[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 <boost/foreach.hpp>

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

#include "samplingbar.h"

#include <pv/devicemanager.h>
#include <pv/device/devinst.h>
#include <pv/popups/deviceoptions.h>
#include <pv/popups/probes.h>

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

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),
	_probes_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)
{
	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")));

	_probes_button.setIcon(QIcon::fromTheme("probes",
		QIcon(":/icons/probes.svg")));

	_run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

	addWidget(&_device_selector);
	_configure_button_action = addWidget(&_configure_button);
	addWidget(&_probes_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< shared_ptr<pv::device::DevInst> > &devices,
	shared_ptr<pv::device::DevInst> selected)
{
	int selected_index = -1;

	assert(selected);

	_updating_device_selector = true;

	_device_selector.clear();
	_device_selector_map.clear();

	BOOST_FOREACH (shared_ptr<pv::device::DevInst> dev_inst, devices) {
		assert(dev_inst);
		const string title = dev_inst->format_device_title();
		const sr_dev_inst *sdi = dev_inst->dev_inst();
		assert(sdi);

		if (selected == dev_inst)
			selected_index = _device_selector.count();

		_device_selector_map[sdi] = dev_inst;
		_device_selector.addItem(title.c_str(),
			qVariantFromValue((void*)sdi));
	}

	// 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<pv::device::DevInst> SamplingBar::get_selected_device() const
{
	const int index = _device_selector.currentIndex();
	if (index < 0)
		return shared_ptr<pv::device::DevInst>();

	const sr_dev_inst *const sdi =
		(const sr_dev_inst*)_device_selector.itemData(
			index).value<void*>();
	assert(sdi);

	map<const sr_dev_inst*, boost::weak_ptr<device::DevInst> >::
		const_iterator iter = _device_selector_map.find(sdi);
	if (iter == _device_selector_map.end())
		return shared_ptr<pv::device::DevInst>();

	return shared_ptr<pv::device::DevInst>((*iter).second);
}

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"));
}

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

	if (_updating_sample_rate)
		return;

	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

	assert(!_updating_sample_rate);
	_updating_sample_rate = true;

	if (!(gvar_dict = dev_inst->list_config(NULL, SR_CONF_SAMPLERATE)))
	{
		_sample_rate.show_none();
		_updating_sample_rate = false;
		return;
	}

	if ((gvar_list = g_variant_lookup_value(gvar_dict,
			"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,
			"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;

	g_variant_unref(gvar_dict);
	update_sample_rate_selector_value();
}

void SamplingBar::update_sample_rate_selector_value()
{
	GVariant *gvar;
	uint64_t samplerate;

	if (_updating_sample_rate)
		return;

	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

	if (!(gvar = dev_inst->get_config(NULL, SR_CONF_SAMPLERATE))) {
		qDebug() << "WARNING: Failed to get value of sample rate";
		return;
	}
	samplerate = g_variant_get_uint64(gvar);
	g_variant_unref(gvar);

	assert(!_updating_sample_rate);
	_updating_sample_rate = true;
	_sample_rate.set_value(samplerate);
	_updating_sample_rate = false;
}

void SamplingBar::update_sample_count_selector()
{
	GVariant *gvar;

	if (_updating_sample_count)
		return;

	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

	assert(!_updating_sample_count);
	_updating_sample_count = true;

	if (_sample_count_supported)
	{
		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;

		if ((gvar = dev_inst->list_config(NULL, SR_CONF_LIMIT_SAMPLES)))
		{
			g_variant_get(gvar, "(tt)",
				&min_sample_count, &max_sample_count);
			g_variant_unref(gvar);
		}

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

		_sample_count.show_125_list(
			min_sample_count, max_sample_count);

		if ((gvar = dev_inst->get_config(NULL, SR_CONF_LIMIT_SAMPLES)))
		{
			sample_count = g_variant_get_uint64(gvar);
			if (sample_count == 0)
				sample_count = DefaultSampleCount;
			sample_count = min(max(sample_count, MinSampleCount),
				max_sample_count);

			g_variant_unref(gvar);
		}

		_sample_count.set_value(sample_count);
	}
	else
		_sample_count.show_none();

	_updating_sample_count = false;
}

void SamplingBar::update_device_config_widgets()
{
	GVariant *gvar;

	using namespace pv::popups;

