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 "devices/hardwaredevice.hpp"
  49 #include "devices/inputfile.hpp"
  50 #include "devices/sessionfile.hpp"
  51 #include "dialogs/about.hpp"
  52 #include "dialogs/connect.hpp"
  53 #include "dialogs/inputoutputoptions.hpp"
  54 #include "dialogs/storeprogress.hpp"
  55 #include "toolbars/mainbar.hpp"
  56 #include "view/logicsignal.hpp"
  57 #include "view/view.hpp"
  58 #include "widgets/exportmenu.hpp"
  59 #include "widgets/importmenu.hpp"
  60 #ifdef ENABLE_DECODE
  61 #include "widgets/decodermenu.hpp"
  62 #endif
  63 #include "widgets/hidingmenubar.hpp"
  64
  65 #include <inttypes.h>
  66 #include <stdint.h>
  67 #include <stdarg.h>
  68 #include <glib.h>
  69 #include <libsigrokcxx/libsigrokcxx.hpp>
  70
  71 using std::list;
  72 using std::map;
  73 using std::shared_ptr;
  74 using std::string;
  75 using std::vector;
  76
  77 using boost::algorithm::join;
  78
  79 using sigrok::Error;
  80 using sigrok::OutputFormat;
  81 using sigrok::InputFormat;
  82
  83 namespace pv {
  84
  85 namespace view {
  86 class ViewItem;
  87 }
  88
  89 const char *MainWindow::SettingOpenDirectory = "MainWindow/OpenDirectory";
  90 const char *MainWindow::SettingSaveDirectory = "MainWindow/SaveDirectory";
  91
  92 MainWindow::MainWindow(DeviceManager &device_manager,
  93         const char *open_file_name,
  94         QWidget *parent) :
  95         QMainWindow(parent),
  96         device_manager_(device_manager),
  97         session_(device_manager),
  98         action_open_(new QAction(this)),
  99         action_save_as_(new QAction(this)),
 100         action_connect_(new QAction(this)),
 101         action_quit_(new QAction(this)),
 102         action_view_zoom_in_(new QAction(this)),
 103         action_view_zoom_out_(new QAction(this)),
 104         action_view_zoom_fit_(new QAction(this)),
 105         action_view_zoom_one_to_one_(new QAction(this)),
 106         action_view_show_cursors_(new QAction(this)),
 107         action_about_(new QAction(this))
 108 #ifdef ENABLE_DECODE
 109         , menu_decoders_add_(new pv::widgets::DecoderMenu(this, true))
 110 #endif
 111 {
 112         setup_ui();
 113         restore_ui_settings();
 114         if (open_file_name) {
 115                 const QString s(QString::fromUtf8(open_file_name));
 116                 QMetaObject::invokeMethod(this, "load_file",
 117                         Qt::QueuedConnection,
 118                         Q_ARG(QString, s));
 119         }
 120 }
 121
 122 QAction* MainWindow::action_open() const
 123 {
 124         return action_open_;
 125 }
 126
 127 QAction* MainWindow::action_save_as() const
 128 {
 129         return action_save_as_;
 130 }
 131
 132 QAction* MainWindow::action_connect() const
 133 {
 134         return action_connect_;
 135 }
 136
 137 QAction* MainWindow::action_quit() const
 138 {
 139         return action_quit_;
 140 }
 141
 142 QAction* MainWindow::action_view_zoom_in() const
 143 {
 144         return action_view_zoom_in_;
 145 }
 146
 147 QAction* MainWindow::action_view_zoom_out() const
 148 {
 149         return action_view_zoom_out_;
 150 }
 151
 152 QAction* MainWindow::action_view_zoom_fit() const
 153 {
 154         return action_view_zoom_fit_;
 155 }
 156
 157 QAction* MainWindow::action_view_zoom_one_to_one() const
 158 {
 159         return action_view_zoom_one_to_one_;
 160 }
 161
 162 QAction* MainWindow::action_view_show_cursors() const
 163 {
 164         return action_view_show_cursors_;
 165 }
 166
 167 QAction* MainWindow::action_about() const
 168 {
 169         return action_about_;
 170 }
 171
 172 #ifdef ENABLE_DECODE
 173 QMenu* MainWindow::menu_decoder_add() const
 174 {
 175         return menu_decoders_add_;
 176 }
 177 #endif
 178
 179 void MainWindow::run_stop()
 180 {
 181         switch(session_.get_capture_state()) {
 182         case Session::Stopped:
 183                 session_.start_capture([&](QString message) {
 184                         session_error("Capture failed", message); });
 185                 break;
 186
 187         case Session::AwaitingTrigger:
 188         case Session::Running:
 189                 session_.stop_capture();
 190                 break;
 191         }
 192 }
 193
 194 void MainWindow::select_device(shared_ptr<devices::Device> device)
 195 {
 196         try {
 197                 session_.set_device(device);
 198         } catch(const QString &e) {
 199                 QMessageBox msg(this);
 200                 msg.setText(e);
 201                 msg.setInformativeText(tr("Failed to Select Device"));
 202                 msg.setStandardButtons(QMessageBox::Ok);
 203                 msg.setIcon(QMessageBox::Warning);
 204                 msg.exec();
 205         }
 206 }
 207
 208 void MainWindow::export_file(shared_ptr<OutputFormat> format)
 209 {
