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.cdm.persistence.dto.TaxonNodeDto;
  26 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  27 import eu.etaxonomy.taxeditor.preference.Resources;
  28 import eu.etaxonomy.taxeditor.security.RequiredPermissions;
  29 import eu.etaxonomy.taxeditor.store.CdmStore;
  30 import eu.etaxonomy.taxeditor.store.StoreUtil;
  31
  32 /**
  33  * @author pplitzner
  34  * @date 05.09.2017
  35  *
  36  */
  37 public class TaxonTreeNodeLabelProvider extends ColumnLabelProvider
  38 implements IStyledLabelProvider {
  39
  40     protected Styler notGrantedStyler = null;
  41
  42     /**
  43      * {@inheritDoc}
  44      */
  45     @Override
  46     public String getText(Object element) {
  47         //classification
  48         if(element instanceof Classification){
  49             String text = ((Classification) element).getName().getText();
  50             return text != null ? text : "Unnamed Taxonomic Tree";
  51         }
  52         //taxon node
  53         else if (element instanceof TaxonNode){
  54             TaxonNode taxonNode = (TaxonNode) HibernateProxyHelper.deproxy(element);
  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                         String text= "";
  66                             if (taxonNode.isUnplaced()){
  67                                 text += Character.toString((char)63) + " ";
  68                             }
  69                             if (taxonNode.isExcluded()){
  70                                 text +=Character.toString((char)248) + " ";
  71                             }
  72                         text += taxon.getName() != null ? ((IIdentifiableEntity) HibernateProxyHelper.deproxy(taxon.getName())).getTitleCache() : new String();
  73                         return text;
  74                     }catch(Exception e){
  75                         MessagingUtils.error(getClass(), e);
  76                     }
  77                 }
  78             }catch (LazyInitializationException e){
  79                 MessagingUtils.error(getClass(), e);
  80             }
  81         }
  82         else if (element instanceof TaxonNodeDto){
  83             TaxonNodeDto taxonNode = (TaxonNodeDto) element;
  84             String text= "";
  85             if (taxonNode.isUnplaced()){
  86                 text += Character.toString((char)63) + " ";
  87             }
  88             if (taxonNode.isExcluded()) {
  89                 text +=Character.toString((char)248) + " ";
  90             }
  91             text += taxonNode.getTitleCache();
  92             return text;
  93         }
  94         return new String();
  95     }
  96
  97     /**
  98      * {@inheritDoc}
  99      */
 100     @Override
 101     public StyledString getStyledText(Object element) {
 102         //classification
 103         if(element instanceof Classification){
 104             return new StyledString(getText(element), StyledString.DECORATIONS_STYLER);
 105         }
 106         //taxon node
 107         else if(element instanceof TaxonNode){
 108             // determine style base on  user grants
 109             Styler styler = null;
 110             if(!CdmStore.currentAuthentiationHasPermission((CdmBase) element, RequiredPermissions.TAXONNODE_EDIT)){
 111                 styler = getNotGrantedStyler();
 112             }
 113             return new StyledString(getText(element), styler);
 114         }
 115         return new StyledString(getText(element));
 116     }
 117
 118     private Styler getNotGrantedStyler() {
 119         if (notGrantedStyler  == null) {
 120             notGrantedStyler = new Styler() {
 121                 @Override
 122                 public void applyStyles(TextStyle textStyle) {
 123                     textStyle.underline = false;
 124                     textStyle.foreground = StoreUtil.getColor(Resources.COLOR_TEXT_DISABLED);
 125                 }
 126             };
 127         }
 128         return notGrantedStyler;
 129     }
 130 }