Global transport shortcuts

[unfa]

This is based on concept presented here: #1140

The idea is to allow user to control the Song transport without using mouse in the Song window.
I suggest the following hotkeys:

• Spacebar - play/pause toggle²
• ← - go back one measure²
• → - go forward one measure²
• ↑ - go back four measures
• ↓ - go forward four measures
• Page Up - go back 16 measures
• Page Down - go forward 16 measures
• Home - go to the Song's start (before first measure)²
• End - go to Song's end (after last measure)

² these keys are implemented right now, but work only if Song window is in focus.

[Sti2nd]

Shortcut keys needs to be thoroughly thought through. Just saying for someone who wants to sketch down a new logical map of the shortcut keys, as it has been needed for some time. This makes me think that it perhaps is best to wait until the key combinations makes sense again, before implementing new?

Up-arrow ↑ and down-arrow ↓ already moves the scroll bar up and down when it is selected (when you have clicked it or scrolled). I would much rather that the up and down arrows could scroll up and down in the Song editor rather than move the playhead. Actually, where there is scroll bars, I would rather that the right- and left-arrows also scrolls. There are scrollbars in (almost) every window in LMMS, so if they were to have a logical keystroke it would be scrolling the selected window.

I am attempted to say the same about the PgUp and PgDn keys, as they usual scroll a page, and LMMS does claim to be scroll able like an internet page...

Ctrl + arrows and Page-keys, instead? This would mean that the keystroke in Song Editor with the arrows should change. That is why someone must make an overview on all of these.

[Umcaruje]

Or maybe use ctrl+ ← → for going 4 measures. That would work better imo.

[unfa]

The latter seems fine to me, but yeah - we need to make a comprehensive hotkey list.

[Sti2nd]

If you have some in addition to these, please comment http://lmms.sourceforge.net/wiki/index.php/1.0:Key_Mappings

[musikBear]

just dont forget #728 shortcut to pause ( -although playhead-behavior-settings somewhat cater for this)
I also remember that all shortcuts has been up in discussion, but a search diddent bring it up
And -is it nessesary with several key combos for fixed 'jump-distances'? Wouldent 2 (fwd/bwd) be enough
User could tab the key several times -so with an inputfield for set distance (default one beat), a very flexiable setup could be achived?

[tresf]

Consolidated into #3740.