 210         using pv::dialogs::StoreProgress;
 211
 212         // Stop any currently running capture session
 213         session_.stop_capture();
 214
 215         QSettings settings;
 216         const QString dir = settings.value(SettingSaveDirectory).toString();
 217
 218         // Construct the filter
 219         const vector<string> exts = format->extensions();
 220         QString filter = tr("%1 files ").arg(
 221                 QString::fromStdString(format->description()));
 222
 223         if (exts.empty())
 224                 filter += "(*.*)";
 225         else
 226                 filter += QString("(*.%1);;%2 (*.*)").arg(
 227                         QString::fromStdString(join(exts, ", *."))).arg(
 228                         tr("All Files"));
 229
 230         // Show the file dialog
 231         const QString file_name = QFileDialog::getSaveFileName(
 232                 this, tr("Save File"), dir, filter);
 233
 234         if (file_name.isEmpty())
 235                 return;
 236
 237         const QString abs_path = QFileInfo(file_name).absolutePath();
 238         settings.setValue(SettingSaveDirectory, abs_path);
 239
 240         // Show the options dialog
 241         map<string, Glib::VariantBase> options;
 242         if (!format->options().empty()) {
 243                 dialogs::InputOutputOptions dlg(
 244                         tr("Export %1").arg(QString::fromStdString(
 245                                 format->description())),
 246                         format->options(), this);
 247                 if (!dlg.exec())
 248                         return;
 249                 options = dlg.options();
 250         }
 251
 252         StoreProgress *dlg = new StoreProgress(file_name, format, options,
 253                 session_, this);
 254         dlg->run();
 255 }
 256
 257 void MainWindow::import_file(shared_ptr<InputFormat> format)
 258 {
 259         assert(format);
 260
 261         QSettings settings;
 262         const QString dir = settings.value(SettingOpenDirectory).toString();
 263
 264         // Construct the filter
 265         const vector<string> exts = format->extensions();
 266         const QString filter = exts.empty() ? "" :
 267                 tr("%1 files (*.%2)").arg(
 268                         QString::fromStdString(format->description())).arg(
 269                         QString::fromStdString(join(exts, ", *.")));
 270
 271         // Show the file dialog
 272         const QString file_name = QFileDialog::getOpenFileName(
 273                 this, tr("Import File"), dir, tr(
 274                         "%1 files (*.*);;All Files (*.*)").arg(
 275                         QString::fromStdString(format->description())));
 276
 277         if (!file_name.isEmpty()) {
 278                 load_file(file_name, format);
 279
 280                 const QString abs_path = QFileInfo(file_name).absolutePath();
 281                 settings.setValue(SettingOpenDirectory, abs_path);
 282         }
 283 }
 284
 285 void MainWindow::setup_ui()
 286 {
 287         setObjectName(QString::fromUtf8("MainWindow"));
 288
 289         // Set the window icon
 290         QIcon icon;
 291         icon.addFile(QString(":/icons/sigrok-logo-notext.svg"));
 292         setWindowIcon(icon);
 293
 294         // Setup the central widget
 295         central_widget_ = new QWidget(this);
 296         vertical_layout_ = new QVBoxLayout(central_widget_);
 297         vertical_layout_->setSpacing(6);
 298         vertical_layout_->setContentsMargins(0, 0, 0, 0);
 299         setCentralWidget(central_widget_);
 300
 301         view_ = new pv::view::View(session_, this);
 302
 303         vertical_layout_->addWidget(view_);
 304
 305         // Setup the menu bar
 306         pv::widgets::HidingMenuBar *const menu_bar =
 307                 new pv::widgets::HidingMenuBar(this);
 308
 309         // File Menu
 310         QMenu *const menu_file = new QMenu;
 311         menu_file->setTitle(tr("&File"));
 312
 313         action_open_->setText(tr("&Open..."));
 314         action_open_->setIcon(QIcon::fromTheme("document-open",
 315                 QIcon(":/icons/document-open.png")));
 316         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
 317         action_open_->setObjectName(QString::fromUtf8("actionOpen"));
 318         menu_file->addAction(action_open_);
 319
 320         action_save_as_->setText(tr("&Save As..."));
 321         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
 322                 QIcon(":/icons/document-save-as.png")));
 323         action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
 324         action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
 325         menu_file->addAction(action_save_as_);
 326
 327         menu_file->addSeparator();
 328
 329         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
