src/settings/interface/previewssettingspage.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2006 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "previewssettingspage.h"
   8
   9 #include "dolphin_generalsettings.h"
  10 #include "settings/servicemodel.h"
  11
  12 #include <KIO/PreviewJob>
  13 #include <KLocalizedString>
  14 #include <KPluginMetaData>
  15
  16 #include <QHBoxLayout>
  17 #include <QLabel>
  18 #include <QListView>
  19 #include <QScroller>
  20 #include <QShowEvent>
  21 #include <QSortFilterProxyModel>
  22 #include <QSpinBox>
  23
  24 // default settings
  25 namespace
  26 {
  27 const int DefaultMaxLocalPreviewSize = 0; // 0 MB
  28 const int DefaultMaxRemotePreviewSize = 0; // 0 MB
  29 }
  30
  31 PreviewsSettingsPage::PreviewsSettingsPage(QWidget *parent)
  32     : SettingsPageBase(parent)
  33     , m_initialized(false)
  34     , m_listView(nullptr)
  35     , m_enabledPreviewPlugins()
  36     , m_localFileSizeBox(nullptr)
  37     , m_remoteFileSizeBox(nullptr)
  38 {
  39     QVBoxLayout *topLayout = new QVBoxLayout(this);
  40
  41     QLabel *showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews in the view for:"), this);
  42
  43     m_listView = new QListView(this);
  44     QScroller::grabGesture(m_listView->viewport(), QScroller::TouchGesture);
  45
  46     ServiceModel *serviceModel = new ServiceModel(this);
  47     QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
  48     proxyModel->setSourceModel(serviceModel);
  49     proxyModel->setSortRole(Qt::DisplayRole);
  50     proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
  51
  52     m_listView->setModel(proxyModel);
  53     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  54     m_listView->setUniformItemSizes(true);
  55
  56     QLabel *localFileSizeLabel = new QLabel(i18n("Skip previews for local files above:"), this);
  57
  58     m_localFileSizeBox = new QSpinBox(this);
  59     m_localFileSizeBox->setSingleStep(1);
  60     m_localFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  61     m_localFileSizeBox->setRange(0, 9999999); /* MB */
  62     m_localFileSizeBox->setSpecialValueText(i18n("No limit"));
  63
  64     QHBoxLayout *localFileSizeBoxLayout = new QHBoxLayout();
  65     localFileSizeBoxLayout->addWidget(localFileSizeLabel);
  66     localFileSizeBoxLayout->addStretch(0);
  67     localFileSizeBoxLayout->addWidget(m_localFileSizeBox);
  68
  69     QLabel *remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  70
  71     m_remoteFileSizeBox = new QSpinBox(this);
  72     m_remoteFileSizeBox->setSingleStep(1);
  73     m_remoteFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  74     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  75     m_remoteFileSizeBox->setSpecialValueText(i18n("No previews"));
  76
  77     QHBoxLayout *remoteFileSizeBoxLayout = new QHBoxLayout();
  78     remoteFileSizeBoxLayout->addWidget(remoteFileSizeLabel);
  79     remoteFileSizeBoxLayout->addStretch(0);
  80     remoteFileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  81
  82     topLayout->addWidget(showPreviewsLabel);
  83     topLayout->addWidget(m_listView);
  84     topLayout->addLayout(localFileSizeBoxLayout);
  85     topLayout->addLayout(remoteFileSizeBoxLayout);
  86
  87     loadSettings();
  88
  89     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
  90     connect(m_localFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
  91     connect(m_remoteFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
  92 }
  93
  94 PreviewsSettingsPage::~PreviewsSettingsPage()
  95 {
  96 }
  97
  98 void PreviewsSettingsPage::applySettings()
  99 {
 100     const QAbstractItemModel *model = m_listView->model();
 101     const int rowCount = model->rowCount();
 102     if (rowCount > 0) {
 103         m_enabledPreviewPlugins.clear();
 104         for (int i = 0; i < rowCount; ++i) {
 105             const QModelIndex index = model->index(i, 0);
 106             const bool checked = model->data(index, Qt::CheckStateRole).value<Qt::CheckState>() == Qt::Checked;
 107             if (checked) {
 108                 const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
 109                 m_enabledPreviewPlugins.append(enabledPlugin);
 110             }
 111         }
 112     }
 113
 114     KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 115     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 116
 117     if (!m_localFileSizeBox->value()) {
 118         globalConfig.deleteEntry("MaximumSize", KConfigBase::Normal | KConfigBase::Global);
 119     } else {
 120         const qulonglong maximumLocalSize = static_cast<qulonglong>(m_localFileSizeBox->value()) * 1024 * 1024;
 121         globalConfig.writeEntry("MaximumSize", maximumLocalSize, KConfigBase::Normal | KConfigBase::Global);
 122     }
 123
 124     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 125     globalConfig.writeEntry("MaximumRemoteSize", maximumRemoteSize, KConfigBase::Normal | KConfigBase::Global);
 126
 127     globalConfig.sync();
 128 }
 129
 130 void PreviewsSettingsPage::restoreDefaults()
 131 {
 132     m_localFileSizeBox->setValue(DefaultMaxLocalPreviewSize);
 133     m_remoteFileSizeBox->setValue(DefaultMaxRemotePreviewSize);
 134 }
 135
 136 void PreviewsSettingsPage::showEvent(QShowEvent *event)
 137 {
 138     if (!event->spontaneous() && !m_initialized) {
 139         loadPreviewPlugins();
 140         m_initialized = true;
 141     }
 142     SettingsPageBase::showEvent(event);
 143 }
 144
 145 void PreviewsSettingsPage::loadPreviewPlugins()
 146 {
 147     QAbstractItemModel *model = m_listView->model();
 148
 149     const QVector<KPluginMetaData> plugins = KIO::PreviewJob::availableThumbnailerPlugins();
 150     for (const KPluginMetaData &plugin : plugins) {
 151         const bool show = m_enabledPreviewPlugins.contains(plugin.pluginId());
 152
 153         model->insertRow(0);
 154         const QModelIndex index = model->index(0, 0);
 155         model->setData(index, show ? Qt::Checked : Qt::Unchecked, Qt::CheckStateRole);
 156         model->setData(index, plugin.name(), Qt::DisplayRole);
 157         model->setData(index, plugin.pluginId(), ServiceModel::DesktopEntryNameRole);
 158     }
 159
 160     model->sort(Qt::DisplayRole);
 161 }
 162
 163 void PreviewsSettingsPage::loadSettings()
 164 {
 165     const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 166     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
 167
 168     const qulonglong defaultLocalPreview = static_cast<qulonglong>(DefaultMaxLocalPreviewSize) * 1024 * 1024;
 169     const qulonglong maxLocalByteSize = globalConfig.readEntry("MaximumSize", defaultLocalPreview);
 170     const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
 171     m_localFileSizeBox->setValue(maxLocalMByteSize);
 172
 173     const qulonglong defaultRemotePreview = static_cast<qulonglong>(DefaultMaxRemotePreviewSize) * 1024 * 1024;
 174     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 175     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 176     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 177 }
 178
 179 #include "moc_previewssettingspage.cpp"