+package tim.prune.load.babel;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.GridLayout;
+
+import javax.swing.Box;
+import javax.swing.BoxLayout;
+import javax.swing.JComboBox;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+
+import tim.prune.I18nManager;
+import tim.prune.gui.DecimalNumberField;
+import tim.prune.gui.WholeNumberField;
+
+/**
+ * Distance filter for GPSBabel (compress by distance, or nearby points)
+ */
+public class DistanceFilter extends FilterDefinition
+{
+ /** Constructor */
+ public DistanceFilter(AddFilterDialog inFilterDialog)
+ {
+ super(inFilterDialog);
+ makePanelContents();
+ }
+
+ private DecimalNumberField _distField = null;
+ private JComboBox<String> _distUnitsCombo = null;
+ private WholeNumberField _secondsField = null;
+
+
+ /** @return filter name */
+ protected String getFilterName() {
+ return "position";
+ }
+
+ /** Make the panel contents */
+ protected void makePanelContents()
+ {
+ setLayout(new BorderLayout());
+ JPanel boxPanel = new JPanel();
+ boxPanel.setLayout(new BoxLayout(boxPanel, BoxLayout.Y_AXIS));
+ add(boxPanel, BorderLayout.NORTH);
+ JLabel topLabel = new JLabel(I18nManager.getText("dialog.gpsbabel.filter.distance.intro"));
+ topLabel.setAlignmentX(Component.LEFT_ALIGNMENT);
+ boxPanel.add(topLabel);
+ boxPanel.add(Box.createVerticalStrut(18)); // spacer
+ // Main three-column grid
+ JPanel gridPanel = new JPanel();
+ gridPanel.setLayout(new GridLayout(0, 3, 4, 4));
+ gridPanel.add(new JLabel(I18nManager.getText("dialog.gpsbabel.filter.distance.distance")));
+ _distField = new DecimalNumberField();
+ _distField.addKeyListener(_paramChangeListener);
+ gridPanel.add(_distField);
+ _distUnitsCombo = new JComboBox<String>(new String[] {I18nManager.getText("units.metres"), I18nManager.getText("units.feet")});
+ gridPanel.add(_distUnitsCombo);
+ gridPanel.add(new JLabel(I18nManager.getText("dialog.gpsbabel.filter.distance.time")));
+ _secondsField = new WholeNumberField(4);
+ _secondsField.addKeyListener(_paramChangeListener);
+ gridPanel.add(_secondsField);
+ gridPanel.add(new JLabel(I18nManager.getText("units.seconds")));
+ gridPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
+ boxPanel.add(gridPanel);
+ }
+
+ /**
+ * @return true if the filters are valid
+ */
+ public boolean isFilterValid()
+ {
+ if (_distField.getText() == null || _distField.getText().trim().equals("")) {
+ return false; // no distance given
+ }
+ final boolean timeGiven = _secondsField.getText() != null && _secondsField.getText().trim().length() > 0;
+ if (timeGiven && _secondsField.getValue() <= 1) {
+ return false; // must have a decent number of seconds
+ }
+ // check the distance
+ return (_distField.getValue() > 0.001); // no zero or negative distances allowed
+ }
+
+ /**
+ * @return filter parameters as a string, or null
+ */
+ protected String getParameters()
+ {
+ if (!isFilterValid()) return null;
+ StringBuilder builder = new StringBuilder();
+ // Get the distance
+ double dValue = _distField.getValue();
+ builder.append(",distance=").append(dValue);
+ // units of distance (miles by default)
+ builder.append(_distUnitsCombo.getSelectedIndex() == 0 ? "m" : "f"); // metres or feet
+
+ // is there a time as well?
+ final boolean timeGiven = _secondsField.getText() != null && _secondsField.getText().trim().length() > 0;
+ if (timeGiven) {
+ builder.append(",time=").append(_secondsField.getValue()); // no s at the end
+ }
+ return builder.toString();
+ }
+}