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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2014 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.FocusAdapter;\r
  25 import org.eclipse.swt.events.FocusEvent;\r
  26 import org.eclipse.swt.events.FocusListener;\r
  27 import org.eclipse.swt.events.KeyListener;\r
  28 import org.eclipse.swt.events.ModifyListener;\r
  29 import org.eclipse.swt.graphics.Point;\r
  30 import org.eclipse.swt.widgets.Button;\r
  31 import org.eclipse.swt.widgets.Composite;\r
  32 import org.eclipse.swt.widgets.Event;\r
  33 import org.eclipse.swt.widgets.Label;\r
  34 import org.eclipse.swt.widgets.Listener;\r
  35 import org.eclipse.swt.widgets.Table;\r
  36 import org.simantics.db.ReadGraph;\r
  37 import org.simantics.db.Resource;\r
  38 import org.simantics.db.WriteGraph;\r
  39 import org.simantics.db.common.request.WriteRequest;\r
  40 import org.simantics.db.common.utils.ListUtils;\r
  41 import org.simantics.db.exception.DatabaseException;\r
  42 import org.simantics.db.layer0.util.RemoverUtil;\r
  43 import org.simantics.db.request.Read;\r
  44 import org.simantics.layer0.Layer0;\r
  45 import org.simantics.sysdyn.SysdynResource;\r
  46 import org.simantics.sysdyn.manager.SysdynModel;\r
  47 import org.simantics.sysdyn.manager.SysdynModelManager;\r
  48 import org.simantics.sysdyn.representation.Stock;\r
  49 import org.simantics.sysdyn.representation.Valve;\r
  50 import org.simantics.ui.SimanticsUI;\r
  51 import org.simantics.utils.datastructures.Pair;\r
  52 \r
  53 public class StockExpression implements IExpression {\r
  54 \r
  55     private final ExpressionWidgetInput input;\r
  56     private ExpressionField integralExpression, initialExpression;\r
  57     private ExpressionField lastSelectedText;\r
  58     \r
  59     public StockExpression(ExpressionWidgetInput input) {\r
  60         this.input = input;\r
  61     }\r
  62     \r
  63     @Override\r
  64     public void createExpressionFields(Composite parent, Map<String, Object> data, Table allowedVariables) {\r
  65         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(parent);\r
  66         String initialEquation = data.get("initialEquation") != null ? (String)data.get("initialEquation") : "";\r
  67         String integralEquation = data.get("integral") != null ? (String)data.get("integral") : getDefaultIntegral(input.expression);\r
  68 \r
  69 \r
  70         Label label = new Label(parent, SWT.NONE);\r
  71         label.setText("Integral");\r
  72 \r
  73         Composite integralComposite = new Composite(parent, SWT.NONE);\r
  74         GridDataFactory.fillDefaults().grab(true, true).applyTo(integralComposite);\r
  75         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(integralComposite);\r
  76         \r
  77         integralExpression = new ExpressionField(integralComposite, SWT.BORDER, allowedVariables, true, input);\r
  78         integralExpression.setExpression(integralEquation);\r
  79         GridDataFactory.fillDefaults().grab(true, true).applyTo(integralExpression);\r
  80         integralExpression.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
  81 \r
  82             @Override\r
  83             public void focusLost(FocusEvent e) {\r
  84                 lastSelectedText = integralExpression;\r
  85             }\r
  86         });\r
  87         \r
  88         Button defaultButton = new Button(integralComposite, SWT.PUSH);\r
  89         defaultButton.setText("Use default");\r
  90         defaultButton.addListener(SWT.Selection, new Listener() {\r
  91 \r
  92                 @Override\r
  93                 public void handleEvent(Event event) {\r
  94                         switch (event.type) {\r
  95                         case SWT.Selection:\r
  96                                 StockExpression.this.integralExpression.setExpression(getDefaultIntegral(input.expression));\r
  97                                 SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
  98 \r
  99                                         @Override\r
 100                                         public void perform(WriteGraph graph)\r
 101                                                         throws DatabaseException {\r
 102                                                 // Delete the possible integral expression from the database to note \r
 103                                                 // that we are in the "default" mode.\r
 104                                                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 105                                                 graph.deny(input.expression, sr.StockExpression_useCustomIntegral);\r
 106                                                 graph.claimLiteral(input.expression, sr.StockExpression_integralEquation, getDefaultIntegral(graph, input.expression));\r
 107                                         }\r
 108                                 });\r
 109                                 break;\r
 110                         }\r
 111                 }\r
 112 \r
 113         });\r
 114 \r
 115         label = new Label(parent, SWT.NONE);\r
 116         label.setText("Initial\nValue");\r
 117 \r
 118         initialExpression = new ExpressionField(parent, SWT.BORDER, allowedVariables, true, input);\r
 119         initialExpression.setExpression(initialEquation);\r
 120         GridDataFactory.fillDefaults().grab(true, true).applyTo(initialExpression);\r
 121         initialExpression.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
