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