[pulseview.git] / pv / view / logicsignal.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_LOGICSIGNAL_H
#define PULSEVIEW_PV_LOGICSIGNAL_H

#include "signal.h"

#include <boost/shared_ptr.hpp>

namespace pv {

namespace data {
class Logic;
}

namespace view {

class LogicSignal : public Signal
{
private:
	static const float Oversampling;

	static const QColor EdgeColour;
	static const QColor HighColour;
	static const QColor LowColour;

	static const QColor LogicSignalColours[10];

public:
	LogicSignal(QString name,
		boost::shared_ptr<pv::data::Logic> data,
		int probe_index);

	/**
	 * 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:

	void paint_caps(QPainter &p, QLineF *const lines,
		std::vector< std::pair<int64_t, bool> > &edges,
		bool level, double samples_per_pixel, double pixels_offset,
		float x_offset, float y_offset);

	/**
	 * When painting into the rectangle, calculate the y
	 * offset of the zero point.
	 **/
	int get_nominal_offset(const QRect &rect) const;

private:
	int _probe_index;
	boost::shared_ptr<pv::data::Logic> _data;
};

} // namespace view
} // namespace pv

#endif // PULSEVIEW_PV_LOGICSIGNAL_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_LOGICSIGNAL_H
	22	#define PULSEVIEW_PV_LOGICSIGNAL_H
	23
	24	#include "signal.h"
	25
	26	#include <boost/shared_ptr.hpp>
	27
	28	namespace pv {
	29
	30	namespace data {
	31	class Logic;
	32	}
	33
	34	namespace view {
	35
	36	class LogicSignal : public Signal
	37	{
	38	private:
	39	static const float Oversampling;
	40
	41	static const QColor EdgeColour;
	42	static const QColor HighColour;
	43	static const QColor LowColour;
	44
	45	static const QColor LogicSignalColours[10];
	46
	47	public:
	48	LogicSignal(QString name,
	49	boost::shared_ptr<pv::data::Logic> data,
	50	int probe_index);
	51
	52	/**
	53	* Paints the signal with a QPainter
	54	* @param p the QPainter to paint into.
	55	* @param rect the rectangular area to draw the trace into.
	56	* @param scale the scale in seconds per pixel.
	57	* @param offset the time to show at the left hand edge of
	58	* the view in seconds.
	59	**/
	60	void paint(QPainter &p, const QRect &rect, double scale, double offset);
	61
	62	private:
	63
	64	void paint_caps(QPainter &p, QLineF *const lines,
	65	std::vector< std::pair<int64_t, bool> > &edges,
	66	bool level, double samples_per_pixel, double pixels_offset,
	67	float x_offset, float y_offset);
	68
	69	/**
	70	* When painting into the rectangle, calculate the y
	71	* offset of the zero point.
	72	**/
	73	int get_nominal_offset(const QRect &rect) const;
	74
	75	private:
	76	int _probe_index;
	77	boost::shared_ptr<pv::data::Logic> _data;
	78	};
	79
	80	} // namespace view
	81	} // namespace pv
	82
	83	#endif // PULSEVIEW_PV_LOGICSIGNAL_H