[pulseview.git] / pv / toolbars / samplingbar.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 <assert.h>

#include <QAction>
#include <QDebug>
#include <QHelpEvent>
#include <QToolTip>

#include "samplingbar.hpp"

#include <pv/devicemanager.hpp>
#include <pv/mainwindow.hpp>
#include <pv/popups/deviceoptions.hpp>
#include <pv/popups/channels.hpp>
#include <pv/util.hpp>

#include <libsigrok/libsigrok.hpp>

using std::map;
using std::vector;
using std::max;
using std::min;
using std::shared_ptr;
using std::string;

using sigrok::Capability;
using sigrok::ConfigKey;
using sigrok::Device;
using sigrok::Error;

namespace pv {
namespace toolbars {

const uint64_t SamplingBar::MinSampleCount = 100ULL;
const uint64_t SamplingBar::MaxSampleCount = 1000000000000ULL;
const uint64_t SamplingBar::DefaultSampleCount = 1000000;

SamplingBar::SamplingBar(Session &session, MainWindow &main_window) :
	QToolBar("Sampling Bar", &main_window),
	session_(session),
	main_window_(main_window),
	device_selector_(this),
	updating_device_selector_(false),
	configure_button_(this),
	configure_button_action_(NULL),
	channels_button_(this),
	sample_count_(" samples", this),
	sample_rate_("Hz", this),
	updating_sample_rate_(false),
	updating_sample_count_(false),
	sample_count_supported_(false),
	icon_red_(":/icons/status-red.svg"),
	icon_green_(":/icons/status-green.svg"),
	icon_grey_(":/icons/status-grey.svg"),
	run_stop_button_(this)
{
	setObjectName(QString::fromUtf8("SamplingBar"));

	connect(&run_stop_button_, SIGNAL(clicked()),
		this, SLOT(on_run_stop()));
	connect(&device_selector_, SIGNAL(currentIndexChanged (int)),
		this, SLOT(on_device_selected()));
	connect(&sample_count_, SIGNAL(value_changed()),
		this, SLOT(on_sample_count_changed()));
	connect(&sample_rate_, SIGNAL(value_changed()),
		this, SLOT(on_sample_rate_changed()));

	sample_count_.show_min_max_step(0, UINT64_MAX, 1);

	set_capture_state(pv::Session::Stopped);

	configure_button_.setIcon(QIcon::fromTheme("configure",
		QIcon(":/icons/configure.png")));

	channels_button_.setIcon(QIcon::fromTheme("channels",
		QIcon(":/icons/channels.svg")));

	run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

	addWidget(&device_selector_);
	configure_button_action_ = addWidget(&configure_button_);
	addWidget(&channels_button_);
	addWidget(&sample_count_);
	addWidget(&sample_rate_);

	addWidget(&run_stop_button_);

	sample_count_.installEventFilter(this);
	sample_rate_.installEventFilter(this);
}

void SamplingBar::set_device_list(
	const std::list< std::pair<std::shared_ptr<sigrok::Device>, std::string> > &devices,
	shared_ptr<Device> selected)
{
	int selected_index = -1;

	assert(selected);

	updating_device_selector_ = true;

	device_selector_.clear();

	for (auto entry : devices) {
		auto device = entry.first;
		auto display_name = entry.second;

		assert(device);

		if (selected == device)
			selected_index = device_selector_.count();

		device_selector_.addItem(display_name.c_str(),
			qVariantFromValue(device));
	}

	// The selected device should have been in the list
	assert(selected_index != -1);
	device_selector_.setCurrentIndex(selected_index);

	update_device_config_widgets();

	updating_device_selector_ = false;
}

shared_ptr<Device> SamplingBar::get_selected_device() const
{
	const int index = device_selector_.currentIndex();
	if (index < 0)
		return shared_ptr<Device>();

	return device_selector_.itemData(index).value<shared_ptr<Device>>();
}

void SamplingBar::set_capture_state(pv::Session::capture_state state)
{
	const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
	run_stop_button_.setIcon(*icons[state]);
	run_stop_button_.setText((state == pv::Session::Stopped) ?
		tr("Run") : tr("Stop"));
	run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space));
}

void SamplingBar::update_sample_rate_selector()
{
	Glib::VariantContainerBase gvar_dict;
	GVariant *gvar_list;
	const uint64_t *elements = NULL;
	gsize num_elements;

	if (updating_sample_rate_)
		return;

	const shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	assert(!updating_sample_rate_);
	updating_sample_rate_ = true;

