[plt-scheme] scrollable pane

From: Stephen De Gabrielle (stephen.degabrielle at acm.org)
Date: Fri May 15 11:28:37 EDT 2009

Hi, from following the dev list I understand there is a move try migrate
parts of the GUI from C to Scheme.  I don't know the status, but it might be
worth checking out. (I think Robby F was working on it?)


On Thu, May 14, 2009 at 3:56 PM, Carl Eastlund <carl.eastlund at gmail.com>wrote:

> On Wed, May 13, 2009 at 6:18 PM, Jon Rafkind <rafkind at cs.utah.edu> wrote:
> > How does one make a scrollable pane/window with the mred toolbox?
> Currently
> > I have a vertical-pane% and I add enough elements to it to go over the
> > 10,000 pixel limit. If I use list-box% instead and convert my elements to
> > strings then its fine, so I figure a scrollable vertical-pane% won't
> throw
> > an error with too many objects.
> >
> > It looks like I want something like [style '(vscroll)] but only canvas
> > supports that.
> At the moment I believe there is no way -- only canvases can have
> scrollbars.  I have in the past tried ways to "fake it" by overlaying
> a pane and a canvas and tying their movement together manually, but I
> never worked it out with any great success.  If someone can work it
> out, it would be a great planet package.
> --
> Carl Eastlund
> _________________________________________________
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Stephen De Gabrielle
stephen.degabrielle at acm.org
Telephone +44 (0)20 85670911
Mobile        +44 (0)79 85189045
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