[pulseview.git] / pv / toolbars / mainbar.cpp

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012-2015 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 <algorithm>
#include <cassert>

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

#include "mainbar.hpp"

#include <pv/devicemanager.hpp>
#include <pv/devices/hardwaredevice.hpp>
#include <pv/mainwindow.hpp>
#include <pv/popups/deviceoptions.hpp>
#include <pv/popups/channels.hpp>
#include <pv/util.hpp>
#include <pv/widgets/exportmenu.hpp>
#include <pv/widgets/importmenu.hpp>

#include <libsigrokcxx/libsigrokcxx.hpp>

using std::back_inserter;
using std::copy;
using std::list;
using std::map;
using std::max;
using std::min;
using std::shared_ptr;
using std::string;
using std::vector;

using sigrok::Capability;
using sigrok::ConfigKey;
using sigrok::Error;
using sigrok::InputFormat;

namespace pv {
namespace toolbars {

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

MainBar::MainBar(Session &session, MainWindow &main_window) :
	QToolBar("Sampling Bar", &main_window),
	session_(session),
	main_window_(main_window),
	device_selector_(this, session.device_manager(),
		main_window.action_connect()),
	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),
	menu_button_(this)
{
	setObjectName(QString::fromUtf8("MainBar"));

	setMovable(false);
	setFloatable(false);
	setContextMenuPolicy(Qt::PreventContextMenu);

	// Open button
	QToolButton *const open_button = new QToolButton(this);

	widgets::ImportMenu *import_menu = new widgets::ImportMenu(this,
		session.device_manager().context(),
		main_window.action_open());
	connect(import_menu,
		SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
		&main_window_,
		SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));

	open_button->setMenu(import_menu);
	open_button->setDefaultAction(main_window.action_open());
	open_button->setPopupMode(QToolButton::MenuButtonPopup);

	// Save button
	QToolButton *const save_button = new QToolButton(this);

	widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
		session.device_manager().context(),
		main_window.action_save_as());
	connect(export_menu,
		SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
		&main_window_,
		SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));

	save_button->setMenu(export_menu);
	save_button->setDefaultAction(main_window.action_save_as());
	save_button->setPopupMode(QToolButton::MenuButtonPopup);

	// Device selector menu
	connect(&device_selector_, SIGNAL(device_selected()),
		this, SLOT(on_device_selected()));

	// Setup the decoder button
#ifdef ENABLE_DECODE
	QToolButton *add_decoder_button = new QToolButton(this);
	add_decoder_button->setIcon(QIcon::fromTheme("add-decoder",
		QIcon(":/icons/add-decoder.svg")));
	add_decoder_button->setPopupMode(QToolButton::InstantPopup);
	add_decoder_button->setMenu(main_window_.menu_decoder_add());
#endif

	// Setup the menu
	QMenu *const menu = new QMenu(this);

	QMenu *const menu_help = new QMenu;
	menu_help->setTitle(tr("&Help"));
	menu_help->addAction(main_window.action_about());

	menu->addAction(menu_help->menuAction());
	menu->addSeparator();
	menu->addAction(main_window.action_quit());

	menu_button_.setMenu(menu);
	menu_button_.setPopupMode(QToolButton::InstantPopup);
	menu_button_.setIcon(QIcon::fromTheme("menu",
		QIcon(":/icons/menu.svg")));

	// Setup the toolbar
	addWidget(open_button);
	addWidget(save_button);
	addSeparator();
	addAction(main_window.action_view_zoom_in());
	addAction(main_window.action_view_zoom_out());
	addAction(main_window.action_view_zoom_fit());
	addAction(main_window.action_view_zoom_one_to_one());
	addSeparator();
	addAction(main_window.action_view_show_cursors());
	addSeparator();

	connect(&run_stop_button_, SIGNAL(clicked()),
		this, SLOT(on_run_stop()));
	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_);
#ifdef ENABLE_DECODE
	addSeparator();
	addWidget(add_decoder_button);
#endif

	QWidget *const spacer = new QWidget();
	spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
	addWidget(spacer);

	addWidget(&menu_button_);

