Customizing Column Headers with Icons : JTableHeader « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JTableHeader

import java.awt.BorderLayout;
import java.awt.Component;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

class JComponentTableCellRenderer implements TableCellRenderer {
  public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
      boolean hasFocus, int row, int column) {
    return (JComponent) value;
  }
}

public class LabelHeaderSample {
  public static void main(String args[]) {
    final Object rows[][] = { { "one", "1" }, { "two", "2" }, { "three", "3" } };
    JFrame frame = new JFrame("Label Header");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    
    String headers[] = { "English", "#" };
    JTable table = new JTable(rows, headers);
    JScrollPane scrollPane = new JScrollPane(table);

    Icon redIcon = new ImageIcon("yourFile.gif");
    Icon blueIcon = new ImageIcon("yourFile.gif");

    Border headerBorder = UIManager.getBorder("TableHeader.cellBorder");

    JLabel blueLabel = new JLabel(headers[0], blueIcon, JLabel.CENTER);
    blueLabel.setBorder(headerBorder);
    JLabel redLabel = new JLabel(headers[1], redIcon, JLabel.CENTER);
    redLabel.setBorder(headerBorder);

    TableCellRenderer renderer = new JComponentTableCellRenderer();

    TableColumnModel columnModel = table.getColumnModel();

    TableColumn column0 = columnModel.getColumn(0);
    TableColumn column1 = columnModel.getColumn(1);

    column0.setHeaderRenderer(renderer);
    column0.setHeaderValue(blueLabel);

    column1.setHeaderRenderer(renderer);
    column1.setHeaderValue(redLabel);

    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}

14.61.JTableHeader
	14.61.1.	Removing the Column Headers from a Scrollable in a JTable Component
	14.61.2.	Removing Column Headers: provide empty strings as the column header names.
	14.61.3.	Hiding column headers: table.setTableHeader(null);
	14.61.4.	Using Tooltips in Table Headers: Showing Tooltip Text in a Table Header
	14.61.5.	Customizing Column Headers with Icons
	14.61.6.	Creating a Custom Column Header Renderer in a JTable Component
	14.61.7.	Setting Column Header Tool Tips in a JTable Components
	14.61.8.	Customizing a JTableHeader Look and Feel
	14.61.9.	Showing the Table Header in a Non-Scrollable JTable Component
	14.61.10.	Implementing Variable-Height Column Headers in a JTable Component
	14.61.11.	Listening for Clicks on a Column Header in a JTable Component