Re: [Fxruby-users] Newbie question about making own drawables

[Lyle J. <jl...@cf...>]

Fredrik Jagenheim wrote:

> I want to make something that's pretty simple. I want to have a couple
> of objects drawn on a canvas. These objects should be event-aware, so
> I get notified if they're clicked, dragged or otherwise manipulated.

Good, I think you will get a lot of people interested in the final 
product (including me ;)

> But I can't even figure out which FX object to inherit from. Neither
> 'FXDrawable' or 'FXImage' implements the 'connect' method.

Right, the only objects that implement connect() are those that have a 
message target, namely, subclasses of FXWindow and FXDataTarget. I 
suspect that in your case you'll want to start out with the FXCanvas 
object (which is showcased in the scribble.rb example program) and work 
from that.

> And since I can't even get to know when SEL_PAINT is requested, I
> don't know how I can get to know if a key has been pressed from
> SEL_KEYPRESSED.

If the question is "when are SEL_PAINT messages sent", it's whenever 
part (or all) of a window is exposed and needs to be repainted.

> I guess my lack of knowledge of how to program GUI is the major
> culprit here, but could someone please point me to some documents
> which could help me out? The stuff I find on FXRuby seems to assume
> that I already know Fox and the document on Fox assumes that I'm using
> C++, although I'd suppose it's pretty easy to translate into Ruby?

The three primary sources for FOX documentation are the two sites you 
mentioned (the FOX home page at http://www.fox-toolkit.org and the 
FXRuby home page at http://www.fxruby.org) as well as the FOX Community 
Wiki site, found here:

	http://fifthplanet.net

Hope this helps,

Lyle