diff --git a/plugins/standardoutputview/outputwidget.cpp b/plugins/standardoutputview/outputwidget.cpp
index b6c2fb43d..a3223c55b 100644
--- a/plugins/standardoutputview/outputwidget.cpp
+++ b/plugins/standardoutputview/outputwidget.cpp
@@ -1,678 +1,681 @@
 /* This file is part of KDevelop
  *
  * Copyright 2007 Andreas Pakulat <apaku@gmx.de>
  * Copyright 2007 Dukju Ahn <dukjuahn@gmail.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
  * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  * 02110-1301, USA.
  */
 
 #include "outputwidget.h"
 
 #include "standardoutputview.h"
 
 #include <QAction>
 #include <QApplication>
 #include <QClipboard>
 #include <QIcon>
 #include <QLineEdit>
 #include <QRegExp>
 #include <QSortFilterProxyModel>
 #include <QStackedWidget>
 #include <QTabWidget>
 #include <QToolButton>
 #include <QTreeView>
 #include <QVBoxLayout>
 #include <QWidgetAction>
 
 #include <KActionCollection>
 #include <KLocalizedString>
 #include <KStandardAction>
 #include <KToggleAction>
 
 #include <outputview/ioutputviewmodel.h>
 #include <util/focusedtreeview.h>
 
 #include "outputmodel.h"
 #include "toolviewdata.h"
 #include "debug.h"
 
 Q_LOGGING_CATEGORY(PLUGIN_STANDARDOUTPUTVIEW, "kdevplatform.plugins.standardoutputview")
 Q_DECLARE_METATYPE(QTreeView*)
 
 OutputWidget::OutputWidget(QWidget* parent, const ToolViewData* tvdata)
     : QWidget( parent )
     , tabwidget(nullptr)
     , stackwidget(nullptr)
     , data(tvdata)
     , m_closeButton(nullptr)
     , m_closeOthersAction(nullptr)
     , nextAction(nullptr)
     , previousAction(nullptr)
     , activateOnSelect(nullptr)
     , focusOnSelect(nullptr)
     , filterInput(nullptr)
     , filterAction(nullptr)
 {
     setWindowTitle(i18n("Output View"));
     setWindowIcon(tvdata->icon);
     QVBoxLayout* layout = new QVBoxLayout(this);
     layout->setMargin(0);
     if( data->type & KDevelop::IOutputView::MultipleView )
     {
         tabwidget = new QTabWidget(this);
         layout->addWidget( tabwidget );
         m_closeButton = new QToolButton( this );
         connect( m_closeButton, &QToolButton::clicked, this, &OutputWidget::closeActiveView );
         m_closeButton->setIcon( QIcon::fromTheme( QStringLiteral( "tab-close") ) );
         m_closeButton->setToolTip( i18n( "Close the currently active output view") );
         m_closeButton->setAutoRaise(true);
 
         m_closeOthersAction = new QAction( this );
         connect(m_closeOthersAction, &QAction::triggered, this, &OutputWidget::closeOtherViews);
         m_closeOthersAction->setIcon(QIcon::fromTheme(QStringLiteral("tab-close-other")));
         m_closeOthersAction->setToolTip( i18n( "Close all other output views" ) );
         m_closeOthersAction->setText( m_closeOthersAction->toolTip() );
         addAction(m_closeOthersAction);
 
         tabwidget->setCornerWidget(m_closeButton, Qt::TopRightCorner);
     } else if ( data->type == KDevelop::IOutputView::HistoryView )
     {
         stackwidget = new QStackedWidget( this );
         layout->addWidget( stackwidget );
 
         previousAction = new QAction( QIcon::fromTheme( QStringLiteral( "arrow-left" ) ), i18n("Previous Output"), this );
         connect(previousAction, &QAction::triggered, this, &OutputWidget::previousOutput);
         addAction(previousAction);
         nextAction = new QAction( QIcon::fromTheme( QStringLiteral( "arrow-right" ) ), i18n("Next Output"), this );
         connect(nextAction, &QAction::triggered, this, &OutputWidget::nextOutput);
         addAction(nextAction);
     }
 
     addAction(dynamic_cast<QAction*>(data->plugin->actionCollection()->action(QStringLiteral("prev_error"))));
     addAction(dynamic_cast<QAction*>(data->plugin->actionCollection()->action(QStringLiteral("next_error"))));
 
     activateOnSelect = new KToggleAction( QIcon(), i18n("Select activated Item"), this );
     activateOnSelect->setChecked( true );
     focusOnSelect = new KToggleAction( QIcon(), i18n("Focus when selecting Item"), this );
     focusOnSelect->setChecked( false );
     if( data->option & KDevelop::IOutputView::ShowItemsButton )
     {
         addAction(activateOnSelect);
         addAction(focusOnSelect);
     }
 
     QAction *separator = new QAction(this);
     separator->setSeparator(true);
     addAction(separator);
 
     QAction* action;
 
     action = new QAction(QIcon::fromTheme(QStringLiteral("go-first")), i18n("First Item"), this);
     connect(action, &QAction::triggered, this, &OutputWidget::selectFirstItem);
     addAction(action);
 
     action = new QAction(QIcon::fromTheme(QStringLiteral("go-previous")), i18n("Previous Item"), this);
     connect(action, &QAction::triggered, this, &OutputWidget::selectPreviousItem);
     addAction(action);
 
     action = new QAction(QIcon::fromTheme(QStringLiteral("go-next")), i18n("Next Item"), this);
     connect(action, &QAction::triggered, this, &OutputWidget::selectNextItem);
     addAction(action);
 
     action = new QAction(QIcon::fromTheme(QStringLiteral("go-last")), i18n("Last Item"), this);
     connect(action, &QAction::triggered, this, &OutputWidget::selectLastItem);
     addAction(action);
 
     QAction* selectAllAction = KStandardAction::selectAll(this, SLOT(selectAll()), this);
     selectAllAction->setShortcut(QKeySequence()); //FIXME: why does CTRL-A conflict with Katepart (while CTRL-Cbelow doesn't) ?
     selectAllAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
     addAction(selectAllAction);
 
     QAction* copyAction = KStandardAction::copy(this, SLOT(copySelection()), this);
     copyAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
     addAction(copyAction);
 
     if( data->option & KDevelop::IOutputView::AddFilterAction )
     {
         QAction *separator = new QAction(this);
         separator->setSeparator(true);
         addAction(separator);
 
         filterInput = new QLineEdit();
         filterInput->setMaximumWidth(150);
         filterInput->setMinimumWidth(100);
         filterInput->setPlaceholderText(i18n("Search..."));
         filterInput->setClearButtonEnabled(true);
         filterInput->setToolTip(i18n("Enter a wild card string to filter the output view"));
         filterAction = new QWidgetAction(this);
         filterAction->setDefaultWidget(filterInput);
         addAction(filterAction);
 
         connect(filterInput, &QLineEdit::textEdited,
                 this, &OutputWidget::outputFilter );
         if( data->type & KDevelop::IOutputView::MultipleView )
         {
             connect(tabwidget, &QTabWidget::currentChanged,
                     this, &OutputWidget::updateFilter);
         } else if ( data->type == KDevelop::IOutputView::HistoryView )
         {
             connect(stackwidget, &QStackedWidget::currentChanged,
                     this, &OutputWidget::updateFilter);
         }
     }
 
-    QAction *clearAction = new QAction("Clear");
-    connect(clearAction, &QAction::triggered, [=]{
-        auto view = qobject_cast<QAbstractItemView*>(currentWidget());
-        if( !view || !view->isVisible())
-            return;
-
-        KDevelop::OutputModel *outputModel = nullptr;
-        if ( QAbstractProxyModel* proxy = qobject_cast<QAbstractProxyModel*>(view->model())) {
-            outputModel = dynamic_cast<KDevelop::OutputModel*>(proxy->sourceModel());
-        } else {
-            outputModel = dynamic_cast<KDevelop::OutputModel*>(view->model());
-        }
-        outputModel->clear();
-    });
+    QAction *clearAction = new QAction(i18n("Clear"));
+    connect(clearAction, &QAction::triggered, this, &OutputWidget::clearModel);
 
     addAction(clearAction);
 
     addActions(data->actionList);
 
     connect( data, &ToolViewData::outputAdded,
              this, &OutputWidget::addOutput );
 
     connect( this, &OutputWidget::outputRemoved,
              data->plugin, &StandardOutputView::outputRemoved );
 
     foreach( int id, data->outputdata.keys() )
     {
         changeModel( id );
         changeDelegate( id );
     }
     enableActions();
 }
 
+void OutputWidget::clearModel()
+{
+    auto view = qobject_cast<QAbstractItemView*>(currentWidget());
+    if( !view || !view->isVisible())
+        return;
+
+    KDevelop::OutputModel *outputModel = nullptr;
+    if (auto proxy = qobject_cast<QAbstractProxyModel*>(view->model())) {
+        outputModel = qobject_cast<KDevelop::OutputModel*>(proxy->sourceModel());
+    } else {
+        outputModel = qobject_cast<KDevelop::OutputModel*>(view->model());
+    }
+    outputModel->clear();
+}
+
 void OutputWidget::addOutput( int id )
 {
     QTreeView* listview = createListView(id);
     setCurrentWidget( listview );
     connect( data->outputdata.value(id), &OutputData::modelChanged, this, &OutputWidget::changeModel);
     connect( data->outputdata.value(id), &OutputData::delegateChanged, this, &OutputWidget::changeDelegate);
 
     enableActions();
 }
 
 void OutputWidget::setCurrentWidget( QTreeView* view )
 {
     if( data->type & KDevelop::IOutputView::MultipleView )
     {
         tabwidget->setCurrentWidget( view );
     } else if( data->type & KDevelop::IOutputView::HistoryView )
     {
         stackwidget->setCurrentWidget( view );
     }
 }
 
 void OutputWidget::changeDelegate( int id )
 {
     if( data->outputdata.contains( id ) && views.contains( id ) ) {
         views.value(id)->setItemDelegate(data->outputdata.value(id)->delegate);
     } else {
         addOutput(id);
     }
 }
 
 void OutputWidget::changeModel( int id )
 {
     if( data->outputdata.contains( id ) && views.contains( id ) )
     {
         OutputData* od = data->outputdata.value(id);
         views.value( id )->setModel(od->model);
     }
     else
     {
         addOutput( id );
     }
 }
 
 void OutputWidget::removeOutput( int id )
 {
     if( data->outputdata.contains( id ) && views.contains( id ) )
     {
         QTreeView* view = views.value(id);
         if( data->type & KDevelop::IOutputView::MultipleView || data->type & KDevelop::IOutputView::HistoryView )
         {
             if( data->type & KDevelop::IOutputView::MultipleView )
             {
                 int idx = tabwidget->indexOf( view );
                 if( idx != -1 )
                 {
                     tabwidget->removeTab( idx );
                     if( proxyModels.contains( idx ) )
                     {
                         delete proxyModels.take( idx );
                         filters.remove( idx );
                     }
                 }
             } else
             {
                 int idx = stackwidget->indexOf( view );
                 if( idx != -1 && proxyModels.contains( idx ) )
                 {
                     delete proxyModels.take( idx );
                     filters.remove( idx );
                 }
                 stackwidget->removeWidget( view );
             }
             delete view;
         } else
         {
             views.value( id )->setModel( nullptr );
             views.value( id )->setItemDelegate( nullptr );
             if( proxyModels.contains( 0 ) ) {
                 delete proxyModels.take( 0 );
                 filters.remove( 0 );
             }
         }
         views.remove( id );
         emit outputRemoved( data->toolViewId, id );
     }
     enableActions();
 }
 
 void OutputWidget::closeActiveView()
 {
     QWidget* widget = tabwidget->currentWidget();
     if( !widget )
         return;
     foreach( int id, views.keys() )
     {
         if( views.value(id) == widget )
         {
             OutputData* od = data->outputdata.value(id);
             if( od->behaviour & KDevelop::IOutputView::AllowUserClose )
             {
                 data->plugin->removeOutput( id );
             }
         }
     }
     enableActions();
 }
 
 void OutputWidget::closeOtherViews()
 {
     QWidget* widget = tabwidget->currentWidget();
     if (!widget)
         return;
 
     foreach (int id, views.keys()) {
         if (views.value(id) == widget) {
             continue; // leave the active view open
         }
 
         OutputData* od = data->outputdata.value(id);
         if (od->behaviour & KDevelop::IOutputView::AllowUserClose) {
             data->plugin->removeOutput( id );
         }
     }
     enableActions();
 }
 
 QWidget* OutputWidget::currentWidget() const
 {
     QWidget* widget;
     if( data->type & KDevelop::IOutputView::MultipleView )
     {
         widget = tabwidget->currentWidget();
     } else if( data->type & KDevelop::IOutputView::HistoryView )
     {
         widget = stackwidget->currentWidget();
     } else
     {
         widget = views.begin().value();
     }
     return widget;
 }
 
