Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / diagramEditor / handlers / AlignVerticalHandler.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/handlers/AlignVerticalHandler.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/handlers/AlignVerticalHandler.java
new file mode 100644 (file)
index 0000000..66f5290
--- /dev/null
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/handlers/AlignVerticalHandler.java
@@ -0,0 +1,93 @@
+/*******************************************************************************\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.modeling.ui.diagramEditor.handlers;\r
+\r
+import java.util.ArrayList;\r
+import java.util.List;\r
+\r
+import org.eclipse.core.commands.AbstractHandler;\r
+import org.eclipse.core.commands.ExecutionEvent;\r
+import org.eclipse.core.commands.ExecutionException;\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.eclipse.ui.handlers.HandlerUtil;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.WriteRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.ui.SimanticsUI;\r
+import org.simantics.ui.utils.ResourceAdaptionUtils;\r
+\r
+/**\r
+ * \r
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
+ *\r
+ */\r
+public class AlignVerticalHandler extends AbstractHandler {\r
+\r
+       @Override\r
+       public Object execute(ExecutionEvent event) throws ExecutionException {\r
+               \r
+               ISelection s = HandlerUtil.getCurrentSelectionChecked(event);\r
+               final Resource resources[] = ResourceAdaptionUtils.toResources(s);\r
+               \r
+               if (resources.length < 2)\r
+                       return null;\r
+               \r
+               SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
+                       \r
+                       @Override\r
+                       public void perform(WriteGraph graph) throws DatabaseException {\r
+                               DiagramResource dr = DiagramResource.getInstance(graph);\r
+                               \r
+                               List<Resource> elements = new ArrayList<Resource>();\r
+                               List<double[]> transforms = new ArrayList<double[]>();\r
+                               for (Resource r : resources) {\r
+                                       //System.out.println(r + " " + GraphUtils.getReadableName(graph, r));\r
+                                       if (graph.isInstanceOf(r, dr.Element) && !graph.isInstanceOf(r, dr.Connection)) {\r
+                                               double transform[] = graph.getPossibleRelatedValue(r, dr.HasTransform);\r
+                                               if (transform != null) {\r
+                                                       elements.add(r);\r
+                                                       transforms.add(transform);\r
+                                               }\r
+                                       }\r
+                               }\r
+                               double mx = 0;\r
+                               double my = 0;\r
+                               for (double[] t : transforms) {\r
+                                       mx += t[4];\r
+                                       my += t[5];\r
+                               }\r
+                               mx /= transforms.size();\r
+                               my /= transforms.size();\r
+                               \r
+                               // prevent moving symbols into the same position\r
+                               int count = 0;\r
+                               for (double t[] : transforms) {\r
+                                       if (Math.abs(t[5] - my) < 0.1) {\r
+                                               count++;\r
+                                       }\r
+                               }\r
+                               if (count > 1)\r
+                                       return;\r
+                               \r
+                               for (int i = 0; i < transforms.size(); i++) {\r
+                                       Resource element = elements.get(i);\r
+                                       double t[] = transforms.get(i);\r
+                                       graph.claimLiteral(element, dr.HasTransform, new double[]{t[0],t[1],t[2],t[3],mx,t[5]});\r
+                               }\r
+                       }\r
+               });\r
+               return null;\r
+       }\r
+\r
+}\r