1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/****************************************************************************
**
** Copyright (C) 2016 Research In Motion
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
|
