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

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.taxeditor.navigation.navigator;
  12
  13 import org.apache.log4j.Logger;
  14 import org.eclipse.jface.viewers.ColumnLabelProvider;
  15 import org.eclipse.jface.viewers.ILabelProvider;
  16 import org.eclipse.jface.viewers.StyledString;
  17 import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
  18 import org.eclipse.jface.viewers.StyledString.Styler;
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.graphics.Image;
  21 import org.eclipse.swt.graphics.TextStyle;
  22 import org.eclipse.ui.navigator.IDescriptionProvider;
  23 import org.hibernate.LazyInitializationException;
  24
  25 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  26 import eu.etaxonomy.cdm.model.common.CdmBase;
  27 import eu.etaxonomy.cdm.model.common.IIdentifiableEntity;
  28 import eu.etaxonomy.cdm.model.taxon.Taxon;
  29 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  30 import eu.etaxonomy.cdm.persistence.hibernate.permission.Operation;
  31 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  32 import eu.etaxonomy.taxeditor.preference.Resources;
  33 import eu.etaxonomy.taxeditor.security.RequiredPermissions;
  34 import eu.etaxonomy.taxeditor.store.CdmStore;
  35 import eu.etaxonomy.taxeditor.store.StoreUtil;
  36
  37 /**
  38  * <p>TaxonNodeLabelProvider class.</p>
  39  *
  40  * @author p.ciardelli
  41  * @created 04.06.2009
  42  * @version 1.0
  43  */
  44 public class TaxonNodeLabelProvider extends ColumnLabelProvider
  45                 implements ILabelProvider, IDescriptionProvider, IStyledLabelProvider {
  46
  47
  48         private Styler notGrantedStyler = null;
  49
  50         /** {@inheritDoc} */
  51         @Override
  52         public Image getImage(Object element) {
  53                 return null;
  54         }
  55
  56         /** {@inheritDoc} */
  57         @Override
  58         public String getText(Object element) {
  59                 if (element instanceof TaxonNode){
  60                         TaxonNode taxonNode = (TaxonNode) HibernateProxyHelper.deproxy(element);
  61
  62                         try{
  63                                 Taxon taxon = (Taxon) HibernateProxyHelper.deproxy(taxonNode.getTaxon());
  64                                 if(taxon == null){
  65                                         NavigationUtil.error(getClass(), "The taxon node does not have a taxon attached to it. Please check your import. TaxonNode: " + element, null);
  66 //                                      throw new RuntimeException("The data your are trying to view is corrupt. Please check your import.");
  67                                 }else{
  68                                         try{
  69                                                 return taxon.getName() != null ? ((IIdentifiableEntity) HibernateProxyHelper.deproxy(taxon.getName())).getTitleCache() : new String();
  70                                         }catch(Exception e){
  71                                                 NavigationUtil.error(getClass(), e);
  72                                         }
  73                                 }
  74                         }catch (LazyInitializationException e){
  75                                 NavigationUtil.error(getClass(), e);
  76                         }
  77
  78                 }
  79                 return new String();
  80         }
  81
  82         /* (non-Javadoc)
  83          * @see org.eclipse.ui.navigator.IDescriptionProvider#getDescription(java.lang.Object)
  84          */
  85         /** {@inheritDoc} */
  86         public String getDescription(Object anElement) {
  87                 if (anElement instanceof TaxonNode) {
  88                         Taxon data = ((TaxonNode) anElement).getTaxon();
  89                         return "Taxon: " + data.getTitleCache(); //$NON-NLS-1$
  90                 }
  91                 return null;
  92         }
  93
  94         /* (non-Javadoc)
  95          * @see org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider#getStyledText(java.lang.Object)
  96          */
  97         /** {@inheritDoc} */
  98         public StyledString getStyledText(Object element) {
  99                 // determine style base on  user grants
 100                 Styler styler = null;
 101                 if(!CdmStore.currentAuthentiationHasPermission((CdmBase)element, RequiredPermissions.TAXONNODE_EDIT)){
 102                         styler = getNotGrantedStyler();
 103                 }
 104                 return new StyledString(getText(element), styler);
 105
 106         }
 107
 108         /**
 109          * @return
 110          */
 111         private Styler getNotGrantedStyler() {
 112                 if (notGrantedStyler  == null) {
 113                         notGrantedStyler = new Styler() {
 114                                 @Override
 115                                 public void applyStyles(TextStyle textStyle) {
 116                                         textStyle.underline = false;
 117                                         textStyle.foreground = StoreUtil.getColor(Resources.COLOR_TEXT_DISABLED);
 118                                 }
 119                         };
 120                 }
 121                 return notGrantedStyler;
 122         }
 123 }