[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_(nullptr),
	channels_button_(this),
	channels_button_action_(nullptr),
	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),
	run_stop_button_action_(nullptr),
	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 burger menu
	QMenu *const menu = new QMenu(this);

	QMenu *const menu_view = new QMenu;
	menu_view->setTitle(tr("&View"));
	menu_view->addAction(main_window.action_view_sticky_scrolling());

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

	menu->addAction(menu_view->menuAction());
	menu->addSeparator();
	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_);
	channels_button_action_ = addWidget(&channels_button_);
	addWidget(&sample_count_);
	addWidget(&sample_rate_);
	run_stop_button_action_ = 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);

	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 = nullptr;
	gsize num_elements;
	map< const ConfigKey*, std::set<Capability> > keys;

	if (updating_sample_rate_) {
		sample_rate_.show_none();
		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();

	// Hide the widgets if no device is selected
	channels_button_action_->setVisible(!!device);
	run_stop_button_action_->setVisible(!!device);
	if (!device) {
		configure_button_action_->setVisible(false);
		sample_count_.show_none();
		sample_rate_.show_none();
		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;

	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();
	if (sample_count_supported_)
	{
		try {
			sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
				Glib::Variant<guint64>::create(sample_count));
			update_sample_count_selector();
		} catch (Error error) {
			qDebug() << "Failed to configure sample count.";
			return;
		}
	}

	// Devices with built-in memory might impose limits on certain
	// configurations, so let's check what sample rate the driver
	// lets us use now.
	update_sample_rate_selector();
}

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

	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;

	try {
		sr_dev->config_set(ConfigKey::SAMPLERATE,
			Glib::Variant<guint64>::create(sample_rate));
		update_sample_rate_selector();
	} catch (Error error) {
		qDebug() << "Failed to configure samplerate.";
		return;
	}

	// Devices with built-in memory might impose limits on certain
	// configurations, so let's check what sample count the driver
	// lets us use now.
	update_sample_count_selector();
}

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()
{
	if (!updating_sample_count_)
		commit_sample_count();
}

void MainBar::on_sample_rate_changed()
{
	if (!updating_sample_rate_)
		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();
	commit_sample_rate();	
}

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_(nullptr),
	75	channels_button_(this),
	76	channels_button_action_(nullptr),
	77	sample_count_(" samples", this),
	78	sample_rate_("Hz", this),
	79	updating_sample_rate_(false),
	80	updating_sample_count_(false),
	81	sample_count_supported_(false),
	82	icon_red_(":/icons/status-red.svg"),
	83	icon_green_(":/icons/status-green.svg"),
	84	icon_grey_(":/icons/status-grey.svg"),
	85	run_stop_button_(this),
	86	run_stop_button_action_(nullptr),
	87	menu_button_(this)
	88	{
	89	setObjectName(QString::fromUtf8("MainBar"));
	90
	91	setMovable(false);
	92	setFloatable(false);
	93	setContextMenuPolicy(Qt::PreventContextMenu);
	94
	95	// Open button
	96	QToolButton *const open_button = new QToolButton(this);
	97
	98	widgets::ImportMenu *import_menu = new widgets::ImportMenu(this,
	99	session.device_manager().context(),
	100	main_window.action_open());
	101	connect(import_menu,
	102	SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
	103	&main_window_,
	104	SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
	105
	106	open_button->setMenu(import_menu);
	107	open_button->setDefaultAction(main_window.action_open());
	108	open_button->setPopupMode(QToolButton::MenuButtonPopup);
	109
	110	// Save button
	111	QToolButton *const save_button = new QToolButton(this);
	112
	113	widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
	114	session.device_manager().context(),
	115	main_window.action_save_as());
	116	connect(export_menu,
	117	SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
	118	&main_window_,
	119	SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
	120
	121	save_button->setMenu(export_menu);
	122	save_button->setDefaultAction(main_window.action_save_as());
	123	save_button->setPopupMode(QToolButton::MenuButtonPopup);
	124
	125	// Device selector menu
	126	connect(&device_selector_, SIGNAL(device_selected()),
	127	this, SLOT(on_device_selected()));
	128
	129	// Setup the decoder button
	130	#ifdef ENABLE_DECODE
	131	QToolButton *add_decoder_button = new QToolButton(this);
	132	add_decoder_button->setIcon(QIcon::fromTheme("add-decoder",
	133	QIcon(":/icons/add-decoder.svg")));
	134	add_decoder_button->setPopupMode(QToolButton::InstantPopup);
	135	add_decoder_button->setMenu(main_window_.menu_decoder_add());
	136	#endif
	137
	138	// Setup the burger menu
	139	QMenu *const menu = new QMenu(this);
	140
	141	QMenu *const menu_view = new QMenu;
	142	menu_view->setTitle(tr("&View"));
	143	menu_view->addAction(main_window.action_view_sticky_scrolling());
	144
	145	QMenu *const menu_help = new QMenu;
	146	menu_help->setTitle(tr("&Help"));
	147	menu_help->addAction(main_window.action_about());
	148
	149	menu->addAction(menu_view->menuAction());
	150	menu->addSeparator();
	151	menu->addAction(menu_help->menuAction());
	152	menu->addSeparator();
	153	menu->addAction(main_window.action_quit());
	154
	155	menu_button_.setMenu(menu);
	156	menu_button_.setPopupMode(QToolButton::InstantPopup);
	157	menu_button_.setIcon(QIcon::fromTheme("menu",
	158	QIcon(":/icons/menu.svg")));
	159
	160	// Setup the toolbar
	161	addWidget(open_button);
	162	addWidget(save_button);
	163	addSeparator();
	164	addAction(main_window.action_view_zoom_in());
	165	addAction(main_window.action_view_zoom_out());
	166	addAction(main_window.action_view_zoom_fit());
	167	addAction(main_window.action_view_zoom_one_to_one());
	168	addSeparator();
	169	addAction(main_window.action_view_show_cursors());
	170	addSeparator();
	171
	172	connect(&run_stop_button_, SIGNAL(clicked()),
	173	this, SLOT(on_run_stop()));
	174	connect(&sample_count_, SIGNAL(value_changed()),
	175	this, SLOT(on_sample_count_changed()));
	176	connect(&sample_rate_, SIGNAL(value_changed()),
	177	this, SLOT(on_sample_rate_changed()));
	178
	179	sample_count_.show_min_max_step(0, UINT64_MAX, 1);
	180
	181	set_capture_state(pv::Session::Stopped);
	182
	183	configure_button_.setIcon(QIcon::fromTheme("configure",
	184	QIcon(":/icons/configure.png")));
	185
	186	channels_button_.setIcon(QIcon::fromTheme("channels",
	187	QIcon(":/icons/channels.svg")));
	188
	189	run_stop_button_.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
	190
	191	addWidget(&device_selector_);
	192	configure_button_action_ = addWidget(&configure_button_);
	193	channels_button_action_ = addWidget(&channels_button_);
	194	addWidget(&sample_count_);
	195	addWidget(&sample_rate_);
	196	run_stop_button_action_ = addWidget(&run_stop_button_);
	197	#ifdef ENABLE_DECODE
	198	addSeparator();
	199	addWidget(add_decoder_button);
	200	#endif
	201
	202	QWidget *const spacer = new QWidget();
	203	spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
	204	addWidget(spacer);
	205
	206	addWidget(&menu_button_);
	207
	208	sample_count_.installEventFilter(this);
	209	sample_rate_.installEventFilter(this);
	210	}
	211
	212	void MainBar::update_device_list()
	213	{
	214	DeviceManager &mgr = session_.device_manager();
	215	shared_ptr<devices::Device> selected_device = session_.device();
	216	list< shared_ptr<devices::Device> > devs;
	217
	218	copy(mgr.devices().begin(), mgr.devices().end(), back_inserter(devs));
	219
	220	if (std::find(devs.begin(), devs.end(), selected_device) == devs.end())
	221	devs.push_back(selected_device);
	222
	223	device_selector_.set_device_list(devs, selected_device);
	224	update_device_config_widgets();
	225	}
	226
	227
	228	void MainBar::set_capture_state(pv::Session::capture_state state)
	229	{
	230	const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
	231	run_stop_button_.setIcon(*icons[state]);
	232	run_stop_button_.setText((state == pv::Session::Stopped) ?
	233	tr("Run") : tr("Stop"));
	234	run_stop_button_.setShortcut(QKeySequence(Qt::Key_Space));
	235	}
	236
	237	void MainBar::update_sample_rate_selector()
	238	{
	239	Glib::VariantContainerBase gvar_dict;
	240	GVariant *gvar_list;
	241	const uint64_t *elements = nullptr;
	242	gsize num_elements;
	243	map< const ConfigKey*, std::set<Capability> > keys;
	244
	245	if (updating_sample_rate_) {
	246	sample_rate_.show_none();
	247	return;
	248	}
	249
	250	const shared_ptr<devices::Device> device =
	251	device_selector_.selected_device();
	252	if (!device)
	253	return;
	254
	255	assert(!updating_sample_rate_);
	256	updating_sample_rate_ = true;
	257
	258	const shared_ptr<sigrok::Device> sr_dev = device->device();
	259
	260	try {
	261	keys = sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS);
	262	} catch (Error) {}
	263
	264	const auto iter = keys.find(ConfigKey::SAMPLERATE);
	265	if (iter != keys.end() &&
	266	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
	267	try {
	268	gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
	269	} catch(const sigrok::Error &e) {
	270	// Failed to enunmerate samplerate
	271	(void)e;
	272	}
	273	}
	274
	275	if (!gvar_dict.gobj()) {
	276	sample_rate_.show_none();
	277	updating_sample_rate_ = false;
	278	return;
	279	}
	280
	281	if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
	282	"samplerate-steps", G_VARIANT_TYPE("at"))))
	283	{
	284	elements = (const uint64_t *)g_variant_get_fixed_array(
	285	gvar_list, &num_elements, sizeof(uint64_t));
	286
	287	const uint64_t min = elements[0];
	288	const uint64_t max = elements[1];
	289	const uint64_t step = elements[2];
	290
	291	g_variant_unref(gvar_list);
	292
	293	assert(min > 0);
	294	assert(max > 0);
	295	assert(max > min);
	296	assert(step > 0);
	297
	298	if (step == 1)
	299	sample_rate_.show_125_list(min, max);
	300	else
	301	{
	302	// When the step is not 1, we cam't make a 1-2-5-10
	303	// list of sample rates, because we may not be able to
	304	// make round numbers. Therefore in this case, show a
	305	// spin box.
	306	sample_rate_.show_min_max_step(min, max, step);
	307	}
	308	}
	309	else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
	310	"samplerates", G_VARIANT_TYPE("at"))))
