org.kalypso.ogc.gml.featureview.control.FeatureTabItem.java Source code

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Here is the source code for org.kalypso.ogc.gml.featureview.control.FeatureTabItem.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 *
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 *
 *  and
 *
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact:
 *
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *
 *  ---------------------------------------------------------------------------*/
package org.kalypso.ogc.gml.featureview.control;

import org.apache.commons.lang3.StringUtils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.widgets.Control;
import org.kalypso.commons.command.ICommand;
import org.kalypso.gmlschema.annotation.IAnnotation;
import org.kalypso.ogc.gml.command.DeleteFeatureCommand;
import org.kalypso.ogc.gml.featureview.maker.IFeatureviewFactory;
import org.kalypso.ogc.gml.selection.IFeatureSelectionManager;
import org.kalypsodeegree.model.feature.Feature;
import org.kalypsodeegree.model.feature.GMLWorkspace;
import org.kalypsodeegree.model.feature.IXLinkedFeature;
import org.kalypsodeegree_impl.model.feature.FeatureHelper;

/**
 * Helper class that wraps a tabItem as a feature conrol.
 * 
 * @author Gernot Belger
 */
public class FeatureTabItem {
    private static final String DATA_ME = "me"; //$NON-NLS-1$

    private final CTabItem m_item;

    private final Object m_featureObject;

    private final GMLWorkspace m_workspace;

    private FeatureComposite m_fc;

    public static FeatureTabItem get(final CTabItem tabItem) {
        return (FeatureTabItem) tabItem.getData(DATA_ME);
    }

    public FeatureTabItem(final CTabItem item, final GMLWorkspace workspace, final Object featureObject) {
        m_item = item;

        m_workspace = workspace;
        m_featureObject = featureObject;
        m_item.setData(DATA_ME, this);
    }

    public IFeatureControl createFeatureConrol(final IFeatureComposite parentComposite) {
        final IFeatureviewFactory featureviewFactory = parentComposite.getFeatureviewFactory();
        final IFeatureSelectionManager selectionManager = parentComposite.getSelectionManager();

        final FeatureComposite fc = new FeatureComposite(getFeature(), selectionManager, featureviewFactory);
        fc.setFormToolkit(parentComposite.getFormToolkit());
        fc.setShowOk(parentComposite.isShowOk());

        m_fc = fc;

        final Control control = fc.createControl(m_item.getParent(), SWT.NONE);

        m_item.setControl(control);

        return fc;
    }

    public Feature getFeature() {
        return FeatureHelper.resolveLinkedFeature(m_workspace, m_featureObject);
    }

    public Object getFeatureObject() {
        return m_featureObject;
    }

    public void destroy() {
        m_item.dispose();
        m_fc.dispose();
    }

    public void updateControl() {
        final Feature feature = getFeature();
        final String text = FeatureHelper.getAnnotationValue(feature, IAnnotation.ANNO_LABEL);

        /* Ensure minimum length */
        final int MIN_TITLE_LENGTH = 8;
        final int MAX_TITLE_LENGTH = 30;

        final String paddedText = StringUtils.rightPad(text, MIN_TITLE_LENGTH);

        /* Ensure maximum length */
        final String abreviatedText = StringUtils.abbreviate(paddedText, MAX_TITLE_LENGTH);

        m_item.setText(abreviatedText);
        m_item.setToolTipText(text);

        m_fc.updateControl();
    }

    public ICommand deleteFeature() {
        if (m_featureObject instanceof IXLinkedFeature)
            throw new UnsupportedOperationException();

        if (m_featureObject instanceof Feature)
            return new DeleteFeatureCommand(getFeature());

        throw new UnsupportedOperationException();
    }
}