List scan accelleration new feature--superb!

[Mikerman]

As one who has hoped for the list scan accelleration feature for a long time, congratulations on and many thanks for this!

And not only was the feature added, but in Rolls Royce fashion:  with a user-configurable start time, and user-configurable speed options.

Now I can get thru my 9000+ file list in seconds rather than minutes, making the database/track option a user reality.

From first impressions, a very nice feature--many thanks!  

[Buschel]

I would also love to use this feature. But on iPOD it does not seem to work...

[DefineByte]

I think the code for iPods was removed in March as it didn't work properly. I haven't seen anything since then.

[Vortex]

Hi everyone,

I tried the new scroll acceleration feature on my Sansa but I downgraded again to a version before this patch because I had several problems:

1. Sometimes the scrolling is somehow "jumpy". It jumps a few entries back and forth while scrolling, even before the acceleration triggers. This also happened when I set the action delay to "Off".

2. The acceleration patch breaks the "Show ID3 Info" screen. In this screen, unlike other lists, the line selector spans across two lines. When you scroll down quickly from top to bottom, the line selector will somehow come off, and span across the wrong two lines. I guess this is somehow related to the "jumpy" scrolling problem.

3. I think the activation delay should be specified in rows (i.e. scrolling distance) rather than Milliseconds. It's very confusing/annoying when you only want to scroll a few lines down and suddenly the acceleration kicks in.

4. The acceleration should only trigger when I'm quickly scrolling through a list. Right now it also triggers when I turn the wheel slowly. This is kind of annoying when you are slowly scrolling through a long list, in search of a particular song, and suddenly the scrolling speed increases.

Overall I think that this is a nice feature addition, but it needs some refinement.

[JdGordon]

I think the code for iPods was removed in March as it didn't work properly. I haven't seen anything since then.

No, back then the repeat action wasnt being sent whihc meant that extra code was needed on the ipod for this to work, since then this was fixed though so it does work on it, althogh apparently no very well on the nano.

Vortex:
1) I think you'll find that the selection stays correct, it just moves in the screen a bit unexpectadly.
2) Ok, need to fix this
3) set it to a higher wait value,...
4) no way to do this with the current button code. if you are moving fast enough that the repeat actio is triggered then there is nothing we can do... to fix this set a higher start delay.

[DefineByte]

since then this was fixed though so it does work on it

Good to hear (not that I have any particularly long lists).

[Buschel]

jdgordon: Am I doing something wrong with the configuration? I cannot see/feel any difference in scrolling on my 5.5G... Is there something with the other scroll-settings which may interfere with the new scroll-acceleration?

[Llorean]

There aren't other scroll settings.

Try setting the timeout to very short,  and the jump distance to very long, move your finger quickly, and make absolutely sure it never lightens up or leaves the wheel.

[Flid]

Three cheers for Jonathan!!! Excellent implementation of accelerated list scrolling. Exactly what I've been looking for for ages (and hinting at several times   ) Much smoother than other patch attempts. Nice one.

Only one minor bug I've noticed. With smaller fonts, where the bottom/top offset is 3 lines when scrolling... at the end of a list, when the selection line is looking to move in to the last three lines of the list, the actual page view jumps to the start of the list and then back to the end of the list.

@ Llorean. There are LOTS of other "scroll" settings. Just not ones applicable to list scrolling (ie. bi-directional line scrolling, paged scrolling etc).

[Llorean]

That's what I meant though, there aren't other scroll settings that apply to this, sorry I wasn't quite clear.

[JdGordon]

1. Sometimes the scrolling is somehow "jumpy". It jumps a few entries back and forth while scrolling, even before the acceleration triggers. This also happened when I set the action delay to "Off".

2. The acceleration patch breaks the "Show ID3 Info" screen. In this screen, unlike other lists, the line selector spans across two lines. When you scroll down quickly from top to bottom, the line selector will somehow come off, and span across the wrong two lines. I guess this is somehow related to the "jumpy" scrolling problem.

fixed and fixed.. was there a FS report for either of these that needs to be closed?

[Lear]

Seems the acceleration is causing a minor problem for paginated scrolling (even with list acceleration off):

When moving to the last "page" of a list, the list would only move long enough to show the last entry, and not jump a full page forward (moving up to the top works like this, as expected). Now it will only re-position the last page to display a full page when receiving a repeat-down event; a "lone" down event will not cause this.

[JdGordon]

ah, hmm... thats a bit odd ;p

[JdGordon]

odd... but hopfully fixed?

[psycho_maniac]

This is a very wonderful feature if it would work. for me it seems to do the opposite of what its supposed to do and i just updated rockbox. maybe im jumping to conclusions. I have 64mb 80gig ipod