Gary Scavone <[EMAIL PROTECTED]> writes:
> I've looked through some of the documentation but I haven't been able
> to figure out whether it is possible to have gtk windows with
> background color gradients. For example, I wrote a gtk program for
> psychoacoustic tests that lets the user move items (buttons) around in
> a gtk_layout widget. We'd now like to define regions within the
> gtk_layout widget by having different background colors. Is that
> currently possible?
>
Just draw rectangles in the layout. See the "scribble" example in the
tutorial; that uses a drawing area. Layout is the same, except you
draw to layout->bin_window rather than widget->window, and scrolling
will set layout->xoffset/layout->yoffset, and you want to offset your
drawing by that amount.
(layout->xoffset, layout->yoffset are IIRC the position of the
bin_window in layout coordinates, where layout coordinates are what
you position child widgets in; so this defines how to offset the
layout coordinates when you call gdk_draw_* on the bin window.)
Havoc
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