 122 \r
 123             @Override\r
 124             public void focusLost(FocusEvent e) {\r
 125                 lastSelectedText = initialExpression;\r
 126             }\r
 127         });\r
 128 \r
 129         lastSelectedText = initialExpression;\r
 130     }\r
 131 \r
 132     @Override\r
 133     public void focus() {\r
 134         this.lastSelectedText.focus();\r
 135     }\r
 136 \r
 137     @Override\r
 138     public List<ExpressionField> getExpressionFields() {\r
 139         return Arrays.asList(this.integralExpression, this.initialExpression);\r
 140     }\r
 141 \r
 142     @Override\r
 143     public void readData(final Resource expression, Map<String, Object> data) {\r
 144         Pair<String, String> equations = null;\r
 145         if (expression != null && data.get("initialEquation") == null) {\r
 146                 try {\r
 147                     equations = SimanticsUI.getSession().syncRequest(new Read<Pair<String, String>>() {\r
 148         \r
 149                         @Override\r
 150                         public Pair<String, String> perform(ReadGraph graph) throws DatabaseException {\r
 151                             SysdynResource sr = SysdynResource.getInstance(graph);\r
 152                             if (graph.isInstanceOf(expression, sr.StockExpression)) {\r
 153                                 String initialEquation = graph.getPossibleRelatedValue(expression, sr.StockExpression_initialEquation);\r
 154                                 String integralEquation = graph.getPossibleRelatedValue(expression, sr.StockExpression_integralEquation);\r
 155                                 initialEquation = (initialEquation != null) ? initialEquation : "";\r
 156                                 return new Pair<String, String>(integralEquation, initialEquation);\r
 157                             } else {\r
 158                                 return new Pair<String, String>(null, "");\r
 159                             }\r
 160                         }\r
 161         \r
 162                     });\r
 163                 } catch (DatabaseException e1) {\r
 164                     e1.printStackTrace();\r
 165                 }\r
 166                 data.put("initialEquation", equations.second);\r
 167         }\r
 168 \r
 169         if (equations.first == null) {\r
 170                 try {\r
 171                                 SimanticsUI.getSession().syncRequest(new WriteRequest() {\r
 172 \r
 173                                         @Override\r
 174                                         public void perform(WriteGraph graph) throws DatabaseException {\r
 175                                                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 176                                         graph.claimLiteral(input.expression, sr.StockExpression_integralEquation, getDefaultIntegral(graph, input.expression));\r
 177                                         }\r
 178 \r
 179                                 });\r
 180                         } catch (DatabaseException e) {\r
 181                                 // TODO Auto-generated catch block\r
 182                                 e.printStackTrace();\r
 183                         }\r
 184                 \r
 185                 data.put("integral", getDefaultIntegral(expression));\r
 186         } else {\r
 187                 data.put("integral", equations.first);\r
 188         }\r
 189 \r
 190     }\r
 191 \r
 192     @Override\r
 193     public void replaceSelection(String var) {\r
 194         if(lastSelectedText != null) {\r
 195             IDocument doc = lastSelectedText.getDocument();\r
 196             try {\r
 197                 Point selection = lastSelectedText.getSelection();\r
 198                 doc.replace(selection.x, selection.y, var);\r
 199                 lastSelectedText.setSelection(selection.x + var.length());\r
 200             } catch (BadLocationException e) {\r
 201                 e.printStackTrace();\r
 202             }\r
 203         }\r
 204     }\r
 205 \r
 206     @Override\r
 207     public void save(final Resource expression, final Map<String, Object> data) {\r
 208         final String currentInitial = this.initialExpression.getExpression();\r
 209         final String currentIntegral = this.integralExpression.getExpression();\r
 210         if (currentIntegral == null) {\r
 211                 this.integralExpression.setExpression(getDefaultIntegral(expression));\r
 212         }\r
 213         if(!currentInitial.equals(data.get("initialEquation"))\r
 214                         || currentIntegral == null\r
 215                         || !currentIntegral.equals(data.get("integral"))) {\r
 216             SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 217 \r
 218                 @Override\r
 219                 public void perform(WriteGraph g)\r
 220                 throws DatabaseException {\r
 221                     SysdynResource sr = SysdynResource.getInstance(g);\r
 222                     Layer0 l0 = Layer0.getInstance(g);\r
 223                     \r
 224                     if(!g.isInstanceOf(expression, sr.StockExpression)) {\r
 225                         Resource variable = g.getPossibleObject(expression, l0.PartOf);\r
 226                         Resource expressionList = g.getPossibleObject(variable, sr.Variable_expressionList);\r
 227                         Resource temp = g.newResource();\r
 228                         ListUtils.replace(g, expressionList, expression, temp);\r
