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Code Issues Releases Wiki Activity

Fix ChatUtil::gradient() for same colors

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Tim Düsterhus 2013-05-21 22:45:28 +02:00
parent 7863578141
commit 1cf7ad6f74
1 changed files with 6 additions and 6 deletions
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12
file/lib/util/ChatUtil.class.php
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@ -76,19 +76,19 @@ public static function /* int */ getRandomNumber() {
* @return string * @return string
*/ */
public static function gradient($string, $start, $end) { public static function gradient($string, $start, $end) {
$string = self::str_split($string); if (($length = \wcf\util\StringUtil::length($string)) === 0) return '';
if (count($string) === 0) return '';
if ($start === $end) { if ($start === $end) {
return '<span style="color:rgb('.($start >> 16 & 255).','.($start >> 8 & 255).','.($start & 255).')">'.\wcf\util\StringUtil::encodeHTML($string).'</span>'; return '<span style="color:rgb('.($start >> 16 & 255).','.($start >> 8 & 255).','.($start & 255).')">'.\wcf\util\StringUtil::encodeHTML($string).'</span>';
} }
$r = (int) ((($start >> 16 & 255) - ($end >> 16 & 255)) / (count($string) - 1)); $r = (int) ((($start >> 16 & 255) - ($end >> 16 & 255)) / ($length - 1));
$g = (int) ((($start >> 8 & 255) - ($end >> 8 & 255)) / (count($string) - 1)); $g = (int) ((($start >> 8 & 255) - ($end >> 8 & 255)) / ($length - 1));
$b = (int) ((($start & 255) - ($end & 255)) / (count($string) - 1)); $b = (int) ((($start & 255) - ($end & 255)) / ($length - 1));
$result = ''; $result = '';
for ($i = 0, $max = count($string); $i < $max; $i++) { $string = self::str_split($string);
for ($i = 0; $i < $length; $i++) {
$result .= '<span style="color:rgb('.(($start >> 16 & 255) - $i * $r).','.(($start >> 8 & 255) - $i * $g).','.(($start & 255) - $i * $b).')">'.\wcf\util\StringUtil::encodeHTML($string[$i]).'</span>'; $result .= '<span style="color:rgb('.(($start >> 16 & 255) - $i * $r).','.(($start >> 8 & 255) - $i * $g).','.(($start & 255) - $i * $b).')">'.\wcf\util\StringUtil::encodeHTML($string[$i]).'</span>';
} }