[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::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;

	const shared_ptr<pv::data::LogicSegment> &segment = segments.front();

	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::pair;
	50	using std::shared_ptr;
	51	using std::vector;
	52
	53	using sigrok::ConfigKey;
	54	using sigrok::Capability;
	55	using sigrok::Trigger;
	56	using sigrok::TriggerMatch;
	57	using sigrok::TriggerMatchType;
	58
	59	namespace pv {
	60	namespace views {
	61	namespace trace {
	62
	63	const float LogicSignal::Oversampling = 2.0f;
	64
	65	const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
	66	const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
	67	const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
	68	const QColor LogicSignal::SamplingPointColour(0x77, 0x77, 0x77);
	69
	70	const QColor LogicSignal::SignalColours[10] = {
	71	QColor(0x16, 0x19, 0x1A), // Black
	72	QColor(0x8F, 0x52, 0x02), // Brown
	73	QColor(0xCC, 0x00, 0x00), // Red
	74	QColor(0xF5, 0x79, 0x00), // Orange
	75	QColor(0xED, 0xD4, 0x00), // Yellow
	76	QColor(0x73, 0xD2, 0x16), // Green
	77	QColor(0x34, 0x65, 0xA4), // Blue
	78	QColor(0x75, 0x50, 0x7B), // Violet
	79	QColor(0x88, 0x8A, 0x85), // Grey
	80	QColor(0xEE, 0xEE, 0xEC), // White
	81	};
	82
	83	QColor LogicSignal::TriggerMarkerBackgroundColour = QColor(0xED, 0xD4, 0x00);
	84	const int LogicSignal::TriggerMarkerPadding = 2;
	85	const char* LogicSignal::TriggerMarkerIcons[8] = {
	86	nullptr,
	87	":/icons/trigger-marker-low.svg",
	88	":/icons/trigger-marker-high.svg",
	89	":/icons/trigger-marker-rising.svg",
	90	":/icons/trigger-marker-falling.svg",
	91	":/icons/trigger-marker-change.svg",
	92	nullptr,
	93	nullptr
	94	};
	95
	96	QCache<QString, const QIcon> LogicSignal::icon_cache_;
	97	QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;
	98
	99	LogicSignal::LogicSignal(
	100	pv::Session &session,
	101	shared_ptr<devices::Device> device,
	102	shared_ptr<data::SignalBase> base) :
	103	Signal(session, base),
	104	device_(device),
	105	trigger_none_(nullptr),
	106	trigger_rising_(nullptr),
	107	trigger_high_(nullptr),
	108	trigger_falling_(nullptr),
	109	trigger_low_(nullptr),
	110	trigger_change_(nullptr)
	111	{
	112	shared_ptr<Trigger> trigger;
	113
	114	base_->set_colour(SignalColours[base->index() % countof(SignalColours)]);
	115
	116	GlobalSettings gs;
	117	signal_height_ = gs.value(GlobalSettings::Key_View_DefaultLogicHeight).toInt();
	118
	119	/* Populate this channel's trigger setting with whatever we
	120	* find in the current session trigger, if anything. */
	121	trigger_match_ = nullptr;
	122	if ((trigger = session_.session()->trigger()))
	123	for (auto stage : trigger->stages())
	124	for (auto match : stage->matches())
	125	if (match->channel() == base_->channel())
	126	trigger_match_ = match->type();
	127	}
	128
	129	shared_ptr<pv::data::SignalData> LogicSignal::data() const
	130	{
	131	return base_->logic_data();
	132	}
	133
	134	shared_ptr<pv::data::Logic> LogicSignal::logic_data() const
	135	{
	136	return base_->logic_data();
	137	}
	138
	139	void LogicSignal::save_settings(QSettings &settings) const
	140	{
	141	settings.setValue("trace_height", signal_height_);
	142	}
	143
	144	void LogicSignal::restore_settings(QSettings &settings)
	145	{
	146	if (settings.contains("trace_height")) {
	147	const int old_height = signal_height_;
	148	signal_height_ = settings.value("trace_height").toInt();
	149
