[pulseview.git] / pv / views / trace / 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, see <http://www.gnu.org/licenses/>.
 */

#include <extdef.h>

#include <cassert>
#include <cmath>

#include <algorithm>

#include <QApplication>
#include <QFormLayout>
#include <QToolBar>

#include "logicsignal.hpp"
#include "view.hpp"

#include <pv/data/logic.hpp>
#include <pv/data/logicsegment.hpp>
#include <pv/data/signalbase.hpp>
#include <pv/devicemanager.hpp>
#include <pv/devices/device.hpp>
#include <pv/globalsettings.hpp>
#include <pv/session.hpp>

#include <libsigrokcxx/libsigrokcxx.hpp>

using std::deque;
using std::max;
using std::make_pair;
using std::min;
using std::none_of;
using std::out_of_range;
using std::pair;
using std::shared_ptr;
using std::vector;

using sigrok::ConfigKey;
using sigrok::Capability;
using sigrok::Trigger;
using sigrok::TriggerMatch;
using sigrok::TriggerMatchType;

namespace pv {
namespace views {
namespace trace {

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::SamplingPointColour(0x77, 0x77, 0x77);

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
};

QColor LogicSignal::TriggerMarkerBackgroundColour = QColor(0xED, 0xD4, 0x00);
const int LogicSignal::TriggerMarkerPadding = 2;
const char* LogicSignal::TriggerMarkerIcons[8] = {
	nullptr,
	":/icons/trigger-marker-low.svg",
	":/icons/trigger-marker-high.svg",
	":/icons/trigger-marker-rising.svg",
	":/icons/trigger-marker-falling.svg",
	":/icons/trigger-marker-change.svg",
	nullptr,
	nullptr
};

QCache<QString, const QIcon> LogicSignal::icon_cache_;
QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;

LogicSignal::LogicSignal(
	pv::Session &session,
	shared_ptr<devices::Device> device,
	shared_ptr<data::SignalBase> base) :
	Signal(session, base),
	device_(device),
	trigger_none_(nullptr),
	trigger_rising_(nullptr),
	trigger_high_(nullptr),
	trigger_falling_(nullptr),
	trigger_low_(nullptr),
	trigger_change_(nullptr)
{
	shared_ptr<Trigger> trigger;

	base_->set_colour(SignalColours[base->index() % countof(SignalColours)]);

	GlobalSettings gs;
	signal_height_ = gs.value(GlobalSettings::Key_View_DefaultLogicHeight).toInt();

	/* 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() == base_->channel())
					trigger_match_ = match->type();
}

shared_ptr<pv::data::SignalData> LogicSignal::data() const
{
	return base_->logic_data();
}

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

void LogicSignal::save_settings(QSettings &settings) const
{
	settings.setValue("trace_height", signal_height_);
}

void LogicSignal::restore_settings(QSettings &settings)
{
	if (settings.contains("trace_height")) {
		const int old_height = signal_height_;
		signal_height_ = settings.value("trace_height").toInt();

		if ((signal_height_ != old_height) && owner_) {
			// Call order is important, otherwise the lazy event handler won't work
			owner_->extents_changed(false, true);
			owner_->row_item_appearance_changed(false, true);
		}
	}
}

pair<int, int> LogicSignal::v_extents() const
{
	const int signal_margin =
		QFontMetrics(QApplication::font()).height() / 2;
	return make_pair(-signal_height_ - signal_margin, signal_margin);
}

int LogicSignal::scale_handle_offset() const
{
	return -signal_height_;
}

void LogicSignal::scale_handle_dragged(int offset)
{
	const int font_height = QFontMetrics(QApplication::font()).height();
	const int units = (-offset / font_height);
	signal_height_ = ((units < 1) ? 1 : units) * font_height;
}

void LogicSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
{
	QLineF *line;

	vector< pair<int64_t, bool> > edges;

	assert(base_);
	assert(owner_);

	const int y = get_visual_y();

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

	const float high_offset = y - signal_height_ + 0.5f;
	const float low_offset = y + 0.5f;

	const deque< shared_ptr<pv::data::LogicSegment> > &segments =
		base_->logic_data()->logic_segments();
	if (segments.empty())
		return;

	shared_ptr<pv::data::LogicSegment> segment;
	try {
		segment = segments.at(current_segment_);
	} catch (out_of_range) {
		qDebug() << "Current logic segment out of range for signal" << base_->name();
		return;
	}

	double samplerate = segment->samplerate();

