Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / undo / UndoAddTimeOffset.java

diff --git a/src/tim/prune/undo/UndoAddTimeOffset.java b/src/tim/prune/undo/UndoAddTimeOffset.java
new file mode 100644 (file)
index 0000000..0a50699
--- /dev/null
+++ b/src/tim/prune/undo/UndoAddTimeOffset.java
@@ -0,0 +1,51 @@
+package tim.prune.undo;
+
+import tim.prune.I18nManager;
+import tim.prune.UpdateMessageBroker;
+import tim.prune.data.TrackInfo;
+
+/**
+ * Undo addition/subtraction of a time offset
+ */
+public class UndoAddTimeOffset implements UndoOperation
+{
+       /** Start and end indices of section */
+       private int _startIndex, _endIndex;
+       /** time offset in seconds */
+       private long _timeOffset;
+
+
+       /**
+        * Constructor
+        * @param inStart start index of section
+        * @param inEnd end index of section
+        * @param inOffset time offset in seconds
+        */
+       public UndoAddTimeOffset(int inStart, int inEnd, long inOffset)
+       {
+               _startIndex = inStart;
+               _endIndex = inEnd;
+               _timeOffset = inOffset;
+       }
+
+
+       /**
+        * @return description of operation including number of points adjusted
+        */
+       public String getDescription()
+       {
+               return I18nManager.getText("undo.addtimeoffset") + " (" + (_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
+       {
+               // Perform the inverse operation
+               inTrackInfo.getTrack().addTimeOffsetSeconds(_startIndex, _endIndex, -_timeOffset, true);
+               UpdateMessageBroker.informSubscribers();
+       }
+}