JTextComponent 1 - 版の履歴

2020年2月16日 (日) 04:28にPirotoによる

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2020年2月15日 (土) 08:37にPirotoによる

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2020年2月15日 (土) 08:21にPirotoによる

2020-02-15T08:21:09Z

2020年2月15日 (土) 08:04にPirotoによる

2020-02-15T08:04:01Z

Piroto: ページの作成:「==JTextComponent 1== [Jython JTextComponent 1][Jython Swing][Swing][Jython][Python] *http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html#comma…」

2020-02-15T07:33:46Z

ページの作成:「==JTextComponent 1== [Jython JTextComponent 1][Jython Swing][Swing][Jython][Python] *http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html#comma…」

新規ページ

==JTextComponent 1==
[Jython JTextComponent 1][Jython Swing][Swing][Jython][Python]

*http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html#commands

===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:0740_jtext.jpg]]

=====ソースコード=====

import java.awt.BorderLayout;
import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.util.HashMap;
import java.util.Map;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;
import javax.swing.event.UndoableEditEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.text.DefaultEditorKit;
import javax.swing.text.Document;
import javax.swing.text.JTextComponent;
import javax.swing.undo.UndoManager;

/**
* @see http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html#commands
*/
public class JTextTest {
private JFrame frame;

private Map<Object, Action> actionMap = new HashMap<Object, Action>();
private UndoManager undo = new UndoManager();

private UndoAction undoAction;
private RedoAction redoAction;

private JMenu getMenu() {
JMenu menu = new JMenu("Edit");

menu.add(actionMap.get(DefaultEditorKit.cutAction));
menu.add(actionMap.get(DefaultEditorKit.copyAction));
menu.add(actionMap.get(DefaultEditorKit.pasteAction));
menu.addSeparator();

undoAction = new UndoAction();
menu.add(undoAction);

redoAction = new RedoAction();
menu.add(redoAction);

menu.addSeparator();
menu.add(actionMap.get(DefaultEditorKit.selectAllAction));

return menu;
}
private void createActionMap(JTextComponent txt) {
Action[] actions = txt.getActions();
for(Action action : actions) {
this.actionMap.put(action.getValue(Action.NAME), action);
}
}
private void createUI() {
frame = new JFrame("TextTest");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JTextArea txtArea = new JTextArea(10, 30);

// Documentのイベント感知(Undo Redo 管理を行う)
Document doc = txtArea.getDocument();
doc.addUndoableEditListener(
new UndoableEditListener() {
public void undoableEditHappened(UndoableEditEvent e) {
undo.addEdit(e.getEdit());
undoAction.updateState();
redoAction.updateState();
}
}
);

frame.getContentPane().add(new JScrollPane(txtArea), BorderLayout.CENTER);

// TextComponentが持つActionをMapに格納
createActionMap(txtArea);
// メニューを作成
JMenu menu = getMenu();
JMenuBar mb = new JMenuBar();
mb.add(menu);
frame.setJMenuBar(mb);

// テキストのUndo、Redoにキーを割り当てる (Ctrl+z,Ctrl+y)
InputMap inputMap = txtArea.getInputMap();
KeyStroke undoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Z,Event.CTRL_MASK);
KeyStroke redoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Y,Event.CTRL_MASK);
inputMap.put(undoKey, undoAction);
inputMap.put(redoKey, redoAction);

frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(
new Runnable(){
public void run() {
JTextTest jft = new JTextTest();
jft.createUI();
}
}
);
}

@SuppressWarnings("serial")
class UndoAction extends AbstractAction {
public UndoAction() {
super("Undo");
setEnabled(false);
}
public void actionPerformed(ActionEvent e) {
try {
undo.undo();
} catch (Exception ex) {
ex.printStackTrace();
}
updateState();
// Redo を可能に
redoAction.updateState();
}
public void updateState() {
setEnabled(undo.canUndo());
}
}

@SuppressWarnings("serial")
class RedoAction extends AbstractAction {
public RedoAction() {
super("Redo");
setEnabled(false);
}
public void actionPerformed(ActionEvent e) {
try {
undo.redo();
} catch (Exception ex) {
ex.printStackTrace();
}
updateState();
}
public void updateState() {
setEnabled(undo.canRedo());
}
}
}

@@ 1行目: / 1行目: @@
 ==JTextComponent 1==
-[[Jython JTextComponent 1]][[Jython Swing]][[Swing]][[Jython]][[Python]]
+[[Jython JTextComponent 1]] | [[Jython Swing]] | [[Swing]] | [[Jython]] | [[Python]] |
 *http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html#commands

@@ 1行目: / 1行目: @@
 ==JTextComponent 1==
-[[Jython JTextComponent 1][Jython Swing][Swing][Jython][Python]]
+[[Jython JTextComponent 1]][[Jython Swing]][[Swing]][[Jython]][[Python]]
 *http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html#commands

