@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (drawOverlay) {
g = g.create();
AntialiasingManager.activateAntialiasing(g);
try {
// Paint a roll over fade out.
FadeTracker fadeTracker = FadeTracker.getInstance();
float visibility = 0.0f;
if (fadeTracker.isTracked(this, FadeKind.ROLLOVER)) {
visibility = fadeTracker.getFade(this, FadeKind.ROLLOVER);
visibility /= 4;
} else visibility = 0.5f;
// Draw black overlay
g.setColor(new Color(0.0f, 0.0f, 0.0f, visibility));
g.fillRoundRect(1, 1, width - 2, height - 2, 10, 10);
// Draw arrow
g.setColor(Color.WHITE);
int[] arrowX = new int[] {width - 17, width - 7, width - 12};
int[] arrowY = new int[] {height - 12, height - 12, height - 7};
g.fillPolygon(arrowX, arrowY, arrowX.length);
} finally {
g.dispose();
}
}
}
/**
* Paint a background for all groups and a round blue border and background when a cell is
* selected.
*
* @param g the <tt>Graphics</tt> object
*/
private void internalPaintComponent(Graphics g) {
AntialiasingManager.activateAntialiasing(g);
Graphics2D g2 = (Graphics2D) g;
if (isSelected) {
g2.setColor(selectedColor);
g2.fillRect(0, 0, this.getWidth(), this.getHeight());
}
}