[sugar] scrolling the journal list view (was Re: alt-tabbing to the Journal)

[Walter Bender]

On Sat, Oct 11, 2008 at 6:34 AM, Tomeu Vizoso <tomeu at tomeuvizoso.net> wrote:
> On Wed, Oct 8, 2008 at 5:27 PM, Eben Eliason <eben.eliason at gmail.com> wrote:
>> On Wed, Oct 8, 2008 at 3:26 AM, Gary C Martin <gary at garycmartin.com> wrote:
>>>
>>> - Realtime scrolling so you can just grab, drag, and look as it goes past.
>>
>> Indeed.  I have never been satisfied with the row-by-row scrolling,
>> but we couldn't do better in terms of performance before.  In
>> redesigning the Journal, it was very important to us (to me, at the
>> very least) that smooth pixel-scrolling was part of the plan. Tomeu,
>> do you think we can make a transition like this for 9.1?  I think it
>> would be another big boost to using the Journal.
>
> Sure I think we should do something for 9.1, but right now the
> resourcing part is a bit complex. Maybe Scott can comment on this?

Is this the right place to expend effort? From my experience, better
paging control would be more useful than fine-tuning the scrolling.

>> The main problem here is potential length of the scrolling page.  Its
>> unbounded, except by space constraints, right now.  There are two
>> viable options here that we've talked about.  First, we could
>> introduce the notion of paging, so that after scrolling to the bottom
>> of a page in the Journal, you have (older) and (newer) buttons to get
>> to other results.
>>
>> Second, and my preference, we could introduce temporal section
>> headers.  After scrolling far enough back in time, there might be
>> sections for each month, and further back, for each year, etc., with
>> each section being represented by a header only, and a disclosure
>> button.  Clicking on a section would open it inline, closing the
>> currently open section, thus keeping everything in the Journal
>> temporally ordered on a single "infinite" page, but allowing one to
>> dive into it in any range of time.
>
> Yes, I like this idea and I think it's pretty much doable.

Eben, weren't there a bunch of sketches regarding smart exponential
timescales we had developed early on? Maybe dust those off? Some where
quite good.

> Regards,
>
> Tomeu
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-walter

-- 
Walter Bender
Sugar Labs
http://www.sugarlabs.org