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 java.util.ArrayList;
  13
  14 import org.apache.commons.lang.StringUtils;
  15 import org.eclipse.jface.viewers.StyledCellLabelProvider;
  16 import org.eclipse.jface.viewers.StyledString;
  17 import org.eclipse.jface.viewers.StyledString.Styler;
  18 import org.eclipse.jface.viewers.ViewerCell;
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.custom.StyleRange;
  21 import org.eclipse.swt.graphics.Color;
  22 import org.eclipse.swt.graphics.TextStyle;
  23 import org.eclipse.swt.widgets.Display;
  24
  25 import eu.etaxonomy.cdm.common.CdmUtils;
  26 import eu.etaxonomy.cdm.model.common.DefinedTermBase;
  27 import eu.etaxonomy.cdm.model.common.Language;
  28 import eu.etaxonomy.cdm.model.common.Representation;
  29 import eu.etaxonomy.cdm.model.common.TermBase;
  30 import eu.etaxonomy.cdm.model.common.TermVocabulary;
  31 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  32
  33 /**
  34  * @author l.morris
  35  * @date 9 Dec 2011
  36  *
  37  */
  38 public class TermLabelProvider extends StyledCellLabelProvider {
  39
  40     private static Color vocColor = Display.getCurrent().getSystemColor(SWT.COLOR_BLUE);
  41     private Styler vocStyler;
  42
  43     public TermLabelProvider() {
  44     }
  45
  46     public TermLabelProvider(Styler vocStyler){
  47         this.vocStyler = vocStyler;
  48     }
  49
  50     /*
  51      * (non-Javadoc)
  52      *
  53      * @see
  54      * org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.
  55      * jface.viewers.ViewerCell)
  56      */
  57     @Override
  58     public void update(ViewerCell cell) {
  59         Object element = cell.getElement();
  60         int columnIndex = cell.getColumnIndex();
  61
  62         String text = getText(element);
  63         cell.setText(text);
  64
  65         if (element instanceof TermVocabulary) {
  66             StyledString styledString = new StyledString(text, getVocabularyStyler());
  67             StyleRange[] styleRanges;
  68             styleRanges = styledString.getStyleRanges();
  69             cell.setStyleRanges(styleRanges);
  70         }
  71         super.update(cell);
  72     }
  73
  74     public StyledString getStyledText(Object element) {
  75
  76         if (element instanceof TermVocabulary) {
  77             new StyledString(getText(element), getVocabularyStyler());
  78         }
  79         return new StyledString(getText(element), StyledString.QUALIFIER_STYLER);
  80     }
  81
  82     public String getText(Object element) {
  83
  84         if (element instanceof DefinedTermBase) {
  85             DefinedTermBase<?> dtb = (DefinedTermBase<?>) element;
  86
  87             Representation rep = dtb.getRepresentation(PreferencesUtil.getGlobalLanguage());
  88             if ( rep == null){
  89                 rep = dtb.getPreferredRepresentation(new ArrayList<Language>());
  90             }
  91             String label = rep != null? rep.getLabel() : dtb.getTitleCache();
  92             return CdmUtils.concat(" : ", dtb.getIdInVocabulary(), label);
  93
  94         } else if (element instanceof TermBase) {
  95             return ((TermBase) element).getTitleCache();
  96         }
  97
  98         // FIXME : must throw an exception here
  99         return element.toString();
 100     }
 101
 102     private Styler getVocabularyStyler() {
 103         if (vocStyler == null) {
 104             vocStyler = new Styler() {
 105                 @Override
 106                 public void applyStyles(TextStyle textStyle) {
 107                     textStyle.foreground = vocColor;
 108                 }
 109             };
 110         }
 111         return vocStyler;
 112     }
 113
 114 }