 KDevelop::IOutputViewModel *OutputWidget::outputViewModel() const
 {
     auto view = qobject_cast<QAbstractItemView*>(currentWidget());
     if( !view || !view->isVisible())
         return nullptr;
 
     QAbstractItemModel *absmodel = view->model();
     KDevelop::IOutputViewModel *iface = dynamic_cast<KDevelop::IOutputViewModel*>(absmodel);
     if ( ! iface )
     {
         // try if it's a proxy model?
         if ( QAbstractProxyModel* proxy = qobject_cast<QAbstractProxyModel*>(absmodel) )
         {
             iface = dynamic_cast<KDevelop::IOutputViewModel*>(proxy->sourceModel());
         }
     }
     return iface;
 }
 
 void OutputWidget::eventuallyDoFocus()
 {
     QWidget* widget = currentWidget();
     if( focusOnSelect->isChecked() && !widget->hasFocus() ) {
         widget->setFocus( Qt::OtherFocusReason );
     }
 }
 
 QAbstractItemView *OutputWidget::outputView() const
 {
     return qobject_cast<QAbstractItemView*>(currentWidget());
 }
 
 void OutputWidget::activateIndex(const QModelIndex &index, QAbstractItemView *view, KDevelop::IOutputViewModel *iface)
 {
     if( ! index.isValid() )
         return;
     int tabIndex = currentOutputIndex();
     QModelIndex sourceIndex = index;
     QModelIndex viewIndex = index;
     if( QAbstractProxyModel* proxy = proxyModels.value(tabIndex) ) {
         if ( index.model() == proxy ) {
             // index is from the proxy, map it to the source
             sourceIndex = proxy->mapToSource(index);
         } else if (proxy == view->model()) {
             // index is from the source, map it to the proxy
             viewIndex = proxy->mapFromSource(index);
         }
     }
 
     view->setCurrentIndex( viewIndex );
     view->scrollTo( viewIndex );
 
     if( activateOnSelect->isChecked() ) {
         iface->activate( sourceIndex );
     }
 }
 
 void OutputWidget::selectFirstItem()
 {
     selectItem(First);
 }
 
 void OutputWidget::selectNextItem()
 {
     selectItem(Next);
 }
 
 void OutputWidget::selectPreviousItem()
 {
     selectItem(Previous);
 }
 
 void OutputWidget::selectLastItem()
 {
     selectItem(Last);
 }
 
 void OutputWidget::selectItem(SelectionMode selectionMode)
 {
     auto view = outputView();
     auto iface = outputViewModel();
     if ( ! view || ! iface )
         return;
     eventuallyDoFocus();
 
     auto index = view->currentIndex();
 
     if (QAbstractProxyModel* proxy = proxyModels.value(currentOutputIndex())) {
         if ( index.model() == proxy ) {
             // index is from the proxy, map it to the source
             index = proxy->mapToSource(index);
         }
     }
 
     QModelIndex newIndex;
     switch (selectionMode) {
         case First:
             newIndex = iface->firstHighlightIndex();
             break;
         case Next:
             newIndex = iface->nextHighlightIndex( index );
             break;
         case Previous:
             newIndex = iface->previousHighlightIndex( index );
             break;
         case Last:
             newIndex = iface->lastHighlightIndex();
             break;
     }
 
     qCDebug(PLUGIN_STANDARDOUTPUTVIEW) << "old:" << index << "- new:" << newIndex;
     activateIndex(newIndex, view, iface);
 }
 
 void OutputWidget::activate(const QModelIndex& index)
 {
     auto iface = outputViewModel();
     auto view = outputView();
     if( ! view || ! iface )
         return;
     activateIndex(index, view, iface);
 }
 
 QTreeView* OutputWidget::createListView(int id)
 {
     auto createHelper = [&]() -> QTreeView* {
         KDevelop::FocusedTreeView* listview = new KDevelop::FocusedTreeView(this);
         listview->setEditTriggers( QAbstractItemView::NoEditTriggers );
         listview->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn); //Always enable the scrollbar, so it doesn't flash around
         listview->setHeaderHidden(true);
         listview->setUniformRowHeights(true);
         listview->setRootIsDecorated(false);
         listview->setSelectionMode( QAbstractItemView::ContiguousSelection );
 
         if (data->outputdata.value(id)->behaviour & KDevelop::IOutputView::AutoScroll) {
             listview->setAutoScrollAtEnd(true);
         }
 
         connect(listview, &QTreeView::activated, this, &OutputWidget::activate);
         connect(listview, &QTreeView::clicked, this, &OutputWidget::activate);
 
         return listview;
     };
 
     QTreeView* listview = nullptr;
     if( !views.contains(id) )
     {
         bool newView = true;
 
         if( data->type & KDevelop::IOutputView::MultipleView || data->type & KDevelop::IOutputView::HistoryView )
         {
             qCDebug(PLUGIN_STANDARDOUTPUTVIEW) << "creating listview";
             listview = createHelper();
 
             if( data->type & KDevelop::IOutputView::MultipleView )
             {
                 tabwidget->addTab( listview, data->outputdata.value(id)->title );
             } else
             {
                 stackwidget->addWidget( listview );
                 stackwidget->setCurrentWidget( listview );
             }
         } else
         {
             if( views.isEmpty() )
             {
                 listview = createHelper();
 
                 layout()->addWidget( listview );
             } else
             {
                 listview = views.begin().value();
                 newView = false;
             }
         }
         views[id] = listview;
 
         changeModel( id );
         changeDelegate( id );
 
         if (newView)
             listview->scrollToBottom();
     } else
     {
         listview = views.value(id);
     }
     enableActions();
     return listview;
 }
 
 void OutputWidget::raiseOutput(int id)
 {
     if( views.contains(id) )
     {
         if( data->type & KDevelop::IOutputView::MultipleView )
         {
             int idx = tabwidget->indexOf( views.value(id) );
             if( idx >= 0 )
             {
                 tabwidget->setCurrentIndex( idx );
             }
         } else if( data->type & KDevelop::IOutputView::HistoryView )
         {
             int idx = stackwidget->indexOf( views.value(id) );
             if( idx >= 0 )
             {
                 stackwidget->setCurrentIndex( idx );
             }
         }
     }
     enableActions();
 }
 
 void OutputWidget::nextOutput()
 {
     if( stackwidget && stackwidget->currentIndex() < stackwidget->count()-1 )
     {
         stackwidget->setCurrentIndex( stackwidget->currentIndex()+1 );
     }
     enableActions();
 }
 
 void OutputWidget::previousOutput()
 {
     if( stackwidget && stackwidget->currentIndex() > 0 )
     {
         stackwidget->setCurrentIndex( stackwidget->currentIndex()-1 );
     }
     enableActions();
 }
 
 void OutputWidget::enableActions()
 {
     if( data->type == KDevelop::IOutputView::HistoryView )
     {
         Q_ASSERT(stackwidget);
         Q_ASSERT(nextAction);
         Q_ASSERT(previousAction);
         previousAction->setEnabled( ( stackwidget->currentIndex() > 0 ) );
         nextAction->setEnabled( ( stackwidget->currentIndex() < stackwidget->count() - 1 ) );
     }
 }
 
 void OutputWidget::scrollToIndex( const QModelIndex& idx )
 {
     QWidget* w = currentWidget();
     if( !w )
         return;
     QAbstractItemView *view = dynamic_cast<QAbstractItemView*>(w);
     view->scrollTo( idx );
 }
 
 void OutputWidget::copySelection()
 {
     QWidget* widget = currentWidget();
     if( !widget )
         return;
     QAbstractItemView *view = dynamic_cast<QAbstractItemView*>(widget);
     if( !view )
         return;
 
     QClipboard *cb = QApplication::clipboard();
     QModelIndexList indexes = view->selectionModel()->selectedRows();
     QString content;
     Q_FOREACH( const QModelIndex& index, indexes) {
       content += index.data().toString() + '\n';
     }
     cb->setText(content);
 }
 
 void OutputWidget::selectAll()
 {
     if (QAbstractItemView *view = qobject_cast<QAbstractItemView*>(currentWidget()))
         view->selectAll();
 }
 
 int OutputWidget::currentOutputIndex()
 {
     int index = 0;
     if( data->type & KDevelop::IOutputView::MultipleView )
     {
         index = tabwidget->currentIndex();
     } else if( data->type & KDevelop::IOutputView::HistoryView )
     {
         index = stackwidget->currentIndex();
     }
     return index;
 }
 
