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package tim.prune.function;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.util.ArrayList;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import tim.prune.App;
import tim.prune.GenericFunction;
import tim.prune.I18nManager;
import tim.prune.cmd.Command;
import tim.prune.cmd.ConnectMultipleMediaCmd;
import tim.prune.cmd.EditSingleFieldCmd;
import tim.prune.cmd.MediaLinkType;
import tim.prune.cmd.PointAndMedia;
import tim.prune.data.Field;
import tim.prune.data.FieldList;
import tim.prune.data.Track;
import tim.prune.function.edit.PointEdit;
/**
* Class to provide the function to delete the values of a single field
* for all points in the current range
*/
public class DeleteFieldValues extends GenericFunction
{
private JDialog _dialog = null;
private JList<String> _fieldList = null;
private FieldListModel _listModel = null;
private JButton _okButton = null;
/**
* Constructor
* @param inApp application object for callback
*/
public DeleteFieldValues(App inApp) {
super(inApp);
}
/** Get the name key */
public String getNameKey() {
return "function.deletefieldvalues";
}
/**
* Begin the function
*/
public void begin()
{
// Make dialog window
if (_dialog == null)
{
_dialog = new JDialog(_parentFrame, getName(), true);
_dialog.setLocationRelativeTo(_parentFrame);
_dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
_dialog.getContentPane().add(makeDialogComponents());
_dialog.pack();
}
// refresh the dialog
initDialog();
// Check whether any fields left
if (_listModel.getSize() < 1) {
_app.showErrorMessage(getNameKey(), "dialog.deletefieldvalues.nofields");
}
else {
_dialog.setVisible(true);
}
}
/**
* Create dialog components
* @return Panel containing all gui elements in dialog
*/
private JPanel makeDialogComponents()
{
JPanel dialogPanel = new JPanel();
dialogPanel.setLayout(new BorderLayout());
dialogPanel.add(new JLabel(I18nManager.getText("dialog.deletefieldvalues.intro")), BorderLayout.NORTH);
// List in centre
_fieldList = new JList<String>(new String[] {"First field", "Second field"});
// These entries will be replaced by the initDialog method
_fieldList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
_fieldList.addListSelectionListener(e -> _okButton.setEnabled(_fieldList.getSelectedIndex() >= 0));
dialogPanel.add(new JScrollPane(_fieldList), BorderLayout.CENTER);
// button panel at bottom
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
_okButton = new JButton(I18nManager.getText("button.ok"));
_okButton.addActionListener(e -> finish());
_okButton.setEnabled(false);
buttonPanel.add(_okButton);
JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
cancelButton.addActionListener(e -> _dialog.dispose());
buttonPanel.add(cancelButton);
dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
return dialogPanel;
}
/**
* Initialise the dialog with the field list
*/
private void initDialog()
{
_listModel = new FieldListModel();
int selStart = _app.getTrackInfo().getSelection().getStart();
int selEnd = _app.getTrackInfo().getSelection().getEnd();
// Loop over fields in track
final Track track = _app.getTrackInfo().getTrack();
FieldList fieldsInTrack = track.getFieldList();
for (int i=0; i<fieldsInTrack.getNumFields(); i++)
{
Field field = fieldsInTrack.getField(i);
if (field != Field.LATITUDE && field != Field.LONGITUDE
&& track.hasData(field, selStart, selEnd))
{
_listModel.addField(field);
}
}
// These aren't really fields but can also be deleted:
if (track.hasData(Field.PHOTO, selStart, selEnd)) {
_listModel.addField(Field.PHOTO);
}
if (track.hasData(Field.AUDIO, selStart, selEnd)) {
_listModel.addField(Field.AUDIO);
}
_fieldList.setModel(_listModel);
_fieldList.clearSelection();
_okButton.setEnabled(false);
}
/**
* Finish the dialog when OK pressed
*/
private void finish()
{
Field field = _listModel.getField(_fieldList.getSelectedIndex());
if (field == null) {
return;
}
final int selStart = _app.getTrackInfo().getSelection().getStart();
final int selEnd = _app.getTrackInfo().getSelection().getEnd();
_dialog.dispose();
Command command = makeCommand(field, selStart, selEnd);
command.setDescription(I18nManager.getText("undo.deletefieldvalues", field.getName()));
command.setConfirmText(I18nManager.getText("confirm.deletefieldvalues"));
_app.execute(command);
}
/**
* @return a suitable command to delete the field values for the given field
*/
private Command makeCommand(Field field, int selStart, int selEnd)
{
if (field == Field.PHOTO || field == Field.AUDIO)
{
// It's a media field so use a ConnectMultipleMediaCmd instead
MediaLinkType linkType = field == Field.PHOTO ? MediaLinkType.LINK_PHOTOS : MediaLinkType.LINK_AUDIOS;
ArrayList<PointAndMedia> points = new ArrayList<>();
Track track = _app.getTrackInfo().getTrack();
for (int i=selStart; i<= selEnd; i++) {
points.add(new PointAndMedia(track.getPoint(i), null));
}
return new ConnectMultipleMediaCmd(linkType, points);
}
// It's a regular field so use EditSingleFieldCmd with values of null
ArrayList<PointEdit> edits = new ArrayList<>();
for (int i=selStart; i<= selEnd; i++) {
edits.add(new PointEdit(i, null));
}
return new EditSingleFieldCmd(field, edits, getConfig().getUnitSet());
}
}
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