	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

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

	// Update the probes popup
	Probes *const probes = new Probes(_session, this);
	_probes_button.set_popup(probes);

	// Update supported options.
	_sample_count_supported = false;

	if ((gvar = dev_inst->list_config(NULL, SR_CONF_DEVICE_OPTIONS)))
	{
		gsize num_opts;
		const int *const options =
			(const int32_t *)g_variant_get_fixed_array(
			        gvar, &num_opts, sizeof(int32_t));
		for (unsigned int i = 0; i < num_opts; i++)
		{
			switch (options[i]) {
			case SR_CONF_LIMIT_SAMPLES:
				_sample_count_supported = true;
				break;
			case SR_CONF_LIMIT_FRAMES:
				dev_inst->set_config(NULL, SR_CONF_LIMIT_FRAMES,
					g_variant_new_uint64(1));
				break;
			}
		}
	}

	// Add notification of reconfigure events
	disconnect(this, SLOT(on_config_changed()));
	connect(dev_inst.get(), 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::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

	sample_count = _sample_count.value();

	// Set the sample count
	assert(!_updating_sample_count);
	_updating_sample_count = true;
	if (_sample_count_supported &&
		!dev_inst->set_config(NULL, SR_CONF_LIMIT_SAMPLES,
		g_variant_new_uint64(sample_count))) {
		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::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

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

	// Set the samplerate
	assert(!_updating_sample_rate);
	_updating_sample_rate = true;
	if (!dev_inst->set_config(NULL, SR_CONF_SAMPLERATE,
		g_variant_new_uint64(sample_rate))) {
		qDebug() << "Failed to configure samplerate.";
		return;
	}
	_updating_sample_rate = false;
}

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

	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
	if (!dev_inst)
		return;

	_session.set_device(dev_inst);

	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();

		QString str;
		QTextStream(&str)
			<< tr("Total sampling time: ")
			<< fixed
			<< qSetRealNumberPrecision(1)
			<< sec
			<< "s";

