[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
 */

#include <libsigrokdecode/libsigrokdecode.h>

#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"
#include "widgets/decodermenu.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 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
	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);

	// 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());
	menu_bar->addAction(menu_decoders->menuAction());
	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)
{
	assert(decoder);
	_session.add_decoder(decoder);
}

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	#include <libsigrokdecode/libsigrokdecode.h>
	22
	23	#include <boost/bind.hpp>
	24	#include <boost/foreach.hpp>
	25
	26	#include <QAction>
	27	#include <QApplication>
	28	#include <QButtonGroup>
	29	#include <QFileDialog>
	30	#include <QMessageBox>
	31	#include <QMenu>
	32	#include <QMenuBar>
	33	#include <QStatusBar>
	34	#include <QVBoxLayout>
	35	#include <QWidget>
	36
	37	#include "mainwindow.h"
	38
	39	#include "devicemanager.h"
	40	#include "dialogs/about.h"
	41	#include "dialogs/connect.h"
	42	#include "toolbars/samplingbar.h"
	43	#include "view/logicsignal.h"
	44	#include "view/view.h"
	45	#include "widgets/decodermenu.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 boost;
	56	using namespace std;
	57
	58	namespace pv {
	59
	60	namespace view {
	61	class SelectableItem;
	62	}
	63
	64	MainWindow::MainWindow(DeviceManager &device_manager,
	65	const char *open_file_name,
	66	QWidget *parent) :
	67	QMainWindow(parent),
	68	_device_manager(device_manager),
	69	_session(device_manager)
	70	{
	71	setup_ui();
	72	if (open_file_name) {
	73	const QString s(QString::fromUtf8(open_file_name));
	74	QMetaObject::invokeMethod(this, "load_file",
	75	Qt::QueuedConnection,
	76	Q_ARG(QString, s));
	77	}
	78	}
	79
	80	void MainWindow::setup_ui()
	81	{
	82	setObjectName(QString::fromUtf8("MainWindow"));
	83
	84	resize(1024, 768);
	85
	86	// Set the window icon
	87	QIcon icon;
	88	icon.addFile(QString::fromUtf8(":/icons/sigrok-logo-notext.png"),
	89	QSize(), QIcon::Normal, QIcon::Off);
	90	setWindowIcon(icon);
	91
	92	// Setup the central widget
	93	_central_widget = new QWidget(this);
	94	_vertical_layout = new QVBoxLayout(_central_widget);
	95	_vertical_layout->setSpacing(6);
	96	_vertical_layout->setContentsMargins(0, 0, 0, 0);
	97	setCentralWidget(_central_widget);
	98
	99	_view = new pv::view::View(_session, this);
	100
	101	_vertical_layout->addWidget(_view);
	102
	103	// Setup the menu bar
	104	QMenuBar *const menu_bar = new QMenuBar(this);
	105	menu_bar->setGeometry(QRect(0, 0, 400, 25));
	106
	107	// File Menu
	108	QMenu *const menu_file = new QMenu;
	109	menu_file->setTitle(QApplication::translate(
	110	"MainWindow", "&File", 0, QApplication::UnicodeUTF8));
	111
	112	QAction *const action_open = new QAction(this);
	113	action_open->setText(QApplication::translate(
	114	"MainWindow", "&Open...", 0, QApplication::UnicodeUTF8));
	115	action_open->setIcon(QIcon::fromTheme("document-open",
	116	QIcon(":/icons/document-open.png")));
	117	action_open->setObjectName(QString::fromUtf8("actionOpen"));
