Added a ModelSummary class to make the overview over the model content accessible via QProperty system & a SummaryWidget to show this information. Only property rowCount as a proof of concept. Other properties will follow.

libs/BeetRoundCore/genericcore.cpp

@@ -17,11 +17,10 @@
 #include "data/settingshandler.h"
 #include "model/generalsortfiltermodel.h"
 #include "model/metadata.h"
+#include "model/modelsummary.h"
 #include "model/tablemodel.h"
 #include "network/servercommunicator.h"
 
-using namespace std;
-
 GenericCore::GenericCore() {
   qDebug() << "Creating core...";
 
@@ -97,6 +96,8 @@ std::shared_ptr<GeneralSortFilterModel> GenericCore::getSortFilterModel() const
   return m_sortFilterModel;
 }
 
+shared_ptr<ModelSummary> GenericCore::getModelSummary() const { return m_modelSummary; }
+
 /**
  * Save items to default file (in standard location).
  * @brief GenericCore::saveItems Saves item fo file.
@@ -163,6 +164,8 @@ void GenericCore::setupModels() {
   m_mainModel       = make_shared<TableModel>(m_modelUndoStack, this);
   m_sortFilterModel = make_shared<GeneralSortFilterModel>(m_mainModel);
 
+  m_modelSummary = make_shared<ModelSummary>(m_mainModel, this);
+
   /// QAbstractItemModelTester
 #ifdef QT_DEBUG
   m_mainModelTester = make_unique<QAbstractItemModelTester>(