Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / PropertyPageUtil.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/PropertyPageUtil.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/PropertyPageUtil.java
new file mode 100644 (file)
index 0000000..65e99f7
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/PropertyPageUtil.java
@@ -0,0 +1,107 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 Association for Decentralized Information Management in\r
+ * 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 java.util.ArrayList;\r
+import java.util.Collection;\r
+\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.ResourceArray;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.ui.utils.ResourceAdaptionUtils;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public final class PropertyPageUtil {\r
+\r
+    public static final int MAX_SELECTION_LENGTH_TO_SHOW = 5;\r
+\r
+    public static String computeTitle(ReadGraph graph, ISelection selection) throws DatabaseException {\r
+        boolean sameTypes = true;\r
+\r
+        try {\r
+\r
+            final ResourceArray[] ras = ResourceAdaptionUtils.toResourceArrays(selection);\r
+            if (ras.length == 0)\r
+                return null;\r
+\r
+            // Check if all the input resource are of the same type.\r
+            Collection<Resource> types = null;\r
+            for (ResourceArray ra : ras) {\r
+                if (ra.isEmpty()) {\r
+                    return null;\r
+                }\r
+                if (types == null) {\r
+                    types = graph.getPrincipalTypes(ra.resources[0]);\r
+                } else {\r
+                    Collection<Resource> ts = graph.getPrincipalTypes(ra.resources[0]);\r
+                    ts.removeAll(types);\r
+                    if (!ts.isEmpty()) {\r
+                        sameTypes = false;\r
+                        break;\r
+                    }\r
+                }\r
+            }\r
+            if (sameTypes) {\r
+                // If the resource no longer exists, provide default name only.\r
+                if (!graph.hasStatement(ras[0].resources[0])) {\r
+                    return null;\r
+                }\r
+\r
+                String name = safeGetName(graph, ras[0].resources[0]);\r
+                if (ras.length > 1)\r
+                    name += " [" + ras.length +"]";\r
+                return name;\r
+            } else {\r
+                Collection<String> names = new ArrayList<String>(ras.length);\r
+                boolean truncate = ras.length > MAX_SELECTION_LENGTH_TO_SHOW;\r
+                int end = Math.min(ras.length, MAX_SELECTION_LENGTH_TO_SHOW);\r
+                int missing = ras.length - end;\r
+                for (int i = 0; i < end; ++i) {\r
+                    // If the resource no longer exists, provide default name only.\r
+                    if (!graph.hasStatement(ras[i].resources[0]))\r
+                        continue;\r
+\r
+                    names.add(safeGetName(graph, ras[i].resources[0]));\r
+                }\r
+                if (names.isEmpty()) {\r
+                    return null;\r
+                }\r
+\r
+                if (truncate)\r
+                    names.add("+ " + missing + " more...");\r
+\r
+                String name = names.toString();\r
+                return name;\r
+            }\r
+\r
+        } catch (Throwable t) {\r
+            t.printStackTrace();\r
+            return null;\r
+        }\r
+   }\r
+\r
+    private static String safeGetName(ReadGraph g, Resource r) throws DatabaseException {\r
+        return NameUtils.getSafeName(g, r);\r
+//        try {\r
+//            //System.out.println("safeGetName " + r);\r
+//            return g.adapt(r, String.class);\r
+//        } catch (AdaptionException e) {\r
+//            return NameUtils.getSafeName(g, r);\r
+//        }\r
+    }\r
+\r
+}
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