org.simantics.proconf.g3d/src/org/simantics/proconf/g3d/actions/RemoveAction.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * which accompanies this distribution, and is available at\r
   6  * http://www.eclipse.org/legal/epl-v10.html\r
   7  *\r
   8  * Contributors:\r
   9  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  10  *******************************************************************************/\r
  11 package org.simantics.proconf.g3d.actions;\r
  12 \r
  13 import java.util.List;\r
  14 \r
  15 import org.simantics.db.Graph;\r
  16 import org.simantics.db.GraphRequestStatus;\r
  17 import org.simantics.db.Resource;\r
  18 import org.simantics.layer0.utils.IEntity;\r
  19 import org.simantics.layer0.utils.EntityFactory;\r
  20 import org.simantics.proconf.g3d.Activator;\r
  21 import org.simantics.proconf.g3d.Resources;\r
  22 import org.simantics.proconf.g3d.base.ThreeDimensionalEditorBase;\r
  23 import org.simantics.proconf.g3d.common.StructuredResourceSelection;\r
  24 \r
  25 public class RemoveAction extends WriteAction {\r
  26     \r
  27     public RemoveAction(ThreeDimensionalEditorBase parent) {\r
  28         super(parent,false);\r
  29     }\r
  30     \r
  31     public void init() {\r
  32         setText("Remove");\r
  33         setToolTipText("Remove the object");\r
  34         this.setImageDescriptor(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/delete.png"));\r
  35     }\r
  36     public GraphRequestStatus doChanges(Graph graph) {\r
  37         StructuredResourceSelection sel = parent.getSelectionAdapter().getCurrentSelection();\r
  38         List<Resource> res = sel.getSelectionList();\r
  39         for (Resource r : res) {\r
  40                 IEntity t = EntityFactory.create(graph, r);\r
  41                 if (t.isInstanceOf(Resources.g3dResource.G3DNode)) {\r
  42                     IEntity parentNode = t.getSingleRelatedObject(Resources.g3dResource.HasParent);\r
  43                     parentNode.removeStatement(Resources.g3dResource.HasChild, t);\r
  44                 }\r
  45 \r
  46             }\r
  47         return GraphRequestStatus.transactionComplete();\r
  48      \r
  49     }\r
  50     \r
  51     @Override\r
  52     public boolean usable(Graph graph,List<Resource> resources) {\r
  53         return resources.size() > 0;\r
  54     }\r
  55 \r
  56 }\r