* Resets the transformer of all leaves to the default transformer.
*
* @see eu.scape_project.planning.IdentifyRequirements.workflow.IdentifyRequirementsAction#resetTransformers()
*/
private void resetTransformers() {
TreeNode root = plan.getTree().getRoot();
for (Leaf leaf : root.getAllLeaves()) {
/*
* maybe the scaletype is not set yet -> leaf.setDefaultTransformer
* has to handle null-values itself
*/
if ((leaf.getScale() == null) || (leaf.getScale().isDirty())) {