added new expandToLevel function for DynamicTreeTableViewer

Issue-Ref: 4015
Issue-Url: https://af3-developer.fortiss.org/issues/4015



Signed-off-by: Johannes Eder <eder@fortiss.org>

org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/control/treetableview/.ratings

 DynamicTreeContentProviderBase.java 6760a6dc5721175b1dada8f30fd9da05f7bcc4b3 GREEN
 DynamicTreeItem.java 75dc5534b119ffdb3c10a65810c2a0f330b7955e GREEN
 DynamicTreeTableUIProviderBase.java f78c0f8b52fbc939166b3f94f7f6006cc0f4d32b GREEN
-DynamicTreeTableViewer.java 5e58a31a63f8e56d8c8e69e2c4d095809bc46bf1 GREEN
+DynamicTreeTableViewer.java 9eb192873acf4f08ab3570c195d8828224a61934 YELLOW
 DynamicTreeUIProviderBase.java e9b68607683de279d0cb8712a28dc131c5c33ece GREEN
 DynamicTreeViewer.java 725f41f4fb4b6bfa813f010fb9083ab02eea164a GREEN
 DynamicTreeViewerBase.java a2013538b62d86f6a09efdf2cd78babac2072484 GREEN

org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/control/treetableview/DynamicTreeTableViewer.java

@@ -119,14 +119,19 @@ public final class DynamicTreeTableViewer<T> extends DynamicTreeViewerBase<T> {
 		}
 	}
 
-	/** Expands all items on all levels. */
-	public void expandAllItems() {
+	/** Expand all items to the given level. */
+	public void expandToLevel(int revealLevel) {
 		TreeItem<T> root = view.getRoot();
 		if(root == null) {
 			return;
 		}
 
-		expandItem(root, MAX_VALUE);
+		expandItem(root, revealLevel);
+	}
+
+	/** Expands all items on all levels. */
+	public void expandAllItems() {
+		expandToLevel(MAX_VALUE);
 	}
 
 	/**