	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
	const auto iter = keys.find(ConfigKey::SAMPLERATE);
	if (iter != keys.end() &&
		(*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
		gvar_dict = device->config_list(ConfigKey::SAMPLERATE);
	} else {
		sample_rate_.show_none();
		updating_sample_rate_ = false;
		return;
	}

	if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
			"samplerate-steps", G_VARIANT_TYPE("at"))))
	{
		elements = (const uint64_t *)g_variant_get_fixed_array(
				gvar_list, &num_elements, sizeof(uint64_t));

		const uint64_t min = elements[0];
		const uint64_t max = elements[1];
		const uint64_t step = elements[2];

		g_variant_unref(gvar_list);

		assert(min > 0);
		assert(max > 0);
		assert(max > min);
		assert(step > 0);

		if (step == 1)
			sample_rate_.show_125_list(min, max);
		else
		{
			// When the step is not 1, we cam't make a 1-2-5-10
			// list of sample rates, because we may not be able to
			// make round numbers. Therefore in this case, show a
			// spin box.
			sample_rate_.show_min_max_step(min, max, step);
		}
	}
	else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
			"samplerates", G_VARIANT_TYPE("at"))))
	{
		elements = (const uint64_t *)g_variant_get_fixed_array(
				gvar_list, &num_elements, sizeof(uint64_t));
		sample_rate_.show_list(elements, num_elements);
		g_variant_unref(gvar_list);
	}
	updating_sample_rate_ = false;

	update_sample_rate_selector_value();
}

void SamplingBar::update_sample_rate_selector_value()
{
	if (updating_sample_rate_)
		return;

	const shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	try {
		auto gvar = device->config_get(ConfigKey::SAMPLERATE);
		uint64_t samplerate =
			Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
		assert(!updating_sample_rate_);
		updating_sample_rate_ = true;
		sample_rate_.set_value(samplerate);
		updating_sample_rate_ = false;
	} catch (Error error) {
		qDebug() << "WARNING: Failed to get value of sample rate";
		return;
	}
}

void SamplingBar::update_sample_count_selector()
{
	if (updating_sample_count_)
		return;

	const shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	assert(!updating_sample_count_);
	updating_sample_count_ = true;

	if (!sample_count_supported_)
	{
		sample_count_.show_none();
		updating_sample_count_ = false;
		return;
	}

	uint64_t sample_count = sample_count_.value();
	uint64_t min_sample_count = 0;
	uint64_t max_sample_count = MaxSampleCount;

	if (sample_count == 0)
		sample_count = DefaultSampleCount;

	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
	const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES);
	if (iter != keys.end() &&
		(*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
		auto gvar = device->config_list(ConfigKey::LIMIT_SAMPLES);
		g_variant_get(gvar.gobj(), "(tt)",
			&min_sample_count, &max_sample_count);
	}

	min_sample_count = min(max(min_sample_count, MinSampleCount),
		max_sample_count);

	sample_count_.show_125_list(
		min_sample_count, max_sample_count);

	try {
		auto gvar = device->config_get(ConfigKey::LIMIT_SAMPLES);
		sample_count = g_variant_get_uint64(gvar.gobj());
		if (sample_count == 0)
			sample_count = DefaultSampleCount;
		sample_count = min(max(sample_count, MinSampleCount),
			max_sample_count);
	} catch (Error error) {}

	sample_count_.set_value(sample_count);

	updating_sample_count_ = false;
}

void SamplingBar::update_device_config_widgets()
{
	using namespace pv::popups;

	const shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	// Update the configure popup
	DeviceOptions *const opts = new DeviceOptions(device, this);
	configure_button_action_->setVisible(
		!opts->binding().properties().empty());
	configure_button_.set_popup(opts);

	// Update the channels popup
	Channels *const channels = new Channels(session_, this);
	channels_button_.set_popup(channels);

	// Update supported options.
	sample_count_supported_ = false;

	try {
		for (auto entry : device->config_keys(ConfigKey::DEVICE_OPTIONS))
		{
			auto key = entry.first;
			auto capabilities = entry.second;
			switch (key->id()) {
			case SR_CONF_LIMIT_SAMPLES:
				if (capabilities.count(Capability::SET))
					sample_count_supported_ = true;
				break;
			case SR_CONF_LIMIT_FRAMES:
				if (capabilities.count(Capability::SET))
				{
					device->config_set(ConfigKey::LIMIT_FRAMES,
						Glib::Variant<guint64>::create(1));
					on_config_changed();
				}
				break;
			default:
				break;
			}
		}
	} catch (Error error) {}

	// Add notification of reconfigure events
	disconnect(this, SLOT(on_config_changed()));
	connect(&opts->binding(), SIGNAL(config_changed()),
		this, SLOT(on_config_changed()));

	// Update sweep timing widgets.
	update_sample_count_selector();
	update_sample_rate_selector();
}

void SamplingBar::commit_sample_count()
{
	uint64_t sample_count = 0;

	if (updating_sample_count_)
		return;

	const shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	sample_count = sample_count_.value();

	// Set the sample count
	assert(!updating_sample_count_);
	updating_sample_count_ = true;
	if (sample_count_supported_)
	{
		try {
			device->config_set(ConfigKey::LIMIT_SAMPLES,
				Glib::Variant<guint64>::create(sample_count));
			on_config_changed();
		} catch (Error error) {
			qDebug() << "Failed to configure sample count.";
			return;
		}
	}
	updating_sample_count_ = false;
}

void SamplingBar::commit_sample_rate()
{
	uint64_t sample_rate = 0;

	if (updating_sample_rate_)
		return;

	const shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	sample_rate = sample_rate_.value();
	if (sample_rate == 0)
		return;

	// Set the samplerate
	assert(!updating_sample_rate_);
	updating_sample_rate_ = true;
	try {
		device->config_set(ConfigKey::SAMPLERATE,
			Glib::Variant<guint64>::create(sample_rate));
		on_config_changed();
	} catch (Error error) {
		qDebug() << "Failed to configure samplerate.";
		return;
	}
	updating_sample_rate_ = false;
}

void SamplingBar::on_device_selected()
{
	if (updating_device_selector_)
		return;

	shared_ptr<Device> device = get_selected_device();
	if (!device)
		return;

	session_.set_device(device);

	update_device_config_widgets();
}

void SamplingBar::on_sample_count_changed()
{
	commit_sample_count();
}

void SamplingBar::on_sample_rate_changed()
{
	commit_sample_rate();
}

void SamplingBar::on_run_stop()
{
	commit_sample_count();
	commit_sample_rate();	
	main_window_.run_stop();
}

void SamplingBar::on_config_changed()
{
	commit_sample_count();
	update_sample_count_selector();	
	commit_sample_rate();	
	update_sample_rate_selector();
}

bool SamplingBar::eventFilter(QObject *watched, QEvent *event)
{
	if ((watched == &sample_count_ || watched == &sample_rate_) &&
		(event->type() == QEvent::ToolTip)) {
		double sec = (double)sample_count_.value() / sample_rate_.value();
		QHelpEvent *help_event = static_cast<QHelpEvent*>(event);

		QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec));
		QToolTip::showText(help_event->globalPos(), str);

		return true;
	}

	return false;
}

} // namespace toolbars
} // namespace pv
Commit	Line	Data
d4984fe7	1	/*
b3f22de0	2	* This file is part of the PulseView project.
d4984fe7 JH	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
09f5d123	21	#include <extdef.h>
dde1a563	22
09f5d123	23	#include <assert.h>
215f9499	24
dde1a563	25	#include <QAction>
48888313	26	#include <QDebug>
40065ab6 JS	27	#include <QHelpEvent>
40065ab6 JS	28	#include <QToolTip>
dde1a563	29
2acdb232	30	#include "samplingbar.hpp"
d4984fe7	31
2acdb232	32	#include <pv/devicemanager.hpp>
4e7f5ba8	33	#include <pv/mainwindow.hpp>
2acdb232 JH	34	#include <pv/popups/deviceoptions.hpp>
	35	#include <pv/popups/channels.hpp>
	36	#include <pv/util.hpp>
cdb50f67	37
e8d00928 ML	38	#include <libsigrok/libsigrok.hpp>
e8d00928 ML	39
19adbc2c	40	using std::map;
e8d00928	41	using std::vector;
b50ef520 JH	42	using std::max;
b50ef520 JH	43	using std::min;
f9abf97e	44	using std::shared_ptr;
819f4c25	45	using std::string;
dd63af74	46
e8d00928 ML	47	using sigrok::Capability;
	48	using sigrok::ConfigKey;
	49	using sigrok::Device;
	50	using sigrok::Error;
	51
51e77110	52	namespace pv {
f4c92e1c	53	namespace toolbars {
51e77110	54
b50ef520 JH	55	const uint64_t SamplingBar::MinSampleCount = 100ULL;
	56	const uint64_t SamplingBar::MaxSampleCount = 1000000000000ULL;
	57	const uint64_t SamplingBar::DefaultSampleCount = 1000000;
09f5d123	58
2b81ae46	59	SamplingBar::SamplingBar(Session &session, MainWindow &main_window) :
4e7f5ba8	60	QToolBar("Sampling Bar", &main_window),
8dbbc7f0	61	session_(session),
4e7f5ba8	62	main_window_(main_window),
8dbbc7f0 JH	63	device_selector_(this),
	64	updating_device_selector_(false),
	65	configure_button_(this),
	66	configure_button_action_(NULL),
	67	channels_button_(this),
	68	sample_count_(" samples", this),
	69	sample_rate_("Hz", this),
	70	updating_sample_rate_(false),
	71	updating_sample_count_(false),
	72	sample_count_supported_(false),
	73	icon_red_(":/icons/status-red.svg"),
	74	icon_green_(":/icons/status-green.svg"),
	75	icon_grey_(":/icons/status-grey.svg"),
	76	run_stop_button_(this)
6fb67b27	77	{
0c7cdea2 SA	78	setObjectName(QString::fromUtf8("SamplingBar"));
0c7cdea2 SA	79
8dbbc7f0	80	connect(&run_stop_button_, SIGNAL(clicked()),
9f3d12f3	81	this, SLOT(on_run_stop()));
8dbbc7f0	82	connect(&device_selector_, SIGNAL(currentIndexChanged (int)),
dde1a563	83	this, SLOT(on_device_selected()));
8dbbc7f0	84	connect(&sample_count_, SIGNAL(value_changed()),
124d97de	85	this, SLOT(on_sample_count_changed()));
8dbbc7f0	86	connect(&sample_rate_, SIGNAL(value_changed()),
1198b887	87	this, SLOT(on_sample_rate_changed()));
dde1a563	88
8dbbc7f0	89	sample_count_.show_min_max_step(0, UINT64_MAX, 1);
215f9499	90
2b81ae46	91	set_capture_state(pv::Session::Stopped);
274d4f13	92
8dbbc7f0	93	configure_button_.setIcon(QIcon::fromTheme("configure",
688ef645	94	QIcon(":/icons/configure.png")));
b7b659aa	95
8dbbc7f0	96	channels_button_.setIcon(QIcon::fromTheme("channels",
6ac6242b	97	QIcon(":/icons/channels.svg")));
cdb50f67	98
8dbbc7f0	99	run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
f5798068	100
