SceneBuilder to provide scene graph statistics during editing

[Oliver-Loeffler]

For small FXML files one can count manually the nodes added. However some nodes are composite nodes and consist of multiple nodes. There is no summary yet on how many nodes have been added by the user or how many nodes are effectively on the scene graph.

Expected Behavior

SceneBuilder could display the total number of nodes on the graph for a given FXML (e.g. as a summary tab on the inspector panel). Additionally it could display the number of nodes added by the user (e.g. Accordion counts as one user node, internally it consists of multiple nodes). The user then could use this information as a guideline to minimize the number of nodes in a scene.

Current Behavior

There is no indication, how many nodes have been placed on the scene graph.

Context

A scene graph statistics summary could help the user to design compact, lean FXMLs which contain only the necessary number of nodes. When developing FXML views for embedded devices or developing FXML based controls, one would like to minimize the number of nodes used for performance and memory consumption reasons.