[plt-scheme] setting background color/image for a text field

The editor-snip% class includes a `use-style-background' method.
Calling it with #t causes the snip to pay attention to the
background-color information associated in the snip's style (which
would have been the right idea in the first place, but the default to
ignore it is there for backward compatibility).

The style can be configured for transparent backing or a particular
color. I think that transparent is the default.

Matthew

At Thu, 8 Nov 2007 16:58:16 -0600, "Robby Findler" wrote:
> I'm not sure if transparency is possible, but you can use a solid
> color or an image but overriding the on-paint method of the text%
> object and drawing it there.
> 
> hth,
> Robby
> 
> On 11/8/07, Leslie Gerhat <thoroughbred_phoenix at yahoo.com> wrote:
> >
> >
> >
> >
> > We are working with a set of text% objects in Mr.Ed, specifically two large
> > text boxes. Right now, we are displaying a string of text in these objects.
> > We would like to be able to change the background on which this text is
> > written. We know that the entire canvas color may be changed using (send
> > an-editor-canvas% set-canvas-background color%-object). However, the text
> > fields remain white using this method. We would like to change the
> > background of the text fields to an image, or possibly make the text fields
> > transparent except for the text, so whatever is in the canvas background
> > shows through the text fields. Additionally, we would also like to end-user
> > to be able to choose between 3 different images for this background, which
> > adds an additional complexity to the problem.
> >
> >
> >
> >
> > Does anyone know of a way to do this? Or has anyone created a similar
> > application and is able to give us some direction? We would greatly
> > appreciate this. Thank you.
> >
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