Hugh,
This is a book bug, sorry about that, it is a reference from the earlier
(version 1) GUI class library that seems to have slipped through. I've
added a bug tracker entry for it on source forge.
Version 1 GUI's are still supported (link gui, don't import gui) for legacy
applications, but we've migrated most things to version 2 by now, and
I need to go back through the book to make sure everything gets updated.
Clint
On Wed, Apr 30, 2008 at 7:58 AM, Hugh Sasse <[EMAIL PROTECTED]> wrote:
> On Wed, 30 Apr 2008, Robert Parlett wrote:
>
> > Sorry, I should have explained that util__Event means class Event in the
> util
> > package - the name is "mangled" into util__Event by the compiler, but
> within
>
> Oh, right, most other languages I've used have : instead of _ for that.
>
> > source code you can just refer to Event so long as you import util.
> >
> > Anyway, the pdf book on the unicon home page should be of help in
> explaining
> > the Event object - have a look at page 222 in the following :-
>
> I was looking at 417, which says:
>
> <quote>
> Event
> An instance of this class is generated by components and passed to the
> dialog_event
> method. It simply holds three elements, which can be accessed as follows:
> get_event() returns the Icon event associated with the event.
> </quote>
>
> So it should have a get_event method, then, shouldn't it?
> >
> > http://unicon.sourceforge.net/book/ub.pdf
> >
> Thank you
> Hugh
> >
> > On Wednesday 30 April 2008 15:14, Hugh Sasse wrote:
> > > On Wed, 30 Apr 2008, Robert Parlett wrote:
> > > > I think your problem is that the util__Event object doesn't have a
> method
> > > > called get_event(). It has member variables source, type and
> param,
> > > > with corresponding get methods. (The source is in
> uni/lib/event.icn)
> > >
> > > I can't see anything about util__Event in the Unicon book PDF. I
> > > was under the impression that handlers (for button clicks) got the
> > > event itself. Are there any good examples out there (of trapping
> > > the correct event on a button)? If it only gets a click event then
> > > presumably ev is only for seeing the number of associated data passed
> > > with the event? Otherwise ev would not be used.
> > >
> > > I haven't checked to see if google code knows about Unicon yet.
> > >
> > > Thank you,
> > > Hugh
> > >
> > > > Hope this helps.
> > > >
> > > > > 98
> > > > > 99 # Browse for image1
> > > > > 100 method on_image1_browse_btn(ev)
> > > > > 101 local result, eventname, container, code
> > > > > 102 eventname := ev.get_event()
> > > > > 103 container := ev.get_container()
> > > > > 104 code := ev.get_code()
> > > > > 105 # can I write stuff -- where will it go?
> > > > > 106 write("event " || eventname || " from " ||
> > > > > 107 container || " with code " || code ||
> > > > > 108 "\n")
> > > > >
> > > > > line numbers (added by vim : set number ) not actually in the
> source.
> > > > >
> > > > >
> > > > > Is there any way to get the variable name of the offending thing
> into
> > > > > the stack trace (by adding some debugging flags?) and is there an
> > > > > example available of how to use the events passed in to handler
> methods
> > > > > for buttons, anywhere?
> > > > >
> > > > > Thank you,
> > > > > Hugh
> > > > >
> > > > >
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