[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/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(SigSession &session, QWidget *parent) :
	QToolBar("Sampling Bar", parent),
	session_(session),
	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::SigSession::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::SigSession::capture_state state)
{
	const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
	run_stop_button_.setIcon(*icons[state]);
	run_stop_button_.setText((state == pv::SigSession::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();	
	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 JH	32	#include <pv/devicemanager.hpp>
	33	#include <pv/popups/deviceoptions.hpp>
	34	#include <pv/popups/channels.hpp>
	35	#include <pv/util.hpp>
cdb50f67	36
e8d00928 ML	37	#include <libsigrok/libsigrok.hpp>
e8d00928 ML	38
19adbc2c	39	using std::map;
e8d00928	40	using std::vector;
b50ef520 JH	41	using std::max;
b50ef520 JH	42	using std::min;
f9abf97e	43	using std::shared_ptr;
819f4c25	44	using std::string;
dd63af74	45
e8d00928 ML	46	using sigrok::Capability;
	47	using sigrok::ConfigKey;
	48	using sigrok::Device;
	49	using sigrok::Error;
	50
51e77110	51	namespace pv {
f4c92e1c	52	namespace toolbars {
51e77110	53
b50ef520 JH	54	const uint64_t SamplingBar::MinSampleCount = 100ULL;
	55	const uint64_t SamplingBar::MaxSampleCount = 1000000000000ULL;
	56	const uint64_t SamplingBar::DefaultSampleCount = 1000000;
09f5d123	57
aca00b1e	58	SamplingBar::SamplingBar(SigSession &session, QWidget *parent) :
6fb67b27	59	QToolBar("Sampling Bar", parent),
8dbbc7f0 JH	60	session_(session),
	61	device_selector_(this),
	62	updating_device_selector_(false),
	63	configure_button_(this),
	64	configure_button_action_(NULL),
	65	channels_button_(this),
	66	sample_count_(" samples", this),
	67	sample_rate_("Hz", this),
	68	updating_sample_rate_(false),
	69	updating_sample_count_(false),
	70	sample_count_supported_(false),
	71	icon_red_(":/icons/status-red.svg"),
	72	icon_green_(":/icons/status-green.svg"),
	73	icon_grey_(":/icons/status-grey.svg"),
	74	run_stop_button_(this)
6fb67b27	75	{
0c7cdea2 SA	76	setObjectName(QString::fromUtf8("SamplingBar"));
0c7cdea2 SA	77
8dbbc7f0	78	connect(&run_stop_button_, SIGNAL(clicked()),
9f3d12f3	79	this, SLOT(on_run_stop()));
8dbbc7f0	80	connect(&device_selector_, SIGNAL(currentIndexChanged (int)),
dde1a563	81	this, SLOT(on_device_selected()));
8dbbc7f0	82	connect(&sample_count_, SIGNAL(value_changed()),
124d97de	83	this, SLOT(on_sample_count_changed()));
8dbbc7f0	84	connect(&sample_rate_, SIGNAL(value_changed()),
1198b887	85	this, SLOT(on_sample_rate_changed()));
dde1a563	86
8dbbc7f0	87	sample_count_.show_min_max_step(0, UINT64_MAX, 1);
215f9499	88
2b49eeb0	89	set_capture_state(pv::SigSession::Stopped);
274d4f13	90
8dbbc7f0	91	configure_button_.setIcon(QIcon::fromTheme("configure",
688ef645	92	QIcon(":/icons/configure.png")));
b7b659aa	93
8dbbc7f0	94	channels_button_.setIcon(QIcon::fromTheme("channels",
6ac6242b	95	QIcon(":/icons/channels.svg")));
cdb50f67	96
8dbbc7f0	97	run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
f5798068	98
8dbbc7f0 JH	99	addWidget(&device_selector_);
	100	configure_button_action_ = addWidget(&configure_button_);
	101	addWidget(&channels_button_);
	102	addWidget(&sample_count_);
	103	addWidget(&sample_rate_);
6fb67b27	104
8dbbc7f0	105	addWidget(&run_stop_button_);
40065ab6	106
8dbbc7f0 JH	107	sample_count_.installEventFilter(this);
8dbbc7f0 JH	108	sample_rate_.installEventFilter(this);
6fb67b27 JH	109	}
6fb67b27 JH	110
18203d86	111	void SamplingBar::set_device_list(
4fe06f49	112	const std::list< std::pair<std::shared_ptr<sigrok::Device>, std::string> > &devices,
