Thanks Robert,
I was thinking I would just make the scroll rate for the arrows
auto incrementing, like it is in the address book. The scrolling
starts out slow and increases up to a maximum rate, as long as the
pen remains on the arrow. This would eliminate the need for a form
or preferences form entry to set the scroll rate.
Since I am new at this, I'm having some trouble finding my way around
the plucker CVS. I couldn't find the autoscroll branch. and I'm not
sure what the process is for making modifications and submitting changes.
Would someone care to enlighten me?
Thanks
Scott Herman
At 07:13 PM 9/11/01 +0100, Robert O'Connor wrote:
>Hi Scott,
>
>The scrollbar arrows at the ends of the arrows are using the usual Palm
>scrollbar behaviour (short 1 line code) of moving up or down a single
>standard unit of scrolling, which in this case unfortunately is pixels. In
>memopad, it scrolls a line since the units there are lines.
>
>If you want to look into adding an interface for being able to set the
>scroll arrows, by all means. It is probably best to make it selectable if
>you do, so people can set it according to their wishes.
>
>In the auto_scroll branch of the Plucker CVS, there is a form ready to add a
>gateway to this (form is called autoscroll & scroll options--it currently
>just has the autoscroll, setting the scrollbar arrows wasn't put in yet).
>The form was formatted to allow extra room for controls to set the
>scrollbars. Can just make that form taller, then use the same type of line
>as
>
>"Autoscroll Jump:" [selection box] \/Pixes/Pages
>for a
>"ScrollArrow Jump:" [section box] \/Pixels/Pages
>
>The code for handling the spinners and popup boxes (which need a little
>touching-up to be more readable and extensible) can then just be reused. New
>preferences (scrollarrow jump and scrollarrowpixel/page) have to be added to
>the end of the list of preferences, to handle upgrades from older Plucker
>versions.
>
>There will likely be a Handera version at some point, so have to be able to
>deal with different screen resolutions. Handling a PenDown in the area of
>the scrollarrow (which I didn't feel like doing) was the only initial way I
>could think of doing it, but I didn't look into it any farther. Accessing
>and or/modifying attributes of the scrollbar directly are also not a good
>option since those would break in Palm OS 5.0 when it comes out.
>
>Best wishes,
>Robert
>
>
>
> > I'm new to plucker. In general it's pretty quick but
> > the one problem that stands out for me is that scrolling
> > using the tappable arrows at either end of the scrollbar
> > is very very slow. As a palm developer I'd be more than
> > happy to look into that, but I don't want to collide with
> > any other ongoing development/modification efforts.
> >
> > Is this problem currently on someone's turf? Is it up for
> > grabs? How do I go about co-development with this stuff?
> >
> >
> > Scott Herman
> > Yale New Haven Hospital
> > Department of Lab Medicine
> > 20 York Street
> > New Haven, Ct. 06504
> > (203) 688-2449
> > [EMAIL PROTECTED]
> >
