pv/mainwindow.cpp

   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 <cassert>
  22
  23 #ifdef ENABLE_DECODE
  24 #include <libsigrokdecode/libsigrokdecode.h>
  25 #endif
  26
  27 #include <algorithm>
  28 #include <iterator>
  29
  30 #include <boost/algorithm/string/join.hpp>
  31
  32 #include <QAction>
  33 #include <QApplication>
  34 #include <QButtonGroup>
  35 #include <QCloseEvent>
  36 #include <QFileDialog>
  37 #include <QMessageBox>
  38 #include <QMenu>
  39 #include <QMenuBar>
  40 #include <QSettings>
  41 #include <QStatusBar>
  42 #include <QVBoxLayout>
  43 #include <QWidget>
  44
  45 #include "mainwindow.hpp"
  46
  47 #include "devicemanager.hpp"
  48 #include "util.hpp"
  49 #include "data/segment.hpp"
  50 #include "devices/hardwaredevice.hpp"
  51 #include "devices/inputfile.hpp"
  52 #include "devices/sessionfile.hpp"
  53 #include "dialogs/about.hpp"
  54 #include "dialogs/connect.hpp"
  55 #include "dialogs/inputoutputoptions.hpp"
  56 #include "dialogs/storeprogress.hpp"
  57 #include "toolbars/mainbar.hpp"
  58 #include "view/logicsignal.hpp"
  59 #include "view/view.hpp"
  60 #include "widgets/exportmenu.hpp"
  61 #include "widgets/importmenu.hpp"
  62 #ifdef ENABLE_DECODE
  63 #include "widgets/decodermenu.hpp"
  64 #endif
  65 #include "widgets/hidingmenubar.hpp"
  66
  67 #include <inttypes.h>
  68 #include <stdint.h>
  69 #include <stdarg.h>
  70 #include <glib.h>
  71 #include <libsigrokcxx/libsigrokcxx.hpp>
  72
  73 using std::cerr;
  74 using std::endl;
  75 using std::list;
  76 using std::map;
  77 using std::pair;
  78 using std::shared_ptr;
  79 using std::string;
  80 using std::vector;
  81
  82 using boost::algorithm::join;
  83
  84 using sigrok::Error;
  85 using sigrok::OutputFormat;
  86 using sigrok::InputFormat;
  87
  88 namespace pv {
  89
  90 namespace view {
  91 class ViewItem;
  92 }
  93
  94 const char *MainWindow::SettingOpenDirectory = "MainWindow/OpenDirectory";
  95 const char *MainWindow::SettingSaveDirectory = "MainWindow/SaveDirectory";
  96
  97 MainWindow::MainWindow(DeviceManager &device_manager,
  98         string open_file_name, string open_file_format,
  99         QWidget *parent) :
 100         QMainWindow(parent),
 101         device_manager_(device_manager),
 102         session_(device_manager),
 103         action_open_(new QAction(this)),
 104         action_save_as_(new QAction(this)),
 105         action_save_selection_as_(new QAction(this)),
 106         action_connect_(new QAction(this)),
 107         action_quit_(new QAction(this)),
 108         action_view_zoom_in_(new QAction(this)),
 109         action_view_zoom_out_(new QAction(this)),
 110         action_view_zoom_fit_(new QAction(this)),
 111         action_view_zoom_one_to_one_(new QAction(this)),
 112         action_view_sticky_scrolling_(new QAction(this)),
 113         action_view_show_cursors_(new QAction(this)),
 114         action_about_(new QAction(this))
 115 #ifdef ENABLE_DECODE
 116         , menu_decoders_add_(new pv::widgets::DecoderMenu(this, true))
 117 #endif
 118 {
 119         setup_ui();
 120         restore_ui_settings();
 121         if (open_file_name.empty())
 122                 select_init_device();
 123         else
 124                 load_init_file(open_file_name, open_file_format);
 125 }
 126
 127 QAction* MainWindow::action_open() const
 128 {
 129         return action_open_;
 130 }
 131
 132 QAction* MainWindow::action_save_as() const
 133 {
 134         return action_save_as_;
 135 }
 136
 137 QAction* MainWindow::action_save_selection_as() const
 138 {
 139         return action_save_selection_as_;
 140 }
 141
 142 QAction* MainWindow::action_connect() const
 143 {
 144         return action_connect_;
 145 }
 146
 147 QAction* MainWindow::action_quit() const
 148 {
 149         return action_quit_;
 150 }
 151
 152 QAction* MainWindow::action_view_zoom_in() const
 153 {
 154         return action_view_zoom_in_;
 155 }
 156
 157 QAction* MainWindow::action_view_zoom_out() const
 158 {
 159         return action_view_zoom_out_;
 160 }
 161
 162 QAction* MainWindow::action_view_zoom_fit() const
 163 {
 164         return action_view_zoom_fit_;
 165 }
 166
 167 QAction* MainWindow::action_view_zoom_one_to_one() const
 168 {
 169         return action_view_zoom_one_to_one_;
 170 }
 171
 172 QAction* MainWindow::action_view_sticky_scrolling() const
 173 {
 174         return action_view_sticky_scrolling_;
 175 }
 176
 177 QAction* MainWindow::action_view_show_cursors() const
 178 {
 179         return action_view_show_cursors_;
 180 }
 181
 182 QAction* MainWindow::action_about() const
 183 {
 184         return action_about_;
 185 }
 186
 187 #ifdef ENABLE_DECODE
 188 QMenu* MainWindow::menu_decoder_add() const
 189 {
 190         return menu_decoders_add_;
