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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifdef ENABLE_DECODE
  21 #include <libsigrokdecode/libsigrokdecode.h>
  22 #endif
  23
  24 #include <algorithm>
  25 #include <cassert>
  26 #include <cstdarg>
  27 #include <cstdint>
  28 #include <iterator>
  29
  30 #include <QAction>
  31 #include <QApplication>
  32 #include <QCloseEvent>
  33 #include <QDebug>
  34 #include <QDockWidget>
  35 #include <QHBoxLayout>
  36 #include <QMessageBox>
  37 #include <QSettings>
  38 #include <QShortcut>
  39 #include <QWidget>
  40
  41 #include "mainwindow.hpp"
  42
  43 #include "devicemanager.hpp"
  44 #include "devices/hardwaredevice.hpp"
  45 #include "dialogs/settings.hpp"
  46 #include "globalsettings.hpp"
  47 #include "toolbars/mainbar.hpp"
  48 #include "util.hpp"
  49 #include "views/trace/view.hpp"
  50 #include "views/trace/standardbar.hpp"
  51
  52 #ifdef ENABLE_DECODE
  53 #include "subwindows/decoder_selector/subwindow.hpp"
  54 #include "views/decoder_output/view.hpp"
  55 #endif
  56
  57 #include <libsigrokcxx/libsigrokcxx.hpp>
  58
  59 using std::dynamic_pointer_cast;
  60 using std::make_shared;
  61 using std::shared_ptr;
  62 using std::string;
  63
  64 namespace pv {
  65
  66 using toolbars::MainBar;
  67
  68 const QString MainWindow::WindowTitle = tr("PulseView");
  69
  70 MainWindow::MainWindow(DeviceManager &device_manager, QWidget *parent) :
  71         QMainWindow(parent),
  72         device_manager_(device_manager),
  73         session_selector_(this),
  74         icon_red_(":/icons/status-red.svg"),
  75         icon_green_(":/icons/status-green.svg"),
  76         icon_grey_(":/icons/status-grey.svg")
  77 {
  78         setup_ui();
  79         restore_ui_settings();
  80 }
  81
  82 MainWindow::~MainWindow()
  83 {
  84         // Make sure we no longer hold any shared pointers to widgets after the
  85         // destructor finishes (goes for sessions and sub windows alike)
  86
  87         while (!sessions_.empty())
  88                 remove_session(sessions_.front());
  89
  90         sub_windows_.clear();
  91 }
  92
  93 void MainWindow::show_session_error(const QString text, const QString info_text)
  94 {
  95         // TODO Emulate noquote()
  96         qDebug() << "Notifying user of session error:" << info_text;
  97
  98         QMessageBox msg;
  99         msg.setText(text + "\n\n" + info_text);
 100         msg.setStandardButtons(QMessageBox::Ok);
 101         msg.setIcon(QMessageBox::Warning);
 102         msg.exec();
 103 }
 104
 105 shared_ptr<views::ViewBase> MainWindow::get_active_view() const
 106 {
 107         // If there's only one view, use it...
