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[0:59] <projectmoon> so i'm trying to figure out how implement custom event properties
[1:00] <projectmoon> it kind of randomly works in one of my other classes, but the behavior is not being replicated in the class i am currently working on
[1:00] <projectmoon> is there some magic that must be done in order to trigger it?
[1:06] <agronholm_> how are you doing it?
[1:06] <projectmoon> well the class where it works has the standard addXListener
[1:06] <projectmoon> and said listener takes events that extend EventObject
[1:06] <projectmoon> so it attaches the event methods as properties to said class
[1:06] <projectmoon> same methodology elsewhere but it doesn't seem to like the magic
[1:07] <projectmoon> at the moment i'm trying to dig through the jython source to see how it detects event properties
[1:07] <agronholm_> are you doing it in Java or Python code
[1:07] <projectmoon> these are java classes that get used python side
[1:07] <agronholm_> event properties are not such a great idea anyway
[1:08] <agronholm_> jython-swingutils implements a better approach
[1:08] <agronholm_> http://www.bitbucket.org/agronholm/jython-swingutils/src/tip/swingutils/events.py
[1:10] <agronholm_> once you assign a function to an event property, you can't un-assign it
[1:10] <agronholm_> and you can't add more than one listener that way
[1:10] <projectmoon> i was aware of the second, but not the first
[1:10] <projectmoon> half of this is to figure out how to do it
[1:11] <projectmoon> i'm assuming the way that this jython-swingutils works is by passing event listening method names into the addEventListener method?
[1:11] <projectmoon> along with the target object and the listener type
[1:12] <agronholm_> event names actually, it figures out the add* and remove* method names automatically
[1:13] <agronholm_> I had a more magical version of addEventListener before, which even figured out the necessary event interface class automatically from the class hiearchy, but it was horribly slow
[1:15] <projectmoon> well, the good news is i'm an idiot
[1:15] <projectmoon> the event properties weren't working because i forgot to extend the EventListener interface
[1:16] <projectmoon> i will look into the link though
[1:17] <projectmoon> it is likely that event properties won't cut it later
[1:17] <projectmoon> particularly if you can't unassign them
[1:17] <projectmoon> not so much multiple listeners though
[1:17] <projectmoon> although i can see both being factors
[1:17] <projectmoon> thank you
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[1:20] <projectmoon> agronholm_: it looks like i am able to change and remove the functions on event properties
[1:22] <agronholm_> how?
[1:22] <projectmoon> just by assigning a new function to it
[1:22] <projectmoon> or setting it to None
[1:22] <agronholm_> does that really disable it?
[1:22] <agronholm_> are you sure?
[1:22] <projectmoon> what do you mean by disable?
[1:23] <projectmoon> stop the event?
[1:23] <agronholm_> make it not fire on event
[1:23] <projectmoon> setting it to None will throw an exception if it the function is called
[1:23] <projectmoon> so, sort of? :)
[1:23] <agronholm_> well, that's not a very good solution :P
[1:24] <projectmoon> other idea would be to have an empty function
[1:24] <projectmoon> or provide a hook to remove the listener that it creates in the background
[1:25] <projectmoon> although
[1:25] <projectmoon> i find it kind o funny because the add*Listener method doesn't actually do anything
[1:25] <projectmoon> so it's probably not as simple as removing all listeners java side
[1:25] <agronholm_> huh?
