON_COMMAND(ID_STUDENT, OnStudent)
	ON_UPDATE_COMMAND_UI(ID_SJ, OnUpdateSj)
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction

CMyView::CMyView()
{
	// TODO: add construction code here
	tuxing=1;
}

CMyView::~CMyView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView drawing

void CMyView::OnDraw(CDC* pDC)
{
	CMyDoc* pDoc = GetDocument();

	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CMyView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

void CMyView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CMyDoc *pDoc=GetDocument();
	pDoc->l.SetStart(point);
	pDoc->l.SetEnd(point);
	pDoc->r.SetStart(point);
	pDoc->r.SetEnd(point);

	e=s=point;
	
	pDoc->UpdateAllViews(this,0,NULL);
	CView::OnLButtonDown(nFlags, point);
}

void CMyView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CMyDoc *pDoc=GetDocument();
	pDoc->l.SetEnd(point);

	CClientDC dc(this);
    
	w=pDoc->l.GetWidth();
    c=pDoc->l.GetColor();
	CPen pen(PS_SOLID,w,c),*oldPen;
	oldPen=dc.SelectObject(&pen);

	if(tuxing==1)
	{
		dc.MoveTo(s);
		pDoc->l.SetEnd(point);
		dc.LineTo(pDoc->l.GetEnd());
		pDoc->UpdateAllViews(this,0,NULL);

	}
	else if(tuxing==2)
	{
		dc.Rectangle(pDoc->r.GetStart().x,pDoc->r.GetStart().y,pDoc->r.GetEnd().x,pDoc->r.GetEnd().y);
	}
	

	CView::OnLButtonUp(nFlags, point);
}

void CMyView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CMyDoc *pDoc=GetDocument();
	CClientDC dc(this);

	CPen pen(PS_SOLID,w,RGB(255,0,0)),*oldPen;
	oldPen=dc.SelectObject(&pen);
	dc.SetROP2(R2_NOT);
	if(nFlags==MK_LBUTTON)
	{
		if(tuxing==1)
		{
		dc.MoveTo(s);
		dc.LineTo(pDoc->l.GetEnd());

		dc.MoveTo(s);
		dc.LineTo(point);
		pDoc->l.SetEnd(point);
		pDoc->UpdateAllViews(this,0,NULL);

		}
		else if(tuxing==2)
		{
			dc.Rectangle(pDoc->r.GetStart().x,pDoc->r.GetStart().y,pDoc->r.GetEnd().x,pDoc->r.GetEnd().y);
			dc.Rectangle(pDoc->r.GetStart().x,pDoc->r.GetStart().y,point.x,point.y);
			pDoc->r.SetEnd(point);
		}
		
	}
	dc.SelectObject(oldPen);

	CView::OnMouseMove(nFlags, point);
}

void CMyView::OnWidth2() 
{
	// TODO: Add your command handler code here
	CMyDoc *p=GetDocument();
	p->l.SetWidth(2);
}

void CMyView::OnWidth4() 
{
	// TODO: Add your command handler code here
	CMyDoc *p=GetDocument();
	p->l.SetWidth(4);
}



void CMyView::OnGreen() 
{
	// TODO: Add your command handler code here
	CMyDoc *p=GetDocument();
	COLORREF c=RGB(0,255,0);
	p->l.SetColor(c);

}

void CMyView::OnLine() 
{
	// TODO: Add your command handler code here
	tuxing=1;
}

void CMyView::OnRect() 
{
	// TODO: Add your command handler code here
	tuxing=2;
}

BOOL CMyView::OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo) 
{
	// TODO: Add your specialized code here and/or call the base class
	
	return CView::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);
}

void CMyView::OnRed() 
{
	// TODO: Add your command handler code here
	CMyDoc *p=GetDocument();
	COLORREF c=RGB(255,0,0);
	p->l.SetColor(c);
}

void CMyView::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here

	// Do not call CView::OnPaint() for painting messages
}

void CMyView::OnStudent() 
{
	// TODO: Add your command handler code here
	CStudentInfo1 stu;
	CMyDoc *pdoc=GetDocument();
	CClientDC dc(this);
	if(stu.DoModal()==IDOK)
	{
		CString n=stu.m_name;
		dc.TextOut(0,0,n);
	}


}

void CMyView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint) 
{
	// TODO: Add your specialized code here and/or call the base class
	CMyDoc *pDoc=GetDocument();
	s=pDoc->l.GetStart();
	e=pDoc->l.GetEnd();
	c=pDoc->l.GetColor();
	w=pDoc->l.GetWidth();
	UpdateData(FALSE);
	
}

void CMyView::OnUpdateSj(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
		
}