MacArthur, Ian (SELEX GALILEO, UK) wrote:
>> What is the method to have the text show over the image that
>> is set as a label?
>
> You mean writing the text on top of the image?
> I don't think we support that as a default option.
>
>> Can this be done or am i just misreading this?
>
> You need to make a subclass of Fl_Button and then fix up the rendering
> as you want it in the draw() method.
> It's pretty easy to do.
> Also, IIRC, there's working examples of doing this on Greg's site.
Yes, this example:
http://seriss.com/people/erco/fltk/#TextOverImage
There's two examples there; one deriving from Fl_Widget,
the other deriving from Fl_Button.
If you're working with a button, example #2 is what you want, eg:
http://seriss.com/people/erco/fltk/TextOverImageFl_Button
The trick is to override draw(), and tell the widget
to draw itself *first* (eg. call Fl_Button::draw() first),
followed by the image (eg. fl_draw_image()),
then draw the label text last (eg. with fl_draw()).
With the Fl_Button example, it's critical that the image draw
inside the button's border, so it shows the code needed to do
that correctly (eg. Fl::box_dx() and friends).
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