 108         if (view_docks_.size() == 1)
 109                 return view_docks_.begin()->second;
 110
 111         // ...otherwise find the dock widget the widget with focus is contained in
 112         QObject *w = QApplication::focusWidget();
 113         QDockWidget *dock = nullptr;
 114
 115         while (w) {
 116                 dock = qobject_cast<QDockWidget*>(w);
 117                 if (dock)
 118                         break;
 119                 w = w->parent();
 120         }
 121
 122         // Get the view contained in the dock widget
 123         for (auto& entry : view_docks_)
 124                 if (entry.first == dock)
 125                         return entry.second;
 126
 127         return nullptr;
 128 }
 129
 130 shared_ptr<views::ViewBase> MainWindow::add_view(views::ViewType type,
 131         Session &session)
 132 {
 133         GlobalSettings settings;
 134         shared_ptr<views::ViewBase> v;
 135
 136         QMainWindow *main_window = nullptr;
 137         for (auto& entry : session_windows_)
 138                 if (entry.first.get() == &session)
 139                         main_window = entry.second;
 140
 141         assert(main_window);
 142
 143         shared_ptr<MainBar> main_bar = session.main_bar();
 144
 145         // Only use the view type in the name if it's not the main view
 146         QString title;
 147         if (main_bar)
 148                 title = QString("%1 (%2)").arg(session.name(), views::ViewTypeNames[type]);
 149         else
 150                 title = session.name();
 151
 152         QDockWidget* dock = new QDockWidget(title, main_window);
 153         dock->setObjectName(title);
 154         main_window->addDockWidget(Qt::TopDockWidgetArea, dock);
 155
 156         // Insert a QMainWindow into the dock widget to allow for a tool bar
 157         QMainWindow *dock_main = new QMainWindow(dock);
 158         dock_main->setWindowFlags(Qt::Widget);  // Remove Qt::Window flag
 159
 160         if (type == views::ViewTypeTrace)
 161                 // This view will be the main view if there's no main bar yet
 162                 v = make_shared<views::trace::View>(session, (main_bar ? false : true), dock_main);
 163 #ifdef ENABLE_DECODE
 164         if (type == views::ViewTypeDecoderOutput)
 165                 v = make_shared<views::decoder_output::View>(session, false, dock_main);
 166 #endif
 167
 168         if (!v)
 169                 return nullptr;
 170
 171         view_docks_[dock] = v;
 172         session.register_view(v);
 173
 174         dock_main->setCentralWidget(v.get());
 175         dock->setWidget(dock_main);
 176
 177         dock->setContextMenuPolicy(Qt::PreventContextMenu);
 178         dock->setFeatures(QDockWidget::DockWidgetMovable |
 179                 QDockWidget::DockWidgetFloatable | QDockWidget::DockWidgetClosable);
 180
 181         QAbstractButton *close_btn =
 182                 dock->findChildren<QAbstractButton*>("qt_dockwidget_closebutton")  // clazy:exclude=detaching-temporary
 183                         .front();
 184
 185         connect(close_btn, SIGNAL(clicked(bool)),
 186                 this, SLOT(on_view_close_clicked()));
 187
 188         connect(&session, SIGNAL(trigger_event(int, util::Timestamp)),
 189                 qobject_cast<views::ViewBase*>(v.get()),
 190                 SLOT(trigger_event(int, util::Timestamp)));
 191
 192         if (type == views::ViewTypeTrace) {
 193                 views::trace::View *tv =
 194                         qobject_cast<views::trace::View*>(v.get());
 195
 196                 if (!main_bar) {
 197                         /* Initial view, create the main bar */
 198                         main_bar = make_shared<MainBar>(session, this, tv);
 199                         dock_main->addToolBar(main_bar.get());
 200                         session.set_main_bar(main_bar);
 201
 202                         connect(main_bar.get(), SIGNAL(new_view(Session*, int)),
 203                                 this, SLOT(on_new_view(Session*, int)));
 204                         connect(main_bar.get(), SIGNAL(show_decoder_selector(Session*)),
 205                                 this, SLOT(on_show_decoder_selector(Session*)));
 206
 207                         main_bar->action_view_show_cursors()->setChecked(tv->cursors_shown());
 208
 209                         /* For the main view we need to prevent the dock widget from
 210                          * closing itself when its close button is clicked. This is
 211                          * so we can confirm with the user first. Regular views don't
 212                          * need this */
 213                         close_btn->disconnect(SIGNAL(clicked()), dock, SLOT(close()));
 214                 } else {
 215                         /* Additional view, create a standard bar */
 216                         pv::views::trace::StandardBar *standard_bar =
 217                                 new pv::views::trace::StandardBar(session, this, tv);
 218                         dock_main->addToolBar(standard_bar);
 219
 220                         standard_bar->action_view_show_cursors()->setChecked(tv->cursors_shown());
 221                 }
 222         }
 223
 224         return v;
 225 }
 226
 227 void MainWindow::remove_view(shared_ptr<views::ViewBase> view)
 228 {
 229         for (shared_ptr<Session> session : sessions_) {
 230                 if (!session->has_view(view))
 231                         continue;
 232
 233                 // Find the dock the view is contained in and remove it
 234                 for (auto& entry : view_docks_)
 235                         if (entry.second == view) {
