added save functions to various classes

Each class is responsible for its own saving and loading from the XML data in order to reduce the complexity of the save code.
2020-01-12 18:36:31 +11:00
parent fa95a61c7b
commit bb57884cac
30 changed files with 275 additions and 35 deletions
@@ -58,12 +58,12 @@ public:
  /**
   * @brief Retrieve a complete list of the nodes belonging to this graph
   */
-  const QList<Node*>& nodes();
+  const QList<Node*>& nodes() const;

  /**
   * @brief Returns whether a certain Node is in the graph or not
   */
-  bool ContainsNode(Node* n);
+  bool ContainsNode(Node* n) const;

 signals:
  /**