/**
* Compute a contrasting background color to draw the label's outline.
*
* @param color Label color.
* @return A color that contrasts with {@code color}.
*/
protected Color computeBackgroundColor(Color color) {
float[] colorArray = new float[4];
Color.RGBtoHSB(color.getRed(), color.getGreen(), color.getBlue(), colorArray);
if (colorArray[2] > 0.5) return new Color(0, 0, 0, 0.7f);
else return new Color(1, 1, 1, 0.7f);
}
// Compute background color for best contrast
private Color getBackgroundColor(Color color) {
Color.RGBtoHSB(color.getRed(), color.getGreen(), color.getBlue(), compArray);
if (compArray[2] > 0.5) return new Color(0, 0, 0, 0.7f);
else return new Color(1, 1, 1, 0.7f);
}