// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.actions;
import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.BorderLayout;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.util.Optional;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.Bounds;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.gui.ExtendedDialog;
import org.openstreetmap.josm.gui.MapView;
import org.openstreetmap.josm.gui.datatransfer.ClipboardUtils;
import org.openstreetmap.josm.gui.widgets.JosmTextField;
import org.openstreetmap.josm.gui.widgets.SelectAllOnFocusGainedDecorator;
import org.openstreetmap.josm.tools.GBC;
import org.openstreetmap.josm.tools.ImageProvider;
import org.openstreetmap.josm.tools.OsmUrlToBounds;
import org.openstreetmap.josm.tools.Shortcut;
/**
* Allows to jump to a specific location.
* @since 2575
*/
public class JumpToAction extends JosmAction {
private final JosmTextField url = new JosmTextField();
private final JosmTextField lat = new JosmTextField();
private final JosmTextField lon = new JosmTextField();
private final JosmTextField zm = new JosmTextField();
/**
* Constructs a new {@code JumpToAction}.
*/
public JumpToAction() {
super(tr("Jump To Position"), (ImageProvider) null, tr("Opens a dialog that allows to jump to a specific location"),
Shortcut.registerShortcut("tools:jumpto", tr("Tool: {0}", tr("Jump To Position")),
KeyEvent.VK_J, Shortcut.CTRL), true, "action/jumpto", true);
putValue("help", ht("/Action/JumpToPosition"));
}
static class JumpToPositionDialog extends ExtendedDialog {
JumpToPositionDialog(String[] buttons, JPanel panel) {
super(Main.parent, tr("Jump to Position"), buttons);
setContent(panel);
setCancelButton(2);
}
}
class OsmURLListener implements DocumentListener {
@Override
public void changedUpdate(DocumentEvent e) {
parseURL();
}
@Override
public void insertUpdate(DocumentEvent e) {
parseURL();
}
@Override
public void removeUpdate(DocumentEvent e) {
parseURL();
}
}
class OsmLonLatListener implements DocumentListener {
@Override
public void changedUpdate(DocumentEvent e) {
updateUrl(false);
}
@Override
public void insertUpdate(DocumentEvent e) {
updateUrl(false);
}
@Override
public void removeUpdate(DocumentEvent e) {
updateUrl(false);
}
}
/**
* Displays the "Jump to" dialog.
*/
public void showJumpToDialog() {
if (!Main.isDisplayingMapView()) {
return;
}
MapView mv = Main.map.mapView;
final Optional<Bounds> boundsFromClipboard = Optional
.ofNullable(ClipboardUtils.getClipboardStringContent())
.map(OsmUrlToBounds::parse);
if (boundsFromClipboard.isPresent()) {
setBounds(boundsFromClipboard.get());
} else {
setBounds(mv.getState().getViewArea().getCornerBounds());
}
updateUrl(true);
JPanel panel = new JPanel(new BorderLayout());
panel.add(new JLabel("<html>"
+ tr("Enter Lat/Lon to jump to position.")
+ "<br>"
+ tr("You can also paste an URL from www.openstreetmap.org")
+ "<br>"
+ "</html>"),
BorderLayout.NORTH);
OsmLonLatListener x = new OsmLonLatListener();
lat.getDocument().addDocumentListener(x);
lon.getDocument().addDocumentListener(x);
zm.getDocument().addDocumentListener(x);
url.getDocument().addDocumentListener(new OsmURLListener());
SelectAllOnFocusGainedDecorator.decorate(lat);
SelectAllOnFocusGainedDecorator.decorate(lon);
SelectAllOnFocusGainedDecorator.decorate(zm);
SelectAllOnFocusGainedDecorator.decorate(url);
JPanel p = new JPanel(new GridBagLayout());
panel.add(p, BorderLayout.NORTH);
p.add(new JLabel(tr("Latitude")), GBC.eol());
p.add(lat, GBC.eol().fill(GBC.HORIZONTAL));
p.add(new JLabel(tr("Longitude")), GBC.eol());
p.add(lon, GBC.eol().fill(GBC.HORIZONTAL));
p.add(new JLabel(tr("Zoom (in metres)")), GBC.eol());
p.add(zm, GBC.eol().fill(GBC.HORIZONTAL));
p.add(new JLabel(tr("URL")), GBC.eol());
p.add(url, GBC.eol().fill(GBC.HORIZONTAL));
String[] buttons = {tr("Jump there"), tr("Cancel")};
LatLon ll = null;
double zoomLvl = 100;
while (ll == null) {
final int option = new JumpToPositionDialog(buttons, panel).showDialog().getValue();
if (option != 1) return;
try {
zoomLvl = Double.parseDouble(zm.getText());
ll = new LatLon(Double.parseDouble(lat.getText()), Double.parseDouble(lon.getText()));
} catch (NumberFormatException ex) {
try {
ll = LatLon.parse(lat.getText() + "; " + lon.getText());
} catch (IllegalArgumentException ex2) {
JOptionPane.showMessageDialog(Main.parent,
tr("Could not parse Latitude, Longitude or Zoom. Please check."),
tr("Unable to parse Lon/Lat"), JOptionPane.ERROR_MESSAGE);
}
}
}
double zoomFactor = 1/ mv.getDist100Pixel();
mv.zoomToFactor(mv.getProjection().latlon2eastNorth(ll), zoomFactor * zoomLvl);
}
private void parseURL() {
if (!url.hasFocus()) return;
String urlText = url.getText();
Bounds b = OsmUrlToBounds.parse(urlText);
setBounds(b);
}
private void setBounds(Bounds b) {
if (b != null) {
final LatLon center = b.getCenter();
lat.setText(Double.toString(center.lat()));
lon.setText(Double.toString(center.lon()));
zm.setText(Double.toString(OsmUrlToBounds.getZoom(b)));
}
}
private void updateUrl(boolean force) {
if (!lat.hasFocus() && !lon.hasFocus() && !zm.hasFocus() && !force) return;
try {
double dlat = Double.parseDouble(lat.getText());
double dlon = Double.parseDouble(lon.getText());
double zoomLvl = Double.parseDouble(zm.getText());
url.setText(OsmUrlToBounds.getURL(dlat, dlon, (int) zoomLvl));
} catch (NumberFormatException e) {
Main.debug(e.getMessage());
}
}
@Override
public void actionPerformed(ActionEvent e) {
showJumpToDialog();
}
@Override
protected void updateEnabledState() {
setEnabled(Main.isDisplayingMapView());
}
@Override
protected void installAdapters() {
super.installAdapters();
// make this action listen to mapframe change events
Main.addMapFrameListener((o, n) -> updateEnabledState());
}
}