From 8bf0589ddac4ecb3b16390985c0277e3de601e73 Mon Sep 17 00:00:00 2001
From: "n.hoffmann" <n.hoffmann@localhost>
Date: Tue, 31 Jan 2012 15:52:07 +0000
Subject: [PATCH] Added the ability to clear the selection of a combo

---
 .../taxeditor/ui/combo/TermComboElement.java  | 22 +++++++++++--------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/combo/TermComboElement.java b/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/combo/TermComboElement.java
index c19921f36..ac7e878a5 100644
--- a/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/combo/TermComboElement.java
+++ b/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/combo/TermComboElement.java
@@ -127,24 +127,28 @@ public class TermComboElement<T extends DefinedTermBase>
 	}
 
 	/**
-	 * <p>
-	 * Setter for the field <code>selection</code>.
-	 * </p>
+	 * <p>Sets the selection of the combo to the given T object.</p>
+	 * <p>Passing <code>null</code> to this method will set the selection to 
+	 * the empty element and effectively clear the selection</p>
 	 * 
 	 * @param selection
-	 *            a T object.
+	 *            a T object or <code>null</code> to clear the selection
 	 */
-	public void setSelection(T selection) {
+	public void setSelection(T selection) {			
 		Listener[] listeners = combo.getListeners(SWT.Selection);
 
 		for (Listener listener : listeners) {
 			combo.removeListener(SWT.Selection, listener);
 		}
-
-		int index = terms.indexOf(selection);
-		if (index == -1) {
-			createTermNotInPreferredTerms(selection);
+		int index;
+		if(selection == null){
+			index = 0;
+		}else{
 			index = terms.indexOf(selection);
+			if (index == -1) {
+				createTermNotInPreferredTerms(selection);
+				index = terms.indexOf(selection);
+			}
 		}
 		combo.select(index);
 
-- 
2.34.1