[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 <libsigrok/libsigrok.h>

#include <QAction>
#include <QDebug>

#include "samplingbar.h"

#include <pv/devicemanager.h>
#include <pv/popups/deviceoptions.h>

using namespace std;

namespace pv {
namespace toolbars {

const uint64_t SamplingBar::RecordLengths[20] = {
	1000,
	2500,
	5000,
	10000,
	25000,
	50000,
	100000,
	250000,
	500000,
	1000000,
	2000000,
	5000000,
	10000000,
	25000000,
	50000000,
	100000000,
	250000000,
	500000000,
	1000000000,
	10000000000ULL,
};

const uint64_t SamplingBar::DefaultRecordLength = 1000000;

SamplingBar::SamplingBar(SigSession &session, QWidget *parent) :
	QToolBar("Sampling Bar", parent),
	_session(session),
	_device_selector(this),
	_configure_button(this),
	_probes_button(this),
	_record_length_selector(this),
	_sample_rate_list(this),
	_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()));

	_sample_rate_value.setDecimals(0);
	_sample_rate_value.setSuffix("Hz");

	for (size_t i = 0; i < countof(RecordLengths); i++)
	{
		const uint64_t &l = RecordLengths[i];
		char *const text = sr_si_string_u64(l, " samples");
		_record_length_selector.addItem(QString(text),
			qVariantFromValue(l));
		g_free(text);

		if (l == DefaultRecordLength)
			_record_length_selector.setCurrentIndex(i);
	}

	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);
	addWidget(&_configure_button);
	addWidget(&_probes_button);
	addWidget(&_record_length_selector);
	_sample_rate_list_action = addWidget(&_sample_rate_list);
	_sample_rate_value_action = addWidget(&_sample_rate_value);
	addWidget(&_run_stop_button);

	connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)),
		this, SLOT(on_sample_rate_changed()));
	connect(&_sample_rate_value, SIGNAL(editingFinished()),
		this, SLOT(on_sample_rate_changed()));
}

void SamplingBar::set_device_list(
	const std::list<struct sr_dev_inst*> &devices)
{
	_device_selector.clear();

	BOOST_FOREACH (sr_dev_inst *sdi, devices) {
		const string title = DeviceManager::format_device_title(sdi);
		_device_selector.addItem(title.c_str(),
			qVariantFromValue((void*)sdi));
	}

	update_sample_rate_selector();
}

struct sr_dev_inst* SamplingBar::get_selected_device() const
{
	const int index = _device_selector.currentIndex();
	if (index < 0)
		return NULL;

	return (sr_dev_inst*)_device_selector.itemData(
		index).value<void*>();
}

void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi)
{
	for (int i = 0; i < _device_selector.count(); i++)
		if (sdi == _device_selector.itemData(i).value<void*>()) {
			_device_selector.setCurrentIndex(i);
			return;
		}
}

uint64_t SamplingBar::get_record_length() const
{
	const int index = _record_length_selector.currentIndex();
	if (index < 0)
		return 0;

	return _record_length_selector.itemData(index).value<uint64_t>();
}

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()
{
	const sr_dev_inst *const sdi = get_selected_device();
	GVariant *gvar_dict, *gvar_list;
	const uint64_t *elements = NULL;
	gsize num_elements;
	QAction *selector_action = NULL;

	assert(_sample_rate_value_action);
	assert(_sample_rate_list_action);

	if (!sdi)
		return;

	if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
			&gvar_dict, sdi) != SR_OK)
		return;

	_sample_rate_list_action->setVisible(false);
	_sample_rate_value_action->setVisible(false);

	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));
		_sample_rate_value.setRange(elements[0], elements[1]);
		_sample_rate_value.setSingleStep(elements[2]);
		g_variant_unref(gvar_list);

		selector_action = _sample_rate_value_action;
	}
	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_list.clear();

		for (unsigned int i = 0; i < num_elements; i++)
		{
			char *const s = sr_samplerate_string(elements[i]);
			_sample_rate_list.addItem(QString(s),
				qVariantFromValue(elements[i]));
			g_free(s);
		}

		_sample_rate_list.show();
		g_variant_unref(gvar_list);

		selector_action = _sample_rate_list_action;
	}

	g_variant_unref(gvar_dict);
	update_sample_rate_selector_value();

	// We delay showing the action, so that value change events
	// are ignored.
	if (selector_action)
		selector_action->setVisible(true);
}

void SamplingBar::update_sample_rate_selector_value()
{
	sr_dev_inst *const sdi = get_selected_device();
	GVariant *gvar;
	uint64_t samplerate;

	assert(sdi);

	if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
		&gvar, sdi) != SR_OK) {
		qDebug() <<
				"WARNING: Failed to get value of sample rate";
		return;
	}
	samplerate = g_variant_get_uint64(gvar);
	g_variant_unref(gvar);

	assert(_sample_rate_value_action);
	assert(_sample_rate_list_action);

	if (_sample_rate_value_action->isVisible())
		_sample_rate_value.setValue(samplerate);
	else if (_sample_rate_list_action->isVisible())
	{
		for (int i = 0; i < _sample_rate_list.count(); i++)
			if (samplerate == _sample_rate_list.itemData(
				i).value<uint64_t>())
				_sample_rate_list.setCurrentIndex(i);
	}
}

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

	sr_dev_inst *const sdi = get_selected_device();
	assert(sdi);

	assert(_sample_rate_value_action);
	assert(_sample_rate_list_action);

	if (_sample_rate_value_action->isVisible())
		sample_rate = (uint64_t)_sample_rate_value.value();
	else if (_sample_rate_list_action->isVisible())
	{
		const int index = _sample_rate_list.currentIndex();
		if (index >= 0)
			sample_rate = _sample_rate_list.itemData(
				index).value<uint64_t>();
	}

	if (sample_rate == 0)
		return;

	// Set the samplerate
	if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
		g_variant_new_uint64(sample_rate)) != SR_OK) {
		qDebug() << "Failed to configure samplerate.";
		return;
	}
}

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

	update_sample_rate_selector();

	sr_dev_inst *const sdi = get_selected_device();
	_session.set_device(sdi);

	_configure_button.set_popup(new DeviceOptions(sdi, this));
	_probes_button.set_popup(new Probes(_session, this));
}