 236                                 // Remove the view from the session
 237                                 session->deregister_view(view);
 238
 239                                 // Remove the view from its parent; otherwise, Qt will
 240                                 // call deleteLater() on it, which causes a double free
 241                                 // since the shared_ptr in view_docks_ doesn't know
 242                                 // that Qt keeps a pointer to the view around
 243                                 view->setParent(nullptr);
 244
 245                                 // Delete the view's dock widget and all widgets inside it
 246                                 entry.first->deleteLater();
 247
 248                                 // Remove the dock widget from the list and stop iterating
 249                                 view_docks_.erase(entry.first);
 250                                 break;
 251                         }
 252         }
 253 }
 254
 255 shared_ptr<subwindows::SubWindowBase> MainWindow::add_subwindow(
 256         subwindows::SubWindowType type, Session &session)
 257 {
 258         GlobalSettings settings;
 259         shared_ptr<subwindows::SubWindowBase> v;
 260
 261         QMainWindow *main_window = nullptr;
 262         for (auto& entry : session_windows_)
 263                 if (entry.first.get() == &session)
 264                         main_window = entry.second;
 265
 266         assert(main_window);
 267
 268         QString title = "";
 269
 270         switch (type) {
 271 #ifdef ENABLE_DECODE
 272                 case subwindows::SubWindowTypeDecoderSelector:
 273                         title = tr("Decoder Selector");
 274                         break;
 275 #endif
 276                 default:
 277                         break;
 278         }
 279
 280         QDockWidget* dock = new QDockWidget(title, main_window);
 281         dock->setObjectName(title);
 282         main_window->addDockWidget(Qt::TopDockWidgetArea, dock);
 283
 284         // Insert a QMainWindow into the dock widget to allow for a tool bar
 285         QMainWindow *dock_main = new QMainWindow(dock);
 286         dock_main->setWindowFlags(Qt::Widget);  // Remove Qt::Window flag
 287
 288 #ifdef ENABLE_DECODE
 289         if (type == subwindows::SubWindowTypeDecoderSelector)
 290                 v = make_shared<subwindows::decoder_selector::SubWindow>(session, dock_main);
 291 #endif
 292
 293         if (!v)
 294                 return nullptr;
 295
 296         sub_windows_[dock] = v;
 297         dock_main->setCentralWidget(v.get());
 298         dock->setWidget(dock_main);
 299
 300         dock->setContextMenuPolicy(Qt::PreventContextMenu);
 301         dock->setFeatures(QDockWidget::DockWidgetMovable |
 302                 QDockWidget::DockWidgetFloatable | QDockWidget::DockWidgetClosable);
 303
 304         QAbstractButton *close_btn =
 305                 dock->findChildren<QAbstractButton*>  // clazy:exclude=detaching-temporary
 306                         ("qt_dockwidget_closebutton").front();
 307
 308         // Allow all subwindows to be closed via ESC.
 309         close_btn->setShortcut(QKeySequence(Qt::Key_Escape));
 310
 311         connect(close_btn, SIGNAL(clicked(bool)),
 312                 this, SLOT(on_sub_window_close_clicked()));
 313
 314         if (v->has_toolbar())
 315                 dock_main->addToolBar(v->create_toolbar(dock_main));
 316
 317         if (v->minimum_width() > 0)
 318                 dock->setMinimumSize(v->minimum_width(), 0);
 319
 320         return v;
 321 }
 322
 323 shared_ptr<Session> MainWindow::add_session()
 324 {
 325         static int last_session_id = 1;
 326         QString name = tr("Session %1").arg(last_session_id++);
 327
 328         shared_ptr<Session> session = make_shared<Session>(device_manager_, name);
 329
 330         connect(session.get(), SIGNAL(add_view(views::ViewType, Session*)),
 331                 this, SLOT(on_add_view(views::ViewType, Session*)));
 332         connect(session.get(), SIGNAL(name_changed()),
 333                 this, SLOT(on_session_name_changed()));
 334         connect(session.get(), SIGNAL(device_changed()),
 335                 this, SLOT(on_session_device_changed()));
 336         connect(session.get(), SIGNAL(capture_state_changed(int)),
 337                 this, SLOT(on_session_capture_state_changed(int)));
 338
 339         sessions_.push_back(session);
 340
 341         QMainWindow *window = new QMainWindow();
 342         window->setWindowFlags(Qt::Widget);  // Remove Qt::Window flag
 343         session_windows_[session] = window;
 344
 345         int index = session_selector_.addTab(window, name);
 346         session_selector_.setCurrentIndex(index);
 347         last_focused_session_ = session;
 348
 349         window->setDockNestingEnabled(true);
 350
 351         shared_ptr<views::ViewBase> main_view = add_view(views::ViewTypeTrace, *session);
 352
 353         return session;
 354 }
 355
 356 void MainWindow::remove_session(shared_ptr<Session> session)
 357 {
 358         // Determine the height of the button before it collapses
 359         int h = new_session_button_->height();
 360
 361         // Stop capture while the session still exists so that the UI can be
 362         // updated in case we're currently running. If so, this will schedule a
 363         // call to our on_capture_state_changed() slot for the next run of the
 364         // event loop. We need to have this executed immediately or else it will
 365         // be dismissed since the session object will be deleted by the time we
 366         // leave this method and the event loop gets a chance to run again.
