Image2Css\Converter::computeStyle PHP Method

    public function computeStyle()
    {
        $this->load($this->getPath());
        $this->resize($this->getWidth());
        $nb = $this->getImageWidth() * $this->getImageHeight();
        $step = $this->getPixelSize();
        $pixels = $this->getColorMap();
        $style = "    width:0;\n";
        $style .= "    height:0;\n";
        $style .= "    box-shadow:\n";
        foreach ($pixels as $row => $cols) {
            foreach ($cols as $col => $colors) {
                $alpha = round($colors["alpha"] / -127 + 1, 1);
                if ($alpha) {
                    $style .= '   ';
                    $style .= sprintf("%4s", $col * $step) . "px ";
                    $style .= sprintf("%2s", $row * $step) . "px ";
                    $style .= $this->getBlur() ? $this->getBlur() . "px " : "0 ";
                    $style .= $step . "px ";
                    if ($this->color_type === \Image2Css\Converter::RGBA || $this->color_type === \Image2Css\Converter::BEST && $alpha < 1) {
                        $style .= "rgba(" . $colors["red"] . "," . $colors["green"] . "," . $colors["blue"] . "," . $alpha . ")";
                    } else {
                        $style .= strtoupper('#' . $this->rgb2hexa($colors['red']) . $this->rgb2hexa($colors['green']) . $this->rgb2hexa($colors['blue']));
                    }
                    $style .= ",\n";
                }
            }
        }
        return preg_replace('/,$/', ';', $style);
    }