X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=tim%2Fprune%2FApp.java;h=e57dcf6d5d15364fd6c5ede5f509d28728531404;hp=71bd354172ee3df66957c75b6faf1a8c08369db2;hb=88f2c3647ed9e055090484f01a959d4581f85e7d;hpb=326f489e36aa7f235bc19409a57bf4955cd50f24

diff --git a/tim/prune/App.java b/tim/prune/App.java
index 71bd354..e57dcf6 100644
--- a/tim/prune/App.java
+++ b/tim/prune/App.java
@@ -60,7 +60,7 @@ public class App
 	private FileLoader _fileLoader = null;
 	private JpegLoader _jpegLoader = null;
 	private FileSaver _fileSaver = null;
-	private Stack<UndoOperation> _undoStack = null;
+	private UndoStack _undoStack = null;
 	private boolean _mangleTimestampsConfirmed = false;
 	private Viewport _viewport = null;
 	private ArrayList<File> _dataFiles = null;
@@ -79,7 +79,7 @@ public class App
 	public App(JFrame inFrame)
 	{
 		_frame = inFrame;
-		_undoStack = new Stack<UndoOperation>();
+		_undoStack = new UndoStack();
 		_track = new Track();
 		_trackInfo = new TrackInfo(_track);
 		FunctionLibrary.initialise(this);
@@ -911,6 +911,12 @@ public class App
 		UpdateMessageBroker.informSubscribers();
 	}
 
+	/**
+	 * @return the current data status, used for later comparison
+	 */
+	public DataStatus getCurrentDataStatus() {
+		return new DataStatus(_undoStack.size(), _undoStack.getNumTimesDeleted());
+	}
 
 	/**
 	 * Show a map url in an external browser