You can log to the terminal/console standard output using:
[ "foo" . ] with-global
The problem with your listener output issue is probably pref-dim is called
before the new window opens and draw-gadget is called after and the
output-stream (initially set to the listener) is rebound to something other
than the listener you expect it to be.
You could also save the listener output stream somewhere:
SYMBOL: my-output-stream
output-stream get my-output-stream set-global
Then use it to make sure output goes to the right place:
my-output-stream [ "foo" . ] with-output-stream
There are other ways maybe to make that cleaner but if you only need debug
output that should fix it for you.
> On Apr 24, 2016, at 9:40 AM, Alexander Ilin <ajs...@yandex.ru> wrote:
>
> Hello!
>
> I've got the following gadget implementation:
> USING: kernel ui.gadgets
> ui.render opengl prettyprint namespaces ;
> IN: iqlink.gadget
>
> TUPLE: iqlink-gadget < gadget ;
>
> : <iqlink-gadget> ( -- gadget )
> iqlink-gadget new ;
>
> M: iqlink-gadget pref-dim*
> drop { 900 600 } "pref-dim*" . ;
>
> M: iqlink-gadget draw-gadget*
> drop [ origin get { 5 5 } gl-fill-rect ] do-matrix "draw-gadget*" . gl-error
> ;
>
> I'm displaying it in a window like so:
> [ <iqlink-gadget> "IQLink" open-window ] with-ui
>
> In the Listener output I expect to see the line "draw-gadget*" every time
> the window is redrawn. However, I only see "pref-dim*" once, and the line
> "draw-gadget*" is never added to the Listener output. It appears as if the
> method draw-gadget* is never called.
>
> What do I do wrong?
>
>
> ---=====---
> Александр
>
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