[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 namespace boost;
using namespace std;

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