e8d00928	113	shared_ptr<Device> selected)
18203d86	114	{
e95e8563 JH	115	int selected_index = -1;
	116
	117	assert(selected);
	118
8dbbc7f0	119	updating_device_selector_ = true;
95237c18	120
8dbbc7f0	121	device_selector_.clear();
18203d86	122
4fe06f49	123	for (auto entry : devices) {
e8d00928	124	auto device = entry.first;
4fe06f49	125	auto display_name = entry.second;
19adbc2c	126
e8d00928 ML	127	assert(device);
	128
	129	if (selected == device)
8dbbc7f0	130	selected_index = device_selector_.count();
e95e8563	131
8dbbc7f0	132	device_selector_.addItem(display_name.c_str(),
e8d00928	133	qVariantFromValue(device));
18203d86 JH	134	}
18203d86 JH	135
e95e8563 JH	136	// The selected device should have been in the list
e95e8563 JH	137	assert(selected_index != -1);
8dbbc7f0	138	device_selector_.setCurrentIndex(selected_index);
e95e8563 JH	139
	140	update_device_config_widgets();
	141
8dbbc7f0	142	updating_device_selector_ = false;
18203d86 JH	143	}
18203d86 JH	144
e8d00928	145	shared_ptr<Device> SamplingBar::get_selected_device() const
d4984fe7	146	{
8dbbc7f0	147	const int index = device_selector_.currentIndex();
333d5bbc	148	if (index < 0)
e8d00928	149	return shared_ptr<Device>();
6fb67b27	150
8dbbc7f0	151	return device_selector_.itemData(index).value<shared_ptr<Device>>();
6fb67b27 JH	152	}
6fb67b27 JH	153
2b49eeb0	154	void SamplingBar::set_capture_state(pv::SigSession::capture_state state)
6ac96c2e	155	{
8dbbc7f0 JH	156	const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
	157	run_stop_button_.setIcon(*icons[state]);
	158	run_stop_button_.setText((state == pv::SigSession::Stopped) ?
2b49eeb0	159	tr("Run") : tr("Stop"));
8dbbc7f0	160	run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space));
6ac96c2e JH	161	}
6ac96c2e JH	162
dde1a563 JH	163	void SamplingBar::update_sample_rate_selector()
dde1a563 JH	164	{
e8d00928 ML	165	Glib::VariantContainerBase gvar_dict;
e8d00928 ML	166	GVariant *gvar_list;
488f5d3f BV	167	const uint64_t *elements = NULL;
488f5d3f BV	168	gsize num_elements;
dde1a563	169
8dbbc7f0	170	if (updating_sample_rate_)
3d4f16af JH	171	return;
3d4f16af JH	172
e8d00928 ML	173	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	174	if (!device)
ef4d0201 JH	175	return;
ef4d0201 JH	176
8dbbc7f0 JH	177	assert(!updating_sample_rate_);
8dbbc7f0 JH	178	updating_sample_rate_ = true;
1198b887	179
ed1d9d81 JH	180	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
	181	const auto iter = keys.find(ConfigKey::SAMPLERATE);
	182	if (iter != keys.end() &&
	183	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
e8d00928	184	gvar_dict = device->config_list(ConfigKey::SAMPLERATE);
ed1d9d81	185	} else {
8dbbc7f0 JH	186	sample_rate_.show_none();
8dbbc7f0 JH	187	updating_sample_rate_ = false;
dde1a563	188	return;
1198b887	189	}
dde1a563	190
e8d00928	191	if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
1198b887 JH	192	"samplerate-steps", G_VARIANT_TYPE("at"))))
1198b887 JH	193	{
488f5d3f BV	194	elements = (const uint64_t *)g_variant_get_fixed_array(
488f5d3f BV	195	gvar_list, &num_elements, sizeof(uint64_t));
aafe53af JH	196
	197	const uint64_t min = elements[0];
	198	const uint64_t max = elements[1];
	199	const uint64_t step = elements[2];
	200
488f5d3f	201	g_variant_unref(gvar_list);
aafe53af JH	202
	203	assert(min > 0);
	204	assert(max > 0);
	205	assert(max > min);
	206	assert(step > 0);
	207
	208	if (step == 1)
8dbbc7f0	209	sample_rate_.show_125_list(min, max);
aafe53af JH	210	else
	211	{
	212	// When the step is not 1, we cam't make a 1-2-5-10
	213	// list of sample rates, because we may not be able to
	214	// make round numbers. Therefore in this case, show a
	215	// spin box.
