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 <QDockWidget>
  46
  47 #include "mainwindow.hpp"
  48
  49 #include "devicemanager.hpp"
  50 #include "util.hpp"
  51 #include "data/segment.hpp"
  52 #include "devices/hardwaredevice.hpp"
  53 #include "devices/inputfile.hpp"
  54 #include "devices/sessionfile.hpp"
  55 #include "dialogs/about.hpp"
  56 #include "dialogs/connect.hpp"
  57 #include "dialogs/inputoutputoptions.hpp"
  58 #include "dialogs/storeprogress.hpp"
  59 #include "toolbars/mainbar.hpp"
  60 #include "view/logicsignal.hpp"
  61 #include "view/view.hpp"
  62 #include "widgets/exportmenu.hpp"
  63 #include "widgets/importmenu.hpp"
  64 #ifdef ENABLE_DECODE
  65 #include "widgets/decodermenu.hpp"
  66 #endif
  67 #include "widgets/hidingmenubar.hpp"
  68
  69 #include <inttypes.h>
  70 #include <stdint.h>
  71 #include <stdarg.h>
  72 #include <glib.h>
  73 #include <libsigrokcxx/libsigrokcxx.hpp>
  74
  75 using std::cerr;
  76 using std::endl;
  77 using std::list;
  78 using std::make_shared;
  79 using std::map;
  80 using std::max;
  81 using std::pair;
  82 using std::shared_ptr;
  83 using std::string;
  84 using std::vector;
  85
  86 using boost::algorithm::join;
  87
  88 using sigrok::Error;
  89 using sigrok::OutputFormat;
  90 using sigrok::InputFormat;
  91
  92 namespace pv {
  93
  94 namespace view {
  95 class ViewItem;
  96 }
  97
  98 const char *MainWindow::SettingOpenDirectory = "MainWindow/OpenDirectory";
  99 const char *MainWindow::SettingSaveDirectory = "MainWindow/SaveDirectory";
 100
 101 MainWindow::MainWindow(DeviceManager &device_manager,
 102         string open_file_name, string open_file_format,
 103         QWidget *parent) :
 104         QMainWindow(parent),
 105         device_manager_(device_manager),
 106         session_(device_manager),
 107         action_open_(new QAction(this)),
 108         action_save_as_(new QAction(this)),
 109         action_save_selection_as_(new QAction(this)),
 110         action_connect_(new QAction(this)),
 111         action_quit_(new QAction(this)),
 112         action_view_zoom_in_(new QAction(this)),
 113         action_view_zoom_out_(new QAction(this)),
 114         action_view_zoom_fit_(new QAction(this)),
 115         action_view_zoom_one_to_one_(new QAction(this)),
 116         action_view_sticky_scrolling_(new QAction(this)),
 117         action_view_coloured_bg_(new QAction(this)),
 118         action_view_show_cursors_(new QAction(this)),
 119         action_about_(new QAction(this))
 120 #ifdef ENABLE_DECODE
 121         , menu_decoders_add_(new pv::widgets::DecoderMenu(this, true))
 122 #endif
 123 {
 124         qRegisterMetaType<util::Timestamp>("util::Timestamp");
 125
 126         setup_ui();
 127         restore_ui_settings();
 128         if (open_file_name.empty())
 129                 select_init_device();
 130         else
 131                 load_init_file(open_file_name, open_file_format);
 132 }
 133
 134 QAction* MainWindow::action_open() const
 135 {
 136         return action_open_;
 137 }
 138
 139 QAction* MainWindow::action_save_as() const
 140 {
 141         return action_save_as_;
 142 }
 143
 144 QAction* MainWindow::action_save_selection_as() const
 145 {
 146         return action_save_selection_as_;
 147 }
 148
 149 QAction* MainWindow::action_connect() const
 150 {
 151         return action_connect_;
 152 }
 153
 154 QAction* MainWindow::action_quit() const
 155 {
 156         return action_quit_;
 157 }
 158
 159 QAction* MainWindow::action_view_zoom_in() const
 160 {
 161         return action_view_zoom_in_;
 162 }
 163
 164 QAction* MainWindow::action_view_zoom_out() const
 165 {
 166         return action_view_zoom_out_;
 167 }
 168
 169 QAction* MainWindow::action_view_zoom_fit() const
 170 {
 171         return action_view_zoom_fit_;
 172 }
 173
 174 QAction* MainWindow::action_view_zoom_one_to_one() const
 175 {
 176         return action_view_zoom_one_to_one_;
 177 }
 178
 179 QAction* MainWindow::action_view_sticky_scrolling() const
 180 {
 181         return action_view_sticky_scrolling_;
 182 }
 183
 184 QAction* MainWindow::action_view_coloured_bg() const
 185 {
 186         return action_view_coloured_bg_;
 187 }
 188
 189 QAction* MainWindow::action_view_show_cursors() const
 190 {
 191         return action_view_show_cursors_;
 192 }
 193
 194 QAction* MainWindow::action_about() const
 195 {
 196         return action_about_;
 197 }
 198
 199 #ifdef ENABLE_DECODE
