Re: [Jython-users] Implementing HyperlinkListeners

[Jeff E. <je...@ad...>]

It seems the problem is with JEditorPane and the particular html
used in the jython docs.  If I feed the JEditorPane some more generic
html, then it generates hyperlink events.  I didn't investigate
what about the jython doc page html the JEditorPane doesn't like.



Andreas Schlapbach wrote:

> Hi List
> 
> I am looking at scripting languages based on the JVM and I must say I am 
> impressed of Jython. The feature that really interests me is the dynamic 
> creation of (JAVA) classes. Implementing interfaces is one application for 
> this technique.
> 
> So to get to know a language,  I allways try to implement this mini 
> help-browser (see attachment). In order to be able to browse, you have to 
> implement the HyperlinkListener. I have stared at this now for hours, and I 
> am allmost convinced it should work. However it does not. 
> 
> May be I am just blind, or I miss something. Could somebody take a look this.
> 
> Thanks.
> 
> Andreas
> 
> P.S.: If you remove the <!-- --> comments in the Jython Docs, this could be 
> the start of a help browser for Jython (JEditorPane  seems to allmost 
> supports HTML 3.2)
> 
> 
> ------------------------------------------------------------------------
> 
> from java import awt
> from pawt import swing
> 
> class MyHyperlinkListener(swing.event.HyperlinkListener):
> 	def __init__(self):
> 		print "MyHyperlinkListener CStr"
> 
> 	def hyperlinkUpdate(self,event):
> 	        print "Spam and eggs!"
> 
> 
> def helpBrowser(url):
> 	frame = swing.JFrame("Help Browser")
> 
> 	panel = swing.JPanel()
> 
> 	layout = awt.BorderLayout()
> 	panel.setLayout(layout)
> 
> 	urlField = swing.JTextField(30)
> 	urlField.setText(url)
> 
> 	toolBar = swing.JToolBar()
> 	toolBar.add(urlField)
> 	
> 	jhtml = swing.JEditorPane()
> 	jhtml.setPage(url)
> 	jhtml.setEditable(1)
> 	jhtml.addHyperlinkListener(MyHyperlinkListener())
> 
> 	jhtmlScrollPane = swing.JScrollPane(jhtml)
> 	
> 	statusBar = swing.JTextField()
> 	statusBar.setEditable(1)
> 	
> 	panel.add(toolBar, "North")
> 	panel.add(jhtmlScrollPane, "Center")
> 	panel.add(statusBar, "South")
> 
> 	frame.getContentPane().add(panel)
> 	frame.pack()
> 	frame.setSize(500,400)
> 	frame.show()
> 
> #adjust
> helpBrowser("file:/home/schlpbch/jython/Doc/index.html")
> 
> helpBrowser.py
> 
> Content-Type:
> 
> text/x-java
> Content-Encoding:
> 
> base64
> 
>