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ページの作成:「==Jython JTextComponent 1== [JTextComponent 1][Jython Swing][Swing][Jython][Python] ===方針=== *半ば強引に、[JTextComponent 1] [Swingで作成したサンプ…」
==Jython JTextComponent 1==
[JTextComponent 1][Jython Swing][Swing][Jython][Python]
===方針===
*半ば強引に、[JTextComponent 1] [Swingで作成したサンプル]を Jythonに書き換えてみる。
===内容===
*メニューとアクションの割付
*キーボード押下との割付
*Undo、Redoの実装
*Documentの利用
*Documentのイベント感知
===ソースコード===
=====実行例=====
[[File:0749_js_jtext.jpg]]
=====ソースコード=====
# -*- coding: utf-8 -*-
from java.lang import *
from java.awt import BorderLayout,Event
from java.awt.event import ActionEvent, KeyEvent
from java.util import HashMap, Map
from javax.swing import AbstractAction, Action, InputMap
from javax.swing import SwingUtilities, JFrame, JMenu, JMenuBar, JScrollPane, JTextArea, KeyStroke
from javax.swing.event import UndoableEditEvent, UndoableEditListener
from javax.swing.text import DefaultEditorKit, Document, JTextComponent
from javax.swing.undo import UndoManager
class JTextTest(object):
def createUI(self):
frame = JFrame("TextTest")
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
txtArea = JTextArea(10, 30)
frame.contentPane.add(JScrollPane(txtArea), BorderLayout.CENTER)
# TextComponentが持つActionをMapに格納
actionMap = {}
for action in txtArea.actions:
actionMap[action.getValue(Action.NAME)] = action
undo = UndoManager()
action_param = {}
action_param['undo'] = undo
redoAction = RedoAction(**action_param)
action_param['redoAction'] = redoAction
undoAction = UndoAction(**action_param)
action_param['undoAction'] = undoAction
# メニューを作成
menu = JMenu("Edit")
menu.add(actionMap.get(DefaultEditorKit.cutAction))
menu.add(actionMap.get(DefaultEditorKit.copyAction))
menu.add(actionMap.get(DefaultEditorKit.pasteAction))
menu.addSeparator()
menu.add(undoAction)
menu.add(redoAction)
menu.addSeparator()
menu.add(actionMap.get(DefaultEditorKit.selectAllAction))
mb = JMenuBar()
mb.add(menu)
frame.JMenuBar = mb
# Documentのイベント感知(Undo Redo 管理を行う)
doc = txtArea.document
doc.addUndoableEditListener(UndoEventHandler(**action_param))
# テキストのUndo、Redoにキーを割り当てる (Ctrl+z,Ctrl+y)
inputMap = txtArea.inputMap
undoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Z,Event.CTRL_MASK)
redoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Y,Event.CTRL_MASK)
inputMap.put(undoKey, undoAction)
inputMap.put(redoKey, redoAction)
frame.pack()
frame.visible = True
class UndoEventHandler(UndoableEditListener):
def __init__(self, undo, undoAction, redoAction):
self.undo = undo
self.undoAction = undoAction
self.redoAction = redoAction
def undoableEditHappened(self, e):
self.undo.addEdit(e.edit)
self.undoAction.updateState()
self.redoAction.updateState()
class UndoAction(AbstractAction):
def __init__(self, undo, redoAction):
super(UndoAction, self).__init__("Undo")
self.undo = undo
self.redoAction = redoAction
self.enabled = False
def actionPerformed(self, e):
try:
self.undo.undo()
except Exception, ex:
ex.printStackTrace()
self.updateState()
# Redo を可能に
self.redoAction.updateState()
def updateState(self):
self.setEnabled(self.undo.canUndo())
class RedoAction(AbstractAction):
def __init__(self, undo):
super(RedoAction, self).__init__("Redo")
self.undo = undo
self.enabled = False
def actionPerformed(self, e):
try:
self.undo.redo()
except Exception, ex:
ex.printStackTrace()
self.updateState()
def updateState(self):
self.setEnabled(self.undo.canRedo())