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

void MainBar::update_device_list()
{
	DeviceManager &mgr = session_.device_manager();
	shared_ptr<devices::Device> selected_device = session_.device();
	list< shared_ptr<devices::Device> > devs;

	copy(mgr.devices().begin(), mgr.devices().end(), back_inserter(devs));

	if (std::find(devs.begin(), devs.end(), selected_device) == devs.end())
		devs.push_back(selected_device);
	assert(selected_device);

	device_selector_.set_device_list(devs, selected_device);
	update_device_config_widgets();
}


void MainBar::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 MainBar::update_sample_rate_selector()
{
	Glib::VariantContainerBase gvar_dict;
	GVariant *gvar_list;
	const uint64_t *elements = NULL;
	gsize num_elements;
	map< const ConfigKey*, std::set<Capability> > keys;

	if (updating_sample_rate_)
		return;

	const shared_ptr<devices::Device> device =
		device_selector_.selected_device();
	if (!device)
		return;

	assert(!updating_sample_rate_);
	updating_sample_rate_ = true;

	const shared_ptr<sigrok::Device> sr_dev = device->device();

	try {
		keys = sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS);
	} catch (Error) {}

	const auto iter = keys.find(ConfigKey::SAMPLERATE);
	if (iter != keys.end() &&
		(*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
		try {
			gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
		} catch(const sigrok::Error &e) {
			// Failed to enunmerate samplerate
			(void)e;
		}
	}

	if (!gvar_dict.gobj()) {
		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 MainBar::update_sample_rate_selector_value()
{
	if (updating_sample_rate_)
		return;

	const shared_ptr<devices::Device> device =
		device_selector_.selected_device();
	if (!device)
		return;

	try {
		auto gvar = device->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 MainBar::update_sample_count_selector()
{
	if (updating_sample_count_)
		return;

	const shared_ptr<devices::Device> device =
		device_selector_.selected_device();
	if (!device)
		return;

	const shared_ptr<sigrok::Device> sr_dev = device->device();

	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 = sr_dev->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()) {
		try {
			auto gvar =
				sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
			if (gvar.gobj())
				g_variant_get(gvar.gobj(), "(tt)",
					&min_sample_count, &max_sample_count);
		} catch(const sigrok::Error &e) {
			// Failed to query sample limit
			(void)e;
		}
	}

	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 = sr_dev->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 MainBar::update_device_config_widgets()
{
	using namespace pv::popups;

	const shared_ptr<devices::Device> device =
		device_selector_.selected_device();
	if (!device)
		return;

	const shared_ptr<sigrok::Device> sr_dev = device->device();
	if (!sr_dev)
		return;

	// Update the configure popup
	DeviceOptions *const opts = new DeviceOptions(sr_dev, 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 : sr_dev->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))
				{
					sr_dev->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 MainBar::commit_sample_count()
{
	uint64_t sample_count = 0;

	if (updating_sample_count_)
		return;

	const shared_ptr<devices::Device> device =
		device_selector_.selected_device();
	if (!device)
		return;

	const shared_ptr<sigrok::Device> sr_dev = device->device();

	sample_count = sample_count_.value();

	// Set the sample count
	assert(!updating_sample_count_);
	updating_sample_count_ = true;
	if (sample_count_supported_)
	{
		try {
			sr_dev->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 MainBar::commit_sample_rate()
{
	uint64_t sample_rate = 0;

	if (updating_sample_rate_)
		return;

	const shared_ptr<devices::Device> device =
		device_selector_.selected_device();
	if (!device)
		return;

	const shared_ptr<sigrok::Device> sr_dev = device->device();

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

	// Set the samplerate
	assert(!updating_sample_rate_);
	updating_sample_rate_ = true;
	try {
		sr_dev->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 MainBar::on_device_selected()
{
	shared_ptr<devices::Device> device = device_selector_.selected_device();
	if (!device)
		return;

	main_window_.select_device(device);

