[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.hpp"
#include "view.hpp"

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

#include <libsigrok/libsigrok.hpp>

using std::deque;
using std::max;
using std::make_pair;
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 int LogicSignal::SignalHeight = 30;
const int LogicSignal::SignalMargin = 10;

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::Session &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_;
}

std::pair<int, int> LogicSignal::v_extents() const
{
	return make_pair(-SignalHeight - SignalMargin, SignalMargin);
}

void LogicSignal::paint_back(QPainter &p, int left, int right)
{
	if (channel_->enabled())
		paint_axis(p, get_visual_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);
	assert(owner_);

	const int y = get_visual_y();

	const View *const view = owner_->view();
	assert(view);

	const double scale = view->scale();
	assert(scale > 0);

	const double offset = view->offset();

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

	const float high_offset = y - 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(*get_icon(":/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(*get_icon(":/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(*get_icon(":/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(*get_icon(":/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(*get_icon(":/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(*get_icon(":/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()));
}

const vector<int32_t> LogicSignal::get_trigger_types() const
{
	try {
		const Glib::VariantContainerBase gvar =
			device_->config_list(ConfigKey::TRIGGER_MATCH);
		return Glib::VariantBase::cast_dynamic<
			Glib::Variant<vector<int32_t>>>(gvar).get();
	} catch (Error e) {
		return vector<int32_t>();
	}
}

QAction* LogicSignal::action_from_trigger_type(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::trigger_type_from_action(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)
{
	Signal::populate_popup_form(parent, form);

	trigger_bar_ = new QToolBar(parent);
	init_trigger_actions(trigger_bar_);
	trigger_bar_->addAction(trigger_none_);
	trigger_none_->setChecked(!trigger_match_);

	const vector<int32_t> trig_types = get_trigger_types();
	for (auto type_id : trig_types) {
		const TriggerMatchType *const type =
			TriggerMatchType::get(type_id);
		QAction *const action = action_from_trigger_type(type);
		trigger_bar_->addAction(action);
		action->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);
}

const QIcon* LogicSignal::get_icon(const char *path)
{
	const QIcon *icon = icon_cache_.take(path);
	if (!icon) {
		icon = new QIcon(path);
		icon_cache_.insert(path, icon);
	}

	return icon;
}

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

	action_from_trigger_type(trigger_match_)->setChecked(false);

