[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_DECODE
#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/logicsignal.h"
#include "view/view.h"
#ifdef ENABLE_DECODE
#include "widgets/decodermenu.h"
#endif

/* __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 std::list;

namespace pv {

namespace view {
class SelectableItem;
}

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
	QMenuBar *const menu_bar = new QMenuBar(this);
	menu_bar->setGeometry(QRect(0, 0, 400, 25));

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

	QAction *const 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();

	QAction *const 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();

	QAction *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
	QMenu *menu_view = new QMenu;
	menu_view->setTitle(QApplication::translate(
		"MainWindow", "&View", 0, QApplication::UnicodeUTF8));

	QAction *const 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);

	QAction *const 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);

	QAction *const action_view_zoom_fit = new QAction(this);
	action_view_zoom_fit->setText(QApplication::translate(
		"MainWindow", "Zoom to &Fit", 0, QApplication::UnicodeUTF8));
	action_view_zoom_fit->setIcon(QIcon::fromTheme("zoom-fit",
		QIcon(":/icons/zoom-fit.png")));
	action_view_zoom_fit->setShortcut(QKeySequence(Qt::Key_F));
	action_view_zoom_fit->setObjectName(
		QString::fromUtf8("actionViewZoomFit"));
	menu_view->addAction(action_view_zoom_fit);

	QAction *const action_view_zoom_one_to_one = new QAction(this);
	action_view_zoom_one_to_one->setText(QApplication::translate(
		"MainWindow", "Zoom to &One-to-One", 0,
			QApplication::UnicodeUTF8));
	action_view_zoom_one_to_one->setIcon(QIcon::fromTheme("zoom-original",
		QIcon(":/icons/zoom-original.png")));
	action_view_zoom_one_to_one->setShortcut(QKeySequence(Qt::Key_O));
	action_view_zoom_one_to_one->setObjectName(
		QString::fromUtf8("actionViewZoomOneToOne"));
	menu_view->addAction(action_view_zoom_one_to_one);

	menu_view->addSeparator();

	QAction *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);

	// Decoders Menu
#ifdef ENABLE_DECODE
	QMenu *const menu_decoders = new QMenu;
	menu_decoders->setTitle(QApplication::translate(
		"MainWindow", "&Decoders", 0, QApplication::UnicodeUTF8));

	pv::widgets::DecoderMenu *const menu_decoders_add =
		new pv::widgets::DecoderMenu(menu_decoders);
	menu_decoders_add->setTitle(QApplication::translate(
		"MainWindow", "&Add", 0, QApplication::UnicodeUTF8));
	connect(menu_decoders_add, SIGNAL(decoder_selected(srd_decoder*)),
		this, SLOT(add_decoder(srd_decoder*)));

	menu_decoders->addMenu(menu_decoders_add);
#endif

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

	QAction *const 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());
#ifdef ENABLE_DECODE
	menu_bar->addAction(menu_decoders->menuAction());
#endif
	menu_bar->addAction(menu_help->menuAction());

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

	// Setup the toolbar
	QToolBar *const 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);
	toolbar->addAction(action_view_zoom_fit);
	addToolBar(toolbar);

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

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

	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_actionViewZoomFit_triggered()
{
	_view->zoom_fit();
}

void MainWindow::on_actionViewZoomOneToOne_triggered()
{
	_view->zoom_one_to_one();
}

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::add_decoder(srd_decoder *decoder)
{
#ifdef ENABLE_DECODE
	assert(decoder);
	_session.add_decoder(decoder);
#else
	(void)decoder;
#endif
}

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

void MainWindow::capture_state_changed(int state)
{
	_sampling_bar->set_capture_state((pv::SigSession::capture_state)state);
}

