[pulseview.git] / pv / view / logicsignal.cpp

/*
 * 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
 */

#include <extdef.h>

#include <cassert>
#include <cmath>

#include <algorithm>

#include <QFormLayout>
#include <QToolBar>

#include "logicsignal.h"
#include "view.h"

#include <pv/sigsession.h>
#include <pv/devicemanager.h>
#include <pv/data/logic.h>
#include <pv/data/logicsnapshot.h>
#include <pv/view/view.h>

#include <libsigrok/libsigrok.hpp>

using std::deque;
using std::max;
using std::min;
using std::pair;
using std::shared_ptr;
using std::vector;

using sigrok::Channel;
using sigrok::ConfigKey;
using sigrok::Device;
using sigrok::Error;
using sigrok::Trigger;
using sigrok::TriggerStage;
using sigrok::TriggerMatch;
using sigrok::TriggerMatchType;

namespace pv {
namespace view {

const float LogicSignal::Oversampling = 2.0f;

const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);

const QColor LogicSignal::SignalColours[10] = {
	QColor(0x16, 0x19, 0x1A),	// Black
	QColor(0x8F, 0x52, 0x02),	// Brown
	QColor(0xCC, 0x00, 0x00),	// Red
	QColor(0xF5, 0x79, 0x00),	// Orange
	QColor(0xED, 0xD4, 0x00),	// Yellow
	QColor(0x73, 0xD2, 0x16),	// Green
	QColor(0x34, 0x65, 0xA4),	// Blue
	QColor(0x75, 0x50, 0x7B),	// Violet
	QColor(0x88, 0x8A, 0x85),	// Grey
	QColor(0xEE, 0xEE, 0xEC),	// White
};

LogicSignal::LogicSignal(
	pv::SigSession &session,
	shared_ptr<Device> device,
	shared_ptr<Channel> channel,
	shared_ptr<data::Logic> data) :
	Signal(session, channel),
	_device(device),
	_data(data),
	_trigger_none(NULL),
	_trigger_rising(NULL),
	_trigger_high(NULL),
	_trigger_falling(NULL),
	_trigger_low(NULL),
	_trigger_change(NULL)
{
	shared_ptr<Trigger> trigger;

	_colour = SignalColours[channel->index() % countof(SignalColours)];

	/* Populate this channel's trigger setting with whatever we
	 * find in the current session trigger, if anything. */
	_trigger_match = nullptr;
	if ((trigger = _session.session()->trigger()))
		for (auto stage : trigger->stages())
			for (auto match : stage->matches())
				if (match->channel() == _channel)
					_trigger_match = match->type();
}

LogicSignal::~LogicSignal()
{
}

shared_ptr<pv::data::SignalData> LogicSignal::data() const
{
	return _data;
}

shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
{
	return _data;
}

void LogicSignal::paint_back(QPainter &p, int left, int right)
{
	if (_channel->enabled())
		paint_axis(p, get_y(), left, right);
}

void LogicSignal::paint_mid(QPainter &p, int left, int right)
{
	using pv::view::View;

	QLineF *line;

	vector< pair<int64_t, bool> > edges;

	assert(_channel);
	assert(_data);
	assert(right >= left);

	const int y = get_y();
	
	const double scale = _view->scale();
	assert(scale > 0);

	const double offset = _view->offset();

	if (!_channel->enabled())
		return;

	const float high_offset = y - View::SignalHeight + 0.5f;
	const float low_offset = y + 0.5f;

	const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
		_data->get_snapshots();
	if (snapshots.empty())
		return;

	const shared_ptr<pv::data::LogicSnapshot> &snapshot =
		snapshots.front();

	double samplerate = _data->samplerate();

