Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-4629935

BiDi text layout is not correct in JTextField.

    XMLWordPrintable

    Details

      Description

      Name: pa48320 Date: 01/29/2002


      JTextField doesn't draw BiDi text correctly in the following cases. Cursor movement is also incorrect (loops within a part of the strings).

      format: {logical order} -> [visual order] [(expected results)]
              (each capital alphabet represents an Arabic letter)

      [Left to Right]
      ABC 10 -> 10CBA (10 CBA)
      ABC 10 20 -> *1 (20 10 CBA)
      ABC 10 abc -> 10CBA abc (10 CBA abc)
      ABC 10abc -> 10CAB abc (10 CBAabc)
      10 ABC 20 -> 10 20CBA (10 20 CBA)
      ABC 10 DEF -> FED 10CBA (FED 10 CBA)

      [Right to Left]
      -3ABC -> CBA-3 (-3ABC)

      *1: JTextField freezes

        To reproduce: simply run the following applet and enter the above strings.

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

      public class swingTest extends JApplet {
        private JTextField jtf1;
        private JTextField jtf2;

        public void init() {

          jtf1 = new JTextField(30);
          jtf2 = new JTextField(30);

          jtf1.setFont(new Font("dialog", 0, 12));
          jtf2.setFont(new Font("dialog", 0, 12));

          jtf1.setBounds(new Rectangle(30, 30, 300, 30));
          jtf2.setBounds(new Rectangle(400, 30, 300, 30));

          jtf1.setText("");
          jtf2.setText("");

          jtf1.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
          jtf2.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);

          Container c = getContentPane();
          c.setLayout(new FlowLayout());

          c.add(jtf1);
          c.add(jtf2);
        }
      }
      (Review ID: 138911)
      ======================================================================


      ###@###.### 2002-01-29
      the customer writes:

      I made a mistake when I do copy and paste. Could you or someone please
      correct the below?

      Wrong:
      > [Right to Left]
      > -3ABC -> CBA-3 (-3ABC)

      Correct:
      > [Right to Left]
      > -3ABC -> CBA-3 (CBA3-)
                        ~~~~~

        Attachments

          Issue Links

            Activity

              People

              Assignee:
              peterz Peter Zhelezniakov
              Reporter:
              pallenba Peter Allenbach (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              0 Start watching this issue

                Dates

                Created:
                Updated:
                Imported:
                Indexed: