Keyboard shortcut/toggle to play animation

[D Gowers]

(posting on Trac now that I've figured out how to login correctly)

It's pretty simple: There's no way to assign a keyboard shortcut to play the animation, forwards or backwards. You can only rightclick+hold on the relevant button. Or hold the 'next frame'/'prev frame' key, but this has severe problems in terms of totally ignoring timing information.

A keyboard shortcut would be useful, already, and it would become more so if animated editing is implemented (eg. tracing the path of an object using continuous or discontinuous hand-drawing as the animation plays)

IMO this keyboard shortcut should function as a toggle:

• is animation playing?
  • if it is, but not in this direction, switch direction.
  • if it isn't, start it playing.
  • if it is, and in this direction, stop animating.

More troublesomely, it should also (at least for the time being) block image modifying actions, and any 'transactional' actions (eg. interactive brush stretching).

[Adrien Destugues]

Internal note: Maybe playing the animation could be implemented as an "operation", that would lock everything as needed. However, it may become a bad idea when we try to allow editing while the animation plays.

[PulkoMandy]

Move open tickets to 2.7 milestone