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