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