eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNodeLabelProvider.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.navigation.navigator;
  11
  12 import org.eclipse.jface.viewers.ColumnLabelProvider;
  13 import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
  14 import org.eclipse.jface.viewers.ILabelProvider;
  15 import org.eclipse.jface.viewers.StyledString;
  16 import org.eclipse.jface.viewers.StyledString.Styler;
  17 import org.eclipse.swt.graphics.Image;
  18 import org.eclipse.swt.graphics.TextStyle;
  19 import org.eclipse.ui.navigator.IDescriptionProvider;
  20 import org.hibernate.LazyInitializationException;
  21
  22 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  23 import eu.etaxonomy.cdm.model.common.CdmBase;
  24 import eu.etaxonomy.cdm.model.common.IIdentifiableEntity;
  25 import eu.etaxonomy.cdm.model.taxon.Taxon;
  26 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  27 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  28 import eu.etaxonomy.taxeditor.navigation.l10n.Messages;
  29 import eu.etaxonomy.taxeditor.preference.Resources;
  30 import eu.etaxonomy.taxeditor.security.RequiredPermissions;
  31 import eu.etaxonomy.taxeditor.store.CdmStore;
  32 import eu.etaxonomy.taxeditor.store.StoreUtil;
  33
  34 /**
  35  * <p>TaxonNodeLabelProvider class.</p>
  36  *
  37  * @author p.ciardelli
  38  * @created 04.06.2009
  39  */
  40 public class TaxonNodeLabelProvider extends ColumnLabelProvider
  41                 implements ILabelProvider, IDescriptionProvider, IStyledLabelProvider {
  42
  43
  44         private Styler notGrantedStyler = null;
  45
  46         /** {@inheritDoc} */
  47         @Override
  48         public Image getImage(Object element) {
  49                 return null;
  50         }
  51
  52         /** {@inheritDoc} */
  53         @Override
  54         public String getText(Object element) {
  55                 if (element instanceof TaxonNode){
  56                         TaxonNode taxonNode = (TaxonNode) HibernateProxyHelper.deproxy(element);
  57
  58                         try{
  59                                 Taxon taxon = HibernateProxyHelper.deproxy(taxonNode.getTaxon());
  60                                 if(taxon == null){
  61                                     String text = taxonNode.getClassification().getName().getText();
  62                                         if(text==null){
  63                                             text = taxonNode.getClassification().getTitleCache();
  64                                         }
  65                     return text;
  66                                         //MessagingUtils.error(getClass(), String.format(Messages.TaxonNodeLabelProvider_NODE_WITH_NO_TAXON, element), null);
  67 //                                      throw new RuntimeException("The data your are trying to view is corrupt. Please check your import.");
  68                                 }else{
  69                                         try{
  70                                                 return taxon.getName() != null ? ((IIdentifiableEntity) HibernateProxyHelper.deproxy(taxon.getName())).getTitleCache() : new String();
  71                                         }catch(Exception e){
  72                                                 MessagingUtils.error(getClass(), e);
  73                                         }
  74                                 }
  75                         }catch (LazyInitializationException e){
  76                                 MessagingUtils.error(getClass(), e);
  77                         }
  78
  79                 }
  80                 return new String();
  81         }
  82
  83         /** {@inheritDoc} */
  84         @Override
  85     public String getDescription(Object anElement) {
  86                 if (anElement instanceof TaxonNode) {
  87                         Taxon data = ((TaxonNode) anElement).getTaxon();
  88                         String text =  (data != null ? Messages.TaxonNodeLabelProvider_TAXON + data.getTitleCache() : Messages.TaxonNodeLabelProvider_CLASSIFICATION + ((TaxonNode)anElement).getClassification().getTitleCache());
  89
  90                         return text;
  91                 }
  92                 return null;
  93         }
  94
  95         /** {@inheritDoc} */
  96         @Override
  97     public StyledString getStyledText(Object element) {
  98                 // determine style base on  user grants
  99                 Styler styler = null;
 100                 if(!CdmStore.currentAuthentiationHasPermission((CdmBase) element, RequiredPermissions.TAXONNODE_EDIT)){
 101                         styler = getNotGrantedStyler();
 102                 }
 103                 return new StyledString(getText(element), styler);
 104         }
 105
 106         /**
 107          * @return
 108          */
 109         private Styler getNotGrantedStyler() {
 110                 if (notGrantedStyler  == null) {
 111                         notGrantedStyler = new Styler() {
 112                                 @Override
 113                                 public void applyStyles(TextStyle textStyle) {
 114                                         textStyle.underline = false;
 115                                         textStyle.foreground = StoreUtil.getColor(Resources.COLOR_TEXT_DISABLED);
 116                                 }
 117                         };
 118                 }
 119                 return notGrantedStyler;
 120         }
 121 }