в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

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2010-05-31T14:19:08Z

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== ActionMap: put(Object key, Action action) ==



<source lang="java">
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ActionMap;
import javax.swing.InputMap;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.KeyStroke;
public class MainClass {
public static void main(String args[]) {
String ACTION_KEY = "The Action";

JFrame frame = new JFrame("KeyStroke Sample");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton buttonA = new JButton("FOCUSED (control alt 7)");
JButton buttonB = new JButton("FOCUS/RELEASE (VK_ENTER)");
JButton buttonC = new JButton("ANCESTOR (VK_F4+SHIFT_MASK)");
JButton buttonD = new JButton("WINDOW (" ")");
Action actionListener = new AbstractAction() {
public void actionPerformed(ActionEvent actionEvent) {
JButton source = (JButton) actionEvent.getSource();
System.out.println("Activated: " + source.getText());
}
};
KeyStroke controlAlt7 = KeyStroke.getKeyStroke("control alt 7");
InputMap inputMap = buttonA.getInputMap();
inputMap.put(controlAlt7, ACTION_KEY);
ActionMap actionMap = buttonA.getActionMap();
actionMap.put(ACTION_KEY, actionListener);
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, true);
inputMap = buttonB.getInputMap();
inputMap.put(enter, ACTION_KEY);
buttonB.setActionMap(actionMap);
KeyStroke shiftF4 = KeyStroke.getKeyStroke(KeyEvent.VK_F4,
InputEvent.SHIFT_MASK);
inputMap = buttonC
.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
inputMap.put(shiftF4, ACTION_KEY);
buttonC.setActionMap(actionMap);
KeyStroke space = KeyStroke.getKeyStroke(" ");
inputMap = buttonD.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
inputMap.put(space, ACTION_KEY);
buttonD.setActionMap(actionMap);
frame.setLayout(new GridLayout(2, 2));
frame.add(buttonA);
frame.add(buttonB);
frame.add(buttonC);
frame.add(buttonD);
frame.setSize(400, 200);
frame.setVisible(true);
}
}

</source>

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Java by API/javax.swing/ActionMap - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия