[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);

	vector<QAction *> open_actions;
	open_actions.push_back(main_window.action_save_as());
	open_actions.push_back(main_window.action_save_selection_as());

	widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
		session.device_manager().context(),
		open_actions);
	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());
	menu_view->addSeparator();
	menu_view->addAction(main_window.action_view_coloured_bg());

	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));

	bool ui_enabled = (state == pv::Session::Stopped) ? true : false;

	device_selector_.setEnabled(ui_enabled);
	configure_button_.setEnabled(ui_enabled);
	channels_button_.setEnabled(ui_enabled);
	sample_count_.setEnabled(ui_enabled);
	sample_rate_.setEnabled(ui_enabled);
}

void MainBar::reset_device_selector()
{
	device_selector_.reset();
}

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();

	if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
		gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
	} else {
		sample_rate_.show_none();
		updating_sample_rate_ = false;
		return;
	}

	if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
			"samplerate-steps", G_VARIANT_TYPE("at")))) {
		elements = (const uint64_t *)g_variant_get_fixed_array(
				gvar_list, &num_elements, sizeof(uint64_t));

		const uint64_t min = elements[0];
		const uint64_t max = elements[1];
		const uint64_t step = elements[2];

		g_variant_unref(gvar_list);

		assert(min > 0);
		assert(max > 0);
		assert(max > min);
		assert(step > 0);

		if (step == 1)
			sample_rate_.show_125_list(min, max);
		else {
			// When the step is not 1, we cam't make a 1-2-5-10
			// list of sample rates, because we may not be able to
			// make round numbers. Therefore in this case, show a
			// spin box.
			sample_rate_.show_min_max_step(min, max, step);
		}
	} else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
			"samplerates", G_VARIANT_TYPE("at")))) {
		elements = (const uint64_t *)g_variant_get_fixed_array(
				gvar_list, &num_elements, sizeof(uint64_t));
		sample_rate_.show_list(elements, num_elements);
		g_variant_unref(gvar_list);
	}
	updating_sample_rate_ = false;

	update_sample_rate_selector_value();
}

void 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;

	if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::LIST)) {
		auto gvar = sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
		if (gvar.gobj())
			g_variant_get(gvar.gobj(), "(tt)",
				&min_sample_count, &max_sample_count);
	}

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

	sample_count_.show_125_list(
		min_sample_count, max_sample_count);

	if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::GET)) {
		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);
	}

	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;

	if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::SET))
		sample_count_supported_ = true;

	if (sr_dev->config_check(ConfigKey::LIMIT_FRAMES, Capability::SET)) {
		sr_dev->config_set(ConfigKey::LIMIT_FRAMES,
			Glib::Variant<guint64>::create(1));
			on_config_changed();
	}

	// 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 (sample_count_supported_ && (watched == &sample_count_ ||
			watched == &sample_rate_) &&
			(event->type() == QEvent::ToolTip)) {
		auto sec = pv::util::Timestamp(sample_count_.value()) / sample_rate_.value();
		QHelpEvent *help_event = static_cast<QHelpEvent*>(event);

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