} // 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_DECODE
	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/logicsignal.h"
	46	#include "view/view.h"
	47	#ifdef ENABLE_DECODE
	48	#include "widgets/decodermenu.h"
	49	#endif
	50
	51	/* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
	52	#define __STDC_FORMAT_MACROS
	53	#include <inttypes.h>
	54	#include <stdint.h>
	55	#include <stdarg.h>
	56	#include <glib.h>
	57	#include <libsigrok/libsigrok.h>
	58
	59	using std::list;
	60
	61	namespace pv {
	62
	63	namespace view {
	64	class SelectableItem;
	65	}
	66
	67	MainWindow::MainWindow(DeviceManager &device_manager,
	68	const char *open_file_name,
	69	QWidget *parent) :
	70	QMainWindow(parent),
	71	_device_manager(device_manager),
	72	_session(device_manager)
	73	{
	74	setup_ui();
	75	if (open_file_name) {
	76	const QString s(QString::fromUtf8(open_file_name));
	77	QMetaObject::invokeMethod(this, "load_file",
	78	Qt::QueuedConnection,
	79	Q_ARG(QString, s));
	80	}
	81	}
	82
	83	void MainWindow::setup_ui()
	84	{
	85	setObjectName(QString::fromUtf8("MainWindow"));
	86
	87	resize(1024, 768);
	88
	89	// Set the window icon
	90	QIcon icon;
	91	icon.addFile(QString::fromUtf8(":/icons/sigrok-logo-notext.png"),
	92	QSize(), QIcon::Normal, QIcon::Off);
	93	setWindowIcon(icon);
	94
	95	// Setup the central widget
	96	_central_widget = new QWidget(this);
	97	_vertical_layout = new QVBoxLayout(_central_widget);
	98	_vertical_layout->setSpacing(6);
	99	_vertical_layout->setContentsMargins(0, 0, 0, 0);
	100	setCentralWidget(_central_widget);
	101
	102	_view = new pv::view::View(_session, this);
	103
	104	_vertical_layout->addWidget(_view);
	105
	106	// Setup the menu bar
	107	QMenuBar *const menu_bar = new QMenuBar(this);
	108	menu_bar->setGeometry(QRect(0, 0, 400, 25));
	109
	110	// File Menu
	111	QMenu *const menu_file = new QMenu;
	112	menu_file->setTitle(QApplication::translate(
	113	"MainWindow", "&File", 0, QApplication::UnicodeUTF8));
	114
	115	QAction *const action_open = new QAction(this);
	116	action_open->setText(QApplication::translate(
	117	"MainWindow", "&Open...", 0, QApplication::UnicodeUTF8));
	118	action_open->setIcon(QIcon::fromTheme("document-open",
	119	QIcon(":/icons/document-open.png")));
	120	action_open->setObjectName(QString::fromUtf8("actionOpen"));
	121	menu_file->addAction(action_open);
	122
	123	menu_file->addSeparator();
	124
	125	QAction *const action_connect = new QAction(this);
	126	action_connect->setText(QApplication::translate(
	127	"MainWindow", "&Connect to Device...", 0,
	128	QApplication::UnicodeUTF8));
	129	action_connect->setObjectName(QString::fromUtf8("actionConnect"));
	130	menu_file->addAction(action_connect);
	131
	132	menu_file->addSeparator();
	133
	134	QAction *action_quit = new QAction(this);
	135	action_quit->setText(QApplication::translate(
	136	"MainWindow", "&Quit", 0, QApplication::UnicodeUTF8));
	137	action_quit->setIcon(QIcon::fromTheme("application-exit",
	138	QIcon(":/icons/application-exit.png")));
	139	action_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
	140	action_quit->setObjectName(QString::fromUtf8("actionQuit"));
	141	menu_file->addAction(action_quit);
	142
	143	// View Menu
	144	QMenu *menu_view = new QMenu;
	145	menu_view->setTitle(QApplication::translate(
	146	"MainWindow", "&View", 0, QApplication::UnicodeUTF8));
	147
	148	QAction *const action_view_zoom_in = new QAction(this);
	149	action_view_zoom_in->setText(QApplication::translate(
	150	"MainWindow", "Zoom &In", 0, QApplication::UnicodeUTF8));
	151	action_view_zoom_in->setIcon(QIcon::fromTheme("zoom-in",
	152	QIcon(":/icons/zoom-in.png")));
	153	action_view_zoom_in->setObjectName(
	154	QString::fromUtf8("actionViewZoomIn"));
	155	menu_view->addAction(action_view_zoom_in);
	156
	157	QAction *const action_view_zoom_out = new QAction(this);
	158	action_view_zoom_out->setText(QApplication::translate(
	159	"MainWindow", "Zoom &Out", 0, QApplication::UnicodeUTF8));
	160	action_view_zoom_out->setIcon(QIcon::fromTheme("zoom-out",
	161	QIcon(":/icons/zoom-out.png")));
	162	action_view_zoom_out->setObjectName(
