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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2010, 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.sysdyn.ui.properties.widgets.expressions;\r
  13 \r
  14 \r
  15 import java.util.Map;\r
  16 \r
  17 import org.eclipse.jface.layout.GridDataFactory;\r
  18 import org.eclipse.jface.layout.GridLayoutFactory;\r
  19 import org.eclipse.swt.SWT;\r
  20 import org.eclipse.swt.widgets.Composite;\r
  21 import org.eclipse.swt.widgets.Label;\r
  22 import org.eclipse.swt.widgets.Table;\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.WriteResultRequest;\r
  27 import org.simantics.db.exception.DatabaseException;\r
  28 import org.simantics.db.layer0.variable.Variable;\r
  29 import org.simantics.db.request.Read;\r
  30 import org.simantics.simulation.experiment.ExperimentState;\r
  31 import org.simantics.simulation.experiment.IExperiment;\r
  32 import org.simantics.simulation.project.IExperimentManager;\r
  33 import org.simantics.sysdyn.SysdynResource;\r
  34 import org.simantics.sysdyn.manager.SysdynGameExperiment;\r
  35 import org.simantics.sysdyn.ui.utils.ExpressionUtils;\r
  36 import org.simantics.ui.SimanticsUI;\r
  37 \r
  38 public class ParameterExpression extends BasicExpression {\r
  39 \r
  40         Variable variable;\r
  41 \r
  42         public ParameterExpression(Variable variable) {\r
  43                 try {\r
  44                         this.expressionType = SimanticsUI.getSession().syncRequest(new Read<Resource>() {\r
  45 \r
  46                                 @Override\r
  47                                 public Resource perform(ReadGraph graph) throws DatabaseException {\r
  48                                         return SysdynResource.getInstance(graph).ParameterExpression;\r
  49                                 }\r
  50                         });\r
  51                 } catch (DatabaseException e) {\r
  52                         e.printStackTrace();\r
  53                 }               \r
  54 \r
  55                 this.variable = variable;\r
  56         }\r
  57 \r
  58 \r
  59         @Override\r
  60         public void createExpressionFields(Composite parent, Map<String, Object> data, Table allowedVariables) {\r
  61                 // Create the single field\r
  62                 GridLayoutFactory.fillDefaults().numColumns(2).applyTo(parent);\r
  63                 String equation = data.get("equation") != null ? (String)data.get("equation") : "";\r
  64 \r
  65                 Label l = new Label(parent, SWT.NONE);\r
  66                 l.setText("=");\r
  67 \r
  68                 expression = new ExpressionField(parent, SWT.BORDER, null, false);\r
  69                 expression.setExpression(equation);\r
  70                 GridDataFactory.fillDefaults().grab(true, true).applyTo(expression);\r
  71 \r
  72         }\r
  73 \r
  74         @Override\r
  75         public void readData(final Resource expression, Map<String, Object> data) {\r
  76                 IExperimentManager manager = SimanticsUI.getProject().getHint(IExperimentManager.KEY_EXPERIMENT_MANAGER);\r
  77                 IExperiment experiment = manager.getActiveExperiment();\r
  78                 if(experiment == null || !(experiment instanceof SysdynGameExperiment)) {\r
  79                         super.readData(expression, data);\r
  80                 } else {\r
  81                         Double value;\r
  82                         ExperimentState state = ((SysdynGameExperiment)experiment).getSysdynExperimentState();\r
  83                         if(ExperimentState.RUNNING.equals(state) || ExperimentState.STOPPED.equals(state)) {\r
  84                             try {\r
  85                                 value = SimanticsUI.getSession().syncRequest(new Read<Double>() {\r
  86 \r
  87                                     @Override\r
  88                                     public Double perform(ReadGraph graph) throws DatabaseException {\r
  89                                         try {\r
  90                                             Variable valuesVariable = variable.browsePossible(graph, "#value#");\r
  91                                             double[] res = valuesVariable.getValue(graph);\r
  92                                             if(res != null && res.length == 1)\r
  93                                                 return res[0];\r
  94                                             else\r
  95                                                 return null;\r
  96                                         } catch (DatabaseException e) {\r
  97                                             throw new DatabaseException(e.getMessage());\r
  98                                         } \r
  99                                     }\r
 100                                 });\r
 101                                 if(value != null)\r
 102                                     data.put("equation", value.toString());\r
 103                             } catch (DatabaseException e) {}\r
 104                         }\r
 105                         super.readData(expression, data);\r
 106 \r
 107                 }\r
 108         }\r
 109 \r
 110         @Override\r
 111         public void save(final Resource expression, Map<String, Object> data) {\r
 112 \r
 113                 IExperimentManager manager = SimanticsUI.getProject().getHint(IExperimentManager.KEY_EXPERIMENT_MANAGER);\r
 114                 IExperiment experiment = manager.getActiveExperiment();\r
 115                 if(experiment != null && experiment instanceof SysdynGameExperiment) {\r
 116                         final String currentText = this.expression.getExpression();\r
 117                         final String oldEquation = (String)data.get("equation");\r
 118                         if(oldEquation == null || \r
 119                                 (currentText != null && expressionType != null)) {\r
 120                             if(ExpressionUtils.isParameter(currentText)) {\r
 121                                 Boolean savedIntoFMU = false;\r
 122 \r
 123                                 ExperimentState state = ((SysdynGameExperiment)experiment).getSysdynExperimentState();\r
 124                                 // Set value to control only if the simulation is running or stopped, not before initialization\r
 125                                 if(ExperimentState.RUNNING.equals(state) || ExperimentState.STOPPED.equals(state)) {\r
 126                                     try {\r
 127                                         savedIntoFMU = SimanticsUI.getSession().syncRequest(new WriteResultRequest<Boolean>() {\r
 128 \r
 129                                             @Override\r
 130                                             public Boolean perform(WriteGraph graph)\r
 131                                                     throws DatabaseException {\r
 132                                                 try {\r
 133                                                     Variable valuesVariable = variable.browsePossible(graph, "#value#");\r
 134                                                     if(valuesVariable == null)\r
 135                                                         return false;\r
 136                                                     valuesVariable.setValue(graph, new double[] {Double.parseDouble(currentText)});\r
 137                                                     return true;\r
 138                                                 } catch (Exception e) {\r
 139                                                     return false;\r
 140                                                 }\r
 141                                             }\r
 142 \r
 143                                         });\r
 144                                     } catch (DatabaseException e) {}\r
 145                                 }\r
 146 \r
 147                                 if(savedIntoFMU) {\r
 148                                                 data.put("equation", currentText);\r
 149                                                 return;\r
 150                                         }\r
 151                                 }\r
 152                         }\r
 153                 }\r
 154 \r
 155                 // If setting a parameter value was not succesful, use the normal save-method\r
 156                 super.save(expression, data);\r
 157         }\r
 158 \r
 159         public ParameterExpression() {\r
 160                 try {\r
 161                         this.expressionType = SimanticsUI.getSession().syncRequest(new Read<Resource>() {\r
 162 \r
 163                                 @Override\r
 164                                 public Resource perform(ReadGraph graph) throws DatabaseException {\r
 165                                         return SysdynResource.getInstance(graph).ParameterExpression;\r
 166                                 }\r
 167                         });\r
 168                 } catch (DatabaseException e) {\r
 169                         e.printStackTrace();\r
 170                 }\r
 171         }\r
 172 \r
 173 \r
 174 }\r