bundles/org.simantics.modeling.template2d.ui/src/org/simantics/modeling/template2d/ui/actions/MoveDown.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.template2d.ui.actions;\r
  13 \r
  14 import org.simantics.db.Resource;\r
  15 import org.simantics.db.WriteGraph;\r
  16 import org.simantics.db.common.request.WriteRequest;\r
  17 import org.simantics.db.common.utils.ListUtils;\r
  18 import org.simantics.db.exception.DatabaseException;\r
  19 import org.simantics.db.layer0.adapter.ActionFactory;\r
  20 import org.simantics.layer0.Layer0;\r
  21 import org.simantics.scenegraph.ontology.ScenegraphResources;\r
  22 import org.simantics.ui.SimanticsUI;\r
  23 \r
  24 public class MoveDown implements ActionFactory {\r
  25 \r
  26         @Override\r
  27     public Runnable create(Object target) {\r
  28         if(!(target instanceof Resource))\r
  29             return null;\r
  30         final Resource selection = (Resource)target;\r
  31 \r
  32         return new Runnable() {\r
  33             @Override\r
  34             public void run() {\r
  35                 SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
  36                     @Override\r
  37                     public void perform(WriteGraph g) throws DatabaseException {\r
  38                         g.markUndoPoint();\r
  39                         \r
  40                         Layer0 L0 = Layer0.getInstance(g);\r
  41                         ScenegraphResources SG = ScenegraphResources.getInstance(g);\r
  42                         \r
  43                         Resource parent = g.getPossibleObject(selection, L0.PartOf);\r
  44                         if (parent == null)\r
  45                                 return;\r
  46                         \r
  47                         Resource list = g.getPossibleObject(parent, SG.Node_children);\r
  48                         if (list == null)\r
  49                                 return;\r
  50                         \r
  51                         ListUtils.swapWithNext(g, list, selection);\r
  52                     }\r
  53                 });\r
  54             }\r
  55         };\r
  56     }\r
  57 }\r