1 files changed, 149 insertions, 0 deletions
diff --git a/admin/survey/minify/vendor/tubalmartin/cssmin/src/Utils.php b/admin/survey/minify/vendor/tubalmartin/cssmin/src/Utils.php
new file mode 100644
index 0000000..d05f375
--- /dev/null
+++ b/admin/survey/minify/vendor/tubalmartin/cssmin/src/Utils.php
@@ -0,0 +1,149 @@
+<?php
+
+namespace tubalmartin\CssMin;
+
+class Utils
+{
+    /**
+     * Clamps a number between a minimum and a maximum value.
+     * @param int|float $n the number to clamp
+     * @param int|float $min the lower end number allowed
+     * @param int|float $max the higher end number allowed
+     * @return int|float
+     */
+    public static function clampNumber($n, $min, $max)
+    {
+        return min(max($n, $min), $max);
+    }
+
+    /**
+     * Clamps a RGB color number outside the sRGB color space
+     * @param int|float $n the number to clamp
+     * @return int|float
+     */
+    public static function clampNumberSrgb($n)
+    {
+        return self::clampNumber($n, 0, 255);
+    }
+
+    /**
+     * Converts a HSL color into a RGB color
+     * @param array $hslValues
+     * @return array
+     */
+    public static function hslToRgb($hslValues)
+    {
+        $h = floatval($hslValues[0]);
+        $s = floatval(str_replace('%', '', $hslValues[1]));
+        $l = floatval(str_replace('%', '', $hslValues[2]));
+
+        // Wrap and clamp, then fraction!
+        $h = ((($h % 360) + 360) % 360) / 360;
+        $s = self::clampNumber($s, 0, 100) / 100;
+        $l = self::clampNumber($l, 0, 100) / 100;
+
+        if ($s == 0) {
+            $r = $g = $b = self::roundNumber(255 * $l);
+        } else {
+            $v2 = $l < 0.5 ? $l * (1 + $s) : ($l + $s) - ($s * $l);
+            $v1 = (2 * $l) - $v2;
+            $r = self::roundNumber(255 * self::hueToRgb($v1, $v2, $h + (1/3)));
+            $g = self::roundNumber(255 * self::hueToRgb($v1, $v2, $h));
+            $b = self::roundNumber(255 * self::hueToRgb($v1, $v2, $h - (1/3)));
+        }
+
+        return array($r, $g, $b);
+    }
+
+    /**
+     * Tests and selects the correct formula for each RGB color channel
+     * @param $v1
+     * @param $v2
+     * @param $vh
+     * @return mixed
+     */
+    public static function hueToRgb($v1, $v2, $vh)
+    {
+        $vh = $vh < 0 ? $vh + 1 : ($vh > 1 ? $vh - 1 : $vh);
+
+        if ($vh * 6 < 1) {
+            return $v1 + ($v2 - $v1) * 6 * $vh;
+        }
+
+        if ($vh * 2 < 1) {
+            return $v2;
+        }
+
+        if ($vh * 3 < 2) {
+            return $v1 + ($v2 - $v1) * ((2 / 3) - $vh) * 6;
+        }
+
+        return $v1;
+    }
+
+    /**
+     * Convert strings like "64M" or "30" to int values
+     * @param mixed $size
+     * @return int
+     */
+    public static function normalizeInt($size)
+    {
+        if (is_string($size)) {
+            $letter = substr($size, -1);
+            $size = intval($size);
+            switch ($letter) {
+                case 'M':
+                case 'm':
+                    return (int) $size * 1048576;
+                case 'K':
+                case 'k':
+                    return (int) $size * 1024;
+                case 'G':
+                case 'g':
+                    return (int) $size * 1073741824;
+            }
+        }
+        return (int) $size;
+    }
+
+    /**
+     * Converts a string containing and RGB percentage value into a RGB integer value i.e. '90%' -> 229.5
+     * @param $rgbPercentage
+     * @return int
+     */
+    public static function rgbPercentageToRgbInteger($rgbPercentage)
+    {
+        if (strpos($rgbPercentage, '%') !== false) {
+            $rgbPercentage = self::roundNumber(floatval(str_replace('%', '', $rgbPercentage)) * 2.55);
+        }
+
+        return intval($rgbPercentage, 10);
+    }
+
+    /**
+     * Converts a RGB color into a HEX color
+     * @param array $rgbColors
+     * @return array
+     */
+    public static function rgbToHex($rgbColors)
+    {
+        $hexColors = array();
+
+        // Values outside the sRGB color space should be clipped (0-255)
+        for ($i = 0, $l = count($rgbColors); $i < $l; $i++) {
+            $hexColors[$i] = sprintf("%02x", self::clampNumberSrgb(self::rgbPercentageToRgbInteger($rgbColors[$i])));
+        }
+
+        return $hexColors;
+    }
+
+    /**
+     * Rounds a number to its closest integer
+     * @param $n
+     * @return int
+     */
+    public static function roundNumber($n)
+    {
+        return intval(round(floatval($n)), 10);
+    }
+}