X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fundo%2FUndoCutAndMove.java;fp=src%2Ftim%2Fprune%2Fundo%2FUndoCutAndMove.java;h=2a6f9ca10d56cd936861d3426fd6dbb10c92d9c3;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/undo/UndoCutAndMove.java b/src/tim/prune/undo/UndoCutAndMove.java
new file mode 100644
index 0000000..2a6f9ca
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+++ b/src/tim/prune/undo/UndoCutAndMove.java
@@ -0,0 +1,95 @@
+package tim.prune.undo;
+
+import tim.prune.I18nManager;
+import tim.prune.UpdateMessageBroker;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Track;
+import tim.prune.data.TrackInfo;
+
+/**
+ * Undo cut and move of a track section
+ */
+public class UndoCutAndMove implements UndoOperation
+{
+	/** Start and end indices of section */
+	private int _startIndex, _endIndex;
+	/** Index of move to point */
+	private int _moveToIndex;
+	/** First track point in section, next track point after where it was */
+	private DataPoint _firstTrackPoint = null, _followingTrackPoint = null;
+	/** Next track point after where it's being moved to */
+	private DataPoint _moveTrackPoint = null;
+	/** Segment flags for these points */
+	private boolean _firstSegmentFlag, _followingSegmentFlag, _moveToSegmentFlag;
+
+
+	/**
+	 * Constructor
+	 * @param inTrack track object for copying segment flags
+	 * @param inStart start index of section
+	 * @param inEnd end index of section
+	 * @param inMoveTo index of moveTo point
+	 */
+	public UndoCutAndMove(Track inTrack, int inStart, int inEnd, int inMoveTo)
+	{
+		_startIndex = inStart;
+		_endIndex = inEnd;
+		_moveToIndex = inMoveTo;
+		// Look for first track point in section to be moved, store flag
+		_firstTrackPoint = inTrack.getNextTrackPoint(inStart);
+		if (_firstTrackPoint != null) {
+			_firstSegmentFlag = _firstTrackPoint.getSegmentStart();
+		}
+		// Look for following track point, store flag
+		_followingTrackPoint = inTrack.getNextTrackPoint(inEnd + 1);
+		if (_followingTrackPoint != null) {
+			_followingSegmentFlag = _followingTrackPoint.getSegmentStart();
+		}
+		// Look for next track point after move point, store flag
+		_moveTrackPoint = inTrack.getNextTrackPoint(inMoveTo);
+		if (_moveTrackPoint != null) {
+			_moveToSegmentFlag = _moveTrackPoint.getSegmentStart();
+		}
+	}
+
+
+	/**
+	 * @return description of operation including number of points moved
+	 */
+	public String getDescription()
+	{
+		return I18nManager.getText("undo.cutandmove") + " (" + (_endIndex - _startIndex + 1) + ")";
+	}
+
+
+	/**
+	 * 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
+	{
+		// Cut and move the section back to where it was before
+		int numMoved = _endIndex - _startIndex + 1;
+		// Calculate new positions depending on whether section was moved forward or backward
+		if (_startIndex > _moveToIndex)
+		{
+			inTrackInfo.getTrack().cutAndMoveSection(_moveToIndex, _moveToIndex + numMoved - 1, _startIndex + numMoved);
+		}
+		else
+		{
+			inTrackInfo.getTrack().cutAndMoveSection(_moveToIndex - numMoved, _moveToIndex - 1, _startIndex);
+		}
+		// Restore segment start flags
+		if (_firstTrackPoint != null) {
+			_firstTrackPoint.setSegmentStart(_firstSegmentFlag);
+		}
+		if (_followingTrackPoint != null) {
+			_followingTrackPoint.setSegmentStart(_followingSegmentFlag);
+		}
+		if (_moveTrackPoint != null) {
+			_moveTrackPoint.setSegmentStart(_moveToSegmentFlag);
+		}
+		inTrackInfo.getSelection().clearAll();
+		UpdateMessageBroker.informSubscribers();
+	}
+}