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

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