 191 }
 192 #endif
 193
 194 void MainWindow::run_stop()
 195 {
 196         switch(session_.get_capture_state()) {
 197         case Session::Stopped:
 198                 session_.start_capture([&](QString message) {
 199                         session_error("Capture failed", message); });
 200                 break;
 201
 202         case Session::AwaitingTrigger:
 203         case Session::Running:
 204                 session_.stop_capture();
 205                 break;
 206         }
 207 }
 208
 209 void MainWindow::select_device(shared_ptr<devices::Device> device)
 210 {
 211         try {
 212                 if (device)
 213                         session_.set_device(device);
 214                 else
 215                         session_.set_default_device();
 216         } catch(const QString &e) {
 217                 QMessageBox msg(this);
 218                 msg.setText(e);
 219                 msg.setInformativeText(tr("Failed to Select Device"));
 220                 msg.setStandardButtons(QMessageBox::Ok);
 221                 msg.setIcon(QMessageBox::Warning);
 222                 msg.exec();
 223         }
 224 }
 225
 226 void MainWindow::export_file(shared_ptr<OutputFormat> format)
 227 {
 228         using pv::dialogs::StoreProgress;
 229
 230         // Stop any currently running capture session
 231         session_.stop_capture();
 232
 233         QSettings settings;
 234         const QString dir = settings.value(SettingSaveDirectory).toString();
 235
 236         // Construct the filter
 237         const vector<string> exts = format->extensions();
 238         QString filter = tr("%1 files ").arg(
 239                 QString::fromStdString(format->description()));
 240
 241         if (exts.empty())
 242                 filter += "(*.*)";
 243         else
 244                 filter += QString("(*.%1);;%2 (*.*)").arg(
 245                         QString::fromStdString(join(exts, ", *."))).arg(
 246                         tr("All Files"));
 247
 248         // Show the file dialog
 249         const QString file_name = QFileDialog::getSaveFileName(
 250                 this, tr("Save File"), dir, filter);
 251
 252         if (file_name.isEmpty())
 253                 return;
 254
 255         const QString abs_path = QFileInfo(file_name).absolutePath();
 256         settings.setValue(SettingSaveDirectory, abs_path);
 257
 258         // Show the options dialog
 259         map<string, Glib::VariantBase> options;
 260         if (!format->options().empty()) {
 261                 dialogs::InputOutputOptions dlg(
 262                         tr("Export %1").arg(QString::fromStdString(
 263                                 format->description())),
 264                         format->options(), this);
 265                 if (!dlg.exec())
 266                         return;
 267                 options = dlg.options();
 268         }
 269
 270         const std::pair<uint64_t, uint64_t> sample_range = std::make_pair(0, 0);
 271
 272         StoreProgress *dlg = new StoreProgress(file_name, format, options,
 273                 sample_range, session_, this);
 274         dlg->run();
 275 }
 276
 277 void MainWindow::import_file(shared_ptr<InputFormat> format)
 278 {
 279         assert(format);
 280
 281         QSettings settings;
 282         const QString dir = settings.value(SettingOpenDirectory).toString();
 283
 284         // Construct the filter
 285         const vector<string> exts = format->extensions();
 286         const QString filter = exts.empty() ? "" :
 287                 tr("%1 files (*.%2)").arg(
 288                         QString::fromStdString(format->description())).arg(
 289                         QString::fromStdString(join(exts, ", *.")));
 290
 291         // Show the file dialog
 292         const QString file_name = QFileDialog::getOpenFileName(
 293                 this, tr("Import File"), dir, tr(
 294                         "%1 files (*.*);;All Files (*.*)").arg(
 295                         QString::fromStdString(format->description())));
 296
 297         if (file_name.isEmpty())
 298                 return;
 299
 300         // Show the options dialog
 301         map<string, Glib::VariantBase> options;
 302         if (!format->options().empty()) {
 303                 dialogs::InputOutputOptions dlg(
 304                         tr("Import %1").arg(QString::fromStdString(
 305                                 format->description())),
 306                         format->options(), this);
 307                 if (!dlg.exec())
 308                         return;
 309                 options = dlg.options();
 310         }
 311
 312         load_file(file_name, format, options);
 313
 314         const QString abs_path = QFileInfo(file_name).absolutePath();
