tim/prune/gui/SelectorDisplay.java

   1 package tim.prune.gui;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Component;
   5 import java.awt.Dimension;
   6 import java.awt.Font;
   7 import java.awt.GridLayout;
   8 import java.awt.event.AdjustmentEvent;
   9 import java.awt.event.AdjustmentListener;
  10
  11 import javax.swing.BorderFactory;
  12 import javax.swing.Box;
  13 import javax.swing.BoxLayout;
  14 import javax.swing.JLabel;
  15 import javax.swing.JList;
  16 import javax.swing.JPanel;
  17 import javax.swing.JScrollBar;
  18 import javax.swing.JScrollPane;
  19 import javax.swing.border.EtchedBorder;
  20 import javax.swing.event.ListSelectionEvent;
  21 import javax.swing.event.ListSelectionListener;
  22
  23 import tim.prune.DataSubscriber;
  24 import tim.prune.I18nManager;
  25 import tim.prune.data.TrackInfo;
  26
  27 /**
  28  * Class to allow selection of points and photos
  29  * as a visual component
  30  */
  31 public class SelectorDisplay extends GenericDisplay
  32 {
  33         // Track details
  34         private JLabel _trackpointsLabel = null;
  35         private JLabel _filenameLabel = null;
  36         // Scroll bar
  37         private JScrollBar _scroller = null;
  38         private boolean _ignoreScrollEvents = false;
  39
  40         // Photos
  41         private JList _photoList = null;
  42         private PhotoListModel _photoListModel = null;
  43         // Waypoints
  44         private JList _waypointList = null;
  45         private WaypointListModel _waypointListModel = null;
  46
  47         // scrollbar interval
  48         private static final int SCROLLBAR_INTERVAL = 50;
  49         // number of rows in lists
  50         private static final int NUM_LIST_ENTRIES = 7;
  51
  52
  53         /**
  54          * Constructor
  55          * @param inTrackInfo Track info object
  56          */
  57         public SelectorDisplay(TrackInfo inTrackInfo)
  58         {
  59                 super(inTrackInfo);
  60                 setLayout(new BorderLayout());
  61
  62                 JPanel mainPanel = new JPanel();
  63                 mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
  64                 mainPanel.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
  65
  66                 // Track details panel
  67                 JPanel trackDetailsPanel = new JPanel();
  68                 trackDetailsPanel.setLayout(new BoxLayout(trackDetailsPanel, BoxLayout.Y_AXIS));
  69                 trackDetailsPanel.setBorder(BorderFactory.createCompoundBorder(
  70                         BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
  71                 );
  72                 JLabel trackDetailsLabel = new JLabel(I18nManager.getText("details.trackdetails"));
  73                 Font biggerFont = trackDetailsLabel.getFont();
  74                 biggerFont = biggerFont.deriveFont(Font.BOLD, biggerFont.getSize2D() + 2.0f);
  75                 trackDetailsLabel.setFont(biggerFont);
  76                 trackDetailsPanel.add(trackDetailsLabel);
  77                 _trackpointsLabel = new JLabel(I18nManager.getText("details.notrack"));
  78                 trackDetailsPanel.add(_trackpointsLabel);
  79                 _filenameLabel = new JLabel("");
  80                 trackDetailsPanel.add(_filenameLabel);
  81
  82                 // Scroll bar
  83                 _scroller = new JScrollBar(JScrollBar.HORIZONTAL, 0, SCROLLBAR_INTERVAL, 0, 100);
  84                 _scroller.addAdjustmentListener(new AdjustmentListener() {
  85                         public void adjustmentValueChanged(AdjustmentEvent e)
  86                         {
  87                                 selectPoint(e.getValue());
  88                         }
  89                 });
  90                 _scroller.setEnabled(false);
  91
  92                 // Add panel for waypoints / photos
  93                 JPanel listsPanel = new JPanel();
  94                 listsPanel.setLayout(new GridLayout(0, 1));
  95                 listsPanel.setBorder(BorderFactory.createCompoundBorder(
  96                         BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
  97                 );
  98                 _waypointListModel = new WaypointListModel(_trackInfo.getTrack());
  99                 _waypointList = new JList(_waypointListModel);
 100                 _waypointList.setVisibleRowCount(NUM_LIST_ENTRIES);
 101                 _waypointList.addListSelectionListener(new ListSelectionListener() {
 102                         public void valueChanged(ListSelectionEvent e)
 103                         {
 104                                 if (!e.getValueIsAdjusting()) selectWaypoint(_waypointList.getSelectedIndex());
 105                         }});
 106                 JPanel waypointListPanel = new JPanel();
 107                 waypointListPanel.setLayout(new BorderLayout());
 108                 waypointListPanel.add(new JLabel(I18nManager.getText("details.waypointsphotos.waypoints")), BorderLayout.NORTH);
 109                 waypointListPanel.add(new JScrollPane(_waypointList), BorderLayout.CENTER);
 110                 listsPanel.add(waypointListPanel);
 111                 // photo list
 112                 _photoListModel = new PhotoListModel(_trackInfo.getPhotoList());
 113                 _photoList = new JList(_photoListModel);
 114                 _photoList.setVisibleRowCount(NUM_LIST_ENTRIES);
 115                 _photoList.addListSelectionListener(new ListSelectionListener() {
 116                         public void valueChanged(ListSelectionEvent e)
 117                         {
 118                                 if (!e.getValueIsAdjusting()) {
 119                                         selectPhoto(_photoList.getSelectedIndex());
 120                                 }
 121                         }});
 122                 JPanel photoListPanel = new JPanel();
 123                 photoListPanel.setLayout(new BorderLayout());
 124                 photoListPanel.add(new JLabel(I18nManager.getText("details.waypointsphotos.photos")), BorderLayout.NORTH);
 125                 photoListPanel.add(new JScrollPane(_photoList), BorderLayout.CENTER);
 126                 listsPanel.add(photoListPanel);
 127                 listsPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
 128