 367         session->stop_capture();
 368         QApplication::processEvents();
 369
 370         for (const shared_ptr<views::ViewBase>& view : session->views())
 371                 remove_view(view);
 372
 373         QMainWindow *window = session_windows_.at(session);
 374         session_selector_.removeTab(session_selector_.indexOf(window));
 375
 376         session_windows_.erase(session);
 377
 378         if (last_focused_session_ == session)
 379                 last_focused_session_.reset();
 380
 381         // Remove the session from our list of sessions (which also destroys it)
 382         sessions_.remove_if([&](shared_ptr<Session> s) {
 383                 return s == session; });
 384
 385         if (sessions_.empty()) {
 386                 // When there are no more tabs, the height of the QTabWidget
 387                 // drops to zero. We must prevent this to keep the static
 388                 // widgets visible
 389                 for (QWidget *w : static_tab_widget_->findChildren<QWidget*>())  // clazy:exclude=range-loop
 390                         w->setMinimumHeight(h);
 391
 392                 int margin = static_tab_widget_->layout()->contentsMargins().bottom();
 393                 static_tab_widget_->setMinimumHeight(h + 2 * margin);
 394                 session_selector_.setMinimumHeight(h + 2 * margin);
 395
 396                 // Update the window title if there is no view left to
 397                 // generate focus change events
 398                 setWindowTitle(WindowTitle);
 399         }
 400 }
 401
 402 void MainWindow::add_session_with_file(string open_file_name,
 403         string open_file_format, string open_setup_file_name)
 404 {
 405         shared_ptr<Session> session = add_session();
 406         session->load_init_file(open_file_name, open_file_format, open_setup_file_name);
 407 }
 408
 409 void MainWindow::add_default_session()
 410 {
 411         // Only add the default session if there would be no session otherwise
 412         if (sessions_.size() > 0)
 413                 return;
 414
 415         shared_ptr<Session> session = add_session();
 416
 417         // Check the list of available devices. Prefer the one that was
 418         // found with user supplied scan specs (if applicable). Then try
 419         // one of the auto detected devices that are not the demo device.
 420         // Pick demo in the absence of "genuine" hardware devices.
 421         shared_ptr<devices::HardwareDevice> user_device, other_device, demo_device;
 422         for (const shared_ptr<devices::HardwareDevice>& dev : device_manager_.devices()) {
 423                 if (dev == device_manager_.user_spec_device()) {
 424                         user_device = dev;
 425                 } else if (dev->hardware_device()->driver()->name() == "demo") {
 426                         demo_device = dev;
 427                 } else {
 428                         other_device = dev;
 429                 }
 430         }
 431         if (user_device)
 432                 session->select_device(user_device);
 433         else if (other_device)
 434                 session->select_device(other_device);
 435         else
 436                 session->select_device(demo_device);
 437 }
 438
 439 void MainWindow::save_sessions()
 440 {
 441         QSettings settings;
 442         int id = 0;
 443
 444         for (shared_ptr<Session>& session : sessions_) {
 445                 // Ignore sessions using the demo device or no device at all
 446                 if (session->device()) {
 447                         shared_ptr<devices::HardwareDevice> device =
 448                                 dynamic_pointer_cast< devices::HardwareDevice >
 449                                 (session->device());
 450
 451                         if (device &&
 452                                 device->hardware_device()->driver()->name() == "demo")
 453                                 continue;
 454
