Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.charts/src/org/simantics/charts/ui/ChartGroupPasteHandler.java b/bundles/org.simantics.charts/src/org/simantics/charts/ui/ChartGroupPasteHandler.java
new file mode 100644 (file)
index 0000000..8e3055d
--- /dev/null
+++ b/bundles/org.simantics.charts/src/org/simantics/charts/ui/ChartGroupPasteHandler.java
@@ -0,0 +1,117 @@
+/*******************************************************************************\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.HashSet;\r
+import java.util.List;\r
+import java.util.Set;\r
+\r
+import org.simantics.charts.ontology.ChartResource;\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.utils.ui.dialogs.ShowError;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ChartGroupPasteHandler extends PasteHandlerAdapter {\r
+\r
+    private Resource chartGroup;\r
+\r
+    public ChartGroupPasteHandler(Resource chartGroup) {\r
+        this.chartGroup = chartGroup;\r
+    }\r
+\r
+    @Override\r
+    public Collection<Resource> pasteFromClipboard(WriteGraph graph, SimanticsClipboard clipboard, PasteEventHandler handler) throws DatabaseException {\r
+        final List<Set<Representation>> copied = new ArrayList<>();\r
+        final List<Resource> cut = new ArrayList<>();\r
+        for (Set<Representation> object : clipboard.getContents()) {\r
+            Collection<Resource> rs = ClipboardUtils.accept(object, SimanticsKeys.KEY_COPY_RESOURCES);\r
+            if (rs != null) {\r
+                copied.add(object);\r
+            } else {\r
+                rs = ClipboardUtils.accept(object, SimanticsKeys.KEY_CUT_RESOURCES);\r
+                if (rs != null)\r
+                    cut.addAll(rs);\r
+            }\r
+        }\r
+\r
+        if (copied.isEmpty() && cut.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
+\r
+                ChartResource CHART = ChartResource.getInstance(graph);\r
+\r
+                Resource expectedModel = graph.syncRequest( new PossibleModel(chartGroup) );\r
+                if (!copied.isEmpty()) {\r
+                    Set<Set<Representation>> sources = new HashSet<>();\r
+                    for (Set<Representation> r : copied) {\r
+                        Collection<Resource> srcs = ClipboardUtils.accept(r, SimanticsKeys.KEY_COPY_RESOURCES);\r
+                        for(Resource src : srcs) {\r
+                            if (graph.isInstanceOf(src, CHART.Chart)) {\r
+                                Resource model = graph.syncRequest(new PossibleModel(src));\r
+                                if (ObjectUtils.objectEquals(expectedModel, model)) {\r
+                                    sources.add(r);\r
+                                }\r
+                            }\r
+                        }\r
+                    }\r
+                    return ChartGroupDropActionFactory.copyChartsRequest(chartGroup, sources).perform(graph);\r
+                } else if (!cut.isEmpty()) {\r
+                    Set<Resource> sources = new HashSet<>();\r
+                    for (Resource r : cut) {\r
+                        if (graph.isInstanceOf(r, CHART.Chart)) {\r
+                            Resource model = graph.syncRequest(new PossibleModel(r));\r
+                            if (ObjectUtils.objectEquals(expectedModel, model))\r
+                                sources.add(r);\r
+                        }\r
+                    }\r
+                    String error = ChartGroupDropActionFactory.validateDrop(graph, chartGroup, sources);\r
+                    if (error != null) {\r
+                        ShowError.showError("Cut Failed", error, (Throwable) null);\r
+                        return Collections.emptyList();\r
+                    }\r
+                    return ChartGroupDropActionFactory.moveChartsRequest(chartGroup, sources).perform(graph);\r
+                }\r
+                \r
+                return Collections.emptyList();\r
+                \r
+            }\r
+        });\r
+    }\r
+\r
+    @SuppressWarnings("rawtypes")\r
+    @Override\r
+    public Object getAdapter(Class adapter) {\r
+        if (Resource.class == adapter)\r
+            return chartGroup;\r
+        return null;\r
+    }\r
+\r
+}\r