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

   1 package org.simantics.sysdyn.ui.properties.widgets.arrays;\r
   2 \r
   3 import java.util.LinkedHashMap;\r
   4 import java.util.StringTokenizer;\r
   5 \r
   6 import org.eclipse.swt.widgets.Combo;\r
   7 import org.simantics.Simantics;\r
   8 import org.simantics.browsing.ui.swt.widgets.impl.ComboModifyListenerImpl;\r
   9 import org.simantics.browsing.ui.swt.widgets.impl.TrackedModifyEvent;\r
  10 import org.simantics.browsing.ui.swt.widgets.impl.Widget;\r
  11 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
  12 import org.simantics.db.ReadGraph;\r
  13 import org.simantics.db.Resource;\r
  14 import org.simantics.db.Session;\r
  15 import org.simantics.db.VirtualGraph;\r
  16 import org.simantics.db.WriteGraph;\r
  17 import org.simantics.db.common.request.WriteRequest;\r
  18 import org.simantics.db.exception.DatabaseException;\r
  19 import org.simantics.db.management.ISessionContext;\r
  20 import org.simantics.db.request.Read;\r
  21 import org.simantics.db.service.VirtualGraphSupport;\r
  22 import org.simantics.layer0.Layer0;\r
  23 import org.simantics.sysdyn.SysdynResource;\r
  24 import org.simantics.sysdyn.ui.properties.widgets.ArrayExpressionCombo;\r
  25 import org.simantics.sysdyn.ui.properties.widgets.ExpressionWidget;\r
  26 import org.simantics.sysdyn.ui.utils.VariableNameValidator;\r
  27 import org.simantics.utils.ui.ISelectionUtils;\r
  28 \r
  29 /**\r
  30  * Modification listener ONLY for ArrayExpressionCombos in EquationTabs.\r
  31  * @author Teemu Lempinen\r
  32  *\r
  33  */\r
  34 public class NameAndArrayRangeModifyListener extends ComboModifyListenerImpl<Resource> implements Widget {\r
  35 \r
  36         Resource lastExpression; \r
  37         ExpressionWidget expressionWidget;\r
  38         ArrayExpressionCombo arrayExpressionCombo;\r
  39         Object lastInput;\r
  40 \r
  41         public NameAndArrayRangeModifyListener(WidgetSupport support, ExpressionWidget expressionWidget, ArrayExpressionCombo arrayExpressionCombo) {\r
  42                 support.register(this);\r
  43                 this.expressionWidget = expressionWidget;\r
  44                 this.arrayExpressionCombo = arrayExpressionCombo;\r
  45         }\r
  46 \r
  47         @Override\r
  48         public void setInput(ISessionContext context, Object input) {\r
  49                 super.setInput(context, input);\r
  50                 this.lastInput = input;\r
  51         } \r
  52                 \r
  53         @Override\r
  54     public void modifyText(TrackedModifyEvent e) {              \r
  55                 Combo combo = (Combo)e.getWidget();\r
  56                 LinkedHashMap<?, ?> data = (LinkedHashMap<?, ?>) combo.getData();\r
  57                 \r
  58                 Resource activeExpression = null;\r
  59                 try {\r
  60                 final Object input = lastInput;\r
  61                         activeExpression = Simantics.getSession().syncRequest(new Read<Resource>() {\r
  62                                 @Override\r
  63                                 public Resource perform(ReadGraph graph)\r
  64                                                 throws DatabaseException {\r
  65                                         Resource variable = ISelectionUtils.filterSingleSelection(input, Resource.class);\r
  66                                         return graph.getPossibleObject(variable, SysdynResource.getInstance(graph).IndependentVariable_activeExpression);\r
  67                                 }\r
  68                                 \r
  69                         });\r
  70                 } catch (DatabaseException e1) {\r
  71                         e1.printStackTrace();\r
  72                 }\r
  73                 \r
  74 \r
  75                 Resource expression = (Resource) data.get(combo.getText());\r
  76                 if(expression != null) {\r
  77                         lastExpression = expression;\r
  78                         arrayExpressionCombo.setLastSelectedIndex(combo.getSelectionIndex());\r
  79                 } else {\r
  80                         for(Object key : data.keySet()) {\r
  81                                 int index = arrayExpressionCombo.getLastSelectedIndex() < 0 ? 0 : arrayExpressionCombo.getLastSelectedIndex();\r