	update_device_config_widgets();
}

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

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

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

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

bool MainBar::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
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012-2015 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 <algorithm>
	24	#include <cassert>
	25
	26	#include <QAction>
	27	#include <QDebug>
	28	#include <QHelpEvent>
	29	#include <QMenu>
	30	#include <QToolTip>
	31
	32	#include "mainbar.hpp"
	33
	34	#include <pv/devicemanager.hpp>
	35	#include <pv/devices/hardwaredevice.hpp>
	36	#include <pv/mainwindow.hpp>
	37	#include <pv/popups/deviceoptions.hpp>
	38	#include <pv/popups/channels.hpp>
	39	#include <pv/util.hpp>
	40	#include <pv/widgets/exportmenu.hpp>
	41	#include <pv/widgets/importmenu.hpp>
	42
	43	#include <libsigrokcxx/libsigrokcxx.hpp>
	44
	45	using std::back_inserter;
	46	using std::copy;
	47	using std::list;
	48	using std::map;
	49	using std::max;
	50	using std::min;
	51	using std::shared_ptr;
	52	using std::string;
	53	using std::vector;
	54
	55	using sigrok::Capability;
	56	using sigrok::ConfigKey;
	57	using sigrok::Error;
	58	using sigrok::InputFormat;
	59
	60	namespace pv {
	61	namespace toolbars {
	62
	63	const uint64_t MainBar::MinSampleCount = 100ULL;
	64	const uint64_t MainBar::MaxSampleCount = 1000000000000ULL;
	65	const uint64_t MainBar::DefaultSampleCount = 1000000;
	66
	67	MainBar::MainBar(Session &session, MainWindow &main_window) :
	68	QToolBar("Sampling Bar", &main_window),
	69	session_(session),
	70	main_window_(main_window),
	71	device_selector_(this, session.device_manager(),
	72	main_window.action_connect()),
	73	configure_button_(this),
	74	configure_button_action_(NULL),
	75	channels_button_(this),
	76	sample_count_(" samples", this),
	77	sample_rate_("Hz", this),
	78	updating_sample_rate_(false),
	79	updating_sample_count_(false),
	80	sample_count_supported_(false),
	81	icon_red_(":/icons/status-red.svg"),
	82	icon_green_(":/icons/status-green.svg"),
	83	icon_grey_(":/icons/status-grey.svg"),
	84	run_stop_button_(this),
	85	menu_button_(this)
	86	{
	87	setObjectName(QString::fromUtf8("MainBar"));
	88
	89	setMovable(false);
	90	setFloatable(false);
	91	setContextMenuPolicy(Qt::PreventContextMenu);
	92
	93	// Open button
	94	QToolButton *const open_button = new QToolButton(this);
	95
	96	widgets::ImportMenu *import_menu = new widgets::ImportMenu(this,
	97	session.device_manager().context(),
	98	main_window.action_open());
	99	connect(import_menu,
	100	SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
	101	&main_window_,
	102	SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
	103
	104	open_button->setMenu(import_menu);
	105	open_button->setDefaultAction(main_window.action_open());
	106	open_button->setPopupMode(QToolButton::MenuButtonPopup);
	107
	108	// Save button
	109	QToolButton *const save_button = new QToolButton(this);
	110
	111	widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
	112	session.device_manager().context(),
	113	main_window.action_save_as());
	114	connect(export_menu,
	115	SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
	116	&main_window_,
	117	SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
	118
	119	save_button->setMenu(export_menu);
	120	save_button->setDefaultAction(main_window.action_save_as());
	121	save_button->setPopupMode(QToolButton::MenuButtonPopup);
	122
	123	// Device selector menu
	124	connect(&device_selector_, SIGNAL(device_selected()),
	125	this, SLOT(on_device_selected()));
	126
	127	// Setup the decoder button
	128	#ifdef ENABLE_DECODE
	129	QToolButton *add_decoder_button = new QToolButton(this);
	130	add_decoder_button->setIcon(QIcon::fromTheme("add-decoder",
	131	QIcon(":/icons/add-decoder.svg")));
	132	add_decoder_button->setPopupMode(QToolButton::InstantPopup);
	133	add_decoder_button->setMenu(main_window_.menu_decoder_add());
	134	#endif
	135
	136	// Setup the menu
	137	QMenu *const menu = new QMenu(this);
	138
	139	QMenu *const menu_help = new QMenu;
	140	menu_help->setTitle(tr("&Help"));
