src/settings/general/previewssettingspage.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "previewssettingspage.h"
  21
  22 #include "dolphin_generalsettings.h"
  23 #include "configurepreviewplugindialog.h"
  24 #include "settings/serviceitemdelegate.h"
  25 #include "settings/servicemodel.h"
  26
  27 #include <KIO/PreviewJob>
  28 #include <KLocalizedString>
  29 #include <KServiceTypeTrader>
  30
  31 #include <QHBoxLayout>
  32 #include <QLabel>
  33 #include <QListView>
  34 #include <QPainter>
  35 #include <QShowEvent>
  36 #include <QSortFilterProxyModel>
  37 #include <QSpinBox>
  38
  39 // default settings
  40 namespace {
  41     const int MaxRemotePreviewSize = 0; // 0 MB
  42 }
  43
  44 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  45     SettingsPageBase(parent),
  46     m_initialized(false),
  47     m_listView(nullptr),
  48     m_enabledPreviewPlugins(),
  49     m_remoteFileSizeBox(nullptr)
  50 {
  51     QVBoxLayout* topLayout = new QVBoxLayout(this);
  52
  53     QLabel* showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews in the view for:"), this);
  54
  55     m_listView = new QListView(this);
  56
  57     ServiceItemDelegate* delegate = new ServiceItemDelegate(m_listView, m_listView);
  58     connect(delegate, &ServiceItemDelegate::requestServiceConfiguration,
  59             this, &PreviewsSettingsPage::configureService);
  60
  61     ServiceModel* serviceModel = new ServiceModel(this);
  62     QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
  63     proxyModel->setSourceModel(serviceModel);
  64     proxyModel->setSortRole(Qt::DisplayRole);
  65     proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
  66
  67     m_listView->setModel(proxyModel);
  68     m_listView->setItemDelegate(delegate);
  69     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  70
  71     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  72
  73     m_remoteFileSizeBox = new QSpinBox(this);
  74     m_remoteFileSizeBox->setSingleStep(1);
  75     m_remoteFileSizeBox->setSuffix(QStringLiteral(" MB"));
  76     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  77
  78     QHBoxLayout* fileSizeBoxLayout = new QHBoxLayout();
  79     fileSizeBoxLayout->addWidget(remoteFileSizeLabel, 0, Qt::AlignRight);
  80     fileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  81
  82     topLayout->addWidget(showPreviewsLabel);
  83     topLayout->addWidget(m_listView);
  84     topLayout->addLayout(fileSizeBoxLayout);
  85
  86     loadSettings();
  87
  88     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
  89     connect(m_remoteFileSizeBox, QOverload<int>::of(&QSpinBox::valueChanged), this, &PreviewsSettingsPage::changed);
  90 }
  91
  92 PreviewsSettingsPage::~PreviewsSettingsPage()
  93 {
  94 }
  95
  96 void PreviewsSettingsPage::applySettings()
  97 {
  98     const QAbstractItemModel* model = m_listView->model();
  99     const int rowCount = model->rowCount();
 100     if (rowCount > 0) {
 101         m_enabledPreviewPlugins.clear();
 102         for (int i = 0; i < rowCount; ++i) {
 103             const QModelIndex index = model->index(i, 0);
 104             const bool checked = model->data(index, Qt::CheckStateRole).toBool();
 105             if (checked) {
 106                 const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
 107                 m_enabledPreviewPlugins.append(enabledPlugin);
 108             }
 109         }
 110     }
 111
 112     KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 113     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 114
 115     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 116     globalConfig.writeEntry("MaximumRemoteSize",
 117                             maximumRemoteSize,
 118                             KConfigBase::Normal | KConfigBase::Global);
 119     globalConfig.sync();
 120 }
 121
 122 void PreviewsSettingsPage::restoreDefaults()
 123 {
 124     m_remoteFileSizeBox->setValue(MaxRemotePreviewSize);
 125 }
 126
 127 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 128 {
 129     if (!event->spontaneous() && !m_initialized) {
 130         loadPreviewPlugins();
 131         m_initialized = true;
 132     }
 133     SettingsPageBase::showEvent(event);
 134 }
 135
 136 void PreviewsSettingsPage::configureService(const QModelIndex& index)
 137 {
 138     const QAbstractItemModel* model = index.model();
 139     const QString pluginName = model->data(index).toString();
 140     const QString desktopEntryName = model->data(index, ServiceModel::DesktopEntryNameRole).toString();
 141
 142     ConfigurePreviewPluginDialog* dialog = new ConfigurePreviewPluginDialog(pluginName, desktopEntryName, this);
 143     dialog->setAttribute(Qt::WA_DeleteOnClose);
 144     dialog->show();
 145 }
 146
 147 void PreviewsSettingsPage::loadPreviewPlugins()
 148 {
 149     QAbstractItemModel* model = m_listView->model();
 150
 151     const KService::List plugins = KServiceTypeTrader::self()->query(QStringLiteral("ThumbCreator"));
 152     foreach (const KService::Ptr& service, plugins) {
 153         const bool configurable = service->property(QStringLiteral("Configurable"), QVariant::Bool).toBool();
 154         const bool show = m_enabledPreviewPlugins.contains(service->desktopEntryName());
 155
 156         model->insertRow(0);
 157         const QModelIndex index = model->index(0, 0);
 158         model->setData(index, show, Qt::CheckStateRole);
 159         model->setData(index, configurable, ServiceModel::ConfigurableRole);
 160         model->setData(index, service->name(), Qt::DisplayRole);
 161         model->setData(index, service->desktopEntryName(), ServiceModel::DesktopEntryNameRole);
 162     }
 163
 164     model->sort(Qt::DisplayRole);
 165 }
 166
 167 void PreviewsSettingsPage::loadSettings()
 168 {
 169     const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 170     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
 171
 172     const qulonglong defaultRemotePreview = static_cast<qulonglong>(MaxRemotePreviewSize) * 1024 * 1024;
 173     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 174     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 175     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 176 }
 177