 455                         settings.beginGroup("Session" + QString::number(id++));
 456                         settings.remove("");  // Remove all keys in this group
 457                         session->save_settings(settings);
 458                         settings.endGroup();
 459                 }
 460         }
 461
 462         settings.setValue("sessions", id);
 463 }
 464
 465 void MainWindow::restore_sessions()
 466 {
 467         QSettings settings;
 468         int i, session_count;
 469
 470         session_count = settings.value("sessions", 0).toInt();
 471
 472         for (i = 0; i < session_count; i++) {
 473                 settings.beginGroup("Session" + QString::number(i));
 474                 shared_ptr<Session> session = add_session();
 475                 session->restore_settings(settings);
 476                 settings.endGroup();
 477         }
 478 }
 479
 480 void MainWindow::setup_ui()
 481 {
 482         setObjectName(QString::fromUtf8("MainWindow"));
 483
 484         setCentralWidget(&session_selector_);
 485
 486         // Set the window icon
 487         QIcon icon;
 488         icon.addFile(QString(":/icons/pulseview.png"));
 489         setWindowIcon(icon);
 490
 491         // Set up keyboard shortcuts that affect all views at once
 492         view_sticky_scrolling_shortcut_ = new QShortcut(QKeySequence(Qt::Key_S), this, SLOT(on_view_sticky_scrolling_shortcut()));
 493         view_sticky_scrolling_shortcut_->setAutoRepeat(false);
 494
 495         view_show_sampling_points_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Period), this, SLOT(on_view_show_sampling_points_shortcut()));
 496         view_show_sampling_points_shortcut_->setAutoRepeat(false);
 497
 498         view_show_analog_minor_grid_shortcut_ = new QShortcut(QKeySequence(Qt::Key_G), this, SLOT(on_view_show_analog_minor_grid_shortcut()));
 499         view_show_analog_minor_grid_shortcut_->setAutoRepeat(false);
 500
 501         view_colored_bg_shortcut_ = new QShortcut(QKeySequence(Qt::Key_B), this, SLOT(on_view_colored_bg_shortcut()));
 502         view_colored_bg_shortcut_->setAutoRepeat(false);
 503
 504         // Set up the tab area
 505         new_session_button_ = new QToolButton();
 506         new_session_button_->setIcon(QIcon::fromTheme("document-new",
 507                 QIcon(":/icons/document-new.png")));
 508         new_session_button_->setToolTip(tr("Create New Session"));
 509         new_session_button_->setAutoRaise(true);
 510
 511         run_stop_button_ = new QToolButton();
 512         run_stop_button_->setAutoRaise(true);
 513         run_stop_button_->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 514         run_stop_button_->setToolTip(tr("Start/Stop Acquisition"));
 515
 516         run_stop_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Space), run_stop_button_, SLOT(click()));
 517         run_stop_shortcut_->setAutoRepeat(false);
 518
 519         settings_button_ = new QToolButton();
 520         settings_button_->setIcon(QIcon::fromTheme("preferences-system",
 521                 QIcon(":/icons/preferences-system.png")));
 522         settings_button_->setToolTip(tr("Settings"));
 523         settings_button_->setAutoRaise(true);
 524
 525         QFrame *separator1 = new QFrame();
 526         separator1->setFrameStyle(QFrame::VLine | QFrame::Raised);
 527         QFrame *separator2 = new QFrame();
 528         separator2->setFrameStyle(QFrame::VLine | QFrame::Raised);
 529
 530         QHBoxLayout* layout = new QHBoxLayout();
 531         layout->setContentsMargins(2, 2, 2, 2);
 532         layout->addWidget(new_session_button_);
 533         layout->addWidget(separator1);
 534         layout->addWidget(run_stop_button_);
 535         layout->addWidget(separator2);
 536         layout->addWidget(settings_button_);
 537
 538         static_tab_widget_ = new QWidget();
 539         static_tab_widget_->setLayout(layout);
 540
