tim/prune/function/FindWaypoint.java

   1 package tim.prune.function;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Component;
   5 import java.awt.FlowLayout;
   6 import java.awt.event.ActionEvent;
   7 import java.awt.event.ActionListener;
   8 import java.awt.event.KeyAdapter;
   9 import java.awt.event.KeyEvent;
  10
  11 import javax.swing.BorderFactory;
  12 import javax.swing.BoxLayout;
  13 import javax.swing.JButton;
  14 import javax.swing.JDialog;
  15 import javax.swing.JLabel;
  16 import javax.swing.JList;
  17 import javax.swing.JPanel;
  18 import javax.swing.JScrollPane;
  19 import javax.swing.JTextField;
  20 import javax.swing.event.ListSelectionEvent;
  21 import javax.swing.event.ListSelectionListener;
  22
  23 import tim.prune.App;
  24 import tim.prune.GenericFunction;
  25 import tim.prune.I18nManager;
  26 import tim.prune.data.DataPoint;
  27 import tim.prune.gui.WaypointNameMatcher;
  28
  29 /**
  30  * Class to provide the function to find a waypoint by name
  31  */
  32 public class FindWaypoint extends GenericFunction
  33 {
  34         private WaypointNameMatcher _nameMatcher = null;
  35         private JDialog _dialog = null;
  36         private JTextField _searchField = null;
  37         private JList<String> _pointList = null;
  38         private JButton _okButton = null;
  39
  40
  41         /**
  42          * Constructor
  43          * @param inApp application object for callback
  44          */
  45         public FindWaypoint(App inApp)
  46         {
  47                 super(inApp);
  48         }
  49
  50         /** Get the name key */
  51         public String getNameKey() {
  52                 return "function.findwaypoint";
  53         }
  54
  55         /**
  56          * Begin the function
  57          */
  58         public void begin()
  59         {
  60                 // Make dialog window
  61                 if (_dialog == null)
  62                 {
  63                         _dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()), true);
  64                         _dialog.setLocationRelativeTo(_parentFrame);
  65                         _dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
  66                         _dialog.getContentPane().add(makeDialogComponents());
  67                         _dialog.pack();
  68                 }
  69                 // Initialise waypoint list from track
  70                 _nameMatcher.init(_app.getTrackInfo().getTrack());
  71                 // Show dialog
  72                 _searchField.setText("");
  73                 _dialog.setVisible(true);
  74         }
  75
  76
  77         /**
  78          * Create dialog components
  79          * @return Panel containing all gui elements in dialog
  80          */
  81         private Component makeDialogComponents()
  82         {
  83                 JPanel dialogPanel = new JPanel();
  84                 dialogPanel.setLayout(new BorderLayout());
  85                 JPanel topPanel = new JPanel();
  86                 topPanel.setLayout(new BoxLayout(topPanel, BoxLayout.Y_AXIS));
  87                 topPanel.add(new JLabel(I18nManager.getText("dialog.findwaypoint.intro")));
  88                 JPanel subPanel = new JPanel();
  89                 subPanel.add(new JLabel(I18nManager.getText("dialog.findwaypoint.search")));
  90                 _searchField = new JTextField(12);
  91                 _searchField.addKeyListener(new KeyAdapter() {
  92                         public void keyReleased(KeyEvent e)
  93                         {
  94                                 _nameMatcher.findMatches(_searchField.getText());
  95                                 if (_nameMatcher.getSize() == 0 || _nameMatcher.getSize() < _pointList.getSelectedIndex())
  96                                         _okButton.setEnabled(false);
  97                                 else if (_pointList.getSelectedIndex() >= 0)
  98                                         _okButton.setEnabled(true);
  99                                 // close dialog if escape pressed
 100                                 if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
 101                                         _dialog.dispose();
 102                                 }
 103                         }
 104                 });
 105                 subPanel.add(_searchField);
 106                 topPanel.add(subPanel);
 107                 dialogPanel.add(topPanel, BorderLayout.NORTH);
 108
 109                 // middle panel with list
 110                 _nameMatcher = new WaypointNameMatcher();
 111                 _pointList = new JList<String>(_nameMatcher);
 112                 _pointList.addListSelectionListener(new ListSelectionListener() {
 113                         public void valueChanged(ListSelectionEvent e)
 114                         {
 115                                 if (!e.getValueIsAdjusting()) _okButton.setEnabled(true);
 116                         }});
 117                 JScrollPane listPane = new JScrollPane(_pointList);
 118                 dialogPanel.add(listPane, BorderLayout.CENTER);
 119
 120                 // button panel at bottom
 121                 JPanel buttonPanel = new JPanel();
 122                 buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
 123                 _okButton = new JButton(I18nManager.getText("button.ok"));
 124                 ActionListener okListener = new ActionListener() {
 125                         public void actionPerformed(ActionEvent e)
 126                         {
 127                                 finish();
 128                         }
 129                 };
 130                 _okButton.addActionListener(okListener);
 131                 _okButton.setEnabled(false);
 132                 buttonPanel.add(_okButton);
 133                 JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
 134                 cancelButton.addActionListener(new ActionListener() {
 135                         public void actionPerformed(ActionEvent e)
 136                         {
 137                                 _dialog.dispose();
 138                         }
 139                 });
 140                 buttonPanel.add(cancelButton);
 141                 dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
 142                 dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
 143                 return dialogPanel;
 144         }
 145
 146         /**
 147          * Finish the dialog when OK pressed
 148          * Select the point and close the dialog
 149          */
 150         private void finish()
 151         {
 152                 DataPoint selectedPoint = _nameMatcher.getWaypoint(_pointList.getSelectedIndex());
 153                 _app.getTrackInfo().selectPoint(selectedPoint);
 154                 _dialog.dispose();
 155         }
 156 }