8dbbc7f0 JH	101	addWidget(&device_selector_);
	102	configure_button_action_ = addWidget(&configure_button_);
	103	addWidget(&channels_button_);
	104	addWidget(&sample_count_);
	105	addWidget(&sample_rate_);
6fb67b27	106
8dbbc7f0	107	addWidget(&run_stop_button_);
40065ab6	108
8dbbc7f0 JH	109	sample_count_.installEventFilter(this);
8dbbc7f0 JH	110	sample_rate_.installEventFilter(this);
6fb67b27 JH	111	}
6fb67b27 JH	112
18203d86	113	void SamplingBar::set_device_list(
4fe06f49	114	const std::list< std::pair<std::shared_ptr<sigrok::Device>, std::string> > &devices,
e8d00928	115	shared_ptr<Device> selected)
18203d86	116	{
e95e8563 JH	117	int selected_index = -1;
	118
	119	assert(selected);
	120
8dbbc7f0	121	updating_device_selector_ = true;
95237c18	122
8dbbc7f0	123	device_selector_.clear();
18203d86	124
4fe06f49	125	for (auto entry : devices) {
e8d00928	126	auto device = entry.first;
4fe06f49	127	auto display_name = entry.second;
19adbc2c	128
e8d00928 ML	129	assert(device);
	130
	131	if (selected == device)
8dbbc7f0	132	selected_index = device_selector_.count();
e95e8563	133
8dbbc7f0	134	device_selector_.addItem(display_name.c_str(),
e8d00928	135	qVariantFromValue(device));
18203d86 JH	136	}
18203d86 JH	137
e95e8563 JH	138	// The selected device should have been in the list
e95e8563 JH	139	assert(selected_index != -1);
8dbbc7f0	140	device_selector_.setCurrentIndex(selected_index);
e95e8563 JH	141
	142	update_device_config_widgets();
	143
8dbbc7f0	144	updating_device_selector_ = false;
18203d86 JH	145	}
18203d86 JH	146
e8d00928	147	shared_ptr<Device> SamplingBar::get_selected_device() const
d4984fe7	148	{
8dbbc7f0	149	const int index = device_selector_.currentIndex();
333d5bbc	150	if (index < 0)
e8d00928	151	return shared_ptr<Device>();
6fb67b27	152
8dbbc7f0	153	return device_selector_.itemData(index).value<shared_ptr<Device>>();
6fb67b27 JH	154	}
6fb67b27 JH	155
2b81ae46	156	void SamplingBar::set_capture_state(pv::Session::capture_state state)
6ac96c2e	157	{
8dbbc7f0 JH	158	const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
8dbbc7f0 JH	159	run_stop_button_.setIcon(*icons[state]);
2b81ae46	160	run_stop_button_.setText((state == pv::Session::Stopped) ?
2b49eeb0	161	tr("Run") : tr("Stop"));
8dbbc7f0	162	run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space));
6ac96c2e JH	163	}
6ac96c2e JH	164
dde1a563 JH	165	void SamplingBar::update_sample_rate_selector()
dde1a563 JH	166	{
e8d00928 ML	167	Glib::VariantContainerBase gvar_dict;
e8d00928 ML	168	GVariant *gvar_list;
488f5d3f BV	169	const uint64_t *elements = NULL;
488f5d3f BV	170	gsize num_elements;
dde1a563	171
8dbbc7f0	172	if (updating_sample_rate_)
3d4f16af JH	173	return;
3d4f16af JH	174
e8d00928 ML	175	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	176	if (!device)
ef4d0201 JH	177	return;
ef4d0201 JH	178
8dbbc7f0 JH	179	assert(!updating_sample_rate_);
8dbbc7f0 JH	180	updating_sample_rate_ = true;
1198b887	181
ed1d9d81 JH	182	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
	183	const auto iter = keys.find(ConfigKey::SAMPLERATE);
	184	if (iter != keys.end() &&
	185	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
e8d00928	186	gvar_dict = device->config_list(ConfigKey::SAMPLERATE);
ed1d9d81	187	} else {
8dbbc7f0 JH	188	sample_rate_.show_none();