	150	if ((signal_height_ != old_height) && owner_) {
	151	// Call order is important, otherwise the lazy event handler won't work
	152	owner_->extents_changed(false, true);
	153	owner_->row_item_appearance_changed(false, true);
	154	}
	155	}
	156	}
	157
	158	pair<int, int> LogicSignal::v_extents() const
	159	{
	160	const int signal_margin =
	161	QFontMetrics(QApplication::font()).height() / 2;
	162	return make_pair(-signal_height_ - signal_margin, signal_margin);
	163	}
	164
	165	int LogicSignal::scale_handle_offset() const
	166	{
	167	return -signal_height_;
	168	}
	169
	170	void LogicSignal::scale_handle_dragged(int offset)
	171	{
	172	const int font_height = QFontMetrics(QApplication::font()).height();
	173	const int units = (-offset / font_height);
	174	signal_height_ = ((units < 1) ? 1 : units) * font_height;
	175	}
	176
	177	void LogicSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
	178	{
	179	QLineF *line;
	180
	181	vector< pair<int64_t, bool> > edges;
	182
	183	assert(base_);
	184	assert(owner_);
	185
	186	const int y = get_visual_y();
	187
	188	if (!base_->enabled())
	189	return;
	190
	191	const float high_offset = y - signal_height_ + 0.5f;
	192	const float low_offset = y + 0.5f;
	193
	194	const deque< shared_ptr<pv::data::LogicSegment> > &segments =
	195	base_->logic_data()->logic_segments();
	196	if (segments.empty())
	197	return;
	198
	199	const shared_ptr<pv::data::LogicSegment> &segment = segments.front();
	200
	201	double samplerate = segment->samplerate();
	202
	203	// Show sample rate as 1Hz when it is unknown
	204	if (samplerate == 0.0)
	205	samplerate = 1.0;
	206
	207	const double pixels_offset = pp.pixels_offset();
	208	const pv::util::Timestamp& start_time = segment->start_time();
	209	const int64_t last_sample = segment->get_sample_count() - 1;
	210	const double samples_per_pixel = samplerate * pp.scale();
	211	const double pixels_per_sample = 1 / samples_per_pixel;
	212	const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
	213	const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
	214
	215	const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
	216	(int64_t)0), last_sample);
	217	const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
	218	(int64_t)0), last_sample);
	219
	220	segment->get_subsampled_edges(edges, start_sample, end_sample,
	221	samples_per_pixel / Oversampling, base_->index());
	222	assert(edges.size() >= 2);
	223
	224	// Check whether we need to paint the sampling points
	225	GlobalSettings settings;
	226	const bool show_sampling_points =
	227	settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
	228	(samples_per_pixel < 0.25);
	229
	230	vector<QRectF> sampling_points;
	231	float sampling_point_x = 0.0f;
	232	int64_t sampling_point_sample = start_sample;
	233	const int w = 2;
	234
	235	if (show_sampling_points) {
	236	sampling_points.reserve(end_sample - start_sample + 1);
	237	sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
	238	}
	239
	240	// Paint the edges
	241	const unsigned int edge_count = edges.size() - 2;
	242	QLineF *const edge_lines = new QLineF[edge_count];
	243	line = edge_lines;
	244
	245	for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
	246	const float x = ((*i).first / samples_per_pixel -
	247	pixels_offset) + pp.left();
	248	*line++ = QLineF(x, high_offset, x, low_offset);
	249
	250	if (show_sampling_points)
	251	while (sampling_point_sample < (*i).first) {
	252	const float y = (*i).second ? low_offset : high_offset;
