1 files changed, 17 insertions, 0 deletions
diff --git a/helper.h b/helper.h
index a93406a..23ac261 100644
--- a/helper.h
+++ b/helper.h
@@ -12,6 +12,7 @@
 #include <QStringList>
 #include <QVariant>
 #include <QList>
+#include <QMetaType>
 
 #include <magic.h>
 
@@ -32,7 +33,23 @@ namespace Helper {
 	const QString colorToHtml(const QColor &color);
 	void centerWidget(QWidget *widget);
     QList<QVariant> duration(const QString &path);
+    class Duration {
+        public:
+            Duration();
+            Duration(const QString &dur);
+            Duration operator+(const Duration &dur) const;
+            const QString toString() const;
+            bool isNull() const;
+
+        private:
+            int mHours;
+            int mMinutes;
+            int mSeconds;
+    };
 }
 
+
+Q_DECLARE_METATYPE(Helper::Duration)
+
 #endif