 330                 device_manager_.context());
 331         menu_file_export->setTitle(tr("&Export"));
 332         connect(menu_file_export,
 333                 SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
 334                 this, SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
 335         menu_file->addAction(menu_file_export->menuAction());
 336
 337         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
 338                 device_manager_.context());
 339         menu_file_import->setTitle(tr("&Import"));
 340         connect(menu_file_import,
 341                 SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
 342                 this, SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
 343         menu_file->addAction(menu_file_import->menuAction());
 344
 345         menu_file->addSeparator();
 346
 347         action_connect_->setText(tr("&Connect to Device..."));
 348         action_connect_->setObjectName(QString::fromUtf8("actionConnect"));
 349         menu_file->addAction(action_connect_);
 350
 351         menu_file->addSeparator();
 352
 353         action_quit_->setText(tr("&Quit"));
 354         action_quit_->setIcon(QIcon::fromTheme("application-exit",
 355                 QIcon(":/icons/application-exit.png")));
 356         action_quit_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 357         action_quit_->setObjectName(QString::fromUtf8("actionQuit"));
 358         menu_file->addAction(action_quit_);
 359
 360         // View Menu
 361         QMenu *menu_view = new QMenu;
 362         menu_view->setTitle(tr("&View"));
 363
 364         action_view_zoom_in_->setText(tr("Zoom &In"));
 365         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
 366                 QIcon(":/icons/zoom-in.png")));
 367         // simply using Qt::Key_Plus shows no + in the menu
 368         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
 369         action_view_zoom_in_->setObjectName(
 370                 QString::fromUtf8("actionViewZoomIn"));
 371         menu_view->addAction(action_view_zoom_in_);
 372
 373         action_view_zoom_out_->setText(tr("Zoom &Out"));
 374         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
 375                 QIcon(":/icons/zoom-out.png")));
 376         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
 377         action_view_zoom_out_->setObjectName(
 378                 QString::fromUtf8("actionViewZoomOut"));
 379         menu_view->addAction(action_view_zoom_out_);
 380
 381         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
 382         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit",
 383                 QIcon(":/icons/zoom-fit.png")));
 384         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
 385         action_view_zoom_fit_->setObjectName(
 386                 QString::fromUtf8("actionViewZoomFit"));
 387         menu_view->addAction(action_view_zoom_fit_);
 388
 389         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
 390         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
 391                 QIcon(":/icons/zoom-original.png")));
 392         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
 393         action_view_zoom_one_to_one_->setObjectName(
 394                 QString::fromUtf8("actionViewZoomOneToOne"));
 395         menu_view->addAction(action_view_zoom_one_to_one_);
 396
 397         menu_view->addSeparator();
 398
 399         action_view_show_cursors_->setCheckable(true);
 400         action_view_show_cursors_->setChecked(view_->cursors_shown());
 401         action_view_show_cursors_->setIcon(QIcon::fromTheme("show-cursors",
 402                 QIcon(":/icons/show-cursors.svg")));
 403         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
 404         action_view_show_cursors_->setObjectName(
 405                 QString::fromUtf8("actionViewShowCursors"));
 406         action_view_show_cursors_->setText(tr("Show &Cursors"));
 407         menu_view->addAction(action_view_show_cursors_);
 408
 409         // Decoders Menu
 410 #ifdef ENABLE_DECODE
 411         QMenu *const menu_decoders = new QMenu;
 412         menu_decoders->setTitle(tr("&Decoders"));
 413
 414         menu_decoders_add_->setTitle(tr("&Add"));
 415         connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
 416                 this, SLOT(add_decoder(srd_decoder*)));
 417
 418         menu_decoders->addMenu(menu_decoders_add_);
 419 #endif
 420
 421         // Help Menu
 422         QMenu *const menu_help = new QMenu;
 423         menu_help->setTitle(tr("&Help"));
 424
 425         action_about_->setObjectName(QString::fromUtf8("actionAbout"));
 426         action_about_->setText(tr("&About..."));
 427         menu_help->addAction(action_about_);
 428
 429         menu_bar->addAction(menu_file->menuAction());
