// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.layer.markerlayer;
import java.awt.BorderLayout;
import java.awt.Cursor;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;
import java.util.Collections;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JToggleButton;
import javax.swing.JViewport;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.data.gpx.GpxConstants;
import org.openstreetmap.josm.data.gpx.GpxLink;
import org.openstreetmap.josm.data.gpx.WayPoint;
import org.openstreetmap.josm.tools.ImageProvider;
/**
* Marker representing an image. Uses a special icon, and when clicked,
* displays an image view dialog. Re-uses some code from GeoImageLayer.
*
* @author Frederik Ramm
*
*/
public class ImageMarker extends ButtonMarker {
public URL imageUrl;
public ImageMarker(LatLon ll, URL imageUrl, MarkerLayer parentLayer, double time, double offset) {
super(ll, "photo.png", parentLayer, time, offset);
this.imageUrl = imageUrl;
}
@Override public void actionPerformed(ActionEvent ev) {
final JPanel p = new JPanel(new BorderLayout());
final JScrollPane scroll = new JScrollPane(new JLabel(loadScaledImage(imageUrl, 580)));
final JViewport vp = scroll.getViewport();
p.add(scroll, BorderLayout.CENTER);
final JToggleButton scale = new JToggleButton(ImageProvider.get("misc", "rectangle"));
JPanel p2 = new JPanel();
p2.add(scale);
p.add(p2, BorderLayout.SOUTH);
scale.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent ev) {
p.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
if (scale.getModel().isSelected()) {
((JLabel)vp.getView()).setIcon(loadScaledImage(imageUrl, Math.max(vp.getWidth(), vp.getHeight())));
} else {
((JLabel)vp.getView()).setIcon(new ImageIcon(imageUrl));
}
p.setCursor(Cursor.getDefaultCursor());
}
});
scale.setSelected(true);
JOptionPane pane = new JOptionPane(p, JOptionPane.PLAIN_MESSAGE);
JDialog dlg = pane.createDialog(Main.parent, imageUrl.toString());
dlg.setModal(false);
dlg.toFront();
dlg.setVisible(true);
}
private static Icon loadScaledImage(URL u, int maxSize) {
Image img = new ImageIcon(u).getImage();
int w = img.getWidth(null);
int h = img.getHeight(null);
if (w>h) {
h = Math.round(maxSize*((float)h/w));
w = maxSize;
} else {
w = Math.round(maxSize*((float)w/h));
h = maxSize;
}
return new ImageIcon(img.getScaledInstance(w, h, Image.SCALE_SMOOTH));
}
@Override
public WayPoint convertToWayPoint() {
WayPoint wpt = super.convertToWayPoint();
GpxLink link = new GpxLink(imageUrl.toString());
link.type = "image";
wpt.attr.put(GpxConstants.META_LINKS, Collections.singleton(link));
return wpt;
}
}