 200 QMenu* MainWindow::menu_decoder_add() const
 201 {
 202         return menu_decoders_add_;
 203 }
 204 #endif
 205
 206 shared_ptr<pv::view::View> MainWindow::get_active_view() const
 207 {
 208         // If there's only one view, use it...
 209         if (view_docks_.size() == 1)
 210                 return view_docks_.begin()->second;
 211
 212         // ...otherwise find the dock widget the widget with focus is contained in
 213         QObject *w = QApplication::focusWidget();
 214         QDockWidget *dock = 0;
 215
 216         while (w) {
 217             dock = qobject_cast<QDockWidget*>(w);
 218             if (dock)
 219                 break;
 220             w = w->parent();
 221         }
 222
 223         // Get the view contained in the dock widget
 224         for (auto entry : view_docks_)
 225                 if (entry.first.get() == dock)
 226                         return entry.second;
 227
 228         return shared_ptr<pv::view::View>();
 229 }
 230
 231 shared_ptr<pv::view::View> MainWindow::add_view(const QString &title,
 232         view::ViewType type, Session &session)
 233 {
 234         shared_ptr<pv::view::View> v;
 235
 236         if (type == pv::view::TraceView)
 237                 v = make_shared<pv::view::View>(session, this);
 238
 239         if (v) {
 240                 shared_ptr<QDockWidget> dock = make_shared<QDockWidget>(title, this);
 241                 dock->setWidget(v.get());
 242                 dock->setObjectName(title);
 243                 addDockWidget(Qt::TopDockWidgetArea, dock.get());
 244                 view_docks_[dock] = v;
 245
 246                 dock->setFeatures(QDockWidget::DockWidgetMovable |
 247                         QDockWidget::DockWidgetFloatable);
 248
 249                 if (type == view::TraceView) {
 250                         connect(&session, SIGNAL(trigger_event(util::Timestamp)), v.get(),
 251                                 SLOT(trigger_event(util::Timestamp)));
 252                         connect(v.get(), SIGNAL(sticky_scrolling_changed(bool)), this,
 253                                 SLOT(sticky_scrolling_changed(bool)));
 254                         connect(v.get(), SIGNAL(always_zoom_to_fit_changed(bool)), this,
 255                                 SLOT(always_zoom_to_fit_changed(bool)));
 256
 257                         v->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
 258                         v->enable_coloured_bg(action_view_coloured_bg_->isChecked());
 259                         action_view_show_cursors_->setChecked(v->cursors_shown());
 260                 }
 261         }
 262
 263         return v;
 264 }
 265
 266 void MainWindow::run_stop()
 267 {
 268         switch (session_.get_capture_state()) {
 269         case Session::Stopped:
 270                 session_.start_capture([&](QString message) {
 271                         session_error("Capture failed", message); });
 272                 break;
 273         case Session::AwaitingTrigger:
 274         case Session::Running:
 275                 session_.stop_capture();
 276                 break;
 277         }
 278 }
 279
 280 void MainWindow::select_device(shared_ptr<devices::Device> device)
 281 {
 282         try {
 283                 if (device)
 284                         session_.set_device(device);
 285                 else
 286                         session_.set_default_device();
 287         } catch (const QString &e) {
 288                 QMessageBox msg(this);
 289                 msg.setText(e);
 290                 msg.setInformativeText(tr("Failed to Select Device"));
 291                 msg.setStandardButtons(QMessageBox::Ok);
 292                 msg.setIcon(QMessageBox::Warning);
 293                 msg.exec();
 294         }
 295 }
 296
 297 void MainWindow::export_file(shared_ptr<OutputFormat> format,
 298         bool selection_only)
 299 {
 300         using pv::dialogs::StoreProgress;
 301
 302         // Make sure there's a view selected to pull the data from
 303         shared_ptr<pv::view::View> view = get_active_view();
 304         if (!view) {
 305                 show_session_error(tr("No View Selected"), tr("Please click on the " \
 306                                 "view whose data you want to save and try again."));
 307                 return;
 308         }
 309
 310         // Stop any currently running capture session
 311         session_.stop_capture();
 312
 313         QSettings settings;
