bundles/org.simantics.selectionview/src/org/simantics/selectionview/TypedVariableTabContribution.java

   1 package org.simantics.selectionview;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.Collections;\r
   5 \r
   6 import org.eclipse.swt.SWT;\r
   7 import org.eclipse.swt.widgets.Composite;\r
   8 import org.eclipse.swt.widgets.Event;\r
   9 import org.eclipse.swt.widgets.Listener;\r
  10 import org.eclipse.ui.IWorkbenchSite;\r
  11 import org.simantics.Simantics;\r
  12 import org.simantics.databoard.Bindings;\r
  13 import org.simantics.db.ReadGraph;\r
  14 import org.simantics.db.Resource;\r
  15 import org.simantics.db.common.utils.Functions;\r
  16 import org.simantics.db.common.utils.Logger;\r
  17 import org.simantics.db.exception.DatabaseException;\r
  18 import org.simantics.db.layer0.variable.Variable;\r
  19 import org.simantics.layer0.Layer0;\r
  20 import org.simantics.ui.selection.WorkbenchSelectionUtils;\r
  21 import org.simantics.views.swt.SWTViewLoaderProcess;\r
  22 import org.simantics.views.swt.client.base.SWTRoot;\r
  23 \r
  24 public class TypedVariableTabContribution implements TabContribution<Object> {\r
  25 \r
  26         final private Resource configuration;\r
  27         \r
  28         public TypedVariableTabContribution(ReadGraph graph, Resource configuration) throws DatabaseException {\r
  29                 this.configuration = configuration;\r
  30         }\r
  31         \r
  32         static class Contribution extends ModelledTabContributor {\r
  33 \r
  34                 private String viewURI;\r
  35                 \r
  36                 public Contribution(String viewURI) {\r
  37                         this.viewURI = viewURI;\r
  38                 }\r
  39                 \r
  40                 @Override\r
  41                 public void createControls(Composite body, IWorkbenchSite site) {\r
  42 \r
  43                         try {\r
  44 \r
  45                                 final SWTViewLoaderProcess loader = new SWTViewLoaderProcess(null, site);\r
  46                                 final SWTRoot root = loader.load(viewURI, runtime);\r
  47                                 root.createControls(body);\r
  48                                 body.addListener(SWT.Dispose, new Listener() {\r
  49                                         \r
  50                                         @Override\r
  51                                         public void handleEvent(Event event) {\r
  52                                                 if(!loader.isDisposed())\r
  53                                                         loader.dispose();\r
  54                                         }\r
  55                                         \r
  56                                 });\r
  57                                 \r
  58                         } catch (DatabaseException e) {\r
  59 \r
  60                                 e.printStackTrace();\r
  61                                 Logger.defaultLogError(e);\r
  62 \r
  63                         }\r
  64 \r
  65                 }\r
  66                 \r
  67             @Override\r
  68             public boolean equals(Object obj) {\r
  69                 if (this == obj)\r
  70                     return true;\r
  71                 else if (obj == null)\r
  72                     return false;\r
  73                 else if (!(obj instanceof Contribution))\r
  74                     return false;\r
  75                 Contribution c = (Contribution)obj;\r
  76                 return viewURI.equals(c.viewURI);\r
  77             }\r
  78             \r
  79             @Override\r
  80             public int hashCode() {\r
  81                 return viewURI.hashCode();\r
  82             }\r
  83                 \r
  84         }\r
  85         \r
  86 \r
  87         @Override\r
  88         public boolean accept(ReadGraph graph, Object input) {\r
  89                 return true;\r
  90 //              return (input instanceof Variable);\r
  91         }\r
  92         \r
  93         private Variable getPossibleVariable(ReadGraph graph, Object input) throws DatabaseException {\r
  94 \r
  95                 if(input instanceof Variable) {\r
  96                         return (Variable)input;\r
  97                 } else {\r
  98                         return WorkbenchSelectionUtils.getPossibleVariable(graph, input);\r
  99                 }\r
 100                 \r
 101         }\r
 102         \r
 103         @Override\r
 104         public void contribute(ReadGraph graph, final Object object, Collection<ComparableTabContributor> result) throws DatabaseException {\r
 105                 \r
 106                 Variable variable = getPossibleVariable(graph, object);\r
 107                 if(variable == null) return;\r
 108                 \r
 109                 Layer0 L0 = Layer0.getInstance(graph);\r
 110                 SelectionViewResources SEL = SelectionViewResources.getInstance(graph);\r
 111                 Collection<Resource> types = graph.getObjects(configuration, SEL.TypedVariableTabContribution_HasType);\r
 112                 if(types.isEmpty()) throw new DatabaseException("No type for " + graph.getPossibleURI(configuration));\r
 113                 Resource view = graph.getPossibleObject(configuration, SEL.VariableTabContribution_HasView);\r
 114                 if(view == null) {\r
 115                         throw new DatabaseException("No view for " + graph.getPossibleURI(configuration));\r
 116                 }\r
 117                 Integer priority = graph.getPossibleRelatedValue(configuration, SEL.VariableTabContribution_HasPriority, Bindings.INTEGER);\r
 118                 String label = graph.getPossibleRelatedValue(configuration, L0.HasLabel);\r
 119                 final String viewURI = graph.getPossibleURI(view);\r
 120 \r
 121         Resource resource = variable.getPossibleRepresents(graph);\r
 122         if (resource == null)\r
 123             return;\r
 124 \r
 125         Collection<Resource> ts = graph.getTypes(resource);\r
 126         \r
 127         if (!Collections.disjoint(types, ts)) {\r
 128 \r
 129                 for(Resource r : graph.getObjects(configuration, SEL.VariableTabContribution_HasTest)) {\r
 130                         Boolean pass = Functions.exec(graph, r, graph, variable);\r
 131                         if(!pass) return;\r
 132                 }\r
 133                 \r
 134                 try {\r
 135                         Variable transformed = Simantics.tryInvokeSCL(graph, configuration, SEL.VariableTabContribution_transformation, variable);\r
 136                         if(transformed != null) variable = transformed;\r
 137                 } catch (DatabaseException e) {\r
 138                         // Errors are just ignored\r
 139                 }\r
 140                 \r
 141                 result.add(new ComparableTabContributor(new Contribution(viewURI), priority, variable, label));\r
 142 \r
 143         }\r
 144 \r
 145         }\r
 146 \r
 147 }\r