Code
class ToggleButtonBarCellIcon implements Icon {
private static final Color TL = new Color(1f, 1f, 1f, .2f);
private static final Color BR = new Color(0f, 0f, 0f, .2f);
private static final Color ST = new Color(1f, 1f, 1f, .4f);
private static final Color SB = new Color(1f, 1f, 1f, .1f);
private Color ssc;
private Color bgc;
@Override public void paintIcon(Component c, Graphics g, int x, int y) {
int r = 8;
int w = c.getWidth();
int h = c.getHeight();
Container parent = c.getParent();
if (parent == null) {
return;
}
Graphics2D g2 = (Graphics2D) g.create();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
Path2D p = new Path2D.Float();
if (c == parent.getComponent(0)) {
// JButton.segmentPosition: first
// :first-child
p.moveTo(x, y + r);
p.quadTo(x, y, x + r, y);
p.lineTo(x + w, y);
p.lineTo(x + w, y + h);
p.lineTo(x + r, y + h);
p.quadTo(x, y + h, x, y + h - r);
} else if (c == parent.getComponent(parent.getComponentCount() - 1)) {
// JButton.segmentPosition: last
// :last-child
p.moveTo(x, y);
p.lineTo(x + w - r, y);
p.quadTo(x + w, y, x + w, y + r);
p.lineTo(x + w, y + h - r);
p.quadTo(x + w, y + h, x + w - r, y + h);
p.lineTo(x, y + h);
} else {
// JButton.segmentPosition: middle
p.moveTo(x, y);
p.lineTo(x + w, y);
p.lineTo(x + w, y + h);
p.lineTo(x, y + h);
}
p.closePath();
Area area = new Area(p);
g2.setPaint(c.getBackground());
g2.fill(area);
ssc = TL;
bgc = BR;
if (c instanceof AbstractButton) {
ButtonModel m = ((AbstractButton) c).getModel();
if (m.isSelected() || m.isRollover()) {
ssc = ST;
bgc = SB;
}
}
g2.setPaint(new GradientPaint(x, y, ssc, x, y + h, bgc, true));
g2.fill(area);
g2.setPaint(BR);
g2.draw(area);
g2.dispose();
}
@Override public int getIconWidth() {
return 80;
}
@Override public int getIconHeight() {
return 20;
}
}
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