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