dglsdoc.cpp

演示道格拉斯数据压缩算法

// DglsDoc.cpp : implementation of the CDglsDoc class
//

#include "stdafx.h"
#include "Dgls.h"

#include "DglsDoc.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDglsDoc

IMPLEMENT_DYNCREATE(CDglsDoc, CDocument)

BEGIN_MESSAGE_MAP(CDglsDoc, CDocument)
	//{{AFX_MSG_MAP(CDglsDoc)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDglsDoc construction/destruction

CDglsDoc::CDglsDoc()
{
	// TODO: add one-time construction code here

}

CDglsDoc::~CDglsDoc()
{
}

BOOL CDglsDoc::OnNewDocument()
{
	if (!CDocument::OnNewDocument())
		return FALSE;

	// TODO: add reinitialization code here
	// (SDI documents will reuse this document)

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CDglsDoc serialization

void CDglsDoc::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		m_DocVirtual= &m_MLine;
		m_DocVirtual->Serialize(ar);
		// TODO: add storing code here
	}
	else
	{
		m_DocVirtual= &m_MLine;
		m_DocVirtual->Serialize(ar);
		// TODO: add loading code here
	}
}

/////////////////////////////////////////////////////////////////////////////
// CDglsDoc diagnostics

#ifdef _DEBUG
void CDglsDoc::AssertValid() const
{
	CDocument::AssertValid();
}

void CDglsDoc::Dump(CDumpContext& dc) const
{
	CDocument::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CDglsDoc commands
//***************************连续直线
IMPLEMENT_SERIAL(CMLine,CObject,1)
CMLine::CMLine(int* pointX,int* pointY,int num,int re)
{
	NUM=num;
	for(int i=0;i<NUM;i++)
	{
		PointX[i]=pointX[i];
		PointY[i]=pointY[i];
	}
	RE=re;
}
void CMLine::My (CDC *pDC)
{
	for(int i=1;i<NUM;i++)
	{
		pDC->MoveTo(PointX[i-1],PointY[i-1]);
		pDC->LineTo(PointX[i],PointY[i]);
	}
	if(RE==1)
	{
		pDC->MoveTo(PointX[NUM-1],PointY[NUM-1]);
		pDC->LineTo(PointX[0],PointY[0]);
	}
}
void CMLine::Serialize (CArchive &ar)
{
	if(ar.IsStoring())
	{
		for(int i=0;i<NUM;i++)ar<<PointX[i];
		for(i=0;i<NUM;i++)ar<<PointY[i];
		ar<<NUM<<RE;
	}
	else
	{
		for(int i=0;i<NUM;i++)ar>>PointX[i];
		for(i=0;i<NUM;i++)ar>>PointY[i];
		ar>>NUM>>RE;
	}
}
void CDglsDoc::AddMLine(int* pointX,int* pointY,int num,int re)
{
	CMLine* pMLine=new CMLine(pointX,pointY,num,re);
	m_MLine.Add(pMLine);
	SetModifiedFlag ();
}
CMLine* CDglsDoc::GetMLine(int index)
{
	if (index<0||index>m_MLine.GetUpperBound ())
		return 0;
	return (CMLine*)m_MLine.GetAt (index);
}
void CDglsDoc::DeleteContents ()//重载成员函数，清除当前文档的内容
{
	int index;
	index=m_MLine.GetSize();
	while(index--)
		delete m_MLine.GetAt(index);
	m_MLine.RemoveAll();//释放指针数组
}