// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.widgets;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.JTextComponent;
import org.openstreetmap.josm.data.Bounds;
import org.openstreetmap.josm.data.coor.CoordinateFormat;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.tools.GBC;
import org.openstreetmap.josm.tools.OsmUrlToBounds;
/**
*
*
*/
public class BoundingBoxSelectionPanel extends JPanel {
private JosmTextField[] tfLatLon;
private final JosmTextField tfOsmUrl = new JosmTextField();
protected void buildInputFields() {
tfLatLon = new JosmTextField[4];
for (int i = 0; i < 4; i++) {
tfLatLon[i] = new JosmTextField(11);
tfLatLon[i].setMinimumSize(new Dimension(100, new JosmTextField().getMinimumSize().height));
SelectAllOnFocusGainedDecorator.decorate(tfLatLon[i]);
}
LatitudeValidator.decorate(tfLatLon[0]);
LatitudeValidator.decorate(tfLatLon[2]);
LongitudeValidator.decorate(tfLatLon[1]);
LongitudeValidator.decorate(tfLatLon[3]);
}
protected final void build() {
buildInputFields();
setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
setLayout(new GridBagLayout());
tfOsmUrl.getDocument().addDocumentListener(new OsmUrlRefresher());
// select content on receiving focus. this seems to be the default in the
// windows look+feel but not for others. needs invokeLater to avoid strange
// side effects that will cancel out the newly made selection otherwise.
tfOsmUrl.addFocusListener(new SelectAllOnFocusGainedDecorator());
add(new JLabel(tr("Min. latitude")), GBC.std().insets(0, 0, 3, 5));
add(tfLatLon[0], GBC.std().insets(0, 0, 3, 5));
add(new JLabel(tr("Min. longitude")), GBC.std().insets(0, 0, 3, 5));
add(tfLatLon[1], GBC.eol());
add(new JLabel(tr("Max. latitude")), GBC.std().insets(0, 0, 3, 5));
add(tfLatLon[2], GBC.std().insets(0, 0, 3, 5));
add(new JLabel(tr("Max. longitude")), GBC.std().insets(0, 0, 3, 5));
add(tfLatLon[3], GBC.eol());
GridBagConstraints gc = new GridBagConstraints();
gc.gridx = 0;
gc.gridy = 2;
gc.gridwidth = 4;
gc.fill = GridBagConstraints.HORIZONTAL;
gc.weightx = 1.0;
gc.insets = new Insets(10, 0, 0, 3);
add(new JMultilineLabel(tr("URL from www.openstreetmap.org (you can paste a download URL here to specify a bounding box)")), gc);
gc.gridy = 3;
gc.insets = new Insets(3, 0, 0, 3);
add(tfOsmUrl, gc);
}
/**
* Constructs a new {@code BoundingBoxSelectionPanel}.
*/
public BoundingBoxSelectionPanel() {
build();
}
public void setBoundingBox(Bounds area) {
updateBboxFields(area);
}
public Bounds getBoundingBox() {
double minlon, minlat, maxlon, maxlat;
try {
minlat = Double.parseDouble(tfLatLon[0].getText().trim());
minlon = Double.parseDouble(tfLatLon[1].getText().trim());
maxlat = Double.parseDouble(tfLatLon[2].getText().trim());
maxlon = Double.parseDouble(tfLatLon[3].getText().trim());
} catch (NumberFormatException e) {
return null;
}
if (!LatLon.isValidLon(minlon) || !LatLon.isValidLon(maxlon)
|| !LatLon.isValidLat(minlat) || !LatLon.isValidLat(maxlat))
return null;
if (minlon > maxlon)
return null;
if (minlat > maxlat)
return null;
return new Bounds(minlon, minlat, maxlon, maxlat);
}
private boolean parseURL() {
Bounds b = OsmUrlToBounds.parse(tfOsmUrl.getText());
if (b == null) return false;
updateBboxFields(b);
return true;
}
private void updateBboxFields(Bounds area) {
if (area == null) return;
tfLatLon[0].setText(area.getMin().latToString(CoordinateFormat.DECIMAL_DEGREES));
tfLatLon[1].setText(area.getMin().lonToString(CoordinateFormat.DECIMAL_DEGREES));
tfLatLon[2].setText(area.getMax().latToString(CoordinateFormat.DECIMAL_DEGREES));
tfLatLon[3].setText(area.getMax().lonToString(CoordinateFormat.DECIMAL_DEGREES));
}
private static class LatitudeValidator extends AbstractTextComponentValidator {
public static void decorate(JTextComponent tc) {
new LatitudeValidator(tc);
}
LatitudeValidator(JTextComponent tc) {
super(tc);
}
@Override
public void validate() {
double value = 0;
try {
value = Double.parseDouble(getComponent().getText());
} catch (NumberFormatException ex) {
feedbackInvalid(tr("The string ''{0}'' is not a valid double value.", getComponent().getText()));
return;
}
if (!LatLon.isValidLat(value)) {
feedbackInvalid(tr("Value for latitude in range [-90,90] required.", getComponent().getText()));
return;
}
feedbackValid("");
}
@Override
public boolean isValid() {
double value = 0;
try {
value = Double.parseDouble(getComponent().getText());
} catch (NumberFormatException ex) {
return false;
}
if (!LatLon.isValidLat(value))
return false;
return true;
}
}
private static class LongitudeValidator extends AbstractTextComponentValidator {
public static void decorate(JTextComponent tc) {
new LongitudeValidator(tc);
}
LongitudeValidator(JTextComponent tc) {
super(tc);
}
@Override
public void validate() {
double value = 0;
try {
value = Double.parseDouble(getComponent().getText());
} catch (NumberFormatException ex) {
feedbackInvalid(tr("The string ''{0}'' is not a valid double value.", getComponent().getText()));
return;
}
if (!LatLon.isValidLon(value)) {
feedbackInvalid(tr("Value for longitude in range [-180,180] required.", getComponent().getText()));
return;
}
feedbackValid("");
}
@Override
public boolean isValid() {
double value = 0;
try {
value = Double.parseDouble(getComponent().getText());
} catch (NumberFormatException ex) {
return false;
}
if (!LatLon.isValidLon(value))
return false;
return true;
}
}
class OsmUrlRefresher implements DocumentListener {
@Override
public void changedUpdate(DocumentEvent e) {
parseURL();
}
@Override
public void insertUpdate(DocumentEvent e) {
parseURL();
}
@Override
public void removeUpdate(DocumentEvent e) {
parseURL();
}
}
}