Mega Code Archive
Animated Icon Header Example
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// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1.1beta2) */
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.ImageObserver;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.JTableHeader;
/**
* @version 1.0 06/19/99
*/
public class AnimatedIconHeaderExample extends JFrame {
public AnimatedIconHeaderExample() {
super("AnimatedIconHeader Example");
final Object[][] data = new Object[][] { { "Leopard", "Lycaon" },
{ "Jagur", "Jackal" }, { "Cheetah", "Coyote" },
{ "Puma", "Dingo" }, { "Lynx", "Fox" }, { "Tom", "Hot" } };
final String[] column = new String[] { "Cat", "Dog" };
ImageIcon[] icons = { new ImageIcon("rntsoftAnimation.gif"),
new ImageIcon("rntsoftAnimation.gif") };
AbstractTableModel model = new AbstractTableModel() {
public int getColumnCount() {
return column.length;
}
public int getRowCount() {
return data.length;
}
public String getColumnName(int col) {
return column[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
};
JTable table = new JTable(model);
JTableHeader header = table.getTableHeader();
JLabel renderer;
for (int i = 0; i < model.getColumnCount(); i++) {
renderer = (JLabel) table.getColumn(column[i]).getHeaderRenderer();
renderer.setIcon(icons[i]);
// If you have only one column.
// icons[i].setImageObserver(header);
icons[i].setImageObserver(new HeaderImageObserver(header, i));
}
JScrollPane pane = new JScrollPane(table);
getContentPane().add(pane);
}
class HeaderImageObserver implements ImageObserver {
JTableHeader header;
int col;
HeaderImageObserver(JTableHeader header, int col) {
this.header = header;
this.col = col;
}
public boolean imageUpdate(Image img, int flags, int x, int y, int w,
int h) {
if ((flags & (FRAMEBITS | ALLBITS)) != 0) {
Rectangle rect = header.getHeaderRect(col);
header.repaint(rect);
}
return (flags & (ALLBITS | ABORT)) == 0;
}
}
public static void main(String[] args) {
AnimatedIconHeaderExample frame = new AnimatedIconHeaderExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setSize(300, 140);
frame.setVisible(true);
}
}
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