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