line.cpp

用多态实现的画图小程序

// Line.cpp: implementation of the CLine class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "lq01.h"
#include "Line.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
IMPLEMENT_SERIAL(CLine, CShape, 0)
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CLine::CLine()
{

}

CLine::~CLine()
{

}

void CLine::Draw(CDC *pDC, CPoint ptStart, CPoint ptEnd,COLORREF iColor)
{
//	pDC->SelectStockObject (NULL_BRUSH);
//	pDC->SetROP2 (R2_NOT);
	CPen lpen(PS_SOLID,1,m_iColor);
	CPen *pOldPen=pDC->SelectObject (&lpen);
	pDC->MoveTo (ptStart);
	pDC->LineTo (ptEnd);
	pDC->SelectObject (pOldPen);

}

CLine::CLine(CPoint ptStart, CPoint ptEnd, COLORREF iColor)
{
	m_ptStart=ptStart;
	m_ptEnd=ptEnd;
	m_iColor=iColor;

}