/**
*
* Make an array of colors complete with styles. The colors are arranged by hue families.
*
* @param int slices The number of families. 6-15 is probably good.
* @param int trisize Proportional with the square root of the size of each family 4 to 6 is probably good.
* @return array an array with the values at 'options' and styles in 'styles'
*/
function makeColorArrays($slices, $triSize)
{
$options = array();
$styles = array();
$options[''] = "Default";
$styles[''] = "";
for ($dark = 0; $dark <= $triSize; $dark++) {
$goalDark = 255.99 * $dark / $triSize;
$arr = GUIComponentUtility::addColor($goalDark, $goalDark, $goalDark);
$val0 = $arr[0];
$val1 = $arr[1];
$options[$val0] = $val0;
$styles[$val0] = $val1;
}
for ($rot = 0; $rot < $slices; $rot++) {
$angle_R = $rot / $slices * 2 * M_PI + M_PI * 1 / 3;
$angle_G = $rot / $slices * 2 * M_PI + M_PI * 5 / 3;
$angle_B = $rot / $slices * 2 * M_PI + M_PI * 3 / 3;
$baseR = 128 + 127.99 * sin($angle_R);
$baseG = 128 + 127.99 * sin($angle_G);
$baseB = 128 + 127.99 * sin($angle_B);
for ($dark = $triSize; $dark > 0; $dark--) {
$baseDarknessR = $baseR * $dark / $triSize;
$baseDarknessG = $baseG * $dark / $triSize;
$baseDarknessB = $baseB * $dark / $triSize;
$goalDark = 255.99 * $dark / $triSize;
for ($gray = 0; $gray < $dark; $gray++) {
$actual_r = $baseDarknessR * ($dark - $gray) + $goalDark * $gray;
$actual_g = $baseDarknessG * ($dark - $gray) + $goalDark * $gray;
$actual_b = $baseDarknessB * ($dark - $gray) + $goalDark * $gray;
$actual_r /= $dark;
$actual_g /= $dark;
$actual_b /= $dark;
$arr = GUIComponentUtility::addColor($actual_r, $actual_g, $actual_b);
$val0 = $arr[0];
$val1 = $arr[1];
$options[$val0] = $val0;
$styles[$val0] = $val1;
}
}
}
//this hack takes care of the fact that I really want to return them both.
$ret = array();
$ret['options'] = $options;
$ret['styles'] = $styles;
return $ret;
}
