Re: [gtk-list] Re: Pixmaps in gtk

[Joel Dillon <jo dillon new oxford ac uk>]

On Sat, 4 Oct 1997 jchrr@HRZ.Uni-Bielefeld.DE wrote:

> Hi !
> 
> > I've been working on a high-level, C++ -based, windowing API similar
> > in goals to GTK. However, unlike GTK it's been written to use entirely
> > pixmaps, which potentially means it would be both much prettier than
> > GTK's relatively old-fashioned Motif-like interface and potentially more
> > configurable. Perhaps it would be a nice idea to write the GTK to
> > use pixmaps, or at least allow the option of using them? The prettier
> > the interface the more likely people are to use and develop for the GTK,
> > and I would prefer to help develop on an existing project rather than
> > write a toolkit from scratch.
> 
> One part of this is already solved: GTK allows to use a bitmap as a 
> "background" of a widget, a good example for this is gnome's raft, if you
> uncomment the stuff in "raftrc".
> 
> But I think you want to do more: For example a check-button: paint a 
> mechanical switch in a paint-program, maybe with an led showing the state
> (on/off), in the on and off position, but keep the background transparent.
> Now, if the widget has to be drawn, it paints one of the two pixmaps.

 Yep, this is exactly what I had in mind (although ideally with the
ability to paint pixmap'd borders as well). But presumably this means
the pixmap style would either have to be part of the core library,
or there'd have to be something in gtk telling it to link to an external
set of style functions. Anyone have any ideas how soon it'll be done?
 
> This can't currently be done with gtk, because the widget-drawing code is
> part of the widget code itself. But there are plans (at least in the TODO), to
> support GTKStyles: The widget code contains only the widget-logics (reacting
> in signals), and it calls a "GTKStyle.widgetname_draw" function to finally
> draw it. One Style could use this pixmap-method, and it could look quite cool.
> 
> Note to scwm and gtk authors: A common "style-module" format would be cool ! 
> What do you think about compiling the style into a shareable library, and
> use the ld-lib functions to link the correct style-module on runtime ?

  Makes sense.

> 			Jens Ch. Restemeier
> 
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