	141	menu_help->addAction(main_window.action_about());
	142
	143	menu->addAction(menu_help->menuAction());
	144	menu->addSeparator();
	145	menu->addAction(main_window.action_quit());
	146
	147	menu_button_.setMenu(menu);
	148	menu_button_.setPopupMode(QToolButton::InstantPopup);
	149	menu_button_.setIcon(QIcon::fromTheme("menu",
	150	QIcon(":/icons/menu.svg")));
	151
	152	// Setup the toolbar
	153	addWidget(open_button);
	154	addWidget(save_button);
	155	addSeparator();
	156	addAction(main_window.action_view_zoom_in());
	157	addAction(main_window.action_view_zoom_out());
	158	addAction(main_window.action_view_zoom_fit());
	159	addAction(main_window.action_view_zoom_one_to_one());
	160	addSeparator();
	161	addAction(main_window.action_view_show_cursors());
	162	addSeparator();
	163
	164	connect(&run_stop_button_, SIGNAL(clicked()),
	165	this, SLOT(on_run_stop()));
	166	connect(&sample_count_, SIGNAL(value_changed()),
	167	this, SLOT(on_sample_count_changed()));
	168	connect(&sample_rate_, SIGNAL(value_changed()),
	169	this, SLOT(on_sample_rate_changed()));
	170
	171	sample_count_.show_min_max_step(0, UINT64_MAX, 1);
	172
	173	set_capture_state(pv::Session::Stopped);
	174
	175	configure_button_.setIcon(QIcon::fromTheme("configure",
	176	QIcon(":/icons/configure.png")));
	177
	178	channels_button_.setIcon(QIcon::fromTheme("channels",
	179	QIcon(":/icons/channels.svg")));
	180
	181	run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
	182
	183	addWidget(&device_selector_);
	184	configure_button_action_ = addWidget(&configure_button_);
	185	addWidget(&channels_button_);
	186	addWidget(&sample_count_);
	187	addWidget(&sample_rate_);
	188	addWidget(&run_stop_button_);
	189	#ifdef ENABLE_DECODE
	190	addSeparator();
	191	addWidget(add_decoder_button);
	192	#endif
	193
	194	QWidget *const spacer = new QWidget();
	195	spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
	196	addWidget(spacer);
	197
	198	addWidget(&menu_button_);
	199
	200	sample_count_.installEventFilter(this);
	201	sample_rate_.installEventFilter(this);
	202	}
	203
	204	void MainBar::update_device_list()
	205	{
	206	DeviceManager &mgr = session_.device_manager();
	207	shared_ptr<devices::Device> selected_device = session_.device();
	208	list< shared_ptr<devices::Device> > devs;
	209
	210	copy(mgr.devices().begin(), mgr.devices().end(), back_inserter(devs));
	211
	212	if (std::find(devs.begin(), devs.end(), selected_device) == devs.end())
	213	devs.push_back(selected_device);
	214	assert(selected_device);
	215
	216	device_selector_.set_device_list(devs, selected_device);
	217	update_device_config_widgets();
	218	}
	219
	220
	221	void MainBar::set_capture_state(pv::Session::capture_state state)
	222	{
	223	const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
	224	run_stop_button_.setIcon(*icons[state]);
	225	run_stop_button_.setText((state == pv::Session::Stopped) ?
	226	tr("Run") : tr("Stop"));
	227	run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space));
	228	}
	229
	230	void MainBar::update_sample_rate_selector()
	231	{
	232	Glib::VariantContainerBase gvar_dict;
	233	GVariant *gvar_list;
	234	const uint64_t *elements = NULL;
	235	gsize num_elements;
	236	map< const ConfigKey*, std::set<Capability> > keys;
	237
	238	if (updating_sample_rate_)
	239	return;
	240
	241	const shared_ptr<devices::Device> device =
	242	device_selector_.selected_device();
	243	if (!device)
	244	return;
	245
	246	assert(!updating_sample_rate_);
	247	updating_sample_rate_ = true;
	248
	249	const shared_ptr<sigrok::Device> sr_dev = device->device();
	250
	251	try {
	252	keys = sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS);
	253	} catch (Error) {}
	254
	255	const auto iter = keys.find(ConfigKey::SAMPLERATE);
	256	if (iter != keys.end() &&
	257	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
	258	try {
	259	gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
	260	} catch(const sigrok::Error &e) {
	261	// Failed to enunmerate samplerate
	262	(void)e;
	263	}
	264	}
	265
	266	if (!gvar_dict.gobj()) {
	267	sample_rate_.show_none();
	268	updating_sample_rate_ = false;
	269	return;
	270	}
	271
	272	if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
