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  1. JDK
  2. JDK-4186905

JTextPane no longer dispatches keyTyped events to a KeyListener

    Details

    • Subcomponent:
    • Resolved In Build:
      1.2.2
    • CPU:
      generic, x86, sparc
    • OS:
      generic, solaris_2.5.1, windows_95, windows_98, windows_nt

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        Description

        ********************************************************************************

        This bug record is specific to Java 2 SDK Standard Edition v. 1.2 and v. 1.2.1.

        Please do not add customer calls relating to 1.1.x to this record.

        ********************************************************************************

        Name: tb29552 Date: 11/03/98


        /*
        JTextPane no longer dispatches keyTyped events

        The following code reproduces this problem.
        When run under i586/win_nt_4.0 you will see
        only the keyPressed and keyReleased events.

        Run the same demo under SPARC/Solaris and you
        will see keyPressed, keyTyped and keyReleased
        for each key you strike.

        This showed up under JDK 1.2 RC 1 and worked
        fine under JDK 1.2beta4:
        */

        import javax.swing.*;
        import java.awt.*;
        import java.awt.event.*;

        /**
         * Demonstrates problems with JDK1.2 RC 1--JTextPane no longer
         * dispatches keyTyped events like it used to in JDK1.2beta4. Typing
         * some characters in the pane after startup will show that only
         * keyPressed and keyReleased events are generated...
         */
        public class TestJTP {
            private static final float INITIAL_DOC_HEIGHT_PERCENT = 0.20f;
            private static final float INITIAL_WIDTH_PERCENT = 0.37f;
            public static void main(String[] argv) {
                JFrame aFrame = new JFrame();
                Dimension aScreenRes = Toolkit.getDefaultToolkit().getScreenSize();
                aScreenRes.height = (int) (INITIAL_DOC_HEIGHT_PERCENT
                                           * aScreenRes.height);
                aScreenRes.width = (int) (INITIAL_WIDTH_PERCENT
                                          * aScreenRes.width);
                JTextPane itsTextPane = new JTextPane();
                JScrollPane itsScrollPane = new JScrollPane(itsTextPane,
                                           JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                                            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
                itsScrollPane.setPreferredSize(aScreenRes);
                // Register the listener to keep track of keyboard events:
                itsTextPane.addKeyListener(
                                           new KeyAdapter() {
                    public void keyTyped(KeyEvent e) {
                        System.out.println("Key type detected:" + e.getKeyChar());
                    }
                    public void keyPressed(KeyEvent e) {
                        System.out.println("Key press detected:" + e.getKeyChar());
                    }
                    public void keyReleased(KeyEvent e) {
                        System.out.println("Key release detected:" + e.getKeyChar());
                    }
                }
                );
                aFrame.getContentPane().setLayout(new BorderLayout());
                aFrame.getContentPane().add(itsScrollPane, "Center");
                aFrame.pack();
                aFrame.setVisible(true);
            }
        }

        (Review ID: 41481)
        ======================================================================


        daniel.indrigo@Canada 1999-01-19

        JTextfield has the same problem

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                • Assignee:
                  nlindenbsunw Norbert Lindenberg (Inactive)
                  Reporter:
                  tbell Tim Bell
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                    Updated:
                    Resolved:
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