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 #include <KServiceTypeTrader>
  18
  19 #include <QHBoxLayout>
  20 #include <QLabel>
  21 #include <QListView>
  22 #include <QPainter>
  23 #include <QScroller>
  24 #include <QShowEvent>
  25 #include <QSortFilterProxyModel>
  26 #include <QSpinBox>
  27
  28 // default settings
  29 namespace {
  30     const int DefaultMaxLocalPreviewSize = 0; // 0 MB
  31     const int DefaultMaxRemotePreviewSize = 0; // 0 MB
  32 }
  33
  34 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  35     SettingsPageBase(parent),
  36     m_initialized(false),
  37     m_listView(nullptr),
  38     m_enabledPreviewPlugins(),
  39     m_localFileSizeBox(nullptr),
  40     m_remoteFileSizeBox(nullptr)
  41 {
  42     QVBoxLayout* topLayout = new QVBoxLayout(this);
  43
  44     QLabel* showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews in the view for:"), this);
  45
  46     m_listView = new QListView(this);
  47     QScroller::grabGesture(m_listView->viewport(), QScroller::TouchGesture);
  48
  49 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
  50     ServiceItemDelegate* delegate = new ServiceItemDelegate(m_listView, m_listView);
  51     connect(delegate, &ServiceItemDelegate::requestServiceConfiguration,
  52             this, &PreviewsSettingsPage::configureService);
  53     m_listView->setItemDelegate(delegate);
  54 #endif
  55
  56     ServiceModel* serviceModel = new ServiceModel(this);
  57     QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
  58     proxyModel->setSourceModel(serviceModel);
  59     proxyModel->setSortRole(Qt::DisplayRole);
  60     proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
  61
  62     m_listView->setModel(proxyModel);
  63     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  64     m_listView->setUniformItemSizes(true);
  65
  66     QLabel* localFileSizeLabel = new QLabel(i18n("Skip previews for local files above:"), this);
  67
  68     m_localFileSizeBox = new QSpinBox(this);
  69     m_localFileSizeBox->setSingleStep(1);
  70     m_localFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  71     m_localFileSizeBox->setRange(0, 9999999); /* MB */
  72     m_localFileSizeBox->setSpecialValueText(i18n("No limit"));
  73
  74     QHBoxLayout* localFileSizeBoxLayout = new QHBoxLayout();
  75     localFileSizeBoxLayout->addWidget(localFileSizeLabel);
  76     localFileSizeBoxLayout->addStretch(0);
  77     localFileSizeBoxLayout->addWidget(m_localFileSizeBox);
  78
  79     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  80
  81     m_remoteFileSizeBox = new QSpinBox(this);
  82     m_remoteFileSizeBox->setSingleStep(1);
  83     m_remoteFileSizeBox->setSuffix(i18nc("Mebibytes; used as a suffix in a spinbox showing e.g. '3 MiB'", " MiB"));
  84     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  85     m_remoteFileSizeBox->setSpecialValueText(i18n("No previews"));
  86
  87     QHBoxLayout* remoteFileSizeBoxLayout = new QHBoxLayout();
  88     remoteFileSizeBoxLayout->addWidget(remoteFileSizeLabel);
  89     remoteFileSizeBoxLayout->addStretch(0);
  90     remoteFileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  91
  92     topLayout->addWidget(showPreviewsLabel);
  93     topLayout->addWidget(m_listView);
  94     topLayout->addLayout(localFileSizeBoxLayout);
  95     topLayout->addLayout(remoteFileSizeBoxLayout);
  96
  97     loadSettings();
  98
  99     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
 100     connect(m_localFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
 101     connect(m_remoteFileSizeBox, &QSpinBox::valueChanged, this, &PreviewsSettingsPage::changed);
 102 }
 103
 104 PreviewsSettingsPage::~PreviewsSettingsPage()
 105 {
 106 }
 107
 108 void PreviewsSettingsPage::applySettings()
 109 {
 110     const QAbstractItemModel* model = m_listView->model();
 111     const int rowCount = model->rowCount();
 112     if (rowCount > 0) {
 113         m_enabledPreviewPlugins.clear();
 114         for (int i = 0; i < rowCount; ++i) {
 115             const QModelIndex index = model->index(i, 0);
 116             const bool checked = model->data(index, Qt::CheckStateRole).toBool();
 117             if (checked) {
 118                 const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
 119                 m_enabledPreviewPlugins.append(enabledPlugin);
 120             }
 121         }
 122     }
 123
 124     KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 125     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 126
 127     if (!m_localFileSizeBox->value()) {
 128         globalConfig.deleteEntry("MaximumSize", KConfigBase::Normal | KConfigBase::Global);
 129     } else {
 130         const qulonglong maximumLocalSize = static_cast<qulonglong>(m_localFileSizeBox->value()) * 1024 * 1024;
 131         globalConfig.writeEntry("MaximumSize",
 132                                 maximumLocalSize,
 133                                 KConfigBase::Normal | KConfigBase::Global);
 134     }
 135
 136     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 137     globalConfig.writeEntry("MaximumRemoteSize",
 138                             maximumRemoteSize,
 139                             KConfigBase::Normal | KConfigBase::Global);
 140
 141     globalConfig.sync();
 142 }
 143
 144 void PreviewsSettingsPage::restoreDefaults()
 145 {
 146     m_localFileSizeBox->setValue(DefaultMaxLocalPreviewSize);
 147     m_remoteFileSizeBox->setValue(DefaultMaxRemotePreviewSize);
 148 }
 149
 150 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 151 {
 152     if (!event->spontaneous() && !m_initialized) {
 153         loadPreviewPlugins();
 154         m_initialized = true;
 155     }
 156     SettingsPageBase::showEvent(event);
 157 }
 158
 159 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
 160 void PreviewsSettingsPage::configureService(const QModelIndex& index)
 161 {
 162     const QAbstractItemModel* model = index.model();
 163     const QString pluginName = model->data(index).toString();
 164     const QString desktopEntryName = model->data(index, ServiceModel::DesktopEntryNameRole).toString();
 165
 166     ConfigurePreviewPluginDialog* dialog = new ConfigurePreviewPluginDialog(pluginName, desktopEntryName, this);
 167     dialog->setAttribute(Qt::WA_DeleteOnClose);
 168     dialog->show();
 169 }
 170 #endif
 171
 172 void PreviewsSettingsPage::loadPreviewPlugins()
 173 {
 174     QAbstractItemModel* model = m_listView->model();
 175
 176     const QVector<KPluginMetaData> plugins = KIO::PreviewJob::availableThumbnailerPlugins();
 177     for (const KPluginMetaData &plugin : plugins) {
 178         const bool show = m_enabledPreviewPlugins.contains(plugin.pluginId());
 179
 180         model->insertRow(0);
 181         const QModelIndex index = model->index(0, 0);
 182         model->setData(index, show, Qt::CheckStateRole);
 183         model->setData(index, plugin.name(), Qt::DisplayRole);
 184         model->setData(index, plugin.pluginId(), ServiceModel::DesktopEntryNameRole);
 185
 186 #if KIOWIDGETS_BUILD_DEPRECATED_SINCE(5, 87)
 187         const bool configurable = plugin.value(QStringLiteral("Configurable"), false);
 188         model->setData(index, configurable, ServiceModel::ConfigurableRole);
 189 #endif
 190     }
 191
 192     model->sort(Qt::DisplayRole);
 193 }
 194
 195 void PreviewsSettingsPage::loadSettings()
 196 {
 197     const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 198     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
 199
 200     const qulonglong defaultLocalPreview = static_cast<qulonglong>(DefaultMaxLocalPreviewSize) * 1024 * 1024;
 201     const qulonglong maxLocalByteSize = globalConfig.readEntry("MaximumSize", defaultLocalPreview);
 202     const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
 203     m_localFileSizeBox->setValue(maxLocalMByteSize);
 204
 205     const qulonglong defaultRemotePreview = static_cast<qulonglong>(DefaultMaxRemotePreviewSize) * 1024 * 1024;
 206     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 207     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 208     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 209 }