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

void SamplingBar::on_run_stop()
{
	commit_sample_rate();	
	run_stop();
}

} // namespace toolbars
} // 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, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include <extdef.h>
	22
	23	#include <assert.h>
	24
	25	#include <boost/foreach.hpp>
	26
	27	#include <libsigrok/libsigrok.h>
	28
	29	#include <QAction>
	30	#include <QDebug>
	31
	32	#include "samplingbar.h"
	33
	34	#include <pv/devicemanager.h>
	35	#include <pv/popups/deviceoptions.h>
	36
	37	using namespace std;
	38
	39	namespace pv {
	40	namespace toolbars {
	41
	42	const uint64_t SamplingBar::RecordLengths[20] = {
	43	1000,
	44	2500,
	45	5000,
	46	10000,
	47	25000,
	48	50000,
	49	100000,
	50	250000,
	51	500000,
	52	1000000,
	53	2000000,
	54	5000000,
	55	10000000,
	56	25000000,
	57	50000000,
	58	100000000,
	59	250000000,
	60	500000000,
	61	1000000000,
	62	10000000000ULL,
	63	};
	64
	65	const uint64_t SamplingBar::DefaultRecordLength = 1000000;
	66
	67	SamplingBar::SamplingBar(SigSession &session, QWidget *parent) :
	68	QToolBar("Sampling Bar", parent),
	69	_session(session),
	70	_device_selector(this),
	71	_configure_button(this),
	72	_probes_button(this),
	73	_record_length_selector(this),
	74	_sample_rate_list(this),
	75	_icon_red(":/icons/status-red.svg"),
	76	_icon_green(":/icons/status-green.svg"),
	77	_icon_grey(":/icons/status-grey.svg"),
	78	_run_stop_button(this)
	79	{
	80	connect(&_run_stop_button, SIGNAL(clicked()),
	81	this, SLOT(on_run_stop()));
	82	connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
	83	this, SLOT(on_device_selected()));
	84
	85	_sample_rate_value.setDecimals(0);
	86	_sample_rate_value.setSuffix("Hz");
	87
	88	for (size_t i = 0; i < countof(RecordLengths); i++)
	89	{
	90	const uint64_t &l = RecordLengths[i];
	91	char *const text = sr_si_string_u64(l, " samples");
	92	_record_length_selector.addItem(QString(text),
	93	qVariantFromValue(l));
	94	g_free(text);
	95
	96	if (l == DefaultRecordLength)
	97	_record_length_selector.setCurrentIndex(i);
	98	}
	99
	100	set_capture_state(pv::SigSession::Stopped);
	101
	102	_configure_button.setIcon(QIcon::fromTheme("configure",
	103	QIcon(":/icons/configure.png")));
	104	_probes_button.setIcon(QIcon::fromTheme("probes",
	105	QIcon(":/icons/probes.svg")));
	106
	107	_run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
	108
	109	addWidget(&_device_selector);
	110	addWidget(&_configure_button);
	111	addWidget(&_probes_button);
	112	addWidget(&_record_length_selector);
	113	_sample_rate_list_action = addWidget(&_sample_rate_list);
	114	_sample_rate_value_action = addWidget(&_sample_rate_value);
	115	addWidget(&_run_stop_button);
	116
	117	connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)),
	118	this, SLOT(on_sample_rate_changed()));
	119	connect(&_sample_rate_value, SIGNAL(editingFinished()),
	120	this, SLOT(on_sample_rate_changed()));
	121	}
	122
	123	void SamplingBar::set_device_list(
	124	const std::list<struct sr_dev_inst*> &devices)
	125	{
	126	_device_selector.clear();
	127
	128	BOOST_FOREACH (sr_dev_inst *sdi, devices) {
	129	const string title = DeviceManager::format_device_title(sdi);
	130	_device_selector.addItem(title.c_str(),
	131	qVariantFromValue((void*)sdi));
	132	}
	133
	134	update_sample_rate_selector();
	135	}
	136
	137	struct sr_dev_inst* SamplingBar::get_selected_device() const
	138	{
	139	const int index = _device_selector.currentIndex();
	140	if (index < 0)
	141	return NULL;
	142
	143	return (sr_dev_inst*)_device_selector.itemData(
	144	index).value<void*>();
	145	}
	146
	147	void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi)
	148	{
	149	for (int i = 0; i < _device_selector.count(); i++)
	150	if (sdi == _device_selector.itemData(i).value<void*>()) {
	151	_device_selector.setCurrentIndex(i);
	152	return;
	153	}
	154	}
	155
	156	uint64_t SamplingBar::get_record_length() const
	157	{
	158	const int index = _record_length_selector.currentIndex();
	159	if (index < 0)
	160	return 0;
	161
	162	return _record_length_selector.itemData(index).value<uint64_t>();
	163	}
	164
	165	void SamplingBar::set_capture_state(pv::SigSession::capture_state state)
	166	{
	167	const QIcon *icons[] = {&_icon_grey, &_icon_red, &_icon_green};
	168	_run_stop_button.setIcon(*icons[state]);
