Derek Fountain wrote:
> Can someone either point me at, or show me the guts of, an example of using
> an emitter?
>
Sure, several of our examples use signals.
Tetrix is one example that declares its own signals:
http://doc.trolltech.com/qtjambi-4.4.0_01/doc/html/com/trolltech/qt/qtjambi-tetrix.html
> Specifically I'd like to emit a signal called "colorChanged" which carries a
> String containing the name of the colour something has changed to. My best
> effort to date is:
>
> QSignalEmitter.Signal1<String> e = new QSignalEmitter.Signal1<String>();
> e.emit("blue");
>
> which at least compiled. :) But a) it doesn't carry the name of a signal
> (where do I specify the "colorChanged" name?) and b) it caused a runtime
> exception.
>
The name of the signal is the name of the object. In this case, you have
named your signal 'e'. If you want to make a signal called colorChanged,
do the following:
Signal1<String> colorChanged = new Signal1<String>();
Signals must be declared as members of your class. I'm guessing this is
the reason for your run time exception (was the message of the run time
exception "Signals must be declared as members of QSignalEmitter
subclasses", if so then this is your problem.)
The documentation for using signals and slots is available at the
following address:
http://doc.trolltech.com/qtjambi-4.4.0_01/doc/html/com/trolltech/qt/qtjambi-signalsandslots.html
-- Eskil
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