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<?php |
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/** |
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* Functions that can be used in the Customify config for filtering values. |
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* |
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* Think modifying colors, etc. |
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*/ |
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|
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/** |
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* Adjust a hex color brightness |
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* Allows us to create hover styles for custom link colors |
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* |
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* Taken from the Storefront theme by Automattic: https://github.com/woocommerce/storefront |
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* |
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* @param string $hex hex color e.g. #111111. |
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* @param integer $steps factor by which to brighten/darken ranging from -255 (darken) to 255 (brighten). |
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* @return string brightened/darkened hex color |
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*/ |
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function pixcloud_adjust_color_brightness( $hex, $steps ) { |
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// Steps should be between -255 and 255. Negative = darker, positive = lighter. |
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$steps = max( -255, min( 255, $steps ) ); |
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|
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// Format the hex color string. |
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$hex = str_replace( '#', '', $hex ); |
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|
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if ( 3 == strlen( $hex ) ) { |
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$hex = str_repeat( substr( $hex, 0, 1 ), 2 ) . str_repeat( substr( $hex, 1, 1 ), 2 ) . str_repeat( substr( $hex, 2, 1 ), 2 ); |
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} |
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|
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// Get decimal values. |
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$r = hexdec( substr( $hex, 0, 2 ) ); |
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$g = hexdec( substr( $hex, 2, 2 ) ); |
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$b = hexdec( substr( $hex, 4, 2 ) ); |
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|
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// Adjust number of steps and keep it inside 0 to 255. |
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$r = max( 0, min( 255, $r + $steps ) ); |
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$g = max( 0, min( 255, $g + $steps ) ); |
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$b = max( 0, min( 255, $b + $steps ) ); |
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|
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$r_hex = str_pad( dechex( $r ), 2, '0', STR_PAD_LEFT ); |
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$g_hex = str_pad( dechex( $g ), 2, '0', STR_PAD_LEFT ); |
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$b_hex = str_pad( dechex( $b ), 2, '0', STR_PAD_LEFT ); |
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|
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return '#' . $r_hex . $g_hex . $b_hex; |
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} |
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|
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/** |
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* Negate the value. |
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* |
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* @param int|float $value |
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* @return int|float |
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*/ |
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function pixcloud_negate( $value ) { |
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if ( ! is_numeric( $value ) ) { |
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return $value; |
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} |
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|
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return - $value; |
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} |
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|
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/** |
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* Ensure that value is at least the $min value. |
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* |
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* @param int|float $value |
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* @param int|float $min |
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* @return int|float |
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*/ |
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function pixcloud_min( $value, $min ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $min ) ) { |
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return $value; |
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} |
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|
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if ( $value < $min ) { |
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return $min; |
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} |
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|
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return $value; |
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} |
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|
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/** |
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* Ensure that value is at most the $max value. |
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* |
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* @param int|float $value |
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* @param int|float $max |
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* @return int|float |
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*/ |
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function pixcloud_max( $value, $max ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $max ) ) { |
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return $value; |
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} |
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|
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if ( $value > $max ) { |
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return $max; |
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} |
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|
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return $value; |
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} |
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|
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/** |
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* Ensure that value is between $min and $max. |
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* |
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* @param int|float $value |
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* @param int|float $min |
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* @param int|float $max |
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* @return int|float |
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*/ |
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function pixcloud_min_max( $value, $min, $max ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $min ) || ! is_numeric( $max ) ) { |
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return $value; |
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} |
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|
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if ( $value < $min ) { |
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$value = $min; |
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} |
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|
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if ( $value > $max ) { |
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$value = $max; |
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} |
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|
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return $value; |
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} |
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|
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/** |
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* Add something to the value. |
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* |
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* @param int|float $value |
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* @param int|float $add |
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* @return int|float |
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*/ |
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function pixcloud_add( $value, $add ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $add ) ) { |
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return $value; |
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} |
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|
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return $value + $add; |
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} |
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|
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/** |
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* Substract something from the value. |
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* |
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* @param int|float $value |
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* @param int|float $substract |
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* @return int|float |
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*/ |
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function pixcloud_substract( $value, $substract ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $substract ) ) { |
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return $value; |
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} |
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|
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return $value - $substract; |
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} |
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|
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/** |
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* Multiply the value. |
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* |
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* @param int|float $value |
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* @param int|float $multiply |
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* @return int|float |
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*/ |
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function pixcloud_multiply( $value, $multiply ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $multiply ) ) { |
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return $value; |
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} |
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|
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return $value * $multiply; |
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} |
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|
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/** |
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* Divide the value. |
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* |
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* @param int|float $value |
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* @param int|float $divide |
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* @return int|float |
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*/ |
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function pixcloud_divide( $value, $divide ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $divide ) || empty( $divide ) ) { |
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return $value; |
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} |
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|
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return $value / $divide; |
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} |
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|
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/** |
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* Divide the value and get the remainder. |
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* |
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* @param int|float $value |
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* @param int|float $divide |
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* @return int|float |
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*/ |
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function pixcloud_modulo( $value, $divide ) { |
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if ( ! is_numeric( $value ) || ! is_numeric( $divide ) || empty( $divide ) ) { |
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return $value; |
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} |
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|
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return $value % $divide; |
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} |
