--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.swt;\r
+\r
+import org.eclipse.swt.widgets.TreeItem;\r
+import org.simantics.browsing.ui.common.internal.UIElementReference;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class TreeItemReference implements UIElementReference {\r
+\r
+ private final TreeItem item;\r
+\r
+ public static TreeItemReference create(TreeItem item) {\r
+ return new TreeItemReference(item);\r
+ }\r
+\r
+ private TreeItemReference(TreeItem item) {\r
+ this.item = item;\r
+ }\r
+\r
+ public TreeItem getItem() {\r
+ return item;\r
+ }\r
+\r
+ @Override\r
+ public boolean hasReference() {\r
+ return item != null;\r
+ }\r
+\r
+ @Override\r
+ public boolean isDisposed() {\r
+ if (item == null)\r
+ return true;\r
+ return item.isDisposed();\r
+ }\r
+\r
+ @Override\r
+ public String toString() {\r
+ if (item == null)\r
+ return "(" + String.valueOf(System.identityHashCode(this)) + ":no item)";\r
+ return "(" + String.valueOf(System.identityHashCode(this)) + ":TreeItem@" + System.identityHashCode(item) + ")";\r
+ }\r
+\r
+}\r