 314         const QString dir = settings.value(SettingSaveDirectory).toString();
 315
 316         std::pair<uint64_t, uint64_t> sample_range;
 317
 318         // Selection only? Verify that the cursors are active and fetch their values
 319         if (selection_only) {
 320                 if (!view->cursors()->enabled()) {
 321                         show_session_error(tr("Missing Cursors"), tr("You need to set the " \
 322                                         "cursors before you can save the data enclosed by them " \
 323                                         "to a session file (e.g. using ALT-V - Show Cursors)."));
 324                         return;
 325                 }
 326
 327                 const double samplerate = session_.get_samplerate();
 328
 329                 const pv::util::Timestamp& start_time = view->cursors()->first()->time();
 330                 const pv::util::Timestamp& end_time = view->cursors()->second()->time();
 331
 332                 const uint64_t start_sample =
 333                         std::max((double)0, start_time.convert_to<double>() * samplerate);
 334                 const uint64_t end_sample = end_time.convert_to<double>() * samplerate;
 335
 336                 sample_range = std::make_pair(start_sample, end_sample);
 337         } else {
 338                 sample_range = std::make_pair(0, 0);
 339         }
 340
 341         // Construct the filter
 342         const vector<string> exts = format->extensions();
 343         QString filter = tr("%1 files ").arg(
 344                 QString::fromStdString(format->description()));
 345
 346         if (exts.empty())
 347                 filter += "(*.*)";
 348         else
 349                 filter += QString("(*.%1);;%2 (*.*)").arg(
 350                         QString::fromStdString(join(exts, ", *.")),
 351                         tr("All Files"));
 352
 353         // Show the file dialog
 354         const QString file_name = QFileDialog::getSaveFileName(
 355                 this, tr("Save File"), dir, filter);
 356
 357         if (file_name.isEmpty())
 358                 return;
 359
 360         const QString abs_path = QFileInfo(file_name).absolutePath();
 361         settings.setValue(SettingSaveDirectory, abs_path);
 362
 363         // Show the options dialog
 364         map<string, Glib::VariantBase> options;
 365         if (!format->options().empty()) {
 366                 dialogs::InputOutputOptions dlg(
 367                         tr("Export %1").arg(QString::fromStdString(
 368                                 format->description())),
 369                         format->options(), this);
 370                 if (!dlg.exec())
 371                         return;
 372                 options = dlg.options();
 373         }
 374
 375         StoreProgress *dlg = new StoreProgress(file_name, format, options,
 376                 sample_range, session_, this);
 377         dlg->run();
 378 }
 379
 380 void MainWindow::import_file(shared_ptr<InputFormat> format)
 381 {
 382         assert(format);
 383
 384         QSettings settings;
 385         const QString dir = settings.value(SettingOpenDirectory).toString();
 386
 387         // Construct the filter
 388         const vector<string> exts = format->extensions();
 389         const QString filter = exts.empty() ? "" :
 390                 tr("%1 files (*.%2)").arg(
 391                         QString::fromStdString(format->description()),
 392                         QString::fromStdString(join(exts, ", *.")));
 393
 394         // Show the file dialog
 395         const QString file_name = QFileDialog::getOpenFileName(
 396                 this, tr("Import File"), dir, tr(
 397                         "%1 files (*.*);;All Files (*.*)").arg(
 398                         QString::fromStdString(format->description())));
 399
 400         if (file_name.isEmpty())
 401                 return;
 402
 403         // Show the options dialog
 404         map<string, Glib::VariantBase> options;
 405         if (!format->options().empty()) {
 406                 dialogs::InputOutputOptions dlg(
 407                         tr("Import %1").arg(QString::fromStdString(
 408                                 format->description())),
 409                         format->options(), this);
 410                 if (!dlg.exec())
 411                         return;
 412                 options = dlg.options();
 413         }
 414
 415         load_file(file_name, format, options);
 416
