eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/util/TaxonTreeNodeLabelProvider.java

   1 // $Id$
   2 /**
   3  * Copyright (C) 2017 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.util;
  11
  12 import org.eclipse.jface.viewers.ColumnLabelProvider;
  13 import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
  14 import org.eclipse.jface.viewers.StyledString;
  15 import org.eclipse.jface.viewers.StyledString.Styler;
  16 import org.eclipse.swt.graphics.TextStyle;
  17 import org.hibernate.LazyInitializationException;
  18
  19 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  20 import eu.etaxonomy.cdm.model.common.CdmBase;
  21 import eu.etaxonomy.cdm.model.common.IIdentifiableEntity;
  22 import eu.etaxonomy.cdm.model.taxon.Classification;
  23 import eu.etaxonomy.cdm.model.taxon.Taxon;
  24 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  25 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  26 import eu.etaxonomy.taxeditor.preference.Resources;
  27 import eu.etaxonomy.taxeditor.security.RequiredPermissions;
  28 import eu.etaxonomy.taxeditor.store.CdmStore;
  29 import eu.etaxonomy.taxeditor.store.StoreUtil;
  30
  31 /**
  32  * @author pplitzner
  33  * @date 05.09.2017
  34  *
  35  */
  36 public class TaxonTreeNodeLabelProvider extends ColumnLabelProvider
  37 implements IStyledLabelProvider {
  38
  39     private Styler notGrantedStyler = null;
  40
  41     /**
  42      * {@inheritDoc}
  43      */
  44     @Override
  45     public String getText(Object element) {
  46         //classification
  47         if(element instanceof Classification){
  48             String text = ((Classification) element).getName().getText();
  49             return text != null ? text : "Unnamed Taxonomic Tree";
  50         }
  51         //taxon node
  52         else if (element instanceof TaxonNode){
  53             TaxonNode taxonNode = (TaxonNode) HibernateProxyHelper.deproxy(element);
  54
  55             try{
  56                 Taxon taxon = HibernateProxyHelper.deproxy(taxonNode.getTaxon());
  57                 if(taxon == null){
  58                     String text = taxonNode.getClassification().getName() == null ? null : taxonNode.getClassification().getName().getText();
  59                     if(text==null){
  60                         text = taxonNode.getClassification().getTitleCache();
  61                     }
  62                     return text;
  63                 }else{
  64                     try{
  65                         return taxon.getName() != null ? ((IIdentifiableEntity) HibernateProxyHelper.deproxy(taxon.getName())).getTitleCache() : new String();
  66                     }catch(Exception e){
  67                         MessagingUtils.error(getClass(), e);
  68                     }
  69                 }
  70             }catch (LazyInitializationException e){
  71                 MessagingUtils.error(getClass(), e);
  72             }
  73         }
  74         return new String();
  75     }
  76
  77     /**
  78      * {@inheritDoc}
  79      */
  80     @Override
  81     public StyledString getStyledText(Object element) {
  82         //classification
  83         if(element instanceof Classification){
  84             return new StyledString(getText(element), StyledString.DECORATIONS_STYLER);
  85         }
  86         //taxon node
  87         else if(element instanceof TaxonNode){
  88             // determine style base on  user grants
  89             Styler styler = null;
  90             if(!CdmStore.currentAuthentiationHasPermission((CdmBase) element, RequiredPermissions.TAXONNODE_EDIT)){
  91                 styler = getNotGrantedStyler();
  92             }
  93             return new StyledString(getText(element), styler);
  94         }
  95         return new StyledString(getText(element));
  96     }
  97
  98     private Styler getNotGrantedStyler() {
  99         if (notGrantedStyler  == null) {
 100             notGrantedStyler = new Styler() {
 101                 @Override
 102                 public void applyStyles(TextStyle textStyle) {
 103                     textStyle.underline = false;
 104                     textStyle.foreground = StoreUtil.getColor(Resources.COLOR_TEXT_DISABLED);
 105                 }
 106             };
 107         }
 108         return notGrantedStyler;
 109     }
 110 }