Display number of table rows in tab

* countChanged event
* applied in components

src/blackgui/models/atcstationlistmodel.cpp

@@ -92,21 +92,15 @@ namespace BlackGui
             if (station.getCallsign().isEmpty()) return;
             if (added)
             {
-                if (this->m_container.contains(&CAtcStation::getCallsign, station.getCallsign()))
-                {
-                    this->m_container.replaceIf(&CAtcStation::getCallsign, station.getCallsign(), station);
-                }
-                else
-                {
-                    this->insert(station);
-                }
+                bool c = this->m_container.contains(&CAtcStation::getCallsign, station.getCallsign());
+                if (!c) { this->insert(station); }
             }
             else
             {
                 beginRemoveRows(QModelIndex(), 0, 0);
-                this->m_container.removeIf(&CAtcStation::getCallsign, station.getCallsign());
+                this->removeIf(&CAtcStation::getCallsign, station.getCallsign());
                 endRemoveRows();
             }
         }
-    }
-}
+    }  // namespace
+} // namespace

src/blackgui/models/listmodelbase.cpp

@@ -127,27 +127,22 @@ namespace BlackGui
         template <typename ObjectType, typename ContainerType>
         int CListModelBase<ObjectType, ContainerType>::update(const ContainerType &container, bool sort)
         {
-            // KWB remove: qDebug() will be removed soon
-            qDebug() << "update" << this->objectName() << "size" << container.size() << "thread:" << QThread::currentThreadId();
-            QTime myTimer;
-
             // Keep sorting out of begin/end reset model
             ContainerType sortedContainer;
+            int oldSize = this->m_container.size();
             bool performSort = sort && container.size() > 1 && this->hasValidSortColumn();
             if (performSort)
             {
-                myTimer.start();
                 sortedContainer = this->sortContainerByColumn(container, this->getSortColumn(), this->m_sortOrder);
-                qDebug() << this->objectName() << "Sort performed ms:" << myTimer.restart() << "thread:" << QThread::currentThreadId();
             }
 
             this->beginResetModel();
             this->m_container = performSort ? sortedContainer : container;
             this->endResetModel();
 
-            // TODO: KWB remove
-            qDebug() << this->objectName() << "Reset performed ms:" << myTimer.restart() << "objects:" << this->m_container.size() << "thread:" << QThread::currentThreadId();
-            return this->m_container.size();
+            int newSize = this->m_container.size();
+            if (oldSize != newSize) {  rowCountChanged(newSize); }
+            return newSize;
         }
 
         /*
@@ -223,6 +218,7 @@ namespace BlackGui
             beginInsertRows(QModelIndex(), this->m_container.size(), this->m_container.size());
             this->m_container.push_back(object);
             endInsertRows();
+            emit rowCountChanged(this->m_container.size());
         }
 
         /*
@@ -234,6 +230,8 @@ namespace BlackGui
             beginInsertRows(QModelIndex(), 0, 0);
             this->m_container.insert(this->m_container.begin(), object);
             endInsertRows();
+            int newSize = this->m_container.size();
+            emit rowCountChanged(newSize);
         }
 
         /*
@@ -242,9 +240,12 @@ namespace BlackGui
         template <typename ObjectType, typename ContainerType>
         void CListModelBase<ObjectType, ContainerType>::remove(const ObjectType &object)
         {
+            int oldSize = this->m_container.size();
             beginRemoveRows(QModelIndex(), 0, 0);
             this->m_container.remove(object);
             endRemoveRows();
+            int newSize = this->m_container.size();
+            if (oldSize != newSize) { emit rowCountChanged(newSize); }
         }
 
         /*
@@ -252,9 +253,11 @@ namespace BlackGui
          */
         template <typename ObjectType, typename ContainerType> void CListModelBase<ObjectType, ContainerType>::clear()
         {
+            int oldSize = this->m_container.size();
             beginResetModel();
             this->m_container.clear();
             endResetModel();
+            if (oldSize > 0) { emit rowCountChanged(0);}
         }
 
         /*

src/blackgui/models/listmodelbase.h

@@ -83,6 +83,9 @@ namespace BlackGui
             //! Asynchronous update finished
             void asyncUpdateFinished();
 
+            //! Number of elements changed
+            void rowCountChanged(int count);
+
         protected slots:
             //! Helper method with template free signature
             //! \param variant container is transferred in variant
@@ -113,7 +116,6 @@ namespace BlackGui
             Qt::SortOrder m_sortOrder; //!< sort order (asc/desc)
         };
 
-
         /*!
          * List model
          */
@@ -182,6 +184,15 @@ namespace BlackGui
             //! Remove object
             virtual void remove(const ObjectType &object);
 
+            //! \copydoc ContainerBase::removeIf
+            template <class K0, class V0, class... KeysValues>
+            int removeIf(K0 k0, V0 v0, KeysValues... keysValues)
+            {
+                int c = m_container.removeIf(BlackMisc::Predicates::MemberEqual(k0, v0, keysValues...));
+                if (c > 0) { emit rowCountChanged(this->rowCount());}
+                return c;
+            }
+
             //! Clear the list
             virtual void clear();