#18 re-writing of 'movie'

[n_d]

This is a list of requests for the rewriting of the 'movie' object.

We have an interface with:
- a choice menu with the movie names.
- a play on/off button.
- a loop on/off button.
- a choice menu with the direction of playing (> , < , ><).
- an index slider indicating the actual frame.
- the actual frame number.
- the speed of playing.
- a p button for preview on/off.
- an e button for edition of the patch.
- a l button to load new movies.

We should add a 'pause button'.

The way we want the movie player to behave:

1) What triggers the playing?
- the 'play' button when (play = 0).
- the 'pause' button when (play = 1 && pause = 1).

No other action should trigger the playing.

2) What stops the playing?
- the 'play' button when (play = 1). (This should also do (pause = 0)).
- the 'pause' button when (play = 1 && pause = 0).
- the choice of a new movie.

No other action should stop the playing.

3) What changes the frame position?
- the 'play' button when (play = 1). -> go back to frame = 0.
- could we also change the frame position with the slider?

4) Which commands need to have an immediat effect without
triggering or stopping the playing (options of playback)?
- direction choice.
- loop mode on/off.
- speed of playing.