	253	sampling_points.emplace_back(
	254	QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
	255	sampling_point_sample++;
	256	sampling_point_x += pixels_per_sample;
	257	};
	258	}
	259
	260	// Calculate the sample points from the last edge to the end of the trace
	261	if (show_sampling_points)
	262	while ((uint64_t)sampling_point_sample <= end_sample) {
	263	// Signal changed after the last edge, so the level is inverted
	264	const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
	265	sampling_points.emplace_back(
	266	QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
	267	sampling_point_sample++;
	268	sampling_point_x += pixels_per_sample;
	269	};
	270
	271	p.setPen(EdgeColour);
	272	p.drawLines(edge_lines, edge_count);
	273	delete[] edge_lines;
	274
	275	// Paint the caps
	276	const unsigned int max_cap_line_count = edges.size();
	277	QLineF *const cap_lines = new QLineF[max_cap_line_count];
	278
	279	p.setPen(HighColour);
	280	paint_caps(p, cap_lines, edges, true, samples_per_pixel,
	281	pixels_offset, pp.left(), high_offset);
	282	p.setPen(LowColour);
	283	paint_caps(p, cap_lines, edges, false, samples_per_pixel,
	284	pixels_offset, pp.left(), low_offset);
	285
	286	delete[] cap_lines;
	287
	288	// Paint the sampling points
	289	if (show_sampling_points) {
	290	p.setPen(SamplingPointColour);
	291	p.drawRects(sampling_points.data(), sampling_points.size());
	292	}
	293	}
	294
	295	void LogicSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
	296	{
	297	// Draw the trigger marker
	298	if (!trigger_match_ \|\| !base_->enabled())
	299	return;
	300
	301	const int y = get_visual_y();
	302	const vector<int32_t> trig_types = get_trigger_types();
	303	for (int32_t type_id : trig_types) {
	304	const TriggerMatchType *const type =
	305	TriggerMatchType::get(type_id);
	306	if (trigger_match_ != type \|\| type_id < 0 \|\|
	307	(size_t)type_id >= countof(TriggerMarkerIcons) \|\|
	308	!TriggerMarkerIcons[type_id])
	309	continue;
	310
	311	const QPixmap *const pixmap = get_pixmap(
	312	TriggerMarkerIcons[type_id]);
	313	if (!pixmap)
	314	continue;
	315
	316	const float pad = TriggerMarkerPadding - 0.5f;
	317	const QSize size = pixmap->size();
	318	const QPoint point(
	319	pp.right() - size.width() - pad * 2,
	320	y - (signal_height_ + size.height()) / 2);
	321
	322	p.setPen(QPen(TriggerMarkerBackgroundColour.darker()));
	323	p.setBrush(TriggerMarkerBackgroundColour);
	324	p.drawRoundedRect(QRectF(point, size).adjusted(
	325	-pad, -pad, pad, pad), pad, pad);
	326	p.drawPixmap(point, *pixmap);
	327
	328	break;
	329	}
	330	}
	331
	332	void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
	333	vector< pair<int64_t, bool> > &edges, bool level,
	334	double samples_per_pixel, double pixels_offset, float x_offset,
	335	float y_offset)
	336	{
	337	QLineF *line = lines;
	338
	339	for (auto i = edges.begin(); i != (edges.end() - 1); i++)
	340	if ((*i).second == level) {
	341	*line++ = QLineF(
	342	((*i).first / samples_per_pixel -
	343	pixels_offset) + x_offset, y_offset,
	344	((*(i+1)).first / samples_per_pixel -
	345	pixels_offset) + x_offset, y_offset);
	346	}
	347
	348	p.drawLines(lines, line - lines);
	349	}
	350
	351	void LogicSignal::init_trigger_actions(QWidget *parent)
	352	{
	353	trigger_none_ = new QAction(*get_icon(":/icons/trigger-none.svg"),
	354	tr("No trigger"), parent);
	355	trigger_none_->setCheckable(true);
