[pulseview.git] / pv / mainwindow.cpp

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifdef ENABLE_SIGROKDECODE
#include <libsigrokdecode/libsigrokdecode.h>
#endif

#include <boost/bind.hpp>
#include <boost/foreach.hpp>

#include <QAction>
#include <QApplication>
#include <QButtonGroup>
#include <QFileDialog>
#include <QMessageBox>
#include <QMenu>
#include <QMenuBar>
#include <QStatusBar>
#include <QVBoxLayout>
#include <QWidget>

#include "mainwindow.h"

#include "devicemanager.h"
#include "dialogs/about.h"
#include "dialogs/connect.h"
#include "toolbars/samplingbar.h"
#include "view/view.h"

/* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#include <stdint.h>
#include <stdarg.h>
#include <glib.h>
#include <libsigrok/libsigrok.h>

using namespace std;

namespace pv {

MainWindow::MainWindow(DeviceManager &device_manager,
	const char *open_file_name,
	QWidget *parent) :
	QMainWindow(parent),
	_device_manager(device_manager),
	_session(device_manager)
{
	setup_ui();
	if (open_file_name) {
		const QString s(QString::fromUtf8(open_file_name));
		QMetaObject::invokeMethod(this, "load_file",
			Qt::QueuedConnection,
			Q_ARG(QString, s));
	}
}

void MainWindow::setup_ui()
{
	setObjectName(QString::fromUtf8("MainWindow"));

	resize(1024, 768);

	// Set the window icon
	QIcon icon;
	icon.addFile(QString::fromUtf8(":/icons/sigrok-logo-notext.png"),
		QSize(), QIcon::Normal, QIcon::Off);
	setWindowIcon(icon);

	// Setup the central widget
	_central_widget = new QWidget(this);
	_vertical_layout = new QVBoxLayout(_central_widget);
	_vertical_layout->setSpacing(6);
	_vertical_layout->setContentsMargins(0, 0, 0, 0);
	setCentralWidget(_central_widget);

	_view = new pv::view::View(_session, this);
	_vertical_layout->addWidget(_view);

	// Setup the menu bar
	_menu_bar = new QMenuBar(this);
	_menu_bar->setGeometry(QRect(0, 0, 400, 25));

	// File Menu
	_menu_file = new QMenu(_menu_bar);
	_menu_file->setTitle(QApplication::translate(
		"MainWindow", "&File", 0, QApplication::UnicodeUTF8));

	_action_open = new QAction(this);
	_action_open->setText(QApplication::translate(
		"MainWindow", "&Open...", 0, QApplication::UnicodeUTF8));
	_action_open->setIcon(QIcon::fromTheme("document-open",
		QIcon(":/icons/document-open.png")));
	_action_open->setObjectName(QString::fromUtf8("actionOpen"));
	_menu_file->addAction(_action_open);

	_menu_file->addSeparator();

	_action_connect = new QAction(this);
	_action_connect->setText(QApplication::translate(
		"MainWindow", "&Connect to Device...", 0,
		QApplication::UnicodeUTF8));
	_action_connect->setObjectName(QString::fromUtf8("actionConnect"));
	_menu_file->addAction(_action_connect);

	_menu_file->addSeparator();

	_action_quit = new QAction(this);
	_action_quit->setText(QApplication::translate(
		"MainWindow", "&Quit", 0, QApplication::UnicodeUTF8));
	_action_quit->setIcon(QIcon::fromTheme("application-exit",
		QIcon(":/icons/application-exit.png")));
	_action_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
	_action_quit->setObjectName(QString::fromUtf8("actionQuit"));
	_menu_file->addAction(_action_quit);

	// View Menu
	_menu_view = new QMenu(_menu_bar);
	_menu_view->setTitle(QApplication::translate(
		"MainWindow", "&View", 0, QApplication::UnicodeUTF8));

	_action_view_zoom_in = new QAction(this);
	_action_view_zoom_in->setText(QApplication::translate(
		"MainWindow", "Zoom &In", 0, QApplication::UnicodeUTF8));
	_action_view_zoom_in->setIcon(QIcon::fromTheme("zoom-in",
		QIcon(":/icons/zoom-in.png")));
	_action_view_zoom_in->setObjectName(
		QString::fromUtf8("actionViewZoomIn"));
	_menu_view->addAction(_action_view_zoom_in);

	_action_view_zoom_out = new QAction(this);
	_action_view_zoom_out->setText(QApplication::translate(
		"MainWindow", "Zoom &Out", 0, QApplication::UnicodeUTF8));
	_action_view_zoom_out->setIcon(QIcon::fromTheme("zoom-out",
		QIcon(":/icons/zoom-out.png")));
	_action_view_zoom_out->setObjectName(
		QString::fromUtf8("actionViewZoomOut"));
	_menu_view->addAction(_action_view_zoom_out);

	_menu_view->addSeparator();

	_action_view_show_cursors = new QAction(this);
	_action_view_show_cursors->setCheckable(true);
	_action_view_show_cursors->setChecked(_view->cursors_shown());
	_action_view_show_cursors->setShortcut(QKeySequence(Qt::Key_C));
	_action_view_show_cursors->setObjectName(
		QString::fromUtf8("actionViewShowCursors"));
	_action_view_show_cursors->setText(QApplication::translate(
		"MainWindow", "Show &Cursors", 0, QApplication::UnicodeUTF8));
	_menu_view->addAction(_action_view_show_cursors);

	// Help Menu
	_menu_help = new QMenu(_menu_bar);
	_menu_help->setTitle(QApplication::translate(
		"MainWindow", "&Help", 0, QApplication::UnicodeUTF8));

	_action_about = new QAction(this);
	_action_about->setObjectName(QString::fromUtf8("actionAbout"));
	_action_about->setText(QApplication::translate(
		"MainWindow", "&About...", 0, QApplication::UnicodeUTF8));
	_menu_help->addAction(_action_about);

	_menu_bar->addAction(_menu_file->menuAction());
	_menu_bar->addAction(_menu_view->menuAction());
	_menu_bar->addAction(_menu_help->menuAction());

	setMenuBar(_menu_bar);
	QMetaObject::connectSlotsByName(this);

	// Setup the toolbar
	_toolbar = new QToolBar(tr("Main Toolbar"), this);
	_toolbar->addAction(_action_open);
	_toolbar->addSeparator();
	_toolbar->addAction(_action_view_zoom_in);
	_toolbar->addAction(_action_view_zoom_out);
	addToolBar(_toolbar);

	// Setup the sampling bar
	_sampling_bar = new toolbars::SamplingBar(this);

	// Populate the device list and select the initially selected device
	update_device_list();

	connect(_sampling_bar, SIGNAL(device_selected()), this,
		SLOT(device_selected()));
	connect(_sampling_bar, SIGNAL(run_stop()), this,
		SLOT(run_stop()));
	addToolBar(_sampling_bar);

	// Set the title
	setWindowTitle(QApplication::translate("MainWindow", "PulseView", 0,
		QApplication::UnicodeUTF8));

	// Setup _session events
	connect(&_session, SIGNAL(capture_state_changed(int)), this,
		SLOT(capture_state_changed(int)));

}

void MainWindow::session_error(
	const QString text, const QString info_text)
{
	QMetaObject::invokeMethod(this, "show_session_error",
		Qt::QueuedConnection, Q_ARG(QString, text),
		Q_ARG(QString, info_text));
}

void MainWindow::update_device_list(struct sr_dev_inst *selected_device)
{
	assert(_sampling_bar);

	const list<sr_dev_inst*> &devices = _device_manager.devices();
	_sampling_bar->set_device_list(devices);

	if (!selected_device && !devices.empty()) {
		// Fall back to the first device in the list.
		selected_device = devices.front();

		// Try and find the demo device and select that by default
		BOOST_FOREACH (struct sr_dev_inst *sdi, devices)
			if (strcmp(sdi->driver->name, "demo") == 0) {
				selected_device = sdi;
			}
	}

	if (selected_device) {
		_sampling_bar->set_selected_device(selected_device);
		_session.set_device(selected_device);
	}
}

void MainWindow::load_file(QString file_name)
{
	const QString errorMessage(
		QString("Failed to load file %1").arg(file_name));
	const QString infoMessage;
	_session.load_file(file_name.toStdString(),
		boost::bind(&MainWindow::session_error, this,
			errorMessage, infoMessage));
}

void MainWindow::show_session_error(
	const QString text, const QString info_text)
{
	QMessageBox msg(this);
	msg.setText(text);
	msg.setInformativeText(info_text);
	msg.setStandardButtons(QMessageBox::Ok);
	msg.setIcon(QMessageBox::Warning);
	msg.exec();
}

void MainWindow::on_actionOpen_triggered()
{
	// Enumerate the file formats
	QString filters(tr("Sigrok Sessions (*.sr)"));
	filters.append(tr(";;All Files (*.*)"));

	// Show the dialog
	const QString file_name = QFileDialog::getOpenFileName(
		this, tr("Open File"), "", filters);
	if (!file_name.isEmpty())
		load_file(file_name);
}

void MainWindow::on_actionConnect_triggered()
{
	// Stop any currently running capture session
	_session.stop_capture();

	dialogs::Connect dlg(this, _device_manager);

	// If the user selected a device, select it in the device list. Select the
	// current device otherwise.
	struct sr_dev_inst *const sdi = dlg.exec() ?
		dlg.get_selected_device() : _session.get_device();

	update_device_list(sdi);
}

void MainWindow::on_actionQuit_triggered()
{
	close();
}

void MainWindow::on_actionViewZoomIn_triggered()
{
	_view->zoom(1);
}

void MainWindow::on_actionViewZoomOut_triggered()
{
	_view->zoom(-1);
}

void MainWindow::on_actionViewShowCursors_triggered()
{
	assert(_view);

	const bool show = !_view->cursors_shown();
	if(show)
		_view->centre_cursors();

	_view->show_cursors(show);
}

void MainWindow::on_actionAbout_triggered()
{
	dialogs::About dlg(this);
	dlg.exec();
}

void MainWindow::device_selected()
{
	_session.set_device(_sampling_bar->get_selected_device());
}

void MainWindow::run_stop()
{
	switch(_session.get_capture_state()) {
	case SigSession::Stopped:
		_session.start_capture(_sampling_bar->get_record_length(),
			boost::bind(&MainWindow::session_error, this,
				QString("Capture failed"), _1));
		break;

	case SigSession::Running:
		_session.stop_capture();
		break;
	}
}

void MainWindow::capture_state_changed(int state)
{
	_sampling_bar->set_sampling(state != SigSession::Stopped);
}

} // namespace pv
Commit	Line	Data
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#ifdef ENABLE_SIGROKDECODE
	22	#include <libsigrokdecode/libsigrokdecode.h>
	23	#endif
	24
	25	#include <boost/bind.hpp>
	26	#include <boost/foreach.hpp>
	27
	28	#include <QAction>
	29	#include <QApplication>
	30	#include <QButtonGroup>
	31	#include <QFileDialog>
	32	#include <QMessageBox>
	33	#include <QMenu>
	34	#include <QMenuBar>
	35	#include <QStatusBar>
	36	#include <QVBoxLayout>
	37	#include <QWidget>
	38
	39	#include "mainwindow.h"
	40
	41	#include "devicemanager.h"
	42	#include "dialogs/about.h"
	43	#include "dialogs/connect.h"
	44	#include "toolbars/samplingbar.h"
	45	#include "view/view.h"
	46
	47	/* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
	48	#define __STDC_FORMAT_MACROS
	49	#include <inttypes.h>
	50	#include <stdint.h>
	51	#include <stdarg.h>
	52	#include <glib.h>
	53	#include <libsigrok/libsigrok.h>
	54
	55	using namespace std;
	56
	57	namespace pv {
	58
	59	MainWindow::MainWindow(DeviceManager &device_manager,
	60	const char *open_file_name,
	61	QWidget *parent) :
	62	QMainWindow(parent),
	63	_device_manager(device_manager),
	64	_session(device_manager)
	65	{
	66	setup_ui();
	67	if (open_file_name) {
	68	const QString s(QString::fromUtf8(open_file_name));
	69	QMetaObject::invokeMethod(this, "load_file",
	70	Qt::QueuedConnection,
	71	Q_ARG(QString, s));
	72	}
	73	}
	74
	75	void MainWindow::setup_ui()
	76	{
	77	setObjectName(QString::fromUtf8("MainWindow"));
	78
	79	resize(1024, 768);
	80
	81	// Set the window icon
	82	QIcon icon;
	83	icon.addFile(QString::fromUtf8(":/icons/sigrok-logo-notext.png"),
	84	QSize(), QIcon::Normal, QIcon::Off);
	85	setWindowIcon(icon);
	86
	87	// Setup the central widget
	88	_central_widget = new QWidget(this);
	89	_vertical_layout = new QVBoxLayout(_central_widget);
	90	_vertical_layout->setSpacing(6);
	91	_vertical_layout->setContentsMargins(0, 0, 0, 0);
	92	setCentralWidget(_central_widget);
	93
	94	_view = new pv::view::View(_session, this);
	95	_vertical_layout->addWidget(_view);
	96
	97	// Setup the menu bar
	98	_menu_bar = new QMenuBar(this);
	99	_menu_bar->setGeometry(QRect(0, 0, 400, 25));
	100
	101	// File Menu
	102	_menu_file = new QMenu(_menu_bar);
	103	_menu_file->setTitle(QApplication::translate(
	104	"MainWindow", "&File", 0, QApplication::UnicodeUTF8));
	105
	106	_action_open = new QAction(this);
	107	_action_open->setText(QApplication::translate(
	108	"MainWindow", "&Open...", 0, QApplication::UnicodeUTF8));
	109	_action_open->setIcon(QIcon::fromTheme("document-open",
	110	QIcon(":/icons/document-open.png")));
	111	_action_open->setObjectName(QString::fromUtf8("actionOpen"));
	112	_menu_file->addAction(_action_open);
	113
	114	_menu_file->addSeparator();
	115
	116	_action_connect = new QAction(this);
	117	_action_connect->setText(QApplication::translate(
	118	"MainWindow", "&Connect to Device...", 0,
	119	QApplication::UnicodeUTF8));
	120	_action_connect->setObjectName(QString::fromUtf8("actionConnect"));
	121	_menu_file->addAction(_action_connect);
	122
	123	_menu_file->addSeparator();
	124
	125	_action_quit = new QAction(this);
	126	_action_quit->setText(QApplication::translate(
	127	"MainWindow", "&Quit", 0, QApplication::UnicodeUTF8));
	128	_action_quit->setIcon(QIcon::fromTheme("application-exit",
	129	QIcon(":/icons/application-exit.png")));
	130	_action_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
	131	_action_quit->setObjectName(QString::fromUtf8("actionQuit"));