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

	const double pixels_offset = pp.pixels_offset();
	const pv::util::Timestamp& start_time = segment->start_time();
	const int64_t last_sample = segment->get_sample_count() - 1;
	const double samples_per_pixel = samplerate * pp.scale();
	const double pixels_per_sample = 1 / samples_per_pixel;
	const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
	const pv::util::Timestamp end = start + samples_per_pixel * pp.width();

	const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
		(int64_t)0), last_sample);
	const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
		(int64_t)0), last_sample);

	segment->get_subsampled_edges(edges, start_sample, end_sample,
		samples_per_pixel / Oversampling, base_->index());
	assert(edges.size() >= 2);

	// Check whether we need to paint the sampling points
	GlobalSettings settings;
	const bool show_sampling_points =
		settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
		(samples_per_pixel < 0.25);

	vector<QRectF> sampling_points;
	float sampling_point_x = 0.0f;
	int64_t sampling_point_sample = start_sample;
	const int w = 2;

	if (show_sampling_points) {
		sampling_points.reserve(end_sample - start_sample + 1);
		sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
	}

	// 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) + pp.left();
		*line++ = QLineF(x, high_offset, x, low_offset);

		if (show_sampling_points)
			while (sampling_point_sample < (*i).first) {
				const float y = (*i).second ? low_offset : high_offset;
				sampling_points.emplace_back(
					QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
				sampling_point_sample++;
				sampling_point_x += pixels_per_sample;
			};
	}

	// Calculate the sample points from the last edge to the end of the trace
	if (show_sampling_points)
		while ((uint64_t)sampling_point_sample <= end_sample) {
			// Signal changed after the last edge, so the level is inverted
			const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
			sampling_points.emplace_back(
				QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
			sampling_point_sample++;
			sampling_point_x += pixels_per_sample;
		};

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

	delete[] cap_lines;

	// Paint the sampling points
	if (show_sampling_points) {
		p.setPen(SamplingPointColour);
		p.drawRects(sampling_points.data(), sampling_points.size());
	}
}

void LogicSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
{
	// Draw the trigger marker
	if (!trigger_match_ || !base_->enabled())
		return;

	const int y = get_visual_y();
	const vector<int32_t> trig_types = get_trigger_types();
	for (int32_t type_id : trig_types) {
		const TriggerMatchType *const type =
			TriggerMatchType::get(type_id);
		if (trigger_match_ != type || type_id < 0 ||
			(size_t)type_id >= countof(TriggerMarkerIcons) ||
			!TriggerMarkerIcons[type_id])
			continue;

		const QPixmap *const pixmap = get_pixmap(
			TriggerMarkerIcons[type_id]);
		if (!pixmap)
			continue;

		const float pad = TriggerMarkerPadding - 0.5f;
		const QSize size = pixmap->size();
		const QPoint point(
			pp.right() - size.width() - pad * 2,
			y - (signal_height_ + size.height()) / 2);

		p.setPen(QPen(TriggerMarkerBackgroundColour.darker()));
		p.setBrush(TriggerMarkerBackgroundColour);
		p.drawRoundedRect(QRectF(point, size).adjusted(
			-pad, -pad, pad, pad), pad, pad);
		p.drawPixmap(point, *pixmap);

		break;
	}
}

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
{
	// We may not be associated with a device
	if (!device_)
		return vector<int32_t>();

	const auto sr_dev = device_->device();
	if (sr_dev->config_check(ConfigKey::TRIGGER_MATCH, Capability::LIST)) {
		const Glib::VariantContainerBase gvar =
			sr_dev->config_list(ConfigKey::TRIGGER_MATCH);

		vector<int32_t> ttypes;

		for (unsigned int i = 0; i < gvar.get_n_children(); i++) {
			Glib::VariantBase tmp_vb;
			gvar.get_child(tmp_vb, i);

			Glib::Variant<int32_t> tmp_v =
				Glib::VariantBase::cast_dynamic< Glib::Variant<int32_t> >(tmp_vb);

			ttypes.push_back(tmp_v.get());
		}

		return ttypes;
	} else {
		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(false);
		}
	}