 315         settings.setValue(SettingOpenDirectory, abs_path);
 316 }
 317
 318 void MainWindow::setup_ui()
 319 {
 320         setObjectName(QString::fromUtf8("MainWindow"));
 321
 322         // Set the window icon
 323         QIcon icon;
 324         icon.addFile(QString(":/icons/sigrok-logo-notext.svg"));
 325         setWindowIcon(icon);
 326
 327         // Setup the central widget
 328         central_widget_ = new QWidget(this);
 329         vertical_layout_ = new QVBoxLayout(central_widget_);
 330         vertical_layout_->setSpacing(6);
 331         vertical_layout_->setContentsMargins(0, 0, 0, 0);
 332         setCentralWidget(central_widget_);
 333
 334         view_ = new pv::view::View(session_, this);
 335
 336         vertical_layout_->addWidget(view_);
 337
 338         // Setup the menu bar
 339         pv::widgets::HidingMenuBar *const menu_bar =
 340                 new pv::widgets::HidingMenuBar(this);
 341
 342         // File Menu
 343         QMenu *const menu_file = new QMenu;
 344         menu_file->setTitle(tr("&File"));
 345
 346         action_open_->setText(tr("&Open..."));
 347         action_open_->setIcon(QIcon::fromTheme("document-open",
 348                 QIcon(":/icons/document-open.png")));
 349         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
 350         action_open_->setObjectName(QString::fromUtf8("actionOpen"));
 351         menu_file->addAction(action_open_);
 352
 353         action_save_as_->setText(tr("&Save As..."));
 354         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
 355                 QIcon(":/icons/document-save-as.png")));
 356         action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
 357         action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
 358         menu_file->addAction(action_save_as_);
 359
 360         action_save_selection_as_->setText(tr("Save Selected &Range As..."));
 361         action_save_selection_as_->setIcon(QIcon::fromTheme("document-save-as",
 362                 QIcon(":/icons/document-save-as.png")));
 363         action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
 364         action_save_selection_as_->setObjectName(QString::fromUtf8("actionSaveSelectionAs"));
 365         menu_file->addAction(action_save_selection_as_);
 366
 367         menu_file->addSeparator();
 368
 369         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
 370                 device_manager_.context());
 371         menu_file_export->setTitle(tr("&Export"));
 372         connect(menu_file_export,
 373                 SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
 374                 this, SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
 375         menu_file->addAction(menu_file_export->menuAction());
 376
 377         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
 378                 device_manager_.context());
 379         menu_file_import->setTitle(tr("&Import"));
 380         connect(menu_file_import,
 381                 SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
 382                 this, SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
 383         menu_file->addAction(menu_file_import->menuAction());
 384
 385         menu_file->addSeparator();
 386
 387         action_connect_->setText(tr("&Connect to Device..."));
 388         action_connect_->setObjectName(QString::fromUtf8("actionConnect"));
 389         menu_file->addAction(action_connect_);
 390
 391         menu_file->addSeparator();
 392
 393         action_quit_->setText(tr("&Quit"));
 394         action_quit_->setIcon(QIcon::fromTheme("application-exit",
 395                 QIcon(":/icons/application-exit.png")));
 396         action_quit_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 397         action_quit_->setObjectName(QString::fromUtf8("actionQuit"));
 398         menu_file->addAction(action_quit_);
 399
 400         // View Menu
 401         QMenu *menu_view = new QMenu;
 402         menu_view->setTitle(tr("&View"));
 403
 404         action_view_zoom_in_->setText(tr("Zoom &In"));
 405         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
 406                 QIcon(":/icons/zoom-in.png")));
 407         // simply using Qt::Key_Plus shows no + in the menu
 408         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
 409         action_view_zoom_in_->setObjectName(
 410                 QString::fromUtf8("actionViewZoomIn"));
 411         menu_view->addAction(action_view_zoom_in_);
 412
 413         action_view_zoom_out_->setText(tr("Zoom &Out"));
 414         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
 415                 QIcon(":/icons/zoom-out.png")));
 416         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
 417         action_view_zoom_out_->setObjectName(
