Hi, On 01/03/2015 03:40 AM, Werner Almesberger wrote: > Key Mode > --- --------------------------------------------------- > 1 smooth and centered, the default > 2 list scrolls in the same direction in all zones (2) > 3 list changes scroll direction depending on zone > > Note that I didn't fully debug modes 2 and 3, so there are some jumps > when changing zones.
I didn't really understand this explanation of modes 2 and 3, but the image helped. Even ignoring the zone-switching bug, I agree that modes 2 and 3 are much weirder than mode 1. Mode 3 would probably just confuse me, since it acts as if I'm scrolling the wrong way, then jumps around to "fix" it. Mode 2 seems like the pointer skips past one item (it moves by two item heights) - but the list jumps at the same time so that it doesn't actually skip anything... Yet, they both have the list scroll smoothly while you're on a single item. Just not when moving from one item to the next. Frankly, I think it would be clearer (at least to me) if the cursor and/or list just jumped one item at a time without the smooth scrolling in between. A bit old-fashioned, perhaps, but still clearer IMO. Mode 1, on the other hand, doesn't really seem odd at all. There, the list moves consistently, and smoothly, without jumping around, and the cursor only jumps one line at a time, when the currently active item changes. (The video you posted clearly shows that the way it jumps is not a problem, and rather makes sense.) Having the list be empty at both ends doesn't really seem odd either, IMO, it just reinforces that the active item is always at the middle of the screen, which I think is good for consistency. > - let the cursor move freely and have another marker that jumps > from item to item (e.g., invert the entry). That would probably > clutter the display quickly. I had an idea for a marker that might work, without inverting the entry or otherwise causing long white lines, though I'm less sure about the clutter aspect. The marker would be a vertical line right next to the item, exactly one item high, and following the item like the cursor does now - with the cursor pointing at it, possibly touching it. This kind of solution would also have the advantage of showing how close you are to switching which item is active, which could help to avoid accidentally selecting the wrong item (by scrolling a little more just as you clicked). (Though I suppose your approach with delays and thresholds would also prevent that.) To be perfectly honest though, I'm not sure if something like this would really be better than your current mode 1. What you have very clearly shows that you are at the end of the list, without having to look at the cursor, and is in some ways more consistent than moving the cursor instead just because you're at the end of the list. On the other hand, this would make more use of the available space on the screen, by showing more items than the current mode does. So, which is better? I suspect it might come down to personal preference, actually... ---- Hm, I just had a tangentially-related idea... Is it possible to update the screen fast enough to get a level of gray due to persistence of vision? (Think PWM on a per-pixel level.) If so, that could be used to highlight things, such as the selected item. Wouldn't even require long white lines, just use a checkerboard pattern with the PWM to make the area gray. I suspect it's not feasible in practice, though, even if it's possible. (Among other reasons, it would probably take too much power...) Regards, Frode _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
