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home/lmsyaran/public_html/modules/mod_vertical_menu/helpers/color.php��0000644��00000035546�15116737336�0022312 0��ustar�00��<?php /** * mod_vertical_menu - Vertical Menu * * @author Balint Polgarfi * @copyright 2014-2019 Offlajn.com * @license https://gnu.org/licenses/gpl-2.0.html * @link https://offlajn.com / ?><?php // no direct access defined('_JEXEC') or die('Restricted access'); if(!class_exists('OfflajnColorHelper')){ class OfflajnColorHelper { /* * * Converts hexadecimal colors to RGB. * * @param string $hex Hexadecimal value. Accepts values with 3 or 6 numbers, * with or without #, e.g., CCC, #CCC, CCCCCC or #CCCCCC. * * @return array RGB values: 0 => R, 1 => G, 2 => B * / public function hex2rgb($hex) { // Remove #. if (strpos($hex, '#') === 0) { $hex = substr($hex, 1); } if (strlen($hex) == 3) { $hex .= $hex; } if (strlen($hex) != 6) { return false; } // Convert each tuple to decimal. $r = hexdec(substr($hex, 0, 2)); $g = hexdec(substr($hex, 2, 2)); $b = hexdec(substr($hex, 4, 2)); return array($r, $g, $b); } public function hex2rgba($hex) { // Remove #. if (strpos($hex, '#') === 0) { $hex = substr($hex, 1); } if (strlen($hex) == 6) { $hex.='ff'; } if (strlen($hex) != 8) { return false; } // Convert each tuple to decimal. $r = hexdec(substr($hex, 0, 2)); $g = hexdec(substr($hex, 2, 2)); $b = hexdec(substr($hex, 4, 2)); $a = intval(hexdec(substr($hex, 6, 2))/2); return array($r, $g, $b, $a); } public function hex82hex($hex) { // Remove #. if (strpos($hex, '#') === 0) { $hex = substr($hex, 1); } if (strlen($hex) == 6) { $hex.='ff'; } if (strlen($hex) != 8) { return false; } return array(substr($hex, 0, 6), substr($hex, 6, 2)); } /* * * Converts hexadecimal colors to HSV. * * @param string $hex Hexadecimal value. Accepts values with 3 or 6 numbers, * with or without #, e.g., CCC, #CCC, CCCCCC or #CCCCCC. * * @return array HSV values: 0 => H, 1 => S, 2 => V * / public function hex2hsv($hex) { return $this->rgb2hsv($this->hex2rgb($hex)); } /* * * Converts hexadecimal colors to HSL. * * @param string $hex Hexadecimal value. Accepts values with 3 or 6 numbers, * with or without #, e.g., CCC, #CCC, CCCCCC or #CCCCCC. * * @return array HSL values: 0 => H, 1 => S, 2 => L * / public function hex2hsl($hex) { return $this->rgb2hsl($this->hex2rgb($hex)); } /* * * Converts RGB colors to hexadecimal. * * @param array $rgb RGB values: 0 => R, 1 => G, 2 => B * * @return string Hexadecimal value with six digits, e.g., CCCCCC. * / public function rgb2hex($rgb) { if(count($rgb) < 3) { return false; } list($r, $g, $b) = $rgb; // From php.net. $r = 0x10000 max(0, min(255, $r)); $g = 0x100 * max(0, min(255, $g)); $b = max(0, min(255, $b)); return strtoupper(str_pad(dechex($r + $g + $b), 6, 0, STR_PAD_LEFT)); } /** * * Converts RGB to HSV. * * @param array $rgb RGB values: 0 => R, 1 => G, 2 => B * * @return array HSV values: 0 => H, 1 => S, 2 => V * / public function rgb2hsv($rgb) { // RGB values = 0 ?ˇ 255 $var_R = ($rgb[0] / 255); $var_G = ($rgb[1] / 255); $var_B = ($rgb[2] / 255); // Min. value of RGB $var_Min = min($var_R, $var_G, $var_B); // Max. value of RGB $var_Max = max($var_R, $var_G, $var_B); // Delta RGB value $del_Max = $var_Max - $var_Min; $V = $var_Max; // This is a gray, no chroma... if ( $del_Max == 0 ) { // HSV results = 0 ?