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.DefinedTermBase;
  23 import eu.etaxonomy.cdm.model.common.TermBase;
  24 import eu.etaxonomy.cdm.model.common.TermVocabulary;
  25
  26 /**
  27  * @author l.morris
  28  * @date 9 Dec 2011
  29  *
  30  */
  31 public class TermLabelProvider extends StyledCellLabelProvider {
  32
  33         private static Color vocColor = Display.getCurrent().getSystemColor(
  34                         SWT.COLOR_BLUE);
  35         private Styler vocStyler;
  36         /* (non-Javadoc)
  37          * @see org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider#getStyledText(java.lang.Object)
  38          */
  39
  40         /*
  41          * (non-Javadoc)
  42          *
  43          * @see
  44          * org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.
  45          * jface.viewers.ViewerCell)
  46          */
  47         @Override
  48         public void update(ViewerCell cell) {
  49                 Object element = cell.getElement();
  50                 int columnIndex = cell.getColumnIndex();
  51
  52                 String text = getText(element);
  53                 cell.setText(text);
  54
  55                 if (element instanceof TermVocabulary) {
  56                         StyledString styledString = new StyledString(text, getVocabularyStyler());
  57                         StyleRange[] styleRanges;
  58                         styleRanges = styledString.getStyleRanges();
  59                         cell.setStyleRanges(styleRanges);
  60                 }
  61                 super.update(cell);
  62         }
  63
  64         public StyledString getStyledText(Object element) {
  65
  66                 if(element instanceof TermVocabulary){
  67                         new StyledString(getText(element), getVocabularyStyler());
  68                 }
  69                 return  new StyledString(getText(element), StyledString.QUALIFIER_STYLER);
  70         }
  71
  72         /* (non-Javadoc)
  73          * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
  74          */
  75
  76         public String getText(Object element) {
  77
  78             if(element instanceof DefinedTermBase){
  79                 DefinedTermBase<?> dtb = (DefinedTermBase<?>)element;
  80                 if (dtb.getIdInVocabulary() != null && dtb.getIdInVocabulary() != ""){
  81                         return dtb.getIdInVocabulary() + " : " + dtb.getTitleCache();
  82                 } else{
  83                         return dtb.getTitleCache();
  84                }
  85             } else if (element instanceof TermBase){
  86             return ((TermBase)element).getTitleCache();
  87             }
  88
  89                 //FIXME : must throw an exception here
  90                 return element.toString();
  91         }
  92
  93         private Styler getVocabularyStyler() {
  94                 if (vocStyler == null) {
  95                         vocStyler = new Styler() {
  96                                 @Override
  97                                 public void applyStyles(TextStyle textStyle) {
  98                                         textStyle.foreground = vocColor;
  99                                 }
 100                         };
 101                 }
 102                 return vocStyler;
 103         }
 104
 105 }