Re: Pixmaps in gtk

["Michael K. Johnson" <johnsonm redhat com>]

jchrr@HRZ.Uni-Bielefeld.DE writes:
>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.
>
>This can't currently be done with gtk...

I beg to differ.  Buttons can hold any widget, including GtkPixmaps.
While handling the button-press event, swap in a different GtkPixmap.
You can make the user_data be a pointer to an array of GtkPixmaps,
and drop the correct one in at each button press.

It wouldn't be hard, I think, to subclass the gtk button to get a
multi-pixmap button that would do this itself.

Now, completed GtkStyles might make it a little bit easier to get
the effect you mention, but they aren't required.

michaelkjohnson

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