	273	"samplerate-steps", G_VARIANT_TYPE("at"))))
	274	{
	275	elements = (const uint64_t *)g_variant_get_fixed_array(
	276	gvar_list, &num_elements, sizeof(uint64_t));
	277
	278	const uint64_t min = elements[0];
	279	const uint64_t max = elements[1];
	280	const uint64_t step = elements[2];
	281
	282	g_variant_unref(gvar_list);
	283
	284	assert(min > 0);
	285	assert(max > 0);
	286	assert(max > min);
	287	assert(step > 0);
	288
	289	if (step == 1)
	290	sample_rate_.show_125_list(min, max);
	291	else
	292	{
	293	// When the step is not 1, we cam't make a 1-2-5-10
	294	// list of sample rates, because we may not be able to
	295	// make round numbers. Therefore in this case, show a
	296	// spin box.
	297	sample_rate_.show_min_max_step(min, max, step);
	298	}
	299	}
	300	else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
	301	"samplerates", G_VARIANT_TYPE("at"))))
	302	{
	303	elements = (const uint64_t *)g_variant_get_fixed_array(
	304	gvar_list, &num_elements, sizeof(uint64_t));
	305	sample_rate_.show_list(elements, num_elements);
	306	g_variant_unref(gvar_list);
	307	}
	308	updating_sample_rate_ = false;
	309
	310	update_sample_rate_selector_value();
	311	}
	312
	313	void MainBar::update_sample_rate_selector_value()
	314	{
	315	if (updating_sample_rate_)
	316	return;
	317
	318	const shared_ptr<devices::Device> device =
	319	device_selector_.selected_device();
	320	if (!device)
	321	return;
	322
	323	try {
	324	auto gvar = device->device()->config_get(ConfigKey::SAMPLERATE);
	325	uint64_t samplerate =
	326	Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
	327	assert(!updating_sample_rate_);
	328	updating_sample_rate_ = true;
	329	sample_rate_.set_value(samplerate);
	330	updating_sample_rate_ = false;
	331	} catch (Error error) {
	332	qDebug() << "WARNING: Failed to get value of sample rate";
	333	return;
	334	}
	335	}
	336
	337	void MainBar::update_sample_count_selector()
	338	{
	339	if (updating_sample_count_)
	340	return;
	341
	342	const shared_ptr<devices::Device> device =
	343	device_selector_.selected_device();
	344	if (!device)
	345	return;
	346
	347	const shared_ptr<sigrok::Device> sr_dev = device->device();
	348
	349	assert(!updating_sample_count_);
	350	updating_sample_count_ = true;
	351
	352	if (!sample_count_supported_)
	353	{
	354	sample_count_.show_none();
	355	updating_sample_count_ = false;
	356	return;
	357	}
	358
	359	uint64_t sample_count = sample_count_.value();
	360	uint64_t min_sample_count = 0;
	361	uint64_t max_sample_count = MaxSampleCount;
	362
	363	if (sample_count == 0)
	364	sample_count = DefaultSampleCount;
	365
	366	const auto keys = sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS);
	367	const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES);
	368	if (iter != keys.end() &&
	369	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
	370	try {
	371	auto gvar =
	372	sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
	373	if (gvar.gobj())
	374	g_variant_get(gvar.gobj(), "(tt)",
	375	&min_sample_count, &max_sample_count);
	376	} catch(const sigrok::Error &e) {
	377	// Failed to query sample limit
	378	(void)e;
	379	}
	380	}
	381
	382	min_sample_count = min(max(min_sample_count, MinSampleCount),
	383	max_sample_count);
	384
	385	sample_count_.show_125_list(
	386	min_sample_count, max_sample_count);
	387
	388	try {
	389	auto gvar = sr_dev->config_get(ConfigKey::LIMIT_SAMPLES);
	390	sample_count = g_variant_get_uint64(gvar.gobj());
	391	if (sample_count == 0)
	392	sample_count = DefaultSampleCount;
	393	sample_count = min(max(sample_count, MinSampleCount),
	394	max_sample_count);
	395	} catch (Error error) {}
	396
	397	sample_count_.set_value(sample_count);
	398
	399	updating_sample_count_ = false;
	400	}
	401
	402	void MainBar::update_device_config_widgets()
	403	{
	404	using namespace pv::popups;
	405
	406	const shared_ptr<devices::Device> device =
	407	device_selector_.selected_device();
	408	if (!device)
	409	return;
	410
	411	const shared_ptr<sigrok::Device> sr_dev = device->device();
	412	if (!sr_dev)
	413	return;
	414
	415	// Update the configure popup
	416	DeviceOptions *const opts = new DeviceOptions(sr_dev, this);
	417	configure_button_action_->setVisible(