	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);

	signal_height_sb_ = new QSpinBox(parent);
	signal_height_sb_->setRange(5, 1000);
	signal_height_sb_->setSingleStep(5);
	signal_height_sb_->setSuffix(tr(" pixels"));
	signal_height_sb_->setValue(signal_height_);
	connect(signal_height_sb_, SIGNAL(valueChanged(int)),
		this, SLOT(on_signal_height_changed(int)));
	form->addRow(tr("Trace height"), signal_height_sb_);

	// Trigger settings
	const vector<int32_t> trig_types = get_trigger_types();

	if (!trig_types.empty()) {
		trigger_bar_ = new QToolBar(parent);
		init_trigger_actions(trigger_bar_);
		trigger_bar_->addAction(trigger_none_);
		trigger_none_->setChecked(!trigger_match_);

		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 (none_of(matches.begin(), matches.end(),
			    [&](shared_ptr<TriggerMatch> match) {
					return match->channel() != base_->channel(); }))
				continue;

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

	if (trigger_match_) {
		// Until we can let the user decide how to group trigger matches
		// into stages, put all of the matches into a single stage --
		// most devices only support a single trigger stage.
		if (new_trigger->stages().empty())
			new_trigger->add_stage();

		new_trigger->stages().back()->add_match(base_->channel(),
			trigger_match_);
	}

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

	if (owner_)
		owner_->row_item_appearance_changed(false, true);
}

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

	return icon_cache_.take(path);
}

const QPixmap* LogicSignal::get_pixmap(const char *path)
{
	if (!pixmap_cache_.contains(path)) {
		const QPixmap *pixmap = new QPixmap(path);
		pixmap_cache_.insert(path, pixmap);
	}

	return pixmap_cache_.take(path);
}

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();
}

void LogicSignal::on_signal_height_changed(int height)
{
	signal_height_ = height;

	if (owner_) {
		// Call order is important, otherwise the lazy event handler won't work
		owner_->extents_changed(false, true);
		owner_->row_item_appearance_changed(false, true);
	}
}

