Win L&F: JTable fails to draw header containing empty string under Windows Look-

Name: yyT116575 Date: 08/15/2001


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b65, mixed mode)

When using the Windows Look-and-Feel, JTable renders header
with zero height if the first column has empty title ("").

The following example demonstrates the problem:


import javax.swing.*;
import javax.swing.table.*;

public class SwingHeaderProblem extends JFrame {

  static String columnNames[] = {"", "First", "Last"};

  SwingHeaderProblem() {

    TableModel dataModel = new AbstractTableModel() {
      public String getColumnName(int col) {return columnNames[col];}
      public int getColumnCount() { return columnNames.length; }
      public int getRowCount() { return 8; }
      public Object getValueAt(int row, int col) {
        switch(col) {
          case 0: return "x"; break;
          case 1: return "John"; break;
          case 2: return "Smith"; break;
          default: return null;
        }
      }
    };
    JTable table = new JTable(dataModel);
    JScrollPane scrollPane = new JScrollPane(table);
    getContentPane().add(scrollPane);
  }


  public void setVisible(boolean b) {
    if (!b) System.exit(0);
  }

  public static void main(String[] args) {
    try {
      UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception ex) {
      ex.printStackTrace();
      System.exit(-1);
    }
    SwingHeaderProblem w = new SwingHeaderProblem();
    w.setSize(300,200);
    w.show();

  }
}

(Review ID: 130031)
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