	action = (QAction *)sender();
	action->setChecked(true);
	trigger_match_ = trigger_type_from_action(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.hpp"
	32	#include "view.hpp"
	33
	34	#include <pv/sigsession.hpp>
	35	#include <pv/devicemanager.hpp>
	36	#include <pv/data/logic.hpp>
	37	#include <pv/data/logicsnapshot.hpp>
	38	#include <pv/view/view.hpp>
	39
	40	#include <libsigrok/libsigrok.hpp>
	41
	42	using std::deque;
	43	using std::max;
	44	using std::make_pair;
	45	using std::min;
	46	using std::pair;
	47	using std::shared_ptr;
	48	using std::vector;
	49
	50	using sigrok::Channel;
	51	using sigrok::ConfigKey;
	52	using sigrok::Device;
	53	using sigrok::Error;
	54	using sigrok::Trigger;
	55	using sigrok::TriggerStage;
	56	using sigrok::TriggerMatch;
	57	using sigrok::TriggerMatchType;
	58
	59	namespace pv {
	60	namespace view {
	61
	62	const int LogicSignal::SignalHeight = 30;
	63	const int LogicSignal::SignalMargin = 10;
	64
	65	const float LogicSignal::Oversampling = 2.0f;
	66
	67	const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
	68	const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
	69	const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
	70
	71	const QColor LogicSignal::SignalColours[10] = {
	72	QColor(0x16, 0x19, 0x1A), // Black
	73	QColor(0x8F, 0x52, 0x02), // Brown
	74	QColor(0xCC, 0x00, 0x00), // Red
	75	QColor(0xF5, 0x79, 0x00), // Orange
	76	QColor(0xED, 0xD4, 0x00), // Yellow
	77	QColor(0x73, 0xD2, 0x16), // Green
	78	QColor(0x34, 0x65, 0xA4), // Blue
	79	QColor(0x75, 0x50, 0x7B), // Violet
	80	QColor(0x88, 0x8A, 0x85), // Grey
	81	QColor(0xEE, 0xEE, 0xEC), // White
	82	};
	83
	84	LogicSignal::LogicSignal(
	85	pv::Session &session,
	86	shared_ptr<Device> device,
	87	shared_ptr<Channel> channel,
	88	shared_ptr<data::Logic> data) :
	89	Signal(session, channel),
	90	device_(device),
	91	data_(data),
	92	trigger_none_(NULL),
	93	trigger_rising_(NULL),
	94	trigger_high_(NULL),
	95	trigger_falling_(NULL),
	96	trigger_low_(NULL),
	97	trigger_change_(NULL)
	98	{
	99	shared_ptr<Trigger> trigger;
	100
	101	colour_ = SignalColours[channel->index() % countof(SignalColours)];
	102
	103	/* Populate this channel's trigger setting with whatever we
	104	* find in the current session trigger, if anything. */
	105	trigger_match_ = nullptr;
	106	if ((trigger = session_.session()->trigger()))
	107	for (auto stage : trigger->stages())
	108	for (auto match : stage->matches())
	109	if (match->channel() == channel_)
	110	trigger_match_ = match->type();
	111	}
	112
	113	LogicSignal::~LogicSignal()
	114	{
	115	}
	116
	117	shared_ptr<pv::data::SignalData> LogicSignal::data() const
	118	{
	119	return data_;
	120	}
	121
	122	shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
	123	{
	124	return data_;
	125	}
	126
	127	std::pair<int, int> LogicSignal::v_extents() const
	128	{
	129	return make_pair(-SignalHeight - SignalMargin, SignalMargin);
	130	}
	131
	132	void LogicSignal::paint_back(QPainter &p, int left, int right)
	133	{
	134	if (channel_->enabled())
	135	paint_axis(p, get_visual_y(), left, right);
	136	}
	137
	138	void LogicSignal::paint_mid(QPainter &p, int left, int right)
	139	{
	140	using pv::view::View;
	141
	142	QLineF *line;
	143
	144	vector< pair<int64_t, bool> > edges;
	145
	146	assert(channel_);
	147	assert(data_);
	148	assert(right >= left);
	149	assert(owner_);
	150
	151	const int y = get_visual_y();
	152
	153	const View *const view = owner_->view();
	154	assert(view);
	155
	156	const double scale = view->scale();
	157	assert(scale > 0);
	158
	159	const double offset = view->offset();
	160
	161	if (!channel_->enabled())
	162	return;
	163
	164	const float high_offset = y - SignalHeight + 0.5f;
	165	const float low_offset = y + 0.5f;
	166
	167	const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
	168	data_->get_snapshots();