} // namespace trace
} // namespace views
} // 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, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include <extdef.h>
	21
	22	#include <cassert>
	23	#include <cmath>
	24
	25	#include <algorithm>
	26
	27	#include <QApplication>
	28	#include <QFormLayout>
	29	#include <QToolBar>
	30
	31	#include "logicsignal.hpp"
	32	#include "view.hpp"
	33
	34	#include <pv/data/logic.hpp>
	35	#include <pv/data/logicsegment.hpp>
	36	#include <pv/data/signalbase.hpp>
	37	#include <pv/devicemanager.hpp>
	38	#include <pv/devices/device.hpp>
	39	#include <pv/globalsettings.hpp>
	40	#include <pv/session.hpp>
	41
	42	#include <libsigrokcxx/libsigrokcxx.hpp>
	43
	44	using std::deque;
	45	using std::max;
	46	using std::make_pair;
	47	using std::min;
	48	using std::none_of;
	49	using std::out_of_range;
	50	using std::pair;
	51	using std::shared_ptr;
	52	using std::vector;
	53
	54	using sigrok::ConfigKey;
	55	using sigrok::Capability;
	56	using sigrok::Trigger;
	57	using sigrok::TriggerMatch;
	58	using sigrok::TriggerMatchType;
	59
	60	namespace pv {
	61	namespace views {
	62	namespace trace {
	63
	64	const float LogicSignal::Oversampling = 2.0f;
	65
	66	const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
	67	const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
	68	const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
	69	const QColor LogicSignal::SamplingPointColour(0x77, 0x77, 0x77);
	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	QColor LogicSignal::TriggerMarkerBackgroundColour = QColor(0xED, 0xD4, 0x00);
	85	const int LogicSignal::TriggerMarkerPadding = 2;
	86	const char* LogicSignal::TriggerMarkerIcons[8] = {
	87	nullptr,
	88	":/icons/trigger-marker-low.svg",
	89	":/icons/trigger-marker-high.svg",
	90	":/icons/trigger-marker-rising.svg",
	91	":/icons/trigger-marker-falling.svg",
	92	":/icons/trigger-marker-change.svg",
	93	nullptr,
	94	nullptr
	95	};
	96
	97	QCache<QString, const QIcon> LogicSignal::icon_cache_;
	98	QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;
	99
	100	LogicSignal::LogicSignal(
	101	pv::Session &session,
	102	shared_ptr<devices::Device> device,
	103	shared_ptr<data::SignalBase> base) :
	104	Signal(session, base),
	105	device_(device),
	106	trigger_none_(nullptr),
	107	trigger_rising_(nullptr),
	108	trigger_high_(nullptr),
	109	trigger_falling_(nullptr),
	110	trigger_low_(nullptr),
	111	trigger_change_(nullptr)
	112	{
	113	shared_ptr<Trigger> trigger;
	114
	115	base_->set_colour(SignalColours[base->index() % countof(SignalColours)]);
	116
	117	GlobalSettings gs;
	118	signal_height_ = gs.value(GlobalSettings::Key_View_DefaultLogicHeight).toInt();
	119
	120	/* Populate this channel's trigger setting with whatever we
	121	* find in the current session trigger, if anything. */
	122	trigger_match_ = nullptr;
	123	if ((trigger = session_.session()->trigger()))
	124	for (auto stage : trigger->stages())
	125	for (auto match : stage->matches())
	126	if (match->channel() == base_->channel())
	127	trigger_match_ = match->type();
	128	}
	129
	130	shared_ptr<pv::data::SignalData> LogicSignal::data() const
	131	{
	132	return base_->logic_data();
	133	}
	134
	135	shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
	136	{
	137	return base_->logic_data();
	138	}
	139
	140	void LogicSignal::save_settings(QSettings &settings) const
	141	{
	142	settings.setValue("trace_height", signal_height_);
	143	}
	144
	145	void LogicSignal::restore_settings(QSettings &settings)
	146	{
	147	if (settings.contains("trace_height")) {
	148	const int old_height = signal_height_;
	149	signal_height_ = settings.value("trace_height").toInt();
	150
	151	if ((signal_height_ != old_height) && owner_) {
	152	// Call order is important, otherwise the lazy event handler won't work
	153	owner_->extents_changed(false, true);
	154	owner_->row_item_appearance_changed(false, true);
	155	}
	156	}
	157	}
	158
	159	pair<int, int> LogicSignal::v_extents() const
	160	{
	161	const int signal_margin =
	162	QFontMetrics(QApplication::font()).height() / 2;
	163	return make_pair(-signal_height_ - signal_margin, signal_margin);
	164	}
	165
	166	int LogicSignal::scale_handle_offset() const
	167	{
	168	return -signal_height_;
	169	}
	170
	171	void LogicSignal::scale_handle_dragged(int offset)
	172	{
	173	const int font_height = QFontMetrics(QApplication::font()).height();
	174	const int units = (-offset / font_height);