		QHelpEvent *help_event = static_cast<QHelpEvent*>(event);
		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
18203d86 JH	25	#include <boost/foreach.hpp>
18203d86 JH	26
dde1a563	27	#include <QAction>
48888313	28	#include <QDebug>
40065ab6 JS	29	#include <QHelpEvent>
40065ab6 JS	30	#include <QToolTip>
dde1a563	31
d4984fe7 JH	32	#include "samplingbar.h"
d4984fe7 JH	33
dd63af74	34	#include <pv/devicemanager.h>
94574501	35	#include <pv/device/devinst.h>
51d4a9ab	36	#include <pv/popups/deviceoptions.h>
488f068c	37	#include <pv/popups/probes.h>
cdb50f67	38
19adbc2c JH	39	using boost::shared_ptr;
19adbc2c JH	40	using std::map;
b50ef520 JH	41	using std::max;
b50ef520 JH	42	using std::min;
819f4c25	43	using std::string;
dd63af74	44
51e77110	45	namespace pv {
f4c92e1c	46	namespace toolbars {
51e77110	47
b50ef520 JH	48	const uint64_t SamplingBar::MinSampleCount = 100ULL;
	49	const uint64_t SamplingBar::MaxSampleCount = 1000000000000ULL;
	50	const uint64_t SamplingBar::DefaultSampleCount = 1000000;
09f5d123	51
aca00b1e	52	SamplingBar::SamplingBar(SigSession &session, QWidget *parent) :
6fb67b27	53	QToolBar("Sampling Bar", parent),
aca00b1e	54	_session(session),
dde1a563	55	_device_selector(this),
95237c18	56	_updating_device_selector(false),
cdb50f67	57	_configure_button(this),
b3e8a5d8	58	_configure_button_action(NULL),
51d4a9ab	59	_probes_button(this),
124d97de	60	_sample_count(" samples", this),
1198b887 JH	61	_sample_rate("Hz", this),
1198b887 JH	62	_updating_sample_rate(false),
85756012	63	_updating_sample_count(false),
6546a6a7	64	_sample_count_supported(false),
2b49eeb0	65	_icon_red(":/icons/status-red.svg"),
f5798068 JH	66	_icon_green(":/icons/status-green.svg"),
f5798068 JH	67	_icon_grey(":/icons/status-grey.svg"),
274d4f13	68	_run_stop_button(this)
6fb67b27	69	{
cdb50f67	70	connect(&_run_stop_button, SIGNAL(clicked()),
9f3d12f3	71	this, SLOT(on_run_stop()));
dde1a563 JH	72	connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
dde1a563 JH	73	this, SLOT(on_device_selected()));
124d97de ML	74	connect(&_sample_count, SIGNAL(value_changed()),
124d97de ML	75	this, SLOT(on_sample_count_changed()));
1198b887 JH	76	connect(&_sample_rate, SIGNAL(value_changed()),
1198b887 JH	77	this, SLOT(on_sample_rate_changed()));
dde1a563	78
124d97de	79	_sample_count.show_min_max_step(0, UINT64_MAX, 1);
215f9499	80
2b49eeb0	81	set_capture_state(pv::SigSession::Stopped);
274d4f13	82
688ef645 JH	83	_configure_button.setIcon(QIcon::fromTheme("configure",
688ef645 JH	84	QIcon(":/icons/configure.png")));
b7b659aa	85
51d4a9ab JH	86	_probes_button.setIcon(QIcon::fromTheme("probes",
51d4a9ab JH	87	QIcon(":/icons/probes.svg")));
cdb50f67	88
f5798068 JH	89	_run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
f5798068 JH	90
6fb67b27	91	addWidget(&_device_selector);
b3e8a5d8	92	_configure_button_action = addWidget(&_configure_button);
51d4a9ab	93	addWidget(&_probes_button);
124d97de	94	addWidget(&_sample_count);
1198b887	95	addWidget(&_sample_rate);
6fb67b27	96
1198b887	97	addWidget(&_run_stop_button);
40065ab6 JS	98
	99	_sample_count.installEventFilter(this);
	100	_sample_rate.installEventFilter(this);
6fb67b27 JH	101	}
6fb67b27 JH	102
18203d86	103	void SamplingBar::set_device_list(
e95e8563 JH	104	const std::list< shared_ptr<pv::device::DevInst> > &devices,
e95e8563 JH	105	shared_ptr<pv::device::DevInst> selected)
18203d86	106	{
e95e8563 JH	107	int selected_index = -1;
	108
	109	assert(selected);
	110
95237c18 JH	111	_updating_device_selector = true;
95237c18 JH	112
18203d86	113	_device_selector.clear();
19adbc2c	114	_device_selector_map.clear();
18203d86	115
94574501	116	BOOST_FOREACH (shared_ptr<pv::device::DevInst> dev_inst, devices) {
19adbc2c JH	117	assert(dev_inst);
	118	const string title = dev_inst->format_device_title();