	311	{
	312	elements = (const uint64_t *)g_variant_get_fixed_array(
	313	gvar_list, &num_elements, sizeof(uint64_t));
	314	sample_rate_.show_list(elements, num_elements);
	315	g_variant_unref(gvar_list);
	316	}
	317	updating_sample_rate_ = false;
	318
	319	update_sample_rate_selector_value();
	320	}
	321
	322	void MainBar::update_sample_rate_selector_value()
	323	{
	324	if (updating_sample_rate_)
	325	return;
	326
	327	const shared_ptr<devices::Device> device =
	328	device_selector_.selected_device();
	329	if (!device)
	330	return;
	331
	332	try {
	333	auto gvar = device->device()->config_get(ConfigKey::SAMPLERATE);
	334	uint64_t samplerate =
	335	Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
	336	assert(!updating_sample_rate_);
	337	updating_sample_rate_ = true;
	338	sample_rate_.set_value(samplerate);
	339	updating_sample_rate_ = false;
	340	} catch (Error error) {
	341	qDebug() << "WARNING: Failed to get value of sample rate";
	342	return;
	343	}
	344	}
	345
	346	void MainBar::update_sample_count_selector()
	347	{
	348	if (updating_sample_count_)
	349	return;
	350
	351	const shared_ptr<devices::Device> device =
	352	device_selector_.selected_device();
	353	if (!device)
	354	return;
	355
	356	const shared_ptr<sigrok::Device> sr_dev = device->device();
	357
	358	assert(!updating_sample_count_);
	359	updating_sample_count_ = true;
	360
	361	if (!sample_count_supported_)
	362	{
	363	sample_count_.show_none();
	364	updating_sample_count_ = false;
	365	return;
	366	}
	367
	368	uint64_t sample_count = sample_count_.value();
	369	uint64_t min_sample_count = 0;
	370	uint64_t max_sample_count = MaxSampleCount;
	371
	372	if (sample_count == 0)
	373	sample_count = DefaultSampleCount;
	374
	375	const auto keys = sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS);
	376	const auto iter = keys.find(ConfigKey::LIMIT_SAMPLES);
	377	if (iter != keys.end() &&
	378	(iter).second.find(sigrok::LIST) != (iter).second.end()) {
	379	try {
	380	auto gvar =
	381	sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
	382	if (gvar.gobj())
	383	g_variant_get(gvar.gobj(), "(tt)",
	384	&min_sample_count, &max_sample_count);
	385	} catch(const sigrok::Error &e) {
	386	// Failed to query sample limit
	387	(void)e;
	388	}
	389	}
	390
	391	min_sample_count = min(max(min_sample_count, MinSampleCount),
	392	max_sample_count);
	393
	394	sample_count_.show_125_list(
	395	min_sample_count, max_sample_count);
	396
	397	try {
	398	auto gvar = sr_dev->config_get(ConfigKey::LIMIT_SAMPLES);
	399	sample_count = g_variant_get_uint64(gvar.gobj());
	400	if (sample_count == 0)
	401	sample_count = DefaultSampleCount;
	402	sample_count = min(max(sample_count, MinSampleCount),
	403	max_sample_count);
	404	} catch (Error error) {}
	405
	406	sample_count_.set_value(sample_count);
	407
	408	updating_sample_count_ = false;
	409	}
	410
	411	void MainBar::update_device_config_widgets()
	412	{
	413	using namespace pv::popups;
	414
	415	const shared_ptr<devices::Device> device =
	416	device_selector_.selected_device();
	417
	418	// Hide the widgets if no device is selected
	419	channels_button_action_->setVisible(!!device);
	420	run_stop_button_action_->setVisible(!!device);
	421	if (!device) {
	422	configure_button_action_->setVisible(false);
	423	sample_count_.show_none();
	424	sample_rate_.show_none();
	425	return;
	426	}
	427
	428	const shared_ptr<sigrok::Device> sr_dev = device->device();
	429	if (!sr_dev)
	430	return;
	431
	432	// Update the configure popup
	433	DeviceOptions *const opts = new DeviceOptions(sr_dev, this);
	434	configure_button_action_->setVisible(
	435	!opts->binding().properties().empty());
	436	configure_button_.set_popup(opts);
	437
	438	// Update the channels popup
	439	Channels *const channels = new Channels(session_, this);
	440	channels_button_.set_popup(channels);
	441
	442	// Update supported options.
	443	sample_count_supported_ = false;
	444
	445	try {