8dbbc7f0 JH	189	updating_sample_rate_ = false;
dde1a563	190	return;
1198b887	191	}
dde1a563	192
e8d00928	193	if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
1198b887 JH	194	"samplerate-steps", G_VARIANT_TYPE("at"))))
1198b887 JH	195	{
488f5d3f BV	196	elements = (const uint64_t *)g_variant_get_fixed_array(
488f5d3f BV	197	gvar_list, &num_elements, sizeof(uint64_t));
aafe53af JH	198
	199	const uint64_t min = elements[0];
	200	const uint64_t max = elements[1];
	201	const uint64_t step = elements[2];
	202
488f5d3f	203	g_variant_unref(gvar_list);
aafe53af JH	204
	205	assert(min > 0);
	206	assert(max > 0);
	207	assert(max > min);
	208	assert(step > 0);
	209
	210	if (step == 1)
8dbbc7f0	211	sample_rate_.show_125_list(min, max);
aafe53af JH	212	else
	213	{
	214	// When the step is not 1, we cam't make a 1-2-5-10
	215	// list of sample rates, because we may not be able to
	216	// make round numbers. Therefore in this case, show a
	217	// spin box.
8dbbc7f0	218	sample_rate_.show_min_max_step(min, max, step);
aafe53af	219	}
dde1a563	220	}
e8d00928	221	else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
488f5d3f	222	"samplerates", G_VARIANT_TYPE("at"))))
dde1a563	223	{
488f5d3f BV	224	elements = (const uint64_t *)g_variant_get_fixed_array(
488f5d3f BV	225	gvar_list, &num_elements, sizeof(uint64_t));
8dbbc7f0	226	sample_rate_.show_list(elements, num_elements);
488f5d3f	227	g_variant_unref(gvar_list);
dde1a563	228	}
8dbbc7f0	229	updating_sample_rate_ = false;
48888313 JH	230
	231	update_sample_rate_selector_value();
	232	}
	233
	234	void SamplingBar::update_sample_rate_selector_value()
	235	{
8dbbc7f0	236	if (updating_sample_rate_)
3d4f16af JH	237	return;
3d4f16af JH	238
e8d00928 ML	239	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	240	if (!device)
19adbc2c JH	241	return;
19adbc2c JH	242
e8d00928 ML	243	try {
	244	auto gvar = device->config_get(ConfigKey::SAMPLERATE);
	245	uint64_t samplerate =
15289d5c	246	Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
8dbbc7f0 JH	247	assert(!updating_sample_rate_);
	248	updating_sample_rate_ = true;
	249	sample_rate_.set_value(samplerate);
	250	updating_sample_rate_ = false;
e8d00928	251	} catch (Error error) {
8dd44190	252	qDebug() << "WARNING: Failed to get value of sample rate";
eb4008a6 JH	253	return;
eb4008a6 JH	254	}
48888313 JH	255	}
48888313 JH	256
85756012 ML	257	void SamplingBar::update_sample_count_selector()
85756012 ML	258	{
8dbbc7f0	259	if (updating_sample_count_)
3d4f16af JH	260	return;
3d4f16af JH	261
e8d00928 ML	262	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	263	if (!device)
19adbc2c JH	264	return;
19adbc2c JH	265
8dbbc7f0 JH	266	assert(!updating_sample_count_);
8dbbc7f0 JH	267	updating_sample_count_ = true;
85756012	268
3e7636f9	269	if (!sample_count_supported_)
df3c1aa3	270	{
3e7636f9 JH	271	sample_count_.show_none();
	272	updating_sample_count_ = false;
	273	return;
	274	}
b50ef520	275
3e7636f9 JH	276	uint64_t sample_count = sample_count_.value();
	277	uint64_t min_sample_count = 0;
	278	uint64_t max_sample_count = MaxSampleCount;
3cbffdcf	279
3e7636f9 JH	280	if (sample_count == 0)
3e7636f9 JH	281	sample_count = DefaultSampleCount;
b50ef520	282
ed1d9d81 JH	283	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
