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