/*******************************************************************************
 * sdrtrunk
 * Copyright (C) 2014-2017 Dennis Sheirer
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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/>
 *
 ******************************************************************************/
package map;

import icon.IconManager;
import net.miginfocom.swing.MigLayout;
import org.jdesktop.swingx.JXMapViewer;
import org.jdesktop.swingx.OSMTileFactoryInfo;
import org.jdesktop.swingx.input.PanKeyListener;
import org.jdesktop.swingx.input.ZoomMouseWheelListenerCursor;
import org.jdesktop.swingx.mapviewer.DefaultTileFactory;
import org.jdesktop.swingx.mapviewer.GeoPosition;
import org.jdesktop.swingx.mapviewer.TileFactoryInfo;
import settings.MapViewSetting;
import settings.SettingsManager;

import javax.swing.*;
import java.awt.*;

public class MapPanel extends JPanel implements PlottableUpdateListener
{
    private static final long serialVersionUID = 1L;

    private SettingsManager mSettingsManager;
    private MapService mMapService;
    private JXMapViewer mMapViewer = new JXMapViewer();
    private PlottableEntityPainter mMapPainter;

    public MapPanel(MapService mapService, IconManager iconManager, SettingsManager settingsManager)
    {
        mSettingsManager = settingsManager;
        mMapService = mapService;
        mMapPainter = new PlottableEntityPainter(iconManager);

        init();
    }

    private void init()
    {
        setLayout(new MigLayout("insets 0 0 0 0", "[grow,fill]", "[grow,fill]"));

        /**
         * Set the entity painter as the overlay painter and register this panel
         * to receive new messages (plots)
         */
        mMapViewer.setOverlayPainter(mMapPainter);
        mMapService.addListener(this);

        /**
         * Map image source
         */
        TileFactoryInfo info = new OSMTileFactoryInfo();
        DefaultTileFactory tileFactory = new DefaultTileFactory(info);
        mMapViewer.setTileFactory(tileFactory);

        /**
         * Defines how many threads will be used to fetch the background map
         * tiles (graphics)
         */
        tileFactory.setThreadPoolSize(8);

        /**
         * Set initial location and zoom for the map upon display
         */
        GeoPosition syracuse = new GeoPosition(43.048, -76.147);
        int zoom = 7;

        MapViewSetting view = mSettingsManager.getMapViewSetting("Default", syracuse, zoom);

        mMapViewer.setAddressLocation(view.getGeoPosition());
        mMapViewer.setZoom(view.getZoom());

        /**
         * Add a mouse adapter for panning and scrolling
         */
        MapMouseListener listener = new MapMouseListener(mMapViewer, mSettingsManager);
        mMapViewer.addMouseListener(listener);
        mMapViewer.addMouseMotionListener(listener);

		/* Map zoom listener */
        mMapViewer.addMouseWheelListener(new ZoomMouseWheelListenerCursor(mMapViewer));

		/* Keyboard panning listener */
        mMapViewer.addKeyListener(new PanKeyListener(mMapViewer));

        /**
         * Add a selection listener
         */
        SelectionAdapter sa = new SelectionAdapter(mMapViewer);
        mMapViewer.addMouseListener(sa);
        mMapViewer.addMouseMotionListener(sa);

        /**
         * Map component
         */
        add(mMapViewer, "span");
    }

    @Override
    public void entitiesUpdated()
    {
        EventQueue.invokeLater(new Runnable()
        {
            @Override
            public void run()
            {
                mMapViewer.repaint();
            }
        });
    }

    @Override
    public void addPlottableEntity(PlottableEntity entity)
    {
        mMapPainter.addEntity(entity);

        entitiesUpdated();
    }

    @Override
    public void removePlottableEntity(PlottableEntity entity)
    {
        mMapPainter.removeEntity(entity);

        entitiesUpdated();
    }
}