org.jxmapviewer.viewer.WaypointPainter Maven / Gradle / Ivy

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/*
 * WaypointMapOverlay.java
 *
 * Created on April 1, 2006, 4:59 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package org.jxmapviewer.viewer;

import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import org.jxmapviewer.JXMapViewer;
import org.jxmapviewer.painter.AbstractPainter;

/**
 * Paints waypoints on the JXMapViewer. This is an 
 * instance of Painter that only can draw on to JXMapViewers.
 * @param  the waypoint type
 * @author rbair
 */
public class WaypointPainter extends AbstractPainter
{
    private WaypointRenderer renderer = new DefaultWaypointRenderer();
    private Set waypoints = new HashSet();

    /**
     * Creates a new instance of WaypointPainter
     */
    public WaypointPainter()
    {
        setAntialiasing(true);
        setCacheable(false);
    }

    /**
     * Sets the waypoint renderer to use when painting waypoints
     * @param r the new WaypointRenderer to use
     */
    public void setRenderer(WaypointRenderer r)
    {
        this.renderer = r;
    }

    /**
     * Gets the current set of waypoints to paint
     * @return a typed Set of Waypoints
     */
    public Set getWaypoints()
    {
        return Collections.unmodifiableSet(waypoints);
    }

    /**
     * Sets the current set of waypoints to paint
     * @param waypoints the new Set of Waypoints to use
     */
    public void setWaypoints(Set waypoints)
    {
        this.waypoints.clear();
        this.waypoints.addAll(waypoints);
    }

    @Override
    protected void doPaint(Graphics2D g, JXMapViewer map, int width, int height)
    {
        if (renderer == null)
        {
            return;
        }

        Rectangle viewportBounds = map.getViewportBounds();

        g.translate(-viewportBounds.getX(), -viewportBounds.getY());

        for (W w : getWaypoints())
        {
            renderer.paintWaypoint(g, map, w);
        }

        g.translate(viewportBounds.getX(), viewportBounds.getY());

    }

}