eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/editor/definedterm/TermLabelProvider.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2009 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.editor.definedterm;
  11
  12 import org.eclipse.jface.viewers.StyledCellLabelProvider;
  13 import org.eclipse.jface.viewers.StyledString;
  14 import org.eclipse.jface.viewers.StyledString.Styler;
  15 import org.eclipse.jface.viewers.ViewerCell;
  16 import org.eclipse.swt.SWT;
  17 import org.eclipse.swt.custom.StyleRange;
  18 import org.eclipse.swt.graphics.Color;
  19 import org.eclipse.swt.graphics.TextStyle;
  20 import org.eclipse.swt.widgets.Display;
  21
  22 import eu.etaxonomy.cdm.model.common.TermBase;
  23 import eu.etaxonomy.cdm.model.common.TermVocabulary;
  24
  25 /**
  26  * @author l.morris
  27  * @date 9 Dec 2011
  28  *
  29  */
  30 public class TermLabelProvider extends StyledCellLabelProvider {
  31
  32         private static Color vocColor = Display.getCurrent().getSystemColor(
  33                         SWT.COLOR_BLUE);
  34         private Styler vocStyler;
  35         /* (non-Javadoc)
  36          * @see org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider#getStyledText(java.lang.Object)
  37          */
  38
  39         /*
  40          * (non-Javadoc)
  41          *
  42          * @see
  43          * org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.
  44          * jface.viewers.ViewerCell)
  45          */
  46         @Override
  47         public void update(ViewerCell cell) {
  48                 Object element = cell.getElement();
  49                 int columnIndex = cell.getColumnIndex();
  50
  51                 String text = getText(element);
  52                 cell.setText(text);
  53
  54                 if (element instanceof TermVocabulary) {
  55                         StyledString styledString = new StyledString(text, getVocabularyStyler());
  56                         StyleRange[] styleRanges;
  57                         styleRanges = styledString.getStyleRanges();
  58                         cell.setStyleRanges(styleRanges);
  59                 }
  60                 super.update(cell);
  61         }
  62
  63         public StyledString getStyledText(Object element) {
  64
  65                 if(element instanceof TermVocabulary){
  66                         new StyledString(getText(element), getVocabularyStyler());
  67                 }
  68                 return  new StyledString(getText(element), StyledString.QUALIFIER_STYLER);
  69         }
  70
  71         /* (non-Javadoc)
  72          * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
  73          */
  74
  75         public String getText(Object element) {
  76
  77                 if (element instanceof TermBase){
  78                         return ((TermBase)element).getTitleCache();
  79                 }
  80                 //FIXME : must throw an exception here
  81                 return element.toString();
  82         }
  83
  84         private Styler getVocabularyStyler() {
  85                 if (vocStyler == null) {
  86                         vocStyler = new Styler() {
  87                                 @Override
  88                                 public void applyStyles(TextStyle textStyle) {
  89                                         textStyle.foreground = vocColor;
  90                                 }
  91                         };
  92                 }
  93                 return vocStyler;
  94         }
  95
  96 }