二进制编辑doc.cpp

二进制浏览、编辑的源程序

// 二进制编辑Doc.cpp : implementation of the CMyDoc class
//

#include "stdafx.h"
#include "二进制编辑.h"

#include "二进制编辑Doc.h"
#include "HexEditView.h"

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

const DWORD dwAddition = 1024;

/////////////////////////////////////////////////////////////////////////////
// CMyDoc

IMPLEMENT_DYNCREATE(CMyDoc, CDocument)

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

/////////////////////////////////////////////////////////////////////////////
// CMyDoc construction/destruction

CMyDoc::CMyDoc()
{
	// TODO: add one-time construction code here
	m_pcBuf = NULL;
	dwBufSize = dwAddition*dwAddition;
	m_pcBuf = (char*)malloc(dwBufSize);
}

CMyDoc::~CMyDoc()
{
}

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

	sprintf(m_pcBuf, "大家好呀有什么问题？aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
	((CHexEditView *)m_viewList.GetHead())->SetText(m_pcBuf, strlen(m_pcBuf));

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CMyDoc serialization

void CMyDoc::Serialize(CArchive& ar)
{
	// CEditView contains an edit control which handles all serialization
	((CEditView*)m_viewList.GetHead())->SerializeRaw(ar);
}

/////////////////////////////////////////////////////////////////////////////
// CMyDoc diagnostics

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyDoc commands

BOOL CMyDoc::OnOpenDocument(LPCTSTR lpszPathName) 
{
	DWORD dwCurSize;

	CFile file(lpszPathName, CFile::modeReadWrite | CFile::shareDenyWrite);
	dwCurSize = file.GetLength ()+2;
	if(dwCurSize > dwBufSize)
	{
		dwBufSize = dwCurSize;
		m_pcBuf = (char*)realloc(m_pcBuf, dwBufSize);
	}
	dwCurSize = file.Read (m_pcBuf,dwCurSize);
		
	m_pcBuf[dwCurSize] = '\0';
	((CHexEditView *)m_viewList.GetHead())->SetText(m_pcBuf, dwCurSize);

	return TRUE;
}

BOOL CMyDoc::OnSaveDocument(LPCTSTR lpszPathName)
{
	HANDLE hFile = NULL;
	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, m_pcBuf, ((CHexEditView *)m_viewList.GetHead())->m_CharCount, &dwCurSize, NULL))
		return FALSE;

	CloseHandle(hFile); 
	return TRUE;
}

void CMyDoc::OnCloseDocument() 
{
	if(m_pcBuf != NULL)
		free(m_pcBuf);
	CDocument::OnCloseDocument();
}

char* CMyDoc::JudgeMem(DWORD count)
{
	if(count > dwBufSize)
	{
		dwBufSize += dwAddition;
		m_pcBuf = (char*)realloc(m_pcBuf, dwBufSize);
	}
	return m_pcBuf;
}