 417         const QString abs_path = QFileInfo(file_name).absolutePath();
 418         settings.setValue(SettingOpenDirectory, abs_path);
 419 }
 420
 421 void MainWindow::setup_ui()
 422 {
 423         setObjectName(QString::fromUtf8("MainWindow"));
 424
 425         // Set the window icon
 426         QIcon icon;
 427         icon.addFile(QString(":/icons/sigrok-logo-notext.png"));
 428         setWindowIcon(icon);
 429
 430         // Setup the menu bar
 431         pv::widgets::HidingMenuBar *const menu_bar =
 432                 new pv::widgets::HidingMenuBar(this);
 433
 434         // File Menu
 435         QMenu *const menu_file = new QMenu;
 436         menu_file->setTitle(tr("&File"));
 437
 438         action_open_->setText(tr("&Open..."));
 439         action_open_->setIcon(QIcon::fromTheme("document-open",
 440                 QIcon(":/icons/document-open.png")));
 441         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
 442         action_open_->setObjectName(QString::fromUtf8("actionOpen"));
 443         menu_file->addAction(action_open_);
 444
 445         action_save_as_->setText(tr("&Save As..."));
 446         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
 447                 QIcon(":/icons/document-save-as.png")));
 448         action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
 449         action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
 450         menu_file->addAction(action_save_as_);
 451
 452         action_save_selection_as_->setText(tr("Save Selected &Range As..."));
 453         action_save_selection_as_->setIcon(QIcon::fromTheme("document-save-as",
 454                 QIcon(":/icons/document-save-as.png")));
 455         action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
 456         action_save_selection_as_->setObjectName(QString::fromUtf8("actionSaveSelectionAs"));
 457         menu_file->addAction(action_save_selection_as_);
 458
 459         menu_file->addSeparator();
 460
 461         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
 462                 device_manager_.context());
 463         menu_file_export->setTitle(tr("&Export"));
 464         connect(menu_file_export,
 465                 SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
 466                 this, SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
 467         menu_file->addAction(menu_file_export->menuAction());
 468
 469         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
 470                 device_manager_.context());
 471         menu_file_import->setTitle(tr("&Import"));
 472         connect(menu_file_import,
 473                 SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
 474                 this, SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
 475         menu_file->addAction(menu_file_import->menuAction());
 476
 477         menu_file->addSeparator();
 478
 479         action_connect_->setText(tr("&Connect to Device..."));
 480         action_connect_->setObjectName(QString::fromUtf8("actionConnect"));
 481         menu_file->addAction(action_connect_);
 482
 483         menu_file->addSeparator();
 484
 485         action_quit_->setText(tr("&Quit"));
 486         action_quit_->setIcon(QIcon::fromTheme("application-exit",
 487                 QIcon(":/icons/application-exit.png")));
 488         action_quit_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 489         action_quit_->setObjectName(QString::fromUtf8("actionQuit"));
 490         menu_file->addAction(action_quit_);
 491
 492         // View Menu
 493         QMenu *menu_view = new QMenu;
 494         menu_view->setTitle(tr("&View"));
 495
 496         action_view_zoom_in_->setText(tr("Zoom &In"));
 497         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
 498                 QIcon(":/icons/zoom-in.png")));
 499         // simply using Qt::Key_Plus shows no + in the menu
 500         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
 501         action_view_zoom_in_->setObjectName(
 502                 QString::fromUtf8("actionViewZoomIn"));
 503         menu_view->addAction(action_view_zoom_in_);
 504
 505         action_view_zoom_out_->setText(tr("Zoom &Out"));
 506         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
 507                 QIcon(":/icons/zoom-out.png")));
 508         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
 509         action_view_zoom_out_->setObjectName(
 510                 QString::fromUtf8("actionViewZoomOut"));
