X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fundo%2FUndoCorrelatePhotos.java;fp=src%2Ftim%2Fprune%2Fundo%2FUndoCorrelatePhotos.java;h=9b8e1af35acad0d823600151d27b4b04f0f5b45b;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/undo/UndoCorrelatePhotos.java b/src/tim/prune/undo/UndoCorrelatePhotos.java
new file mode 100644
index 0000000..9b8e1af
--- /dev/null
+++ b/src/tim/prune/undo/UndoCorrelatePhotos.java
@@ -0,0 +1,80 @@
+package tim.prune.undo;
+
+import tim.prune.I18nManager;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Photo;
+import tim.prune.data.TrackInfo;
+
+/**
+ * Operation to undo an auto-correlation of photos with points
+ */
+public class UndoCorrelatePhotos implements UndoOperation
+{
+	private DataPoint[] _contents = null;
+	private DataPoint[] _photoPoints = null;
+	private int _numPhotosCorrelated = -1;
+
+
+	/**
+	 * Constructor
+	 * @param inTrackInfo track information
+	 */
+	public UndoCorrelatePhotos(TrackInfo inTrackInfo)
+	{
+		// Copy track contents
+		_contents = inTrackInfo.getTrack().cloneContents();
+		// Copy points associated with photos before correlation
+		int numPhotos = inTrackInfo.getPhotoList().getNumPhotos();
+		_photoPoints = new DataPoint[numPhotos];
+		for (int i=0; i<numPhotos; i++) {
+			_photoPoints[i] = inTrackInfo.getPhotoList().getPhoto(i).getDataPoint();
+		}
+	}
+
+	/**
+	 * @param inNumCorrelated number of photos correlated
+	 */
+	public void setNumPhotosCorrelated(int inNumCorrelated)
+	{
+		_numPhotosCorrelated = inNumCorrelated;
+	}
+
+	/**
+	 * @return description of operation including parameters
+	 */
+	public String getDescription()
+	{
+		return I18nManager.getText("undo.correlatephotos") + " (" + _numPhotosCorrelated + ")";
+	}
+
+
+	/**
+	 * Perform the undo operation on the given Track
+	 * @param inTrackInfo TrackInfo object on which to perform the operation
+	 */
+	public void performUndo(TrackInfo inTrackInfo) throws UndoException
+	{
+		// restore track to previous values
+		inTrackInfo.getTrack().replaceContents(_contents);
+		// restore photo association
+		for (int i=0; i<_photoPoints.length; i++)
+		{
+			Photo photo = inTrackInfo.getPhotoList().getPhoto(i);
+			// Only need to look at connected photos, since correlation wouldn't disconnect
+			if (photo.getCurrentStatus() == Photo.Status.CONNECTED)
+			{
+				DataPoint prevPoint = _photoPoints[i];
+				DataPoint currPoint = photo.getDataPoint();
+				photo.setDataPoint(prevPoint);
+				if (currPoint != null) {
+					currPoint.setPhoto(null); // disconnect
+				}
+				if (prevPoint != null) {
+					prevPoint.setPhoto(photo); // reconnect to prev point
+				}
+			}
+		}
+		// clear selection
+		inTrackInfo.getSelection().clearAll();
+	}
+}