ˇ 1 $H = 0; $S = 0; } else { // Chromatic data... $S = $del_Max / $var_Max; $del_R = ((($var_Max - $var_R) / 6) + ($del_Max / 2)) / $del_Max; $del_G = ((($var_Max - $var_G) / 6) + ($del_Max / 2)) / $del_Max; $del_B = ((($var_Max - $var_B) / 6) + ($del_Max / 2)) / $del_Max; if ($var_R == $var_Max) { $H = $del_B - $del_G; } else if ($var_G == $var_Max) { $H = (1 / 3) + $del_R - $del_B; } else if ($var_B == $var_Max) { $H = (2 / 3) + $del_G - $del_R; } if ($H < 0) { $H += 1; } if ($H > 1) { $H -= 1; } } // Returns agnostic values. // Range will depend on the application: e.g. $H360, $S100, $V100. return array($H, $S, $V); } /** * * Converts RGB to HSL. * * @param array $rgb RGB values: 0 => R, 1 => G, 2 => B * * @return array HSL values: 0 => H, 1 => S, 2 => L * / public function rgb2hsl($rgb) { // Where RGB values = 0 ?ˇ 255. $var_R = $rgb[0] / 255; $var_G = $rgb[1] / 255; $var_B = $rgb[2] / 255; // Min. value of RGB $var_Min = min($var_R, $var_G, $var_B); // Max. value of RGB $var_Max = max($var_R, $var_G, $var_B); // Delta RGB value $del_Max = $var_Max - $var_Min; $L = ($var_Max + $var_Min) / 2; if ( $del_Max == 0 ) { // This is a gray, no chroma... // HSL results = 0 ?ˇ 1 $H = 0; $S = 0; } else { // Chromatic data... if ($L < 0.5) { $S = $del_Max / ($var_Max + $var_Min); } else { $S = $del_Max / ( 2 - $var_Max - $var_Min ); } $del_R = ((($var_Max - $var_R) / 6) + ($del_Max / 2)) / $del_Max; $del_G = ((($var_Max - $var_G) / 6) + ($del_Max / 2)) / $del_Max; $del_B = ((($var_Max - $var_B) / 6) + ($del_Max / 2)) / $del_Max; if ($var_R == $var_Max) { $H = $del_B - $del_G; } else if ($var_G == $var_Max) { $H = ( 1 / 3 ) + $del_R - $del_B; } else if ($var_B == $var_Max) { $H = ( 2 / 3 ) + $del_G - $del_R; } if ($H < 0) { $H += 1; } if ($H > 1) { $H -= 1; } } return array($H, $S, $L); } /* * * Converts HSV colors to hexadecimal. * * @param array $hsv HSV values: 0 => H, 1 => S, 2 => V * * @return string Hexadecimal value with six digits, e.g., CCCCCC. * / public function hsv2hex($hsv) { return $this->rgb2hex($this->hsv2rgb($hsv)); } /* * * Converts HSV to RGB. * * @param array $hsv HSV values: 0 => H, 1 => S, 2 => V * * @return array RGB values: 0 => R, 1 => G, 2 => B * / public function hsv2rgb($hsv) { $H = $hsv[0]; $S = $hsv[1]; $V = $hsv[2]; // HSV values = 0 ?ˇ 1 if ($S == 0) { $R = $V 255; $G = $V * 255; $B = $V * 255; } else { $var_h = $H * 6; // H must be < 1 if ( $var_h == 6 ) { $var_h = 0; } // Or ... $var_i = floor( $var_h ) $var_i = floor( $var_h ); $var_1 = $V * ( 1 - $S ); $var_2 = $V * ( 1 - $S * ( $var_h - $var_i ) ); $var_3 = $V * ( 1 - $S * ( 1 - ( $var_h - $var_i ) ) ); switch($var_i) { case 0: $var_r = $V; $var_g = $var_3; $var_b = $var_1; break; case 1: $var_r = $var_2; $var_g = $V; $var_b = $var_1; break; case 2: $var_r = $var_1; $var_g = $V; $var_b = $var_3; break; case 3: $var_r = $var_1; $var_g = $var_2; $var_b = $V; break; case 4: $var_r = $var_3; $var_g = $var_1; $var_b = $V; break; default: $var_r = $V; $var_g = $var_1; $var_b = $var_2; } //RGB results = 0 ?