void setFocusedKnob() {
if (knobHandle.spacer != null) {
knobHandle.spacer.knobPainter.knobOff(true);
}
knobHandle.spacer = this;
knobPainter.knobOn(true);
}
public void mouseEntered(MouseEvent e) {
if (knobHandle.spacer != null) {
knobHandle.spacer.knobPainter.knobOff(false);
}
knobHandle.spacer = this;
knobPainter.knobOn(false);
}
protected void paintComponent(Graphics graphics) {
super.paintComponent(graphics);
Graphics2D g = (Graphics2D) graphics;
// If we are disabled, we don't draw our arrow, focus, and unstick
// decorations:
if (!isEnabled()) {
return;
}
Color oldColor = g.getColor();
RenderingHints oldHints = g.getRenderingHints();
g.setColor(Color.black);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
if (isStuck()) {
paintHorizontalLine(g);
}
g.setRenderingHints(oldHints);
g.setColor(oldColor);
knobPainter.paint(g);
}