X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fundo%2FUndoConvertNamesToTimes.java;fp=src%2Ftim%2Fprune%2Fundo%2FUndoConvertNamesToTimes.java;h=dc0ffbeccce1290de451c9b2d6fe050a2ea84752;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/undo/UndoConvertNamesToTimes.java b/src/tim/prune/undo/UndoConvertNamesToTimes.java
new file mode 100644
index 0000000..dc0ffbe
--- /dev/null
+++ b/src/tim/prune/undo/UndoConvertNamesToTimes.java
@@ -0,0 +1,81 @@
+package tim.prune.undo;
+
+import tim.prune.I18nManager;
+import tim.prune.UpdateMessageBroker;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Field;
+import tim.prune.data.Track;
+import tim.prune.data.TrackInfo;
+
+/**
+ * Operation to undo a conversion from names to times
+ */
+public class UndoConvertNamesToTimes implements UndoOperation
+{
+	/** Start and end indices of section */
+	private int _startIndex, _endIndex;
+	/** Waypoint names before operation */
+	private String[] _waypointNames = null;
+	/** Timestamp strings before operation */
+	private String[] _timestamps = null;
+
+	/**
+	 * Constructor
+	 * @param inTrackInfo track info object to copy values from
+	 */
+	public UndoConvertNamesToTimes(TrackInfo inTrackInfo)
+	{
+		_startIndex = inTrackInfo.getSelection().getStart();
+		_endIndex = inTrackInfo.getSelection().getEnd();
+		final int numPoints = _endIndex - _startIndex + 1;
+		_waypointNames = new String[numPoints];
+		_timestamps = new String[numPoints];
+		// Loop over points in selection, and copy names and timestamps
+		for (int i=_startIndex; i<=_endIndex; i++)
+		{
+			DataPoint point = inTrackInfo.getTrack().getPoint(i);
+			if (point.isWaypoint())
+			{
+				_waypointNames[i-_startIndex] = point.getWaypointName();
+				_timestamps[i-_startIndex] = point.getFieldValue(Field.TIMESTAMP);
+			}
+		}
+	}
+
+
+	/**
+	 * @return description of operation
+	 */
+	public String getDescription()
+	{
+		return I18nManager.getText("undo.convertnamestotimes");
+	}
+
+
+	/**
+	 * 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
+	{
+		// Sanity check
+		Track track = inTrackInfo.getTrack();
+		if (track.getNumPoints() <= _endIndex || _endIndex <= _startIndex) {
+			throw new UndoException("Cannot undo conversion, track length doesn't match");
+		}
+		// Loop over points in selection and replace names and timestamps
+		for (int i=_startIndex; i<=_endIndex; i++)
+		{
+			String storedName = _waypointNames[i-_startIndex];
+			if (storedName != null)
+			{
+				// point had a name before the operation, so might have been converted
+				DataPoint point = track.getPoint(i);
+				point.setFieldValue(Field.WAYPT_NAME, storedName, true);
+				point.setFieldValue(Field.TIMESTAMP, _timestamps[i-_startIndex], true);
+			}
+		}
+		track.requestRescale();
+		UpdateMessageBroker.informSubscribers();
+	}
+}