	118	menu_file->addAction(action_open);
	119
	120	menu_file->addSeparator();
	121
	122	QAction *const action_connect = new QAction(this);
	123	action_connect->setText(QApplication::translate(
	124	"MainWindow", "&Connect to Device...", 0,
	125	QApplication::UnicodeUTF8));
	126	action_connect->setObjectName(QString::fromUtf8("actionConnect"));
	127	menu_file->addAction(action_connect);
	128
	129	menu_file->addSeparator();
	130
	131	QAction *action_quit = new QAction(this);
	132	action_quit->setText(QApplication::translate(
	133	"MainWindow", "&Quit", 0, QApplication::UnicodeUTF8));
	134	action_quit->setIcon(QIcon::fromTheme("application-exit",
	135	QIcon(":/icons/application-exit.png")));
	136	action_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
	137	action_quit->setObjectName(QString::fromUtf8("actionQuit"));
	138	menu_file->addAction(action_quit);
	139
	140	// View Menu
	141	QMenu *menu_view = new QMenu;
	142	menu_view->setTitle(QApplication::translate(
	143	"MainWindow", "&View", 0, QApplication::UnicodeUTF8));
	144
	145	QAction *const action_view_zoom_in = new QAction(this);
	146	action_view_zoom_in->setText(QApplication::translate(
	147	"MainWindow", "Zoom &In", 0, QApplication::UnicodeUTF8));
	148	action_view_zoom_in->setIcon(QIcon::fromTheme("zoom-in",
	149	QIcon(":/icons/zoom-in.png")));
	150	action_view_zoom_in->setObjectName(
	151	QString::fromUtf8("actionViewZoomIn"));
	152	menu_view->addAction(action_view_zoom_in);
	153
	154	QAction *const action_view_zoom_out = new QAction(this);
	155	action_view_zoom_out->setText(QApplication::translate(
	156	"MainWindow", "Zoom &Out", 0, QApplication::UnicodeUTF8));
	157	action_view_zoom_out->setIcon(QIcon::fromTheme("zoom-out",
	158	QIcon(":/icons/zoom-out.png")));
	159	action_view_zoom_out->setObjectName(
	160	QString::fromUtf8("actionViewZoomOut"));
	161	menu_view->addAction(action_view_zoom_out);
	162
	163	QAction *const action_view_zoom_fit = new QAction(this);
	164	action_view_zoom_fit->setText(QApplication::translate(
	165	"MainWindow", "Zoom to &Fit", 0, QApplication::UnicodeUTF8));
	166	action_view_zoom_fit->setIcon(QIcon::fromTheme("zoom-fit",
	167	QIcon(":/icons/zoom-fit.png")));
	168	action_view_zoom_fit->setShortcut(QKeySequence(Qt::Key_F));
	169	action_view_zoom_fit->setObjectName(
	170	QString::fromUtf8("actionViewZoomFit"));
	171	menu_view->addAction(action_view_zoom_fit);
	172
	173	QAction *const action_view_zoom_one_to_one = new QAction(this);
	174	action_view_zoom_one_to_one->setText(QApplication::translate(
	175	"MainWindow", "Zoom to &One-to-One", 0,
	176	QApplication::UnicodeUTF8));
	177	action_view_zoom_one_to_one->setIcon(QIcon::fromTheme("zoom-original",
	178	QIcon(":/icons/zoom-original.png")));
	179	action_view_zoom_one_to_one->setShortcut(QKeySequence(Qt::Key_O));
	180	action_view_zoom_one_to_one->setObjectName(
	181	QString::fromUtf8("actionViewZoomOneToOne"));
	182	menu_view->addAction(action_view_zoom_one_to_one);
	183
	184	menu_view->addSeparator();
	185
	186	QAction *action_view_show_cursors = new QAction(this);
	187	action_view_show_cursors->setCheckable(true);
	188	action_view_show_cursors->setChecked(_view->cursors_shown());