	356	connect(trigger_none_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	357
	358	trigger_rising_ = new QAction(*get_icon(":/icons/trigger-rising.svg"),
	359	tr("Trigger on rising edge"), parent);
	360	trigger_rising_->setCheckable(true);
	361	connect(trigger_rising_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	362
	363	trigger_high_ = new QAction(*get_icon(":/icons/trigger-high.svg"),
	364	tr("Trigger on high level"), parent);
	365	trigger_high_->setCheckable(true);
	366	connect(trigger_high_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	367
	368	trigger_falling_ = new QAction(*get_icon(":/icons/trigger-falling.svg"),
	369	tr("Trigger on falling edge"), parent);
	370	trigger_falling_->setCheckable(true);
	371	connect(trigger_falling_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	372
	373	trigger_low_ = new QAction(*get_icon(":/icons/trigger-low.svg"),
	374	tr("Trigger on low level"), parent);
	375	trigger_low_->setCheckable(true);
	376	connect(trigger_low_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	377
	378	trigger_change_ = new QAction(*get_icon(":/icons/trigger-change.svg"),
	379	tr("Trigger on rising or falling edge"), parent);
	380	trigger_change_->setCheckable(true);
	381	connect(trigger_change_, SIGNAL(triggered()), this, SLOT(on_trigger()));
	382	}
	383
	384	const vector<int32_t> LogicSignal::get_trigger_types() const
	385	{
	386	// We may not be associated with a device
	387	if (!device_)
	388	return vector<int32_t>();
	389
	390	const auto sr_dev = device_->device();
	391	if (sr_dev->config_check(ConfigKey::TRIGGER_MATCH, Capability::LIST)) {
	392	const Glib::VariantContainerBase gvar =
	393	sr_dev->config_list(ConfigKey::TRIGGER_MATCH);
	394
	395	vector<int32_t> ttypes;
	396
	397	for (unsigned int i = 0; i < gvar.get_n_children(); i++) {
	398	Glib::VariantBase tmp_vb;
	399	gvar.get_child(tmp_vb, i);
	400
	401	Glib::Variant<int32_t> tmp_v =
	402	Glib::VariantBase::cast_dynamic< Glib::Variant<int32_t> >(tmp_vb);
	403
	404	ttypes.push_back(tmp_v.get());
	405	}
	406
	407	return ttypes;
	408	} else {
	409	return vector<int32_t>();
	410	}
	411	}
	412
	413	QAction* LogicSignal::action_from_trigger_type(const TriggerMatchType *type)
	414	{
	415	QAction *action;
	416
	417	action = trigger_none_;
	418	if (type) {
	419	switch (type->id()) {
	420	case SR_TRIGGER_ZERO:
	421	action = trigger_low_;
	422	break;
	423	case SR_TRIGGER_ONE:
	424	action = trigger_high_;
	425	break;
	426	case SR_TRIGGER_RISING:
	427	action = trigger_rising_;
	428	break;
	429	case SR_TRIGGER_FALLING:
	430	action = trigger_falling_;
	431	break;
	432	case SR_TRIGGER_EDGE:
	433	action = trigger_change_;
	434	break;
	435	default:
	436	assert(false);
	437	}
	438	}
	439
	440	return action;
	441	}
	442
	443	const TriggerMatchType LogicSignal::trigger_type_from_action(QAction action)
	444	{
	445	if (action == trigger_low_)
	446	return TriggerMatchType::ZERO;
	447	else if (action == trigger_high_)
	448	return TriggerMatchType::ONE;
	449	else if (action == trigger_rising_)
	450	return TriggerMatchType::RISING;
	451	else if (action == trigger_falling_)
	452	return TriggerMatchType::FALLING;
	453	else if (action == trigger_change_)
	454	return TriggerMatchType::EDGE;
	455	else
	456	return nullptr;
	457	}
	458
	459	void LogicSignal::populate_popup_form(QWidget parent, QFormLayout form)
	460	{
	461	Signal::populate_popup_form(parent, form);
	462
	463	signal_height_sb_ = new QSpinBox(parent);
	464	signal_height_sb_->setRange(5, 1000);
