Neuzuordnung Tastatur-Navigation mit Jython/Swing

Question

ich mehrere Navigationstasten neu zuordnen bin versucht:

• ENTER: wie Standard-TAB-Verhalten (Fokus zur nächsten Kontrolle)
• SHIFT arbeiten + ENTER: arbeiten SHIFT + TAB-Verhalten (Fokus zur vorherige Kontrolle)
• UP/DOWN Pfeile: vorherige/nächste Steuer
• etc

ich habe versucht, mit einem paar aber Optionen ohne Glück:

from javax.swing import * 
from java.awt import * 

class JTextFieldX(JTextField): 

    def __init__(self, *args): 
     # Thanks, Jack!! 
     JTextField.__init__(
      self, 
      focusGained=self.onGotFocus, 
      focusLost=self.onLostFocus, 
      *args) 

    def onGotFocus (self, event): 
     print "onGotFocus " 
     self.selectionStart = 0 
     self.selectionEnd = len(self.text) 

    def onLostFocus (self, event): 
     print "onLostFocus ", self.name 


class Test(JFrame): 
    def __init__(self): 
     JFrame.__init__(self, 
         'JDesktopPane and JInternalFrame Demo', 
         size=(600, 300), 
         defaultCloseOperation=JFrame.EXIT_ON_CLOSE) 

     self.desktop = JDesktopPane() 
     self.contentPane.add(JScrollPane(self.desktop)) # This is the same as self.getContentPane().add(...) 

     frame = JInternalFrame("Frame", 1, 1, 1, 1, size=(400, 400), visible=1) 
     panel = JPanel() 

     self.label = JLabel('Hello from Jython') 
     panel.add(self.label) 

     self.textfield1 = JTextFieldX('Type something here', 15) 
     panel.add(self.textfield1) 

     self.textfield2 = JTextFieldX('and click Copy', 15) 
     panel.add(self.textfield2) 

     panel.add(copyButton) 

     frame.add(panel) 
     frame.pack() 
     self.desktop.add(frame) 

     # ENTER=SPACE remapping for buttons (works ok, but only for buttons) 
#  inputMap = UIManager.getDefaults().get("Button.focusInputMap") 
#  pressedAction = inputMap.get(KeyStroke.getKeyStroke("pressed SPACE")); 
#  releasedAction = inputMap.get(KeyStroke.getKeyStroke("released SPACE")); 
#  # pressedAction = self.noAction 
#  inputMap.put (KeyStroke.getKeyStroke("pressed ENTER"), pressedAction) 
#  inputMap.put (KeyStroke.getKeyStroke("released ENTER"), releasedAction) 

#  # Attemp to remap ENTER=TAB for TextFields (didn't work, no errors) 
#  inputMap = UIManager.getDefaults().get("TextField.focusInputMap") 
#  pressedAction = inputMap.get(KeyStroke.getKeyStroke("pressed TAB")); 
#  releasedAction = inputMap.get(KeyStroke.getKeyStroke("released TAB")); 
#  inputMap.put (KeyStroke.getKeyStroke("pressed W"), pressedAction) 
#  inputMap.put (KeyStroke.getKeyStroke("released W"), releasedAction) 

#  # Attemp to remap ENTER=TAB for all controls (didn't work, no errors) 
#  spaceMap = self.textfield1.getInputMap().get(KeyStroke.getKeyStroke(event.KeyEvent.VK_TAB, 0, True)); 
#  self.textfield1.getInputMap().put(KeyStroke.getKeyStroke(event.KeyEvent.VK_ENTER, 0, True),spaceMap); 

     frame.setSelected(1) 
     frame.moveToFront() 

    def noAction (self, event): 
     print "noAction" 
     pass 

if __name__ == '__main__': 
    test = Test() 
    test.setLocation(100, 100) 
    test.show() 

Answer 1

Ich habe einen neuen Beitrag zur Lesbarkeit gemacht.

self.textfield1 = JTextField('Type something here',15,focusGained=self.myOnFocus,keyPressed=self.myOnKey) 

#create textfield2...must be created before can be referenced below. 

self.textfield1.setNextFocusableComponent(self.textfield2) 

dann in Ihren Event-Handler:

def myOnKey(self,event): 
    print str(event) # see all other info you can get. 
    key_code = event.keyCode 
    if key_code == 10: 
     print "you pressed enter" 
     # simulate the "tab" just focus next textbox... 
     gotFocus = event.getComponent() 
     nextToFocus = gotFocus.nextFocusableComponent 
     nextToFocus.requestFocus() 

sollte es tun.

Answer 2

In der Schaukel zuständigen KeyPressed, dass Sie für den Tastendruck hören möchten auf

self.textfield1 = JTextField('Type something here',15,focusGained=self.myOnFocus,keyPressed=self.myOnKey) 

myOnKey kann alles in diesem Verfahren genannt werden so etwas wie:

def myOnKey(self,event): 
    print str(event) # see all other info you can get. 
    key_code = event.keyCode 
    if key_code == 10: 
     print "you pressed enter" 
     # simulate the "tab" by just focusing the next textbox... 

Dann sollten Sie nur in der Lage sein, mit dem Druck str zu spielen, um (eve nt) Befehl, um alle gewünschten Tastencodes zu erhalten.

Answer 3

verwendet Schließlich Teil Antwort von Jacks (das keyPressed Ereignis), aber ohne manuelle Einstellung setNextFocusableComponent:

keyFocusMgr = KeyboardFocusManager.getCurrentKeyboardFocusManager() 
keyFocusMgr.focusNextComponent()