src/settings/general/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 "configurepreviewplugindialog.h"
  11 #include "settings/serviceitemdelegate.h"
  12 #include "settings/servicemodel.h"
  13
  14 #include <KIO/PreviewJob>
  15 #include <KLocalizedString>
  16 #include <KPluginMetaData>
  17
  18 #include <QHBoxLayout>
  19 #include <QLabel>
  20 #include <QListView>
  21 #include <QPainter>
  22 #include <QScroller>
  23 #include <QShowEvent>
  24 #include <QSortFilterProxyModel>
  25 #include <QSpinBox>
  26
  27 // default settings
  28 namespace {
  29     const int DefaultMaxLocalPreviewSize = 0; // 0 MB
  30     const int DefaultMaxRemotePreviewSize = 0; // 0 MB
  31 }
  32
  33 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  34     SettingsPageBase(parent),
  35     m_initialized(false),
  36     m_listView(nullptr),
  37     m_enabledPreviewPlugins(),
  38     m_localFileSizeBox(nullptr),
  39     m_remoteFileSizeBox(nullptr)
  40 {
  41     QVBoxLayout* topLayout = new QVBoxLayout(this);
  42
  43     QLabel* showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews in the view for:"), this);
  44
  45     m_listView = new QListView(this);
  46     QScroller::grabGesture(m_listView->viewport(), QScroller::TouchGesture);
  47
  48 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
  49     ServiceItemDelegate* delegate = new ServiceItemDelegate(m_listView, m_listView);
  50     connect(delegate, &ServiceItemDelegate::requestServiceConfiguration,
  51             this, &PreviewsSettingsPage::configureService);
  52     m_listView->setItemDelegate(delegate);
  53 #endif
  54
  55     ServiceModel* serviceModel = new ServiceModel(this);
  56     QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
  57     proxyModel->setSourceModel(serviceModel);
  58     proxyModel->setSortRole(Qt::DisplayRole);
  59     proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
  60
  61     m_listView->setModel(proxyModel);
  62     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  63     m_listView->setUniformItemSizes(true);
  64
  65     QLabel* localFileSizeLabel = new QLabel(i18n("Skip previews for local files above:"), this);
  66
  67     m_localFileSizeBox = new QSpinBox(this);
  68     m_localFileSizeBox->setSingleStep(1);
  69     m_localFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  70     m_localFileSizeBox->setRange(0, 9999999); /* MB */
  71     m_localFileSizeBox->setSpecialValueText(i18n("No limit"));
  72
  73     QHBoxLayout* localFileSizeBoxLayout = new QHBoxLayout();
  74     localFileSizeBoxLayout->addWidget(localFileSizeLabel);
  75     localFileSizeBoxLayout->addStretch(0);
  76     localFileSizeBoxLayout->addWidget(m_localFileSizeBox);
  77
  78     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  79
  80     m_remoteFileSizeBox = new QSpinBox(this);
  81     m_remoteFileSizeBox->setSingleStep(1);
  82     m_remoteFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  83     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  84     m_remoteFileSizeBox->setSpecialValueText(i18n("No previews"));
  85
  86     QHBoxLayout* remoteFileSizeBoxLayout = new QHBoxLayout();
  87     remoteFileSizeBoxLayout->addWidget(remoteFileSizeLabel);
  88     remoteFileSizeBoxLayout->addStretch(0);
  89     remoteFileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  90
  91     topLayout->addWidget(showPreviewsLabel);
  92     topLayout->addWidget(m_listView);
  93     topLayout->addLayout(localFileSizeBoxLayout);
  94     topLayout->addLayout(remoteFileSizeBoxLayout);
  95
  96     loadSettings();
  97
  98     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
  99     connect(m_localFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
 100     connect(m_remoteFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
 101 }
 102
 103 PreviewsSettingsPage::~PreviewsSettingsPage()
 104 {
 105 }
 106
 107 void PreviewsSettingsPage::applySettings()
 108 {
 109     const QAbstractItemModel* model = m_listView->model();
 110     const int rowCount = model->rowCount();
 111     if (rowCount > 0) {
 112         m_enabledPreviewPlugins.clear();
 113         for (int i = 0; i < rowCount; ++i) {
