Deleting items from the model can now be made undone/redone.

model/tablemodel.cpp

@@ -2,6 +2,7 @@
 
 #include "../formats/jsonparser.h"
 #include "commands/insertrowscommand.h"
+#include "commands/removerowscommand.h"
 #include "modelitem.h"
 
 QHash<int, QByteArray> TableModel::ROLE_NAMES = {{NameRole, "Name"},
@@ -108,9 +109,8 @@ bool TableModel::removeRows(int firstRow, int nRows, const QModelIndex& parentIn
     return false;
   }
 
-  beginRemoveRows(QModelIndex(), firstRow, lastRow);
-  m_items.remove(firstRow, nRows);
-  endRemoveRows();
+  RemoveRowsCommand* removeCommand = new RemoveRowsCommand(this, firstRow, nRows);
+  m_undoStack->push(removeCommand);
 
   return true;
 }