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package javademo.swing.button.CustomIconDemo;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import javax.swing.Icon;
import javax.swing.SwingConstants;
/* This class is used by CustomIconDemo.java. */
public class ArrowIcon implements Icon, SwingConstants
{
private int width = 9;
private int height = 18;
private int[] xPoints = new int[4];
private int[] yPoints = new int[4];
public ArrowIcon(int direction)
{
if (direction == LEADING)
{
xPoints[0] = width;
yPoints[0] = -1;
xPoints[1] = width;
yPoints[1] = height;
xPoints[2] = 0;
yPoints[2] = height / 2;
xPoints[3] = 0;
yPoints[3] = height / 2 - 1;
}
else
/* direction == TRAILING */{
xPoints[0] = 0;
yPoints[0] = -1;
xPoints[1] = 0;
yPoints[1] = height;
xPoints[2] = width;
yPoints[2] = height / 2;
xPoints[3] = width;
yPoints[3] = height / 2 - 1;
}
}
public int getIconHeight()
{
return height;
}
public int getIconWidth()
{
return width;
}
public void paintIcon(Component c, Graphics g, int x, int y)
{
if (c.isEnabled())
{
g.setColor(c.getForeground());
}
else
{
g.setColor(Color.gray);
}
g.translate(x, y);
g.fillPolygon(xPoints, yPoints, xPoints.length);
g.translate(-x, -y); // Restore graphics object
}
}