	119	const sr_dev_inst *sdi = dev_inst->dev_inst();
	120	assert(sdi);
	121
e95e8563 JH	122	if (selected == dev_inst)
	123	selected_index = _device_selector.count();
	124
19adbc2c	125	_device_selector_map[sdi] = dev_inst;
dd63af74 JH	126	_device_selector.addItem(title.c_str(),
dd63af74 JH	127	qVariantFromValue((void*)sdi));
18203d86 JH	128	}
18203d86 JH	129
e95e8563 JH	130	// The selected device should have been in the list
	131	assert(selected_index != -1);
	132	_device_selector.setCurrentIndex(selected_index);
	133
	134	update_device_config_widgets();
	135
95237c18	136	_updating_device_selector = false;
18203d86 JH	137	}
18203d86 JH	138
94574501	139	shared_ptr<pv::device::DevInst> SamplingBar::get_selected_device() const
d4984fe7	140	{
6fb67b27	141	const int index = _device_selector.currentIndex();
333d5bbc	142	if (index < 0)
94574501	143	return shared_ptr<pv::device::DevInst>();
19adbc2c JH	144
	145	const sr_dev_inst *const sdi =
	146	(const sr_dev_inst*)_device_selector.itemData(
	147	index).value<void*>();
	148	assert(sdi);
6fb67b27	149
94574501	150	map<const sr_dev_inst*, boost::weak_ptr<device::DevInst> >::
19adbc2c JH	151	const_iterator iter = _device_selector_map.find(sdi);
19adbc2c JH	152	if (iter == _device_selector_map.end())
94574501	153	return shared_ptr<pv::device::DevInst>();
19adbc2c	154
94574501	155	return shared_ptr<pv::device::DevInst>((*iter).second);
6fb67b27 JH	156	}
6fb67b27 JH	157
2b49eeb0	158	void SamplingBar::set_capture_state(pv::SigSession::capture_state state)
6ac96c2e	159	{
2b49eeb0 JH	160	const QIcon *icons[] = {&_icon_grey, &_icon_red, &_icon_green};
	161	_run_stop_button.setIcon(*icons[state]);
	162	_run_stop_button.setText((state == pv::SigSession::Stopped) ?
	163	tr("Run") : tr("Stop"));
6ac96c2e JH	164	}
6ac96c2e JH	165
dde1a563 JH	166	void SamplingBar::update_sample_rate_selector()
dde1a563 JH	167	{
488f5d3f BV	168	GVariant gvar_dict, gvar_list;
	169	const uint64_t *elements = NULL;
	170	gsize num_elements;
dde1a563	171
3d4f16af JH	172	if (_updating_sample_rate)
	173	return;
	174
94574501	175	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
19adbc2c	176	if (!dev_inst)
ef4d0201 JH	177	return;
ef4d0201 JH	178
3d4f16af	179	assert(!_updating_sample_rate);
1198b887 JH	180	_updating_sample_rate = true;
1198b887 JH	181
8dd44190	182	if (!(gvar_dict = dev_inst->list_config(NULL, SR_CONF_SAMPLERATE)))
1198b887 JH	183	{
	184	_sample_rate.show_none();
	185	_updating_sample_rate = false;
dde1a563	186	return;
1198b887	187	}
dde1a563	188
488f5d3f	189	if ((gvar_list = g_variant_lookup_value(gvar_dict,
1198b887 JH	190	"samplerate-steps", G_VARIANT_TYPE("at"))))
1198b887 JH	191	{
488f5d3f BV	192	elements = (const uint64_t *)g_variant_get_fixed_array(
488f5d3f BV	193	gvar_list, &num_elements, sizeof(uint64_t));
aafe53af JH	194
	195	const uint64_t min = elements[0];
	196	const uint64_t max = elements[1];
	197	const uint64_t step = elements[2];
	198
488f5d3f	199	g_variant_unref(gvar_list);
aafe53af JH	200
	201	assert(min > 0);
	202	assert(max > 0);
	203	assert(max > min);
	204	assert(step > 0);
	205
	206	if (step == 1)
	207	_sample_rate.show_125_list(min, max);
	208	else
	209	{
	210	// When the step is not 1, we cam't make a 1-2-5-10
	211	// list of sample rates, because we may not be able to
	212	// make round numbers. Therefore in this case, show a
	213	// spin box.
	214	_sample_rate.show_min_max_step(min, max, step);
	215	}
dde1a563	216	}
488f5d3f BV	217	else if ((gvar_list = g_variant_lookup_value(gvar_dict,
488f5d3f BV	218	"samplerates", G_VARIANT_TYPE("at"))))
dde1a563	219	{
488f5d3f BV	220	elements = (const uint64_t *)g_variant_get_fixed_array(
488f5d3f BV	221	gvar_list, &num_elements, sizeof(uint64_t));
1198b887	222	_sample_rate.show_list(elements, num_elements);
488f5d3f	223	g_variant_unref(gvar_list);
