// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.layer.gpx;
import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Map;
import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JToggleButton;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableRowSorter;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.gpx.GpxTrack;
import org.openstreetmap.josm.gui.ExtendedDialog;
import org.openstreetmap.josm.gui.NavigatableComponent;
import org.openstreetmap.josm.gui.layer.GpxLayer;
import org.openstreetmap.josm.tools.GBC;
import org.openstreetmap.josm.tools.ImageProvider;
import org.openstreetmap.josm.tools.OpenBrowser;
import org.openstreetmap.josm.tools.WindowGeometry;
/**
* allows the user to choose which of the downloaded tracks should be displayed.
* they can be chosen from the gpx layer context menu.
*/
public class ChooseTrackVisibilityAction extends AbstractAction {
private final GpxLayer layer;
DateFilterPanel dateFilter;
JTable table;
/**
* Constructs a new {@code ChooseTrackVisibilityAction}.
* @param layer The associated GPX layer
*/
public ChooseTrackVisibilityAction(final GpxLayer layer) {
super(tr("Choose visible tracks"), ImageProvider.get("dialogs/filter"));
this.layer = layer;
putValue("help", ht("/Action/ChooseTrackVisibility"));
}
/**
* Class to format a length according to SystemOfMesurement.
*/
private static final class TrackLength {
private double value;
/**
* Constructs a new {@code TrackLength} object with a given length.
* @param value length of the track
*/
TrackLength(double value) {
this.value = value;
}
/**
* Provides string representation.
* @return String representation depending of SystemOfMeasurement
*/
@Override
public String toString() {
return NavigatableComponent.getSystemOfMeasurement().getDistText(value);
}
}
/**
* Comparator for TrackLength objects
*/
private static final class LengthContentComparator implements Comparator<TrackLength> {
/**
* Compare 2 TrackLength objects relative to the real length
*/
@Override
public int compare(TrackLength l0, TrackLength l1) {
if(l0.value < l1.value)
return -1;
else if(l0.value > l1.value)
return 1;
return 0;
}
}
/**
* gathers all available data for the tracks and returns them as array of arrays
* in the expected column order */
private Object[][] buildTableContents() {
Object[][] tracks = new Object[layer.data.tracks.size()][5];
int i = 0;
for (GpxTrack trk : layer.data.tracks) {
Map<String, Object> attr = trk.getAttributes();
String name = (String) (attr.containsKey("name") ? attr.get("name") : "");
String desc = (String) (attr.containsKey("desc") ? attr.get("desc") : "");
String time = GpxLayer.getTimespanForTrack(trk);
TrackLength length = new TrackLength(trk.length());
String url = (String) (attr.containsKey("url") ? attr.get("url") : "");
tracks[i] = new Object[]{name, desc, time, length, url};
i++;
}
return tracks;
}
/**
* Builds an non-editable table whose 5th column will open a browser when double clicked.
* The table will fill its parent. */
private JTable buildTable(Object[][] content) {
final String[] headers = {tr("Name"), tr("Description"), tr("Timespan"), tr("Length"), tr("URL")};
DefaultTableModel model = new DefaultTableModel(content, headers);
final JTable t = new JTable(model) {
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int col) {
Component c = super.prepareRenderer(renderer, row, col);
if (c instanceof JComponent) {
JComponent jc = (JComponent) c;
jc.setToolTipText(getValueAt(row, col).toString());
}
return c;
}
@Override
public boolean isCellEditable(int rowIndex, int colIndex) {
return false;
}
};
// define how to sort row
TableRowSorter<DefaultTableModel> rowSorter = new TableRowSorter<>();
t.setRowSorter(rowSorter);
rowSorter.setModel(model);
rowSorter.setComparator(3, new LengthContentComparator());
// default column widths
t.getColumnModel().getColumn(0).setPreferredWidth(220);
t.getColumnModel().getColumn(1).setPreferredWidth(300);
t.getColumnModel().getColumn(2).setPreferredWidth(200);
t.getColumnModel().getColumn(3).setPreferredWidth(50);
t.getColumnModel().getColumn(4).setPreferredWidth(100);
// make the link clickable
final MouseListener urlOpener = new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() != 2) {
return;
}