 511         menu_view->addAction(action_view_zoom_out_);
 512
 513         action_view_zoom_fit_->setCheckable(true);
 514         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
 515         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit",
 516                 QIcon(":/icons/zoom-fit.png")));
 517         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
 518         action_view_zoom_fit_->setObjectName(
 519                 QString::fromUtf8("actionViewZoomFit"));
 520         menu_view->addAction(action_view_zoom_fit_);
 521
 522         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
 523         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
 524                 QIcon(":/icons/zoom-original.png")));
 525         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
 526         action_view_zoom_one_to_one_->setObjectName(
 527                 QString::fromUtf8("actionViewZoomOneToOne"));
 528         menu_view->addAction(action_view_zoom_one_to_one_);
 529
 530         menu_view->addSeparator();
 531
 532         action_view_sticky_scrolling_->setCheckable(true);
 533         action_view_sticky_scrolling_->setChecked(true);
 534         action_view_sticky_scrolling_->setShortcut(QKeySequence(Qt::Key_S));
 535         action_view_sticky_scrolling_->setObjectName(
 536                 QString::fromUtf8("actionViewStickyScrolling"));
 537         action_view_sticky_scrolling_->setText(tr("&Sticky Scrolling"));
 538         menu_view->addAction(action_view_sticky_scrolling_);
 539
 540         menu_view->addSeparator();
 541
 542         action_view_coloured_bg_->setCheckable(true);
 543         action_view_coloured_bg_->setChecked(true);
 544         action_view_coloured_bg_->setShortcut(QKeySequence(Qt::Key_B));
 545         action_view_coloured_bg_->setObjectName(
 546                 QString::fromUtf8("actionViewColouredBg"));
 547         action_view_coloured_bg_->setText(tr("Use &coloured backgrounds"));
 548         menu_view->addAction(action_view_coloured_bg_);
 549
 550         menu_view->addSeparator();
 551
 552         action_view_show_cursors_->setCheckable(true);
 553         action_view_show_cursors_->setIcon(QIcon::fromTheme("show-cursors",
 554                 QIcon(":/icons/show-cursors.svg")));
 555         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
 556         action_view_show_cursors_->setObjectName(
 557                 QString::fromUtf8("actionViewShowCursors"));
 558         action_view_show_cursors_->setText(tr("Show &Cursors"));
 559         menu_view->addAction(action_view_show_cursors_);
 560
 561         // Decoders Menu
 562 #ifdef ENABLE_DECODE
 563         QMenu *const menu_decoders = new QMenu;
 564         menu_decoders->setTitle(tr("&Decoders"));
 565
 566         menu_decoders_add_->setTitle(tr("&Add"));
 567         connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
 568                 this, SLOT(add_decoder(srd_decoder*)));
 569
 570         menu_decoders->addMenu(menu_decoders_add_);
 571 #endif
 572
 573         // Help Menu
 574         QMenu *const menu_help = new QMenu;
 575         menu_help->setTitle(tr("&Help"));
 576
 577         action_about_->setObjectName(QString::fromUtf8("actionAbout"));
 578         action_about_->setText(tr("&About..."));
 579         menu_help->addAction(action_about_);
 580
 581         menu_bar->addAction(menu_file->menuAction());
 582         menu_bar->addAction(menu_view->menuAction());
 583 #ifdef ENABLE_DECODE
 584         menu_bar->addAction(menu_decoders->menuAction());
 585 #endif
 586         menu_bar->addAction(menu_help->menuAction());
 587
 588         setMenuBar(menu_bar);
 589         QMetaObject::connectSlotsByName(this);
 590
 591         // Also add all actions to the main window for always-enabled hotkeys
 592         for (QAction* action : menu_bar->actions())
 593                 this->addAction(action);
 594
 595         // Setup the toolbar
 596         main_bar_ = new toolbars::MainBar(session_, *this);
 597
 598         // Set up the initial view
 599         add_view(tr("Untitled"), pv::view::TraceView, session_);
 600
 601         // Populate the device list and select the initially selected device
 602         update_device_list();
 603
 604         addToolBar(main_bar_);
 605
 606         // Set the title
 607         setWindowTitle(tr("PulseView"));
 608
 609         // Setup session_ events
 610         connect(&session_, SIGNAL(capture_state_changed(int)), this,
 611                 SLOT(capture_state_changed(int)));
