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                 if (device)
 198                         session_.set_device(device);
 199                 else
 200                         session_.set_default_device();
 201         } catch(const QString &e) {
 202                 QMessageBox msg(this);
 203                 msg.setText(e);
 204                 msg.setInformativeText(tr("Failed to Select Device"));
 205                 msg.setStandardButtons(QMessageBox::Ok);
 206                 msg.setIcon(QMessageBox::Warning);
 207                 msg.exec();
 208         }
 209 }
 210
 211 void MainWindow::export_file(shared_ptr<OutputFormat> format)
 212 {
 213         using pv::dialogs::StoreProgress;
 214
 215         // Stop any currently running capture session
 216         session_.stop_capture();
 217
 218         QSettings settings;
 219         const QString dir = settings.value(SettingSaveDirectory).toString();
 220
 221         // Construct the filter
 222         const vector<string> exts = format->extensions();
 223         QString filter = tr("%1 files ").arg(
 224                 QString::fromStdString(format->description()));
 225
 226         if (exts.empty())
 227                 filter += "(*.*)";
 228         else
 229                 filter += QString("(*.%1);;%2 (*.*)").arg(
 230                         QString::fromStdString(join(exts, ", *."))).arg(
 231                         tr("All Files"));
 232
 233         // Show the file dialog
 234         const QString file_name = QFileDialog::getSaveFileName(
 235                 this, tr("Save File"), dir, filter);
 236
 237         if (file_name.isEmpty())
 238                 return;
 239
 240         const QString abs_path = QFileInfo(file_name).absolutePath();
 241         settings.setValue(SettingSaveDirectory, abs_path);
 242
 243         // Show the options dialog
 244         map<string, Glib::VariantBase> options;
 245         if (!format->options().empty()) {
 246                 dialogs::InputOutputOptions dlg(
 247                         tr("Export %1").arg(QString::fromStdString(
 248                                 format->description())),
 249                         format->options(), this);
 250                 if (!dlg.exec())
 251                         return;
 252                 options = dlg.options();
 253         }
 254
 255         StoreProgress *dlg = new StoreProgress(file_name, format, options,
 256                 session_, this);
 257         dlg->run();
 258 }
 259
 260 void MainWindow::import_file(shared_ptr<InputFormat> format)
 261 {
 262         assert(format);
 263
 264         QSettings settings;
 265         const QString dir = settings.value(SettingOpenDirectory).toString();
 266
 267         // Construct the filter
 268         const vector<string> exts = format->extensions();
 269         const QString filter = exts.empty() ? "" :
 270                 tr("%1 files (*.%2)").arg(
 271                         QString::fromStdString(format->description())).arg(
 272                         QString::fromStdString(join(exts, ", *.")));
 273
 274         // Show the file dialog
 275         const QString file_name = QFileDialog::getOpenFileName(
 276                 this, tr("Import File"), dir, tr(
 277                         "%1 files (*.*);;All Files (*.*)").arg(
 278                         QString::fromStdString(format->description())));
 279
 280         if (file_name.isEmpty())
 281                 return;
 282
 283         // Show the options dialog
 284         map<string, Glib::VariantBase> options;
 285         if (!format->options().empty()) {
 286                 dialogs::InputOutputOptions dlg(
 287                         tr("Import %1").arg(QString::fromStdString(
 288                                 format->description())),
 289                         format->options(), this);
 290                 if (!dlg.exec())
 291                         return;
 292                 options = dlg.options();
 293         }
 294
 295         load_file(file_name, format, options);
 296
 297         const QString abs_path = QFileInfo(file_name).absolutePath();
 298         settings.setValue(SettingOpenDirectory, abs_path);
 299 }
 300
 301 void MainWindow::setup_ui()
 302 {
 303         setObjectName(QString::fromUtf8("MainWindow"));
 304
 305         // Set the window icon
 306         QIcon icon;
 307         icon.addFile(QString(":/icons/sigrok-logo-notext.svg"));
 308         setWindowIcon(icon);
 309
 310         // Setup the central widget
 311         central_widget_ = new QWidget(this);
 312         vertical_layout_ = new QVBoxLayout(central_widget_);
 313         vertical_layout_->setSpacing(6);
 314         vertical_layout_->setContentsMargins(0, 0, 0, 0);
 315         setCentralWidget(central_widget_);
 316
 317         view_ = new pv::view::View(session_, this);
 318
 319         vertical_layout_->addWidget(view_);
 320
 321         // Setup the menu bar
 322         pv::widgets::HidingMenuBar *const menu_bar =
 323                 new pv::widgets::HidingMenuBar(this);
 324
 325         // File Menu
 326         QMenu *const menu_file = new QMenu;
