/*
 * ------------------------------------------------------------------------
 *
 *  Copyright (C) 2003 - 2013
 *  University of Konstanz, Germany and
 *  KNIME GmbH, Konstanz, Germany
 *  Website: http://www.knime.org; Email: contact@knime.org
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License, Version 3, as
 *  published by the Free Software Foundation.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, see <http://www.gnu.org/licenses>.
 *
 *  Additional permission under GNU GPL version 3 section 7:
 *
 *  KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs.
 *  Hence, KNIME and ECLIPSE are both independent programs and are not
 *  derived from each other. Should, however, the interpretation of the
 *  GNU GPL Version 3 ("License") under any applicable laws result in
 *  KNIME and ECLIPSE being a combined program, KNIME GMBH herewith grants
 *  you the additional permission to use and propagate KNIME together with
 *  ECLIPSE with only the license terms in place for ECLIPSE applying to
 *  ECLIPSE and the GNU GPL Version 3 applying for KNIME, provided the
 *  license terms of ECLIPSE themselves allow for the respective use and
 *  propagation of ECLIPSE together with KNIME.
 *
 *  Additional permission relating to nodes for KNIME that extend the Node
 *  Extension (and in particular that are based on subclasses of NodeModel,
 *  NodeDialog, and NodeView) and that only interoperate with KNIME through
 *  standard APIs ("Nodes"):
 *  Nodes are deemed to be separate and independent programs and to not be
 *  covered works.  Notwithstanding anything to the contrary in the
 *  License, the License does not apply to Nodes, you are not required to
 *  license Nodes under the License, and you are granted a license to
 *  prepare and propagate Nodes, in each case even if such Nodes are
 *  propagated with or for interoperation with KNIME.  The owner of a Node
 *  may freely choose the license terms applicable to such Node, including
 *  when such Node is propagated with or for interoperation with KNIME.
 * --------------------------------------------------------------------- *
 *
 */
package org.knime.knip.base.nodes.view;

import java.util.List;

import javax.swing.JPanel;

import org.knime.core.data.DataValue;
import org.knime.knip.base.KNIMEKNIPPlugin;
import org.knime.knip.base.data.labeling.LabelingValue;
import org.knime.knip.base.data.ui.ViewerFactory;
import org.knime.knip.cellviewer.interfaces.CellView;
import org.knime.knip.cellviewer.interfaces.CellViewFactory;
import org.knime.knip.core.ui.imgviewer.ImgViewer;
import org.knime.knip.core.ui.imgviewer.events.ViewClosedEvent;

import net.imglib2.type.numeric.IntegerType;

/**
 * TODO Auto-generated
 *
 * @author <a href="mailto:dietzc85@googlemail.com">Christian Dietz</a>
 * @author <a href="mailto:horn_martin@gmx.de">Martin Horn</a>
 * @author <a href="mailto:michael.zinsmaier@googlemail.com">Michael Zinsmaier</a>
 */
public class LabelingCellViewFactory<L extends Comparable<L>, II extends IntegerType<II>>
        implements CellViewFactory {

    @Override
    public CellView createCellView() {
        return new CellView() {

            // Lazy loading due to headless mode
            private ImgViewer m_view = null;

            @Override
            public JPanel getViewComponent() {
                if (m_view == null) {
                    m_view = ViewerFactory.createLabelingViewer(KNIMEKNIPPlugin.getCacheSizeForBufferedImages());
                }
                return m_view;
            }


            @Override
            public void onClose() {
                if (m_view != null) {
                    m_view.getEventService().publish(new ViewClosedEvent());
                }
            }

            @Override
            public void onReset() {
                // Nothing to do here
            }


            @Override
            public void updateComponent(final List<DataValue> valuesToView) {

                final LabelingValue<L> labelingValue = (LabelingValue<L>)valuesToView.get(0);
                m_view.setLabeling(labelingValue.getLabeling(), labelingValue.getLabelingMetadata());
            }

        };
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getCellViewName() {
        return "Labeling View";
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getCellViewDescription() {
        return "View on a labeling/segmentation";
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean isCompatible(final List<Class<? extends DataValue>> values) {
        if (values.size() >= 2) {
            return false;
        }
        if (values.get(0).equals(LabelingValue.class)) {
            return true;
        } else {
            return false;
        }
    }

    @Override
    public int getPriority(){
        return Integer.MAX_VALUE;
    }

}