8dbbc7f0	216	sample_rate_.show_min_max_step(min, max, step);
aafe53af	217	}
dde1a563	218	}
e8d00928	219	else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
488f5d3f	220	"samplerates", G_VARIANT_TYPE("at"))))
dde1a563	221	{
488f5d3f BV	222	elements = (const uint64_t *)g_variant_get_fixed_array(
488f5d3f BV	223	gvar_list, &num_elements, sizeof(uint64_t));
8dbbc7f0	224	sample_rate_.show_list(elements, num_elements);
488f5d3f	225	g_variant_unref(gvar_list);
dde1a563	226	}
8dbbc7f0	227	updating_sample_rate_ = false;
48888313 JH	228
	229	update_sample_rate_selector_value();
	230	}
	231
	232	void SamplingBar::update_sample_rate_selector_value()
	233	{
8dbbc7f0	234	if (updating_sample_rate_)
3d4f16af JH	235	return;
3d4f16af JH	236
e8d00928 ML	237	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	238	if (!device)
19adbc2c JH	239	return;
19adbc2c JH	240
e8d00928 ML	241	try {
	242	auto gvar = device->config_get(ConfigKey::SAMPLERATE);
	243	uint64_t samplerate =
15289d5c	244	Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
8dbbc7f0 JH	245	assert(!updating_sample_rate_);
	246	updating_sample_rate_ = true;
	247	sample_rate_.set_value(samplerate);
	248	updating_sample_rate_ = false;
e8d00928	249	} catch (Error error) {
8dd44190	250	qDebug() << "WARNING: Failed to get value of sample rate";
eb4008a6 JH	251	return;
eb4008a6 JH	252	}
48888313 JH	253	}
48888313 JH	254
85756012 ML	255	void SamplingBar::update_sample_count_selector()
85756012 ML	256	{
8dbbc7f0	257	if (updating_sample_count_)
3d4f16af JH	258	return;
3d4f16af JH	259
e8d00928 ML	260	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	261	if (!device)
19adbc2c JH	262	return;
19adbc2c JH	263
8dbbc7f0 JH	264	assert(!updating_sample_count_);
8dbbc7f0 JH	265	updating_sample_count_ = true;
85756012	266
3e7636f9	267	if (!sample_count_supported_)
df3c1aa3	268	{
3e7636f9 JH	269	sample_count_.show_none();
	270	updating_sample_count_ = false;
	271	return;
	272	}
b50ef520	273
3e7636f9 JH	274	uint64_t sample_count = sample_count_.value();
	275	uint64_t min_sample_count = 0;
	276	uint64_t max_sample_count = MaxSampleCount;
3cbffdcf	277
3e7636f9 JH	278	if (sample_count == 0)
3e7636f9 JH	279	sample_count = DefaultSampleCount;
b50ef520	280
ed1d9d81 JH	281	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
	282	const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES);
	283	if (iter != keys.end() &&
	284	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
3e7636f9 JH	285	auto gvar = device->config_list(ConfigKey::LIMIT_SAMPLES);
	286	g_variant_get(gvar.gobj(), "(tt)",
