taxeditor-bulkeditor/src/main/java/eu/etaxonomy/taxeditor/bulkeditor/BulkEditorViewerConfiguration.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.bulkeditor;
  11
  12 import java.util.Iterator;
  13
  14 import org.apache.log4j.Logger;
  15 import org.eclipse.jface.text.IDocument;
  16 import org.eclipse.jface.text.IRegion;
  17 import org.eclipse.jface.text.TextPresentation;
  18 import org.eclipse.jface.text.presentation.IPresentationReconciler;
  19 import org.eclipse.jface.text.presentation.PresentationReconciler;
  20 import org.eclipse.jface.text.source.ISourceViewer;
  21 import org.eclipse.jface.text.source.SourceViewerConfiguration;
  22 import org.eclipse.swt.SWT;
  23 import org.eclipse.swt.custom.StyleRange;
  24
  25 import eu.etaxonomy.taxeditor.annotatedlineeditor.ILineDisplayStrategy;
  26 import eu.etaxonomy.taxeditor.annotatedlineeditor.LineAnnotation;
  27 import eu.etaxonomy.taxeditor.annotatedlineeditor.LineAnnotationModel;
  28
  29
  30 /**
  31  * @author p.ciardelli
  32  * @created 25.06.2009
  33  * @version 1.0
  34  */
  35 public class BulkEditorViewerConfiguration extends SourceViewerConfiguration {
  36         private static final Logger logger = Logger
  37                         .getLogger(BulkEditorViewerConfiguration.class);
  38
  39         private ILineDisplayStrategy lineDisplayStrategy;
  40
  41         /**
  42          * @param lineDisplayStrategy
  43          */
  44         public BulkEditorViewerConfiguration(
  45                         ILineDisplayStrategy lineDisplayStrategy) {
  46                 this.lineDisplayStrategy = lineDisplayStrategy;
  47         }
  48
  49         /* (non-Javadoc)
  50          * @see org.eclipse.jface.text.source.SourceViewerConfiguration#getPresentationReconciler(org.eclipse.jface.text.source.ISourceViewer)
  51          */
  52         @Override
  53         public IPresentationReconciler getPresentationReconciler(
  54                         final ISourceViewer sourceViewer) {
  55                 return new PresentationReconciler() {
  56                         /* (non-Javadoc)
  57                          * @see org.eclipse.jface.text.presentation.PresentationReconciler#createPresentation(org.eclipse.jface.text.IRegion, org.eclipse.jface.text.IDocument)
  58                          */
  59                         @Override
  60                         protected TextPresentation createPresentation(IRegion damage,
  61                                         IDocument document) {
  62
  63                                 TextPresentation presentation = super.createPresentation(damage, document);
  64                                 LineAnnotationModel model = (LineAnnotationModel) sourceViewer.getAnnotationModel();
  65
  66                                 // Update all annotated lines in the damage zone
  67                                 Iterator iter = model.getAnnotationIterator(damage.getOffset(), damage.getLength() + 1, true, true);
  68                                 while (iter.hasNext()) {
  69                                         Object next = iter.next();
  70                                         if (next instanceof LineAnnotation) {
  71                                                 for (StyleRange styleRange : lineDisplayStrategy.getTextStyleRanges(((LineAnnotation) next).getEntity())) {
  72                                                         styleRange.start += model.getPosition((LineAnnotation) next).getOffset();
  73                                                         presentation.addStyleRange(styleRange);
  74                                                 }
  75                                         }
  76                                 }
  77
  78                                 return presentation;
  79                         }
  80                 };
  81         }
  82
  83 }