@Override
protected void paintForeground(Graphics g, JComponent component) {
// paint icon (if there is any)
paintIcon(g, component);
Insets ins = getOutsideInsets();
int w = component.getWidth();
int h = component.getHeight();
// paint knob (if there is any)
// TODO colors
if (behavior.isShowKnob()) {
Insets insets = getInnerInsets();
if (getOrientation().isHorizontal()) {
int x = ins.left + insets.left - KNOB_SIZE + 3;
int y1 = ins.top + insets.top + 3;
int y2 = h - insets.bottom - ins.bottom - 4;
g.setColor(Color.WHITE);
g.drawLine(x, y1, x, y2);
g.drawLine(x, y1, x + 1, y1);
g.setColor(Color.DARK_GRAY);
g.drawLine(x, y2, x + 1, y2);
g.drawLine(x + 1, y1 + 1, x + 1, y2);
} else {
int y = ins.top + insets.top - KNOB_SIZE + 3;
int x1 = ins.left + insets.left + 3;
int x2 = w - insets.right - ins.right - 4;
g.setColor(Color.WHITE);
g.drawLine(x1, y, x2, y);
g.drawLine(x1, y, x1, y + 1);
g.setColor(Color.DARK_GRAY);
g.drawLine(x1 + 1, y + 1, x2, y + 1);
g.drawLine(x2, y, x2, y + 1);
}
}
}
