Using QDataWidgetMapper in ItemDetailMapper to work with the model data (current index of the TableView).

mainwindow.h

@@ -37,6 +37,7 @@ class MainWindow : public QMainWindow {
 
  private slots:
   void showStatusMessage(const QString text);
+  void onCurrentChanged(const QModelIndex& current, const QModelIndex& previous);
   void onSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected);
 
   void onAboutClicked();
@@ -47,6 +48,7 @@ class MainWindow : public QMainWindow {
   /// slots for menu actions
   void openNewItemDialog();
   void openEditItemDialog();
+  void deleteCurrentItem();
   void deleteSelectedtItems();
 
   void onCleanStateChanged(bool clean);