 612         connect(&session_, SIGNAL(device_selected()), this,
 613                 SLOT(device_selected()));
 614 }
 615
 616 void MainWindow::select_init_device()
 617 {
 618         QSettings settings;
 619         map<string, string> dev_info;
 620         list<string> key_list;
 621         shared_ptr<devices::HardwareDevice> device;
 622
 623         // Re-select last used device if possible but only if it's not demo
 624         settings.beginGroup("Device");
 625         key_list.push_back("vendor");
 626         key_list.push_back("model");
 627         key_list.push_back("version");
 628         key_list.push_back("serial_num");
 629         key_list.push_back("connection_id");
 630
 631         for (string key : key_list) {
 632                 const QString k = QString::fromStdString(key);
 633                 if (!settings.contains(k))
 634                         continue;
 635
 636                 const string value = settings.value(k).toString().toStdString();
 637                 if (!value.empty())
 638                         dev_info.insert(std::make_pair(key, value));
 639         }
 640
 641         if (dev_info.count("model") > 0)
 642                 if (dev_info.at("model").find("Demo device") == std::string::npos)
 643                         device = device_manager_.find_device_from_info(dev_info);
 644
 645         // When we can't find a device similar to the one we used last
 646         // time and there is at least one device aside from demo, use it
 647         if (!device) {
 648                 for (shared_ptr<devices::HardwareDevice> dev : device_manager_.devices()) {
 649                         dev_info = device_manager_.get_device_info(dev);
 650
 651                         if (dev_info.count("model") > 0)
 652                                 if (dev_info.at("model").find("Demo device") == std::string::npos) {
 653                                         device = dev;
 654                                         break;
 655                                 }
 656                 }
 657         }
 658
 659         select_device(device);
 660         update_device_list();
 661
 662         settings.endGroup();
 663 }
 664
 665 void MainWindow::load_init_file(const std::string &file_name,
 666         const std::string &format)
 667 {
 668         shared_ptr<InputFormat> input_format;
 669
 670         if (!format.empty()) {
 671                 const map<string, shared_ptr<InputFormat> > formats =
 672                         device_manager_.context()->input_formats();
 673                 const auto iter = find_if(formats.begin(), formats.end(),
 674                         [&](const pair<string, shared_ptr<InputFormat> > f) {
 675                                 return f.first == format; });
 676                 if (iter == formats.end()) {
 677                         cerr << "Unexpected input format: " << format << endl;
 678                         return;
 679                 }
 680
 681                 input_format = (*iter).second;
 682         }
 683
 684         load_file(QString::fromStdString(file_name), input_format);
 685 }
 686
 687
 688 void MainWindow::save_ui_settings()
 689 {
 690         QSettings settings;
 691
 692         map<string, string> dev_info;
 693         list<string> key_list;
 694
 695         settings.beginGroup("MainWindow");
 696         settings.setValue("state", saveState());
 697         settings.setValue("geometry", saveGeometry());
 698         settings.endGroup();
 699
 700         if (session_.device()) {
 701                 settings.beginGroup("Device");
 702                 key_list.push_back("vendor");
 703                 key_list.push_back("model");
 704                 key_list.push_back("version");
 705                 key_list.push_back("serial_num");
 706                 key_list.push_back("connection_id");
 707
 708                 dev_info = device_manager_.get_device_info(
 709                         session_.device());
 710
 711                 for (string key : key_list) {
 712                         if (dev_info.count(key))
 713                                 settings.setValue(QString::fromUtf8(key.c_str()),
 714                                                 QString::fromUtf8(dev_info.at(key).c_str()));
 715                         else
 716                                 settings.remove(QString::fromUtf8(key.c_str()));
 717                 }
 718
 719                 settings.endGroup();
 720         }
