eraser.cpp

windows核心编程,详细讲述WINDOWS编程原理

// Eraser.cpp: implementation of the CEraser class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "ll.h"
#include "Eraser.h"

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

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CEraser::CEraser()
{

}

CEraser::~CEraser()
{

}

void CEraser::Draw(CDC *pDC)
{
	CPen pen(PS_SOLID,4,RGB(255,255,255));
	CPen *pOldPen=pDC->SelectObject(&pen);
	CBrush brush(m_Brushcolor);
	CBrush *pOldBrush=pDC->SelectObject(&brush);
	int i;
for(i=1;i<m_ptArray1.GetSize();i++)
{
CPoint &pt1=m_ptArray1.ElementAt(i);
CPoint &pt2=m_ptArray2.ElementAt(i);
//pDC->Rectangle(pt1.x,pt1.y,pt2.x,pt2.y);
pDC->MoveTo(pt1);
pDC->LineTo(pt2);
}	

}

void CEraser::SetPen(int lt, UINT pw, COLORREF cl)
{
m_nLinetype=lt;
m_nPenwidth=pw;
m_Pencolor=cl;
}

void CEraser::SetPoint(CPoint pt1, CPoint pt2)
{
 m_ptArray1.Add(pt1); 
  m_ptArray2.Add(pt2);
}