	169	if (snapshots.empty())
	170	return;
	171
	172	const shared_ptr<pv::data::LogicSnapshot> &snapshot =
	173	snapshots.front();
	174
	175	double samplerate = data_->samplerate();
	176
	177	// Show sample rate as 1Hz when it is unknown
	178	if (samplerate == 0.0)
	179	samplerate = 1.0;
	180
	181	const double pixels_offset = offset / scale;
	182	const double start_time = data_->get_start_time();
	183	const int64_t last_sample = snapshot->get_sample_count() - 1;
	184	const double samples_per_pixel = samplerate * scale;
	185	const double start = samplerate * (offset - start_time);
	186	const double end = start + samples_per_pixel * (right - left);
	187
	188	snapshot->get_subsampled_edges(edges,
	189	min(max((int64_t)floor(start), (int64_t)0), last_sample),
	190	min(max((int64_t)ceil(end), (int64_t)0), last_sample),
	191	samples_per_pixel / Oversampling, channel_->index());
	192	assert(edges.size() >= 2);
	193
	194	// Paint the edges
	195	const unsigned int edge_count = edges.size() - 2;
	196	QLineF *const edge_lines = new QLineF[edge_count];
	197	line = edge_lines;
	198
	199	for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
	200	const float x = ((*i).first / samples_per_pixel -
	201	pixels_offset) + left;
	202	*line++ = QLineF(x, high_offset, x, low_offset);
	203	}
	204
	205	p.setPen(EdgeColour);
	206	p.drawLines(edge_lines, edge_count);
	207	delete[] edge_lines;
	208
	209	// Paint the caps
	210	const unsigned int max_cap_line_count = edges.size();
	211	QLineF *const cap_lines = new QLineF[max_cap_line_count];
	212
	213	p.setPen(HighColour);
	214	paint_caps(p, cap_lines, edges, true, samples_per_pixel,
	215	pixels_offset, left, high_offset);
	216	p.setPen(LowColour);
	217	paint_caps(p, cap_lines, edges, false, samples_per_pixel,
	218	pixels_offset, left, low_offset);
	219
	220	delete[] cap_lines;
	221	}
	222
	223	void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
	224	vector< pair<int64_t, bool> > &edges, bool level,
	225	double samples_per_pixel, double pixels_offset, float x_offset,
	226	float y_offset)
	227	{
	228	QLineF *line = lines;
	229
	230	for (auto i = edges.begin(); i != (edges.end() - 1); i++)
	231	if ((*i).second == level) {
	232	*line++ = QLineF(
	233	((*i).first / samples_per_pixel -
	234	pixels_offset) + x_offset, y_offset,
	235	((*(i+1)).first / samples_per_pixel -
	236	pixels_offset) + x_offset, y_offset);
	237	}
	238
	239	p.drawLines(lines, line - lines);
	240	}
	241
	242	void LogicSignal::init_trigger_actions(QWidget *parent)
	243	{
	244	trigger_none_ = new QAction(*get_icon(":/icons/trigger-none.svg"),
	245	tr("No trigger"), parent);
	246	trigger_none_->setCheckable(true);
	247	connect(trigger_none_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	248
	249	trigger_rising_ = new QAction(*get_icon(":/icons/trigger-rising.svg"),
	250	tr("Trigger on rising edge"), parent);
	251	trigger_rising_->setCheckable(true);
	252	connect(trigger_rising_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	253
	254	trigger_high_ = new QAction(*get_icon(":/icons/trigger-high.svg"),
	255	tr("Trigger on high level"), parent);
	256	trigger_high_->setCheckable(true);
	257	connect(trigger_high_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	258
	259	trigger_falling_ = new QAction(*get_icon(":/icons/trigger-falling.svg"),
	260	tr("Trigger on falling edge"), parent);
	261	trigger_falling_->setCheckable(true);
	262	connect(trigger_falling_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	263
	264	trigger_low_ = new QAction(*get_icon(":/icons/trigger-low.svg"),
	265	tr("Trigger on low level"), parent);
	266	trigger_low_->setCheckable(true);
	267	connect(trigger_low_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	268
	269	trigger_change_ = new QAction(*get_icon(":/icons/trigger-change.svg"),
	270	tr("Trigger on rising or falling edge"), parent);