	// Show sample rate as 1Hz when it is unknown
	if (samplerate == 0.0)
		samplerate = 1.0;

	const double pixels_offset = offset / scale;
	const double start_time = _data->get_start_time();
	const int64_t last_sample = snapshot->get_sample_count() - 1;
	const double samples_per_pixel = samplerate * scale;
	const double start = samplerate * (offset - start_time);
	const double end = start + samples_per_pixel * (right - left);

	snapshot->get_subsampled_edges(edges,
		min(max((int64_t)floor(start), (int64_t)0), last_sample),
		min(max((int64_t)ceil(end), (int64_t)0), last_sample),
		samples_per_pixel / Oversampling, _channel->index());
	assert(edges.size() >= 2);

	// Paint the edges
	const unsigned int edge_count = edges.size() - 2;
	QLineF *const edge_lines = new QLineF[edge_count];
	line = edge_lines;

	for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
		const float x = ((*i).first / samples_per_pixel -
			pixels_offset) + left;
		*line++ = QLineF(x, high_offset, x, low_offset);
	}

	p.setPen(EdgeColour);
	p.drawLines(edge_lines, edge_count);
	delete[] edge_lines;

	// Paint the caps
	const unsigned int max_cap_line_count = edges.size();
	QLineF *const cap_lines = new QLineF[max_cap_line_count];

	p.setPen(HighColour);
	paint_caps(p, cap_lines, edges, true, samples_per_pixel,
		pixels_offset, left, high_offset);
	p.setPen(LowColour);
	paint_caps(p, cap_lines, edges, false, samples_per_pixel,
		pixels_offset, left, low_offset);

	delete[] cap_lines;
}

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

	for (auto i = edges.begin(); i != (edges.end() - 1); i++)
		if ((*i).second == level) {
			*line++ = QLineF(
				((*i).first / samples_per_pixel -
					pixels_offset) + x_offset, y_offset,
				((*(i+1)).first / samples_per_pixel -
					pixels_offset) + x_offset, y_offset);
		}

	p.drawLines(lines, line - lines);
}

void LogicSignal::init_trigger_actions(QWidget *parent)
{
	_trigger_none = new QAction(QIcon(":/icons/trigger-none.svg"),
		tr("No trigger"), parent);
	_trigger_none->setCheckable(true);
	connect(_trigger_none, SIGNAL(triggered()), this, SLOT(on_trigger()));

	_trigger_rising = new QAction(QIcon(":/icons/trigger-rising.svg"),
		tr("Trigger on rising edge"), parent);
	_trigger_rising->setCheckable(true);
	connect(_trigger_rising, SIGNAL(triggered()), this, SLOT(on_trigger()));

	_trigger_high = new QAction(QIcon(":/icons/trigger-high.svg"),
		tr("Trigger on high level"), parent);
	_trigger_high->setCheckable(true);
	connect(_trigger_high, SIGNAL(triggered()), this, SLOT(on_trigger()));

	_trigger_falling = new QAction(QIcon(":/icons/trigger-falling.svg"),
		tr("Trigger on falling edge"), parent);
	_trigger_falling->setCheckable(true);
	connect(_trigger_falling, SIGNAL(triggered()), this, SLOT(on_trigger()));

	_trigger_low = new QAction(QIcon(":/icons/trigger-low.svg"),
		tr("Trigger on low level"), parent);
	_trigger_low->setCheckable(true);
	connect(_trigger_low, SIGNAL(triggered()), this, SLOT(on_trigger()));

	_trigger_change = new QAction(QIcon(":/icons/trigger-change.svg"),
		tr("Trigger on rising or falling edge"), parent);
	_trigger_change->setCheckable(true);
	connect(_trigger_change, SIGNAL(triggered()), this, SLOT(on_trigger()));
}

