+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 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.common.comparators;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.NodeQueryManager;\r
+import org.simantics.browsing.ui.content.ComparableContext;\r
+import org.simantics.browsing.ui.content.ComparableContextFactory;\r
+import org.simantics.browsing.ui.content.Labeler;\r
+\r
+public class ReverseLexicalComparatorFactory implements ComparableContextFactory {\r
+\r
+ private final String column;\r
+ private final String label;\r
+\r
+ public ReverseLexicalComparatorFactory(String column) {\r
+ this.column = column;\r
+ this.label = null;\r
+ }\r
+\r
+ public ReverseLexicalComparatorFactory(String column, String label) {\r
+ this.column = column;\r
+ this.label = label;\r
+ }\r
+\r
+ @Override\r
+ public ComparableContext[] create(NodeQueryManager manager, NodeContext parent, NodeContext[] children) {\r
+ ComparableContext[] result = new ComparableContext[children.length];\r
+ for (int i = 0; i < children.length; i++) {\r
+ NodeContext child = children[i];\r
+ Labeler labeler = manager.query(child, BuiltinKeys.SELECTED_LABELER);\r
+\r
+ int category = (labeler != null) ? labeler.getCategory() : 0;\r
+ String label = (labeler != null) ? labeler.getLabels().get(column) : "";\r
+ if (label == null)\r
+ label = "";\r
+\r
+ result[i] = new ImmutableLexicalComparable(category, label, child) {\r
+ @Override\r
+ public int compareTo(ComparableContext arg0) {\r
+ ImmutableLexicalComparable other = (ImmutableLexicalComparable) arg0;\r
+\r
+ int catDelta = other.getCategory() - getCategory();\r
+ if (catDelta != 0)\r
+ return catDelta;\r
+\r
+ String label1 = getLabel();\r
+ String label2 = other.getLabel();\r
+\r
+ return label2.compareToIgnoreCase(label1);\r
+ }\r
+ };\r
+ }\r
+ return result;\r
+ }\r
+\r
+ @Override\r
+ public String toString() {\r
+ return label != null ? label : "Reverse alphabetical";\r
+ }\r
+\r
+}\r