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