QAction* LogicSignal::match_action(const TriggerMatchType *type)
{
	QAction *action;

	action = _trigger_none;
	if (type) {
		switch (type->id()) {
		case SR_TRIGGER_ZERO:
			action = _trigger_low;
			break;
		case SR_TRIGGER_ONE:
			action = _trigger_high;
			break;
		case SR_TRIGGER_RISING:
			action = _trigger_rising;
			break;
		case SR_TRIGGER_FALLING:
			action = _trigger_falling;
			break;
		case SR_TRIGGER_EDGE:
			action = _trigger_change;
			break;
		default:
			assert(0);
		}
	}

	return action;
}

const TriggerMatchType *LogicSignal::action_match(QAction *action)
{
	if (action == _trigger_low)
		return TriggerMatchType::ZERO;
	else if (action == _trigger_high)
		return TriggerMatchType::ONE;
	else if (action == _trigger_rising)
		return TriggerMatchType::RISING;
	else if (action == _trigger_falling)
		return TriggerMatchType::FALLING;
	else if (action == _trigger_change)
		return TriggerMatchType::EDGE;
	else
		return nullptr;
}

void LogicSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
{
	Glib::VariantContainerBase gvar;
	vector<int32_t> trig_types;

	Signal::populate_popup_form(parent, form);

	try {
		gvar = _device->config_list(ConfigKey::TRIGGER_MATCH);
	} catch (Error e) {
		return;
	}

	_trigger_bar = new QToolBar(parent);
	init_trigger_actions(_trigger_bar);
	_trigger_bar->addAction(_trigger_none);
	_trigger_none->setChecked(!_trigger_match);
	trig_types =
		Glib::VariantBase::cast_dynamic<Glib::Variant<vector<int32_t>>>(
			gvar).get();
	for (auto type_id : trig_types) {
		auto type = TriggerMatchType::get(type_id);
		_trigger_bar->addAction(match_action(type));
		match_action(type)->setChecked(_trigger_match == type);
	}
	form->addRow(tr("Trigger"), _trigger_bar);

}

void LogicSignal::modify_trigger()
{
	auto trigger = _session.session()->trigger();
	auto new_trigger = _session.device_manager().context()->create_trigger("pulseview");

	if (trigger) {
		for (auto stage : trigger->stages()) {
			const auto &matches = stage->matches();
			if (std::none_of(begin(matches), end(matches),
			    [&](shared_ptr<TriggerMatch> match) {
					return match->channel() != _channel; }))
				continue;

			auto new_stage = new_trigger->add_stage();
			for (auto match : stage->matches()) {
				if (match->channel() == _channel)
					continue;
				new_stage->add_match(match->channel(), match->type());
			}
		}
	}

	if (_trigger_match)
		new_trigger->add_stage()->add_match(_channel, _trigger_match);

	_session.session()->set_trigger(
		new_trigger->stages().empty() ? nullptr : new_trigger);
}

void LogicSignal::on_trigger()
{
	QAction *action;

	match_action(_trigger_match)->setChecked(false);

	action = (QAction *)sender();
	action->setChecked(true);
	_trigger_match = action_match(action);

	modify_trigger();
}

} // namespace view
} // namespace pv
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	#include <extdef.h>
	22
	23	#include <cassert>
	24	#include <cmath>
	25
	26	#include <algorithm>
	27
	28	#include <QFormLayout>
	29	#include <QToolBar>
	30
	31	#include "logicsignal.h"
	32	#include "view.h"
	33
	34	#include <pv/sigsession.h>
	35	#include <pv/devicemanager.h>
	36	#include <pv/data/logic.h>
	37	#include <pv/data/logicsnapshot.h>
	38	#include <pv/view/view.h>
	39
	40	#include <libsigrok/libsigrok.hpp>
	41
	42	using std::deque;
	43	using std::max;
	44	using std::min;
	45	using std::pair;
	46	using std::shared_ptr;
	47	using std::vector;
	48
	49	using sigrok::Channel;
	50	using sigrok::ConfigKey;
	51	using sigrok::Device;
	52	using sigrok::Error;
	53	using sigrok::Trigger;
	54	using sigrok::TriggerStage;
	55	using sigrok::TriggerMatch;
	56	using sigrok::TriggerMatchType;
	57
	58	namespace pv {
	59	namespace view {
	60
	61	const float LogicSignal::Oversampling = 2.0f;
	62
	63	const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
	64	const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
	65	const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
	66
	67	const QColor LogicSignal::SignalColours[10] = {
	68	QColor(0x16, 0x19, 0x1A), // Black
	69	QColor(0x8F, 0x52, 0x02), // Brown
	70	QColor(0xCC, 0x00, 0x00), // Red
	71	QColor(0xF5, 0x79, 0x00), // Orange
	72	QColor(0xED, 0xD4, 0x00), // Yellow
	73	QColor(0x73, 0xD2, 0x16), // Green
	74	QColor(0x34, 0x65, 0xA4), // Blue
	75	QColor(0x75, 0x50, 0x7B), // Violet
	76	QColor(0x88, 0x8A, 0x85), // Grey
	77	QColor(0xEE, 0xEE, 0xEC), // White
	78	};
	79
	80	LogicSignal::LogicSignal(
	81	pv::SigSession &session,
	82	shared_ptr<Device> device,
	83	shared_ptr<Channel> channel,
	84	shared_ptr<data::Logic> data) :
	85	Signal(session, channel),
	86	_device(device),
	87	_data(data),
	88	_trigger_none(NULL),
	89	_trigger_rising(NULL),
	90	_trigger_high(NULL),
	91	_trigger_falling(NULL),
	92	_trigger_low(NULL),
	93	_trigger_change(NULL)
	94	{
	95	shared_ptr<Trigger> trigger;
	96
	97	_colour = SignalColours[channel->index() % countof(SignalColours)];
	98
	99	/* Populate this channel's trigger setting with whatever we
	100	* find in the current session trigger, if anything. */
	101	_trigger_match = nullptr;
	102	if ((trigger = _session.session()->trigger()))
	103	for (auto stage : trigger->stages())
	104	for (auto match : stage->matches())
	105	if (match->channel() == _channel)
	106	_trigger_match = match->type();
	107	}
	108
	109	LogicSignal::~LogicSignal()
	110	{
	111	}
	112
	113	shared_ptr<pv::data::SignalData> LogicSignal::data() const
	114	{
	115	return _data;
	116	}
	117
	118	shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
	119	{
	120	return _data;
	121	}
	122
	123	void LogicSignal::paint_back(QPainter &p, int left, int right)
	124	{
	125	if (_channel->enabled())
	126	paint_axis(p, get_y(), left, right);
	127	}
	128
	129	void LogicSignal::paint_mid(QPainter &p, int left, int right)
	130	{
	131	using pv::view::View;
	132
	133	QLineF *line;
	134
	135	vector< pair<int64_t, bool> > edges;
	136
	137	assert(_channel);
	138	assert(_data);
	139	assert(right >= left);
	140
	141	const int y = get_y();
	142
	143	const double scale = _view->scale();
	144	assert(scale > 0);
	145
	146	const double offset = _view->offset();
	147
	148	if (!_channel->enabled())
	149	return;
	150
	151	const float high_offset = y - View::SignalHeight + 0.5f;
	152	const float low_offset = y + 0.5f;
	153
	154	const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
	155	_data->get_snapshots();
