tim/prune/undo/UndoDeletePoint.java

   1 package tim.prune.undo;\r
   2 \r
   3 import tim.prune.I18nManager;\r
   4 import tim.prune.data.DataPoint;\r
   5 import tim.prune.data.TrackInfo;\r
   6 \r
   7 /**\r
   8  * Operation to undo a delete of a single point\r
   9  */\r
  10 public class UndoDeletePoint extends UndoDeleteOperation\r
  11 {\r
  12         private int _pointIndex = -1;\r
  13         private DataPoint _point = null;\r
  14         private int _photoIndex = -1;\r
  15         private int _audioIndex = -1;\r
  16         private boolean _segmentStart = false;\r
  17 \r
  18 \r
  19         /**\r
  20          * Constructor\r
  21          * @param inPointIndex index number of point within track\r
  22          * @param inPoint data point\r
  23          * @param inPhotoIndex index number of photo within photo list\r
  24          * @param inAudioIndex index number of audio within audio list\r
  25          * @param inSegmentStart true if following track point starts new segment\r
  26          */\r
  27         public UndoDeletePoint(int inPointIndex, DataPoint inPoint, int inPhotoIndex, int inAudioIndex,\r
  28                 boolean inSegmentStart)\r
  29         {\r
  30                 _pointIndex = inPointIndex;\r
  31                 _point = inPoint;\r
  32                 _photoIndex = inPhotoIndex;\r
  33                 _audioIndex = inAudioIndex;\r
  34                 _segmentStart = inSegmentStart;\r
  35         }\r
  36 \r
  37 \r
  38         /**\r
  39          * @return description of operation including point name if any\r
  40          */\r
  41         public String getDescription()\r
  42         {\r
  43                 String desc = I18nManager.getText("undo.deletepoint");\r
  44                 String pointName = _point.getWaypointName();\r
  45                 if (pointName != null && !pointName.equals(""))\r
  46                         desc = desc + " " + pointName;\r
  47                 return desc;\r
  48         }\r
  49 \r
  50 \r
  51         /**\r
  52          * Perform the undo operation on the given Track\r
  53          * @param inTrackInfo TrackInfo object on which to perform the operation\r
  54          */\r
  55         public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
  56         {\r
  57                 // restore point into track\r
  58                 if (!inTrackInfo.getTrack().insertPoint(_point, _pointIndex))\r
  59                 {\r
  60                         throw new UndoException(getDescription());\r
  61                 }\r
  62                 // Re-attach / Re-insert photo into list if necessary\r
  63                 if (_point.getPhoto() != null && _photoIndex > -1)\r
  64                 {\r
  65                         // Check if photo is still in list\r
  66                         if (!inTrackInfo.getPhotoList().contains(_point.getPhoto()))\r
  67                         {\r
  68                                 // photo has been removed - need to reinsert\r
  69                                 inTrackInfo.getPhotoList().addPhoto(_point.getPhoto(), _photoIndex);\r
  70                         }\r
  71                         // Ensure that photo is associated with point\r
  72                         if (_point.getPhoto().getDataPoint() != _point) {\r
  73                                 _point.getPhoto().setDataPoint(_point);\r
  74                         }\r
  75                 }\r
  76                 // Re-add audio as well if necessary\r
  77                 if (_point.getAudio() != null && _audioIndex > -1)\r
  78                 {\r
  79                         // add audio object to list\r
  80                         inTrackInfo.getAudioList().addAudio(_point.getAudio(), _audioIndex);\r
  81                         _point.getAudio().setDataPoint(_point);\r
  82                 }\r
  83                 // Restore previous status of following track point if necessary\r
  84                 if (!_segmentStart)\r
  85                 {\r
  86                         // Deletion of point can only set following point to true, so only need to set it back to false\r
  87                         DataPoint nextTrackPoint = inTrackInfo.getTrack().getNextTrackPoint(_pointIndex + 1);\r
  88                         if (nextTrackPoint != null) {\r
  89                                 nextTrackPoint.setSegmentStart(false);\r
  90                         }\r
  91                 }\r
  92                 // If there's a current point or range selected, maybe need to adjust start and/or end\r
  93                 modifySelection(inTrackInfo, _pointIndex, _pointIndex);\r
  94         }\r
  95 }\r