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

/*
 * 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_VIEW_ANALOGSIGNAL_HPP
#define PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP

#include "signal.hpp"

#include <memory>

namespace pv {

namespace data {
class Analog;
class AnalogSegment;
}

namespace view {

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

	static const float EnvelopeThreshold;

public:
	AnalogSignal(pv::Session &session,
		std::shared_ptr<sigrok::Channel> channel,
		std::shared_ptr<pv::data::Analog> data);

	virtual ~AnalogSignal();

	std::shared_ptr<pv::data::SignalData> data() const;

	std::shared_ptr<pv::data::Analog> analog_data() const;

	/**
	 * Computes the vertical extents of the contents of this row item.
	 * @return A pair containing the minimum and maximum y-values.
	 */
	std::pair<int, int> v_extents() const;

	/**
	 * Paints the background layer of the signal with a QPainter
	 * @param p the QPainter to paint into.
	 * @param pp the painting parameters object to paint with..
	 **/
	void paint_back(QPainter &p, const ViewItemPaintParams &pp);

	/**
	 * Paints the mid-layer of the signal with a QPainter
	 * @param p the QPainter to paint into.
	 * @param pp the painting parameters object to paint with..
	 **/
	void paint_mid(QPainter &p, const ViewItemPaintParams &pp);

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

private:
	std::shared_ptr<pv::data::Analog> data_;
	float scale_;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP
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_VIEW_ANALOGSIGNAL_HPP
	22	#define PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP
	23
	24	#include "signal.hpp"
	25
	26	#include <memory>
	27
	28	namespace pv {
	29
	30	namespace data {
	31	class Analog;
	32	class AnalogSegment;
	33	}
	34
	35	namespace view {
	36
	37	class AnalogSignal : public Signal
	38	{
	39	private:
	40	static const int NominalHeight;
	41	static const QColor SignalColours[4];
	42
	43	static const float EnvelopeThreshold;
	44
	45	public:
	46	AnalogSignal(pv::Session &session,
	47	std::shared_ptr<sigrok::Channel> channel,
	48	std::shared_ptr<pv::data::Analog> data);
	49
	50	virtual ~AnalogSignal();
	51
	52	std::shared_ptr<pv::data::SignalData> data() const;
	53
	54	std::shared_ptr<pv::data::Analog> analog_data() const;
	55
	56	/**
	57	* Computes the vertical extents of the contents of this row item.
	58	* @return A pair containing the minimum and maximum y-values.
	59	*/
	60	std::pair<int, int> v_extents() const;
	61
	62	/**
	63	* Paints the background layer of the signal with a QPainter
	64	* @param p the QPainter to paint into.
	65	* @param pp the painting parameters object to paint with..
	66	**/
	67	void paint_back(QPainter &p, const ViewItemPaintParams &pp);
	68
	69	/**
	70	* Paints the mid-layer of the signal with a QPainter
	71	* @param p the QPainter to paint into.
	72	* @param pp the painting parameters object to paint with..
	73	**/
	74	void paint_mid(QPainter &p, const ViewItemPaintParams &pp);
	75
	76	private:
	77	void paint_trace(QPainter &p,
	78	const std::shared_ptr<pv::data::AnalogSegment> &segment,
	79	int y, int left, const int64_t start, const int64_t end,
	80	const double pixels_offset, const double samples_per_pixel);
	81
	82	void paint_envelope(QPainter &p,
	83	const std::shared_ptr<pv::data::AnalogSegment> &segment,
	84	int y, int left, const int64_t start, const int64_t end,
	85	const double pixels_offset, const double samples_per_pixel);
	86
	87	private:
	88	std::shared_ptr<pv::data::Analog> data_;
	89	float scale_;
	90	};
	91
	92	} // namespace view
	93	} // namespace pv
	94
	95	#endif // PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP