74 lines
2.0 KiB
PHP
74 lines
2.0 KiB
PHP
<?php
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// $Header: /cvsroot/html2ps/utils_array.php,v 1.7 2006/09/07 18:38:16 Konstantin Exp $
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function any_flag_set(&$flags) {
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for ($i=0, $size = count($flags); $i<$size; $i++) {
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if ($flags[$i]) { return true; };
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}
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return false;
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}
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function expand_to_with_flags($size, $array, $flags) {
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// if array have no elements - return immediately
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if (count($array) == 0) { return $array; };
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// Never decrease exising values
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if (array_sum($array) > $size) {
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return $array;
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}
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// Subtract non-modifiable values from target value
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for ($i=0; $i < count($array); $i++) {
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if (!$flags[$i]) { $size -= $array[$i]; };
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};
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// Check if there's any expandable columns
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$sum = 0;
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for ($i=0, $count = count($flags); $i<$count; $i++) {
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if ($flags[$i]) { $sum += $array[$i]; };
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}
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if ($sum == 0) {
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// Note that this function is used in colpans-width calculation routine
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// If we executing this branch, then we've got a colspan over non-resizable columns
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// So, we decide to expand the very first column; note that 'Size' in this case
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// will contain the delta value for the width and we need to _add_ it to the first
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// column's width
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$array[0] += $size;
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return $array;
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}
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// Calculate scale koeff
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$koeff = $size / $sum;
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// Apply scale koeff
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for ($i=0, $count = count($flags); $i < $count; $i++) {
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if ($flags[$i]) { $array[$i] *= $koeff; };
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}
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return $array;
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}
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function expand_to($size, $array) {
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// if array have no elements - return immediately
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if (count($array) == 0) { return $array; };
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// If array contains only zero elements (or no elements at all) do not do anything
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if (array_sum($array) == 0) { return $array; };
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// Never decrease exising values
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if (array_sum($array) > $size) {
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return $array;
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}
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// Calculate scale koeff
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$koeff = $size / array_sum($array);
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// Apply scale koeff
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for ($i=0, $size = count($array); $i<$size; $i++) {
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$array[$i] *= $koeff;
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}
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return $array;
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}
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?>
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