diff -r 373813316812 -r 419de2dea82b QTfrontend/ui/widget/SDTimeoutSpinBox.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/QTfrontend/ui/widget/SDTimeoutSpinBox.h	Sun Sep 30 01:41:12 2018 +0200
@@ -0,0 +1,65 @@
+/*
+ * Hedgewars, a free turn based strategy game
+ * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/**
+ * @file
+ * @brief SDTimeoutSpinBox class definition
+ */
+
+#ifndef HEDGEWARS_SDTIMEOUTSPINBOX_H
+#define HEDGEWARS_SDTIMEOUTSPINBOX_H
+
+#include <QObject>
+#include <QSpinBox>
+
+/**
+ * <code>SpinBox</code> for Sudden Death timeout.
+ * The internally stored Sudden Death timeout is different
+ * from the actual number of rounds it takes until SD starts.
+ * e.g. value 0 means SD starts in 2nd round
+ * @author Wuzzy
+ * @since  0.9.25
+ */
+class SDTimeoutSpinBox : public QSpinBox
+{
+        Q_OBJECT
+
+    public:
+        /**
+         * @brief Class constructor.
+         * @param parent parent widget.
+         */
+        SDTimeoutSpinBox(QWidget * parent);
+
+    protected:
+        /**
+         * Returns its value in real number of rounds.
+         * @param internal value integer value to be represented as string.
+         * @return the real number of rounds
+         */
+        QString textFromValue(int value) const;
+        /**
+         * Returns the internally-used value for SD timeout.
+         * @param user-facing string, i.e. real number of rounds
+         * @return internally-stored SD timeout value
+         */
+        int valueFromText(const QString & text) const;
+};
+
+
+#endif // HEDGEWARS_SDTIMEOUTSPINBOX_H