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.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
  13 import org.eclipse.jface.viewers.StyledString.Styler;
  14 import org.eclipse.jface.viewers.LabelProvider;
  15 import org.eclipse.jface.viewers.StyledCellLabelProvider;
  16 import org.eclipse.jface.viewers.StyledString;
  17 import org.eclipse.jface.viewers.ViewerCell;
  18 import org.eclipse.swt.SWT;
  19 import org.eclipse.swt.custom.StyleRange;
  20 import org.eclipse.swt.graphics.Color;
  21 import org.eclipse.swt.graphics.TextStyle;
  22 import org.eclipse.swt.widgets.Display;
  23
  24 import eu.etaxonomy.cdm.model.common.DefinedTermBase;
  25 import eu.etaxonomy.cdm.model.common.TermBase;
  26 import eu.etaxonomy.cdm.model.common.TermVocabulary;
  27 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  28
  29 /**
  30  * @author l.morris
  31  * @date 9 Dec 2011
  32  *
  33  */
  34 public class TermLabelProvider extends StyledCellLabelProvider {
  35
  36         private static Color vocColor = Display.getCurrent().getSystemColor(
  37                         SWT.COLOR_BLUE);
  38         private Styler vocStyler;
  39         /* (non-Javadoc)
  40          * @see org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider#getStyledText(java.lang.Object)
  41          */
  42
  43         /*
  44          * (non-Javadoc)
  45          *
  46          * @see
  47          * org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.
  48          * jface.viewers.ViewerCell)
  49          */
  50         @Override
  51         public void update(ViewerCell cell) {
  52                 Object element = cell.getElement();
  53                 int columnIndex = cell.getColumnIndex();
  54
  55                 String text = getText(element);
  56                 cell.setText(text);
  57
  58                 if (element instanceof TermVocabulary) {
  59                         StyledString styledString = new StyledString(text, getVocabularyStyler());
  60                         StyleRange[] styleRanges;
  61                         styleRanges = styledString.getStyleRanges();
  62                         cell.setStyleRanges(styleRanges);
  63                 }
  64                 super.update(cell);
  65         }
  66
  67         public StyledString getStyledText(Object element) {
  68
  69                 if(element instanceof TermVocabulary){
  70                         new StyledString(getText(element), getVocabularyStyler());
  71                 }
  72                 return  new StyledString(getText(element), StyledString.QUALIFIER_STYLER);
  73         }
  74
  75         /* (non-Javadoc)
  76          * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
  77          */
  78
  79         public String getText(Object element) {
  80
  81                 if (element instanceof TermBase){
  82                         return ((TermBase)element).getTitleCache();
  83                 }
  84                 //FIXME : must throw an exception here
  85                 return element.toString();
  86         }
  87
  88         private Styler getVocabularyStyler() {
  89                 if (vocStyler == null) {
  90                         vocStyler = new Styler() {
  91                                 @Override
  92                                 public void applyStyles(TextStyle textStyle) {
  93                                         textStyle.foreground = vocColor;
  94                                 }
  95                         };
  96                 }
  97                 return vocStyler;
  98         }
  99
 100 }