+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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
+ */
+
+#ifndef PULSEVIEW_PV_ANALOGSIGNAL_H
+#define PULSEVIEW_PV_ANALOGSIGNAL_H
+
+#include "signal.h"
+
+#include <boost/shared_ptr.hpp>
+
+namespace pv {
+
+class AnalogData;
+
+namespace view {
+
+class AnalogSignal : public Signal
+{
+public:
+ AnalogSignal(QString name,
+ boost::shared_ptr<pv::AnalogData> data);
+
+ /**
+ * Paints the signal with a QPainter
+ * @param p the QPainter to paint into.
+ * @param rect the rectangular area to draw the trace into.
+ * @param scale the scale in seconds per pixel.
+ * @param offset the time to show at the left hand edge of
+ * the view in seconds.
+ **/
+ void paint(QPainter &p, const QRect &rect,
+ double scale, double offset);
+
+private:
+
+ /**
+ * When painting into the rectangle, calculate the y
+ * offset of the zero point.
+ **/
+ int get_nominal_offset(const QRect &rect) const;
+
+private:
+ boost::shared_ptr<pv::AnalogData> _data;
+};
+
+} // namespace view
+} // namespace pv
+
+#endif // PULSEVIEW_PV_ANALOGSIGNAL_H