 129                 // add the controls to the main panel
 130                 mainPanel.add(trackDetailsPanel);
 131                 mainPanel.add(Box.createVerticalStrut(5));
 132                 mainPanel.add(_scroller);
 133                 mainPanel.add(Box.createVerticalStrut(5));
 134
 135                 // add the main panel at the top
 136                 add(mainPanel, BorderLayout.NORTH);
 137                 // and lists in the centre
 138                 add(listsPanel, BorderLayout.CENTER);
 139                 // set preferred width to be small
 140                 setPreferredSize(new Dimension(100, 100));
 141         }
 142
 143
 144         /**
 145          * Select the specified point
 146          * @param inValue value to select
 147          */
 148         private void selectPoint(int inValue)
 149         {
 150                 if (_track != null && !_ignoreScrollEvents)
 151                 {
 152                         _trackInfo.selectPoint(inValue);
 153                 }
 154         }
 155
 156
 157         /**
 158          * Select the specified photo
 159          * @param inPhotoIndex index of selected photo
 160          */
 161         private void selectPhoto(int inPhotoIndex)
 162         {
 163                 _trackInfo.selectPhoto(inPhotoIndex);
 164         }
 165
 166
 167         /**
 168          * Select the specified waypoint
 169          * @param inWaypointIndex index of selected waypoint
 170          */
 171         private void selectWaypoint(int inWaypointIndex)
 172         {
 173                 if (inWaypointIndex >= 0)
 174                 {
 175                         _trackInfo.selectPoint(_waypointListModel.getWaypoint(inWaypointIndex));
 176                 }
 177         }
 178
 179
 180         /**
 181          * Notification that Track has been updated
 182          */
 183         public void dataUpdated(byte inUpdateType)
 184         {
 185                 // Update track data
 186                 if (_track == null || _track.getNumPoints() <= 0)
 187                 {
 188                         _trackpointsLabel.setText(I18nManager.getText("details.notrack"));
 189                         _filenameLabel.setText("");
 190                 }
 191                 else
 192                 {
 193                         _trackpointsLabel.setText(I18nManager.getText("details.track.points") + ": "
 194                                 + _track.getNumPoints());
 195                         int numFiles = _trackInfo.getFileInfo().getNumFiles();
 196                         if (numFiles == 1)
 197                         {
 198                                 _filenameLabel.setText(I18nManager.getText("details.track.file") + ": "
 199                                         + _trackInfo.getFileInfo().getFilename());
 200                         }
 201                         else if (numFiles > 1)
 202                         {
 203                                 _filenameLabel.setText(I18nManager.getText("details.track.numfiles") + ": "
 204                                         + numFiles);
 205                         }
 206                         else _filenameLabel.setText("");
 207                 }
 208
 209                 // Update scroller settings
 210                 int currentPointIndex = _trackInfo.getSelection().getCurrentPointIndex();
 211                 _ignoreScrollEvents = true;
 212                 if (_track == null || _track.getNumPoints() < 2)
 213                 {
 214                         // careful to avoid event loops here
 215                         // _scroller.setValue(0);
 216                         _scroller.setEnabled(false);
 217                 }
 218                 else
 219                 {
 220                         _scroller.setMaximum(_track.getNumPoints() -1 + SCROLLBAR_INTERVAL);
 221                         if (currentPointIndex >= 0)
 222                                 _scroller.setValue(currentPointIndex);
 223                         _scroller.setEnabled(true);
 224                 }
 225                 _ignoreScrollEvents = false;
 226
 227                 // update waypoints and photos if necessary
 228                 if ((inUpdateType |
 229                         (DataSubscriber.DATA_ADDED_OR_REMOVED | DataSubscriber.DATA_EDITED | DataSubscriber.WAYPOINTS_MODIFIED)) > 0)
 230                 {
 231                         _waypointListModel.fireChanged();
 232                 }
 233                 if ((inUpdateType |
 234                         (DataSubscriber.DATA_ADDED_OR_REMOVED | DataSubscriber.DATA_EDITED | DataSubscriber.PHOTOS_MODIFIED)) > 0)
 235                 {
 236                         _photoListModel.fireChanged();
 237                 }
 238                 // Deselect selected waypoint if selected point has since changed
 239                 if (_waypointList.getSelectedIndex() >= 0)
 240                 {
 241                         if (_trackInfo.getCurrentPoint() == null
 242                          || _waypointList.getSelectedIndex() >= _waypointListModel.getSize()
 243                          || !_waypointListModel.getWaypoint(_waypointList.getSelectedIndex()).equals(_trackInfo.getCurrentPoint()))
 244                         {
 245                                 // point is selected in list but different from current point - deselect
 246                                 _waypointList.clearSelection();
 247                         }
 248                 }
 249                 // Make sure correct photo is selected
 250                 if (_photoListModel.getSize() > 0)
 251                 {
 252                         int photoIndex = _trackInfo.getSelection().getCurrentPhotoIndex();
 253                         int listSelection = _photoList.getSelectedIndex();
 254                         // Change listbox selection if indexes not equal
 255                         if (listSelection != photoIndex)
 256                         {
 257                                 if (photoIndex < 0) {
 258                                         _photoList.clearSelection();
 259                                 }
 260                                 else {
 261                                         _photoList.setSelectedIndex(photoIndex);
 262                                 }
 263                         }
 264                 }
 265         }
 266 }