	175	signal_height_ = ((units < 1) ? 1 : units) * font_height;
	176	}
	177
	178	void LogicSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
	179	{
	180	QLineF *line;
	181
	182	vector< pair<int64_t, bool> > edges;
	183
	184	assert(base_);
	185	assert(owner_);
	186
	187	const int y = get_visual_y();
	188
	189	if (!base_->enabled())
	190	return;
	191
	192	const float high_offset = y - signal_height_ + 0.5f;
	193	const float low_offset = y + 0.5f;
	194
	195	const deque< shared_ptr<pv::data::LogicSegment> > &segments =
	196	base_->logic_data()->logic_segments();
	197	if (segments.empty())
	198	return;
	199
	200	shared_ptr<pv::data::LogicSegment> segment;
	201	try {
	202	segment = segments.at(current_segment_);
	203	} catch (out_of_range) {
	204	qDebug() << "Current logic segment out of range for signal" << base_->name();
	205	return;
	206	}
	207
	208	double samplerate = segment->samplerate();
	209
	210	// Show sample rate as 1Hz when it is unknown
	211	if (samplerate == 0.0)
	212	samplerate = 1.0;
	213
	214	const double pixels_offset = pp.pixels_offset();
	215	const pv::util::Timestamp& start_time = segment->start_time();
	216	const int64_t last_sample = segment->get_sample_count() - 1;
	217	const double samples_per_pixel = samplerate * pp.scale();
	218	const double pixels_per_sample = 1 / samples_per_pixel;
	219	const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
	220	const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
	221
	222	const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
	223	(int64_t)0), last_sample);
	224	const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
	225	(int64_t)0), last_sample);
	226
	227	segment->get_subsampled_edges(edges, start_sample, end_sample,
	228	samples_per_pixel / Oversampling, base_->index());
	229	assert(edges.size() >= 2);
	230
	231	// Check whether we need to paint the sampling points
	232	GlobalSettings settings;
	233	const bool show_sampling_points =
	234	settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
	235	(samples_per_pixel < 0.25);
	236
	237	vector<QRectF> sampling_points;
	238	float sampling_point_x = 0.0f;
	239	int64_t sampling_point_sample = start_sample;
	240	const int w = 2;
	241
	242	if (show_sampling_points) {
	243	sampling_points.reserve(end_sample - start_sample + 1);
	244	sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
	245	}
	246
	247	// Paint the edges
	248	const unsigned int edge_count = edges.size() - 2;
	249	QLineF *const edge_lines = new QLineF[edge_count];
	250	line = edge_lines;
	251
	252	for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
	253	const float x = ((*i).first / samples_per_pixel -
	254	pixels_offset) + pp.left();
	255	*line++ = QLineF(x, high_offset, x, low_offset);
	256
	257	if (show_sampling_points)
	258	while (sampling_point_sample < (*i).first) {
	259	const float y = (*i).second ? low_offset : high_offset;
	260	sampling_points.emplace_back(
	261	QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
	262	sampling_point_sample++;
	263	sampling_point_x += pixels_per_sample;
	264	};
	265	}
	266
	267	// Calculate the sample points from the last edge to the end of the trace
	268	if (show_sampling_points)
	269	while ((uint64_t)sampling_point_sample <= end_sample) {
	270	// Signal changed after the last edge, so the level is inverted
	271	const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
	272	sampling_points.emplace_back(
	273	QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
	274	sampling_point_sample++;
	275	sampling_point_x += pixels_per_sample;
	276	};
	277
	278	p.setPen(EdgeColour);
	279	p.drawLines(edge_lines, edge_count);
	280	delete[] edge_lines;
	281
	282	// Paint the caps
	283	const unsigned int max_cap_line_count = edges.size();
	284	QLineF *const cap_lines = new QLineF[max_cap_line_count];
	285
	286	p.setPen(HighColour);
	287	paint_caps(p, cap_lines, edges, true, samples_per_pixel,
	288	pixels_offset, pp.left(), high_offset);
	289	p.setPen(LowColour);
	290	paint_caps(p, cap_lines, edges, false, samples_per_pixel,
	291	pixels_offset, pp.left(), low_offset);
	292
	293	delete[] cap_lines;
	294
	295	// Paint the sampling points
	296	if (show_sampling_points) {
	297	p.setPen(SamplingPointColour);
	298	p.drawRects(sampling_points.data(), sampling_points.size());
	299	}
	300	}
	301
	302	void LogicSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
	303	{
	304	// Draw the trigger marker
