uuprog开发教程：烧写工程管理2

liyf · 发表于 2014-11-30 07:14:59

上节我们已经讲解了ppf文件的结构，这节我们将继续讲解读写代码部分。使用文件结构来读写文件可以方便有效的读取和写入而又不会出错，通过结构体有效的匹配每个文件体中的各变量。

从上图可以看出借个工程文件操作函数：OnFileProjectOpen()打开工程文件、OnFileProjectSaveAs()保存工程文件、OnFileProjectAttribute()设置工程属性、OnFileProjectClose()关闭工程。打开和保存基本就是两个对立的操作过程，也是整个操作的难点。
1、打开工程

void CUUProgDlg::OnFileProjectOpen()
{
// TODO: Add your command handler code here
CFile ldfile;
CString m_sFileExt;
SetAppLog("加载工程开始...");
//保存工程文件代码
CFileDialog mDlg(TRUE,".PPF",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"编程器工程文件(*.ppf)|*.ppf||",this);
if(mDlg.DoModal() == IDOK)
{
m_sProjectFilename = mDlg.GetPathName();
m_sFileExt = mDlg.GetFileExt();
m_sFileExt.MakeUpper();
//加载文件
if(!m_sProjectFilename.IsEmpty())
{
SetAppLog("加载文件："+m_sProjectFilename);
if(ldfile.Open(m_sProjectFilename,CFile::shareCompat|CFile::modeRead,NULL))
{
int nFileSize;
nFileSize=ldfile.GetLength();
if(m_sFileExt=="PPF")
{
char* pFileBuf=(char*)GlobalAlloc(GMEM_FIXED,nFileSize+1);
memset(pFileBuf,0,nFileSize+1);
ldfile.Read(pFileBuf,nFileSize);
memcpy(&m_stPFileHead,pFileBuf,sizeof(ProjectFileHeadStruct));
memcpy(&m_stPFile,&pFileBuf[sizeof(ProjectFileHeadStruct)],sizeof(ProjectFileStruct));
CProjectPasswordDlg passworddlg;
if(passworddlg.DoModal() == IDOK)
{
if(m_stPFile.AccessPassword != passworddlg.m_sProjectPassword)
{
SetAppLog("访问密码错误");
AfxMessageBox("访问密码错误");
GlobalFree(pFileBuf);
ldfile.Close();
ZeroMemory(&m_stPFile, sizeof(ProjectFileStruct));
ZeroMemory(&m_stPFileHead, sizeof(ProjectFileHeadStruct));
return;
}
}
else
{
GlobalFree(pFileBuf);
ldfile.Close();
SetAppLog("取消加载工程");
ZeroMemory(&m_stPFile, sizeof(ProjectFileStruct));
ZeroMemory(&m_stPFileHead, sizeof(ProjectFileHeadStruct));
return;
}
memcpy(pProgBuff,&pFileBuf[sizeof(ProjectFileHeadStruct)+sizeof(ProjectFileStruct)],nFileSize-sizeof(ProjectFileHeadStruct)-sizeof(ProjectFileStruct));
GlobalFree(pFileBuf);
ldfile.Close();
SetAppLog("加载完成："+Int2Str(nFileSize)+"字节");
SetMenuItem(false);
SetLoadFileName(m_sProjectFilename);
CString temp;
for (int i=0; i<m_arDeviceList.GetSize(); i++)
{
temp = m_arDeviceList.GetAt(i).DeviceName;
if(m_stPFile.DeviceName == temp)
{
SetDeviceInfo(i);
break;
}
}
}
else
{
SetAppLog("文件格式不支持");
AfxMessageBox("文件格式不支持");
}
}
else
{
SetAppLog("加载文件失败");
AfxMessageBox("加载指定的文件出错");
}
}
}
else
{
SetAppLog("取消加载文件");
}
}

复制代码

2、保存工程

void CUUProgDlg::OnFileProjectSaveAs()
{
// TODO: Add your command handler code here
CString projectfilename;
CFile savefile;
CString m_sFileExt;
int buffsize;
SetAppLog("工程保存开始...");
buffsize = GetMinLength(pProgBuff,m_dDeviceSize);
if (buffsize ==0)
{
SetAppLog("缓冲区无数据，取消保存");
AfxMessageBox("缓冲区无数据，不需保存");
return;
}
CFileDialog mDlg(FALSE,".PPF",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"编程器工程文件(*.ppf)|*.ppf||",this);
if(mDlg.DoModal() == IDOK)
{
projectfilename = mDlg.GetPathName();
m_sFileExt = mDlg.GetFileExt();
m_sFileExt.MakeUpper();
SetAppLog("保存为："+projectfilename);
//保存文件代码
if (m_sFileExt=="PPF")
{
if(savefile.Open(projectfilename,CFile::shareCompat|CFile::modeCreate|CFile::modeWrite,NULL))
{
m_stPFile.BuffCheckCRC = m_dBuffCheckCRC;
m_stPFileHead.ProjectFileCRC = m_dProjectFileCRC;
m_stPFile.BuffSize = buffsize;
strcpy(m_stPFile.UUProgSN,m_sUUProgSN);
strcpy(m_stPFileHead.Appname,"UUProg V"+m_sAppVer);
strcpy(m_stPFileHead.ProjectFileVer,m_sAppVer);
strcpy(m_stPFile.DeviceName,m_sDeviceName);
//m_editBuf2.GetData(m_Pro.m_pReadBuf,0x10000);
savefile.Write(&m_stPFileHead,sizeof(ProjectFileHeadStruct));
savefile.Write(&m_stPFile,sizeof(ProjectFileStruct));
savefile.Write(pProgBuff,buffsize);
savefile.Close();
SetAppLog("保存完成："+Int2Str(sizeof(ProjectFileHeadStruct)+sizeof(ProjectFileStruct)+buffsize)+"字节");
}
}
else
{
SetAppLog("文件格式不支持");
AfxMessageBox("文件格式不支持");
}
}
else
{
SetAppLog("取消保存");
}
}