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