Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.common / src / org / simantics / browsing / ui / common / comparators / ReverseLexicalComparatorFactory.java

diff --git a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/comparators/ReverseLexicalComparatorFactory.java b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/comparators/ReverseLexicalComparatorFactory.java
new file mode 100644 (file)
index 0000000..026da00
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/comparators/ReverseLexicalComparatorFactory.java
@@ -0,0 +1,72 @@
+/*******************************************************************************\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