lib/sdl: fix right and middle mouse button id

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/sdl.nit b/lib/sdl.nit
index 168f123..16695e2 100644 (file)
--- a/lib/sdl.nit
+++ b/lib/sdl.nit
@@ -310,10 +310,10 @@ class SDLMouseButtonEvent
        fun is_left_button: Bool do return button == 1
 
        # Is this event raised by the right button?
-       fun is_right_button: Bool do return button == 2
+       fun is_right_button: Bool do return button == 3
 
        # Is this event raised by the middle button?
-       fun is_middle_button: Bool do return button == 3
+       fun is_middle_button: Bool do return button == 2
 
        # Is this event raised by the wheel going down?
        fun is_down_wheel: Bool do return button == 4