C++ iterator::fileName方法代码示例

void Watcher::checkChanges(const QString& path) { // Getting name of appeared file
    delete dir;
    dir = new QDir(path);
    listOfFiles = dir->entryInfoList();

    qDebug() << "Изменения в каталоге";
    qDebug() << listOfFiles.length() << oldLength << "\n";
    if (listOfFiles.length() > oldLength) {
        QFileInfoList::iterator i;
        QFileInfoList::iterator j;
        for (j = oldListOfFiles.begin(); j != oldListOfFiles.end(); ++j)
        {
            for (i = listOfFiles.begin(); i != listOfFiles.end(); ++i)
            {
                if (i->fileName().compare(j->fileName()) == 0)
                {
                    listOfFiles.erase(i);
                    break;
                }
            }
        }
        qDebug() << listOfFiles.first().fileName();
        dialog = new Dialog(listOfFiles.first(), this);
        dialog->show();
        setLabel(listOfFiles.first().fileName()); // Showing bubble notification in tray
    }
    oldListOfFiles = dir->entryInfoList();
    oldLength = oldListOfFiles.length();
}

bool VideoMetadataImp::removeDir(const QString &dirName)
{
    QDir d(dirName);

    QFileInfoList contents = d.entryInfoList();
    if (!contents.size())
    {
        return d.rmdir(dirName);
    }

    for (QFileInfoList::iterator p = contents.begin(); p != contents.end(); ++p)
    {
        if (p->fileName() == "." ||
            p->fileName() == "..")
        {
            continue;
        }
        if (p->isDir())
        {
            QString fileName = p->fileName();
            if (!removeDir(fileName))
                return false;
        }
        else
        {
            if (!QFile(p->fileName()).remove())
                return false;
        }
    }
    return d.rmdir(dirName);
}

void UniboardSankoreTransition::rollbackDocumentsTransition(QFileInfoList& fileInfoList)
{
    QFileInfoList::iterator fileInfo;
    for (fileInfo = fileInfoList.begin(); fileInfo != fileInfoList.end(); fileInfo += 1) {
        if (fileInfo->isDir() && fileInfo->fileName().startsWith("Uniboard Document ")){
            QString sankoreDocumentName = fileInfo->fileName();
            sankoreDocumentName.replace("Uniboard","Sankore");
            QString sankoreDocumentDirectoryPath = UBSettings::userDocumentDirectory() + "/" + sankoreDocumentName;
            if (QFileInfo(sankoreDocumentDirectoryPath).exists()){
                UBFileSystemUtils::deleteDir(sankoreDocumentDirectoryPath);
            }
        }
    }
}

/*递归删除文件夹内容 
 ** 
 **dir :文件夹的名字,绝对路径和相对路径均可 
 ** 
 **返回值 :成功后返回true;否则返回false 
*/  
bool removeFileWithDir(const QString &dirName)
{  
    static QVector<QString> dirNames;  
    QDir dir;  
    QFileInfoList filst;  
    QFileInfoList::iterator curFi;  
    //初始化
    dirNames.clear();  
    if(dir.exists()){  
        dirNames<<dirName;  
    }  
    else{  
        return true;  
    }  
    //遍历各级文件夹，并将这些文件夹中的文件删除  
    for(int i=0;i<dirNames.size();++i)
    {  
        dir.setPath(dirNames[i]);  
        filst=dir.entryInfoList(QDir::Dirs|QDir::Files  
                |QDir::Readable|QDir::Writable  
                |QDir::Hidden|QDir::NoDotAndDotDot  
                ,QDir::Name);  
        if(filst.size()>0)
        {  
            curFi=filst.begin();  
            while(curFi!=filst.end())
            {  
                //遇到文件夹,则添加至文件夹列表dirs尾部  
                if(curFi->isDir())
                {  
                    dirNames.push_back(curFi->filePath());  
                }
                else if(curFi->isFile())
                {  
                    //遇到文件,则删除之  
                    if(!dir.remove(curFi->fileName()))
                    {  
                        //return false;  
                    }  
                }  
                curFi++;  
            }//end of while  
        }  
    }  

