graph.cpp

孙鑫老师的vc深入详解的教程的源码和PPT

// Graph.cpp: implementation of the CGraph class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Graphic.h"
#include "Graph.h"

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

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
IMPLEMENT_SERIAL(CGraph,CObject,1)
CGraph::CGraph()
{

}

CGraph::CGraph(UINT m_nDrawType,CPoint m_ptOrigin,CPoint m_ptEnd)
{
	this->m_nDrawType=m_nDrawType;
	this->m_ptOrigin=m_ptOrigin;
	this->m_ptEnd=m_ptEnd;
}

CGraph::~CGraph()
{

}
void CGraph::Serialize(CArchive &ar)
{
	if(ar.IsStoring())
	{
		ar<<m_nDrawType<<m_ptOrigin<<m_ptEnd;
	}
	else
	{
		ar>>m_nDrawType>>m_ptOrigin>>m_ptEnd;
	}
}

void CGraph::Draw(CDC *pDC)
{
	//创建画刷并选入设备描述表中
	CBrush *pBrush=CBrush::FromHandle((HBRUSH)GetStockObject(NULL_BRUSH));
    CBrush *pOldBrush=pDC->SelectObject(pBrudh);
	//根据绘制类型绘制相应的图形
	switch (m_nDrawType)
	{
    case1:
	pDC->SetPixel(m_ptEnd,RGB(0,0,0));
	break;
case2:
	MoveTo(m_ptOrigin);
	LineTo(m_ptEnd);
    break;
case3:
	pDC->Rectangle(CRect(m_ptOrigin,m_ptEnd));
	break;
case4:
	pDC->Ellipse(CRect(m_ptOrigin,m_ptEnd));
	break;
}
	pDC->SelectObject(pOldBrush);


}