	189	action_view_show_cursors->setShortcut(QKeySequence(Qt::Key_C));
	190	action_view_show_cursors->setObjectName(
	191	QString::fromUtf8("actionViewShowCursors"));
	192	action_view_show_cursors->setText(QApplication::translate(
	193	"MainWindow", "Show &Cursors", 0, QApplication::UnicodeUTF8));
	194	menu_view->addAction(action_view_show_cursors);
	195
	196	// Decoders Menu
	197	QMenu *const menu_decoders = new QMenu;
	198	menu_decoders->setTitle(QApplication::translate(
	199	"MainWindow", "&Decoders", 0, QApplication::UnicodeUTF8));
	200
	201	pv::widgets::DecoderMenu *const menu_decoders_add =
	202	new pv::widgets::DecoderMenu(menu_decoders);
	203	menu_decoders_add->setTitle(QApplication::translate(
	204	"MainWindow", "&Add", 0, QApplication::UnicodeUTF8));
	205	connect(menu_decoders_add, SIGNAL(decoder_selected(srd_decoder*)),
	206	this, SLOT(add_decoder(srd_decoder*)));
	207
	208	menu_decoders->addMenu(menu_decoders_add);
	209
	210	// Help Menu
	211	QMenu *const menu_help = new QMenu;
	212	menu_help->setTitle(QApplication::translate(
	213	"MainWindow", "&Help", 0, QApplication::UnicodeUTF8));
	214
	215	QAction *const action_about = new QAction(this);
	216	action_about->setObjectName(QString::fromUtf8("actionAbout"));
	217	action_about->setText(QApplication::translate(
	218	"MainWindow", "&About...", 0, QApplication::UnicodeUTF8));
	219	menu_help->addAction(action_about);
	220
	221	menu_bar->addAction(menu_file->menuAction());
	222	menu_bar->addAction(menu_view->menuAction());
	223	menu_bar->addAction(menu_decoders->menuAction());
	224	menu_bar->addAction(menu_help->menuAction());
	225
	226	setMenuBar(menu_bar);
	227	QMetaObject::connectSlotsByName(this);
	228
	229	// Setup the toolbar
	230	QToolBar *const toolbar = new QToolBar(tr("Main Toolbar"), this);
	231	toolbar->addAction(action_open);
	232	toolbar->addSeparator();
	233	toolbar->addAction(action_view_zoom_in);
	234	toolbar->addAction(action_view_zoom_out);
	235	toolbar->addAction(action_view_zoom_fit);
	236	addToolBar(toolbar);
	237
	238	// Setup the sampling bar
	239	_sampling_bar = new toolbars::SamplingBar(_session, this);
	240
	241	// Populate the device list and select the initially selected device
	242	update_device_list();
	243
	244	connect(_sampling_bar, SIGNAL(run_stop()), this,
	245	SLOT(run_stop()));
	246	addToolBar(_sampling_bar);
	247
	248	// Set the title
	249	setWindowTitle(QApplication::translate("MainWindow", "PulseView", 0,
	250	QApplication::UnicodeUTF8));
	251
	252	// Setup _session events
	253	connect(&_session, SIGNAL(capture_state_changed(int)), this,
	254	SLOT(capture_state_changed(int)));
	255
	256	}
	257
	258	void MainWindow::session_error(
	259	const QString text, const QString info_text)
	260	{
	261	QMetaObject::invokeMethod(this, "show_session_error",
	262	Qt::QueuedConnection, Q_ARG(QString, text),
	263	Q_ARG(QString, info_text));
	264	}
	265
	266	void MainWindow::update_device_list(struct sr_dev_inst *selected_device)
	267	{
	268	assert(_sampling_bar);
	269
	270	const list<sr_dev_inst*> &devices = _device_manager.devices();
	271	_sampling_bar->set_device_list(devices);
	272
	273	if (!selected_device && !devices.empty()) {
	274	// Fall back to the first device in the list.