 418                 QString::fromUtf8("actionViewZoomOut"));
 419         menu_view->addAction(action_view_zoom_out_);
 420
 421         action_view_zoom_fit_->setCheckable(true);
 422         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
 423         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit",
 424                 QIcon(":/icons/zoom-fit.png")));
 425         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
 426         action_view_zoom_fit_->setObjectName(
 427                 QString::fromUtf8("actionViewZoomFit"));
 428         menu_view->addAction(action_view_zoom_fit_);
 429
 430         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
 431         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
 432                 QIcon(":/icons/zoom-original.png")));
 433         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
 434         action_view_zoom_one_to_one_->setObjectName(
 435                 QString::fromUtf8("actionViewZoomOneToOne"));
 436         menu_view->addAction(action_view_zoom_one_to_one_);
 437
 438         menu_file->addSeparator();
 439
 440         action_view_sticky_scrolling_->setCheckable(true);
 441         action_view_sticky_scrolling_->setChecked(true);
 442         action_view_sticky_scrolling_->setShortcut(QKeySequence(Qt::Key_S));
 443         action_view_sticky_scrolling_->setObjectName(
 444                 QString::fromUtf8("actionViewStickyScrolling"));
 445         action_view_sticky_scrolling_->setText(tr("&Sticky Scrolling"));
 446         menu_view->addAction(action_view_sticky_scrolling_);
 447
 448         view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
 449
 450         menu_view->addSeparator();
 451
 452         action_view_show_cursors_->setCheckable(true);
 453         action_view_show_cursors_->setChecked(view_->cursors_shown());
 454         action_view_show_cursors_->setIcon(QIcon::fromTheme("show-cursors",
 455                 QIcon(":/icons/show-cursors.svg")));
 456         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
 457         action_view_show_cursors_->setObjectName(
 458                 QString::fromUtf8("actionViewShowCursors"));
 459         action_view_show_cursors_->setText(tr("Show &Cursors"));
 460         menu_view->addAction(action_view_show_cursors_);
 461
 462         // Decoders Menu
 463 #ifdef ENABLE_DECODE
 464         QMenu *const menu_decoders = new QMenu;
 465         menu_decoders->setTitle(tr("&Decoders"));
 466
 467         menu_decoders_add_->setTitle(tr("&Add"));
 468         connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
 469                 this, SLOT(add_decoder(srd_decoder*)));
 470
 471         menu_decoders->addMenu(menu_decoders_add_);
 472 #endif
 473
 474         // Help Menu
 475         QMenu *const menu_help = new QMenu;
 476         menu_help->setTitle(tr("&Help"));
 477
 478         action_about_->setObjectName(QString::fromUtf8("actionAbout"));
 479         action_about_->setText(tr("&About..."));
 480         menu_help->addAction(action_about_);
 481
 482         menu_bar->addAction(menu_file->menuAction());
 483         menu_bar->addAction(menu_view->menuAction());
 484 #ifdef ENABLE_DECODE
 485         menu_bar->addAction(menu_decoders->menuAction());
 486 #endif
 487         menu_bar->addAction(menu_help->menuAction());
 488
 489         setMenuBar(menu_bar);
 490         QMetaObject::connectSlotsByName(this);
 491
 492         // Also add all actions to the main window for always-enabled hotkeys
 493         for (QAction* action : menu_bar->actions())
 494                 this->addAction(action);
 495
 496         // Setup the toolbar
 497         main_bar_ = new toolbars::MainBar(session_, *this);
 498
 499         // Populate the device list and select the initially selected device
 500         update_device_list();
 501
 502         addToolBar(main_bar_);
 503
 504         // Set the title
 505         setWindowTitle(tr("PulseView"));
 506
 507         // Setup session_ events
 508         connect(&session_, SIGNAL(capture_state_changed(int)), this,
 509                 SLOT(capture_state_changed(int)));
 510         connect(&session_, SIGNAL(device_selected()), this,
 511                 SLOT(device_selected()));
 512
 513         // Setup view_ events
 514         connect(view_, SIGNAL(sticky_scrolling_changed(bool)), this,
 515                 SLOT(sticky_scrolling_changed(bool)));
 516         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)), this,
 517                 SLOT(always_zoom_to_fit_changed(bool)));
 518 }
 519
 520 void MainWindow::select_init_device() {
 521         QSettings settings;
 522         map<string, string> dev_info;
 523         list<string> key_list;
 524
 525         // Re-select last used device if possible.