	163	QString::fromUtf8("actionViewZoomOut"));
	164	menu_view->addAction(action_view_zoom_out);
	165
	166	QAction *const action_view_zoom_fit = new QAction(this);
	167	action_view_zoom_fit->setText(QApplication::translate(
	168	"MainWindow", "Zoom to &Fit", 0, QApplication::UnicodeUTF8));
	169	action_view_zoom_fit->setIcon(QIcon::fromTheme("zoom-fit",
	170	QIcon(":/icons/zoom-fit.png")));
	171	action_view_zoom_fit->setShortcut(QKeySequence(Qt::Key_F));
	172	action_view_zoom_fit->setObjectName(
	173	QString::fromUtf8("actionViewZoomFit"));
	174	menu_view->addAction(action_view_zoom_fit);
	175
	176	QAction *const action_view_zoom_one_to_one = new QAction(this);
	177	action_view_zoom_one_to_one->setText(QApplication::translate(
	178	"MainWindow", "Zoom to &One-to-One", 0,
	179	QApplication::UnicodeUTF8));
	180	action_view_zoom_one_to_one->setIcon(QIcon::fromTheme("zoom-original",
	181	QIcon(":/icons/zoom-original.png")));
	182	action_view_zoom_one_to_one->setShortcut(QKeySequence(Qt::Key_O));
	183	action_view_zoom_one_to_one->setObjectName(
	184	QString::fromUtf8("actionViewZoomOneToOne"));
	185	menu_view->addAction(action_view_zoom_one_to_one);
	186
	187	menu_view->addSeparator();
	188
	189	QAction *action_view_show_cursors = new QAction(this);
	190	action_view_show_cursors->setCheckable(true);
	191	action_view_show_cursors->setChecked(_view->cursors_shown());
	192	action_view_show_cursors->setShortcut(QKeySequence(Qt::Key_C));
	193	action_view_show_cursors->setObjectName(
	194	QString::fromUtf8("actionViewShowCursors"));
	195	action_view_show_cursors->setText(QApplication::translate(
	196	"MainWindow", "Show &Cursors", 0, QApplication::UnicodeUTF8));
	197	menu_view->addAction(action_view_show_cursors);
	198
	199	// Decoders Menu
	200	#ifdef ENABLE_DECODE
	201	QMenu *const menu_decoders = new QMenu;
	202	menu_decoders->setTitle(QApplication::translate(
	203	"MainWindow", "&Decoders", 0, QApplication::UnicodeUTF8));
	204
	205	pv::widgets::DecoderMenu *const menu_decoders_add =
	206	new pv::widgets::DecoderMenu(menu_decoders);
	207	menu_decoders_add->setTitle(QApplication::translate(
	208	"MainWindow", "&Add", 0, QApplication::UnicodeUTF8));
	209	connect(menu_decoders_add, SIGNAL(decoder_selected(srd_decoder*)),
	210	this, SLOT(add_decoder(srd_decoder*)));
	211
	212	menu_decoders->addMenu(menu_decoders_add);
	213	#endif
	214
	215	// Help Menu
	216	QMenu *const menu_help = new QMenu;
	217	menu_help->setTitle(QApplication::translate(
	218	"MainWindow", "&Help", 0, QApplication::UnicodeUTF8));
	219
	220	QAction *const action_about = new QAction(this);
	221	action_about->setObjectName(QString::fromUtf8("actionAbout"));
	222	action_about->setText(QApplication::translate(
	223	"MainWindow", "&About...", 0, QApplication::UnicodeUTF8));
	224	menu_help->addAction(action_about);
	225
	226	menu_bar->addAction(menu_file->menuAction());
	227	menu_bar->addAction(menu_view->menuAction());
	228	#ifdef ENABLE_DECODE
	229	menu_bar->addAction(menu_decoders->menuAction());
	230	#endif
	231	menu_bar->addAction(menu_help->menuAction());
	232
	233	setMenuBar(menu_bar);
	234	QMetaObject::connectSlotsByName(this);
	235
	236	// Setup the toolbar
	237	QToolBar *const toolbar = new QToolBar(tr("Main Toolbar"), this);
	238	toolbar->addAction(action_open);
	239	toolbar->addSeparator();
	240	toolbar->addAction(action_view_zoom_in);
	241	toolbar->addAction(action_view_zoom_out);
	242	toolbar->addAction(action_view_zoom_fit);
	243	addToolBar(toolbar);
	244
	245	// Setup the sampling bar
	246	_sampling_bar = new toolbars::SamplingBar(_session, this);
	247
	248	// Populate the device list and select the initially selected device
	249	update_device_list();
	250
	251	connect(_sampling_bar, SIGNAL(run_stop()), this,
	252	SLOT(run_stop()));
	253	addToolBar(_sampling_bar);
	254
	255	// Set the title
	256	setWindowTitle(QApplication::translate("MainWindow", "PulseView", 0,
	257	QApplication::UnicodeUTF8));
	258
	259	// Setup _session events
	260	connect(&_session, SIGNAL(capture_state_changed(int)), this,
	261	SLOT(capture_state_changed(int)));
	262
	263	}
	264
