convert ReverseMethod to scoped enum

and drop unused enumerators
   REVERSEMETHOD_INVERT_SWEEP
   REVERSEMETHOD_SUBTRACT_POLYGON

Change-Id: I11b52d4b32e5f766dfa3bcd69b9c636f4106b7b4

1 files changed, 8 insertions, 18 deletions

diff --git a/slideshow/source/inc/transitioninfo.hxx b/slideshow/source/inc/transitioninfo.hxx
index 5268e7fc9a8d..a1b43541b330 100644
--- a/slideshow/source/inc/transitioninfo.hxx
+++ b/slideshow/source/inc/transitioninfo.hxx
@@ -75,36 +75,26 @@ struct TransitionInfo
         the target in the outer area (instead of in the inner
         area, as in normal mode).
     */
-    enum ReverseMethod
+    enum class ReverseMethod
     {
         /** Ignore direction attribute altogether
             (if it has no sensible meaning for this transition)
         */
-        REVERSEMETHOD_IGNORE,
+        Ignore,
 
-        /** Revert by changing the direction of the parameter sweep
-            (from 1->0 instead of 0->1)
+        /** Combination of ReverseMethod::InvertSweep and
+            ReverseMethod::SubtractPolygon.
         */
-        REVERSEMETHOD_INVERT_SWEEP,
-
-        /** Revert by subtracting the generated polygon from the
-            target bound rect
-        */
-        REVERSEMETHOD_SUBTRACT_POLYGON,
-
-        /** Combination of REVERSEMETHOD_INVERT_SWEEP and
-            REVERSEMETHOD_SUBTRACT_POLYGON.
-        */
-        REVERSEMETHOD_SUBTRACT_AND_INVERT,
+        SubtractAndInvert,
 
         /// Reverse by rotating polygon 180 degrees
-        REVERSEMETHOD_ROTATE_180,
+        Rotate180,
 
         /// Reverse by flipping polygon at the y (!) axis
-        REVERSEMETHOD_FLIP_X,
+        FlipX,
 
         /// Reverse by flipping polygon at the x (!) axis
-        REVERSEMETHOD_FLIP_Y
+        FlipY
     };
 
     /** Indicating the method to use when transition