	275	selected_device = devices.front();
	276
	277	// Try and find the demo device and select that by default
	278	BOOST_FOREACH (struct sr_dev_inst *sdi, devices)
	279	if (strcmp(sdi->driver->name, "demo") == 0) {
	280	selected_device = sdi;
	281	}
	282	}
	283
	284	if (selected_device) {
	285	_sampling_bar->set_selected_device(selected_device);
	286	_session.set_device(selected_device);
	287	}
	288	}
	289
	290	void MainWindow::load_file(QString file_name)
	291	{
	292	const QString errorMessage(
	293	QString("Failed to load file %1").arg(file_name));
	294	const QString infoMessage;
	295	_session.load_file(file_name.toStdString(),
	296	boost::bind(&MainWindow::session_error, this,
	297	errorMessage, infoMessage));
	298	}
	299
	300	void MainWindow::show_session_error(
	301	const QString text, const QString info_text)
	302	{
	303	QMessageBox msg(this);
	304	msg.setText(text);
	305	msg.setInformativeText(info_text);
	306	msg.setStandardButtons(QMessageBox::Ok);
	307	msg.setIcon(QMessageBox::Warning);
	308	msg.exec();
	309	}
	310
	311	void MainWindow::on_actionOpen_triggered()
	312	{
	313	// Enumerate the file formats
	314	QString filters(tr("Sigrok Sessions (*.sr)"));
	315	filters.append(tr(";;All Files (.)"));
	316
	317	// Show the dialog
	318	const QString file_name = QFileDialog::getOpenFileName(
	319	this, tr("Open File"), "", filters);
	320	if (!file_name.isEmpty())
	321	load_file(file_name);
	322	}
	323
	324	void MainWindow::on_actionConnect_triggered()
	325	{
	326	// Stop any currently running capture session
	327	_session.stop_capture();
	328
	329	dialogs::Connect dlg(this, _device_manager);
	330
	331	// If the user selected a device, select it in the device list. Select the
	332	// current device otherwise.
	333	struct sr_dev_inst *const sdi = dlg.exec() ?
	334	dlg.get_selected_device() : _session.get_device();
	335
	336	update_device_list(sdi);
	337	}
	338
	339	void MainWindow::on_actionQuit_triggered()
	340	{
	341	close();
	342	}
	343
	344	void MainWindow::on_actionViewZoomIn_triggered()
	345	{
	346	_view->zoom(1);
	347	}
	348
	349	void MainWindow::on_actionViewZoomOut_triggered()
	350	{
	351	_view->zoom(-1);
	352	}
	353
	354	void MainWindow::on_actionViewZoomFit_triggered()
	355	{
	356	_view->zoom_fit();
	357	}
	358
	359	void MainWindow::on_actionViewZoomOneToOne_triggered()
	360	{
	361	_view->zoom_one_to_one();
	362	}
	363
	364	void MainWindow::on_actionViewShowCursors_triggered()
	365	{
	366	assert(_view);
	367
	368	const bool show = !_view->cursors_shown();
	369	if(show)
	370	_view->centre_cursors();
	371
	372	_view->show_cursors(show);
	373	}
	374
	375	void MainWindow::on_actionAbout_triggered()
	376	{
	377	dialogs::About dlg(this);
	378	dlg.exec();
	379	}
	380
	381	void MainWindow::add_decoder(srd_decoder *decoder)
	382	{
	383	assert(decoder);
	384	_session.add_decoder(decoder);
	385	}
	386
	387	void MainWindow::run_stop()
	388	{
	389	switch(_session.get_capture_state()) {
	390	case SigSession::Stopped:
	391	_session.start_capture(_sampling_bar->get_record_length(),
	392	boost::bind(&MainWindow::session_error, this,
	393	QString("Capture failed"), _1));
	394	break;
	395
	396	case SigSession::AwaitingTrigger:
	397	case SigSession::Running:
	398	_session.stop_capture();
	399	break;
	400	}
	401	}
	402
	403	void MainWindow::capture_state_changed(int state)
	404	{
	405	_sampling_bar->set_capture_state((pv::SigSession::capture_state)state);
	406	}
	407
	408	} // namespace pv