modify animation

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
add region length in the display

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
fix a bug when moving controls

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>