 526         settings.beginGroup("Device");
 527         key_list.push_back("vendor");
 528         key_list.push_back("model");
 529         key_list.push_back("version");
 530         key_list.push_back("serial_num");
 531         key_list.push_back("connection_id");
 532
 533         for (string key : key_list) {
 534                 const QString k = QString::fromStdString(key);
 535                 if (!settings.contains(k))
 536                         continue;
 537
 538                 const string value = settings.value(k).toString().toStdString();
 539                 if (!value.empty())
 540                         dev_info.insert(std::make_pair(key, value));
 541         }
 542
 543         const shared_ptr<devices::HardwareDevice> device =
 544                 device_manager_.find_device_from_info(dev_info);
 545         select_device(device);
 546         update_device_list();
 547
 548         settings.endGroup();
 549 }
 550
 551 void MainWindow::load_init_file(const std::string &file_name,
 552         const std::string &format) {
 553         shared_ptr<InputFormat> input_format;
 554
 555         if (!format.empty()) {
 556                 const map<string, shared_ptr<InputFormat> > formats =
 557                         device_manager_.context()->input_formats();
 558                 const auto iter = find_if(formats.begin(), formats.end(),
 559                         [&](const pair<string, shared_ptr<InputFormat> > f) {
 560                                 return f.first == format; });
 561                 if (iter == formats.end()) {
 562                         cerr << "Unexpected input format: " << format << endl;
 563                         return;
 564                 }
 565
 566                 input_format = (*iter).second;
 567         }
 568
 569         load_file(QString::fromStdString(file_name), input_format);
 570 }
 571
 572
 573 void MainWindow::save_ui_settings()
 574 {
 575         QSettings settings;
 576
 577         map<string, string> dev_info;
 578         list<string> key_list;
 579
 580         settings.beginGroup("MainWindow");
 581         settings.setValue("state", saveState());
 582         settings.setValue("geometry", saveGeometry());
 583         settings.endGroup();
 584
 585         if (session_.device()) {
 586                 settings.beginGroup("Device");
 587                 key_list.push_back("vendor");
 588                 key_list.push_back("model");
 589                 key_list.push_back("version");
 590                 key_list.push_back("serial_num");
 591                 key_list.push_back("connection_id");
 592
 593                 dev_info = device_manager_.get_device_info(
 594                         session_.device());
 595
 596                 for (string key : key_list) {
 597
 598                         if (dev_info.count(key))
 599                                 settings.setValue(QString::fromUtf8(key.c_str()),
 600                                                 QString::fromUtf8(dev_info.at(key).c_str()));
 601                         else
 602                                 settings.remove(QString::fromUtf8(key.c_str()));
 603                 }
 604
 605                 settings.endGroup();
 606         }
 607 }
 608
 609 void MainWindow::restore_ui_settings()
 610 {
 611         QSettings settings;
 612
 613         settings.beginGroup("MainWindow");
 614
 615         if (settings.contains("geometry")) {
 616                 restoreGeometry(settings.value("geometry").toByteArray());
 617                 restoreState(settings.value("state").toByteArray());
 618         } else
 619                 resize(1000, 720);
 620
 621         settings.endGroup();
 622 }
 623
 624 void MainWindow::session_error(
 625         const QString text, const QString info_text)
 626 {
 627         QMetaObject::invokeMethod(this, "show_session_error",
 628                 Qt::QueuedConnection, Q_ARG(QString, text),
 629                 Q_ARG(QString, info_text));
 630 }
 631
 632 void MainWindow::update_device_list()
 633 {
 634         main_bar_->update_device_list();
 635 }
 636
 637 void MainWindow::load_file(QString file_name,
 638         std::shared_ptr<sigrok::InputFormat> format,
 639         const std::map<std::string, Glib::VariantBase> &options)
 640 {
 641         const QString errorMessage(
