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/**
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* Copyright (C) 2009 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.definedterm;
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import java.util.ArrayList;
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import org.eclipse.jface.viewers.StyledCellLabelProvider;
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import org.eclipse.jface.viewers.StyledString;
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import org.eclipse.jface.viewers.StyledString.Styler;
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import org.eclipse.jface.viewers.ViewerCell;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.custom.StyleRange;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.TextStyle;
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import org.eclipse.swt.widgets.Display;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.model.common.DefinedTermBase;
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import eu.etaxonomy.cdm.model.common.Language;
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import eu.etaxonomy.cdm.model.common.Representation;
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import eu.etaxonomy.cdm.model.common.TermBase;
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import eu.etaxonomy.cdm.model.common.TermVocabulary;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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/**
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* @author l.morris
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* @date 9 Dec 2011
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*
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*/
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public class TermLabelProvider extends StyledCellLabelProvider {
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private static Color vocColor = Display.getCurrent().getSystemColor(SWT.COLOR_BLUE);
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private static Color kindOfColor = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GRAY);
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private Styler vocStyler;
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private Styler kindOfStyler;
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public TermLabelProvider() {
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}
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public TermLabelProvider(Styler vocStyler){
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this.vocStyler = vocStyler;
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}
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@Override
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public void update(ViewerCell cell) {
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Object element = cell.getElement();
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String text = getText(element);
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cell.setText(text);
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Styler styler = null;
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if (element instanceof TermVocabulary && text != null) {
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styler = getVocabularyStyler();
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}
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else if(element instanceof DefinedTermBase && ((DefinedTermBase) element).getKindOf()!=null){
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styler = getKindOfStyler();
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}
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if(styler!=null){
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StyledString styledString = new StyledString(text, styler);
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StyleRange[] styleRanges;
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styleRanges = styledString.getStyleRanges();
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cell.setStyleRanges(styleRanges);
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}
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super.update(cell);
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}
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// public StyledString getStyledText(Object element) {
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// if (element instanceof TermVocabulary) {
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// new StyledString(getText(element), getVocabularyStyler());
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// }
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// else if (element instanceof DefinedTermBase && ((DefinedTermBase) element).getKindOf()!=null) {
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// new StyledString(getText(element), getKindOfStyler());
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// }
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// return new StyledString(getText(element), StyledString.QUALIFIER_STYLER);
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// }
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public String getText(Object element) {
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String label = null;
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if(element instanceof TermBase){
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TermBase termBase = (TermBase)element;
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Representation rep = termBase.getRepresentation(PreferencesUtil.getGlobalLanguage());
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if (rep == null){
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rep = termBase.getPreferredRepresentation(new ArrayList<Language>());
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}
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label = rep != null? rep.getLabel() : termBase.generateTitle();
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if (element instanceof DefinedTermBase && label!=null) {
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DefinedTermBase<?> dtb = (DefinedTermBase<?>) element;
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label = CdmUtils.concat(" : ", dtb.getIdInVocabulary(), label);
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}
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if(label==null){
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label = ((TermBase) element).generateTitle();
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}
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}
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// FIXME : must throw an exception here
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if(label==null){
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label = element.toString();
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}
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return label;
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}
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protected Styler getVocabularyStyler() {
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if (vocStyler == null) {
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vocStyler = new Styler() {
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@Override
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public void applyStyles(TextStyle textStyle) {
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textStyle.foreground = vocColor;
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}
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};
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}
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return vocStyler;
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}
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protected Styler getKindOfStyler() {
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if (kindOfStyler == null) {
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kindOfStyler = new Styler() {
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@Override
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public void applyStyles(TextStyle textStyle) {
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textStyle.foreground = kindOfColor;
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}
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};
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}
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return kindOfStyler;
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}
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}
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