jessyink-team team mailing list archive

[Marc Eberhard <eberhardma@xxxxxxxxxxxxxx>]

Hi Hannes!

2009/6/15 Hannes Hochreiner <hannes@xxxxxxxxxxxxxx>

>
>  Also, there a funny things happening with the progress bar on new slides.
>> Anyways, nothing too serious.
>>
>> What exactly is the problem? I didn't notice anything. Adding a slide is
>> obviously increasing the total number of slides by one and thus the length
>> of the progress bar will shrink from (screen width / number of slides) to
>> (screen width / (number of slides + 1)). The location of the progress bar
>> will also update to reflect the position of the new slide within the set. As
>> far as I can tell, it is working this way at least on my machine.
>>
>>  Upps, I think that was my fault. I just didn't get the idea. I started
> with a presentation with only one slide and got a small rectangle in the
> right hand corner as the progress bar. Then I added a second slide and
> suddenly it was in the left corner on the second slide. With the addition of
> a third slide it filled the whole width of the screen when I changed to the
> second slide. But thinking about it again (and adding a fourth slide, it
> makes perfect sense. The small rectangles indicate the first and last slides
> (which you mentioned to me at some point were excluded from the
> calculation). The "real" progress bar only come into play starting with the
> third slide. Then of course it fills the whole screen, as it is the only
> slide that "counts". With the addition of a fourth slide, I see a bar
> filling the right half of the screen for the second slide and a bar filling
> the left side for the third slide. Exactly as I would expect. So the
> progress bar works fine.
>

Maybe I should say something about the logic behind it... The first slide is
usually the title of the presentation or lecture and the last slide is
something like acknowledgement / questions / thanks for your attention. At
least that is the structure in my presentations and lectures. These two do
not really take any time. The title is only shown until the start of the
presentation and the last slide is shown at the end. Based on these
assumptions, the first and the last slide take no time during the
presentation and are thus represented by a point at the left or right. All
other slides between them are the actual content and these have a length
proportional to 1/N of the screen width, where N is the number of slides
excluding the first and the last. Maybe these assumptions are not true for
every presentation and should rather be customisable in some way? It works
fine for me, but your mileage may vary. Maybe we should just leave it that
way for now and wait for feedback from others. It shouldn't be hard to add
some flags to include the first or last slide as part of the actual
presentation for the progress bar calculation.

All the best,
Marc
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web:   http://www.aston.ac.uk/~eberhama/