 721 }
 722
 723 void MainWindow::restore_ui_settings()
 724 {
 725         QSettings settings;
 726
 727         settings.beginGroup("MainWindow");
 728
 729         if (settings.contains("geometry")) {
 730                 restoreGeometry(settings.value("geometry").toByteArray());
 731                 restoreState(settings.value("state").toByteArray());
 732         } else
 733                 resize(1000, 720);
 734
 735         settings.endGroup();
 736 }
 737
 738 void MainWindow::session_error(
 739         const QString text, const QString info_text)
 740 {
 741         QMetaObject::invokeMethod(this, "show_session_error",
 742                 Qt::QueuedConnection, Q_ARG(QString, text),
 743                 Q_ARG(QString, info_text));
 744 }
 745
 746 void MainWindow::update_device_list()
 747 {
 748         main_bar_->update_device_list();
 749 }
 750
 751 void MainWindow::load_file(QString file_name,
 752         std::shared_ptr<sigrok::InputFormat> format,
 753         const std::map<std::string, Glib::VariantBase> &options)
 754 {
 755         const QString errorMessage(
 756                 QString("Failed to load file %1").arg(file_name));
 757
 758         try {
 759                 if (format)
 760                         session_.set_device(shared_ptr<devices::Device>(
 761                                 new devices::InputFile(
 762                                         device_manager_.context(),
 763                                         file_name.toStdString(),
 764                                         format, options)));
 765                 else
 766                         session_.set_device(shared_ptr<devices::Device>(
 767                                 new devices::SessionFile(
 768                                         device_manager_.context(),
 769                                         file_name.toStdString())));
 770         } catch (Error e) {
 771                 show_session_error(tr("Failed to load ") + file_name, e.what());
 772                 session_.set_default_device();
 773                 update_device_list();
 774                 return;
 775         }
 776
 777         update_device_list();
 778
 779         session_.start_capture([&, errorMessage](QString infoMessage) {
 780                 session_error(errorMessage, infoMessage); });
 781 }
 782
 783 void MainWindow::closeEvent(QCloseEvent *event)
 784 {
 785         save_ui_settings();
 786         event->accept();
 787 }
 788
 789 void MainWindow::keyReleaseEvent(QKeyEvent *event)
 790 {
 791         if (event->key() == Qt::Key_Alt) {
 792                 menuBar()->setHidden(!menuBar()->isHidden());
 793                 menuBar()->setFocus();
 794         }
 795         QMainWindow::keyReleaseEvent(event);
 796 }
 797
 798 void MainWindow::show_session_error(
 799         const QString text, const QString info_text)
 800 {
 801         QMessageBox msg(this);
 802         msg.setText(text);
 803         msg.setInformativeText(info_text);
 804         msg.setStandardButtons(QMessageBox::Ok);
 805         msg.setIcon(QMessageBox::Warning);
 806         msg.exec();
 807 }
 808
 809 void MainWindow::on_actionOpen_triggered()
 810 {
 811         QSettings settings;
 812         const QString dir = settings.value(SettingOpenDirectory).toString();
 813
 814         // Show the dialog
 815         const QString file_name = QFileDialog::getOpenFileName(
 816                 this, tr("Open File"), dir, tr(
 817                         "Sigrok Sessions (*.sr);;"
 818                         "All Files (*.*)"));
 819
 820         if (!file_name.isEmpty()) {
 821                 load_file(file_name);
 822
 823                 const QString abs_path = QFileInfo(file_name).absolutePath();
 824                 settings.setValue(SettingOpenDirectory, abs_path);
 825         }
 826 }
 827
 828 void MainWindow::on_actionSaveAs_triggered()
 829 {
 830         export_file(device_manager_.context()->output_formats()["srzip"]);
 831 }
 832
 833 void MainWindow::on_actionSaveSelectionAs_triggered()
 834 {
 835         export_file(device_manager_.context()->output_formats()["srzip"], true);
 836 }
 837
 838 void MainWindow::on_actionConnect_triggered()
 839 {
 840         // Stop any currently running capture session
 841         session_.stop_capture();
 842
 843         dialogs::Connect dlg(this, device_manager_);
 844
 845         // If the user selected a device, select it in the device list. Select the
 846         // current device otherwise.
