--- /dev/null
+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.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+import javax.swing.SwingConstants;
+
+import tim.prune.App;
+import tim.prune.GenericFunction;
+import tim.prune.I18nManager;
+import tim.prune.config.Config;
+import tim.prune.data.Coordinate;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Distance;
+import tim.prune.data.Field;
+import tim.prune.data.Latitude;
+import tim.prune.data.Longitude;
+import tim.prune.data.Unit;
+import tim.prune.data.UnitSetLibrary;
+import tim.prune.gui.DecimalNumberField;
+import tim.prune.gui.GuiGridLayout;
+import tim.prune.gui.WholeNumberField;
+
+
+/**
+ * Class to provide the function to project the current point
+ * with a given bearing and distance
+ */
+public class ProjectPoint extends GenericFunction
+{
+ private JDialog _dialog = null;
+ private WholeNumberField _bearingField = null;
+ private JLabel _distanceDescLabel = null;
+ private DecimalNumberField _distanceField = null;
+ private boolean _distanceIsMetric = true;
+ private JTextField _nameField = null;
+ private JButton _okButton = null;
+
+
+ /**
+ * Constructor
+ * @param inApp application object for callback
+ */
+ public ProjectPoint(App inApp)
+ {
+ super(inApp);
+ }
+
+ /** Get the name key */
+ public String getNameKey() {
+ return "function.projectpoint";
+ }
+
+ /**
+ * Begin the function
+ */
+ public void begin()
+ {
+ // Make dialog window
+ 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();
+ }
+
+ // Clear fields
+ _bearingField.setText("");
+ _distanceField.setText("");
+ _nameField.setText("");
+ // Set the units of the distance label
+ setLabelText();
+ enableOK();
+ _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(0, 10));
+ dialogPanel.add(new JLabel(I18nManager.getText("dialog.projectpoint.desc")), BorderLayout.NORTH);
+ JPanel mainPanel = new JPanel();
+ GuiGridLayout grid = new GuiGridLayout(mainPanel);
+ _bearingField = new WholeNumberField(3);
+ _distanceField = new DecimalNumberField(false);
+ // Listeners to enable/disable ok button
+ KeyAdapter keyListener = new KeyAdapter() {
+ /** Key released */
+ public void keyReleased(KeyEvent inE) {
+ enableOK();
+ if (inE.getKeyCode() == KeyEvent.VK_ESCAPE) {
+ _dialog.dispose();
+ }
+ }
+ };
+ MouseAdapter mouseListener = new MouseAdapter() {
+ public void mouseReleased(MouseEvent inE) {
+ enableOK();
+ }
+ };
+ _bearingField.addKeyListener(keyListener);
+ _bearingField.addMouseListener(mouseListener);
+ _distanceField.addKeyListener(keyListener);
+ _distanceField.addMouseListener(mouseListener);
+
+ JLabel bearingLabel = new JLabel(I18nManager.getText("dialog.projectpoint.bearing"));
+ bearingLabel.setHorizontalAlignment(SwingConstants.RIGHT);
+ grid.add(bearingLabel);
+ grid.add(_bearingField);
+
+ // Distance including units
+ _distanceDescLabel = new JLabel(I18nManager.getText("fieldname.distance") + " (ft)");
+ // Note, this label will be reset at each run
+ _distanceDescLabel.setHorizontalAlignment(SwingConstants.RIGHT);
+ grid.add(_distanceDescLabel);
+ grid.add(_distanceField);
+
+ // Waypoint name
+ JLabel nameLabel = new JLabel(I18nManager.getText("dialog.pointnameedit.name"));
+ nameLabel.setHorizontalAlignment(SwingConstants.RIGHT);
+ grid.add(nameLabel);
+ _nameField = new JTextField("", 12);
+ grid.add(_nameField);
+ dialogPanel.add(mainPanel, BorderLayout.CENTER);
+ // button panel at bottom
+ JPanel buttonPanel = new JPanel();
+ buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+ _okButton = new JButton(I18nManager.getText("button.ok"));
+ ActionListener okListener = new ActionListener() {
+ public void actionPerformed(ActionEvent e)
+ {
+ if (_okButton.isEnabled()) {finish();}
+ }
+ };
+ _okButton.addActionListener(okListener);
+ _okButton.setEnabled(false);
+
+ buttonPanel.add(_okButton);
+ JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
+ cancelButton.addActionListener(new ActionListener() {
+ public void actionPerformed(ActionEvent e)
+ {
+ _dialog.dispose();
+ }
+ });
+ buttonPanel.add(cancelButton);
+ dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
+ dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
+ return dialogPanel;
+ }
+
+ /**
+ * Set the label text according to the current units
+ */
+ private void setLabelText()
+ {
+ Unit distUnit = Config.getUnitSet().getDistanceUnit();
+ _distanceIsMetric = (distUnit == UnitSetLibrary.UNITS_METRES || distUnit == UnitSetLibrary.UNITS_KILOMETRES);
+ distUnit = _distanceIsMetric ? UnitSetLibrary.UNITS_METRES : UnitSetLibrary.UNITS_FEET;
+ final String unitKey = distUnit.getShortnameKey();
+ _distanceDescLabel.setText(I18nManager.getText("fieldname.distance") + " (" + I18nManager.getText(unitKey) + ")");
+ }
+
+ /**
+ * Enable or disable the OK button based on the contents of the input fields
+ */
+ private void enableOK()
+ {
+ final boolean bearingOk = !_bearingField.getText().isEmpty()
+ && _bearingField.getValue() < 360;
+ final boolean distanceOk = _distanceField.getValue() > 0.0;
+ _okButton.setEnabled(bearingOk && distanceOk);
+ }
+
+ /**
+ * Finish the dialog when OK pressed
+ */
+ private void finish()
+ {
+ DataPoint currPoint = _app.getTrackInfo().getCurrentPoint();
+ Unit distUnit = _distanceIsMetric ? UnitSetLibrary.UNITS_METRES : UnitSetLibrary.UNITS_FEET;
+ final double projectRads = Distance.convertDistanceToRadians(_distanceField.getValue(), distUnit);
+ final double origLatRads = Math.toRadians(currPoint.getLatitude().getDouble());
+ final double origLonRads = Math.toRadians(currPoint.getLongitude().getDouble());
+ System.out.println("Project from: " + origLatRads + ", " + origLonRads);
+ final double bearingRads = Math.toRadians(_bearingField.getValue());
+
+ double lat2 = Math.asin(Math.sin(origLatRads) * Math.cos(projectRads)
+ + Math.cos(origLatRads) * Math.sin(projectRads) * Math.cos(bearingRads));
+ double lon2 = origLonRads + Math.atan2(Math.sin(bearingRads) * Math.sin(projectRads) * Math.cos(origLatRads),
+ Math.cos(projectRads) - Math.sin(origLatRads) * Math.sin(lat2));
+
+ double finalLatDeg = Math.toDegrees(lat2);
+ double finalLonDeg = Math.toDegrees(lon2);
+ System.out.println("Result is: lat=" + finalLatDeg + ", lon=" + finalLonDeg);
+
+ // Create point and append to track
+ DataPoint point = new DataPoint(new Latitude(finalLatDeg, Coordinate.FORMAT_DEG),
+ new Longitude(finalLonDeg, Coordinate.FORMAT_DEG), null);
+ point.setFieldValue(Field.WAYPT_NAME, _nameField.getText(), false);
+ _app.createPoint(point);
+
+ _dialog.dispose();
+ }
+}
projects / GpsPrune.git / blobdiff