 327         menu_file->setTitle(tr("&File"));
 328
 329         action_open_->setText(tr("&Open..."));
 330         action_open_->setIcon(QIcon::fromTheme("document-open",
 331                 QIcon(":/icons/document-open.png")));
 332         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
 333         action_open_->setObjectName(QString::fromUtf8("actionOpen"));
 334         menu_file->addAction(action_open_);
 335
 336         action_save_as_->setText(tr("&Save As..."));
 337         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
 338                 QIcon(":/icons/document-save-as.png")));
 339         action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
 340         action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
 341         menu_file->addAction(action_save_as_);
 342
 343         menu_file->addSeparator();
 344
 345         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
 346                 device_manager_.context());
 347         menu_file_export->setTitle(tr("&Export"));
 348         connect(menu_file_export,
 349                 SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
 350                 this, SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
 351         menu_file->addAction(menu_file_export->menuAction());
 352
 353         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
 354                 device_manager_.context());
 355         menu_file_import->setTitle(tr("&Import"));
 356         connect(menu_file_import,
 357                 SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
 358                 this, SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
 359         menu_file->addAction(menu_file_import->menuAction());
 360
 361         menu_file->addSeparator();
 362
 363         action_connect_->setText(tr("&Connect to Device..."));
 364         action_connect_->setObjectName(QString::fromUtf8("actionConnect"));
 365         menu_file->addAction(action_connect_);
 366
 367         menu_file->addSeparator();
 368
 369         action_quit_->setText(tr("&Quit"));
 370         action_quit_->setIcon(QIcon::fromTheme("application-exit",
 371                 QIcon(":/icons/application-exit.png")));
 372         action_quit_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 373         action_quit_->setObjectName(QString::fromUtf8("actionQuit"));
 374         menu_file->addAction(action_quit_);
 375
 376         // View Menu
 377         QMenu *menu_view = new QMenu;
 378         menu_view->setTitle(tr("&View"));
 379
 380         action_view_zoom_in_->setText(tr("Zoom &In"));
 381         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
 382                 QIcon(":/icons/zoom-in.png")));
 383         // simply using Qt::Key_Plus shows no + in the menu
 384         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
 385         action_view_zoom_in_->setObjectName(
 386                 QString::fromUtf8("actionViewZoomIn"));
 387         menu_view->addAction(action_view_zoom_in_);
 388
 389         action_view_zoom_out_->setText(tr("Zoom &Out"));
 390         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
 391                 QIcon(":/icons/zoom-out.png")));
 392         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
 393         action_view_zoom_out_->setObjectName(
 394                 QString::fromUtf8("actionViewZoomOut"));
 395         menu_view->addAction(action_view_zoom_out_);
 396
 397         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
 398         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit",
 399                 QIcon(":/icons/zoom-fit.png")));
 400         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
 401         action_view_zoom_fit_->setObjectName(
 402                 QString::fromUtf8("actionViewZoomFit"));
 403         menu_view->addAction(action_view_zoom_fit_);
 404
 405         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
 406         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
 407                 QIcon(":/icons/zoom-original.png")));
 408         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
 409         action_view_zoom_one_to_one_->setObjectName(
 410                 QString::fromUtf8("actionViewZoomOneToOne"));
 411         menu_view->addAction(action_view_zoom_one_to_one_);
 412
 413         menu_view->addSeparator();
 414
 415         action_view_show_cursors_->setCheckable(true);
 416         action_view_show_cursors_->setChecked(view_->cursors_shown());
 417         action_view_show_cursors_->setIcon(QIcon::fromTheme("show-cursors",
 418                 QIcon(":/icons/show-cursors.svg")));
 419         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
 420         action_view_show_cursors_->setObjectName(
 421                 QString::fromUtf8("actionViewShowCursors"));
 422         action_view_show_cursors_->setText(tr("Show &Cursors"));
 423         menu_view->addAction(action_view_show_cursors_);
 424
 425         // Decoders Menu
 426 #ifdef ENABLE_DECODE
 427         QMenu *const menu_decoders = new QMenu;
 428         menu_decoders->setTitle(tr("&Decoders"));
 429
