Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.charts / src / org / simantics / charts / ui / ChartPasteHandler.java

diff --git a/bundles/org.simantics.charts/src/org/simantics/charts/ui/ChartPasteHandler.java b/bundles/org.simantics.charts/src/org/simantics/charts/ui/ChartPasteHandler.java
new file mode 100644 (file)
index 0000000..93518fb
--- /dev/null
+++ b/bundles/org.simantics.charts/src/org/simantics/charts/ui/ChartPasteHandler.java
@@ -0,0 +1,90 @@
+/*******************************************************************************\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.charts.ui;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+import java.util.List;\r
+import java.util.Set;\r
+\r
+import org.simantics.charts.query.AddChartItem;\r
+import org.simantics.charts.query.ChartItemDescriptor;\r
+import org.simantics.databoard.util.ObjectUtils;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.WriteResultRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.adapter.PasteHandlerAdapter;\r
+import org.simantics.db.layer0.request.PossibleModel;\r
+import org.simantics.db.layer0.util.ClipboardUtils;\r
+import org.simantics.db.layer0.util.PasteEventHandler;\r
+import org.simantics.db.layer0.util.SimanticsClipboard;\r
+import org.simantics.db.layer0.util.SimanticsClipboard.Representation;\r
+import org.simantics.db.layer0.util.SimanticsKeys;\r
+import org.simantics.modeling.ModelingResources;\r
+\r
+/**\r
+ * Paste handler of Paste Resource\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ChartPasteHandler extends PasteHandlerAdapter {\r
+\r
+    private Resource chart;\r
+\r
+    public ChartPasteHandler(Resource chart) {\r
+        this.chart = chart;\r
+    }\r
+\r
+    @Override\r
+    public Collection<Resource> pasteFromClipboard(WriteGraph graph, SimanticsClipboard clipboard, PasteEventHandler handler) throws DatabaseException {\r
+        final List<Resource> resources = new ArrayList<Resource>();\r
+        for (Set<Representation> object : clipboard.getContents()) {\r
+            Collection<Resource> rs = ClipboardUtils.accept(object, SimanticsKeys.KEY_COPY_RESOURCES);\r
+            if (rs != null)\r
+                resources.addAll(rs);\r
+        }\r
+\r
+        if (resources.isEmpty())\r
+            return Collections.emptyList();\r
+\r
+        return graph.syncRequest(new WriteResultRequest<Collection<Resource>>() {\r
+            @Override\r
+            public Collection<Resource> perform(WriteGraph graph) throws DatabaseException {\r
+                ModelingResources MOD = ModelingResources.getInstance(graph);\r
+                Resource expectedModel = graph.syncRequest( new PossibleModel(chart) );\r
+                List<ChartItemDescriptor> refs = new ArrayList<ChartItemDescriptor>();\r
+                for (Resource r : resources) {\r
+                    if (graph.isInstanceOf(r, MOD.Subscription_Item)) {\r
+                        Resource model = graph.syncRequest(new PossibleModel(r));\r
+                        if (ObjectUtils.objectEquals(expectedModel, model))\r
+                            refs.add( AddChartItem.createDescriptor(graph, r) );\r
+                    }\r
+                }\r
+                if (!refs.isEmpty())\r
+                    return AddChartItem.addAndMoveChartItems(chart, refs, Collections.<Resource>emptySet()).perform(graph);\r
+                else\r
+                       return Collections.emptyList();\r
+            }\r
+        });\r
+    }\r
+\r
+    @SuppressWarnings("rawtypes")\r
+    @Override\r
+    public Object getAdapter(Class adapter) {\r
+        if (Resource.class == adapter)\r
+            return chart;\r
+        return null;\r
+    }\r
+\r
+}\r