コード例 #1
0
  protected java.awt.Color modulateColorOpacity(java.awt.Color color, double opacity) {
    float[] compArray = new float[4];
    color.getRGBComponents(compArray);
    compArray[3] *= (float) opacity;

    return new java.awt.Color(compArray[0], compArray[1], compArray[2], compArray[3]);
  }