	284	const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES);
	285	if (iter != keys.end() &&
	286	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
3e7636f9 JH	287	auto gvar = device->config_list(ConfigKey::LIMIT_SAMPLES);
	288	g_variant_get(gvar.gobj(), "(tt)",
	289	&min_sample_count, &max_sample_count);
ed1d9d81	290	}
1d04852f	291
3e7636f9 JH	292	min_sample_count = min(max(min_sample_count, MinSampleCount),
3e7636f9 JH	293	max_sample_count);
b50ef520	294
3e7636f9 JH	295	sample_count_.show_125_list(
3e7636f9 JH	296	min_sample_count, max_sample_count);
b50ef520	297
3e7636f9 JH	298	try {
	299	auto gvar = device->config_get(ConfigKey::LIMIT_SAMPLES);
	300	sample_count = g_variant_get_uint64(gvar.gobj());
	301	if (sample_count == 0)
	302	sample_count = DefaultSampleCount;
	303	sample_count = min(max(sample_count, MinSampleCount),
	304	max_sample_count);
	305	} catch (Error error) {}
	306
	307	sample_count_.set_value(sample_count);
df3c1aa3	308
8dbbc7f0	309	updating_sample_count_ = false;
85756012 ML	310	}
85756012 ML	311
e95e8563 JH	312	void SamplingBar::update_device_config_widgets()
e95e8563 JH	313	{
e95e8563 JH	314	using namespace pv::popups;
e95e8563 JH	315
e8d00928 ML	316	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	317	if (!device)
e95e8563 JH	318	return;
	319
	320	// Update the configure popup
e8d00928	321	DeviceOptions *const opts = new DeviceOptions(device, this);
8dbbc7f0	322	configure_button_action_->setVisible(
e95e8563	323	!opts->binding().properties().empty());
8dbbc7f0	324	configure_button_.set_popup(opts);
e95e8563	325
6ac6242b	326	// Update the channels popup
8dbbc7f0 JH	327	Channels *const channels = new Channels(session_, this);
8dbbc7f0 JH	328	channels_button_.set_popup(channels);
e95e8563 JH	329
e95e8563 JH	330	// Update supported options.
8dbbc7f0	331	sample_count_supported_ = false;
e95e8563	332
e8d00928 ML	333	try {
e8d00928 ML	334	for (auto entry : device->config_keys(ConfigKey::DEVICE_OPTIONS))
e95e8563	335	{
e8d00928 ML	336	auto key = entry.first;
	337	auto capabilities = entry.second;
	338	switch (key->id()) {
e95e8563	339	case SR_CONF_LIMIT_SAMPLES:
e8d00928	340	if (capabilities.count(Capability::SET))
8dbbc7f0	341	sample_count_supported_ = true;
e95e8563 JH	342	break;
e95e8563 JH	343	case SR_CONF_LIMIT_FRAMES:
e8d00928 ML	344	if (capabilities.count(Capability::SET))
	345	{
	346	device->config_set(ConfigKey::LIMIT_FRAMES,
15289d5c	347	Glib::Variant<guint64>::create(1));
e8d00928 ML	348	on_config_changed();
	349	}
	350	break;
	351	default:
e95e8563 JH	352	break;
	353	}
	354	}
e8d00928	355	} catch (Error error) {}
e95e8563 JH	356
	357	// Add notification of reconfigure events
	358	disconnect(this, SLOT(on_config_changed()));
e8d00928	359	connect(&opts->binding(), SIGNAL(config_changed()),
e95e8563 JH	360	this, SLOT(on_config_changed()));
	361
	362	// Update sweep timing widgets.
	363	update_sample_count_selector();
	364	update_sample_rate_selector();
	365	}
	366
124d97de ML	367	void SamplingBar::commit_sample_count()
	368	{
	369	uint64_t sample_count = 0;
	370
8dbbc7f0	371	if (updating_sample_count_)
3d4f16af JH	372	return;
3d4f16af JH	373
e8d00928 ML	374	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	375	if (!device)
19adbc2c JH	376	return;
19adbc2c JH	377