	287	&min_sample_count, &max_sample_count);
ed1d9d81	288	}
1d04852f	289
3e7636f9 JH	290	min_sample_count = min(max(min_sample_count, MinSampleCount),
3e7636f9 JH	291	max_sample_count);
b50ef520	292
3e7636f9 JH	293	sample_count_.show_125_list(
3e7636f9 JH	294	min_sample_count, max_sample_count);
b50ef520	295
3e7636f9 JH	296	try {
	297	auto gvar = device->config_get(ConfigKey::LIMIT_SAMPLES);
	298	sample_count = g_variant_get_uint64(gvar.gobj());
	299	if (sample_count == 0)
	300	sample_count = DefaultSampleCount;
	301	sample_count = min(max(sample_count, MinSampleCount),
	302	max_sample_count);
	303	} catch (Error error) {}
	304
	305	sample_count_.set_value(sample_count);
df3c1aa3	306
8dbbc7f0	307	updating_sample_count_ = false;
85756012 ML	308	}
85756012 ML	309
e95e8563 JH	310	void SamplingBar::update_device_config_widgets()
e95e8563 JH	311	{
e95e8563 JH	312	using namespace pv::popups;
e95e8563 JH	313
e8d00928 ML	314	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	315	if (!device)
e95e8563 JH	316	return;
	317
	318	// Update the configure popup
e8d00928	319	DeviceOptions *const opts = new DeviceOptions(device, this);
8dbbc7f0	320	configure_button_action_->setVisible(
e95e8563	321	!opts->binding().properties().empty());
8dbbc7f0	322	configure_button_.set_popup(opts);
e95e8563	323
6ac6242b	324	// Update the channels popup
8dbbc7f0 JH	325	Channels *const channels = new Channels(session_, this);
8dbbc7f0 JH	326	channels_button_.set_popup(channels);
e95e8563 JH	327
e95e8563 JH	328	// Update supported options.
8dbbc7f0	329	sample_count_supported_ = false;
e95e8563	330
e8d00928 ML	331	try {
e8d00928 ML	332	for (auto entry : device->config_keys(ConfigKey::DEVICE_OPTIONS))
e95e8563	333	{
e8d00928 ML	334	auto key = entry.first;
	335	auto capabilities = entry.second;
	336	switch (key->id()) {
e95e8563	337	case SR_CONF_LIMIT_SAMPLES:
e8d00928	338	if (capabilities.count(Capability::SET))
8dbbc7f0	339	sample_count_supported_ = true;
e95e8563 JH	340	break;
e95e8563 JH	341	case SR_CONF_LIMIT_FRAMES:
e8d00928 ML	342	if (capabilities.count(Capability::SET))
	343	{
	344	device->config_set(ConfigKey::LIMIT_FRAMES,
15289d5c	345	Glib::Variant<guint64>::create(1));
e8d00928 ML	346	on_config_changed();
	347	}
	348	break;
	349	default:
e95e8563 JH	350	break;
	351	}
	352	}
e8d00928	353	} catch (Error error) {}
e95e8563 JH	354
	355	// Add notification of reconfigure events
	356	disconnect(this, SLOT(on_config_changed()));
e8d00928	357	connect(&opts->binding(), SIGNAL(config_changed()),
e95e8563 JH	358	this, SLOT(on_config_changed()));
	359
	360	// Update sweep timing widgets.
