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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 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 import java.util.Arrays;\r
  15 import java.util.List;\r
  16 import java.util.Map;\r
  17 \r
  18 import org.eclipse.jface.layout.GridDataFactory;\r
  19 import org.eclipse.jface.layout.GridLayoutFactory;\r
  20 import org.eclipse.jface.text.BadLocationException;\r
  21 import org.eclipse.jface.text.IDocument;\r
  22 import org.eclipse.swt.SWT;\r
  23 import org.eclipse.swt.custom.VerifyKeyListener;\r
  24 import org.eclipse.swt.events.FocusListener;\r
  25 import org.eclipse.swt.events.KeyListener;\r
  26 import org.eclipse.swt.events.ModifyListener;\r
  27 import org.eclipse.swt.graphics.Point;\r
  28 import org.eclipse.swt.widgets.Composite;\r
  29 import org.eclipse.swt.widgets.Label;\r
  30 import org.eclipse.swt.widgets.Table;\r
  31 import org.eclipse.swt.widgets.Text;\r
  32 import org.simantics.db.ReadGraph;\r
  33 import org.simantics.db.Resource;\r
  34 import org.simantics.db.WriteGraph;\r
  35 import org.simantics.db.common.request.WriteRequest;\r
  36 import org.simantics.db.common.utils.OrderedSetUtils;\r
  37 import org.simantics.db.exception.DatabaseException;\r
  38 import org.simantics.db.request.Read;\r
  39 import org.simantics.layer0.Layer0;\r
  40 import org.simantics.sysdyn.SysdynResource;\r
  41 import org.simantics.sysdyn.manager.SysdynModel;\r
  42 import org.simantics.sysdyn.manager.SysdynModelManager;\r
  43 import org.simantics.sysdyn.representation.Stock;\r
  44 import org.simantics.sysdyn.representation.Valve;\r
  45 import org.simantics.ui.SimanticsUI;\r
  46 \r
  47 public class StockExpression implements IExpression {\r
  48 \r
  49     private Text integral;\r
  50     private ExpressionField expression;\r
  51 \r
  52     @Override\r
  53     public void createExpressionFields(Composite parent, Map<String, Object> data, Table allowedVariables) {\r
  54         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(parent);\r
  55         String initialEquation = data.get("initialEquation") != null ? (String)data.get("initialEquation") : "";\r
  56         String integralEquation = data.get("integral") != null ? (String)data.get("integral") : "";\r
  57 \r
  58 \r
  59         Label label = new Label(parent, SWT.NONE);\r
  60         label.setText("Integral");\r
  61 \r
  62         integral = new Text(parent, SWT.MULTI | SWT.V_SCROLL | SWT.BORDER);\r
  63         integral.setEditable(false);\r
  64         integral.setText(integralEquation);\r
  65         GridDataFactory.fillDefaults().grab(true, true).applyTo(integral);\r
  66 \r
  67 \r
  68         label = new Label(parent, SWT.NONE);\r
  69         label.setText("Initial\nValue");\r
  70 \r
  71         expression = new ExpressionField(parent, SWT.BORDER, allowedVariables, true);\r
  72         expression.setExpression(initialEquation);\r
  73 \r
  74         GridDataFactory.fillDefaults().grab(true, true).applyTo(expression);\r
  75 \r
  76     }\r
  77 \r
  78     @Override\r
  79     public void focus() {\r
  80         this.expression.focus();\r
  81     }\r
  82 \r
  83     @Override\r
  84     public List<ExpressionField> getExpressionFields() {\r
  85         return Arrays.asList(this.expression);\r
  86     }\r
  87 \r
  88     @Override\r
  89     public void readData(final Resource expression, Map<String, Object> data) {\r
  90         String initialEquation = null;\r
  91 \r
  92         if (expression != null && data.get("initialEquation") == null) {\r
  93             try {\r
  94                 initialEquation = SimanticsUI.getSession().syncRequest(new Read<String>() {\r
  95 \r
  96                     @Override\r
  97                     public String perform(ReadGraph graph) throws DatabaseException {\r
  98                         SysdynResource sr = SysdynResource.getInstance(graph);\r
  99                         if (graph.isInstanceOf(expression, sr.StockExpression)) {\r
 100                             String initialEquation = graph.getPossibleRelatedValue(expression, sr.StockExpression_initialEquation);\r
 101                             return initialEquation != null ? initialEquation : "";\r
 102                         } else {\r
 103                             return "";\r
 104                         }\r
 105                     }\r
 106 \r
 107                 });\r
 108             } catch (DatabaseException e1) {\r
 109                 e1.printStackTrace();\r
 110             }\r
 111             data.put("initialEquation", initialEquation);\r
 112         }\r
 113 \r
 114         data.put("integral", getIntegral(expression));\r
 115 \r
 116     }\r
 117 \r
 118     @Override\r
 119     public void replaceSelection(String var) {\r
 120         if(expression != null) {\r
 121             IDocument doc = expression.getDocument();\r
 122             try {\r
 123                 Point selection = expression.getSelection();\r
 124                 doc.replace(selection.x, selection.y, var);\r
 125                 expression.setSelection(selection.x + var.length());\r
 126             } catch (BadLocationException e) {\r
 127                 e.printStackTrace();\r
 128             }\r
 129         }\r
 130     }\r
 131 \r
 132     @Override\r
 133     public void save(final Resource expression, Map<String, Object> data) {\r
 134         final String currentText = this.expression.getExpression();\r
 135         if(currentText != null) {\r
 136             SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 137 \r
 138                 @Override\r
 139                 public void perform(WriteGraph g)\r
 140                 throws DatabaseException {\r
 141                     SysdynResource sr = SysdynResource.getInstance(g);\r
 142                     Layer0 l0 = Layer0.getInstance(g);\r
 143                     \r
 144                     if(!g.isInstanceOf(expression, sr.StockExpression)) {\r
 145                         Resource expressionList = g.getSingleObject(expression, l0.HasNext);\r
 146                         Resource temp = g.newResource();\r
 147                         OrderedSetUtils.replace(g, expressionList, expression, temp);\r
 148                         for(Resource predicate : g.getPredicates(expression)) {\r
 149                                 g.deny(expression, predicate);\r
 150                         }\r
 151                         g.claim(expression, l0.InstanceOf, null, sr.StockExpression);\r
 152                         \r
 153                         Resource variable = g.getSingleObject(expressionList, sr.Variable_expressions_Inverse);\r
 154                         OrderedSetUtils.replace(g, expressionList, temp, expression);\r
 155                         g.deny(expression, l0.PartOf);\r
 156                         g.claim(expression, l0.PartOf, variable);\r
 157                     }\r
 158                     g.claimLiteral(expression, sr.StockExpression_initialEquation, currentText);\r
 159                 }\r
 160 \r
 161             });\r
 162         }\r
 163         this.expression.setExpression(currentText);\r
 164     }\r
 165 \r
 166     @Override\r
 167     public void updateData(Map<String, Object> data) {\r
 168         if(this.expression != null && this.expression.getExpression() != null)\r
 169             data.put("initialEquation", this.expression.getExpression());\r
 170         if(this.integral != null && this.integral.getText() != null)\r
 171             data.put("integral", this.integral.getText());\r
 172     }\r
 173 \r
 174 \r
 175     private String getIntegral(final Resource expression) {\r
 176         \r
 177         String integral = "";\r
 178         if(expression == null)\r
 179                 return integral;\r
 180         try {\r
 181             integral = SimanticsUI.getSession().syncRequest(new Read<String>() {\r
 182 \r
 183                 @Override\r
 184                 public String perform(ReadGraph graph) throws DatabaseException {\r
 185                     SysdynResource sr = SysdynResource.getInstance(graph);\r
 186                     Layer0 l0 = Layer0.getInstance(graph);\r
 187                     \r
 188                     // find the variable\r
 189                     Resource expressionList = OrderedSetUtils.getSingleOwnerList(graph, expression);\r
 190                     Resource variable = graph.getPossibleObject(expressionList, sr.Variable_expressions_Inverse);\r
 191                     if(variable == null)\r
 192                         return "";\r
 193                     \r
 194                         SysdynModelManager sdm = SysdynModelManager.getInstance(graph.getSession());\r
 195                         SysdynModel model = sdm.getModel(graph, graph.getSingleObject(variable, l0.PartOf));\r
 196                         model.update(graph);\r
 197                         \r
 198                         Stock stock = (Stock)model.getElement(variable);\r
 199                     \r
 200                         String range = graph.getPossibleRelatedValue(expression, sr.Expression_arrayRange);\r
 201                         if(range == null)\r
 202                                 range = "";\r
 203 \r
 204                     StringBuilder builder = new StringBuilder();\r
 205                     builder.append("");\r
 206                     for(Valve in : stock.getIncomingValves()) {\r
 207                         builder.append(" + " + in.getName() + range);\r
 208                     }\r
 209                     for(Valve out : stock.getOutgoingValves()) {\r
 210                         builder.append(" - " + out.getName() + range);\r
 211                     }\r
 212                     if (builder.indexOf(" + ") == 0)\r
 213                         builder.delete(0, 3);\r
 214                     \r
 215                     return builder.toString().trim();\r
 216                 }\r
 217 \r
 218             });\r
 219         } catch (DatabaseException e) {\r
 220             e.printStackTrace();\r
 221         }\r
 222         return integral;\r
 223     }\r
 224 \r
 225     @Override\r
 226     public void addKeyListener(KeyListener listener) {\r
 227         this.expression.getSourceViewer().getTextWidget().addKeyListener(listener);\r
 228 \r
 229     }\r
 230 \r
 231     @Override\r
 232     public void addModifyListener(ModifyListener listener) {\r
 233         this.expression.getSourceViewer().getTextWidget().addModifyListener(listener);\r
 234 \r
 235     }\r
 236 \r
 237     @Override\r
 238     public void addFocusListener(FocusListener listener) {\r
 239         this.expression.getSourceViewer().getTextWidget().addFocusListener(listener);\r
 240     }\r
 241     \r
 242         @Override\r
 243         public void addVerifyKeyListener(VerifyKeyListener listener) {\r
 244                 this.expression.getSourceViewer().getTextWidget().addVerifyKeyListener(listener);\r
 245         }\r
 246 \r
 247 }\r