X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/timetracker.git/blobdiff_plain/87a40bf7dc910c008aa6aadf8882b070ad120c39..d750614c66f49bf68fd660a67a7d3805578238fc:/WEB-INF/lib/ttTimeHelper.class.php

diff --git a/WEB-INF/lib/ttTimeHelper.class.php b/WEB-INF/lib/ttTimeHelper.class.php
index 3cef8b44..44d96785 100644
--- a/WEB-INF/lib/ttTimeHelper.class.php
+++ b/WEB-INF/lib/ttTimeHelper.class.php
@@ -173,7 +173,7 @@ class ttTimeHelper {
   // minutesToDuration converts an integer number of minutes into duration string.
   // Formats returned HH:MM, HHH:MM, HH, or HHH.
   static function minutesToDuration($minutes, $abbreviate = false) {
-    $sign = $minutes > 0 ? '' : '-';
+    $sign = $minutes >= 0 ? '' : '-';
     $minutes = abs($minutes);
 
     $hours = (string) (int)($minutes / 60);
@@ -188,8 +188,11 @@ class ttTimeHelper {
 
   // toMinutes - converts a time string in format 00:00 to a number of minutes.
   static function toMinutes($value) {
+    $signMultiplier = ttStartsWith($value, '-') ? -1 : 1;
+    if ($signMultiplier == -1) $duration = ltrim($duration, '-');
+
     $time_a = explode(':', $value);
-    return (int)@$time_a[1] + ((int)@$time_a[0]) * 60;
+    return $signMultiplier * ((int)@$time_a[1] + ((int)@$time_a[0]) * 60);
   }
 
   // toAbsDuration - converts a number of minutes to format 0:00