 114             const QModelIndex index = model->index(i, 0);
 115             const bool checked = model->data(index, Qt::CheckStateRole).toBool();
 116             if (checked) {
 117                 const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
 118                 m_enabledPreviewPlugins.append(enabledPlugin);
 119             }
 120         }
 121     }
 122
 123     KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 124     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 125
 126     if (!m_localFileSizeBox->value()) {
 127         globalConfig.deleteEntry("MaximumSize", KConfigBase::Normal | KConfigBase::Global);
 128     } else {
 129         const qulonglong maximumLocalSize = static_cast<qulonglong>(m_localFileSizeBox->value()) * 1024 * 1024;
 130         globalConfig.writeEntry("MaximumSize",
 131                                 maximumLocalSize,
 132                                 KConfigBase::Normal | KConfigBase::Global);
 133     }
 134
 135     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 136     globalConfig.writeEntry("MaximumRemoteSize",
 137                             maximumRemoteSize,
 138                             KConfigBase::Normal | KConfigBase::Global);
 139
 140     globalConfig.sync();
 141 }
 142
 143 void PreviewsSettingsPage::restoreDefaults()
 144 {
 145     m_localFileSizeBox->setValue(DefaultMaxLocalPreviewSize);
 146     m_remoteFileSizeBox->setValue(DefaultMaxRemotePreviewSize);
 147 }
 148
 149 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 150 {
 151     if (!event->spontaneous() && !m_initialized) {
 152         loadPreviewPlugins();
 153         m_initialized = true;
 154     }
 155     SettingsPageBase::showEvent(event);
 156 }
 157
 158 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
 159 void PreviewsSettingsPage::configureService(const QModelIndex& index)
 160 {
 161     const QAbstractItemModel* model = index.model();
 162     const QString pluginName = model->data(index).toString();
 163     const QString desktopEntryName = model->data(index, ServiceModel::DesktopEntryNameRole).toString();
 164
 165     ConfigurePreviewPluginDialog* dialog = new ConfigurePreviewPluginDialog(pluginName, desktopEntryName, this);
 166     dialog->setAttribute(Qt::WA_DeleteOnClose);
 167     dialog->show();
 168 }
 169 #endif
 170
 171 void PreviewsSettingsPage::loadPreviewPlugins()
 172 {
 173     QAbstractItemModel* model = m_listView->model();
 174
 175     const QVector<KPluginMetaData> plugins = KIO::PreviewJob::availableThumbnailerPlugins();
 176     for (const KPluginMetaData &plugin : plugins) {
 177         const bool show = m_enabledPreviewPlugins.contains(plugin.pluginId());
 178
 179         model->insertRow(0);
 180         const QModelIndex index = model->index(0, 0);
 181         model->setData(index, show, Qt::CheckStateRole);
 182         model->setData(index, plugin.name(), Qt::DisplayRole);
 183         model->setData(index, plugin.pluginId(), ServiceModel::DesktopEntryNameRole);
 184
 185 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
 186         const bool configurable = plugin.value(QStringLiteral("Configurable"), false);
 187         model->setData(index, configurable, ServiceModel::ConfigurableRole);
 188 #endif
 189     }
 190
 191     model->sort(Qt::DisplayRole);
 192 }
 193
 194 void PreviewsSettingsPage::loadSettings()
 195 {
 196     const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 197     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
 198
 199     const qulonglong defaultLocalPreview = static_cast<qulonglong>(DefaultMaxLocalPreviewSize) * 1024 * 1024;
 200     const qulonglong maxLocalByteSize = globalConfig.readEntry("MaximumSize", defaultLocalPreview);
 201     const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
 202     m_localFileSizeBox->setValue(maxLocalMByteSize);
 203
 204     const qulonglong defaultRemotePreview = static_cast<qulonglong>(DefaultMaxRemotePreviewSize) * 1024 * 1024;
 205     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 206     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 207     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 208 }