eu.esdihumboldt.hale.ui.codelist.inspire.internal.CodeListLabelProvider.java Source code

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Here is the source code for eu.esdihumboldt.hale.ui.codelist.inspire.internal.CodeListLabelProvider.java

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/*
 * Copyright (c) 2012 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.ui.codelist.inspire.internal;

import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.plugin.AbstractUIPlugin;

import eu.esdihumboldt.hale.common.inspire.codelists.CodeListRef;

/**
 * Label provider for {@link CodeListRef}s.
 * 
 * @author Simon Templer
 */
public class CodeListLabelProvider extends StyledCellLabelProvider implements ILabelProvider {

    private final Image defImage = AbstractUIPlugin
            .imageDescriptorFromPlugin("eu.esdihumboldt.hale.ui.codelist.inspire", "icons/inspire.gif")
            .createImage();
    private final Image categoryImage = PlatformUI.getWorkbench().getSharedImages()
            .getImage(ISharedImages.IMG_OBJ_FOLDER);

    @Override
    public void update(ViewerCell cell) {
        Object element = cell.getElement();

        StyledString text;

        if (element instanceof CodeListRef) {
            CodeListRef cl = (CodeListRef) element;

            text = new StyledString(cl.getName());

            String schema = cl.getSchemaName();
            if (schema != null) {
                text.append(" (" + schema + ")", StyledString.COUNTER_STYLER);
            }
            //
            //         String tag = cl.getTag();
            //         if (tag != null) {
            //            text.append(" (" + tag + ")", StyledString.DECORATIONS_STYLER);
            //         }
        } else {
            text = new StyledString(getText(element));
        }

        cell.setImage(getImage(element));
        cell.setText(text.toString());
        cell.setStyleRanges(text.getStyleRanges());

        super.update(cell);
    }

    @Override
    public Image getImage(Object element) {
        if (element instanceof CodeListRef) {
            return defImage;
        }

        if (element instanceof String) {
            return categoryImage;
        }

        return null;
    }

    @Override
    public String getText(Object element) {
        if (element instanceof CodeListRef) {
            CodeListRef cl = (CodeListRef) element;
            // code list, schema and theme names for search
            return cl.getName() + " " + cl.getSchemaName() + " " + cl.getThemeName();
        }

        return element.toString();
    }

    @Override
    public void dispose() {
        defImage.dispose();

        super.dispose();
    }

}