 642                 QString("Failed to load file %1").arg(file_name));
 643
 644         try {
 645                 if (format)
 646                         session_.set_device(shared_ptr<devices::Device>(
 647                                 new devices::InputFile(
 648                                         device_manager_.context(),
 649                                         file_name.toStdString(),
 650                                         format, options)));
 651                 else
 652                         session_.set_device(shared_ptr<devices::Device>(
 653                                 new devices::SessionFile(
 654                                         device_manager_.context(),
 655                                         file_name.toStdString())));
 656         } catch(Error e) {
 657                 show_session_error(tr("Failed to load ") + file_name, e.what());
 658                 session_.set_default_device();
 659                 update_device_list();
 660                 return;
 661         }
 662
 663         update_device_list();
 664
 665         session_.start_capture([&, errorMessage](QString infoMessage) {
 666                 session_error(errorMessage, infoMessage); });
 667 }
 668
 669 void MainWindow::save_selection_to_file()
 670 {
 671         // Stop any currently running capture session
 672         session_.stop_capture();
 673
 674         // Verify that the cursors are active and fetch their values
 675         if (!view_->cursors()->enabled()) {
 676                 show_session_error(tr("Missing Cursors"), tr("You need to set the " \
 677                                 "cursors before you can save the data enclosed by them " \
 678                                 "to a session file (e.g. using ALT-V - Show Cursors)."));
 679                 return;
 680         }
 681
 682         const double samplerate = session_.get_samplerate();
 683
 684         const pv::util::Timestamp& start_time = view_->cursors()->first()->time();
 685         const pv::util::Timestamp& end_time = view_->cursors()->second()->time();
 686
 687         const uint64_t start_sample = start_time.convert_to<double>() * samplerate;
 688     const uint64_t end_sample = end_time.convert_to<double>() * samplerate;
 689
 690         const std::pair<uint64_t, uint64_t> sample_range =
 691                         std::make_pair(start_sample, end_sample);
 692
 693         // Ask for output file name
 694         QSettings settings;
 695         const QString dir = settings.value(SettingSaveDirectory).toString();
 696
 697         shared_ptr<OutputFormat> format =
 698                         device_manager_.context()->output_formats()["srzip"];
 699
 700         const vector<string> exts = format->extensions();
 701         QString filter = tr("%1 files ").arg(
 702                 QString::fromStdString(format->description()));
 703
 704         if (exts.empty())
 705                 filter += "(*.*)";
 706         else
 707                 filter += QString("(*.%1);;%2 (*.*)").arg(
 708                         QString::fromStdString(join(exts, ", *."))).arg(
 709                         tr("All Files"));
 710
 711         const QString file_name = QFileDialog::getSaveFileName(
 712                 this, tr("Save File"), dir, filter);
 713
 714         if (file_name.isEmpty())
 715                 return;
 716
 717         const QString abs_path = QFileInfo(file_name).absolutePath();
 718         settings.setValue(SettingSaveDirectory, abs_path);
 719
 720         // Show the options dialog
 721         map<string, Glib::VariantBase> options;
 722         if (!format->options().empty()) {
 723                 dialogs::InputOutputOptions dlg(
 724                         tr("Export %1").arg(QString::fromStdString(
 725                                 format->description())),
 726                         format->options(), this);
 727                 if (!dlg.exec())
 728                         return;
 729                 options = dlg.options();
 730         }
 731
 732         // Save
 733         pv::dialogs::StoreProgress *dlg = new pv::dialogs::StoreProgress(file_name,
 734                 format, options, sample_range, session_, this);
 735         dlg->run();
 736 }
 737
 738 void MainWindow::closeEvent(QCloseEvent *event)
 739 {
 740         save_ui_settings();
 741         event->accept();
 742 }