 430         menu_bar->addAction(menu_view->menuAction());
 431 #ifdef ENABLE_DECODE
 432         menu_bar->addAction(menu_decoders->menuAction());
 433 #endif
 434         menu_bar->addAction(menu_help->menuAction());
 435
 436         setMenuBar(menu_bar);
 437         QMetaObject::connectSlotsByName(this);
 438
 439         // Setup the toolbar
 440         main_bar_ = new toolbars::MainBar(session_, *this);
 441
 442         // Populate the device list and select the initially selected device
 443         update_device_list();
 444
 445         addToolBar(main_bar_);
 446
 447         // Set the title
 448         setWindowTitle(tr("PulseView"));
 449
 450         // Setup session_ events
 451         connect(&session_, SIGNAL(capture_state_changed(int)), this,
 452                 SLOT(capture_state_changed(int)));
 453         connect(&session_, SIGNAL(device_selected()), this,
 454                 SLOT(device_selected()));
 455 }
 456
 457 void MainWindow::save_ui_settings()
 458 {
 459         QSettings settings;
 460
 461         map<string, string> dev_info;
 462         list<string> key_list;
 463
 464         settings.beginGroup("MainWindow");
 465         settings.setValue("state", saveState());
 466         settings.setValue("geometry", saveGeometry());
 467         settings.endGroup();
 468
 469         if (session_.device()) {
 470                 settings.beginGroup("Device");
 471                 key_list.push_back("vendor");
 472                 key_list.push_back("model");
 473                 key_list.push_back("version");
 474                 key_list.push_back("serial_num");
 475                 key_list.push_back("connection_id");
 476
 477                 dev_info = device_manager_.get_device_info(
 478                         session_.device());
 479
 480                 for (string key : key_list) {
 481
 482                         if (dev_info.count(key))
 483                                 settings.setValue(QString::fromUtf8(key.c_str()),
 484                                                 QString::fromUtf8(dev_info.at(key).c_str()));
 485                         else
 486                                 settings.remove(QString::fromUtf8(key.c_str()));
 487                 }
 488
 489                 settings.endGroup();
 490         }
 491 }
 492
 493 void MainWindow::restore_ui_settings()
 494 {
 495         QSettings settings;
 496
 497         map<string, string> dev_info;
 498         list<string> key_list;
 499         string value;
 500
 501         settings.beginGroup("MainWindow");
 502
 503         if (settings.contains("geometry")) {
 504                 restoreGeometry(settings.value("geometry").toByteArray());
 505                 restoreState(settings.value("state").toByteArray());
 506         } else
 507                 resize(1000, 720);
 508
 509         settings.endGroup();
 510
 511         // Re-select last used device if possible.
 512         settings.beginGroup("Device");
 513         key_list.push_back("vendor");
 514         key_list.push_back("model");
 515         key_list.push_back("version");
 516         key_list.push_back("serial_num");
 517         key_list.push_back("connection_id");
 518
 519         for (string key : key_list) {
 520                 if (!settings.contains(QString::fromUtf8(key.c_str())))
 521                         continue;
 522
 523                 value = settings.value(QString::fromUtf8(key.c_str())).toString().toStdString();
 524
 525                 if (value.size() > 0)
 526                         dev_info.insert(std::make_pair(key, value));
 527         }
 528
 529         const shared_ptr<devices::HardwareDevice> device =
 530                 device_manager_.find_device_from_info(dev_info);
 531         if (device) {
 532                 select_device(device);
 533                 update_device_list();
 534         }
 535
 536         settings.endGroup();
 537 }
 538
 539 void MainWindow::session_error(
 540         const QString text, const QString info_text)
 541 {
 542         QMetaObject::invokeMethod(this, "show_session_error",
 543                 Qt::QueuedConnection, Q_ARG(QString, text),
 544                 Q_ARG(QString, info_text));
 545 }
 546
 547 void MainWindow::update_device_list()
 548 {
 549         main_bar_->update_device_list();
 550 }
 551
 552 void MainWindow::closeEvent(QCloseEvent *event)
 553 {
 554         save_ui_settings();
 555         event->accept();
 556 }
 557
 558 void MainWindow::keyReleaseEvent(QKeyEvent *event)
 559 {
 560         if (event->key() == Qt::Key_Alt) {
 561                 menuBar()->setHidden(!menuBar()->isHidden());
 562                 menuBar()->setFocus();
 563         }
 564         QMainWindow::keyReleaseEvent(event);
 565 }
 566
 567 void MainWindow::load_file(QString file_name,
 568         std::shared_ptr<sigrok::InputFormat> format,