 229                         \r
 230                         for(Resource predicate : g.getPredicates(expression)) {\r
 231                             g.deny(expression, predicate);\r
 232                         }\r
 233                         g.claim(expression, l0.InstanceOf, null, sr.StockExpression);\r
 234 \r
 235                         ListUtils.replace(g, expressionList, temp, expression);\r
 236 \r
 237                         RemoverUtil.remove(g, temp);\r
 238 \r
 239                         g.claim(expression, l0.PartOf, variable);\r
 240                     }\r
 241                     g.claimLiteral(expression, sr.StockExpression_initialEquation, currentInitial);\r
 242                     \r
 243                     if (!currentIntegral.equals(data.get("integral"))) {\r
 244                         // If the value is not same as default, enable the custom tag\r
 245                         g.claim(expression, sr.StockExpression_useCustomIntegral, expression);\r
 246                     }\r
 247                     g.claimLiteral(expression, sr.StockExpression_integralEquation, currentIntegral);\r
 248                 }\r
 249 \r
 250             });\r
 251         }\r
 252         this.initialExpression.setExpression(currentInitial);\r
 253         this.integralExpression.setExpression(currentIntegral);\r
 254     }\r
 255 \r
 256     @Override\r
 257     public void updateData(Map<String, Object> data) {\r
 258         if(this.initialExpression != null && this.initialExpression.getExpression() != null)\r
 259             data.put("initialEquation", this.initialExpression.getExpression());\r
 260         if(this.integralExpression != null && this.integralExpression.getExpression() != null)\r
 261             data.put("integral", this.integralExpression.getExpression());\r
 262     }\r
 263 \r
 264     \r
 265     private static String getDefaultIntegral(ReadGraph graph, Resource expression) throws DatabaseException {\r
 266         SysdynResource sr = SysdynResource.getInstance(graph);\r
 267         Layer0 l0 = Layer0.getInstance(graph);\r
 268     \r
 269             // find the variable\r
 270             Resource variable = graph.getPossibleObject(expression, l0.PartOf);\r
 271             if(variable == null)\r
 272                 return "";\r
 273             \r
 274                 SysdynModelManager sdm = SysdynModelManager.getInstance(graph.getSession());\r
 275                 SysdynModel model = sdm.getModel(graph, graph.getSingleObject(variable, l0.PartOf));\r
 276                 model.update(graph);\r
 277                 \r
 278                 Stock stock = (Stock)model.getElement(variable);\r
 279             \r
 280                 String range = graph.getPossibleRelatedValue(expression, sr.Expression_arrayRange);\r
 281                 if(range == null)\r
 282                         range = "";\r
 283         \r
 284             StringBuilder builder = new StringBuilder();\r
 285             builder.append("");\r
 286             for(Valve in : stock.getIncomingValves()) {\r
 287                 builder.append(" + " + in.getName() + range);\r
 288             }\r
 289             for(Valve out : stock.getOutgoingValves()) {\r
 290                 builder.append(" - " + out.getName() + range);\r
 291             }\r
 292             if (builder.indexOf(" + ") == 0)\r
 293                 builder.delete(0, 3);\r
 294             \r
 295             return builder.toString().trim();   \r
 296     }\r
 297     \r
 298     \r
 299     private static String getDefaultIntegral(final Resource expression) {\r
 300         \r
 301         String integral = "";\r
 302         if(expression == null)\r
 303                 return integral;\r
 304         try {\r
 305             integral = SimanticsUI.getSession().syncRequest(new Read<String>() {\r
 306 \r
 307                 @Override\r
 308                 public String perform(ReadGraph graph) throws DatabaseException {\r
 309                         return getDefaultIntegral(graph, expression);\r
 310                 }\r
 311 \r
 312             });\r
 313         } catch (DatabaseException e) {\r
 314             e.printStackTrace();\r
 315         }\r
 316         return integral;\r
 317     }\r
 318 \r
 319     @Override\r
 320     public void addKeyListener(KeyListener listener) {\r
 321         this.initialExpression.getSourceViewer().getTextWidget().addKeyListener(listener);\r
 322         this.integralExpression.getSourceViewer().getTextWidget().addKeyListener(listener);\r
 323 \r
 324     }\r
 325 \r
 326     @Override\r
 327     public void addModifyListener(ModifyListener listener) {\r
 328         this.initialExpression.getSourceViewer().getTextWidget().addModifyListener(listener);\r
 329         this.integralExpression.getSourceViewer().getTextWidget().addModifyListener(listener);\r
 330 \r
 331     }\r
 332 \r
 333     @Override\r
 334     public void addFocusListener(FocusListener listener) {\r
 335         this.initialExpression.getSourceViewer().getTextWidget().addFocusListener(listener);\r
 336         this.integralExpression.getSourceViewer().getTextWidget().addFocusListener(listener);\r
 337     }\r
 338     \r
 339         @Override\r
 340         public void addVerifyKeyListener(VerifyKeyListener listener) {\r
 341                 this.initialExpression.getSourceViewer().getTextWidget().addVerifyKeyListener(listener);\r
 342                 this.integralExpression.getSourceViewer().getTextWidget().addVerifyKeyListener(listener);\r
 343         }\r
 344 \r
 345 }\r