 743
 744 void MainWindow::keyReleaseEvent(QKeyEvent *event)
 745 {
 746         if (event->key() == Qt::Key_Alt) {
 747                 menuBar()->setHidden(!menuBar()->isHidden());
 748                 menuBar()->setFocus();
 749         }
 750         QMainWindow::keyReleaseEvent(event);
 751 }
 752
 753 void MainWindow::show_session_error(
 754         const QString text, const QString info_text)
 755 {
 756         QMessageBox msg(this);
 757         msg.setText(text);
 758         msg.setInformativeText(info_text);
 759         msg.setStandardButtons(QMessageBox::Ok);
 760         msg.setIcon(QMessageBox::Warning);
 761         msg.exec();
 762 }
 763
 764 void MainWindow::on_actionOpen_triggered()
 765 {
 766         QSettings settings;
 767         const QString dir = settings.value(SettingOpenDirectory).toString();
 768
 769         // Show the dialog
 770         const QString file_name = QFileDialog::getOpenFileName(
 771                 this, tr("Open File"), dir, tr(
 772                         "Sigrok Sessions (*.sr);;"
 773                         "All Files (*.*)"));
 774
 775         if (!file_name.isEmpty()) {
 776                 load_file(file_name);
 777
 778                 const QString abs_path = QFileInfo(file_name).absolutePath();
 779                 settings.setValue(SettingOpenDirectory, abs_path);
 780         }
 781 }
 782
 783 void MainWindow::on_actionSaveAs_triggered()
 784 {
 785         export_file(device_manager_.context()->output_formats()["srzip"]);
 786 }
 787
 788 void MainWindow::on_actionSaveSelectionAs_triggered()
 789 {
 790         save_selection_to_file();
 791 }
 792
 793 void MainWindow::on_actionConnect_triggered()
 794 {
 795         // Stop any currently running capture session
 796         session_.stop_capture();
 797
 798         dialogs::Connect dlg(this, device_manager_);
 799
 800         // If the user selected a device, select it in the device list. Select the
 801         // current device otherwise.
 802         if (dlg.exec())
 803                 select_device(dlg.get_selected_device());
 804
 805         update_device_list();
 806 }
 807
 808 void MainWindow::on_actionQuit_triggered()
 809 {
 810         close();
 811 }
 812
 813 void MainWindow::on_actionViewZoomIn_triggered()
 814 {
 815         view_->zoom(1);
 816 }
 817
 818 void MainWindow::on_actionViewZoomOut_triggered()
 819 {
 820         view_->zoom(-1);
 821 }
 822
 823 void MainWindow::on_actionViewZoomFit_triggered()
 824 {
 825         view_->zoom_fit(action_view_zoom_fit_->isChecked());
 826 }
 827
 828 void MainWindow::on_actionViewZoomOneToOne_triggered()
 829 {
 830         view_->zoom_one_to_one();
 831 }
 832
 833 void MainWindow::on_actionViewStickyScrolling_triggered()
 834 {
 835         view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
 836 }
 837
 838 void MainWindow::on_actionViewShowCursors_triggered()
 839 {
 840         assert(view_);
 841
 842         const bool show = !view_->cursors_shown();
 843         if (show)
 844                 view_->centre_cursors();
 845
 846         view_->show_cursors(show);
 847 }
 848
 849 void MainWindow::on_actionAbout_triggered()
 850 {
 851         dialogs::About dlg(device_manager_.context(), this);
 852         dlg.exec();
 853 }
 854
 855 void MainWindow::sticky_scrolling_changed(bool state)
 856 {
 857         action_view_sticky_scrolling_->setChecked(state);
 858 }
 859
 860 void MainWindow::always_zoom_to_fit_changed(bool state)
 861 {
 862         action_view_zoom_fit_->setChecked(state);
 863 }
 864
 865 void MainWindow::add_decoder(srd_decoder *decoder)
 866 {
 867 #ifdef ENABLE_DECODE
 868         assert(decoder);
 869         session_.add_decoder(decoder);
 870 #else
 871         (void)decoder;
 872 #endif
 873 }
 874
 875 void MainWindow::capture_state_changed(int state)
 876 {
 877         main_bar_->set_capture_state((pv::Session::capture_state)state);
 878 }
 879
 880 void MainWindow::device_selected()
 881 {
 882         // Set the title to include the device/file name
 883         const shared_ptr<devices::Device> device = session_.device();
 884         if (!device)
 885                 return;
 886
 887         const string display_name = device->display_name(device_manager_);
 888         setWindowTitle(tr("%1 - PulseView").arg(display_name.c_str()));
 889 }
 890
 891 } // namespace pv