diff options
Diffstat (limited to 'app/ColorGenerator.php')
| -rw-r--r-- | app/ColorGenerator.php | 137 |
1 files changed, 70 insertions, 67 deletions
diff --git a/app/ColorGenerator.php b/app/ColorGenerator.php index e52521e7d2..673f6650c8 100644 --- a/app/ColorGenerator.php +++ b/app/ColorGenerator.php @@ -18,81 +18,84 @@ namespace Fisharebest\Webtrees; /** * Generate a range of colurs for the lifespan chart. */ -class ColorGenerator { - /** @var int Current hue */ - private $hue; +class ColorGenerator +{ + /** @var int Current hue */ + private $hue; - /** @var int Initial hue*/ - private $basehue; + /** @var int Initial hue */ + private $basehue; - /** @var int Saturation */ - private $saturation; + /** @var int Saturation */ + private $saturation; - /** @var int Lightness */ - private $lightness; + /** @var int Lightness */ + private $lightness; - /** @var int Initial lightness*/ - private $baselightness; + /** @var int Initial lightness */ + private $baselightness; - /** @var int Alpha transparancy */ - private $alpha; + /** @var int Alpha transparancy */ + private $alpha; - /** @var int Clockwise or anticlockwise color wheel */ - private $range; + /** @var int Clockwise or anticlockwise color wheel */ + private $range; - /** - * Create a color generator. - * - * @param int $hue (0Deg = Red, 120Deg = green, 240Deg = blue) - * @param int $saturation - * @param int $lightness - * @param int $alpha - * @param int $range (sign determines direction. positive = clockwise, negative = anticlockwise) - */ - public function __construct($hue, $saturation, $lightness, $alpha, $range) { - $this->hue = $hue; - $this->basehue = $hue; - $this->saturation = $saturation; - $this->lightness = $lightness; - $this->baselightness = $lightness; - $this->alpha = $alpha; - $this->range = $range; - } + /** + * Create a color generator. + * + * @param int $hue (0Deg = Red, 120Deg = green, 240Deg = blue) + * @param int $saturation + * @param int $lightness + * @param int $alpha + * @param int $range (sign determines direction. positive = clockwise, negative = anticlockwise) + */ + public function __construct($hue, $saturation, $lightness, $alpha, $range) + { + $this->hue = $hue; + $this->basehue = $hue; + $this->saturation = $saturation; + $this->lightness = $lightness; + $this->baselightness = $lightness; + $this->alpha = $alpha; + $this->range = $range; + } - /** - * Function getNextColor - * - * $lightness cycles between $baselightness and 100% in $lightnessStep steps - * $hue cycles on each complete $lightness cycle - * between $basehue and $basehue + $range degrees in $hueStep degrees - * - * @param int $lightnessStep - * @param int $hueStep - * - * @return string - */ - public function getNextColor($lightnessStep = 10, $hueStep = 15) { - $lightness = $this->lightness + $lightnessStep; - $hue = $this->hue; + /** + * Function getNextColor + * + * $lightness cycles between $baselightness and 100% in $lightnessStep steps + * $hue cycles on each complete $lightness cycle + * between $basehue and $basehue + $range degrees in $hueStep degrees + * + * @param int $lightnessStep + * @param int $hueStep + * + * @return string + */ + public function getNextColor($lightnessStep = 10, $hueStep = 15) + { + $lightness = $this->lightness + $lightnessStep; + $hue = $this->hue; - if ($lightness >= 100) { - $lightness = $this->baselightness; - if ($this->range > 0) { - $hue += $hueStep; - } else { - $hue -= $hueStep; - } - if (($hue - $this->basehue) * ($hue - ($this->basehue + $this->range)) >= 0) { - $hue = $this->basehue; - } - $this->hue = $hue; - } - $this->lightness = $lightness; + if ($lightness >= 100) { + $lightness = $this->baselightness; + if ($this->range > 0) { + $hue += $hueStep; + } else { + $hue -= $hueStep; + } + if (($hue - $this->basehue) * ($hue - ($this->basehue + $this->range)) >= 0) { + $hue = $this->basehue; + } + $this->hue = $hue; + } + $this->lightness = $lightness; - return sprintf('hsla(%s, %s%%, %s%%, %s)', - $this->hue, - $this->saturation, - $this->lightness, - $this->alpha); - } + return sprintf('hsla(%s, %s%%, %s%%, %s)', + $this->hue, + $this->saturation, + $this->lightness, + $this->alpha); + } } |