ˇ 255 $R = $var_r * 255; $G = $var_g * 255; $B = $var_b * 255; } return array($R, $G, $B); } /** * * Converts HSV colors to HSL. * * @param array $hsv HSV values: 0 => H, 1 => S, 2 => V * * @return array HSL values: 0 => H, 1 => S, 2 => L * / public function hsv2hsl($hsv) { return $this->rgb2hsl($this->hsv2rgb($hsv)); } /* * * Converts hexadecimal colors to HSL. * * @param array $hsl HSL values: 0 => H, 1 => S, 2 => L * * @return string Hexadecimal value. Accepts values with 3 or 6 numbers, * with or without #, e.g., CCC, #CCC, CCCCCC or #CCCCCC. * / public function hsl2hex($hsl) { return $this->rgb2hex($this->hsl2rgb($hsl)); } /* * * Converts HSL to RGB. * * @param array $hsv HSL values: 0 => H, 1 => S, 2 => L * * @return array RGB values: 0 => R, 1 => G, 2 => B * / public function hsl2rgb($hsl) { list($H, $S, $L) = $hsl; if ($S == 0) { // HSL values = 0 ?ˇ 1 // RGB results = 0 ?ˇ 255 $R = $L 255; $G = $L * 255; $B = $L * 255; } else { if ($L < 0.5) { $var_2 = $L * (1 + $S); } else { $var_2 = ($L + $S) - ($S * $L); } $var_1 = 2 * $L - $var_2; $R = 255 * $this->_hue2rgb($var_1, $var_2, $H + (1 / 3)); $G = 255 * $this->_hue2rgb($var_1, $var_2, $H); $B = 255 * $this->_hue2rgb($var_1, $var_2, $H - (1 / 3)); } return array($R, $G, $B); } /** * * Support method for hsl2rgb(): converts hue ro RGB. * * @param * * @param * * @param * * @return int * / protected function _hue2rgb($v1, $v2, $vH) { if ($vH < 0) { $vH += 1; } if ($vH > 1) { $vH -= 1; } if ((6 $vH) < 1) { return ($v1 + ($v2 - $v1) * 6 * $vH); } if ((2 * $vH) < 1) { return $v2; } if ((3 * $vH) < 2) { return ($v1 + ($v2 - $v1) * (( 2 / 3) - $vH) * 6); } return $v1; } /** * * Converts hexadecimal colors to HSL. * * @param array $hsl HSL values: 0 => H, 1 => S, 2 => L * * @return array HSV values: 0 => H, 1 => S, 2 => V * / public function hsl2hsv($hsl) { return $this->rgb2hsv($this->hsl2rgb($hsl)); } /* * * Updates HSV values. * * @param array $hsv HSV values: 0 => H, 1 => S, 2 => V * * @param array $values Values to update: 0 => value to add to H (0 to 360), * 1 and 2 => values to multiply S and V (0 to 100). Example: * * {{{code:php * // Update saturation to 80% in the provided HSV. * $hsv = array(120, 0.75, 0.75); * $new_hsv = $color->updateHsv($hsv, array(null, 80, null)); * }}} * / public function updateHsv($hsv, $values) { if (isset($values[0])) { $hsv[0] = max(0, min(360, ($hsv[0] + $values[0]))); } if (isset($values[1])) { $hsv[1] = max(0, min(1, ($hsv[1] ($values[1] / 100)))); } if (isset($values[2])) { $hsv[2] = max(0, min(1, ($hsv[2] * ($values[2] / 100)))); } return $hsv; } /** * * Updates HSL values. * * @param array $hsl HSL values: 0 => H, 1 => S, 2 => L * * @param array $values Values to update: 0 => value to add to H (0 to 360), * 1 and 2 => values to multiply S and V (0 to 100). Example: * * {{{code:php * // Update saturation to 80% in the provided HSL. * $hsl = array(120, 0.75, 0.75); * $new_hsl = $color->updateHsl($hsl, array(null, 80, null)); * }}} * / public function updateHsl($hsl, $values) { if (isset($values[0])) { $hsl[0] = max(0, min(1, ($hsl[0] + $values[0]/360))); } if (isset($values[1])) { $hsl[1] = max(0, min(1, ($hsl[1] ($values[1] / 100)))); } if (isset($values[2])) { $hsl[2] = max(0, min(1, ($hsl[2] * ($values[2] / 100)))); } return $hsl; } function rgb2array($rgb) { return array( base_convert(substr($rgb, 0, 2), 16, 10), base_convert(substr($rgb, 2, 2), 16, 10), base_convert(substr($rgb, 4, 2), 16, 10), ); } } } ?>��

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