	418	!opts->binding().properties().empty());
	419	configure_button_.set_popup(opts);
	420
	421	// Update the channels popup
	422	Channels *const channels = new Channels(session_, this);
	423	channels_button_.set_popup(channels);
	424
	425	// Update supported options.
	426	sample_count_supported_ = false;
	427
	428	try {
	429	for (auto entry : sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS))
	430	{
	431	auto key = entry.first;
	432	auto capabilities = entry.second;
	433	switch (key->id()) {
	434	case SR_CONF_LIMIT_SAMPLES:
	435	if (capabilities.count(Capability::SET))
	436	sample_count_supported_ = true;
	437	break;
	438	case SR_CONF_LIMIT_FRAMES:
	439	if (capabilities.count(Capability::SET))
	440	{
	441	sr_dev->config_set(ConfigKey::LIMIT_FRAMES,
	442	Glib::Variant<guint64>::create(1));
	443	on_config_changed();
	444	}
	445	break;
	446	default:
	447	break;
	448	}
	449	}
	450	} catch (Error error) {}
	451
	452	// Add notification of reconfigure events
	453	disconnect(this, SLOT(on_config_changed()));
	454	connect(&opts->binding(), SIGNAL(config_changed()),
	455	this, SLOT(on_config_changed()));
	456
	457	// Update sweep timing widgets.
	458	update_sample_count_selector();
	459	update_sample_rate_selector();
	460	}
	461
	462	void MainBar::commit_sample_count()
	463	{
	464	uint64_t sample_count = 0;
	465
	466	if (updating_sample_count_)
	467	return;
	468
	469	const shared_ptr<devices::Device> device =
	470	device_selector_.selected_device();
	471	if (!device)
	472	return;
	473
	474	const shared_ptr<sigrok::Device> sr_dev = device->device();
	475
	476	sample_count = sample_count_.value();
	477
	478	// Set the sample count
	479	assert(!updating_sample_count_);
	480	updating_sample_count_ = true;
	481	if (sample_count_supported_)
	482	{
	483	try {
	484	sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
	485	Glib::Variant<guint64>::create(sample_count));
	486	on_config_changed();
	487	} catch (Error error) {
	488	qDebug() << "Failed to configure sample count.";
	489	return;
	490	}
	491	}
	492	updating_sample_count_ = false;
	493	}
	494
	495	void MainBar::commit_sample_rate()
	496	{
	497	uint64_t sample_rate = 0;
	498
	499	if (updating_sample_rate_)
	500	return;
	501
	502	const shared_ptr<devices::Device> device =
	503	device_selector_.selected_device();
	504	if (!device)
	505	return;
	506
	507	const shared_ptr<sigrok::Device> sr_dev = device->device();
	508
	509	sample_rate = sample_rate_.value();
	510	if (sample_rate == 0)
	511	return;
	512
	513	// Set the samplerate
	514	assert(!updating_sample_rate_);
	515	updating_sample_rate_ = true;
	516	try {
	517	sr_dev->config_set(ConfigKey::SAMPLERATE,
	518	Glib::Variant<guint64>::create(sample_rate));
	519	on_config_changed();
	520	} catch (Error error) {
	521	qDebug() << "Failed to configure samplerate.";
	522	return;
	523	}
	524	updating_sample_rate_ = false;
	525	}
	526
	527	void MainBar::on_device_selected()
	528	{
	529	shared_ptr<devices::Device> device = device_selector_.selected_device();
	530	if (!device)
	531	return;
	532
	533	main_window_.select_device(device);
	534
	535	update_device_config_widgets();
	536	}
	537
	538	void MainBar::on_sample_count_changed()
	539	{
	540	commit_sample_count();
	541	}
	542
	543	void MainBar::on_sample_rate_changed()
	544	{
	545	commit_sample_rate();
	546	}
	547
	548	void MainBar::on_run_stop()
	549	{
	550	commit_sample_count();
	551	commit_sample_rate();
	552	main_window_.run_stop();
	553	}
	554
	555	void MainBar::on_config_changed()
	556	{
	557	commit_sample_count();
	558	update_sample_count_selector();
	559	commit_sample_rate();
	560	update_sample_rate_selector();
	561	}
	562
	563	bool MainBar::eventFilter(QObject watched, QEvent event)
	564	{
	565	if ((watched == &sample_count_ \|\| watched == &sample_rate_) &&
	566	(event->type() == QEvent::ToolTip)) {
	567	double sec = (double)sample_count_.value() / sample_rate_.value();
	568	QHelpEvent help_event = static_cast<QHelpEvent>(event);
	569
	570	QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec));
	571	QToolTip::showText(help_event->globalPos(), str);
	572
	573	return true;
	574	}
	575
	576	return false;
	577	}
	578
	579	} // namespace toolbars
	580	} // namespace pv