Re: [Jython-users] Jython on Linux not dealing with swing Event class

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Im on Solaris, but I don't see any reason why the
platform is going to cause this problem.

Can you see if you can get the source via
event.getSource()
instead of
event.source

leouser

--- David Marshall <mar...@gm...> wrote:

>  leouser:
> 
> You didn't mention what Linux platform you are
> using.
> I can get this working on Windows but not on Linux
> Red Hat 3.4 with
> Java 1.5/Jython
> 2.1 I tried your variation and get the same error:
> AttributeError 'string'
> object has no attribute 'source' I should mention
> that the swing GUI I've
> built (JFrame,JTextFields, JLabels, JButtons etc)
> works perfectly until I
> add the line of code that tries to get an
> event.source in my action handler
> 
> b = javax.swing.JButton("hi")
> b.actionPerformed=self.handleAction
> 
> def handleAction (self, event):
>    print event # works fine. Prints out the
> java.awt.event.ActionEvent
>   # print event.source # causes the Attribute error
> if I uncomment this line
> 
> 
> When I run the above I get a printout like >>>
>
java.awt.event.ActionEvent[ACTION_PERFORMED,cmd=A,when=1166630615069,modifiers=Button1]
> on
>
javax.swing.JButton[,181,5,43x25,alignmentX=0.0,alignmentY=0.5,
>
border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@a9fa9c,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=14,bottom=2,right=14<border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@a9fa9c,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource%5Btop=2,left=14,bottom=2,right=14>],paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=true,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=A,defaultCapable=true]
> 
> 
> So the event object getting passed to the method
> looks right. I can't
> understand why jython gripes about handleAction at
> the time I try to
> instantiate my gui object. Clearly its got the java
> libraries it needs since
> its passing the ActionEvent. Why does it think event
> is a string?
> 
> I tried adding import java.awt.event.ActionEvent but
> that didn't help
> 
> Does this look like I've got some kind of subtle
> configuration problem or is
> Jython just buggy depending on the platform? I
> haven't used jython for more
> than 1 day but these mixed results are making me
> think its not a solid
> cross-platform language.
> 
> --- Message: 2 Date: Tue, 19 Dec 2006 11:40:47 -0800
> (PST) From: Leo User
> <leo...@ya...> <leo...@ya...>
> Subject: Re: [Jython-users]
> Jython on Linux not dealing with swing Event class
> To:
> jyt...@li... Message-ID:
>
<200...@we...><200...@we...>Content-Type:
> text/plain; charset=iso-8859-1 This code works for
> me:
> 
> >>> import javax.swing as sw
> >>> jb = sw.JButton("CATSSSS")
> >>> def zoo(act):
> 
> 
> ...    print act
> ...    print act.source
> ...    print act.source.text
> ...
> 
> >>> jb.actionPerformed = zoo
> >>> jb.doClick()
> 
> 
>
java.awt.event.ActionEvent[ACTION_PERFORMED,cmd=CATSSSS,when=1166557263790,modifiers=]
> 
> on
>
javax.swing.JButton[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.5,
>
border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@1a5fc52,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=14,bottom=2,right=14<border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@1a5fc52,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource%5Btop=2,left=14,bottom=2,right=14>],paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=true,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=CATSSSS,defaultCapable=true]
> 
>
javax.swing.JButton[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.5,
>
border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@1a5fc52,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=14,bottom=2,right=14<border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@1a5fc52,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource%5Btop=2,left=14,bottom=2,right=14>],paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=true,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=CATSSSS,defaultCapable=true]
> 
> CATSSSS
> 
> how about for you?
> leouser
> 
> 
> --- David Marshall <mar...@gm...>
> <mar...@gm...> wrote:
> 
> 
> > I'm having some problems with Jython and Swing on
> a
> > Linux (CentOS = RedHat
> > 3.2) box
> > > If I have some Jython code like:
> > > class MyGui(javax.swing.JFrame):
> > >  def buildGUI (self):
> >      b =
> >
> javax.swing.JButton("Hi",actionPerformed=self.sayHi)
> >      ... other code to add button to panel etc
> > > def sayHi (self, event):
> >     print event.source.text
> > > When I try to create a instance of MyGui
> > g = MyGui()
> > > I get a stack trace with:
> > > Attribute Error: 'string' has no attribute
> 'source'
> > > It doesn't like that print event.source.text
> > statement.
> > > The same code works correctly on Windows Jython.
> > > This code is very similar to a calculator GUI
> that
> > is in the O'Reilly
> > "Essential Python" book so its pretty standard
> > stuff.  Makes me worry that
> > Linux Jython isn't ready for prime time.
> > > Any ideas/help?
> > > > I've got the latest JDKs and Jythons installed
> > > thanks
> 
> 
> 
> 
> 
> -- 
> David Marshall
> http://www.cs.umass.edu/~marshall
> >
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