Table Row Header Example : Grid Table « Swing Components « Java






  1. Java
  2. Swing Components
  3. Grid Table

Table Row Header Example

Table Row Header Example
 
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1beta3) */
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.AbstractListModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;

/**
 * @version 1.0 11/09/98
 */

class RowHeaderRenderer extends JLabel implements ListCellRenderer {

  RowHeaderRenderer(JTable table) {
    JTableHeader header = table.getTableHeader();
    setOpaque(true);
    setBorder(UIManager.getBorder("TableHeader.cellBorder"));
    setHorizontalAlignment(CENTER);
    setForeground(header.getForeground());
    setBackground(header.getBackground());
    setFont(header.getFont());
  }

  public Component getListCellRendererComponent(JList list, Object value,
      int index, boolean isSelected, boolean cellHasFocus) {
    setText((value == null) ? "" : value.toString());
    return this;
  }
}

public class RowHeaderExample extends JFrame {

  public RowHeaderExample() {
    super("Row Header Example");
    setSize(300, 150);

    ListModel lm = new AbstractListModel() {
      String headers[] = { "a", "b", "c", "d", "e", "f", "g", "h", "i" };

      public int getSize() {
        return headers.length;
      }

      public Object getElementAt(int index) {
        return headers[index];
      }
    };

    DefaultTableModel dm = new DefaultTableModel(lm.getSize(), 10);
    JTable table = new JTable(dm);
    table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

    JList rowHeader = new JList(lm);
    rowHeader.setFixedCellWidth(50);

    rowHeader.setFixedCellHeight(table.getRowHeight()
        + table.getRowMargin());
    //                           + table.getIntercellSpacing().height);
    rowHeader.setCellRenderer(new RowHeaderRenderer(table));

    JScrollPane scroll = new JScrollPane(table);
    scroll.setRowHeaderView(rowHeader);
    getContentPane().add(scroll, BorderLayout.CENTER);
  }

  public static void main(String[] args) {
    RowHeaderExample frame = new RowHeaderExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    frame.setVisible(true);
  }
}








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