	132	_menu_file->addAction(_action_quit);
	133
	134	// View Menu
	135	_menu_view = new QMenu(_menu_bar);
	136	_menu_view->setTitle(QApplication::translate(
	137	"MainWindow", "&View", 0, QApplication::UnicodeUTF8));
	138
	139	_action_view_zoom_in = new QAction(this);
	140	_action_view_zoom_in->setText(QApplication::translate(
	141	"MainWindow", "Zoom &In", 0, QApplication::UnicodeUTF8));
	142	_action_view_zoom_in->setIcon(QIcon::fromTheme("zoom-in",
	143	QIcon(":/icons/zoom-in.png")));
	144	_action_view_zoom_in->setObjectName(
	145	QString::fromUtf8("actionViewZoomIn"));
	146	_menu_view->addAction(_action_view_zoom_in);
	147
	148	_action_view_zoom_out = new QAction(this);
	149	_action_view_zoom_out->setText(QApplication::translate(
	150	"MainWindow", "Zoom &Out", 0, QApplication::UnicodeUTF8));
	151	_action_view_zoom_out->setIcon(QIcon::fromTheme("zoom-out",
	152	QIcon(":/icons/zoom-out.png")));
	153	_action_view_zoom_out->setObjectName(
	154	QString::fromUtf8("actionViewZoomOut"));
	155	_menu_view->addAction(_action_view_zoom_out);
	156
	157	_menu_view->addSeparator();
	158
	159	_action_view_show_cursors = new QAction(this);
	160	_action_view_show_cursors->setCheckable(true);
	161	_action_view_show_cursors->setChecked(_view->cursors_shown());
	162	_action_view_show_cursors->setShortcut(QKeySequence(Qt::Key_C));
	163	_action_view_show_cursors->setObjectName(
	164	QString::fromUtf8("actionViewShowCursors"));
	165	_action_view_show_cursors->setText(QApplication::translate(
	166	"MainWindow", "Show &Cursors", 0, QApplication::UnicodeUTF8));
	167	_menu_view->addAction(_action_view_show_cursors);
	168
	169	// Help Menu
	170	_menu_help = new QMenu(_menu_bar);
	171	_menu_help->setTitle(QApplication::translate(
	172	"MainWindow", "&Help", 0, QApplication::UnicodeUTF8));
	173
	174	_action_about = new QAction(this);
	175	_action_about->setObjectName(QString::fromUtf8("actionAbout"));
	176	_action_about->setText(QApplication::translate(
	177	"MainWindow", "&About...", 0, QApplication::UnicodeUTF8));
	178	_menu_help->addAction(_action_about);
	179
	180	_menu_bar->addAction(_menu_file->menuAction());
	181	_menu_bar->addAction(_menu_view->menuAction());
	182	_menu_bar->addAction(_menu_help->menuAction());
	183
	184	setMenuBar(_menu_bar);
	185	QMetaObject::connectSlotsByName(this);
	186
	187	// Setup the toolbar
	188	_toolbar = new QToolBar(tr("Main Toolbar"), this);
	189	_toolbar->addAction(_action_open);
	190	_toolbar->addSeparator();
	191	_toolbar->addAction(_action_view_zoom_in);
	192	_toolbar->addAction(_action_view_zoom_out);
	193	addToolBar(_toolbar);
	194
	195	// Setup the sampling bar
	196	_sampling_bar = new toolbars::SamplingBar(this);
	197
	198	// Populate the device list and select the initially selected device
	199	update_device_list();
	200
	201	connect(_sampling_bar, SIGNAL(device_selected()), this,
	202	SLOT(device_selected()));
	203	connect(_sampling_bar, SIGNAL(run_stop()), this,
	204	SLOT(run_stop()));
	205	addToolBar(_sampling_bar);
	206
	207	// Set the title
	208	setWindowTitle(QApplication::translate("MainWindow", "PulseView", 0,
	209	QApplication::UnicodeUTF8));
	210
	211	// Setup _session events
	212	connect(&_session, SIGNAL(capture_state_changed(int)), this,
	213	SLOT(capture_state_changed(int)));
	214
	215	}
	216
	217	void MainWindow::session_error(
	218	const QString text, const QString info_text)
	219	{
	220	QMetaObject::invokeMethod(this, "show_session_error",
	221	Qt::QueuedConnection, Q_ARG(QString, text),
	222	Q_ARG(QString, info_text));
	223	}
