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

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Java Tutorial » Swing » JTableHeader 
14. 61. 5. Customizing Column Headers with Icons
Customizing Column Headers with Icons
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 (JComponentvalue;
  }
}

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(300150);
    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.Removing Column Headers: provide empty strings as the column header names.
14. 61. 3. Hiding column headers: table.setTableHeader(null);Hiding column headers: table.setTableHeader(null);
14. 61. 4. Using Tooltips in Table Headers: Showing Tooltip Text in a Table HeaderUsing Tooltips in Table Headers: Showing Tooltip Text in a Table Header
14. 61. 5. Customizing Column Headers with IconsCustomizing 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
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