diff options
Diffstat (limited to 'src/plugins/avfoundation/camera/avfstoragelocation.mm')
-rw-r--r-- | src/plugins/avfoundation/camera/avfstoragelocation.mm | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/plugins/avfoundation/camera/avfstoragelocation.mm b/src/plugins/avfoundation/camera/avfstoragelocation.mm new file mode 100644 index 000000000..24b8391e1 --- /dev/null +++ b/src/plugins/avfoundation/camera/avfstoragelocation.mm @@ -0,0 +1,137 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "avfstoragelocation.h" +#include "QtCore/qstandardpaths.h" + + +QT_BEGIN_NAMESPACE + + +AVFStorageLocation::AVFStorageLocation() +{ +} + +AVFStorageLocation::~AVFStorageLocation() +{ +} + +/*! + * Generate the actual file name from user requested one. + * requestedName may be either empty (the default dir and naming theme is used), + * points to existing dir (the default name used) + * or specify the full actual path. + */ +QString AVFStorageLocation::generateFileName(const QString &requestedName, + QCamera::CaptureMode mode, + const QString &prefix, + const QString &ext) const +{ + if (requestedName.isEmpty()) + return generateFileName(prefix, defaultDir(mode), ext); + + if (QFileInfo(requestedName).isDir()) + return generateFileName(prefix, QDir(requestedName), ext); + + return requestedName; +} + +QDir AVFStorageLocation::defaultDir(QCamera::CaptureMode mode) const +{ + QStringList dirCandidates; + + 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(); + + Q_FOREACH (const QString &path, dirCandidates) { + if (QFileInfo(path).isWritable()) + return QDir(path); + } + + return QDir(); +} + +QString AVFStorageLocation::generateFileName(const QString &prefix, const QDir &dir, const QString &ext) const +{ + QString lastClipKey = dir.absolutePath()+QLatin1Char(' ')+prefix+QLatin1Char(' ')+ext; + int lastClip = m_lastUsedIndex.value(lastClipKey, 0); + + if (lastClip == 0) { + //first run, find the maximum clip number during the fist capture + Q_FOREACH (const QString &fileName, dir.entryList(QStringList() << QString("%1*.%2").arg(prefix).arg(ext))) { + int imgNumber = fileName.mid(prefix.length(), fileName.size()-prefix.length()-ext.length()-1).toInt(); + lastClip = qMax(lastClip, imgNumber); + } + } + + + //don't just rely on cached lastClip value, + //someone else may create a file after camera started + while (true) { + QString name = QString("%1%2.%3").arg(prefix) + .arg(lastClip+1, + 4, //fieldWidth + 10, + QLatin1Char('0')) + .arg(ext); + + QString path = dir.absoluteFilePath(name); + if (!QFileInfo(path).exists()) { + m_lastUsedIndex[lastClipKey] = lastClip+1; + return path; + } + + lastClip++; + } + + return QString(); +} + + +QT_END_NAMESPACE |