	465	signal_height_sb_->setSingleStep(5);
	466	signal_height_sb_->setSuffix(tr(" pixels"));
	467	signal_height_sb_->setValue(signal_height_);
	468	connect(signal_height_sb_, SIGNAL(valueChanged(int)),
	469	this, SLOT(on_signal_height_changed(int)));
	470	form->addRow(tr("Trace height"), signal_height_sb_);
	471
	472	// Trigger settings
	473	const vector<int32_t> trig_types = get_trigger_types();
	474
	475	if (!trig_types.empty()) {
	476	trigger_bar_ = new QToolBar(parent);
	477	init_trigger_actions(trigger_bar_);
	478	trigger_bar_->addAction(trigger_none_);
	479	trigger_none_->setChecked(!trigger_match_);
	480
	481	for (auto type_id : trig_types) {
	482	const TriggerMatchType *const type =
	483	TriggerMatchType::get(type_id);
	484	QAction *const action = action_from_trigger_type(type);
	485	trigger_bar_->addAction(action);
	486	action->setChecked(trigger_match_ == type);
	487	}
	488	form->addRow(tr("Trigger"), trigger_bar_);
	489	}
	490	}
	491
	492	void LogicSignal::modify_trigger()
	493	{
	494	auto trigger = session_.session()->trigger();
	495	auto new_trigger = session_.device_manager().context()->create_trigger("pulseview");
	496
	497	if (trigger) {
	498	for (auto stage : trigger->stages()) {
	499	const auto &matches = stage->matches();
	500	if (none_of(matches.begin(), matches.end(),
	501	[&](shared_ptr<TriggerMatch> match) {
	502	return match->channel() != base_->channel(); }))
	503	continue;
	504
	505	auto new_stage = new_trigger->add_stage();
	506	for (auto match : stage->matches()) {
	507	if (match->channel() == base_->channel())
	508	continue;
	509	new_stage->add_match(match->channel(), match->type());
	510	}
	511	}
	512	}
	513
	514	if (trigger_match_) {
	515	// Until we can let the user decide how to group trigger matches
	516	// into stages, put all of the matches into a single stage --
	517	// most devices only support a single trigger stage.
	518	if (new_trigger->stages().empty())
	519	new_trigger->add_stage();
	520
	521	new_trigger->stages().back()->add_match(base_->channel(),
	522	trigger_match_);
	523	}
	524
	525	session_.session()->set_trigger(
	526	new_trigger->stages().empty() ? nullptr : new_trigger);
	527
	528	if (owner_)
	529	owner_->row_item_appearance_changed(false, true);
	530	}
	531
	532	const QIcon* LogicSignal::get_icon(const char *path)
	533	{
	534	if (!icon_cache_.contains(path)) {
	535	const QIcon *icon = new QIcon(path);
	536	icon_cache_.insert(path, icon);
	537	}
	538
	539	return icon_cache_.take(path);
	540	}
	541
	542	const QPixmap* LogicSignal::get_pixmap(const char *path)
	543	{
	544	if (!pixmap_cache_.contains(path)) {
	545	const QPixmap *pixmap = new QPixmap(path);
	546	pixmap_cache_.insert(path, pixmap);
	547	}
	548
	549	return pixmap_cache_.take(path);
	550	}
	551
	552	void LogicSignal::on_trigger()
	553	{
	554	QAction *action;
	555
	556	action_from_trigger_type(trigger_match_)->setChecked(false);
	557
	558	action = (QAction *)sender();
	559	action->setChecked(true);
	560	trigger_match_ = trigger_type_from_action(action);
	561
	562	modify_trigger();
	563	}
	564
	565	void LogicSignal::on_signal_height_changed(int height)
	566	{
	567	signal_height_ = height;
	568
	569	if (owner_) {
	570	// Call order is important, otherwise the lazy event handler won't work
	571	owner_->extents_changed(false, true);
	572	owner_->row_item_appearance_changed(false, true);
	573	}
	574	}
	575
	576	} // namespace trace
	577	} // namespace views
	578	} // namespace pv