	265	void MainWindow::session_error(
	266	const QString text, const QString info_text)
	267	{
	268	QMetaObject::invokeMethod(this, "show_session_error",
	269	Qt::QueuedConnection, Q_ARG(QString, text),
	270	Q_ARG(QString, info_text));
	271	}
	272
	273	void MainWindow::update_device_list(struct sr_dev_inst *selected_device)
	274	{
	275	assert(_sampling_bar);
	276
	277	const list<sr_dev_inst*> &devices = _device_manager.devices();
	278	_sampling_bar->set_device_list(devices);
	279
	280	if (!selected_device && !devices.empty()) {
	281	// Fall back to the first device in the list.
	282	selected_device = devices.front();
	283
	284	// Try and find the demo device and select that by default
	285	BOOST_FOREACH (struct sr_dev_inst *sdi, devices)
	286	if (strcmp(sdi->driver->name, "demo") == 0) {
	287	selected_device = sdi;
	288	}
	289	}
	290
	291	if (selected_device) {
	292	_sampling_bar->set_selected_device(selected_device);
	293	_session.set_device(selected_device);
	294	}
	295	}
	296
	297	void MainWindow::load_file(QString file_name)
	298	{
	299	const QString errorMessage(
	300	QString("Failed to load file %1").arg(file_name));
	301	const QString infoMessage;
	302	_session.load_file(file_name.toStdString(),
	303	boost::bind(&MainWindow::session_error, this,
	304	errorMessage, infoMessage));
	305	}
	306
	307	void MainWindow::show_session_error(
	308	const QString text, const QString info_text)
	309	{
	310	QMessageBox msg(this);
	311	msg.setText(text);
	312	msg.setInformativeText(info_text);
	313	msg.setStandardButtons(QMessageBox::Ok);
	314	msg.setIcon(QMessageBox::Warning);
	315	msg.exec();
	316	}
	317
	318	void MainWindow::on_actionOpen_triggered()
	319	{
	320	// Enumerate the file formats
	321	QString filters(tr("Sigrok Sessions (*.sr)"));
	322	filters.append(tr(";;All Files (.)"));
	323
	324	// Show the dialog
	325	const QString file_name = QFileDialog::getOpenFileName(
	326	this, tr("Open File"), "", filters);
	327	if (!file_name.isEmpty())
	328	load_file(file_name);
	329	}
	330
	331	void MainWindow::on_actionConnect_triggered()
	332	{
	333	// Stop any currently running capture session
	334	_session.stop_capture();
	335
	336	dialogs::Connect dlg(this, _device_manager);
	337
	338	// If the user selected a device, select it in the device list. Select the
	339	// current device otherwise.
	340	struct sr_dev_inst *const sdi = dlg.exec() ?
	341	dlg.get_selected_device() : _session.get_device();
	342
	343	update_device_list(sdi);
	344	}
	345
	346	void MainWindow::on_actionQuit_triggered()
	347	{
	348	close();
	349	}
	350
	351	void MainWindow::on_actionViewZoomIn_triggered()
	352	{
	353	_view->zoom(1);
	354	}
	355
	356	void MainWindow::on_actionViewZoomOut_triggered()
	357	{
	358	_view->zoom(-1);
	359	}
	360
	361	void MainWindow::on_actionViewZoomFit_triggered()
	362	{
	363	_view->zoom_fit();
	364	}
	365
	366	void MainWindow::on_actionViewZoomOneToOne_triggered()
	367	{
	368	_view->zoom_one_to_one();
	369	}
	370
	371	void MainWindow::on_actionViewShowCursors_triggered()
	372	{
	373	assert(_view);
	374
	375	const bool show = !_view->cursors_shown();
	376	if(show)
	377	_view->centre_cursors();
	378
	379	_view->show_cursors(show);
	380	}
	381
	382	void MainWindow::on_actionAbout_triggered()
	383	{
	384	dialogs::About dlg(this);
	385	dlg.exec();
	386	}
	387
	388	void MainWindow::add_decoder(srd_decoder *decoder)
	389	{
	390	#ifdef ENABLE_DECODE
	391	assert(decoder);
	392	_session.add_decoder(decoder);
	393	#else
	394	(void)decoder;
	395	#endif
	396	}
	397
	398	void MainWindow::run_stop()
	399	{
	400	switch(_session.get_capture_state()) {
	401	case SigSession::Stopped:
	402	_session.start_capture(_sampling_bar->get_record_length(),
	403	boost::bind(&MainWindow::session_error, this,
	404	QString("Capture failed"), _1));
	405	break;
	406
	407	case SigSession::AwaitingTrigger:
	408	case SigSession::Running:
	409	_session.stop_capture();
	410	break;
	411	}
	412	}
	413
	414	void MainWindow::capture_state_changed(int state)
	415	{
	416	_sampling_bar->set_capture_state((pv::SigSession::capture_state)state);
	417	}
	418
	419	} // namespace pv