[pulseview.git] / pv / view / analogsignal.h

/*
 * 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 {

namespace data {
class Analog;
class AnalogSnapshot;
}

namespace view {

class AnalogSignal : public Signal
{
private:
	static const QColor SignalColours[4];

	static const float EnvelopeThreshold;

public:
	AnalogSignal(pv::SigSession &session, const sr_probe *const probe,
		boost::shared_ptr<pv::data::Analog> data);

	virtual ~AnalogSignal();

	const std::list<QAction*> get_context_bar_actions();

	void set_scale(float scale);

	/**
	 * Paints the signal with a QPainter
	 * @param p the QPainter to paint into.
	 * @param y the y-coordinate to draw the signal at.
	 * @param left the x-coordinate of the left edge of the signal.
	 * @param right the x-coordinate of the right edge of the signal.
	 * @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, int y, int left, int right, double scale,
		double offset);

private:
	void paint_trace(QPainter &p,
		const boost::shared_ptr<pv::data::AnalogSnapshot> &snapshot,
		int y, int left, const int64_t start, const int64_t end,
		const double pixels_offset, const double samples_per_pixel);

	void paint_envelope(QPainter &p,
		const boost::shared_ptr<pv::data::AnalogSnapshot> &snapshot,
		int y, int left, const int64_t start, const int64_t end,
		const double pixels_offset, const double samples_per_pixel);

private:
	boost::shared_ptr<pv::data::Analog> _data;
	float _scale;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_ANALOGSIGNAL_H
Commit	Line	Data
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#ifndef PULSEVIEW_PV_ANALOGSIGNAL_H
	22	#define PULSEVIEW_PV_ANALOGSIGNAL_H
	23
	24	#include "signal.h"
	25
	26	#include <boost/shared_ptr.hpp>
	27
	28	namespace pv {
	29
	30	namespace data {
	31	class Analog;
	32	class AnalogSnapshot;
	33	}
	34
	35	namespace view {
	36
	37	class AnalogSignal : public Signal
	38	{
	39	private:
	40	static const QColor SignalColours[4];
	41
	42	static const float EnvelopeThreshold;
	43
	44	public:
	45	AnalogSignal(pv::SigSession &session, const sr_probe *const probe,
	46	boost::shared_ptr<pv::data::Analog> data);
	47
	48	virtual ~AnalogSignal();
	49
	50	const std::list<QAction*> get_context_bar_actions();
	51
	52	void set_scale(float scale);
	53
	54	/**
	55	* Paints the signal with a QPainter
	56	* @param p the QPainter to paint into.
	57	* @param y the y-coordinate to draw the signal at.
	58	* @param left the x-coordinate of the left edge of the signal.
	59	* @param right the x-coordinate of the right edge of the signal.
	60	* @param scale the scale in seconds per pixel.
	61	* @param offset the time to show at the left hand edge of
	62	* the view in seconds.
	63	**/
	64	void paint(QPainter &p, int y, int left, int right, double scale,
	65	double offset);
	66
	67	private:
	68	void paint_trace(QPainter &p,
	69	const boost::shared_ptr<pv::data::AnalogSnapshot> &snapshot,
	70	int y, int left, const int64_t start, const int64_t end,
	71	const double pixels_offset, const double samples_per_pixel);
	72
	73	void paint_envelope(QPainter &p,
	74	const boost::shared_ptr<pv::data::AnalogSnapshot> &snapshot,
	75	int y, int left, const int64_t start, const int64_t end,
	76	const double pixels_offset, const double samples_per_pixel);
	77
	78	private:
	79	boost::shared_ptr<pv::data::Analog> _data;
	80	float _scale;
	81	};
	82
	83	} // namespace view
	84	} // namespace pv
	85
	86	#endif // PULSEVIEW_PV_ANALOGSIGNAL_H