Java by API/javax.accessibility/AccessibleText — различия между версиями

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м (1 версия)
 
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Версия 17:43, 31 мая 2010

AccessibleText: getCaretPosition()

import java.awt.Dimension;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleText;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class MainClass extends JFrame {
  MainClass() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel p = new JPanel();
    p.setPreferredSize(new Dimension(300, 50));
    JTextField jtf = new JTextField(20);
    jtf.setPreferredSize(new Dimension(100, 20));
    p.add(jtf);
    getContentPane().add(p);
    pack();
    setVisible(true);
  }
  public static void main(String[] args) {
    MainClass ad8 = new MainClass();
    try {
      Thread.sleep(5000);
    } catch (InterruptedException e) {
    }
    ad8.dumpTextInfo(ad8.getAccessibleContext());
  }
  void dumpTextInfo(AccessibleContext ac) {
    AccessibleText at = ac.getAccessibleText();
    if (at != null) {
      System.out.println("Caret position = " + at.getCaretPosition());
      System.out.println("Selected text = " + at.getSelectedText());
      return;
    }
    int nChildren = ac.getAccessibleChildrenCount();
    for (int i = 0; i < nChildren; i++)
      dumpTextInfo(ac.getAccessibleChild(i).getAccessibleContext());
  }
}





AccessibleText: getSelectedText()

import java.awt.Dimension;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleText;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class MainClass extends JFrame {
  MainClass() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel p = new JPanel();
    p.setPreferredSize(new Dimension(300, 50));
    JTextField jtf = new JTextField(20);
    jtf.setPreferredSize(new Dimension(100, 20));
    p.add(jtf);
    getContentPane().add(p);
    pack();
    setVisible(true);
  }
  public static void main(String[] args) {
    MainClass ad8 = new MainClass();
    try {
      Thread.sleep(5000);
    } catch (InterruptedException e) {
    }
    ad8.dumpTextInfo(ad8.getAccessibleContext());
  }
  void dumpTextInfo(AccessibleContext ac) {
    AccessibleText at = ac.getAccessibleText();
    if (at != null) {
      System.out.println("Caret position = " + at.getCaretPosition());
      System.out.println("Selected text = " + at.getSelectedText());
      return;
    }
    int nChildren = ac.getAccessibleChildrenCount();
    for (int i = 0; i < nChildren; i++)
      dumpTextInfo(ac.getAccessibleChild(i).getAccessibleContext());
  }
}