#if 0
    //删除文件夹 
    for(int i=dirNames.size()-1;i>=0;--i)
    {  
        if(!dir.rmdir(dirNames[i]))
        {  
            //return false;  
        }
    }
#endif

    return true;  
}  

void LunarMainWindow::processCacheCleaning()
{
    QDir dir("cache/");
    QFileInfoList listDir = dir.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot);
    int i = 0;
    for(QFileInfoList::iterator it = listDir.begin(); it != listDir.end(); ++it)
    {
        if(it->lastModified().date() <= m_cacheDuration)
        {
            qDebug() << it->lastModified().date() << " " << m_cacheDuration << endl;
            QFile file("cache/" + it->fileName());
            file.remove();
            i++;
        }
    }
    qDebug() << "Cleaned " << i << " expired elements from the cache" << endl;
}

bool PathManager::SearchDirContianSuffix(const QString &dirFrom, QStringList &result, QString &suffix)
{
	QVector<QString> dirNames;
	QDir dir(dirFrom);
	QFileInfoList filst;
	QFileInfoList::iterator curFi;
	//初始化
	dirNames.clear();
	if (dir.exists()){
		dirNames << dirFrom;
	}
	else{
		return true;
	}
	//遍历各级文件夹，并将这些文件夹中的文件删除  
	for (int i = 0; i < dirNames.size(); ++i)
	{
		dir.setPath(dirNames[i]);
		filst = dir.entryInfoList(QDir::Dirs | QDir::Files
			| QDir::Readable | QDir::Writable
			| QDir::Hidden | QDir::NoDotAndDotDot
			, QDir::DirsFirst);
		if (filst.size()>0){
			curFi = filst.begin();
			while (curFi != filst.end())
			{
				//遇到文件夹,则添加至文件夹列表dirs尾部  
				if (curFi->isDir()){
					dirNames.push_back(curFi->filePath());
				}
				else if (curFi->isFile()){
					if (curFi->fileName().endsWith(suffix)){
						result.push_back(curFi->absolutePath());
						break;
					}
				}
				curFi++;
			}//end of while  
		}
	}
	return true;
}

void UBFeaturesComputingThread::scanFS(const QUrl & currentPath, const QString & currVirtualPath, const QSet<QUrl> &pFavoriteSet)
{
//    Q_ASSERT(QFileInfo(currentPath.toLocalFile()).exists());
//    if(QFileInfo(currentPath.toLocalFile()).exists())
//        return;

    QFileInfoList fileInfoList = UBFileSystemUtils::allElementsInDirectory(currentPath.toLocalFile());

    QFileInfoList::iterator fileInfo;
    for ( fileInfo = fileInfoList.begin(); fileInfo != fileInfoList.end(); fileInfo +=  1) {
        if (abort) {
            return;
        }

        QString fullFileName = fileInfo->absoluteFilePath();
        UBFeatureElementType featureType = UBFeaturesController::fileTypeFromUrl(fullFileName);
        QString fileName = fileInfo->fileName();

        QImage icon = UBFeaturesController::getIcon(fullFileName, featureType);

        if ( fullFileName.contains(".thumbnail."))
            continue;

        UBFeature testFeature(currVirtualPath + "/" + fileName, icon, fileName, QUrl::fromLocalFile(fullFileName), featureType);

        emit sendFeature(testFeature);
        emit featureSent();
        emit scanPath(fullFileName);

        if ( pFavoriteSet.find(QUrl::fromLocalFile(fullFileName)) != pFavoriteSet.end()) {
            //TODO send favoritePath from the controller or make favoritePath public and static
            emit sendFeature(UBFeature( UBFeaturesController::favoritePath + "/" + fileName, icon, fileName, QUrl::fromLocalFile(fullFileName), featureType));
        }

        if (featureType == FEATURE_FOLDER) {
            scanFS(QUrl::fromLocalFile(fullFileName), currVirtualPath + "/" + fileName, pFavoriteSet);
        }
    }
}

QStringList StorageGroup::GetFileInfoList(QString Path)
{
    QStringList files;
    QString relPath;
    bool badPath = true;

    if (Path.isEmpty() || Path == "/")
    {
        for (QStringList::Iterator it = m_dirlist.begin(); it != m_dirlist.end(); ++it)
            files << QString("sgdir::%1").arg(*it);

        return files;
    }

    for (QStringList::Iterator it = m_dirlist.begin(); it != m_dirlist.end(); ++it)
    {
        if (Path.startsWith(*it))
        {
            relPath = Path;
            relPath.replace(*it,"");
            if (relPath.startsWith("/"))
                relPath.replace(0,1,"");
            badPath = false;
        }
    }

    LOG(VB_FILE, LOG_INFO, LOC +
        QString("GetFileInfoList: Reading '%1'").arg(Path));

    if (badPath)
        return files;

    QDir d(Path);
    if (!d.exists())
        return files;

    QFileInfoList list = d.entryInfoList();
    if (!list.size())
        return files;

    for (QFileInfoList::iterator p = list.begin(); p != list.end(); ++p)
    {
        if (p->fileName() == "." ||
            p->fileName() == ".." ||
            p->fileName() == "Thumbs.db")
        {
            continue;
        }

        QString tmp;

        if (p->isDir())
            tmp = QString("dir::%1::0").arg(p->fileName());
        else
            tmp = QString("file::%1::%2::%3%4").arg(p->fileName()).arg(p->size())
                          .arg(relPath).arg(p->fileName());

        LOG(VB_FILE, LOG_DEBUG, LOC +
            QString("GetFileInfoList: (%1)").arg(tmp));
        files.append(tmp);
    }

    return files;
}

void Application::startUpdateCheck(bool forceWait) {
	updateCheckTimer.stop();
	if (updateRequestId || updateThread || updateReply || !cAutoUpdate()) return;
	
	int32 updateInSecs = cLastUpdateCheck() + 3600 + (rand() % 3600) - unixtime();
	bool sendRequest = (updateInSecs <= 0 || updateInSecs > 7200);
	if (!sendRequest && !forceWait) {
		QDir updates(cWorkingDir() + "tupdates");
		if (updates.exists()) {
			QFileInfoList list = updates.entryInfoList(QDir::Files);
			for (QFileInfoList::iterator i = list.begin(), e = list.end(); i != e; ++i) {
                if (QRegularExpression("^(tupdate|tmacupd|tlinuxupd|tlinux32upd)\\d+$", QRegularExpression::CaseInsensitiveOption).match(i->fileName()).hasMatch()) {
					sendRequest = true;
				}
			}
		}
	}
    if (cManyInstance() && !cDebug()) return; // only main instance is updating

	if (sendRequest) {
		QNetworkRequest checkVersion(cUpdateURL());
		if (updateReply) updateReply->deleteLater();

		App::setProxySettings(updateManager);
		updateReply = updateManager.get(checkVersion);
		connect(updateReply, SIGNAL(finished()), this, SLOT(updateGotCurrent()));
		connect(updateReply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(updateFailedCurrent(QNetworkReply::NetworkError)));
//		updateRequestId = MTP::send(MTPhelp_GetAppUpdate(MTP_string(cApiDeviceModel()), MTP_string(cApiSystemVersion()), MTP_string(cApiAppVersion()), MTP_string(cApiLang())), rpcDone(&Application::onAppUpdate), rpcFail(&Application::onAppUpdateFail);
		emit updateChecking();
	} else {
		updateCheckTimer.start((updateInSecs + 5) * 1000);
	}
}

void Application::updateGotCurrent() {
	if (!updateReply || updateThread) return;

	cSetLastUpdateCheck(unixtime());
	QRegularExpressionMatch m = QRegularExpression(qsl("^\\s*(\\d+)\\s*:\\s*([\\x21-\\x7f]+)\\s*$")).match(QString::fromUtf8(updateReply->readAll()));
	if (m.hasMatch()) {
		int32 currentVersion = m.captured(1).toInt();
		if (currentVersion > AppVersion) {
			updateThread = new QThread();
			connect(updateThread, SIGNAL(finished()), updateThread, SLOT(deleteLater()));
			updateDownloader = new PsUpdateDownloader(updateThread, m.captured(2));
			updateThread->start();
		}
	}
	if (updateReply) updateReply->deleteLater();
	updateReply = 0;
	if (!updateThread) {
		QDir updates(cWorkingDir() + "tupdates");
		if (updates.exists()) {
			QFileInfoList list = updates.entryInfoList(QDir::Files);
			for (QFileInfoList::iterator i = list.begin(), e = list.end(); i != e; ++i) {
                if (QRegularExpression("^(tupdate|tmacupd|tlinuxupd|tlinux32upd)\\d+$", QRegularExpression::CaseInsensitiveOption).match(i->fileName()).hasMatch()) {
					QFile(i->absoluteFilePath()).remove();
				}
			}
		}
		emit updateLatest();
	}
	startUpdateCheck(true);
	App::writeConfig();
}

qint64 Dialog::countSize(QString filePath)
{
    qint64 fileSize = 0;
    QList<QString> fileList;
    QFileInfo fileInfo(filePath);
    QString strTopDir;
    if(fileInfo.isDir()) {//文件夹加入堆栈
        m_bFolder = true;
        if (filePath.contains('/'))
        {
            QStringList strList = filePath.split("/");
            int iSize = strList.size();
            strTopDir = strList.at(iSize-1);
        }
        else if(filePath.contains('\\'))
        {
            QStringList strList = filePath.split("\\");
            int iSize = strList.size();
            strTopDir = strList.at(iSize-1);
        }
            fileList.push_back(filePath);
    } else {//如果是文件的话就取文件的特特征码，文件特征码用文件的创建，最后的修改时间字符串和文件的路径取MD5
            m_bFolder = false;
            m_fileList.push_front(filePath);
            fileSize = fileInfo.size();
            QString createTime = fileInfo.created().toString();
            QString modifiedTime = fileInfo.lastModified().toString();
            QString checkString = createTime + modifiedTime;
            checkString += filePath;
            //m_fileCheck = MD5String(checkString.toLocal8Bit().data());
    }

    while(!fileList.isEmpty()){//判断堆栈中是否有文件夹
            QString filePath = fileList.value(0);//取堆栈的顶部位置
            QDir dir(filePath);//文件夹信息
            dir.setFilter(QDir::Dirs|QDir::Files|QDir::Hidden|QDir::System);
            dir.setSorting(QDir::DirsFirst);
            QFileInfoList list = dir.entryInfoList();//去得文件夹的文件信息
            QFileInfoList::iterator iter;
            if (2 == list.size())
            {
                qDebug() << "empty dir : " << filePath;
                m_emptyFolderList.push_back(filePath);
            }
            for(iter=list.begin(); iter!=list.end(); iter++) {//遍历文件夹内部
                    //m_stopMutex.lock();
//                    if(m_bStop) {
//                            m_stopMutex.unlock();
//                            return -1;
//                    }
                   // m_stopMutex.unlock();
                    //qDebug() << "filename : " << iter->fileName();
                    if(iter->fileName() == "." || iter->fileName() == "..") {
                            continue;
                    }
                    if(iter->isDir()) {//如果为文件夹的话加入到堆栈
                            fileList.push_back(iter->filePath());
                    } else {//如果是文件的话，取到文件的大小，并且把文件加入到发送list中
                            fileSize += iter->size();
                            //QString str
                            m_fileList.push_front(iter->filePath());
                    }
            }
            fileList.pop_front();//堆栈顶部的元素已经处理完毕，出堆栈
    }
//    if(m_fileCheck.size() == 0) {//文件夹的特征码是文件的所有路径取MD5
//            QString checkString;
//            QList<QString>::iterator iter;
//            for(iter=m_fileList.begin(); iter!=m_fileList.end(); iter++) {
//                    checkString += (*iter);
//            }
//            m_fileCheck = MD5String(checkString.toLocal8Bit().data());
//    }

    qDebug() << "file or director size : " << fileSize;
    return fileSize;
}

QString
AudioPluginOSCGUI::getGUIFilePath(QString identifier)
{
    QString type, soName, label;
    PluginIdentifier::parseIdentifier(identifier, type, soName, label);

    RG_DEBUG << "AudioPluginOSCGUI::getGUIFilePath(" << identifier << ")";

    QFileInfo soInfo(soName);
    if (soInfo.isRelative()) {
        //!!!
        RG_DEBUG << "AudioPluginOSCGUI::AudioPluginOSCGUI: Unable to deal with relative .so path \"" << soName << "\" in identifier \"" << identifier << "\" yet";
        throw Exception("Can't deal with relative .soname");
    }

    QDir dir(soInfo.dir());
    QString fileBase(soInfo.completeBaseName());

    if (!dir.cd(fileBase)) {
        RG_DEBUG << "AudioPluginOSCGUI::AudioPluginOSCGUI: No GUI subdir for plugin .so " << soName;
        throw Exception("No GUI subdir available");
    }

    QFileInfoList list = dir.entryInfoList();

    // in order of preference:
    const char *suffixes[] = { "_rg", "_kde", "_qt", "_gtk2", "_gtk", "_x11", "_gui"
                             };
    int nsuffixes = int(sizeof(suffixes) / sizeof(suffixes[0]));

    for (int k = 0; k <= nsuffixes; ++k) {

        for (int fuzzy = 0; fuzzy <= 1; ++fuzzy) {

            QFileInfoList::iterator info;

            for (info = list.begin(); info != list.end(); ++info) { //### JAS Check for errors
                RG_DEBUG << "Looking at " << info->fileName() << " in path "
                << info->filePath() << " for suffix " << (k == nsuffixes ? "(none)" : suffixes[k]) << ", fuzzy " << fuzzy << endl;

                if (!(info->isFile() || info->isSymLink())
                        || !info->isExecutable()) {
                    RG_DEBUG << "(not executable)";
                    continue;
                }

                if (fuzzy) {
                    if (info->fileName().left(fileBase.length()) != fileBase)
                        continue;
                    RG_DEBUG << "(is file base)";
                } else {
                    if (info->fileName().left(label.length()) != label)
                        continue;
                    RG_DEBUG << "(is label)";
                }

                if (k == nsuffixes || info->fileName().toLower().endsWith(suffixes[k])) {
                    RG_DEBUG << "(ends with suffix " << (k == nsuffixes ? "(none)" : suffixes[k]) << " or out of suffixes)";
                    return info->filePath();
                }
                RG_DEBUG << "(doesn't end with suffix " << (k == nsuffixes ? "(none)" : suffixes[k]) << ")";
            }
        }
    }

    return QString();
}