 430         menu_decoders_add_->setTitle(tr("&Add"));
 431         connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
 432                 this, SLOT(add_decoder(srd_decoder*)));
 433
 434         menu_decoders->addMenu(menu_decoders_add_);
 435 #endif
 436
 437         // Help Menu
 438         QMenu *const menu_help = new QMenu;
 439         menu_help->setTitle(tr("&Help"));
 440
 441         action_about_->setObjectName(QString::fromUtf8("actionAbout"));
 442         action_about_->setText(tr("&About..."));
 443         menu_help->addAction(action_about_);
 444
 445         menu_bar->addAction(menu_file->menuAction());
 446         menu_bar->addAction(menu_view->menuAction());
 447 #ifdef ENABLE_DECODE
 448         menu_bar->addAction(menu_decoders->menuAction());
 449 #endif
 450         menu_bar->addAction(menu_help->menuAction());
 451
 452         setMenuBar(menu_bar);
 453         QMetaObject::connectSlotsByName(this);
 454
 455         // Setup the toolbar
 456         main_bar_ = new toolbars::MainBar(session_, *this);
 457
 458         // Populate the device list and select the initially selected device
 459         update_device_list();
 460
 461         addToolBar(main_bar_);
 462
 463         // Set the title
 464         setWindowTitle(tr("PulseView"));
 465
 466         // Setup session_ events
 467         connect(&session_, SIGNAL(capture_state_changed(int)), this,
 468                 SLOT(capture_state_changed(int)));
 469         connect(&session_, SIGNAL(device_selected()), this,
 470                 SLOT(device_selected()));
 471 }
 472
 473 void MainWindow::save_ui_settings()
 474 {
 475         QSettings settings;
 476
 477         map<string, string> dev_info;
 478         list<string> key_list;
 479
 480         settings.beginGroup("MainWindow");
 481         settings.setValue("state", saveState());
 482         settings.setValue("geometry", saveGeometry());
 483         settings.endGroup();
 484
 485         if (session_.device()) {
 486                 settings.beginGroup("Device");
 487                 key_list.push_back("vendor");
 488                 key_list.push_back("model");
 489                 key_list.push_back("version");
 490                 key_list.push_back("serial_num");
 491                 key_list.push_back("connection_id");
 492
 493                 dev_info = device_manager_.get_device_info(
 494                         session_.device());
 495
 496                 for (string key : key_list) {
 497
 498                         if (dev_info.count(key))
 499                                 settings.setValue(QString::fromUtf8(key.c_str()),
 500                                                 QString::fromUtf8(dev_info.at(key).c_str()));
 501                         else
 502                                 settings.remove(QString::fromUtf8(key.c_str()));
 503                 }
 504
 505                 settings.endGroup();
 506         }
 507 }
 508
 509 void MainWindow::restore_ui_settings()
 510 {
 511         QSettings settings;
 512
 513         map<string, string> dev_info;
 514         list<string> key_list;
 515
 516         settings.beginGroup("MainWindow");
 517
 518         if (settings.contains("geometry")) {
 519                 restoreGeometry(settings.value("geometry").toByteArray());
 520                 restoreState(settings.value("state").toByteArray());
 521         } else
 522                 resize(1000, 720);
 523
 524         settings.endGroup();
 525
 526         // Re-select last used device if possible.
 527         settings.beginGroup("Device");
 528         key_list.push_back("vendor");
 529         key_list.push_back("model");
 530         key_list.push_back("version");
 531         key_list.push_back("serial_num");
 532         key_list.push_back("connection_id");
 533
 534         for (string key : key_list) {
 535                 const QString k = QString::fromStdString(key);
 536                 if (!settings.contains(k))
 537                         continue;
 538
 539                 const string value = settings.value(k).toString().toStdString();
 540                 if (!value.empty())
 541                         dev_info.insert(std::make_pair(key, value));
 542         }
 543
 544         const shared_ptr<devices::HardwareDevice> device =
 545                 device_manager_.find_device_from_info(dev_info);
 546         select_device(device);
 547         update_device_list();
 548
 549         settings.endGroup();
 550 }
 551
 552 void MainWindow::session_error(
 553         const QString text, const QString info_text)
 554 {
 555         QMetaObject::invokeMethod(this, "show_session_error",
 556                 Qt::QueuedConnection, Q_ARG(QString, text),
 557                 Q_ARG(QString, info_text));
 558 }
 559
 560 void MainWindow::update_device_list()
 561 {
 562         main_bar_->update_device_list();
 563 }
 564
 565 void MainWindow::closeEvent(QCloseEvent *event)
 566 {
 567         save_ui_settings();
 568         event->accept();
 569 }
 570
 571 void MainWindow::keyReleaseEvent(QKeyEvent *event)
 572 {
 573         if (event->key() == Qt::Key_Alt) {
