bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/contribution/IssueImageDecorationRule.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.issues.ui.contribution;
  13
  14 import java.util.HashSet;
  15 import java.util.Set;
  16
  17 import org.eclipse.jface.resource.ImageDescriptor;
  18 import org.eclipse.jface.viewers.IDecoration;
  19 import org.simantics.browsing.ui.content.ImageDecorator;
  20 import org.simantics.browsing.ui.model.imagedecorators.ImageDecorationRule;
  21 import org.simantics.db.ReadGraph;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.issues.Severity;
  25 import org.simantics.issues.common.MaxIssueSeverityRecursive;
  26 import org.simantics.issues.ontology.IssueResource;
  27 import org.simantics.issues.ui.internal.Activator;
  28 import org.simantics.layer0.Layer0;
  29 import org.simantics.utils.ui.gfx.DecorationOverlayIcon;
  30
  31 /**
  32  * @author Tuukka Lehtonen
  33  */
  34 public class IssueImageDecorationRule implements ImageDecorationRule {
  35
  36     Set<Resource> typesToSearch;
  37
  38     /**
  39      * @param graph
  40      * @param typesToSearch URIs of types to recurse into while searching for
  41      *        issues
  42      * @throws DatabaseException
  43      */
  44     public IssueImageDecorationRule(ReadGraph graph, String typeToSearch) throws DatabaseException {
  45         this(graph, new String[] { typeToSearch });
  46     }
  47
  48     /**
  49      * @param graph
  50      * @param typesToSearch URIs of types to recurse into while searching for
  51      *        issues
  52      * @throws DatabaseException
  53      */
  54     public IssueImageDecorationRule(ReadGraph graph, String type1, String type2) throws DatabaseException {
  55         this(graph, new String[] { type1, type2});
  56     }
  57
  58     /**
  59      * @param graph
  60      * @param typesToSearch URIs of types to recurse into while searching for
  61      *        issues
  62      * @throws DatabaseException
  63      */
  64     public IssueImageDecorationRule(ReadGraph graph, String... typesToSearch) throws DatabaseException {
  65         this.typesToSearch = new HashSet<Resource>(typesToSearch.length);
  66         for (String uri : typesToSearch)
  67             this.typesToSearch.add(graph.getResource(uri));
  68     }
  69
  70     @Override
  71     public boolean isCompatible(Class<?> contentType) {
  72         return contentType.equals(Resource.class);
  73     }
  74
  75     @Override
  76     public ImageDecorator getImageDecorator(ReadGraph graph, Object content) throws DatabaseException {
  77         Resource r = (Resource) content;
  78
  79         // Make sure IssueResource service is initialized.
  80         Layer0 L0 = Layer0.getInstance(graph);
  81         IssueResource.getInstance(graph);
  82
  83         //Severity maxSeverity = graph.syncRequest(new MaxIssueSeveritySingle(r));
  84         //System.out.println("calculate maxSeverity(" + NameUtils.getSafeName(graph, r, true) + ")");
  85         Severity maxSeverity = graph.syncRequest(new MaxIssueSeverityRecursive(r, L0.ConsistsOf, typesToSearch));
  86         //System.out.println("maxSeverity(" + NameUtils.getSafeName(graph, r, true) + "): " + maxSeverity);
  87         if (maxSeverity == null)
  88             return null;
  89
  90         final Severity severity = maxSeverity;
  91         return new ImageDecorator() {
  92             @SuppressWarnings("unchecked")
  93             @Override
  94             public <Image> Image decorateImage(Image image, String column, int itemIndex) {
  95                 return (Image) getDecoration((ImageDescriptor) image, severity);
  96             }
  97         };
  98     }
  99
 100     private ImageDescriptor getDecoration(ImageDescriptor original, Severity severity) {
 101         ImageDescriptor img = Activator.getDefault().getImageRegistry().getDescriptor(severity.toString());
 102         return (original == null || original.getImageData() == null) ? img
 103                 : new DecorationOverlayIcon(original, img, IDecoration.BOTTOM_LEFT);
 104     }
 105
 106 }