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
  25 #include <KConfigGroup>
  26 #include <KLocalizedString>
  27 #include <KServiceTypeTrader>
  28 #include <KService>
  29
  30 #include <settings/serviceitemdelegate.h>
  31 #include <settings/servicemodel.h>
  32
  33 #include <QCheckBox>
  34 #include <QGroupBox>
  35 #include <QHBoxLayout>
  36 #include <QLabel>
  37 #include <QListView>
  38 #include <QPainter>
  39 #include <QScrollBar>
  40 #include <QShowEvent>
  41 #include <QSlider>
  42 #include <QSpinBox>
  43 #include <QSortFilterProxyModel>
  44 #include <QVBoxLayout>
  45
  46 // default settings
  47 namespace {
  48     const int MaxRemotePreviewSize = 0; // 0 MB
  49 }
  50
  51 PreviewsSettingsPage::PreviewsSettingsPage(QWidget* parent) :
  52     SettingsPageBase(parent),
  53     m_initialized(false),
  54     m_listView(0),
  55     m_enabledPreviewPlugins(),
  56     m_remoteFileSizeBox(0)
  57 {
  58     QVBoxLayout* topLayout = new QVBoxLayout(this);
  59
  60     QLabel* showPreviewsLabel = new QLabel(i18nc("@title:group", "Show previews for:"), this);
  61
  62     m_listView = new QListView(this);
  63
  64     ServiceItemDelegate* delegate = new ServiceItemDelegate(m_listView, m_listView);
  65     connect(delegate, &ServiceItemDelegate::requestServiceConfiguration,
  66             this, &PreviewsSettingsPage::configureService);
  67
  68     ServiceModel* serviceModel = new ServiceModel(this);
  69     QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
  70     proxyModel->setSourceModel(serviceModel);
  71     proxyModel->setSortRole(Qt::DisplayRole);
  72
  73     m_listView->setModel(proxyModel);
  74     m_listView->setItemDelegate(delegate);
  75     m_listView->setVerticalScrollMode(QListView::ScrollPerPixel);
  76
  77     QLabel* remoteFileSizeLabel = new QLabel(i18nc("@label", "Skip previews for remote files above:"), this);
  78
  79     m_remoteFileSizeBox = new QSpinBox(this);
  80     m_remoteFileSizeBox->setSingleStep(1);
  81     m_remoteFileSizeBox->setSuffix(QStringLiteral(" MB"));
  82     m_remoteFileSizeBox->setRange(0, 9999999); /* MB */
  83
  84     QHBoxLayout* fileSizeBoxLayout = new QHBoxLayout();
  85     fileSizeBoxLayout->addWidget(remoteFileSizeLabel, 0, Qt::AlignRight);
  86     fileSizeBoxLayout->addWidget(m_remoteFileSizeBox);
  87
  88     topLayout->addWidget(showPreviewsLabel);
  89     topLayout->addWidget(m_listView);
  90     topLayout->addLayout(fileSizeBoxLayout);
  91
  92     loadSettings();
  93
  94     connect(m_listView, &QListView::clicked, this, &PreviewsSettingsPage::changed);
  95     connect(m_remoteFileSizeBox, static_cast<void(QSpinBox::*)(int)>(&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     const qulonglong maximumRemoteSize = static_cast<qulonglong>(m_remoteFileSizeBox->value()) * 1024 * 1024;
 122     globalConfig.writeEntry("MaximumRemoteSize",
 123                             maximumRemoteSize,
 124                             KConfigBase::Normal | KConfigBase::Global);
 125     globalConfig.sync();
 126 }
 127
 128 void PreviewsSettingsPage::restoreDefaults()
 129 {
 130     m_remoteFileSizeBox->setValue(MaxRemotePreviewSize);
 131 }
 132
 133 void PreviewsSettingsPage::showEvent(QShowEvent* event)
 134 {
 135     if (!event->spontaneous() && !m_initialized) {
 136         loadPreviewPlugins();
 137         m_initialized = true;
 138     }
 139     SettingsPageBase::showEvent(event);
 140 }
 141
 142 void PreviewsSettingsPage::configureService(const QModelIndex& index)
 143 {
 144     const QAbstractItemModel* model = index.model();
 145     const QString pluginName = model->data(index).toString();
 146     const QString desktopEntryName = model->data(index, ServiceModel::DesktopEntryNameRole).toString();
 147
 148     ConfigurePreviewPluginDialog* dialog = new ConfigurePreviewPluginDialog(pluginName, desktopEntryName, this);
 149     dialog->setAttribute(Qt::WA_DeleteOnClose);
 150     dialog->show();
 151 }
 152
 153 void PreviewsSettingsPage::loadPreviewPlugins()
 154 {
 155     QAbstractItemModel* model = m_listView->model();
 156
 157     const KService::List plugins = KServiceTypeTrader::self()->query(QStringLiteral("ThumbCreator"));
 158     foreach (const KService::Ptr& service, plugins) {
 159         const bool configurable = service->property(QStringLiteral("Configurable"), QVariant::Bool).toBool();
 160         const bool show = m_enabledPreviewPlugins.contains(service->desktopEntryName());
 161
 162         model->insertRow(0);
 163         const QModelIndex index = model->index(0, 0);
 164         model->setData(index, show, Qt::CheckStateRole);
 165         model->setData(index, configurable, ServiceModel::ConfigurableRole);
 166         model->setData(index, service->name(), Qt::DisplayRole);
 167         model->setData(index, service->desktopEntryName(), ServiceModel::DesktopEntryNameRole);
 168     }
 169
 170     model->sort(Qt::DisplayRole);
 171 }
 172
 173 void PreviewsSettingsPage::loadSettings()
 174 {
 175     KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
 176     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", QStringList()
 177                                                      << QStringLiteral("directorythumbnail")
 178                                                      << QStringLiteral("imagethumbnail")
 179                                                      << QStringLiteral("jpegthumbnail"));
 180
 181     const qulonglong defaultRemotePreview = static_cast<qulonglong>(MaxRemotePreviewSize) * 1024 * 1024;
 182     const qulonglong maxRemoteByteSize = globalConfig.readEntry("MaximumRemoteSize", defaultRemotePreview);
 183     const int maxRemoteMByteSize = maxRemoteByteSize / (1024 * 1024);
 184     m_remoteFileSizeBox->setValue(maxRemoteMByteSize);
 185 }
 186