[1:26] <projectmoon> well my first guess would be that jython uses reflection to call the add*Listener behind the scenes
[1:26] <projectmoon> but apparently it doesn't do that
[1:26] <projectmoon> since the current implementation for my add method is blank
[1:26] <projectmoon> well, actually it would have to
[1:26] <projectmoon> just not for the functiona
[1:26] <projectmoon> s
[1:26] <agronholm_> add*Listener certainly does something
[1:26] <projectmoon> not my current implementation of it
[1:27] <projectmoon> :)
[1:27] <agronholm_> I'm not talking about your code, I wouldn't know what's in it
[1:27] <projectmoon> actually is what it probably does is create the listener and then pass it to the proper add*Listener
[1:27] <projectmoon> i'm not actually calling events at the moment
[1:27] <projectmoon> in an event-driven fashion
[1:27] <projectmoon> just directly
[1:28] <projectmoon> so what would happen in my code is the function pointers would be created but they would never get called since my add*Listener doesn't do anything yet
[1:29] <agronholm_> I'm not sure that the proxy generator cares if you override add*Listener
[1:29] <agronholm_> the whole event property thing is too much magic
[1:30] <projectmoon> heheh
[1:30] <projectmoon> well i'm not really overriding any add*Listener
[1:30] <projectmoon> there isn't anything to override
[1:30] <projectmoon> just adding that method to my code
[1:30] <agronholm_> so what exactly do you want now
[1:31] <projectmoon> hmm, oh my question has been answered for some time
[1:31] <projectmoon> at this point i'm just speculating on how the whole thing works
[1:31] <projectmoon> because i have an annoying need to know how everything works
[1:32] <projectmoon> :)
[1:43] <projectmoon> in other news, you can also apparently add more than one event handler to an event property by calling its append method
[1:43] <agronholm_> I see
[1:44] <agronholm_> this wasn't documented anywhere...
[1:44] <agronholm_> did you test that it works?
[1:44] <projectmoon> still only testing direct calls
[1:44] <agronholm_> bleh
[1:44] <projectmoon> but, don't see why it wouldn't work in actual real event handling
[1:44] <projectmoon> time to break out the swing
[1:47] <projectmoon> yup
[1:47] <projectmoon> works as expected
[1:47] <agronholm_> can you remove them?
[1:48] <projectmoon> there is a clear() method
[1:48] <projectmoon> doesn't look like there's a method to remove individual ones
[1:48] <agronholm_> what about del?
[1:49] <agronholm_> hm
[1:49] <agronholm_> no way to specify which one to delete...
[1:49] <projectmoon> or is there?
[1:49] <projectmoon> let's see
[1:49] <projectmoon> http://pastebin.com/PsPFZs8m
[1:49] <projectmoon> that's the simple swing test
[1:49] <projectmoon> modified code yoinked from some stack overflow page
[1:50] <agronholm_> .show() is deprecated
[1:50] <agronholm_> .visible = True is the proper method
[1:50] <projectmoon> like i said, yoinked from some stack overflow article
[1:50] <agronholm_> just sayin'
[1:50] <projectmoon> the event properties are actually CompoundCallable objects
[1:51] <projectmoon> you'd think that would be iterable but nope
[1:51] <projectmoon> so if you call the function it actually calls them all in successio
[1:51] <projectmoon> n
[1:51] <projectmoon> CompoundCallable does not support item deletion
[1:52] <agronholm_> damn, I really need to finish my thesis
[1:52] <agronholm_> gone =>
[1:53] <projectmoon> heh
[1:57] <projectmoon> http://jython.svn.sourceforge.net/viewvc/jython/trunk/jython/src/org/python/core/PyCompoundCallable.java?revision=5739&view=markup
[1:57] <projectmoon> doesn't look like it would be hard to add a few extra methods to it to support iteration and picking of individual callables
[1:57] <projectmoon> (code is way at the bottom of the changelgo)
[1:57] <projectmoon> changelog*
[2:42] <snappy> Ooh, jython users.
[2:44] <projectmoon> *wiggles fingers mysteriously*
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[22:01] <jbrendel> Hello! I'm trying to dynamically import some classes. I can either write eval("from foo import blah") or use __import__. Both works just fine when I'm doing this with Python modules. But when I try to do this with some Java classes then it does not work. Nothing gets imported.
[22:01] <jbrendel> Is there any way to dynamically import Java classes in my Jython program?
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[22:23] <agronholm_> uhm, you are dynamically trying to import java classes from java code?
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[22:38] <agronholm_> ah, doh
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