	156	if (snapshots.empty())
	157	return;
	158
	159	const shared_ptr<pv::data::LogicSnapshot> &snapshot =
	160	snapshots.front();
	161
	162	double samplerate = _data->samplerate();
	163
	164	// Show sample rate as 1Hz when it is unknown
	165	if (samplerate == 0.0)
	166	samplerate = 1.0;
	167
	168	const double pixels_offset = offset / scale;
	169	const double start_time = _data->get_start_time();
	170	const int64_t last_sample = snapshot->get_sample_count() - 1;
	171	const double samples_per_pixel = samplerate * scale;
	172	const double start = samplerate * (offset - start_time);
	173	const double end = start + samples_per_pixel * (right - left);
	174
	175	snapshot->get_subsampled_edges(edges,
	176	min(max((int64_t)floor(start), (int64_t)0), last_sample),
	177	min(max((int64_t)ceil(end), (int64_t)0), last_sample),
	178	samples_per_pixel / Oversampling, _channel->index());
	179	assert(edges.size() >= 2);
	180
	181	// Paint the edges
	182	const unsigned int edge_count = edges.size() - 2;
	183	QLineF *const edge_lines = new QLineF[edge_count];
	184	line = edge_lines;
	185
	186	for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
	187	const float x = ((*i).first / samples_per_pixel -
	188	pixels_offset) + left;
	189	*line++ = QLineF(x, high_offset, x, low_offset);
	190	}
	191
	192	p.setPen(EdgeColour);
	193	p.drawLines(edge_lines, edge_count);
	194	delete[] edge_lines;
	195
	196	// Paint the caps
	197	const unsigned int max_cap_line_count = edges.size();
	198	QLineF *const cap_lines = new QLineF[max_cap_line_count];
	199
	200	p.setPen(HighColour);
	201	paint_caps(p, cap_lines, edges, true, samples_per_pixel,
	202	pixels_offset, left, high_offset);
	203	p.setPen(LowColour);
	204	paint_caps(p, cap_lines, edges, false, samples_per_pixel,
	205	pixels_offset, left, low_offset);
	206
	207	delete[] cap_lines;
	208	}
	209
	210	void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
	211	vector< pair<int64_t, bool> > &edges, bool level,
	212	double samples_per_pixel, double pixels_offset, float x_offset,
	213	float y_offset)
	214	{
	215	QLineF *line = lines;
	216
	217	for (auto i = edges.begin(); i != (edges.end() - 1); i++)
	218	if ((*i).second == level) {
	219	*line++ = QLineF(
	220	((*i).first / samples_per_pixel -
	221	pixels_offset) + x_offset, y_offset,
	222	((*(i+1)).first / samples_per_pixel -
	223	pixels_offset) + x_offset, y_offset);
	224	}
	225
	226	p.drawLines(lines, line - lines);
	227	}
	228
	229	void LogicSignal::init_trigger_actions(QWidget *parent)
	230	{
	231	_trigger_none = new QAction(QIcon(":/icons/trigger-none.svg"),
	232	tr("No trigger"), parent);
	233	_trigger_none->setCheckable(true);
	234	connect(_trigger_none, SIGNAL(triggered()), this, SLOT(on_trigger()));
	235
	236	_trigger_rising = new QAction(QIcon(":/icons/trigger-rising.svg"),
	237	tr("Trigger on rising edge"), parent);
	238	_trigger_rising->setCheckable(true);
	239	connect(_trigger_rising, SIGNAL(triggered()), this, SLOT(on_trigger()));
	240
	241	_trigger_high = new QAction(QIcon(":/icons/trigger-high.svg"),
	242	tr("Trigger on high level"), parent);
	243	_trigger_high->setCheckable(true);
	244	connect(_trigger_high, SIGNAL(triggered()), this, SLOT(on_trigger()));
	245
	246	_trigger_falling = new QAction(QIcon(":/icons/trigger-falling.svg"),
	247	tr("Trigger on falling edge"), parent);
	248	_trigger_falling->setCheckable(true);
	249	connect(_trigger_falling, SIGNAL(triggered()), this, SLOT(on_trigger()));
	250
	251	_trigger_low = new QAction(QIcon(":/icons/trigger-low.svg"),
	252	tr("Trigger on low level"), parent);
