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 <QSortFilterProxyModel>
  36 #include <QSpinBox>
  37
  38 // default settings
  39 namespace {
  40     const int MaxRemotePreviewSize = 0; // 0 MB
  41 }
  42
  43 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  44     SettingsPageBase(parent),
  45     m_initialized(false),
  46     m_listView(nullptr),
  47     m_enabledPreviewPlugins(),
  48     m_remoteFileSizeBox(nullptr)
  49 {
  50     QVBoxLayout* topLayout = new QVBoxLayout(this);
  51
  52     QLabel* showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews for:"), this);
  53
  54     m_listView = new QListView(this);
  55
  56     ServiceItemDelegate* delegate = new ServiceItemDelegate(m_listView, m_listView);
  57     connect(delegate, &ServiceItemDelegate::requestServiceConfiguration,
  58             this, &PreviewsSettingsPage::configureService);
  59
  60     ServiceModel* serviceModel = new ServiceModel(this);
  61     QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
  62     proxyModel->setSourceModel(serviceModel);
  63     proxyModel->setSortRole(Qt::DisplayRole);
  64
  65     m_listView->setModel(proxyModel);
  66     m_listView->setItemDelegate(delegate);
  67     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  68
  69     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  70
  71     m_remoteFileSizeBox = new QSpinBox(this);
  72     m_remoteFileSizeBox->setSingleStep(1);
  73     m_remoteFileSizeBox->setSuffix(QStringLiteral(" MB"));
  74     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  75
  76     QHBoxLayout* fileSizeBoxLayout = new QHBoxLayout();
  77     fileSizeBoxLayout->addWidget(remoteFileSizeLabel, 0, Qt::AlignRight);
  78     fileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  79
  80     topLayout->addWidget(showPreviewsLabel);
  81     topLayout->addWidget(m_listView);
  82     topLayout->addLayout(fileSizeBoxLayout);
  83
  84     loadSettings();
  85
  86     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
  87     connect(m_remoteFileSizeBox, static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged), this, &PreviewsSettingsPage::changed);
  88 }
  89
  90 PreviewsSettingsPage::~PreviewsSettingsPage()
  91 {
  92 }
  93
  94 void PreviewsSettingsPage::applySettings()
  95 {
  96     const QAbstractItemModel* model = m_listView->model();
  97     const int rowCount = model->rowCount();
  98     if (rowCount > 0) {
  99         m_enabledPreviewPlugins.clear();
 100         for (int i = 0; i < rowCount; ++i) {
 101             const QModelIndex index = model->index(i, 0);
 102             const bool checked = model->data(index, Qt::CheckStateRole).toBool();
 103             if (checked) {
 104                 const QString enabledPlugin = model->data(index, Qt::UserRole).toString();
 105                 m_enabledPreviewPlugins.append(enabledPlugin);
 106             }
 107         }
 108     }
 109
 110     KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 111     globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
 112
 113     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 114     globalConfig.writeEntry("MaximumRemoteSize",
 115                             maximumRemoteSize,
 116                             KConfigBase::Normal | KConfigBase::Global);
 117     globalConfig.sync();
 118 }
 119
 120 void PreviewsSettingsPage::restoreDefaults()
 121 {
 122     m_remoteFileSizeBox->setValue(MaxRemotePreviewSize);
 123 }
 124
 125 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 126 {
 127     if (!event->spontaneous() && !m_initialized) {
 128         loadPreviewPlugins();
 129         m_initialized = true;
 130     }
 131     SettingsPageBase::showEvent(event);
 132 }
 133
 134 void PreviewsSettingsPage::configureService(const QModelIndex& index)
 135 {
 136     const QAbstractItemModel* model = index.model();
 137     const QString pluginName = model->data(index).toString();
 138     const QString desktopEntryName = model->data(index, ServiceModel::DesktopEntryNameRole).toString();
 139
 140     ConfigurePreviewPluginDialog* dialog = new ConfigurePreviewPluginDialog(pluginName, desktopEntryName, this);
 141     dialog->setAttribute(Qt::WA_DeleteOnClose);
 142     dialog->show();
 143 }
 144
 145 void PreviewsSettingsPage::loadPreviewPlugins()
 146 {
 147     QAbstractItemModel* model = m_listView->model();
 148
 149     const KService::List plugins = KServiceTypeTrader::self()->query(QStringLiteral("ThumbCreator"));
 150     foreach (const KService::Ptr& service, plugins) {
 151         const bool configurable = service->property(QStringLiteral("Configurable"), QVariant::Bool).toBool();
 152         const bool show = m_enabledPreviewPlugins.contains(service->desktopEntryName());
 153
 154         model->insertRow(0);
 155         const QModelIndex index = model->index(0, 0);
 156         model->setData(index, show, Qt::CheckStateRole);
 157         model->setData(index, configurable, ServiceModel::ConfigurableRole);
 158         model->setData(index, service->name(), Qt::DisplayRole);
 159         model->setData(index, service->desktopEntryName(), ServiceModel::DesktopEntryNameRole);
 160     }
 161
 162     model->sort(Qt::DisplayRole);
 163 }
 164
 165 void PreviewsSettingsPage::loadSettings()
 166 {
 167     const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
 168     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
 169
 170     const qulonglong defaultRemotePreview = static_cast<qulonglong>(MaxRemotePreviewSize) * 1024 * 1024;
 171     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 172     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 173     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 174 }
 175