JTable t = (JTable) e.getSource();
int col = t.convertColumnIndexToModel(t.columnAtPoint(e.getPoint()));
if (col != 4) {
return;
}
int row = t.rowAtPoint(e.getPoint());
String url = (String) t.getValueAt(row, col);
if (url == null || url.isEmpty()) {
return;
}
OpenBrowser.displayUrl(url);
}
};
t.addMouseListener(urlOpener);
t.setFillsViewportHeight(true);
return t;
}
boolean noUpdates=false;
/** selects all rows (=tracks) in the table that are currently visible on the layer*/
private void selectVisibleTracksInTable() {
// don't select any tracks if the layer is not visible
if (!layer.isVisible()) {
return;
}
ListSelectionModel s = table.getSelectionModel();
s.clearSelection();
for (int i = 0; i < layer.trackVisibility.length; i++) {
if (layer.trackVisibility[i]) {
s.addSelectionInterval(i, i);
}
}
}
/** listens to selection changes in the table and redraws the map */
private void listenToSelectionChanges() {
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
if (noUpdates || !(e.getSource() instanceof ListSelectionModel)) {
return;
}
updateVisibilityFromTable();
}
});
}
private void updateVisibilityFromTable() {
ListSelectionModel s = table.getSelectionModel();
for (int i = 0; i < layer.trackVisibility.length; i++) {
layer.trackVisibility[table.convertRowIndexToModel(i)] = s.isSelectedIndex(i);
}
Main.map.mapView.preferenceChanged(null);
Main.map.repaint(100);
}
@Override
public void actionPerformed(ActionEvent arg0) {
final JPanel msg = new JPanel(new GridBagLayout());
dateFilter = new DateFilterPanel(layer, "gpx.traces", false);
dateFilter.setFilterAppliedListener(new ActionListener(){
@Override public void actionPerformed(ActionEvent e) {
noUpdates = true;
selectVisibleTracksInTable();
noUpdates = false;
Main.map.mapView.preferenceChanged(null);
Main.map.repaint(100);
}
});
dateFilter.loadFromPrefs();
final JToggleButton b = new JToggleButton(new AbstractAction(tr("Select by date")) {
@Override public void actionPerformed(ActionEvent e) {
if (((JToggleButton) e.getSource()).isSelected()) {
dateFilter.setEnabled(true);
dateFilter.applyFilter();
} else {
dateFilter.setEnabled(false);
}
}
});
dateFilter.setEnabled(false);
msg.add(b, GBC.std().insets(0,0,5,0));
msg.add(dateFilter, GBC.eol().insets(0,0,10,0).fill(GBC.HORIZONTAL));
msg.add(new JLabel(tr("<html>Select all tracks that you want to be displayed. You can drag select a " + "range of tracks or use CTRL+Click to select specific ones. The map is updated live in the " + "background. Open the URLs by double clicking them.</html>")), GBC.eop().fill(GBC.HORIZONTAL));
// build table
final boolean[] trackVisibilityBackup = layer.trackVisibility.clone();
table = buildTable(buildTableContents());
selectVisibleTracksInTable();
listenToSelectionChanges();
// make the table scrollable
JScrollPane scrollPane = new JScrollPane(table);
msg.add(scrollPane, GBC.eol().fill(GBC.BOTH));
// build dialog
ExtendedDialog ed = new ExtendedDialog(Main.parent, tr("Set track visibility for {0}", layer.getName()), new String[]{tr("Show all"), tr("Show selected only"), tr("Cancel")});
ed.setButtonIcons(new String[]{"dialogs/layerlist/eye", "dialogs/filter", "cancel"});
ed.setContent(msg, false);
ed.setDefaultButton(2);
ed.setCancelButton(3);
ed.configureContextsensitiveHelp("/Action/ChooseTrackVisibility", true);
ed.setRememberWindowGeometry(getClass().getName() + ".geometry", WindowGeometry.centerInWindow(Main.parent, new Dimension(1000, 500)));
ed.showDialog();
dateFilter.saveInPrefs();
int v = ed.getValue();
// cancel for unknown buttons and copy back original settings
if (v != 1 && v != 2) {
layer.trackVisibility = Arrays.copyOf(trackVisibilityBackup, layer.trackVisibility.length);
Main.map.repaint();
return;
}
// set visibility (1 = show all, 2 = filter). If no tracks are selected
// set all of them visible and...
ListSelectionModel s = table.getSelectionModel();
final boolean all = v == 1 || s.isSelectionEmpty();
for (int i = 0; i < layer.trackVisibility.length; i++) {
layer.trackVisibility[table.convertRowIndexToModel(i)] = all || s.isSelectedIndex(i);
}
// ...sync with layer visibility instead to avoid having two ways to hide everything
layer.setVisible(v == 1 || !s.isSelectionEmpty());
Main.map.mapView.preferenceChanged(null);
Main.map.repaint();
}
}