de.fhg.igd.mapviewer.MapToolPainter.java Source code

Introduction

Here is the source code for de.fhg.igd.mapviewer.MapToolPainter.java

Source

/*
 * Copyright (c) 2016 Fraunhofer IGD
 * 
 * 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:
 *     Fraunhofer IGD <http://www.igd.fraunhofer.de/>
 */
package de.fhg.igd.mapviewer;

import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.geom.Point2D;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jdesktop.swingx.mapviewer.GeoPosition;
import org.jdesktop.swingx.mapviewer.IllegalGeoPositionException;
import org.jdesktop.swingx.mapviewer.JXMapViewer;
import org.jdesktop.swingx.painter.AbstractPainter;

/**
 * MapToolPainter
 *
 * @author <a href="mailto:simon.templer@igd.fhg.de">Simon Templer</a>
 *
 * @version $Id$
 */
public class MapToolPainter extends AbstractPainter<JXMapViewer>
        implements MapPainter, MouseListener, MouseMotionListener {

    private static final Log log = LogFactory.getLog(MapToolPainter.class);

    private MapTool mapTool;

    private Point2D mousePos = null;

    private final JXMapViewer mapViewer;

    /**
     * Constructor
     * 
     * @param mapViewer the map viewer
     */
    public MapToolPainter(JXMapViewer mapViewer) {
        mapViewer.addMouseListener(this);
        mapViewer.addMouseMotionListener(this);

        this.mapViewer = mapViewer;

        setAntialiasing(true);
        setCacheable(false);
    }

    /**
     * @see AbstractPainter#doPaint(Graphics2D, Object, int, int)
     */
    @Override
    protected void doPaint(Graphics2D g, JXMapViewer mapViewer, int width, int height) {
        if (mapTool == null || mapTool.getRenderer() == null) {
            return;
        }

        // convert positions to pixels inside viewport
        List<Point2D> points = new ArrayList<Point2D>();

        try {
            for (GeoPosition pos : mapTool.getPositions()) {
                points.add(mapViewer.convertGeoPositionToPoint(pos));
            }

            // call renderer
            mapTool.getRenderer().paint(g, points, mousePos, mapTool);
        } catch (IllegalGeoPositionException e) {
            log.error("Error converting tool positions", e); //$NON-NLS-1$
        }
    }

    /**
     * @return the mapTool
     */
    public MapTool getMapTool() {
        return mapTool;
    }

    /**
     * @param mapTool the mapTool to set
     */
    public void setMapTool(MapTool mapTool) {
        this.mapTool = mapTool;
    }

    /**
     * @see MouseMotionListener#mouseDragged(MouseEvent)
     */
    @Override
    public void mouseDragged(MouseEvent me) {
        mouseMove(me);
    }

    /**
     * @see MouseMotionListener#mouseMoved(MouseEvent)
     */
    @Override
    public void mouseMoved(MouseEvent me) {
        mouseMove(me);
    }

    private void mouseMove(MouseEvent me) {
        // save mouse position (viewport pixels)
        mousePos = me.getPoint();
        // repaint if necessary
        if (mapTool != null && mapTool.getRenderer() != null && mapTool.getRenderer().repaintOnMouseMove())
            mapViewer.repaint();
    }

    /**
     * @see MouseListener#mouseClicked(MouseEvent)
     */
    @Override
    public void mouseClicked(MouseEvent me) {
        if (mapTool != null) {
            mapTool.mouseClicked(me, mapViewer.convertPointToGeoPosition(me.getPoint()));
        }
    }

    /**
     * @see MouseListener#mouseEntered(MouseEvent)
     */
    @Override
    public void mouseEntered(MouseEvent me) {
        // ignore
    }

    /**
     * @see MouseListener#mouseExited(MouseEvent)
     */
    @Override
    public void mouseExited(MouseEvent me) {
        // ignore
    }

    /**
     * @see MouseListener#mousePressed(MouseEvent)
     */
    @Override
    public void mousePressed(MouseEvent me) {
        if (mapTool != null) {
            mapTool.mousePressed(me, mapViewer.convertPointToGeoPosition(me.getPoint()));
        }
    }

    /**
     * @see MouseListener#mouseReleased(MouseEvent)
     */
    @Override
    public void mouseReleased(MouseEvent me) {
        if (mapTool != null) {
            mapTool.mouseReleased(me, mapViewer.convertPointToGeoPosition(me.getPoint()));

            // reset cursor
            mapViewer.setCursor(mapTool.getCursor());
        }
    }

    /**
     * @see MapPainter#setMapKit(BasicMapKit)
     */
    @Override
    public void setMapKit(BasicMapKit mapKit) {
        // ignore
    }

    @Override
    public String getTipText(Point point) {
        return null;
    }

    /**
     * @see MapPainter#dispose()
     */
    @Override
    public void dispose() {
        mapViewer.removeMouseListener(this);
        mapViewer.removeMouseMotionListener(this);
    }

}