diff options
Diffstat (limited to 'plugins/jetpack/modules/tiled-gallery/math/class-constrained-array-rounding.php')
-rw-r--r-- | plugins/jetpack/modules/tiled-gallery/math/class-constrained-array-rounding.php | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/plugins/jetpack/modules/tiled-gallery/math/class-constrained-array-rounding.php b/plugins/jetpack/modules/tiled-gallery/math/class-constrained-array-rounding.php deleted file mode 100644 index d01a114a..00000000 --- a/plugins/jetpack/modules/tiled-gallery/math/class-constrained-array-rounding.php +++ /dev/null @@ -1,77 +0,0 @@ -<?php - -/** - * Lets you round the numeric elements of an array to integers while preserving their sum. - * - * Usage: - * - * Jetpack_Constrained_Array_Rounding::get_rounded_constrained_array( $bound_array ) - * if a specific sum doesn't need to be specified for the bound array - * - * Jetpack_Constrained_Array_Rounding::get_rounded_constrained_array( $bound_array, $sum ) - * If the sum of $bound_array must equal $sum after rounding. - * - * If $sum is less than the sum of the floor of the elements of the array, the class defaults to using the sum of the array elements. - */ -class Jetpack_Constrained_Array_Rounding { - public static function get_rounded_constrained_array( $bound_array, $sum = false ) { - // Convert associative arrays before working with them and convert them back before returning the values - $keys = array_keys( $bound_array ); - $bound_array = array_values( $bound_array ); - - $bound_array_int = self::get_int_floor_array( $bound_array ); - - $lower_sum = array_sum( wp_list_pluck( $bound_array_int, 'floor' ) ); - if ( ! $sum || ( $sum < $lower_sum ) ) { - // If value of sum is not supplied or is invalid, calculate the sum that the returned array is constrained to match - $sum = array_sum( $bound_array ); - } - $diff_sum = $sum - $lower_sum; - - self::adjust_constrained_array( $bound_array_int, $diff_sum ); - - $bound_array_fin = wp_list_pluck( $bound_array_int, 'floor' ); - return array_combine( $keys, $bound_array_fin ); - } - - private static function get_int_floor_array( $bound_array ) { - $bound_array_int_floor = array(); - foreach ( $bound_array as $i => $value ) { - $bound_array_int_floor[ $i ] = array( - 'floor' => (int) floor( $value ), - 'fraction' => $value - floor( $value ), - 'index' => $i, - ); - } - - return $bound_array_int_floor; - } - - private static function adjust_constrained_array( &$bound_array_int, $adjustment ) { - usort( $bound_array_int, array( 'self', 'cmp_desc_fraction' ) ); - - $start = 0; - $end = $adjustment - 1; - $length = count( $bound_array_int ); - - for ( $i = $start; $i <= $end; $i++ ) { - $bound_array_int[ $i % $length ]['floor']++; - } - - usort( $bound_array_int, array( 'self', 'cmp_asc_index' ) ); - } - - private static function cmp_desc_fraction( $a, $b ) { - if ( $a['fraction'] == $b['fraction'] ) { - return 0; - } - return $a['fraction'] > $b['fraction'] ? -1 : 1; - } - - private static function cmp_asc_index( $a, $b ) { - if ( $a['index'] == $b['index'] ) { - return 0; - } - return $a['index'] < $b['index'] ? -1 : 1; - } -} |