+package tim.prune.function;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+
+import javax.swing.Box;
+import javax.swing.BoxLayout;
+import javax.swing.ButtonGroup;
+import javax.swing.JButton;
+import javax.swing.JComboBox;
+import javax.swing.JDialog;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JRadioButton;
+
+import tim.prune.App;
+import tim.prune.GenericFunction;
+import tim.prune.I18nManager;
+import tim.prune.data.Distance;
+import tim.prune.data.Field;
+import tim.prune.data.TimeDifference;
+import tim.prune.data.Unit;
+import tim.prune.data.UnitSetLibrary;
+import tim.prune.gui.WholeNumberField;
+
+/**
+ * Superclass for functions which act on a defined
+ * distance limit or time limit
+ */
+public abstract class DistanceTimeLimitFunction extends GenericFunction
+{
+ /** Dialog */
+ protected JDialog _dialog = null;
+ /** Radio buttons for splitting by distance and time */
+ private JRadioButton _distLimitRadio = null, _timeLimitRadio = null;
+ /** Dropdown for selecting distance units */
+ private JComboBox<String> _distUnitsDropdown = null;
+ /** Text field for entering distance */
+ private WholeNumberField _distanceField = null;
+ /** Text fields for entering distance */
+ private WholeNumberField _limitHourField = null, _limitMinField = null;
+ /** Ok and cancel buttons */
+ private JButton _okButton = null;
+ private JButton _cancelButton = null;
+
+
+ /**
+ * React to item changes and key presses
+ */
+ private abstract class ChangeListener extends KeyAdapter implements ItemListener
+ {
+ /** Method to be implemented */
+ public abstract void optionsChanged();
+
+ /** Item changed in ItemListener */
+ public void itemStateChanged(ItemEvent arg0) {
+ optionsChanged();
+ }
+
+ /** Key released in KeyListener */
+ public void keyReleased(KeyEvent arg0) {
+ optionsChanged();
+ }
+ }
+
+ /**
+ * Constructor
+ */
+ public DistanceTimeLimitFunction(App inApp) {
+ super(inApp);
+ }
+
+ /**
+ * Begin the function
+ */
+ public void begin()
+ {
+ if (_dialog == null)
+ {
+ _dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()), true);
+ _dialog.setLocationRelativeTo(_parentFrame);
+ _dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+ _dialog.getContentPane().add(makeDialogComponents());
+ _dialog.pack();
+ }
+ enableOkButton();
+ // TODO: Maybe set distance units according to current Config setting?
+ final boolean hasTimestamps = _app.getTrackInfo().getTrack().hasData(Field.TIMESTAMP);
+ _timeLimitRadio.setEnabled(hasTimestamps);
+ if (!hasTimestamps)
+ {
+ _distLimitRadio.setSelected(true);
+ }
+ // set focus to Cancel button so that pressing "Esc" works
+ _cancelButton.requestFocus();
+ _dialog.setVisible(true);
+ }
+
+ /**
+ * Create dialog components
+ * @return Panel containing all gui elements in dialog
+ */
+ private Component makeDialogComponents()
+ {
+ JPanel dialogPanel = new JPanel();
+ dialogPanel.setLayout(new BorderLayout(5, 5));
+
+ // Make radio buttons for three different options
+ _distLimitRadio = new JRadioButton(I18nManager.getText("dialog.correlate.options.distancelimit") + ": ");
+ _timeLimitRadio = new JRadioButton(I18nManager.getText("dialog.correlate.options.timelimit") + ": ");
+ ButtonGroup radioGroup = new ButtonGroup();
+ radioGroup.add(_distLimitRadio);
+ radioGroup.add(_timeLimitRadio);
+
+ // central panel for limits
+ JPanel limitsPanel = new JPanel();
+ limitsPanel.setLayout(new BoxLayout(limitsPanel, BoxLayout.Y_AXIS));
+ limitsPanel.add(Box.createVerticalStrut(8));
+ ChangeListener optionsChangedListener = new ChangeListener() {
+ public void optionsChanged() {
+ enableOkButton();
+ }
+ };
+ // distance limits
+ JPanel distLimitPanel = new JPanel();
+ distLimitPanel.setLayout(new FlowLayout());
+ _distLimitRadio.setSelected(true);
+ _distLimitRadio.addItemListener(optionsChangedListener);
+ distLimitPanel.add(_distLimitRadio);
+ _distanceField = new WholeNumberField(3);
+ _distanceField.addKeyListener(optionsChangedListener);
+ distLimitPanel.add(_distanceField);
+ String[] distUnitsOptions = {I18nManager.getText("units.kilometres"), I18nManager.getText("units.metres"),
+ I18nManager.getText("units.miles")};
+ _distUnitsDropdown = new JComboBox<String>(distUnitsOptions);
+ _distUnitsDropdown.addItemListener(optionsChangedListener);
+ distLimitPanel.add(_distUnitsDropdown);
+ distLimitPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
+ limitsPanel.add(distLimitPanel);
+
+ // time limit panel
+ JPanel timeLimitPanel = new JPanel();
+ timeLimitPanel.setLayout(new FlowLayout());
+ _timeLimitRadio.addItemListener(optionsChangedListener);
+ timeLimitPanel.add(_timeLimitRadio);
+ _limitHourField = new WholeNumberField(2);
+ _limitHourField.addKeyListener(optionsChangedListener);
+ timeLimitPanel.add(_limitHourField);
+ timeLimitPanel.add(new JLabel(I18nManager.getText("dialog.correlate.options.offset.hours")));
+ _limitMinField = new WholeNumberField(3);
+ _limitMinField.addKeyListener(optionsChangedListener);
+ timeLimitPanel.add(_limitMinField);
+ timeLimitPanel.add(new JLabel(I18nManager.getText("units.minutes")));
+ timeLimitPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
+ limitsPanel.add(timeLimitPanel);
+
+ dialogPanel.add(limitsPanel, BorderLayout.NORTH);
+
+ // button panel at bottom
+ JPanel buttonPanel = new JPanel();
+ buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+ // OK button
+ _okButton = new JButton(I18nManager.getText("button.ok"));
+ _okButton.addActionListener(new ActionListener() {
+ public void actionPerformed(ActionEvent e) {
+ performFunction();
+ }
+ });
+ buttonPanel.add(_okButton);
+ // Cancel button
+ _cancelButton = new JButton(I18nManager.getText("button.cancel"));
+ _cancelButton.addActionListener(new ActionListener() {
+ public void actionPerformed(ActionEvent e) {
+ _dialog.dispose();
+ }
+ });
+ _cancelButton.addKeyListener(new KeyAdapter() {
+ public void keyPressed(KeyEvent inE) {
+ if (inE.getKeyCode() == KeyEvent.VK_ESCAPE) {_dialog.dispose();}
+ }
+ });
+ buttonPanel.add(_cancelButton);
+ dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
+ return dialogPanel;
+ }
+
+ /**
+ * Enable or disable the OK button according to the inputs
+ */
+ private void enableOkButton()
+ {
+ boolean enabled = false;
+ if (_distLimitRadio.isSelected()) {
+ enabled = _distanceField.getValue() > 0;
+ }
+ else if (_timeLimitRadio.isSelected()) {
+ enabled = _limitHourField.getValue() > 0 || _limitMinField.getValue() > 0;
+ }
+ _okButton.setEnabled(enabled);
+
+ // Also enable/disable the other fields
+ _distanceField.setEnabled(_distLimitRadio.isSelected());
+ _distUnitsDropdown.setEnabled(_distLimitRadio.isSelected());
+ _limitHourField.setEnabled(_timeLimitRadio.isSelected());
+ _limitMinField.setEnabled(_timeLimitRadio.isSelected());
+ }
+
+ /**
+ * @return selected time limit in seconds, or 0
+ */
+ protected int getTimeLimitInSeconds()
+ {
+ if (_timeLimitRadio.isSelected()
+ && (_limitHourField.getValue() > 0 || _limitMinField.getValue() > 0))
+ {
+ int timeLimitSeconds = _limitHourField.getValue() * 60 * 60
+ + _limitMinField.getValue() * 60;
+ if (timeLimitSeconds > 0)
+ return timeLimitSeconds;
+ }
+ return 0;
+ }
+
+ /**
+ * @return selected distance limit in radians, or 0.0
+ */
+ protected double getDistanceLimitRadians()
+ {
+ if (_distLimitRadio.isSelected()
+ && _distanceField.getValue() > 0)
+ {
+ final Unit[] distUnits = {UnitSetLibrary.UNITS_KILOMETRES,
+ UnitSetLibrary.UNITS_METRES, UnitSetLibrary.UNITS_MILES};
+ Unit distUnit = distUnits[_distUnitsDropdown.getSelectedIndex()];
+ double distLimitRadians = Distance.convertDistanceToRadians(_distanceField.getValue(), distUnit);
+ return distLimitRadians;
+ }
+ return 0.0;
+ }
+
+ /**
+ * The dialog has been completed and OK pressed, so do the corresponding function
+ */
+ protected abstract void performFunction();
+
+ /**
+ * Create a description for the given multiple of the configured limit
+ * @param inMultiple multiple of selected limit
+ * @return language-specific String description for waypoint names
+ */
+ protected String createLimitDescription(int inMultiple)
+ {
+ if (_distLimitRadio.isSelected()
+ && _distanceField.getValue() > 0)
+ {
+ final int distLimit = inMultiple * _distanceField.getValue();
+ final String[] distUnits = {"kilometres", "metres", "miles"};
+ final String unitKey = "units." + distUnits[_distUnitsDropdown.getSelectedIndex()] + ".short";
+ return "" + distLimit + " " + I18nManager.getText(unitKey);
+ }
+ else if (_timeLimitRadio.isSelected())
+ {
+ final long timeLimitSecs = (long) getTimeLimitInSeconds() * inMultiple;
+ return new TimeDifference(timeLimitSecs).getDescription();
+ }
+ return null;
+ }
+}