绘图程序

开发平台：
Visual C++

GraphicView.cpp：源码内容
							// GraphicView.cpp : implementation of the CGraphicView class
//
#include "stdafx.h"
#include "Graphic.h"
#include "GraphicDoc.h"
#include "GraphicView.h"
#include "SettingDialog.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CGraphicView
IMPLEMENT_DYNCREATE(CGraphicView, CView)
BEGIN_MESSAGE_MAP(CGraphicView, CView)
	//{{AFX_MSG_MAP(CGraphicView)
	ON_COMMAND(ID_POINT, OnPoint)
	ON_COMMAND(ID_LINE, OnLine)
	ON_COMMAND(ID_RETANGLE, OnRetangle)
	ON_COMMAND(ID_ELLIPSE, OnEllipse)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_UPDATE_COMMAND_UI(ID_LINE, OnUpdateLine)
	ON_UPDATE_COMMAND_UI(ID_POINT, OnUpdatePoint)
	ON_UPDATE_COMMAND_UI(ID_ELLIPSE, OnUpdateEllipse)
	ON_UPDATE_COMMAND_UI(ID_RETANGLE, OnUpdateRetangle)
	ON_COMMAND(ID_LINEWIDTHSETTING, OnLinewidthsetting)
	ON_COMMAND(ID_COLOR, OnColor)
	//}}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()
/////////////////////////////////////////////////////////////////////////////
// CGraphicView construction/destruction
CGraphicView::CGraphicView()
{
	// TODO: add construction code here
	m_nDrawType=0;
	m_originpt=0;
	m_nLineWidth=1;
	m_nColorSetting=RGB(0,0,255);
	m_nLineStyle=0;
}
CGraphicView::~CGraphicView()
{
}
BOOL CGraphicView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs
	return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CGraphicView drawing
void CGraphicView::OnDraw(CDC* pDC)
{
	CGraphicDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	CBrush *pBrush=CBrush::FromHandle((HBRUSH)GetStockObject(NULL_BRUSH));
	pDC->SelectObject(pBrush);
	for(int i=0;i<m_ptrArray.GetSize();i++)
	{
		CPen pen(((StorePoint*)m_ptrArray.GetAt(i))->m_nLineStyle,((StorePoint*)m_ptrArray.GetAt(i))->m_nLineWidth,
			/*RGB(0,0,255)m_nColorSetting*/((StorePoint*)m_ptrArray.GetAt(i))->m_nColor);//画笔
	    pDC->SelectObject(&pen);
		switch(((StorePoint*)m_ptrArray.GetAt(i))->m_nDrawType)
		{
		case 1:
			pDC->SetPixel(((StorePoint*)m_ptrArray.GetAt(i))->m_ptEnd,RGB(0,0,0));
			break;
		case 2:
			pDC->MoveTo(((StorePoint*)m_ptrArray.GetAt(i))->m_ptOrigin);
			pDC->LineTo(((StorePoint*)m_ptrArray.GetAt(i))->m_ptEnd);
			break;
		case 3:
			pDC->Rectangle(CRect(((StorePoint*)m_ptrArray.GetAt(i))->m_ptOrigin,
				((StorePoint*)m_ptrArray.GetAt(i))->m_ptEnd));
			break;
		case 4:pDC->Ellipse(CRect(((StorePoint*)m_ptrArray.GetAt(i))->m_ptOrigin,
				   ((StorePoint*)m_ptrArray.GetAt(i))->m_ptEnd));
		}
	}
	// TODO: add draw code for native data here
}
/////////////////////////////////////////////////////////////////////////////
// CGraphicView printing
BOOL CGraphicView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}
void CGraphicView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}
void CGraphicView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CGraphicView diagnostics
#ifdef _DEBUG
void CGraphicView::AssertValid() const
{
	CView::AssertValid();
}
void CGraphicView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}
CGraphicDoc* CGraphicView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CGraphicDoc)));
	return (CGraphicDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CGraphicView message handlers
void CGraphicView::OnPoint() 
{
	// TODO: Add your command handler code here
	m_nDrawType=1	;
}
void CGraphicView::OnLine() 
{
	// TODO: Add your command handler code here
	m_nDrawType=2;
}
void CGraphicView::OnRetangle() 
{
	// TODO: Add your command handler code here
	m_nDrawType=3;
	
	
}
void CGraphicView::OnEllipse() 
{
	// TODO: Add your command handler code here
	m_nDrawType=4;
	
}
void CGraphicView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_originpt=point;
	CView::OnLButtonDown(nFlags, point);
}
void CGraphicView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CClientDC dc(this);
	CPen pen(m_nLineStyle,m_nLineWidth,/*RGB(0,0,255)*/m_nColorSetting);//画笔
	pOldpen=dc.SelectObject(&pen);
	CBrush *pBrush=CBrush::FromHandle((HBRUSH)GetStockObject(NULL_BRUSH));//画刷
	pOldbrush=dc.SelectObject(pBrush);
	switch(m_nDrawType)
	{
	case 1:
		
		dc.SetPixel(point,m_nColorSetting);
		
		break;
	case 2:
		dc.MoveTo(m_originpt);
		dc.LineTo(point);
		
		break;
	case 3:
		dc.Rectangle(CRect(m_originpt,point));
		break;
	case 4:
		dc.Ellipse(CRect(m_originpt,point));
		break;
	}
	
	
	
    
	tag_Point *pStorePoint=new tag_Point(m_originpt,point,m_nDrawType,m_nColorSetting,m_nLineWidth,m_nLineStyle);
	m_ptrArray.Add(pStorePoint);
	CView::OnLButtonUp(nFlags, point);
}
void CGraphicView::OnUpdateLine(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck((m_nDrawType==2));
	
}
void CGraphicView::OnUpdatePoint(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck((m_nDrawType==1));
	
}
void CGraphicView::OnUpdateEllipse(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck((m_nDrawType==4));
	
}
void CGraphicView::OnUpdateRetangle(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck((m_nDrawType==3));
	
}
void CGraphicView::OnLinewidthsetting() 
{
	// TODO: Add your command handler code here
	SettingDialog dlg;
	dlg.m_nLineStyle=m_nLineStyle;
	dlg.m_nLineWidth=m_nLineWidth;
	if(IDOK==dlg.DoModal())
	{
		m_nLineWidth=dlg.m_nLineWidth;
		m_nLineStyle=dlg.m_nLineStyle;
	}
}
void CGraphicView::OnColor() 
{
	// TODO: Add your command handler code here
	CColorDialog dlg;
	dlg.m_cc.Flags|=CC_RGBINIT|CC_FULLOPEN;//初始化
	dlg.m_cc.rgbResult=m_nColorSetting;
	if(IDOK==dlg.DoModal())
	{	
		m_nColorSetting=dlg.m_cc.rgbResult;
	};
	
}

						