в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

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2010-05-31T14:12:14Z

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== Keymap: addActionForKeyStroke(KeyStroke key, Action a) ==



<source lang="java">
import javax.swing.*;
import javax.swing.text.*;
import java.util.Hashtable;
import java.awt.event.*;
import java.awt.BorderLayout;
public class KeymapExample {
public static void main(String[] args) {
JTextArea area = new JTextArea(6, 32);
Keymap parent = area.getKeymap();
Keymap newmap = JTextComponent.addKeymap("KeymapExampleMap", parent);
KeyStroke u = KeyStroke.getKeyStroke(KeyEvent.VK_U, InputEvent.CTRL_MASK);
Action actionU = new UpWord();
newmap.addActionForKeyStroke(u, actionU);
Action actionList[] = area.getActions();
Hashtable lookup = new Hashtable();
for (int j=0; j < actionList.length; j+=1)
lookup.put(actionList[j].getValue(Action.NAME), actionList[j]);
KeyStroke L = KeyStroke.getKeyStroke(KeyEvent.VK_L, InputEvent.CTRL_MASK);
Action actionL = (Action)lookup.get(DefaultEditorKit.selectLineAction);
newmap.addActionForKeyStroke(L, actionL);
KeyStroke W = KeyStroke.getKeyStroke(KeyEvent.VK_W, InputEvent.CTRL_MASK);
Action actionW = (Action)lookup.get(DefaultEditorKit.selectWordAction);
newmap.addActionForKeyStroke(W, actionW);
area.setKeymap(newmap);
JFrame f = new JFrame("KeymapExample");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);
area.setText("www.\n jexp \n .ru.");
f.pack();
f.setVisible(true);
}
public static class UpWord extends TextAction {
public UpWord() {
super("uppercase-word-action");
}
public void actionPerformed(ActionEvent e) {
JTextComponent comp = getTextComponent(e);
if (comp == null) return;
Document doc = comp.getDocument();
int start = comp.getSelectionStart();
int end = comp.getSelectionEnd();
try {
int left = javax.swing.text.Utilities.getWordStart(comp, start);
int right = javax.swing.text.Utilities.getWordEnd(comp, end);
String word = doc.getText(left, right-left);
doc.remove(left, right-left);
doc.insertString(left, word.toUpperCase(), null);
comp.setSelectionStart(start); // restore previous position/selection
comp.setSelectionEnd(end);
} catch (BadLocationException ble) { return; }
}
}
}

</source>



== Keymap: removeKeyStrokeBinding(KeyStroke keystroke) ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.text.Keymap;
public class MainClass {
public static void main(final String args[]) {
JFrame frame = new JFrame("Default Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTextField textField = new JTextField();
frame.add(textField, BorderLayout.NORTH);
JPanel panel = new JPanel();
JButton defaultButton = new JButton("Default Button");
defaultButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println(actionEvent.getActionCommand() + " selected");
}
});
panel.add(defaultButton);
JButton otherButton = new JButton("Other Button");
otherButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println(actionEvent.getActionCommand() + " selected");
}
});
panel.add(otherButton);
frame.add(panel, BorderLayout.SOUTH);
Keymap keymap = textField.getKeymap();
KeyStroke keystroke = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, false);
keymap.removeKeyStrokeBinding(keystroke);
frame.getRootPane().setDefaultButton(defaultButton);
frame.setSize(250, 150);
frame.setVisible(true);
}
}

</source>

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в 17:43, 31 мая 2010

Admin: 1 версия