  82                                 if((Integer)combo.getData((String)key) == index) {\r
  83                                         lastExpression =  (Resource) data.get(key);\r
  84                                         break;\r
  85                                 }\r
  86                         }\r
  87                 }\r
  88                 \r
  89                 // If expression has changed (i.e. user actually selects a different item in the combo), save the previous \r
  90                 if(lastExpression != null && !lastExpression.equals(activeExpression)) {\r
  91                         expressionWidget.save();\r
  92                 }\r
  93 \r
  94                 super.modifyText(e);\r
  95         }\r
  96 \r
  97         @Override\r
  98         public void applyText(WriteGraph graph, final Resource variable, String text)\r
  99                         throws DatabaseException {\r
 100                 StringTokenizer st = new StringTokenizer(text, "[]");\r
 101                 final String newName = st.nextToken();\r
 102                 String range = null;\r
 103                 if(st.hasMoreTokens()) {\r
 104                         range = st.nextToken();\r
 105                 }\r
 106                 String originalName = graph.getRelatedValue(variable, Layer0.getInstance(graph).HasName);\r
 107                 if(!originalName.equals(newName)) {\r
 108                     Resource configuration = graph.getPossibleObject(variable, Layer0.getInstance(graph).PartOf);\r
 109                     new VariableNameValidator().renameInAllEquations(graph, configuration, originalName, newName);\r
 110                         graph.claimLiteral(variable, Layer0.getInstance(graph).HasName, newName);\r
 111                 }\r
 112 \r
 113                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 114 \r
 115                 if(range != null && lastExpression != null) {\r
 116                         String oldRange = graph.getPossibleRelatedValue(lastExpression, sr.Expression_arrayRange);\r
 117                         if(oldRange == null || !range.equals(oldRange)) {\r
 118                                 graph.claimLiteral(lastExpression, sr.Expression_arrayRange, "[" + range + "]");\r
 119                         }\r
 120                 } else if (range == null && lastExpression != null && graph.hasStatement(lastExpression, sr.Expression_arrayRange)) {\r
 121                         graph.deny(lastExpression, sr.Expression_arrayRange);\r
 122                 }\r
 123 \r
 124                 Resource activeExpression = graph.getPossibleObject(variable, sr.IndependentVariable_activeExpression);\r
 125 \r
 126                 if(lastExpression != null && !lastExpression.equals(activeExpression)) {\r
 127                         VirtualGraphSupport support = graph.getService(VirtualGraphSupport.class);\r
 128                         final Session session = graph.getSession();\r
 129                         session.asyncRequest(new WriteRequest(support.getWorkspacePersistent("expressions")) {\r
 130                                 @Override\r
 131                                 public void perform(WriteGraph graph) throws DatabaseException {\r
 132                                         VirtualGraph runtime = graph.getService(VirtualGraph.class);\r
 133                                         session.asyncRequest(new WriteRequest(runtime) {\r
 134                                                 @Override\r
 135                                                 public void perform(WriteGraph graph) throws DatabaseException {\r
 136                                                         SysdynResource sr = SysdynResource.getInstance(graph);\r
 137                                                         if(graph.hasStatement(variable, sr.IndependentVariable_activeExpression))\r
 138                                                                 graph.deny(variable, sr.IndependentVariable_activeExpression);\r
 139                                                         graph.claim(variable, sr.IndependentVariable_activeExpression, lastExpression);\r
 140                                                 }\r
 141                                         });\r
 142                                 }\r
 143                         });\r
 144                 }\r
 145         }\r
 146 \r
 147 }\r