	169	_run_stop_button.setText((state == pv::SigSession::Stopped) ?
	170	tr("Run") : tr("Stop"));
	171	}
	172
	173	void SamplingBar::update_sample_rate_selector()
	174	{
	175	const sr_dev_inst *const sdi = get_selected_device();
	176	GVariant gvar_dict, gvar_list;
	177	const uint64_t *elements = NULL;
	178	gsize num_elements;
	179	QAction *selector_action = NULL;
	180
	181	assert(_sample_rate_value_action);
	182	assert(_sample_rate_list_action);
	183
	184	if (!sdi)
	185	return;
	186
	187	if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
	188	&gvar_dict, sdi) != SR_OK)
	189	return;
	190
	191	_sample_rate_list_action->setVisible(false);
	192	_sample_rate_value_action->setVisible(false);
	193
	194	if ((gvar_list = g_variant_lookup_value(gvar_dict,
	195	"samplerate-steps", G_VARIANT_TYPE("at")))) {
	196	elements = (const uint64_t *)g_variant_get_fixed_array(
	197	gvar_list, &num_elements, sizeof(uint64_t));
	198	_sample_rate_value.setRange(elements[0], elements[1]);
	199	_sample_rate_value.setSingleStep(elements[2]);
	200	g_variant_unref(gvar_list);
	201
	202	selector_action = _sample_rate_value_action;
	203	}
	204	else if ((gvar_list = g_variant_lookup_value(gvar_dict,
	205	"samplerates", G_VARIANT_TYPE("at"))))
	206	{
	207	elements = (const uint64_t *)g_variant_get_fixed_array(
	208	gvar_list, &num_elements, sizeof(uint64_t));
	209	_sample_rate_list.clear();
	210
	211	for (unsigned int i = 0; i < num_elements; i++)
	212	{
	213	char *const s = sr_samplerate_string(elements[i]);
	214	_sample_rate_list.addItem(QString(s),
	215	qVariantFromValue(elements[i]));
	216	g_free(s);
	217	}
	218
	219	_sample_rate_list.show();
	220	g_variant_unref(gvar_list);
	221
	222	selector_action = _sample_rate_list_action;
	223	}
	224
	225	g_variant_unref(gvar_dict);
	226	update_sample_rate_selector_value();
	227
	228	// We delay showing the action, so that value change events
	229	// are ignored.
	230	if (selector_action)
	231	selector_action->setVisible(true);
	232	}
	233
	234	void SamplingBar::update_sample_rate_selector_value()
	235	{
	236	sr_dev_inst *const sdi = get_selected_device();
	237	GVariant *gvar;
	238	uint64_t samplerate;
	239
	240	assert(sdi);
	241
	242	if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
	243	&gvar, sdi) != SR_OK) {
	244	qDebug() <<
	245	"WARNING: Failed to get value of sample rate";
	246	return;
	247	}
	248	samplerate = g_variant_get_uint64(gvar);
	249	g_variant_unref(gvar);
	250
	251	assert(_sample_rate_value_action);
	252	assert(_sample_rate_list_action);
	253
	254	if (_sample_rate_value_action->isVisible())
	255	_sample_rate_value.setValue(samplerate);
	256	else if (_sample_rate_list_action->isVisible())
	257	{
	258	for (int i = 0; i < _sample_rate_list.count(); i++)
	259	if (samplerate == _sample_rate_list.itemData(
	260	i).value<uint64_t>())
	261	_sample_rate_list.setCurrentIndex(i);
	262	}
	263	}
	264
	265	void SamplingBar::commit_sample_rate()
	266	{
	267	uint64_t sample_rate = 0;
	268
	269	sr_dev_inst *const sdi = get_selected_device();
	270	assert(sdi);
	271
	272	assert(_sample_rate_value_action);
	273	assert(_sample_rate_list_action);
	274
	275	if (_sample_rate_value_action->isVisible())
	276	sample_rate = (uint64_t)_sample_rate_value.value();
	277	else if (_sample_rate_list_action->isVisible())
	278	{
	279	const int index = _sample_rate_list.currentIndex();
	280	if (index >= 0)
	281	sample_rate = _sample_rate_list.itemData(
	282	index).value<uint64_t>();
	283	}
	284
	285	if (sample_rate == 0)
	286	return;
	287
	288	// Set the samplerate
	289	if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
	290	g_variant_new_uint64(sample_rate)) != SR_OK) {
	291	qDebug() << "Failed to configure samplerate.";
	292	return;
	293	}
	294	}
	295
	296	void SamplingBar::on_device_selected()
	297	{
	298	using namespace pv::popups;
	299
	300	update_sample_rate_selector();
	301
	302	sr_dev_inst *const sdi = get_selected_device();
	303	_session.set_device(sdi);
	304
	305	_configure_button.set_popup(new DeviceOptions(sdi, this));
	306	_probes_button.set_popup(new Probes(_session, this));
	307	}
	308
	309	void SamplingBar::on_sample_rate_changed()
	310	{
	311	commit_sample_rate();
	312	}
	313
	314	void SamplingBar::on_run_stop()
	315	{
	316	commit_sample_rate();
	317	run_stop();
	318	}
	319
	320	} // namespace toolbars
	321	} // namespace pv