tim/prune/undo/UndoCorrelatePhotos.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.Photo;\r
   6 import tim.prune.data.TrackInfo;\r
   7 \r
   8 /**\r
   9  * Operation to undo an auto-correlation of photos with points\r
  10  */\r
  11 public class UndoCorrelatePhotos implements UndoOperation\r
  12 {\r
  13         private DataPoint[] _contents = null;\r
  14         private DataPoint[] _photoPoints = null;\r
  15         private int _numPhotosCorrelated = -1;\r
  16 \r
  17 \r
  18         /**\r
  19          * Constructor\r
  20          * @param inTrackInfo track information\r
  21          */\r
  22         public UndoCorrelatePhotos(TrackInfo inTrackInfo)\r
  23         {\r
  24                 // Copy track contents\r
  25                 _contents = inTrackInfo.getTrack().cloneContents();\r
  26                 // Copy points associated with photos before correlation\r
  27                 int numPhotos = inTrackInfo.getPhotoList().getNumPhotos();\r
  28                 _photoPoints = new DataPoint[numPhotos];\r
  29                 for (int i=0; i<numPhotos; i++) {\r
  30                         _photoPoints[i] = inTrackInfo.getPhotoList().getPhoto(i).getDataPoint();\r
  31                 }\r
  32         }\r
  33 \r
  34         /**\r
  35          * @param inNumCorrelated number of photos correlated\r
  36          */\r
  37         public void setNumPhotosCorrelated(int inNumCorrelated)\r
  38         {\r
  39                 _numPhotosCorrelated = inNumCorrelated;\r
  40         }\r
  41 \r
  42         /**\r
  43          * @return description of operation including parameters\r
  44          */\r
  45         public String getDescription()\r
  46         {\r
  47                 return I18nManager.getText("undo.correlatephotos") + " (" + _numPhotosCorrelated + ")";\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 track to previous values\r
  58                 inTrackInfo.getTrack().replaceContents(_contents);\r
  59                 // restore photo association\r
  60                 for (int i=0; i<_photoPoints.length; i++)\r
  61                 {\r
  62                         Photo photo = inTrackInfo.getPhotoList().getPhoto(i);\r
  63                         // Only need to look at connected photos, since correlation wouldn't disconnect\r
  64                         if (photo.getCurrentStatus() == Photo.Status.CONNECTED)\r
  65                         {\r
  66                                 DataPoint prevPoint = _photoPoints[i];\r
  67                                 DataPoint currPoint = photo.getDataPoint();\r
  68                                 photo.setDataPoint(prevPoint);\r
  69                                 if (currPoint != null) {\r
  70                                         currPoint.setPhoto(null); // disconnect\r
  71                                 }\r
  72                                 if (prevPoint != null) {\r
  73                                         prevPoint.setPhoto(photo); // reconnect to prev point\r
  74                                 }\r
  75                         }\r
  76                 }\r
  77                 // clear selection\r
  78                 inTrackInfo.getSelection().clearAll();\r
  79         }\r
  80 }\r