dde1a563	224	}
1198b887	225	_updating_sample_rate = false;
48888313	226
488f5d3f	227	g_variant_unref(gvar_dict);
48888313 JH	228	update_sample_rate_selector_value();
	229	}
	230
	231	void SamplingBar::update_sample_rate_selector_value()
	232	{
488f5d3f BV	233	GVariant *gvar;
	234	uint64_t samplerate;
	235
3d4f16af JH	236	if (_updating_sample_rate)
	237	return;
	238
94574501	239	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
19adbc2c JH	240	if (!dev_inst)
	241	return;
	242
8dd44190 JH	243	if (!(gvar = dev_inst->get_config(NULL, SR_CONF_SAMPLERATE))) {
8dd44190 JH	244	qDebug() << "WARNING: Failed to get value of sample rate";
eb4008a6 JH	245	return;
eb4008a6 JH	246	}
488f5d3f BV	247	samplerate = g_variant_get_uint64(gvar);
488f5d3f BV	248	g_variant_unref(gvar);
48888313	249
3d4f16af	250	assert(!_updating_sample_rate);
1198b887 JH	251	_updating_sample_rate = true;
	252	_sample_rate.set_value(samplerate);
	253	_updating_sample_rate = false;
48888313 JH	254	}
48888313 JH	255
85756012 ML	256	void SamplingBar::update_sample_count_selector()
85756012 ML	257	{
85756012	258	GVariant *gvar;
85756012	259
3d4f16af JH	260	if (_updating_sample_count)
	261	return;
	262
94574501	263	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
19adbc2c JH	264	if (!dev_inst)
	265	return;
	266
3d4f16af	267	assert(!_updating_sample_count);
b50ef520	268	_updating_sample_count = true;
85756012	269
b50ef520	270	if (_sample_count_supported)
df3c1aa3	271	{
3cbffdcf	272	uint64_t sample_count = _sample_count.value();
1d04852f	273	uint64_t min_sample_count = 0;
b50ef520 JH	274	uint64_t max_sample_count = MaxSampleCount;
b50ef520 JH	275
3cbffdcf JH	276	if (sample_count == 0)
	277	sample_count = DefaultSampleCount;
	278
8dd44190 JH	279	if ((gvar = dev_inst->list_config(NULL, SR_CONF_LIMIT_SAMPLES)))
8dd44190 JH	280	{
1d04852f JH	281	g_variant_get(gvar, "(tt)",
1d04852f JH	282	&min_sample_count, &max_sample_count);
b50ef520 JH	283	g_variant_unref(gvar);
	284	}
	285
1d04852f JH	286	min_sample_count = min(max(min_sample_count, MinSampleCount),
	287	max_sample_count);
	288
	289	_sample_count.show_125_list(
	290	min_sample_count, max_sample_count);
b50ef520	291
8dd44190	292	if ((gvar = dev_inst->get_config(NULL, SR_CONF_LIMIT_SAMPLES)))
b50ef520 JH	293	{
	294	sample_count = g_variant_get_uint64(gvar);
	295	if (sample_count == 0)
	296	sample_count = DefaultSampleCount;
	297	sample_count = min(max(sample_count, MinSampleCount),
	298	max_sample_count);
	299
	300	g_variant_unref(gvar);
	301	}
	302
	303	_sample_count.set_value(sample_count);
85756012	304	}
b50ef520 JH	305	else
b50ef520 JH	306	_sample_count.show_none();
df3c1aa3	307
df3c1aa3	308	_updating_sample_count = false;
85756012 ML	309	}
85756012 ML	310
e95e8563 JH	311	void SamplingBar::update_device_config_widgets()
	312	{
	313	GVariant *gvar;
	314
	315	using namespace pv::popups;
	316
	317	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
	318	if (!dev_inst)
	319	return;
	320
	321	// Update the configure popup
	322	DeviceOptions *const opts = new DeviceOptions(dev_inst, this);
	323	_configure_button_action->setVisible(
	324	!opts->binding().properties().empty());
	325	_configure_button.set_popup(opts);
	326
	327	// Update the probes popup
	328	Probes *const probes = new Probes(_session, this);
	329	_probes_button.set_popup(probes);
	330
	331	// Update supported options.
	332	_sample_count_supported = false;
	333
	334	if ((gvar = dev_inst->list_config(NULL, SR_CONF_DEVICE_OPTIONS)))
	335	{
	336	gsize num_opts;
	337	const int *const options =
	338	(const int32_t *)g_variant_get_fixed_array(
	339	gvar, &num_opts, sizeof(int32_t));
	340	for (unsigned int i = 0; i < num_opts; i++)
	341	{
	342	switch (options[i]) {
	343	case SR_CONF_LIMIT_SAMPLES:
	344	_sample_count_supported = true;