	361	update_sample_count_selector();
	362	update_sample_rate_selector();
	363	}
	364
124d97de ML	365	void SamplingBar::commit_sample_count()
	366	{
	367	uint64_t sample_count = 0;
	368
8dbbc7f0	369	if (updating_sample_count_)
3d4f16af JH	370	return;
3d4f16af JH	371
e8d00928 ML	372	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	373	if (!device)
19adbc2c JH	374	return;
19adbc2c JH	375
8dbbc7f0	376	sample_count = sample_count_.value();
124d97de ML	377
124d97de ML	378	// Set the sample count
8dbbc7f0 JH	379	assert(!updating_sample_count_);
	380	updating_sample_count_ = true;
	381	if (sample_count_supported_)
e8d00928 ML	382	{
	383	try {
	384	device->config_set(ConfigKey::LIMIT_SAMPLES,
15289d5c	385	Glib::Variant<guint64>::create(sample_count));
e8d00928 ML	386	on_config_changed();
	387	} catch (Error error) {
	388	qDebug() << "Failed to configure sample count.";
	389	return;
	390	}
124d97de	391	}
8dbbc7f0	392	updating_sample_count_ = false;
124d97de ML	393	}
124d97de ML	394
48888313 JH	395	void SamplingBar::commit_sample_rate()
	396	{
	397	uint64_t sample_rate = 0;
	398
8dbbc7f0	399	if (updating_sample_rate_)
3d4f16af JH	400	return;
3d4f16af JH	401
e8d00928 ML	402	const shared_ptr<Device> device = get_selected_device();
e8d00928 ML	403	if (!device)
19adbc2c JH	404	return;
19adbc2c JH	405
8dbbc7f0	406	sample_rate = sample_rate_.value();
f9541bde JH	407	if (sample_rate == 0)
	408	return;
	409
48888313	410	// Set the samplerate
8dbbc7f0 JH	411	assert(!updating_sample_rate_);
8dbbc7f0 JH	412	updating_sample_rate_ = true;
e8d00928 ML	413	try {
e8d00928 ML	414	device->config_set(ConfigKey::SAMPLERATE,
15289d5c	415	Glib::Variant<guint64>::create(sample_rate));
e8d00928 ML	416	on_config_changed();
e8d00928 ML	417	} catch (Error error) {
48888313 JH	418	qDebug() << "Failed to configure samplerate.";
	419	return;
	420	}
8dbbc7f0	421	updating_sample_rate_ = false;
dde1a563 JH	422	}
	423
	424	void SamplingBar::on_device_selected()
	425	{
8dbbc7f0	426	if (updating_device_selector_)
95237c18 JH	427	return;
95237c18 JH	428
e8d00928 ML	429	shared_ptr<Device> device = get_selected_device();
e8d00928 ML	430	if (!device)
19adbc2c JH	431	return;
19adbc2c JH	432
8dbbc7f0	433	session_.set_device(device);
51d4a9ab	434
e95e8563	435	update_device_config_widgets();
dde1a563	436	}
51e77110	437
124d97de ML	438	void SamplingBar::on_sample_count_changed()
124d97de ML	439	{
3d4f16af	440	commit_sample_count();
124d97de ML	441	}
124d97de ML	442
48888313 JH	443	void SamplingBar::on_sample_rate_changed()
48888313 JH	444	{
3d4f16af	445	commit_sample_rate();
48888313 JH	446	}
48888313 JH	447
9f3d12f3 JH	448	void SamplingBar::on_run_stop()
9f3d12f3 JH	449	{
b50ef520	450	commit_sample_count();
9f3d12f3 JH	451	commit_sample_rate();
	452	run_stop();
	453	}
	454
82afd5e3 JH	455	void SamplingBar::on_config_changed()
	456	{
	457	commit_sample_count();
	458	update_sample_count_selector();
	459	commit_sample_rate();
	460	update_sample_rate_selector();
	461	}
	462
40065ab6 JS	463	bool SamplingBar::eventFilter(QObject watched, QEvent event)
40065ab6 JS	464	{
8dbbc7f0	465	if ((watched == &sample_count_ \|\| watched == &sample_rate_) &&
40065ab6	466	(event->type() == QEvent::ToolTip)) {
8dbbc7f0	467	double sec = (double)sample_count_.value() / sample_rate_.value();
40065ab6	468	QHelpEvent help_event = static_cast<QHelpEvent>(event);
62974f45 JS	469
62974f45 JS	470	QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec));
40065ab6 JS	471	QToolTip::showText(help_event->globalPos(), str);
	472
	473	return true;
	474	}
	475
	476	return false;
	477	}
	478
f4c92e1c	479	} // namespace toolbars
51e77110	480	} // namespace pv