	446	for (auto entry : sr_dev->config_keys(ConfigKey::DEVICE_OPTIONS))
	447	{
	448	auto key = entry.first;
	449	auto capabilities = entry.second;
	450	switch (key->id()) {
	451	case SR_CONF_LIMIT_SAMPLES:
	452	if (capabilities.count(Capability::SET))
	453	sample_count_supported_ = true;
	454	break;
	455	case SR_CONF_LIMIT_FRAMES:
	456	if (capabilities.count(Capability::SET))
	457	{
	458	sr_dev->config_set(ConfigKey::LIMIT_FRAMES,
	459	Glib::Variant<guint64>::create(1));
	460	on_config_changed();
	461	}
	462	break;
	463	default:
	464	break;
	465	}
	466	}
	467	} catch (Error error) {}
	468
	469	// Add notification of reconfigure events
	470	disconnect(this, SLOT(on_config_changed()));
	471	connect(&opts->binding(), SIGNAL(config_changed()),
	472	this, SLOT(on_config_changed()));
	473
	474	// Update sweep timing widgets.
	475	update_sample_count_selector();
	476	update_sample_rate_selector();
	477	}
	478
	479	void MainBar::commit_sample_count()
	480	{
	481	uint64_t sample_count = 0;
	482
	483	const shared_ptr<devices::Device> device =
	484	device_selector_.selected_device();
	485	if (!device)
	486	return;
	487
	488	const shared_ptr<sigrok::Device> sr_dev = device->device();
	489
	490	sample_count = sample_count_.value();
	491	if (sample_count_supported_)
	492	{
	493	try {
	494	sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
	495	Glib::Variant<guint64>::create(sample_count));
	496	update_sample_count_selector();
	497	} catch (Error error) {
	498	qDebug() << "Failed to configure sample count.";
	499	return;
	500	}
	501	}
	502
	503	// Devices with built-in memory might impose limits on certain
	504	// configurations, so let's check what sample rate the driver
	505	// lets us use now.
	506	update_sample_rate_selector();
	507	}
	508
	509	void MainBar::commit_sample_rate()
	510	{
	511	uint64_t sample_rate = 0;
	512
	513	const shared_ptr<devices::Device> device =
	514	device_selector_.selected_device();
	515	if (!device)
	516	return;
	517
	518	const shared_ptr<sigrok::Device> sr_dev = device->device();
	519
	520	sample_rate = sample_rate_.value();
	521	if (sample_rate == 0)
	522	return;
	523
	524	try {
	525	sr_dev->config_set(ConfigKey::SAMPLERATE,
	526	Glib::Variant<guint64>::create(sample_rate));
	527	update_sample_rate_selector();
	528	} catch (Error error) {
	529	qDebug() << "Failed to configure samplerate.";
	530	return;
	531	}
	532
	533	// Devices with built-in memory might impose limits on certain
	534	// configurations, so let's check what sample count the driver
	535	// lets us use now.
	536	update_sample_count_selector();
	537	}
	538
	539	void MainBar::on_device_selected()
	540	{
	541	shared_ptr<devices::Device> device = device_selector_.selected_device();
	542	if (!device)
	543	return;
	544
	545	main_window_.select_device(device);
	546
	547	update_device_config_widgets();
	548	}
	549
	550	void MainBar::on_sample_count_changed()
	551	{
	552	if (!updating_sample_count_)
	553	commit_sample_count();
	554	}
	555
	556	void MainBar::on_sample_rate_changed()
	557	{
	558	if (!updating_sample_rate_)
	559	commit_sample_rate();
	560	}
	561
	562	void MainBar::on_run_stop()
	563	{
	564	commit_sample_count();
	565	commit_sample_rate();
	566	main_window_.run_stop();
	567	}
	568
	569	void MainBar::on_config_changed()
	570	{
	571	commit_sample_count();
	572	commit_sample_rate();
	573	}
	574
	575	bool MainBar::eventFilter(QObject watched, QEvent event)
	576	{
	577	if ((watched == &sample_count_ \|\| watched == &sample_rate_) &&
	578	(event->type() == QEvent::ToolTip)) {
	579	double sec = (double)sample_count_.value() / sample_rate_.value();
	580	QHelpEvent help_event = static_cast<QHelpEvent>(event);
	581
	582	QString str = tr("Total sampling time: %1").arg(pv::util::format_second(sec));
	583	QToolTip::showText(help_event->globalPos(), str);
	584
	585	return true;
	586	}
	587
	588	return false;
	589	}
	590
	591	} // namespace toolbars
	592	} // namespace pv