1 /* ============================================================
2  *
3  * This file is a part of digiKam project
4  * https://www.digikam.org
5  *
6  * Date        : 2010-08-20
7  * Description : central place for MetaEngine settings
8  *
9  * Copyright (C) 2010-2021 by Gilles Caulier <caulier dot gilles at gmail dot com>
10  *
11  * This program is free software; you can redistribute it
12  * and/or modify it under the terms of the GNU General
13  * Public License as published by the Free Software Foundation;
14  * either version 2, or (at your option)
15  * any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * ============================================================ */
23 
24 #include "metaenginesettings.h"
25 
26 // Qt includes
27 
28 #include <QDir>
29 #include <QFileInfo>
30 #include <QMutex>
31 
32 // KDE includes
33 
34 #include <kconfiggroup.h>
35 #include <ksharedconfig.h>
36 
37 // Local includes
38 
39 #include "digikam_debug.h"
40 
41 namespace Digikam
42 {
43 
44 class Q_DECL_HIDDEN MetaEngineSettings::Private
45 {
46 public:
47 
Private()48     explicit Private()
49         : mutex      (),
50           configGroup(QLatin1String("Metadata Settings"))
51     {
52     }
53 
54     MetaEngineSettingsContainer settings;
55     QMutex                      mutex;
56 
57     const QString               configGroup;
58 
59 public:
60 
61     MetaEngineSettingsContainer readFromConfig() const;
62     void                        writeToConfig()  const;
63     MetaEngineSettingsContainer setSettings(const MetaEngineSettingsContainer& s);
64 };
65 
readFromConfig() const66 MetaEngineSettingsContainer MetaEngineSettings::Private::readFromConfig() const
67 {
68     MetaEngineSettingsContainer s;
69     KSharedConfig::Ptr config = KSharedConfig::openConfig();
70     KConfigGroup group        = config->group(configGroup);
71     s.readFromConfig(group);
72 
73     return s;
74 }
75 
writeToConfig() const76 void MetaEngineSettings::Private::writeToConfig() const
77 {
78     KSharedConfig::Ptr config = KSharedConfig::openConfig();
79     KConfigGroup group        = config->group(configGroup);
80     settings.writeToConfig(group);
81 }
82 
setSettings(const MetaEngineSettingsContainer & s)83 MetaEngineSettingsContainer MetaEngineSettings::Private::setSettings(const MetaEngineSettingsContainer& s)
84 {
85     QMutexLocker lock(&mutex);
86     MetaEngineSettingsContainer old;
87     old      = settings;
88     settings = s;
89 
90     return old;
91 }
92 
93 // -----------------------------------------------------------------------------------------------
94 
95 class Q_DECL_HIDDEN MetaEngineSettingsCreator
96 {
97 public:
98 
99     MetaEngineSettings object;
100 };
101 
Q_GLOBAL_STATIC(MetaEngineSettingsCreator,metaEngineSettingsCreator)102 Q_GLOBAL_STATIC(MetaEngineSettingsCreator, metaEngineSettingsCreator)
103 
104 // -----------------------------------------------------------------------------------------------
105 
106 MetaEngineSettings* MetaEngineSettings::instance()
107 {
108     return &metaEngineSettingsCreator->object;
109 }
110 
MetaEngineSettings()111 MetaEngineSettings::MetaEngineSettings()
112     : d(new Private)
113 {
114     readFromConfig();
115     qRegisterMetaType<MetaEngineSettingsContainer>("MetaEngineSettingsContainer");
116 }
117 
~MetaEngineSettings()118 MetaEngineSettings::~MetaEngineSettings()
119 {
120     delete d;
121 }
122 
settings() const123 MetaEngineSettingsContainer MetaEngineSettings::settings() const
124 {
125     QMutexLocker lock(&d->mutex);
126     MetaEngineSettingsContainer s(d->settings);
127 
128     return s;
129 }
130 
exifRotate() const131 bool MetaEngineSettings::exifRotate() const
132 {
133     return d->settings.exifRotate;
134 }
135 
setSettings(const MetaEngineSettingsContainer & settings)136 void MetaEngineSettings::setSettings(const MetaEngineSettingsContainer& settings)
137 {
138     MetaEngineSettingsContainer old = d->setSettings(settings);
139     emit signalMetaEngineSettingsChanged(settings, old);
140     emit signalSettingsChanged();
141     d->writeToConfig();
142 }
143 
readFromConfig()144 void MetaEngineSettings::readFromConfig()
145 {
146     MetaEngineSettingsContainer s   = d->readFromConfig();
147     MetaEngineSettingsContainer old = d->setSettings(s);
148     emit signalMetaEngineSettingsChanged(s, old);
149     emit signalSettingsChanged();
150 }
151 
152 } // namespace Digikam
153 
154 #include "moc_metaenginesettings.cpp"
155