myeditdoc.cpp

小编辑器（存在问题

// MyEditDoc.cpp : implementation of the CMyEditDoc class
//

#include "stdafx.h"
#include "MyEdit.h"

#include "MyEditDoc.h"
#include "MyEditView.h"
#include "MyGraphView.h"

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

const DWORD dwBufSize=10000;//200000000;

/////////////////////////////////////////////////////////////////////////////
// CMyEditDoc

IMPLEMENT_DYNCREATE(CMyEditDoc, CDocument)

BEGIN_MESSAGE_MAP(CMyEditDoc, CDocument)
	//{{AFX_MSG_MAP(CMyEditDoc)
		// 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()

/////////////////////////////////////////////////////////////////////////////
// CMyEditDoc construction/destruction

CMyEditDoc::CMyEditDoc()
{
	textBuf=NULL;
	textBuf=new char[dwBufSize];
}

CMyEditDoc::~CMyEditDoc()
{
	
}

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

	sprintf(textBuf,"Welcome to use my Text&Graph editTool.........");

	((CMyEditView *)m_viewList.GetHead())->SetText(textBuf,strlen(textBuf));//16进制

	((CMyGraphView *)m_viewList.GetHead())->SetText(strlen(textBuf));//波形

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CMyEditDoc serialization

void CMyEditDoc::Serialize(CArchive& ar)
{
	((CEditView*)m_viewList.GetHead())->SerializeRaw(ar);
/*
	if (ar.IsStoring())
	{
		// TODO: add storing code here
	}
	else
	{
		// TODO: add loading code here
	}
*/
}

/////////////////////////////////////////////////////////////////////////////
// CMyEditDoc diagnostics

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyEditDoc commands

BOOL CMyEditDoc::OnOpenDocument(LPCTSTR lpszPathName) 
{
//	if (!CDocument::OnOpenDocument(lpszPathName))
//		return FALSE;
	HANDLE hFile=NULL;

	hFile=::CreateFile(lpszPathName,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,
		FILE_ATTRIBUTE_NORMAL|FILE_FLAG_SEQUENTIAL_SCAN,NULL);
	if(hFile==INVALID_HANDLE_VALUE)
		return FALSE;

	DWORD dwCurSize;

	if(!::ReadFile(hFile,textBuf,dwBufSize,&dwCurSize,NULL))
		return FALSE;
	textBuf[dwCurSize]='\0';
	((CMyEditView*)m_viewList.GetHead())->SetText(textBuf,dwCurSize);

	((CMyGraphView*)m_viewList.GetHead())->SetText(dwCurSize);//打开时需要读入数据，存储时只存文档不需存储波形

	CloseHandle(hFile);	
	return TRUE;
}

BOOL CMyEditDoc::OnSaveDocument(LPCTSTR lpszPathName) 
{
//	return CDocument::OnSaveDocument(lpszPathName);
	HANDLE hFile;
	hFile=::CreateFile(lpszPathName,GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_ALWAYS,
		FILE_ATTRIBUTE_NORMAL|FILE_FLAG_SEQUENTIAL_SCAN,NULL);
	if(hFile==INVALID_HANDLE_VALUE)
		return FALSE;

	DWORD dwCurSize;

	if(!::WriteFile(hFile,textBuf,((CMyEditView *)m_viewList.GetHead())->m_CharCount, &dwCurSize, NULL))//不需存储波形
		return FALSE;

	CloseHandle(hFile); 
	return TRUE;
}

void CMyEditDoc::OnCloseDocument() 
{
	if(textBuf!=NULL)
		delete[] textBuf;
	CDocument::OnCloseDocument();
}