	305	if (!trigger_match_ \|\| !base_->enabled())
	306	return;
	307
	308	const int y = get_visual_y();
	309	const vector<int32_t> trig_types = get_trigger_types();
	310	for (int32_t type_id : trig_types) {
	311	const TriggerMatchType *const type =
	312	TriggerMatchType::get(type_id);
	313	if (trigger_match_ != type \|\| type_id < 0 \|\|
	314	(size_t)type_id >= countof(TriggerMarkerIcons) \|\|
	315	!TriggerMarkerIcons[type_id])
	316	continue;
	317
	318	const QPixmap *const pixmap = get_pixmap(
	319	TriggerMarkerIcons[type_id]);
	320	if (!pixmap)
	321	continue;
	322
	323	const float pad = TriggerMarkerPadding - 0.5f;
	324	const QSize size = pixmap->size();
	325	const QPoint point(
	326	pp.right() - size.width() - pad * 2,
	327	y - (signal_height_ + size.height()) / 2);
	328
	329	p.setPen(QPen(TriggerMarkerBackgroundColour.darker()));
	330	p.setBrush(TriggerMarkerBackgroundColour);
	331	p.drawRoundedRect(QRectF(point, size).adjusted(
	332	-pad, -pad, pad, pad), pad, pad);
	333	p.drawPixmap(point, *pixmap);
	334
	335	break;
	336	}
	337	}
	338
	339	void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
	340	vector< pair<int64_t, bool> > &edges, bool level,
	341	double samples_per_pixel, double pixels_offset, float x_offset,
	342	float y_offset)
	343	{
	344	QLineF *line = lines;
	345
	346	for (auto i = edges.begin(); i != (edges.end() - 1); i++)
	347	if ((*i).second == level) {
	348	*line++ = QLineF(
	349	((*i).first / samples_per_pixel -
	350	pixels_offset) + x_offset, y_offset,
	351	((*(i+1)).first / samples_per_pixel -
	352	pixels_offset) + x_offset, y_offset);
	353	}
	354
	355	p.drawLines(lines, line - lines);
	356	}
	357
	358	void LogicSignal::init_trigger_actions(QWidget *parent)
	359	{
	360	trigger_none_ = new QAction(*get_icon(":/icons/trigger-none.svg"),
	361	tr("No trigger"), parent);
	362	trigger_none_->setCheckable(true);
	363	connect(trigger_none_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	364
	365	trigger_rising_ = new QAction(*get_icon(":/icons/trigger-rising.svg"),
	366	tr("Trigger on rising edge"), parent);
	367	trigger_rising_->setCheckable(true);
	368	connect(trigger_rising_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	369
	370	trigger_high_ = new QAction(*get_icon(":/icons/trigger-high.svg"),
	371	tr("Trigger on high level"), parent);
	372	trigger_high_->setCheckable(true);
	373	connect(trigger_high_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	374
	375	trigger_falling_ = new QAction(*get_icon(":/icons/trigger-falling.svg"),
	376	tr("Trigger on falling edge"), parent);
	377	trigger_falling_->setCheckable(true);
	378	connect(trigger_falling_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	379
	380	trigger_low_ = new QAction(*get_icon(":/icons/trigger-low.svg"),
	381	tr("Trigger on low level"), parent);
	382	trigger_low_->setCheckable(true);
	383	connect(trigger_low_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	384
	385	trigger_change_ = new QAction(*get_icon(":/icons/trigger-change.svg"),
	386	tr("Trigger on rising or falling edge"), parent);
	387	trigger_change_->setCheckable(true);
	388	connect(trigger_change_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	389	}
	390
	391	const vector<int32_t> LogicSignal::get_trigger_types() const
	392	{
	393	// We may not be associated with a device
	394	if (!device_)
	395	return vector<int32_t>();
	396
	397	const auto sr_dev = device_->device();
	398	if (sr_dev->config_check(ConfigKey::TRIGGER_MATCH, Capability::LIST)) {
	399	const Glib::VariantContainerBase gvar =
	400	sr_dev->config_list(ConfigKey::TRIGGER_MATCH);
	401
	402	vector<int32_t> ttypes;
	403
	404	for (unsigned int i = 0; i < gvar.get_n_children(); i++) {
	405	Glib::VariantBase tmp_vb;
	406	gvar.get_child(tmp_vb, i);
	407
	408	Glib::Variant<int32_t> tmp_v =
	409	Glib::VariantBase::cast_dynamic< Glib::Variant<int32_t> >(tmp_vb);
	410
	411	ttypes.push_back(tmp_v.get());
	412	}
	413
	414	return ttypes;
	415	} else {
	416	return vector<int32_t>();
	417	}
	418	}
	419
	420	QAction* LogicSignal::action_from_trigger_type(const TriggerMatchType *type)
	421	{
	422	QAction *action;
	423
	424	action = trigger_none_;
	425	if (type) {
	426	switch (type->id()) {
	427	case SR_TRIGGER_ZERO:
	428	action = trigger_low_;
	429	break;
	430	case SR_TRIGGER_ONE:
	431	action = trigger_high_;
	432	break;
	433	case SR_TRIGGER_RISING:
	434	action = trigger_rising_;
	435	break;
