started adding a property-cell
diff --git a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/tree/PropertyTreeCell.java b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/tree/PropertyTreeCell.java
new file mode 100644
index 0000000..2439eb3
--- /dev/null
+++ b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/tree/PropertyTreeCell.java
@@ -0,0 +1,76 @@
+//package org.eclipse.fx.ui.controls.tree;
+//
+//import java.util.function.Function;
+//
+//import org.eclipse.jdt.annotation.NonNull;
+//import org.eclipse.jdt.annotation.Nullable;
+//
+//import javafx.beans.InvalidationListener;
+//import javafx.beans.property.ObjectProperty;
+//import javafx.beans.property.Property;
+//import javafx.beans.property.SimpleObjectProperty;
+//import javafx.scene.Node;
+//import javafx.scene.control.TreeCell;
+//
+//public class PropertyTreeCell<T> extends TreeCell<T> {
+// @NonNull
+// private final ObjectProperty<@NonNull Function<@Nullable T, @Nullable Property<@Nullable CharSequence>>> labelExtractor;
+// @NonNull
+// private final ObjectProperty<@NonNull Function<@Nullable T, @Nullable Property<@Nullable Node>>> graphicExtractor;
+// @NonNull
+// private final InvalidationListener labelFunctionChangeTracker;
+//
+// Property<@Nullable CharSequence> labelProperty;
+//
+// /**
+// * Create a new instance
+// *
+// * @param labelExtractor
+// * property with a function used to extract the string
+// */
+// public PropertyTreeCell(
+// @NonNull ObjectProperty<@NonNull Function<@Nullable T, @Nullable Property<@Nullable CharSequence>>> labelExtractor) {
+// this(labelExtractor,new SimpleObjectProperty<>(i -> null));
+// }
+//
+// /**
+// * Create a new instance
+// *
+// * @param labelExtractor
+// * property with a function used to extract the string
+// * @param graphicExtractor
+// * property with a function used to extract a graphic node
+// */
+// public PropertyTreeCell(
+// @NonNull ObjectProperty<@NonNull Function<@Nullable T, Property<@Nullable CharSequence>>> labelExtractor,
+// @NonNull ObjectProperty<@NonNull Function<@Nullable T, Property<@Nullable Node>>> graphicExtractor) {
+// this.labelExtractor = labelExtractor;
+// this.graphicExtractor = graphicExtractor;
+// this.labelFunctionChangeTracker = ( o ) -> {
+// @Nullable
+// Property<@Nullable CharSequence> apply = this.labelExtractor.get().apply(getItem());
+// };
+// }
+//
+// @Override
+// protected void updateItem(T item, boolean empty) {
+// super.updateItem(item, empty);
+// if( ! empty ) {
+// updateText(this.labelExtractor.get());
+// } else {
+// setGraphic(null);
+// setText(null);
+// }
+// }
+//
+// private void updateText(@NonNull Function<@Nullable T, @Nullable Property<@Nullable CharSequence>> function) {
+// this.labelProperty = this.labelExtractor.get().apply(getItem());
+// if( this.labelProperty != null ) {
+// updateText(this.labelProperty.getValue());
+// }
+// }
+//
+// private void updateText(CharSequence t) {
+//
+// }
+//}
