src/settings/general/previewssettingspage.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "previewssettingspage.h"
  21
  22 #include "dolphin_generalsettings.h"
  23
  24 #include <kconfiggroup.h>
  25 #include <kdialog.h>
  26 #include <kglobal.h>
  27 #include <klocale.h>
  28 #include <KNumInput>
  29 #include <kservicetypetrader.h>
  30 #include <kservice.h>
  31
  32 #include <settings/dolphinsettings.h>
  33
  34 #include <QCheckBox>
  35 #include <QGroupBox>
  36 #include <QLabel>
  37 #include <QListWidget>
  38 #include <QRadioButton>
  39 #include <QShowEvent>
  40 #include <QSlider>
  41 #include <QGridLayout>
  42
  43 // default settings
  44 namespace {
  45     const bool UseThumbnails = true;
  46     const int MaxLocalPreviewSize = 5;  // 5 MB
  47     const int MaxRemotePreviewSize = 0; // 0 MB
  48 }
  49
  50 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  51     SettingsPageBase(parent),
  52     m_initialized(false),
  53     m_previewPluginsList(0),
  54     m_enabledPreviewPlugins(),
  55     m_localFileSizeBox(0),
  56     m_remoteFileSizeBox(0)
  57 {
  58     QVBoxLayout* topLayout = new QVBoxLayout(this);
  59     topLayout->setSpacing(KDialog::spacingHint());
  60     topLayout->setMargin(KDialog::marginHint());
  61
  62     // Create group box "Show previews for:"
  63     QGroupBox* listBox = new QGroupBox(i18nc("@title:group", "Show previews for"), this);
  64
  65     m_previewPluginsList = new QListWidget(this);
  66     m_previewPluginsList->setSortingEnabled(true);
  67     m_previewPluginsList->setSelectionMode(QAbstractItemView::NoSelection);
  68     connect(m_previewPluginsList, SIGNAL(itemClicked(QListWidgetItem*)),
  69             this, SIGNAL(changed()));
  70
  71     QVBoxLayout* listBoxLayout = new QVBoxLayout(listBox);
  72     listBoxLayout->addWidget(m_previewPluginsList);
  73
  74     // Create group box "Don't create previews for"
  75     QGroupBox* fileSizeBox = new QGroupBox(i18nc("@title:group", "Do not create previews for"), this);
  76
  77     QLabel* localFileSizeLabel = new QLabel(i18nc("@label Don't create previews for: <Local files above:> XX MByte",
  78                                                   "Local files above:"), this);
  79
  80     m_localFileSizeBox = new KIntSpinBox(this);
  81     m_localFileSizeBox->setSingleStep(1);
  82     m_localFileSizeBox->setSuffix(QLatin1String(" MB"));
  83     m_localFileSizeBox->setRange(0, 9999); /* MB */
  84     connect(m_localFileSizeBox, SIGNAL(valueChanged(int)),
  85             this, SIGNAL(changed()));
  86
  87     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label Don't create previews for: <Remote files above:> XX MByte",
  88                                                    "Remote files above:"), this);
  89
  90     m_remoteFileSizeBox = new KIntSpinBox(this);
  91     m_remoteFileSizeBox->setSingleStep(1);
  92     m_remoteFileSizeBox->setSuffix(QLatin1String(" MB"));
  93     m_remoteFileSizeBox->setRange(0, 9999); /* MB */
  94     connect(m_remoteFileSizeBox, SIGNAL(valueChanged(int)),
  95             this, SIGNAL(changed()));
  96
  97     QGridLayout* fileSizeBoxLayout = new QGridLayout(fileSizeBox);
  98     fileSizeBoxLayout->addWidget(localFileSizeLabel, 0, 0, Qt::AlignRight);
  99     fileSizeBoxLayout->addWidget(m_localFileSizeBox, 0, 1);
 100     fileSizeBoxLayout->addWidget(remoteFileSizeLabel, 1, 0, Qt::AlignRight);
 101     fileSizeBoxLayout->addWidget(m_remoteFileSizeBox, 1, 1);
 102
 103     topLayout->addWidget(listBox);
 104     topLayout->addWidget(fileSizeBox);
 105
 106     loadSettings();
 107 }
 108
 109
 110 PreviewsSettingsPage::~PreviewsSettingsPage()
 111 {
 112 }
 113
 114 void PreviewsSettingsPage::applySettings()
 115 {
 116     m_enabledPreviewPlugins.clear();
 117     const int count = m_previewPluginsList->count();
 118     for (int i = 0; i < count; ++i) {
 119         const QListWidgetItem* item = m_previewPluginsList->item(i);
 120         if (item->checkState() == Qt::Checked) {
 121             const QString enabledPlugin = item->data(Qt::UserRole).toString();
 122             m_enabledPreviewPlugins.append(enabledPlugin);
 123         }
 124     }
 125
 126     KConfigGroup globalConfig(KGlobal::config(), QLatin1String("PreviewSettings"));
 127     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 128
 129     globalConfig.writeEntry("MaximumSize",
 130                             m_localFileSizeBox->value() * 1024 * 1024,
 131                             KConfigBase::Normal | KConfigBase::Global);
 132     globalConfig.writeEntry("MaximumRemoteSize",
 133                             m_remoteFileSizeBox->value() * 1024 * 1024,
 134                             KConfigBase::Normal | KConfigBase::Global);
 135     globalConfig.sync();
 136 }
 137
 138 void PreviewsSettingsPage::restoreDefaults()
 139 {
 140     m_localFileSizeBox->setValue(MaxLocalPreviewSize);
 141     m_remoteFileSizeBox->setValue(MaxRemotePreviewSize);
 142 }
 143
 144 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 145 {
 146     if (!event->spontaneous() && !m_initialized) {
 147         QMetaObject::invokeMethod(this, "loadPreviewPlugins", Qt::QueuedConnection);
 148         m_initialized = true;
 149     }
 150     SettingsPageBase::showEvent(event);
 151 }
 152
 153 void PreviewsSettingsPage::loadPreviewPlugins()
 154 {
 155     const KService::List plugins = KServiceTypeTrader::self()->query(QLatin1String("ThumbCreator"));
 156     foreach (const KSharedPtr<KService>& service, plugins) {
 157         QListWidgetItem* item = new QListWidgetItem(service->name(),
 158                                                     m_previewPluginsList);
 159         item->setData(Qt::UserRole, service->desktopEntryName());
 160         const bool show = m_enabledPreviewPlugins.contains(service->desktopEntryName());
 161         item->setCheckState(show ? Qt::Checked : Qt::Unchecked);
 162     }
 163 }
 164
 165 void PreviewsSettingsPage::loadSettings()
 166 {
 167     KConfigGroup globalConfig(KGlobal::config(), "PreviewSettings");
 168     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", QStringList()
 169                                                      << QLatin1String("directorythumbnail")
 170                                                      << QLatin1String("imagethumbnail")
 171                                                      << QLatin1String("jpegthumbnail"));
 172
 173     const int maxLocalByteSize = globalConfig.readEntry("MaximumSize", MaxLocalPreviewSize * 1024 * 1024);
 174     const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
 175     m_localFileSizeBox->setValue(maxLocalMByteSize);
 176
 177     const int maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", MaxRemotePreviewSize * 1024 * 1024);
 178     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 179     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 180 }
 181
 182 #include "previewssettingspage.moc"