 847         if (dlg.exec())
 848                 select_device(dlg.get_selected_device());
 849
 850         update_device_list();
 851 }
 852
 853 void MainWindow::on_actionQuit_triggered()
 854 {
 855         close();
 856 }
 857
 858 void MainWindow::on_actionViewZoomIn_triggered()
 859 {
 860         shared_ptr<pv::view::View> view = get_active_view();
 861         if (view)
 862                 view->zoom(1);
 863 }
 864
 865 void MainWindow::on_actionViewZoomOut_triggered()
 866 {
 867         shared_ptr<pv::view::View> view = get_active_view();
 868         if (view)
 869                 view->zoom(-1);
 870 }
 871
 872 void MainWindow::on_actionViewZoomFit_triggered()
 873 {
 874         shared_ptr<pv::view::View> view = get_active_view();
 875         if (view)
 876                 view->zoom_fit(action_view_zoom_fit_->isChecked());
 877 }
 878
 879 void MainWindow::on_actionViewZoomOneToOne_triggered()
 880 {
 881         shared_ptr<pv::view::View> view = get_active_view();
 882         if (view)
 883                 view->zoom_one_to_one();
 884 }
 885
 886 void MainWindow::on_actionViewStickyScrolling_triggered()
 887 {
 888         shared_ptr<pv::view::View> view = get_active_view();
 889         if (view)
 890                 view->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
 891 }
 892
 893 void MainWindow::on_actionViewColouredBg_triggered()
 894 {
 895         shared_ptr<pv::view::View> view = get_active_view();
 896         if (view)
 897                 view->enable_coloured_bg(action_view_coloured_bg_->isChecked());
 898 }
 899
 900 void MainWindow::on_actionViewShowCursors_triggered()
 901 {
 902         shared_ptr<pv::view::View> view = get_active_view();
 903         if (!view)
 904                 return;
 905
 906         const bool show = !view->cursors_shown();
 907         if (show)
 908                 view->centre_cursors();
 909
 910         view->show_cursors(show);
 911 }
 912
 913 void MainWindow::on_actionAbout_triggered()
 914 {
 915         dialogs::About dlg(device_manager_.context(), this);
 916         dlg.exec();
 917 }
 918
 919 void MainWindow::sticky_scrolling_changed(bool state)
 920 {
 921         action_view_sticky_scrolling_->setChecked(state);
 922 }
 923
 924 void MainWindow::always_zoom_to_fit_changed(bool state)
 925 {
 926         action_view_zoom_fit_->setChecked(state);
 927 }
 928
 929 void MainWindow::add_decoder(srd_decoder *decoder)
 930 {
 931 #ifdef ENABLE_DECODE
 932         assert(decoder);
 933         session_.add_decoder(decoder);
 934 #else
 935         (void)decoder;
 936 #endif
 937 }
 938
 939 void MainWindow::capture_state_changed(int state)
 940 {
 941         main_bar_->set_capture_state((pv::Session::capture_state)state);
 942 }
 943
 944 void MainWindow::device_selected()
 945 {
 946         // Set the title to include the device/file name
 947         const shared_ptr<devices::Device> device = session_.device();
 948
 949         if (!device) {
 950                 main_bar_->reset_device_selector();
 951                 return;
 952         }
 953
 954         const string display_name = device->display_name(device_manager_);
 955         setWindowTitle(tr("%1 - PulseView").arg(display_name.c_str()));
 956 }
 957
 958 } // namespace pv