!!!Jython JFileChooser 1
[Jython Swing][Swing][Jython][Python]

!!方針
以下を参考に、Jythonでファイル選択を実装してみる
*http://java.sun.com/docs/books/tutorial/uiswing/components/filechooser.html

!!ソースコード
::実行例
{{ref_image js_jfilechooser01.jpg}}
.
{{ref_image js_jfilechooser02.jpg}}
::ソースコード
 # -*- coding: utf-8 -*-
 
 from java.lang import *
 from java.io   import *
 from java.awt  import *
 from java.awt.event import *
 from javax.swing    import *
 from javax.swing.filechooser import *
 
 class JFileChooserTest(JPanel):
     def __init__(self):
         super(JFileChooserTest, self).__init__(BorderLayout())
         
         self.log = JTextArea(5, 20)
         self.log.margin = Insets(5,5,5,5)
         self.log.editable = False
         logScrollPane = JScrollPane(self.log)
         
         self.fc = JFileChooser()
         
         self.openButton = JButton("Open a File...")
         self.saveButton =  JButton("Save a File...")
         
         lsnr = ButtonListener(self)
         self.openButton.addActionListener(lsnr)
         self.saveButton.addActionListener(lsnr)
         
         buttonPanel = JPanel()
         buttonPanel.add(self.openButton)
         buttonPanel.add(self.saveButton)
         
         self.add(buttonPanel, BorderLayout.PAGE_START)
         self.add(logScrollPane, BorderLayout.CENTER)
         
     def createUI(self):
         frame = JFrame("FileChooserDemo")
         frame.defaultCloseOperation = JFrame.EXIT_ON_CLOSE
         frame.add(self)
         frame.pack()
         frame.visible = True
         
 class ButtonListener(ActionListener):
     def __init__(self, target):
         self.target = target
         
     def actionPerformed(self, e):
         if e.source is self.target.openButton:
             returnVal = self.target.fc.showOpenDialog(self.target)
             
             if returnVal == JFileChooser.APPROVE_OPTION:
                 file = self.target.fc.selectedFile
                 self.target.log.append("Opening: %s.\n" % file.name)
             else:
                 self.target.log.append("Open command cancelled by user.\n")
                 self.target.log.caretPosition = self.target.log.document.length
                 
         elif e.source is self.target.saveButton:
             returnVal = self.target.fc.showSaveDialog(self.target);
             if returnVal == JFileChooser.APPROVE_OPTION:
                 file = self.target.fc.selectedFile
                 self.target.log.append("Saving: %s.\n" % file.getName())
             else:
                 self.target.log.append("Save command cancelled by user.\n")
             self.target.log.caretPosition = self.target.log.document.length
             
 class Invoker(Runnable):
     def run(self):
         # Java Look & Feel(Metal)のデフォルトでボールドフォントを使用しない
         UIManager.put("swing.boldMetal", Boolean.FALSE)
         sample = JFileChooserTest()
         sample.createUI()
         
 SwingUtilities.invokeLater(Invoker())