	436	case SR_TRIGGER_FALLING:
	437	action = trigger_falling_;
	438	break;
	439	case SR_TRIGGER_EDGE:
	440	action = trigger_change_;
	441	break;
	442	default:
	443	assert(false);
	444	}
	445	}
	446
	447	return action;
	448	}
	449
	450	const TriggerMatchType LogicSignal::trigger_type_from_action(QAction action)
	451	{
	452	if (action == trigger_low_)
	453	return TriggerMatchType::ZERO;
	454	else if (action == trigger_high_)
	455	return TriggerMatchType::ONE;
	456	else if (action == trigger_rising_)
	457	return TriggerMatchType::RISING;
	458	else if (action == trigger_falling_)
	459	return TriggerMatchType::FALLING;
	460	else if (action == trigger_change_)
	461	return TriggerMatchType::EDGE;
	462	else
	463	return nullptr;
	464	}
	465
	466	void LogicSignal::populate_popup_form(QWidget parent, QFormLayout form)
	467	{
	468	Signal::populate_popup_form(parent, form);
	469
	470	signal_height_sb_ = new QSpinBox(parent);
	471	signal_height_sb_->setRange(5, 1000);
	472	signal_height_sb_->setSingleStep(5);
	473	signal_height_sb_->setSuffix(tr(" pixels"));
	474	signal_height_sb_->setValue(signal_height_);
	475	connect(signal_height_sb_, SIGNAL(valueChanged(int)),
	476	this, SLOT(on_signal_height_changed(int)));
	477	form->addRow(tr("Trace height"), signal_height_sb_);
	478
	479	// Trigger settings
	480	const vector<int32_t> trig_types = get_trigger_types();
	481
	482	if (!trig_types.empty()) {
	483	trigger_bar_ = new QToolBar(parent);
	484	init_trigger_actions(trigger_bar_);
	485	trigger_bar_->addAction(trigger_none_);
	486	trigger_none_->setChecked(!trigger_match_);
	487
	488	for (auto type_id : trig_types) {
	489	const TriggerMatchType *const type =
	490	TriggerMatchType::get(type_id);
	491	QAction *const action = action_from_trigger_type(type);
	492	trigger_bar_->addAction(action);
	493	action->setChecked(trigger_match_ == type);
	494	}
	495	form->addRow(tr("Trigger"), trigger_bar_);
	496	}
	497	}
	498
	499	void LogicSignal::modify_trigger()
	500	{
	501	auto trigger = session_.session()->trigger();
	502	auto new_trigger = session_.device_manager().context()->create_trigger("pulseview");
	503
	504	if (trigger) {
	505	for (auto stage : trigger->stages()) {
	506	const auto &matches = stage->matches();
	507	if (none_of(matches.begin(), matches.end(),
	508	[&](shared_ptr<TriggerMatch> match) {
	509	return match->channel() != base_->channel(); }))
	510	continue;
	511
	512	auto new_stage = new_trigger->add_stage();
	513	for (auto match : stage->matches()) {
	514	if (match->channel() == base_->channel())
	515	continue;
	516	new_stage->add_match(match->channel(), match->type());
	517	}
	518	}
	519	}
	520
	521	if (trigger_match_) {
	522	// Until we can let the user decide how to group trigger matches
	523	// into stages, put all of the matches into a single stage --
	524	// most devices only support a single trigger stage.
	525	if (new_trigger->stages().empty())
	526	new_trigger->add_stage();
	527
	528	new_trigger->stages().back()->add_match(base_->channel(),
	529	trigger_match_);
	530	}
	531
	532	session_.session()->set_trigger(
	533	new_trigger->stages().empty() ? nullptr : new_trigger);
	534
	535	if (owner_)
	536	owner_->row_item_appearance_changed(false, true);
	537	}
	538
	539	const QIcon* LogicSignal::get_icon(const char *path)
	540	{
	541	if (!icon_cache_.contains(path)) {
	542	const QIcon *icon = new QIcon(path);
	543	icon_cache_.insert(path, icon);
	544	}
	545
	546	return icon_cache_.take(path);
	547	}
	548
	549	const QPixmap* LogicSignal::get_pixmap(const char *path)
	550	{
	551	if (!pixmap_cache_.contains(path)) {
	552	const QPixmap *pixmap = new QPixmap(path);
	553	pixmap_cache_.insert(path, pixmap);
	554	}
	555
	556	return pixmap_cache_.take(path);
	557	}
	558
	559	void LogicSignal::on_trigger()
	560	{
	561	QAction *action;
	562
	563	action_from_trigger_type(trigger_match_)->setChecked(false);
	564
	565	action = (QAction *)sender();
	566	action->setChecked(true);
	567	trigger_match_ = trigger_type_from_action(action);
	568
	569	modify_trigger();
	570	}
	571
	572	void LogicSignal::on_signal_height_changed(int height)
	573	{
	574	signal_height_ = height;
	575
	576	if (owner_) {
	577	// Call order is important, otherwise the lazy event handler won't work
	578	owner_->extents_changed(false, true);
	579	owner_->row_item_appearance_changed(false, true);
	580	}
	581	}
	582
	583	} // namespace trace
	584	} // namespace views
	585	} // namespace pv