 541         session_selector_.setCornerWidget(static_tab_widget_, Qt::TopLeftCorner);
 542         session_selector_.setTabsClosable(true);
 543
 544         close_application_shortcut_ = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q), this, SLOT(close()));
 545         close_application_shortcut_->setAutoRepeat(false);
 546
 547         close_current_tab_shortcut_ = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_W), this, SLOT(on_close_current_tab()));
 548
 549         connect(new_session_button_, SIGNAL(clicked(bool)),
 550                 this, SLOT(on_new_session_clicked()));
 551         connect(run_stop_button_, SIGNAL(clicked(bool)),
 552                 this, SLOT(on_run_stop_clicked()));
 553         connect(settings_button_, SIGNAL(clicked(bool)),
 554                 this, SLOT(on_settings_clicked()));
 555
 556         connect(&session_selector_, SIGNAL(tabCloseRequested(int)),
 557                 this, SLOT(on_tab_close_requested(int)));
 558         connect(&session_selector_, SIGNAL(currentChanged(int)),
 559                 this, SLOT(on_tab_changed(int)));
 560
 561
 562         connect(static_cast<QApplication *>(QCoreApplication::instance()),
 563                 SIGNAL(focusChanged(QWidget*, QWidget*)),
 564                 this, SLOT(on_focus_changed()));
 565 }
 566
 567 void MainWindow::update_acq_button(Session *session)
 568 {
 569         int state = session->get_capture_state();
 570
 571         const QString run_caption =
 572                 session->using_file_device() ? tr("Reload") : tr("Run");
 573
 574         const QIcon *icons[] = {&icon_grey_, &icon_red_, &icon_green_};
 575         run_stop_button_->setIcon(*icons[state]);
 576         run_stop_button_->setText((state == pv::Session::Stopped) ?
 577                 run_caption : tr("Stop"));
 578 }
 579
 580 void MainWindow::save_ui_settings()
 581 {
 582         QSettings settings;
 583
 584         settings.beginGroup("MainWindow");
 585         settings.setValue("state", saveState());
 586         settings.setValue("geometry", saveGeometry());
 587         settings.endGroup();
 588 }
 589
 590 void MainWindow::restore_ui_settings()
 591 {
 592         QSettings settings;
 593
 594         settings.beginGroup("MainWindow");
 595
 596         if (settings.contains("geometry")) {
 597                 restoreGeometry(settings.value("geometry").toByteArray());
 598                 restoreState(settings.value("state").toByteArray());
 599         } else
 600                 resize(1000, 720);
 601
 602         settings.endGroup();
 603 }
 604
 605 shared_ptr<Session> MainWindow::get_tab_session(int index) const
 606 {
 607         // Find the session that belongs to the tab's main window
 608         for (auto& entry : session_windows_)
 609                 if (entry.second == session_selector_.widget(index))
 610                         return entry.first;
 611
 612         return nullptr;
 613 }
 614
 615 void MainWindow::closeEvent(QCloseEvent *event)
 616 {
 617         bool data_saved = true;
 618
 619         for (auto& entry : session_windows_)
 620                 if (!entry.first->data_saved())
 621                         data_saved = false;
 622
 623         if (!data_saved && (QMessageBox::question(this, tr("Confirmation"),
 624                 tr("There is unsaved data. Close anyway?"),
 625                 QMessageBox::Yes | QMessageBox::No) == QMessageBox::No)) {
 626                 event->ignore();
 627         } else {
 628                 save_ui_settings();
 629                 save_sessions();
 630                 event->accept();
 631         }
 632 }
 633
 634 QMenu* MainWindow::createPopupMenu()
 635 {
 636         return nullptr;
 637 }
 638
 639 bool MainWindow::restoreState(const QByteArray &state, int version)
 640 {
 641         (void)state;
 642         (void)version;
 643
 644         // Do nothing. We don't want Qt to handle this, or else it
 645         // will try to restore all the dock widgets and create havoc.
