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

   1 /**
   2  * Copyright (C) 2017 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 package eu.etaxonomy.taxeditor.util;
  10
  11 import org.eclipse.jface.viewers.ColumnLabelProvider;
  12 import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
  13 import org.eclipse.jface.viewers.StyledString;
  14 import org.eclipse.jface.viewers.StyledString.Styler;
  15 import org.eclipse.swt.graphics.TextStyle;
  16 import org.hibernate.LazyInitializationException;
  17
  18 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  19 import eu.etaxonomy.cdm.model.common.CdmBase;
  20 import eu.etaxonomy.cdm.model.taxon.Classification;
  21 import eu.etaxonomy.cdm.model.taxon.Taxon;
  22 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  23 import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDto;
  24 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  25 import eu.etaxonomy.taxeditor.preference.Resources;
  26 import eu.etaxonomy.taxeditor.security.RequiredPermissions;
  27 import eu.etaxonomy.taxeditor.store.CdmStore;
  28 import eu.etaxonomy.taxeditor.store.StoreUtil;
  29
  30 /**
  31  * @author pplitzner
  32  * @date 05.09.2017
  33  */
  34 public class TaxonTreeNodeLabelProvider
  35         extends ColumnLabelProvider
  36         implements IStyledLabelProvider {
  37
  38     protected Styler notGrantedStyler = null;
  39
  40     @Override
  41     public String getText(Object element) {
  42         //classification
  43         if(element instanceof Classification){
  44             String text = ((Classification) element).getName().getText();
  45             return text != null ? text : "Unnamed Classification";
  46         }
  47         //taxon node
  48         else if (element instanceof TaxonNode){
  49             TaxonNode taxonNode = (TaxonNode) HibernateProxyHelper.deproxy(element);
  50           try{
  51                 Taxon taxon = HibernateProxyHelper.deproxy(taxonNode.getTaxon());
  52                 if(taxon == null){
  53                     String text = taxonNode.getClassification().getName() == null ? null : taxonNode.getClassification().getName().getText();
  54                     if(text==null){
  55                         text = taxonNode.getClassification().getTitleCache();
  56                     }
  57                     return text;
  58                 }else{
  59                     try{
  60                         String text = "";
  61                         if (taxonNode.getStatus() != null){
  62                             text = taxonNode.getStatus().getSymbol() + " ";
  63                         }
  64                         if (taxonNode.getTaxon() != null && !taxonNode.getTaxon().isPublish()) {
  65                             text = text + "\\u20ac";
  66                         }
  67                         text += taxon.getName() != null ? taxon.getName().getTitleCache() : "";
  68                         return text;
  69                     }catch(Exception e){
  70                         MessagingUtils.error(getClass(), e);
  71                     }
  72                 }
  73             }catch (LazyInitializationException e){
  74                 MessagingUtils.error(getClass(), e);
  75             }
  76         }
  77         else if (element instanceof TaxonNodeDto){
  78             TaxonNodeDto taxonNode = (TaxonNodeDto) element;
  79             String text= "";
  80             if (taxonNode.getStatus() != null){
  81                 text = taxonNode.getStatus().getSymbol() + " ";
  82             }
  83             if (!taxonNode.isPublish() ) {
  84                 text = text + "\u26D4 ";
  85             }
  86             //TODO if symbols contain non-ASCII this may create problems
  87             //     if so we may use ASCII like text +=Character.toString((char)248) + " ";
  88
  89             text += taxonNode.getTitleCache();
  90             return text;
  91         }
  92         return new String();
  93     }
  94
  95     @Override
  96     public StyledString getStyledText(Object element) {
  97         //classification
  98         if(element instanceof Classification){
  99             return new StyledString(getText(element), StyledString.DECORATIONS_STYLER);
 100         }
 101         //taxon node
 102         else if(element instanceof TaxonNode){
 103             // determine style base on  user grants
 104             Styler styler = null;
 105             if(!CdmStore.currentAuthentiationHasPermission((CdmBase) element, RequiredPermissions.TAXONNODE_EDIT)){
 106                 styler = getNotGrantedStyler();
 107             }
 108             return new StyledString(getText(element), styler);
 109         }
 110         return new StyledString(getText(element));
 111     }
 112
 113     private Styler getNotGrantedStyler() {
 114         if (notGrantedStyler  == null) {
 115             notGrantedStyler = new Styler() {
 116                 @Override
 117                 public void applyStyles(TextStyle textStyle) {
 118                     textStyle.underline = false;
 119                     textStyle.foreground = StoreUtil.getColor(Resources.COLOR_TEXT_DISABLED);
 120                 }
 121             };
 122         }
 123         return notGrantedStyler;
 124     }
 125
 126 }