 574                 menuBar()->setHidden(!menuBar()->isHidden());
 575                 menuBar()->setFocus();
 576         }
 577         QMainWindow::keyReleaseEvent(event);
 578 }
 579
 580 void MainWindow::load_file(QString file_name,
 581         std::shared_ptr<sigrok::InputFormat> format,
 582         const std::map<std::string, Glib::VariantBase> &options)
 583 {
 584         const QString errorMessage(
 585                 QString("Failed to load file %1").arg(file_name));
 586         const QString infoMessage;
 587
 588         try {
 589                 if (format)
 590                         session_.set_device(shared_ptr<devices::Device>(
 591                                 new devices::InputFile(
 592                                         device_manager_.context(),
 593                                         file_name.toStdString(),
 594                                         format, options)));
 595                 else
 596                         session_.set_device(shared_ptr<devices::Device>(
 597                                 new devices::SessionFile(
 598                                         device_manager_.context(),
 599                                         file_name.toStdString())));
 600         } catch(Error e) {
 601                 show_session_error(tr("Failed to load ") + file_name, e.what());
 602                 session_.set_default_device();
 603                 update_device_list();
 604                 return;
 605         }
 606
 607         update_device_list();
 608
 609         session_.start_capture([&, errorMessage, infoMessage](QString) {
 610                 session_error(errorMessage, infoMessage); });
 611 }
 612
 613 void MainWindow::show_session_error(
 614         const QString text, const QString info_text)
 615 {
 616         QMessageBox msg(this);
 617         msg.setText(text);
 618         msg.setInformativeText(info_text);
 619         msg.setStandardButtons(QMessageBox::Ok);
 620         msg.setIcon(QMessageBox::Warning);
 621         msg.exec();
 622 }
 623
 624 void MainWindow::on_actionOpen_triggered()
 625 {
 626         QSettings settings;
 627         const QString dir = settings.value(SettingOpenDirectory).toString();
 628
 629         // Show the dialog
 630         const QString file_name = QFileDialog::getOpenFileName(
 631                 this, tr("Open File"), dir, tr(
 632                         "Sigrok Sessions (*.sr);;"
 633                         "All Files (*.*)"));
 634
 635         if (!file_name.isEmpty()) {
 636                 load_file(file_name);
 637
 638                 const QString abs_path = QFileInfo(file_name).absolutePath();
 639                 settings.setValue(SettingOpenDirectory, abs_path);
 640         }
 641 }
 642
 643 void MainWindow::on_actionSaveAs_triggered()
 644 {
 645         export_file(device_manager_.context()->output_formats()["srzip"]);
 646 }
 647
 648 void MainWindow::on_actionConnect_triggered()
 649 {
 650         // Stop any currently running capture session
 651         session_.stop_capture();
 652
 653         dialogs::Connect dlg(this, device_manager_);
 654
 655         // If the user selected a device, select it in the device list. Select the
 656         // current device otherwise.
 657         if (dlg.exec())
 658                 select_device(dlg.get_selected_device());
 659
 660         update_device_list();
 661 }
 662
 663 void MainWindow::on_actionQuit_triggered()
 664 {
 665         close();
 666 }
 667
 668 void MainWindow::on_actionViewZoomIn_triggered()
 669 {
 670         view_->zoom(1);
 671 }
 672
 673 void MainWindow::on_actionViewZoomOut_triggered()
 674 {
 675         view_->zoom(-1);
 676 }
 677
 678 void MainWindow::on_actionViewZoomFit_triggered()
 679 {
 680         view_->zoom_fit();
 681 }
 682
 683 void MainWindow::on_actionViewZoomOneToOne_triggered()
 684 {
 685         view_->zoom_one_to_one();
 686 }
 687
 688 void MainWindow::on_actionViewShowCursors_triggered()
 689 {
 690         assert(view_);
 691
 692         const bool show = !view_->cursors_shown();
 693         if(show)
 694                 view_->centre_cursors();
 695
 696         view_->show_cursors(show);
 697 }
 698
 699 void MainWindow::on_actionAbout_triggered()
 700 {
 701         dialogs::About dlg(device_manager_.context(), this);
 702         dlg.exec();
 703 }
 704
 705 void MainWindow::add_decoder(srd_decoder *decoder)
 706 {
 707 #ifdef ENABLE_DECODE
 708         assert(decoder);
 709         session_.add_decoder(decoder);
 710 #else
 711         (void)decoder;
 712 #endif
 713 }
 714
 715 void MainWindow::capture_state_changed(int state)
 716 {
 717         main_bar_->set_capture_state((pv::Session::capture_state)state);
 718 }
 719
 720 void MainWindow::device_selected()
 721 {
 722         // Set the title to include the device/file name
 723         const shared_ptr<devices::Device> device = session_.device();
 724         if (!device)
 725                 return;
 726
 727         const string display_name = device->display_name(device_manager_);
 728         setWindowTitle(tr("%1 - PulseView").arg(display_name.c_str()));
 729 }
 730
 731 } // namespace pv