 646
 647         return false;
 648 }
 649
 650 void MainWindow::on_add_view(views::ViewType type, Session *session)
 651 {
 652         // We get a pointer and need a reference
 653         for (shared_ptr<Session>& s : sessions_)
 654                 if (s.get() == session)
 655                         add_view(type, *s);
 656 }
 657
 658 void MainWindow::on_focus_changed()
 659 {
 660         shared_ptr<views::ViewBase> view = get_active_view();
 661
 662         if (view) {
 663                 for (shared_ptr<Session> session : sessions_) {
 664                         if (session->has_view(view)) {
 665                                 if (session != last_focused_session_) {
 666                                         // Activate correct tab if necessary
 667                                         shared_ptr<Session> tab_session = get_tab_session(
 668                                                 session_selector_.currentIndex());
 669                                         if (tab_session != session)
 670                                                 session_selector_.setCurrentWidget(
 671                                                         session_windows_.at(session));
 672
 673                                         on_focused_session_changed(session);
 674                                 }
 675
 676                                 break;
 677                         }
 678                 }
 679         }
 680
 681         if (sessions_.empty())
 682                 setWindowTitle(WindowTitle);
 683 }
 684
 685 void MainWindow::on_focused_session_changed(shared_ptr<Session> session)
 686 {
 687         last_focused_session_ = session;
 688
 689         setWindowTitle(session->name() + " - " + WindowTitle);
 690
 691         // Update the state of the run/stop button, too
 692         update_acq_button(session.get());
 693 }
 694
 695 void MainWindow::on_new_session_clicked()
 696 {
 697         add_session();
 698 }
 699
 700 void MainWindow::on_run_stop_clicked()
 701 {
 702         shared_ptr<Session> session = last_focused_session_;
 703
 704         if (!session)
 705                 return;
 706
 707         switch (session->get_capture_state()) {
 708         case Session::Stopped:
 709                 session->start_capture([&](QString message) {
 710                         show_session_error("Capture failed", message); });
 711                 break;
 712         case Session::AwaitingTrigger:
 713         case Session::Running:
 714                 session->stop_capture();
 715                 break;
 716         }
 717 }
 718
 719 void MainWindow::on_settings_clicked()
 720 {
 721         dialogs::Settings dlg(device_manager_);
 722         dlg.exec();
 723 }
 724
 725 void MainWindow::on_session_name_changed()
 726 {
 727         // Update the corresponding dock widget's name(s)
 728         Session *session = qobject_cast<Session*>(QObject::sender());
 729         assert(session);
 730
 731         for (const shared_ptr<views::ViewBase>& view : session->views()) {
 732                 // Get the dock that contains the view
 733                 for (auto& entry : view_docks_)
 734                         if (entry.second == view) {
 735                                 entry.first->setObjectName(session->name());
 736                                 entry.first->setWindowTitle(session->name());
 737                         }
 738         }
 739
 740         // Update the tab widget by finding the main window and the tab from that
 741         for (auto& entry : session_windows_)
 742                 if (entry.first.get() == session) {
 743                         QMainWindow *window = entry.second;
 744                         const int index = session_selector_.indexOf(window);
 745                         session_selector_.setTabText(index, session->name());
 746                 }
 747
 748         // Refresh window title if the affected session has focus
 749         if (session == last_focused_session_.get())
 750                 setWindowTitle(session->name() + " - " + WindowTitle);
 751 }
 752
 753 void MainWindow::on_session_device_changed()
 754 {
 755         Session *session = qobject_cast<Session*>(QObject::sender());
 756         assert(session);
 757
 758         // Ignore if caller is not the currently focused session
 759         // unless there is only one session
 760         if ((sessions_.size() > 1) && (session != last_focused_session_.get()))
 761                 return;
 762
 763         update_acq_button(session);
 764 }
 765
 766 void MainWindow::on_session_capture_state_changed(int state)
 767 {
 768         (void)state;
 769
 770         Session *session = qobject_cast<Session*>(QObject::sender());
 771         assert(session);
 772
 773         // Ignore if caller is not the currently focused session
 774         // unless there is only one session
 775         if ((sessions_.size() > 1) && (session != last_focused_session_.get()))
 776                 return;
 777
 778         update_acq_button(session);
 779 }
 780
 781 void MainWindow::on_new_view(Session *session, int view_type)
 782 {
 783         // We get a pointer and need a reference
 784         for (shared_ptr<Session>& s : sessions_)
 785                 if (s.get() == session)
 786                         add_view((views::ViewType)view_type, *s);
 787 }
 788
 789 void MainWindow::on_view_close_clicked()
 790 {
 791         // Find the dock widget that contains the close button that was clicked
 792         QObject *w = QObject::sender();
 793         QDockWidget *dock = nullptr;
 794
 795         while (w) {
 796             dock = qobject_cast<QDockWidget*>(w);
 797             if (dock)
 798                 break;
 799             w = w->parent();
 800         }
 801
 802         // Get the view contained in the dock widget
 803         shared_ptr<views::ViewBase> view;
 804
 805         for (auto& entry : view_docks_)
 806                 if (entry.first == dock)
 807                         view = entry.second;
 808
 809         // Deregister the view
 810         for (shared_ptr<Session> session : sessions_) {
 811                 if (!session->has_view(view))
 812                         continue;
 813
 814                 // Also destroy the entire session if its main view is closing...
