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| ****************************************************************************/ |
| #include "bbmediastoragelocation.h" |
| |
| #include <QStandardPaths> |
| |
| QT_BEGIN_NAMESPACE |
| |
| BbMediaStorageLocation::BbMediaStorageLocation() |
| { |
| } |
| |
| QDir BbMediaStorageLocation::defaultDir(QCamera::CaptureMode mode) const |
| { |
| QStringList dirCandidates; |
| |
| dirCandidates << QLatin1String("shared/camera"); |
| |
| if (mode == QCamera::CaptureVideo) { |
| dirCandidates << QStandardPaths::writableLocation(QStandardPaths::MoviesLocation); |
| } else { |
| dirCandidates << QStandardPaths::writableLocation(QStandardPaths::PicturesLocation); |
| } |
| |
| dirCandidates << QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation); |
| dirCandidates << QDir::homePath(); |
| dirCandidates << QDir::currentPath(); |
| dirCandidates << QDir::tempPath(); |
| |
| for (const QString &path : qAsConst(dirCandidates)) { |
| if (QFileInfo(path).isWritable()) |
| return QDir(path); |
| } |
| |
| return QDir(); |
| } |
| |
| QString BbMediaStorageLocation::generateFileName(const QString &requestedName, QCamera::CaptureMode mode, const QString &prefix, const QString &extension) const |
| { |
| if (requestedName.isEmpty()) |
| return generateFileName(prefix, defaultDir(mode), extension); |
| |
| if (QFileInfo(requestedName).isDir()) |
| return generateFileName(prefix, QDir(requestedName), extension); |
| |
| return requestedName; |
| } |
| |
| QString BbMediaStorageLocation::generateFileName(const QString &prefix, const QDir &dir, const QString &extension) const |
| { |
| const QString lastMediaKey = dir.absolutePath() + QLatin1Char(' ') + prefix + QLatin1Char(' ') + extension; |
| qint64 lastMediaIndex = m_lastUsedIndex.value(lastMediaKey, 0); |
| |
| if (lastMediaIndex == 0) { |
| // first run, find the maximum media number during the fist capture |
| const auto list = dir.entryList(QStringList() << QString("%1*.%2").arg(prefix).arg(extension)); |
| for (const QString &fileName : list) { |
| const qint64 mediaIndex = fileName.midRef(prefix.length(), fileName.size() - prefix.length() - extension.length() - 1).toInt(); |
| lastMediaIndex = qMax(lastMediaIndex, mediaIndex); |
| } |
| } |
| |
| // don't just rely on cached lastMediaIndex value, |
| // someone else may create a file after camera started |
| while (true) { |
| const QString name = QString("%1%2.%3").arg(prefix) |
| .arg(lastMediaIndex + 1, 8, 10, QLatin1Char('0')) |
| .arg(extension); |
| |
| const QString path = dir.absoluteFilePath(name); |
| if (!QFileInfo(path).exists()) { |
| m_lastUsedIndex[lastMediaKey] = lastMediaIndex + 1; |
| return path; |
| } |
| |
| lastMediaIndex++; |
| } |
| |
| return QString(); |
| } |
| |
| QT_END_NAMESPACE |