class Invoker(Runnable):
def run(self):
jtt = JTextTest()
jtt.createUI()
SwingUtilities.invokeLater(Invoker())
[JTextComponent 1][Jython Swing][Swing][Jython][Python]
===方針===
*半ば強引に、[JTextComponent 1] [Swingで作成したサンプル]を Jythonに書き換えてみる。
===内容===
*メニューとアクションの割付
*キーボード押下との割付
*Undo、Redoの実装
*Documentの利用
*Documentのイベント感知
===ソースコード===
=====実行例=====
[[File:0749_js_jtext.jpg]]
=====ソースコード=====
# -*- coding: utf-8 -*-
from java.lang import *
from java.awt import BorderLayout,Event
from java.awt.event import ActionEvent, KeyEvent
from java.util import HashMap, Map
from javax.swing import AbstractAction, Action, InputMap
from javax.swing import SwingUtilities, JFrame, JMenu, JMenuBar, JScrollPane, JTextArea, KeyStroke
from javax.swing.event import UndoableEditEvent, UndoableEditListener
from javax.swing.text import DefaultEditorKit, Document, JTextComponent
from javax.swing.undo import UndoManager
class JTextTest(object):
def createUI(self):
frame = JFrame("TextTest")
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
txtArea = JTextArea(10, 30)
frame.contentPane.add(JScrollPane(txtArea), BorderLayout.CENTER)
# TextComponentが持つActionをMapに格納
actionMap = {}
for action in txtArea.actions:
actionMap[action.getValue(Action.NAME)] = action
undo = UndoManager()
action_param = {}
action_param['undo'] = undo
redoAction = RedoAction(**action_param)
action_param['redoAction'] = redoAction
undoAction = UndoAction(**action_param)
action_param['undoAction'] = undoAction
# メニューを作成
menu = JMenu("Edit")
menu.add(actionMap.get(DefaultEditorKit.cutAction))
menu.add(actionMap.get(DefaultEditorKit.copyAction))
menu.add(actionMap.get(DefaultEditorKit.pasteAction))
menu.addSeparator()
menu.add(undoAction)
menu.add(redoAction)
menu.addSeparator()
menu.add(actionMap.get(DefaultEditorKit.selectAllAction))
mb = JMenuBar()
mb.add(menu)
frame.JMenuBar = mb
# Documentのイベント感知(Undo Redo 管理を行う)
doc = txtArea.document
doc.addUndoableEditListener(UndoEventHandler(**action_param))
# テキストのUndo、Redoにキーを割り当てる (Ctrl+z,Ctrl+y)
inputMap = txtArea.inputMap
undoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Z,Event.CTRL_MASK)
redoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Y,Event.CTRL_MASK)
inputMap.put(undoKey, undoAction)
inputMap.put(redoKey, redoAction)
frame.pack()
frame.visible = True
class UndoEventHandler(UndoableEditListener):
def __init__(self, undo, undoAction, redoAction):
self.undo = undo
self.undoAction = undoAction
self.redoAction = redoAction
def undoableEditHappened(self, e):
self.undo.addEdit(e.edit)
self.undoAction.updateState()
self.redoAction.updateState()
class UndoAction(AbstractAction):
def __init__(self, undo, redoAction):
super(UndoAction, self).__init__("Undo")
self.undo = undo
self.redoAction = redoAction
self.enabled = False
def actionPerformed(self, e):
try:
self.undo.undo()
except Exception, ex:
ex.printStackTrace()
self.updateState()
# Redo を可能に
self.redoAction.updateState()
def updateState(self):
self.setEnabled(self.undo.canUndo())
class RedoAction(AbstractAction):
def __init__(self, undo):
super(RedoAction, self).__init__("Redo")
self.undo = undo
self.enabled = False
def actionPerformed(self, e):
try:
self.undo.redo()
except Exception, ex:
ex.printStackTrace()
self.updateState()
def updateState(self):
self.setEnabled(self.undo.canRedo())
class Invoker(Runnable):
def run(self):
jtt = JTextTest()
jtt.createUI()
SwingUtilities.invokeLater(Invoker())
© 2006 矢木浩人