	253	_trigger_low->setCheckable(true);
	254	connect(_trigger_low, SIGNAL(triggered()), this, SLOT(on_trigger()));
	255
	256	_trigger_change = new QAction(QIcon(":/icons/trigger-change.svg"),
	257	tr("Trigger on rising or falling edge"), parent);
	258	_trigger_change->setCheckable(true);
	259	connect(_trigger_change, SIGNAL(triggered()), this, SLOT(on_trigger()));
	260	}
	261
	262	QAction* LogicSignal::match_action(const TriggerMatchType *type)
	263	{
	264	QAction *action;
	265
	266	action = _trigger_none;
	267	if (type) {
	268	switch (type->id()) {
	269	case SR_TRIGGER_ZERO:
	270	action = _trigger_low;
	271	break;
	272	case SR_TRIGGER_ONE:
	273	action = _trigger_high;
	274	break;
	275	case SR_TRIGGER_RISING:
	276	action = _trigger_rising;
	277	break;
	278	case SR_TRIGGER_FALLING:
	279	action = _trigger_falling;
	280	break;
	281	case SR_TRIGGER_EDGE:
	282	action = _trigger_change;
	283	break;
	284	default:
	285	assert(0);
	286	}
	287	}
	288
	289	return action;
	290	}
	291
	292	const TriggerMatchType LogicSignal::action_match(QAction action)
	293	{
	294	if (action == _trigger_low)
	295	return TriggerMatchType::ZERO;
	296	else if (action == _trigger_high)
	297	return TriggerMatchType::ONE;
	298	else if (action == _trigger_rising)
	299	return TriggerMatchType::RISING;
	300	else if (action == _trigger_falling)
	301	return TriggerMatchType::FALLING;
	302	else if (action == _trigger_change)
	303	return TriggerMatchType::EDGE;
	304	else
	305	return nullptr;
	306	}
	307
	308	void LogicSignal::populate_popup_form(QWidget parent, QFormLayout form)
	309	{
	310	Glib::VariantContainerBase gvar;
	311	vector<int32_t> trig_types;
	312
	313	Signal::populate_popup_form(parent, form);
	314
	315	try {
	316	gvar = _device->config_list(ConfigKey::TRIGGER_MATCH);
	317	} catch (Error e) {
	318	return;
	319	}
	320
	321	_trigger_bar = new QToolBar(parent);
	322	init_trigger_actions(_trigger_bar);
	323	_trigger_bar->addAction(_trigger_none);
	324	_trigger_none->setChecked(!_trigger_match);
	325	trig_types =
	326	Glib::VariantBase::cast_dynamic<Glib::Variant<vector<int32_t>>>(
	327	gvar).get();
	328	for (auto type_id : trig_types) {
	329	auto type = TriggerMatchType::get(type_id);
	330	_trigger_bar->addAction(match_action(type));
	331	match_action(type)->setChecked(_trigger_match == type);
	332	}
	333	form->addRow(tr("Trigger"), _trigger_bar);
	334
	335	}
	336
	337	void LogicSignal::modify_trigger()
	338	{
	339	auto trigger = _session.session()->trigger();
	340	auto new_trigger = _session.device_manager().context()->create_trigger("pulseview");
	341
	342	if (trigger) {
	343	for (auto stage : trigger->stages()) {
	344	const auto &matches = stage->matches();
	345	if (std::none_of(begin(matches), end(matches),
	346	[&](shared_ptr<TriggerMatch> match) {
	347	return match->channel() != _channel; }))
	348	continue;
	349
	350	auto new_stage = new_trigger->add_stage();
	351	for (auto match : stage->matches()) {
	352	if (match->channel() == _channel)
	353	continue;
	354	new_stage->add_match(match->channel(), match->type());
	355	}
	356	}
	357	}
	358
	359	if (_trigger_match)
	360	new_trigger->add_stage()->add_match(_channel, _trigger_match);
	361
	362	_session.session()->set_trigger(
	363	new_trigger->stages().empty() ? nullptr : new_trigger);
	364	}
	365
	366	void LogicSignal::on_trigger()
	367	{
	368	QAction *action;
	369
	370	match_action(_trigger_match)->setChecked(false);
	371
	372	action = (QAction *)sender();
	373	action->setChecked(true);
	374	_trigger_match = action_match(action);
	375
	376	modify_trigger();
	377	}
	378
	379	} // namespace view
	380	} // namespace pv