[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());

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