gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2013 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  *     Semantum Oy - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.sysdyn.ui.editor.participant;\r
  13 \r
  14 import java.util.Collection;\r
  15 \r
  16 import org.simantics.db.Resource;\r
  17 import org.simantics.db.Session;\r
  18 import org.simantics.db.VirtualGraph;\r
  19 import org.simantics.db.WriteGraph;\r
  20 import org.simantics.db.common.request.WriteRequest;\r
  21 import org.simantics.db.exception.DatabaseException;\r
  22 import org.simantics.diagram.stubs.DiagramResource;\r
  23 import org.simantics.diagram.ui.DiagramModelHints;\r
  24 import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
  25 import org.simantics.g2d.canvas.impl.HintReflection.HintListener;\r
  26 import org.simantics.g2d.diagram.DiagramHints;\r
  27 import org.simantics.g2d.diagram.IDiagram;\r
  28 import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;\r
  29 import org.simantics.g2d.diagram.participant.Selection;\r
  30 import org.simantics.g2d.element.ElementHints;\r
  31 import org.simantics.g2d.element.IElement;\r
  32 import org.simantics.sysdyn.SysdynResource;\r
  33 import org.simantics.ui.SimanticsUI;\r
  34 import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
  35 import org.simantics.utils.datastructures.hints.IHintObservable;\r
  36 import org.simantics.utils.ui.AdaptionUtils;\r
  37 \r
  38 \r
  39 public class SelectionUpdaterParticipant extends AbstractDiagramParticipant {\r
  40 \r
  41     @Dependency Selection selection;\r
  42 \r
  43     @HintListener(Class = Selection.class, Field = "SELECTION0")\r
  44     public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
  45         IDiagram diagram = sender.getHint(DiagramHints.KEY_DIAGRAM);\r
  46         Collection<IElement> elements = AdaptionUtils.adaptToCollection(newValue, IElement.class);\r
  47         if(diagram != null) {\r
  48             Session session = SimanticsUI.getSession();\r
  49             session.asyncRequest(new ModifyDiagramSelection(session.getService(VirtualGraph.class), diagram, elements));\r
  50         }\r
  51     }\r
  52     \r
  53     @HintListener(Class = Selection.class, Field = "SELECTION0")\r
  54     public void hintRemoved(IHintObservable sender, Key key, Object oldValue) {\r
  55         IDiagram diagram = sender.getHint(DiagramHints.KEY_DIAGRAM);\r
  56         if(diagram != null) {\r
  57             Session session = SimanticsUI.getSession();\r
  58             session.asyncRequest(new ModifyDiagramSelection(session.getService(VirtualGraph.class), diagram, null));\r
  59         }\r
  60     }\r
  61     \r
  62     \r
  63     private class ModifyDiagramSelection extends WriteRequest {\r
  64         IDiagram diagram;\r
  65         Collection<IElement> elements;\r
  66         \r
  67         public ModifyDiagramSelection(VirtualGraph provider, IDiagram diagram, Collection<IElement> elements) {\r
  68             super(provider);\r
  69             this.elements = elements;\r
  70             this.diagram = diagram;\r
  71         }\r
  72         \r
  73         @Override\r
  74         public void perform(WriteGraph graph) throws DatabaseException {\r
  75             Resource diagramRuntime = diagram.getHint(DiagramModelHints.KEY_DIAGRAM_RUNTIME_RESOURCE);\r
  76             SysdynResource SR = SysdynResource.getInstance(graph);\r
  77             DiagramResource DR = DiagramResource.getInstance(graph);\r
  78 \r
  79             graph.deny(diagramRuntime, SR.ConfigurationDiagram_selection);\r
  80 \r
  81             if(elements != null) {\r
  82                 for(IElement e : elements) {\r
  83                     Resource object = e.getHint(ElementHints.KEY_OBJECT);\r
  84                     if(object != null && graph.isInstanceOf(object, DR.Element)) {\r
  85                         graph.claim(diagramRuntime, SR.ConfigurationDiagram_selection, object);\r
  86                     }\r
  87                 }\r
  88             }\r
  89         }\r
  90     }\r
  91 }\r