	271	trigger_change_->setCheckable(true);
	272	connect(trigger_change_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	273	}
	274
	275	const vector<int32_t> LogicSignal::get_trigger_types() const
	276	{
	277	try {
	278	const Glib::VariantContainerBase gvar =
	279	device_->config_list(ConfigKey::TRIGGER_MATCH);
	280	return Glib::VariantBase::cast_dynamic<
	281	Glib::Variant<vector<int32_t>>>(gvar).get();
	282	} catch (Error e) {
	283	return vector<int32_t>();
	284	}
	285	}
	286
	287	QAction* LogicSignal::action_from_trigger_type(const TriggerMatchType *type)
	288	{
	289	QAction *action;
	290
	291	action = trigger_none_;
	292	if (type) {
	293	switch (type->id()) {
	294	case SR_TRIGGER_ZERO:
	295	action = trigger_low_;
	296	break;
	297	case SR_TRIGGER_ONE:
	298	action = trigger_high_;
	299	break;
	300	case SR_TRIGGER_RISING:
	301	action = trigger_rising_;
	302	break;
	303	case SR_TRIGGER_FALLING:
	304	action = trigger_falling_;
	305	break;
	306	case SR_TRIGGER_EDGE:
	307	action = trigger_change_;
	308	break;
	309	default:
	310	assert(0);
	311	}
	312	}
	313
	314	return action;
	315	}
	316
	317	const TriggerMatchType LogicSignal::trigger_type_from_action(QAction action)
	318	{
	319	if (action == trigger_low_)
	320	return TriggerMatchType::ZERO;
	321	else if (action == trigger_high_)
	322	return TriggerMatchType::ONE;
	323	else if (action == trigger_rising_)
	324	return TriggerMatchType::RISING;
	325	else if (action == trigger_falling_)
	326	return TriggerMatchType::FALLING;
	327	else if (action == trigger_change_)
	328	return TriggerMatchType::EDGE;
	329	else
	330	return nullptr;
	331	}
	332
	333	void LogicSignal::populate_popup_form(QWidget parent, QFormLayout form)
	334	{
	335	Signal::populate_popup_form(parent, form);
	336
	337	trigger_bar_ = new QToolBar(parent);
	338	init_trigger_actions(trigger_bar_);
	339	trigger_bar_->addAction(trigger_none_);
	340	trigger_none_->setChecked(!trigger_match_);
	341
	342	const vector<int32_t> trig_types = get_trigger_types();
	343	for (auto type_id : trig_types) {
	344	const TriggerMatchType *const type =
	345	TriggerMatchType::get(type_id);
	346	QAction *const action = action_from_trigger_type(type);
	347	trigger_bar_->addAction(action);
	348	action->setChecked(trigger_match_ == type);
	349	}
	350	form->addRow(tr("Trigger"), trigger_bar_);
	351
	352	}
	353
	354	void LogicSignal::modify_trigger()
	355	{
	356	auto trigger = session_.session()->trigger();
	357	auto new_trigger = session_.device_manager().context()->create_trigger("pulseview");
	358
	359	if (trigger) {
	360	for (auto stage : trigger->stages()) {
	361	const auto &matches = stage->matches();
	362	if (std::none_of(begin(matches), end(matches),
	363	[&](shared_ptr<TriggerMatch> match) {
	364	return match->channel() != channel_; }))
	365	continue;
	366
	367	auto new_stage = new_trigger->add_stage();
	368	for (auto match : stage->matches()) {
	369	if (match->channel() == channel_)
	370	continue;
	371	new_stage->add_match(match->channel(), match->type());
	372	}
	373	}
	374	}
	375
	376	if (trigger_match_)
	377	new_trigger->add_stage()->add_match(channel_, trigger_match_);
	378
	379	session_.session()->set_trigger(
	380	new_trigger->stages().empty() ? nullptr : new_trigger);
	381	}
	382
	383	const QIcon* LogicSignal::get_icon(const char *path)
	384	{
	385	const QIcon *icon = icon_cache_.take(path);
	386	if (!icon) {
	387	icon = new QIcon(path);
	388	icon_cache_.insert(path, icon);
	389	}
	390
	391	return icon;
	392	}
	393
	394	void LogicSignal::on_trigger()
	395	{
	396	QAction *action;
	397
	398	action_from_trigger_type(trigger_match_)->setChecked(false);
	399
	400	action = (QAction *)sender();
	401	action->setChecked(true);
	402	trigger_match_ = trigger_type_from_action(action);
	403
	404	modify_trigger();
	405	}
	406
	407	} // namespace view
	408	} // namespace pv