@@ 1行目: / 1行目: @@
-==JTextComponent 1==
+==[[JTextComponent 1]]==
 [[Jython JTextComponent 1]] | [[Jython Swing]] | [[Swing]] | [[Jython]] | [[Python]] |
@@ 7行目: / 7行目: @@
 *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
+*Undo、[[R]]edoの実装
 *Documentの利用
 *Documentのイベント感知
@@ 27行目: / 27行目: @@
   import javax.swing.Action;
   import javax.swing.InputMap;
-  import javax.swing.JFrame;
+  import javax.swing.[[JFrame]];
-  import javax.swing.JMenu;
+  import javax.swing.J[[Menu]];
-  import javax.swing.JMenuBar;
+  import javax.swing.J[[Menu]]Bar;
   import javax.swing.JScrollPane;
   import javax.swing.JTextArea;
   import javax.swing.KeyStroke;
-  import javax.swing.SwingUtilities;
+  import javax.swing.[[Swing]]Utilities;
   import javax.swing.event.UndoableEditEvent;
   import javax.swing.event.UndoableEditListener;
@@ 45行目: / 45行目: @@
    */
   public class JTextTest {
-      private JFrame frame;
+      private [[JFrame]] frame;
       private Map&lt;Object, Action&gt; actionMap = new HashMap&lt;Object, Action&gt;();
@@ 51行目: / 51行目: @@
       private UndoAction undoAction;
-      private RedoAction redoAction;
+      private [[R]]edoAction redoAction;
-      private JMenu getMenu() {
+      private J[[Menu]] get[[Menu]]() {
-          JMenu menu = new JMenu("Edit");
+          J[[Menu]] menu = new J[[Menu]]("Edit");
           menu.add(actionMap.get(DefaultEditorKit.cutAction));
@@ 64行目: / 64行目: @@
           menu.add(undoAction);
-          redoAction = new RedoAction();
+          redoAction = new [[R]]edoAction();
           menu.add(redoAction);
@@ 79行目: / 79行目: @@
+      }
       private void createUI() {
-          frame = new JFrame("TextTest");
+          frame = new [[JFrame]]("TextTest");
-          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+          frame.setDefaultCloseOperation([[JFrame]].EXIT_ON_CLOSE);
           JTextArea txtArea = new JTextArea(10, 30);
-          // Documentのイベント感知(Undo Redo 管理を行う)
+          // Documentのイベント感知(Undo [[R]]edo 管理を行う)
           Document doc = txtArea.getDocument();
           doc.addUndoableEditListener(
@@ 96行目: / 96行目: @@
           );
-          frame.getContentPane().add(new JScrollPane(txtArea), BorderLayout.CENTER);
+          frame.getContentPane().add(new JScrollPane(txtArea), BorderLayout.CENTE[[R]]);
           // TextComponentが持つActionをMapに格納
           createActionMap(txtArea);
           // メニューを作成
-          JMenu menu = getMenu();
+          J[[Menu]] menu = get[[Menu]]();
-          JMenuBar mb = new JMenuBar();
+          J[[Menu]]Bar mb = new J[[Menu]]Bar();
           mb.add(menu);
-          frame.setJMenuBar(mb);
+          frame.setJ[[Menu]]Bar(mb);
-          // テキストのUndo、Redoにキーを割り当てる (Ctrl+z,Ctrl+y)
+          // テキストのUndo、[[R]]edoにキーを割り当てる (Ctrl+z,Ctrl+y)
           InputMap inputMap = txtArea.getInputMap();
-          KeyStroke undoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Z,Event.CTRL_MASK);
+          KeyStroke undoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Z,Event.CT[[R]]L_MASK);
-          KeyStroke redoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Y,Event.CTRL_MASK);
+          KeyStroke redoKey = KeyStroke.getKeyStroke(KeyEvent.VK_Y,Event.CT[[R]]L_MASK);
           inputMap.put(undoKey, undoAction);
           inputMap.put(redoKey, redoAction);
@@ 117行目: / 117行目: @@
+      }
       public static void main(String[] args) {
-          SwingUtilities.invokeLater(
+          [[Swing]]Utilities.invokeLater(
-                  new Runnable(){
+                  new [[R]]unnable(){
                       public void run() {
                           JTextTest jft = new JTextTest();
@@ 140行目: / 140行目: @@
+              }
               updateState();
-              // Redo を可能に
+              // [[R]]edo を可能に
               redoAction.updateState();
+          }
@@ 149行目: / 149行目: @@
       @SuppressWarnings("serial")
-      class RedoAction extends AbstractAction {
+      class [[R]]edoAction extends AbstractAction {
-          public RedoAction() {
+          public [[R]]edoAction() {
-              super("Redo");
+              super("[[R]]edo");
               setEnabled(false);
+          }
@@ 163行目: / 163行目: @@
+          }
           public void updateState() {
-              setEnabled(undo.canRedo());
+              setEnabled(undo.can[[R]]edo());
+          }
+      }
+  }