	345	break;
	346	case SR_CONF_LIMIT_FRAMES:
	347	dev_inst->set_config(NULL, SR_CONF_LIMIT_FRAMES,
	348	g_variant_new_uint64(1));
	349	break;
	350	}
	351	}
	352	}
	353
	354	// Add notification of reconfigure events
	355	disconnect(this, SLOT(on_config_changed()));
	356	connect(dev_inst.get(), SIGNAL(config_changed()),
	357	this, SLOT(on_config_changed()));
	358
	359	// Update sweep timing widgets.
	360	update_sample_count_selector();
	361	update_sample_rate_selector();
	362	}
	363
124d97de ML	364	void SamplingBar::commit_sample_count()
	365	{
	366	uint64_t sample_count = 0;
	367
3d4f16af JH	368	if (_updating_sample_count)
	369	return;
	370
94574501	371	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
19adbc2c JH	372	if (!dev_inst)
	373	return;
	374
124d97de ML	375	sample_count = _sample_count.value();
	376
	377	// Set the sample count
3d4f16af JH	378	assert(!_updating_sample_count);
3d4f16af JH	379	_updating_sample_count = true;
3668e2fe JH	380	if (_sample_count_supported &&
3668e2fe JH	381	!dev_inst->set_config(NULL, SR_CONF_LIMIT_SAMPLES,
8dd44190	382	g_variant_new_uint64(sample_count))) {
124d97de ML	383	qDebug() << "Failed to configure sample count.";
	384	return;
	385	}
3d4f16af	386	_updating_sample_count = false;
124d97de ML	387	}
124d97de ML	388
48888313 JH	389	void SamplingBar::commit_sample_rate()
	390	{
	391	uint64_t sample_rate = 0;
	392
3d4f16af JH	393	if (_updating_sample_rate)
	394	return;
	395
94574501	396	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
19adbc2c JH	397	if (!dev_inst)
	398	return;
	399
1198b887	400	sample_rate = _sample_rate.value();
f9541bde JH	401	if (sample_rate == 0)
	402	return;
	403
48888313	404	// Set the samplerate
3d4f16af JH	405	assert(!_updating_sample_rate);
3d4f16af JH	406	_updating_sample_rate = true;
8dd44190 JH	407	if (!dev_inst->set_config(NULL, SR_CONF_SAMPLERATE,
8dd44190 JH	408	g_variant_new_uint64(sample_rate))) {
48888313 JH	409	qDebug() << "Failed to configure samplerate.";
	410	return;
	411	}
3d4f16af	412	_updating_sample_rate = false;
dde1a563 JH	413	}
	414
	415	void SamplingBar::on_device_selected()
	416	{
95237c18 JH	417	if (_updating_device_selector)
	418	return;
	419
94574501	420	const shared_ptr<device::DevInst> dev_inst = get_selected_device();
19adbc2c JH	421	if (!dev_inst)
	422	return;
	423
19adbc2c	424	_session.set_device(dev_inst);
51d4a9ab	425
e95e8563	426	update_device_config_widgets();
dde1a563	427	}
51e77110	428
124d97de ML	429	void SamplingBar::on_sample_count_changed()
124d97de ML	430	{
3d4f16af	431	commit_sample_count();
124d97de ML	432	}
124d97de ML	433
48888313 JH	434	void SamplingBar::on_sample_rate_changed()
48888313 JH	435	{
3d4f16af	436	commit_sample_rate();
48888313 JH	437	}
48888313 JH	438
9f3d12f3 JH	439	void SamplingBar::on_run_stop()
9f3d12f3 JH	440	{
b50ef520	441	commit_sample_count();
9f3d12f3 JH	442	commit_sample_rate();
	443	run_stop();
	444	}
	445
82afd5e3 JH	446	void SamplingBar::on_config_changed()
	447	{
	448	commit_sample_count();
	449	update_sample_count_selector();
	450	commit_sample_rate();
	451	update_sample_rate_selector();
	452	}
	453
40065ab6 JS	454	bool SamplingBar::eventFilter(QObject watched, QEvent event)
	455	{
	456	if ((watched == &_sample_count \|\| watched == &_sample_rate) &&
	457	(event->type() == QEvent::ToolTip)) {
	458	double sec = (double)_sample_count.value() / _sample_rate.value();
	459
	460	QString str;
	461	QTextStream(&str)
	462	<< tr("Total sampling time: ")
	463	<< fixed
	464	<< qSetRealNumberPrecision(1)
	465	<< sec
	466	<< "s";
	467
	468	QHelpEvent help_event = static_cast<QHelpEvent>(event);
	469	QToolTip::showText(help_event->globalPos(), str);
	470
	471	return true;
	472	}
	473
	474	return false;
	475	}
	476
f4c92e1c	477	} // namespace toolbars
51e77110	478	} // namespace pv