Moved source into separate src directory due to popular request

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

diff --git a/src/tim/prune/undo/UndoSewSegments.java b/src/tim/prune/undo/UndoSewSegments.java
new file mode 100644 (file)
index 0000000..fbcf853
--- /dev/null
+++ b/src/tim/prune/undo/UndoSewSegments.java
@@ -0,0 +1,44 @@
+package tim.prune.undo;\r
+\r
+import tim.prune.data.DataPoint;\r
+import tim.prune.data.Track;\r
+import tim.prune.data.TrackInfo;\r
+\r
+/**\r
+ * Operation to undo the sewing together of track segments\r
+ */\r
+public class UndoSewSegments extends UndoReorder\r
+{\r
+       /** All segment start flags need to be remembered as well */\r
+       private boolean[] _segmentStartFlags = null;\r
+\r
+       /**\r
+        * Constructor\r
+        * @param inTrack track contents to copy\r
+        */\r
+       public UndoSewSegments(Track inTrack)\r
+       {\r
+               super(inTrack, "undo.sewsegments");\r
+               // Also remember segment start flags, as they may have been changed by reversals\r
+               final int numPoints = inTrack.getNumPoints();\r
+               _segmentStartFlags = new boolean[numPoints];\r
+               for (int i=0; i<numPoints; i++) {\r
+                       _segmentStartFlags[i] = inTrack.getPoint(i).getSegmentStart();\r
+               }\r
+       }\r
+\r
+       /** Perform the undo */\r
+       public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
+       {\r
+               // Put all the points back in the right order\r
+               super.performUndo(inTrackInfo);\r
+               // And then restore the segment flags\r
+               for (int i=0; i<_segmentStartFlags.length; i++)\r
+               {\r
+                       DataPoint point = inTrackInfo.getTrack().getPoint(i);\r
+                       if (point != null && !point.isWaypoint()) {\r
+                               point.setSegmentStart(_segmentStartFlags[i]);\r
+                       }\r
+               }\r
+       }\r
+}\r