 815                 if (view == session->main_view()) {
 816                         // ...but only if data is saved or the user confirms closing
 817                         if (session->data_saved() || (QMessageBox::question(this, tr("Confirmation"),
 818                                 tr("This session contains unsaved data. Close it anyway?"),
 819                                 QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes))
 820                                 remove_session(session);
 821                         break;
 822                 } else
 823                         // All other views can be closed at any time as no data will be lost
 824                         remove_view(view);
 825         }
 826 }
 827
 828 void MainWindow::on_tab_changed(int index)
 829 {
 830         shared_ptr<Session> session = get_tab_session(index);
 831
 832         if (session)
 833                 on_focused_session_changed(session);
 834 }
 835
 836 void MainWindow::on_tab_close_requested(int index)
 837 {
 838         shared_ptr<Session> session = get_tab_session(index);
 839
 840         if (!session)
 841                 return;
 842
 843         if (session->data_saved() || (QMessageBox::question(this, tr("Confirmation"),
 844                 tr("This session contains unsaved data. Close it anyway?"),
 845                 QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes))
 846                 remove_session(session);
 847 }
 848
 849 void MainWindow::on_show_decoder_selector(Session *session)
 850 {
 851 #ifdef ENABLE_DECODE
 852         // Close dock widget if it's already showing and return
 853         for (auto& entry : sub_windows_) {
 854                 QDockWidget* dock = entry.first;
 855                 shared_ptr<subwindows::SubWindowBase> decoder_selector =
 856                         dynamic_pointer_cast<subwindows::decoder_selector::SubWindow>(entry.second);
 857
 858                 if (decoder_selector && (&decoder_selector->session() == session)) {
 859                         sub_windows_.erase(dock);
 860                         dock->close();
 861                         return;
 862                 }
 863         }
 864
 865         // We get a pointer and need a reference
 866         for (shared_ptr<Session>& s : sessions_)
 867                 if (s.get() == session)
 868                         add_subwindow(subwindows::SubWindowTypeDecoderSelector, *s);
 869 #endif
 870 }
 871
 872 void MainWindow::on_sub_window_close_clicked()
 873 {
 874         // Find the dock widget that contains the close button that was clicked
 875         QObject *w = QObject::sender();
 876         QDockWidget *dock = nullptr;
 877
 878         while (w) {
 879             dock = qobject_cast<QDockWidget*>(w);
 880             if (dock)
 881                 break;
 882             w = w->parent();
 883         }
 884
 885         sub_windows_.erase(dock);
 886         dock->close();
 887 }
 888
 889 void MainWindow::on_view_colored_bg_shortcut()
 890 {
 891         GlobalSettings settings;
 892
 893         bool state = settings.value(GlobalSettings::Key_View_ColoredBG).toBool();
 894         settings.setValue(GlobalSettings::Key_View_ColoredBG, !state);
 895 }
 896
 897 void MainWindow::on_view_sticky_scrolling_shortcut()
 898 {
 899         GlobalSettings settings;
 900
 901         bool state = settings.value(GlobalSettings::Key_View_StickyScrolling).toBool();
 902         settings.setValue(GlobalSettings::Key_View_StickyScrolling, !state);
 903 }
 904
 905 void MainWindow::on_view_show_sampling_points_shortcut()
 906 {
 907         GlobalSettings settings;
 908
 909         bool state = settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool();
 910         settings.setValue(GlobalSettings::Key_View_ShowSamplingPoints, !state);
 911 }
 912
 913 void MainWindow::on_view_show_analog_minor_grid_shortcut()
 914 {
 915         GlobalSettings settings;
 916
 917         bool state = settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool();
 918         settings.setValue(GlobalSettings::Key_View_ShowAnalogMinorGrid, !state);
 919 }
 920
 921 void MainWindow::on_close_current_tab()
 922 {
 923         int tab = session_selector_.currentIndex();
 924
 925         on_tab_close_requested(tab);
 926 }
 927
 928 } // namespace pv