X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=tim%2Fprune%2Fundo%2FUndoAppendPoints.java;fp=tim%2Fprune%2Fundo%2FUndoAppendPoints.java;h=14e147b7913b6be04912cbbc6ca42f5c37652826;hp=0000000000000000000000000000000000000000;hb=92dad5df664287acb51728e9ea599f150765d34a;hpb=81843c3d8d0771bf00d0f26034a13aa515465c78

diff --git a/tim/prune/undo/UndoAppendPoints.java b/tim/prune/undo/UndoAppendPoints.java
new file mode 100644
index 0000000..14e147b
--- /dev/null
+++ b/tim/prune/undo/UndoAppendPoints.java
@@ -0,0 +1,51 @@
+package tim.prune.undo;
+
+import tim.prune.I18nManager;
+import tim.prune.data.TrackInfo;
+
+/**
+ * Operation to undo an operation (such as create marker waypoints)
+ * in which a number of points were appended to the track
+ */
+public class UndoAppendPoints implements UndoOperation
+{
+	private int _previousTrackLength = -1;
+	private int _numAppended = 0;
+
+
+	/**
+	 * Constructor
+	 */
+	public UndoAppendPoints(int inTrackLength)
+	{
+		_previousTrackLength = inTrackLength;
+	}
+
+	/**
+	 * @param inNumPoints number of points appended to track
+	 */
+	public void setNumPointsAppended(int inNumPoints)
+	{
+		_numAppended = inNumPoints;
+	}
+
+	/**
+	 * @return description of operation including number of points loaded
+	 */
+	public String getDescription()
+	{
+		return I18nManager.getText("undo.insert") + " (" + _numAppended + ")";
+	}
+
+	/**
+	 * 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
+	{
+		// crop track to previous size
+		inTrackInfo.getTrack().cropTo(_previousTrackLength);
+		// clear selection
+		inTrackInfo.getSelection().clearAll();
+	}
+}