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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 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.sysdyn.ui.properties.widgets.arrays;\r
  13 \r
  14 import org.eclipse.jface.viewers.ISelection;\r
  15 import org.eclipse.jface.viewers.IStructuredSelection;\r
  16 import org.eclipse.swt.SWT;\r
  17 import org.eclipse.swt.events.SelectionListener;\r
  18 import org.eclipse.swt.widgets.Button;\r
  19 import org.eclipse.swt.widgets.Composite;\r
  20 import org.simantics.browsing.ui.swt.widgets.impl.SelectionListenerImpl;\r
  21 import org.simantics.browsing.ui.swt.widgets.impl.Widget;\r
  22 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
  23 import org.simantics.db.ReadGraph;\r
  24 import org.simantics.db.Resource;\r
  25 import org.simantics.db.WriteGraph;\r
  26 import org.simantics.db.common.request.ReadRequest;\r
  27 import org.simantics.db.exception.DatabaseException;\r
  28 import org.simantics.db.management.ISessionContext;\r
  29 import org.simantics.sysdyn.SysdynResource;\r
  30 import org.simantics.utils.ui.ISelectionUtils;\r
  31 \r
  32 public class ReplaceableIndexesWidget implements Widget {\r
  33         \r
  34     Resource variable = null; \r
  35     boolean selected = false;\r
  36     org.simantics.browsing.ui.swt.widgets.Button isReplaceableButton;\r
  37     \r
  38     public ReplaceableIndexesWidget(Composite parent, WidgetSupport support, int style) {\r
  39         support.register(this);\r
  40         isReplaceableButton = new org.simantics.browsing.ui.swt.widgets.Button(parent, support, style |= SWT.CHECK);\r
  41         isReplaceableButton.setText("Can be replaced by parent module");\r
  42     }\r
  43 \r
  44     @Override\r
  45     public void setInput(ISessionContext context, Object input) {\r
  46         if(input instanceof ISelection) {\r
  47             ISelection selection = (ISelection)input;\r
  48             if(selection instanceof IStructuredSelection) {\r
  49                 Resource resource = ISelectionUtils.filterSingleSelection(selection, Resource.class);\r
  50                 if(resource != null) {\r
  51                     variable = resource;\r
  52                 }\r
  53             }\r
  54         }\r
  55         \r
  56         if(variable == null) return;\r
  57         \r
  58         try {\r
  59             context.getSession().syncRequest(new ReadRequest() {\r
  60                 \r
  61                 @Override\r
  62                 public void run(ReadGraph graph) throws DatabaseException {\r
  63                     SysdynResource sr = SysdynResource.getInstance(graph);\r
  64                     final Boolean replaceable = graph.getPossibleRelatedValue(variable, sr.Enumeration_isReplaceable);\r
  65                     if(replaceable != null)\r
  66                         selected = replaceable;\r
  67                     final Button button = getWidget();\r
  68                     button.getDisplay().asyncExec(new Runnable() {\r
  69                         \r
  70                         @Override\r
  71                         public void run() {\r
  72                             if(button.isDisposed()) return;\r
  73                             \r
  74                             if(replaceable)\r
  75                                 button.setSelection(true);\r
  76                             else\r
  77                                 button.setSelection(false);\r
  78                         }\r
  79                     });\r
  80 \r
  81                         \r
  82                 }\r
  83             });\r
  84         } catch (DatabaseException e) {\r
  85             e.printStackTrace();\r
  86         }\r
  87         \r
  88         isReplaceableButton.addSelectionListener(new SelectionListenerImpl<Resource>(context) {\r
  89 \r
  90             @Override\r
  91             public void apply(WriteGraph graph, Resource input) throws DatabaseException {\r
  92                 SysdynResource sr =  SysdynResource.getInstance(graph);\r
  93                 Boolean replaceable = graph.getPossibleRelatedValue(input, sr.Enumeration_isReplaceable);\r
  94                 if(Boolean.TRUE.equals(replaceable)) {\r
  95                     graph.claimLiteral(input, sr.Enumeration_isReplaceable, false);\r
  96                     selected = false;\r
  97                 } else {\r
  98                         graph.claimLiteral(input, sr.Enumeration_isReplaceable, true);\r
  99                         selected = true;\r
 100                 }\r
 101             }\r
 102         });\r
 103     }\r
 104     \r
 105     public Button getWidget() {\r
 106         return isReplaceableButton.getWidget();\r
 107     }\r
 108     \r
 109     public boolean getSelection() {\r
 110         return selected;\r
 111     }\r
 112     \r
 113     public void addSelectionListener(SelectionListener listener) {\r
 114         isReplaceableButton.addSelectionListener(listener);\r
 115     }\r
 116 \r
 117 }\r