8dbbc7f0	378	sample_count = sample_count_.value();
124d97de ML	379
124d97de ML	380	// Set the sample count
8dbbc7f0 JH	381	assert(!updating_sample_count_);
	382	updating_sample_count_ = true;
	383	if (sample_count_supported_)
e8d00928 ML	384	{
	385	try {
	386	device->config_set(ConfigKey::LIMIT_SAMPLES,
15289d5c	387	Glib::Variant<guint64>::create(sample_count));
e8d00928 ML	388	on_config_changed();
	389	} catch (Error error) {
	390	qDebug() << "Failed to configure sample count.";
	391	return;
	392	}
124d97de	393	}
8dbbc7f0	394	updating_sample_count_ = false;
124d97de ML	395	}
124d97de ML	396
48888313 JH	397	void SamplingBar::commit_sample_rate()
	398	{
	399	uint64_t sample_rate = 0;
	400
8dbbc7f0	401	if (updating_sample_rate_)
3d4f16af JH	402	return;
3d4f16af JH	403
e8d00928 ML	404	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	405	if (!device)
19adbc2c JH	406	return;
19adbc2c JH	407
8dbbc7f0	408	sample_rate = sample_rate_.value();
f9541bde JH	409	if (sample_rate == 0)
	410	return;
	411
48888313	412	// Set the samplerate
8dbbc7f0 JH	413	assert(!updating_sample_rate_);
8dbbc7f0 JH	414	updating_sample_rate_ = true;
e8d00928 ML	415	try {
e8d00928 ML	416	device->config_set(ConfigKey::SAMPLERATE,
15289d5c	417	Glib::Variant<guint64>::create(sample_rate));
e8d00928 ML	418	on_config_changed();
e8d00928 ML	419	} catch (Error error) {
48888313 JH	420	qDebug() << "Failed to configure samplerate.";
	421	return;
	422	}
8dbbc7f0	423	updating_sample_rate_ = false;
dde1a563 JH	424	}
	425
	426	void SamplingBar::on_device_selected()
	427	{
8dbbc7f0	428	if (updating_device_selector_)
95237c18 JH	429	return;
95237c18 JH	430
e8d00928 ML	431	shared_ptr<Device> device = get_selected_device();
e8d00928 ML	432	if (!device)
19adbc2c JH	433	return;
19adbc2c JH	434
8dbbc7f0	435	session_.set_device(device);
51d4a9ab	436
e95e8563	437	update_device_config_widgets();
dde1a563	438	}
51e77110	439
124d97de ML	440	void SamplingBar::on_sample_count_changed()
124d97de ML	441	{
3d4f16af	442	commit_sample_count();
124d97de ML	443	}
124d97de ML	444
48888313 JH	445	void SamplingBar::on_sample_rate_changed()
48888313 JH	446	{
3d4f16af	447	commit_sample_rate();
48888313 JH	448	}
48888313 JH	449
9f3d12f3 JH	450	void SamplingBar::on_run_stop()
9f3d12f3 JH	451	{
b50ef520	452	commit_sample_count();
9f3d12f3	453	commit_sample_rate();
4e7f5ba8	454	main_window_.run_stop();
9f3d12f3 JH	455	}
9f3d12f3 JH	456
82afd5e3 JH	457	void SamplingBar::on_config_changed()
	458	{
	459	commit_sample_count();
	460	update_sample_count_selector();
	461	commit_sample_rate();
	462	update_sample_rate_selector();
	463	}
	464
40065ab6 JS	465	bool SamplingBar::eventFilter(QObject watched, QEvent event)
40065ab6 JS	466	{
8dbbc7f0	467	if ((watched == &sample_count_ \|\| watched == &sample_rate_) &&
40065ab6	468	(event->type() == QEvent::ToolTip)) {
8dbbc7f0	469	double sec = (double)sample_count_.value() / sample_rate_.value();
40065ab6	470	QHelpEvent help_event = static_cast<QHelpEvent>(event);
62974f45 JS	471
62974f45 JS	472	QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec));
40065ab6 JS	473	QToolTip::showText(help_event->globalPos(), str);
	474
	475	return true;
	476	}
	477
	478	return false;
	479	}
	480
f4c92e1c	481	} // namespace toolbars
51e77110	482	} // namespace pv