	224
	225	void MainWindow::update_device_list(struct sr_dev_inst *selected_device)
	226	{
	227	assert(_sampling_bar);
	228
	229	const list<sr_dev_inst*> &devices = _device_manager.devices();
	230	_sampling_bar->set_device_list(devices);
	231
	232	if (!selected_device && !devices.empty()) {
	233	// Fall back to the first device in the list.
	234	selected_device = devices.front();
	235
	236	// Try and find the demo device and select that by default
	237	BOOST_FOREACH (struct sr_dev_inst *sdi, devices)
	238	if (strcmp(sdi->driver->name, "demo") == 0) {
	239	selected_device = sdi;
	240	}
	241	}
	242
	243	if (selected_device) {
	244	_sampling_bar->set_selected_device(selected_device);
	245	_session.set_device(selected_device);
	246	}
	247	}
	248
	249	void MainWindow::load_file(QString file_name)
	250	{
	251	const QString errorMessage(
	252	QString("Failed to load file %1").arg(file_name));
	253	const QString infoMessage;
	254	_session.load_file(file_name.toStdString(),
	255	boost::bind(&MainWindow::session_error, this,
	256	errorMessage, infoMessage));
	257	}
	258
	259	void MainWindow::show_session_error(
	260	const QString text, const QString info_text)
	261	{
	262	QMessageBox msg(this);
	263	msg.setText(text);
	264	msg.setInformativeText(info_text);
	265	msg.setStandardButtons(QMessageBox::Ok);
	266	msg.setIcon(QMessageBox::Warning);
	267	msg.exec();
	268	}
	269
	270	void MainWindow::on_actionOpen_triggered()
	271	{
	272	// Enumerate the file formats
	273	QString filters(tr("Sigrok Sessions (*.sr)"));
	274	filters.append(tr(";;All Files (.)"));
	275
	276	// Show the dialog
	277	const QString file_name = QFileDialog::getOpenFileName(
	278	this, tr("Open File"), "", filters);
	279	if (!file_name.isEmpty())
	280	load_file(file_name);
	281	}
	282
	283	void MainWindow::on_actionConnect_triggered()
	284	{
	285	// Stop any currently running capture session
	286	_session.stop_capture();
	287
	288	dialogs::Connect dlg(this, _device_manager);
	289
	290	// If the user selected a device, select it in the device list. Select the
	291	// current device otherwise.
	292	struct sr_dev_inst *const sdi = dlg.exec() ?
	293	dlg.get_selected_device() : _session.get_device();
	294
	295	update_device_list(sdi);
	296	}
	297
	298	void MainWindow::on_actionQuit_triggered()
	299	{
	300	close();
	301	}
	302
	303	void MainWindow::on_actionViewZoomIn_triggered()
	304	{
	305	_view->zoom(1);
	306	}
	307
	308	void MainWindow::on_actionViewZoomOut_triggered()
	309	{
	310	_view->zoom(-1);
	311	}
	312
	313	void MainWindow::on_actionViewShowCursors_triggered()
	314	{
	315	assert(_view);
	316
	317	const bool show = !_view->cursors_shown();
	318	if(show)
	319	_view->centre_cursors();
	320
	321	_view->show_cursors(show);
	322	}
	323
	324	void MainWindow::on_actionAbout_triggered()
	325	{
	326	dialogs::About dlg(this);
	327	dlg.exec();
	328	}
	329
	330	void MainWindow::device_selected()
	331	{
	332	_session.set_device(_sampling_bar->get_selected_device());
	333	}
	334
	335	void MainWindow::run_stop()
	336	{
	337	switch(_session.get_capture_state()) {
	338	case SigSession::Stopped:
	339	_session.start_capture(_sampling_bar->get_record_length(),
	340	boost::bind(&MainWindow::session_error, this,
	341	QString("Capture failed"), _1));
	342	break;
	343
	344	case SigSession::Running:
	345	_session.stop_capture();
	346	break;
	347	}
	348	}
	349
	350	void MainWindow::capture_state_changed(int state)
	351	{
	352	_sampling_bar->set_sampling(state != SigSession::Stopped);
	353	}
	354
	355	} // namespace pv