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