[SUG][PL] Support for CTRL+key and CTRL+wheel shortcuts

[Guigui]

I love my mousewheel ! And while playing I am undecided wether to use it for the zoom in/out (default iirc), or for the frame stepping forward/backward. So why not use it for both ?

Ideally I think it'd be nice to be able to achieve the following settings :

* mousewheel up = zoom in
* mousewheel down = zoom out (this is already the case by default iirc)

* CTRL + mousewheel up = chosen number of frames step forward
* CTRL + mousewheel down = chosen number of frames step backward

[WillLem]

* CTRL + mousewheel up = chosen number of frames step forward
* CTRL + mousewheel down = chosen number of frames step backward

Hm. I agree, but this would mean treating the modifier keys only as modifiers. They could no longer be used on their own as single-fire key events.

I'm pretty sure a hack exists where you can use a modifier with itself (so, Ctrl+Ctrl) to get essentially the same behaviour as a single keypress, but I wonder if the key has to be held for a certain amount of time for that to work.

So, would anybody mind this being changed? Allow the modifiers to be used as modifiers, but no longer as hotkeys by themselves?

[Simon]

You don't have to remove single keybindings for this. The program should be able to fire event A on LCtrl-down, and later fire event B on ((LCtrl-held or RCtrl-held) + another-key-down).

LShift-down and LCtrl-down are handy in a left-hand layout.

Does the trouble arise from the design of the keybinding dialog?

-- Simon