X-Git-Url: http://gitweb.fperrin.net/?a=blobdiff_plain;ds=sidebyside;f=tim%2Fprune%2FDataStatus.java;fp=tim%2Fprune%2FDataStatus.java;h=cacb2880c8125e96f307df7cfa1eae359714506e;hb=88f2c3647ed9e055090484f01a959d4581f85e7d;hp=0000000000000000000000000000000000000000;hpb=326f489e36aa7f235bc19409a57bf4955cd50f24;p=GpsPrune.git

diff --git a/tim/prune/DataStatus.java b/tim/prune/DataStatus.java
new file mode 100644
index 0000000..cacb288
--- /dev/null
+++ b/tim/prune/DataStatus.java
@@ -0,0 +1,34 @@
+package tim.prune;
+
+/**
+ * Class to remember the current status of the data,
+ * and make it possible to see whether the data has
+ * changed in any way since the DataStatus was requested
+ */
+public class DataStatus
+{
+	private int _undoSize = 0;
+	private int _deleteCount = 0;
+
+	/**
+	 * Constructor
+	 * @param inUndoSize current size of undo stack
+	 * @param inDeleteCount number of times undo stack has been deleted
+	 */
+	public DataStatus(int inUndoSize, int inDeleteCount)
+	{
+		_undoSize = inUndoSize;
+		_deleteCount = inDeleteCount;
+	}
+
+	/**
+	 * Has the data changed compared to the previous status?
+	 * @param inPreviousStatus previous status obtained from App
+	 * @return true if the status is now different
+	 */
+	public boolean hasDataChanged(DataStatus inPreviousStatus)
+	{
+		return _undoSize != inPreviousStatus._undoSize
+			|| _deleteCount != inPreviousStatus._deleteCount;
+	}
+}