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.preference.Resources;
  29 import eu.etaxonomy.taxeditor.security.RequiredPermissions;
  30 import eu.etaxonomy.taxeditor.store.CdmStore;
  31 import eu.etaxonomy.taxeditor.store.StoreUtil;
  32
  33 /**
  34  * <p>TaxonNodeLabelProvider class.</p>
  35  *
  36  * @author p.ciardelli
  37  * @created 04.06.2009
  38  */
  39 public class TaxonNodeLabelProvider extends ColumnLabelProvider
  40                 implements ILabelProvider, IDescriptionProvider, IStyledLabelProvider {
  41
  42
  43         private Styler notGrantedStyler = null;
  44
  45         /** {@inheritDoc} */
  46         @Override
  47         public Image getImage(Object element) {
  48                 return null;
  49         }
  50
  51         /** {@inheritDoc} */
  52         @Override
  53         public String getText(Object element) {
  54                 if (element instanceof TaxonNode){
  55                         TaxonNode taxonNode = (TaxonNode) HibernateProxyHelper.deproxy(element);
  56
  57                         try{
  58                                 Taxon taxon = (Taxon) HibernateProxyHelper.deproxy(taxonNode.getTaxon());
  59                                 if(taxon == null){
  60                                         MessagingUtils.error(getClass(), "The taxon node does not have a taxon attached to it. Please check your import. TaxonNode: " + element, null);
  61 //                                      throw new RuntimeException("The data your are trying to view is corrupt. Please check your import.");
  62                                 }else{
  63                                         try{
  64                                                 return taxon.getName() != null ? ((IIdentifiableEntity) HibernateProxyHelper.deproxy(taxon.getName())).getTitleCache() : new String();
  65                                         }catch(Exception e){
  66                                                 MessagingUtils.error(getClass(), e);
  67                                         }
  68                                 }
  69                         }catch (LazyInitializationException e){
  70                                 MessagingUtils.error(getClass(), e);
  71                         }
  72
  73                 }
  74                 return new String();
  75         }
  76
  77         /** {@inheritDoc} */
  78         @Override
  79     public String getDescription(Object anElement) {
  80                 if (anElement instanceof TaxonNode) {
  81                         Taxon data = ((TaxonNode) anElement).getTaxon();
  82                         return "Taxon: " + (data != null ? data.getTitleCache() : ">NO TAXON<");
  83                 }
  84                 return null;
  85         }
  86
  87         /** {@inheritDoc} */
  88         @Override
  89     public StyledString getStyledText(Object element) {
  90                 // determine style base on  user grants
  91                 Styler styler = null;
  92                 if(!CdmStore.currentAuthentiationHasPermission((CdmBase) element, RequiredPermissions.TAXONNODE_EDIT)){
  93                         styler = getNotGrantedStyler();
  94                 }
  95                 return new StyledString(getText(element), styler);
  96
  97         }
  98
  99         /**
 100          * @return
 101          */
 102         private Styler getNotGrantedStyler() {
 103                 if (notGrantedStyler  == null) {
 104                         notGrantedStyler = new Styler() {
 105                                 @Override
 106                                 public void applyStyles(TextStyle textStyle) {
 107                                         textStyle.underline = false;
 108                                         textStyle.foreground = StoreUtil.getColor(Resources.COLOR_TEXT_DISABLED);
 109                                 }
 110                         };
 111                 }
 112                 return notGrantedStyler;
 113         }
 114 }