 void OutputWidget::outputFilter(const QString& filter)
 {
     QAbstractItemView *view = qobject_cast<QAbstractItemView*>(currentWidget());
     if( !view )
         return;
     int index = currentOutputIndex();
     auto proxyModel = qobject_cast<QSortFilterProxyModel*>(view->model());
     if( !proxyModel )
     {
         proxyModel = new QSortFilterProxyModel(view->model());
         proxyModel->setDynamicSortFilter(true);
         proxyModel->setSourceModel(view->model());
         proxyModels.insert(index, proxyModel);
         view->setModel(proxyModel);
     }
     QRegExp regExp(filter, Qt::CaseInsensitive);
     proxyModel->setFilterRegExp(regExp);
     filters[index] = filter;
 }
 
 void OutputWidget::updateFilter(int index)
 {
     if(filters.contains(index))
     {
         filterInput->setText(filters[index]);
     } else
     {
         filterInput->clear();
     }
 }
 
 void OutputWidget::setTitle(int outputId, const QString& title)
 {
     if( data->type & KDevelop::IOutputView::MultipleView ) {
         tabwidget->setTabText(outputId - 1, title);
     }
 }
 
diff --git a/plugins/standardoutputview/outputwidget.h b/plugins/standardoutputview/outputwidget.h
index dee34afe5..2428154c0 100644
--- a/plugins/standardoutputview/outputwidget.h
+++ b/plugins/standardoutputview/outputwidget.h
@@ -1,119 +1,120 @@
 /* This file is part of KDevelop
  *
  * Copyright 2007 Andreas Pakulat <apaku@gmx.de>
  * Copyright 2007 Dukju Ahn <dukjuahn@gmail.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
  * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  * 02110-1301, USA.
  */
 
 #ifndef KDEVPLATFORM_PLUGIN_OUTPUTWIDGET_H
 #define KDEVPLATFORM_PLUGIN_OUTPUTWIDGET_H
 
 #include <QMap>
 #include <QWidget>
 
 #include <interfaces/itoolviewactionlistener.h>
 #include <outputview/ioutputviewmodel.h>
 #include <outputview/ioutputview.h>
 
 class KToggleAction;
 class StandardOutputViewTest;
 class QAction;
 class QAbstractItemView;
 class QLineEdit;
 class QModelIndex;
 class QSortFilterProxyModel;
 class QStackedWidget;
 class QString;
 class QTabWidget;
 class QToolButton;
 class QTreeView;
 class QWidgetAction;
 class ToolViewData;
 
 class OutputWidget : public QWidget, public KDevelop::IToolViewActionListener
 {
     Q_OBJECT
     Q_INTERFACES(KDevelop::IToolViewActionListener)
 
     friend class StandardOutputViewTest;
 
 public:
     OutputWidget(QWidget* parent, const ToolViewData* data);
     void removeOutput( int id );
     void raiseOutput( int id );
 public Q_SLOTS:
     void addOutput( int id );
     void changeModel( int id );
     void changeDelegate( int id );
     void closeActiveView();
     void closeOtherViews();
     void selectFirstItem();
     void selectNextItem() override;
     void selectPreviousItem() override;
     void selectLastItem();
     void activate(const QModelIndex&);
     void scrollToIndex( const QModelIndex& );
     void setTitle(int outputId, const QString& title);
 
 Q_SIGNALS:
     void outputRemoved( int, int );
 
 private slots:
     void nextOutput();
     void previousOutput();
     void copySelection();
     void selectAll();
     void outputFilter(const QString& filter);
     void updateFilter(int index);
+    void clearModel();
 
 private:
     enum SelectionMode {
         Last,
         Next,
         Previous,
         First
     };
     void selectItem(SelectionMode selectionMode);
 
     QTreeView* createListView(int id);
     void setCurrentWidget( QTreeView* view );
     QWidget* currentWidget() const;
     void enableActions();
     KDevelop::IOutputViewModel* outputViewModel() const;
     QAbstractItemView* outputView() const;
     void activateIndex(const QModelIndex& index, QAbstractItemView* view, KDevelop::IOutputViewModel* iface);
     void eventuallyDoFocus();
     int currentOutputIndex();
 
     QMap<int, QTreeView*> views;
     QMap<int, QSortFilterProxyModel*> proxyModels;
     QMap<int, QString> filters;
     QTabWidget* tabwidget;
     QStackedWidget* stackwidget;
     const ToolViewData* data;
     QToolButton* m_closeButton;
     QAction* m_closeOthersAction;
     QAction* nextAction;
     QAction* previousAction;
     KToggleAction* activateOnSelect;
     KToggleAction* focusOnSelect;
     QLineEdit *filterInput;
     QWidgetAction* filterAction;
 };
 
 #endif