 569         const std::map<std::string, Glib::VariantBase> &options)
 570 {
 571         const QString errorMessage(
 572                 QString("Failed to load file %1").arg(file_name));
 573         const QString infoMessage;
 574
 575         try {
 576                 if (format)
 577                         session_.set_device(shared_ptr<devices::Device>(
 578                                 new devices::InputFile(
 579                                         device_manager_.context(),
 580                                         file_name.toStdString(),
 581                                         format, options)));
 582                 else
 583                         session_.set_device(shared_ptr<devices::Device>(
 584                                 new devices::SessionFile(
 585                                         device_manager_.context(),
 586                                         file_name.toStdString())));
 587         } catch(Error e) {
 588                 show_session_error(tr("Failed to load ") + file_name, e.what());
 589                 session_.set_default_device();
 590                 update_device_list();
 591                 return;
 592         }
 593
 594         update_device_list();
 595
 596         session_.start_capture([&, errorMessage, infoMessage](QString) {
 597                 session_error(errorMessage, infoMessage); });
 598 }
 599
 600 void MainWindow::show_session_error(
 601         const QString text, const QString info_text)
 602 {
 603         QMessageBox msg(this);
 604         msg.setText(text);
 605         msg.setInformativeText(info_text);
 606         msg.setStandardButtons(QMessageBox::Ok);
 607         msg.setIcon(QMessageBox::Warning);
 608         msg.exec();
 609 }
 610
 611 void MainWindow::on_actionOpen_triggered()
 612 {
 613         QSettings settings;
 614         const QString dir = settings.value(SettingOpenDirectory).toString();
 615
 616         // Show the dialog
 617         const QString file_name = QFileDialog::getOpenFileName(
 618                 this, tr("Open File"), dir, tr(
 619                         "Sigrok Sessions (*.sr);;"
 620                         "All Files (*.*)"));
 621
 622         if (!file_name.isEmpty()) {
 623                 load_file(file_name);
 624
 625                 const QString abs_path = QFileInfo(file_name).absolutePath();
 626                 settings.setValue(SettingOpenDirectory, abs_path);
 627         }
 628 }
 629
 630 void MainWindow::on_actionSaveAs_triggered()
 631 {
 632         export_file(device_manager_.context()->output_formats()["srzip"]);
 633 }
 634
 635 void MainWindow::on_actionConnect_triggered()
 636 {
 637         // Stop any currently running capture session
 638         session_.stop_capture();
 639
 640         dialogs::Connect dlg(this, device_manager_);
 641
 642         // If the user selected a device, select it in the device list. Select the
 643         // current device otherwise.
 644         if (dlg.exec())
 645                 select_device(dlg.get_selected_device());
 646
 647         update_device_list();
 648 }
 649
 650 void MainWindow::on_actionQuit_triggered()
 651 {
 652         close();
 653 }
 654
 655 void MainWindow::on_actionViewZoomIn_triggered()
 656 {
 657         view_->zoom(1);
 658 }
 659
 660 void MainWindow::on_actionViewZoomOut_triggered()
 661 {
 662         view_->zoom(-1);
 663 }
 664
 665 void MainWindow::on_actionViewZoomFit_triggered()
 666 {
 667         view_->zoom_fit();
 668 }
 669
 670 void MainWindow::on_actionViewZoomOneToOne_triggered()
 671 {
 672         view_->zoom_one_to_one();
 673 }
 674
 675 void MainWindow::on_actionViewShowCursors_triggered()
 676 {
 677         assert(view_);
 678
 679         const bool show = !view_->cursors_shown();
 680         if(show)
 681                 view_->centre_cursors();
 682
 683         view_->show_cursors(show);
 684 }
 685
 686 void MainWindow::on_actionAbout_triggered()
 687 {
 688         dialogs::About dlg(device_manager_.context(), this);
 689         dlg.exec();
 690 }
 691
 692 void MainWindow::add_decoder(srd_decoder *decoder)
 693 {
 694 #ifdef ENABLE_DECODE
 695         assert(decoder);
 696         session_.add_decoder(decoder);
 697 #else
 698         (void)decoder;
 699 #endif
 700 }
 701
 702 void MainWindow::capture_state_changed(int state)
 703 {
 704         main_bar_->set_capture_state((pv::Session::capture_state)state);
 705 }
 706
 707 void MainWindow::device_selected()
 708 {
 709         // Set the title to include the device/file name
 710         const shared_ptr<devices::Device> device = session_.device();
 711         if (!device)
 712                 return;
 713
 714         const string display_name = device->display_name(device_manager_);
 715         setWindowTitle(tr("%1 - PulseView").arg(display_name.c_str()));
 716 }
 717
 718 } // namespace pv