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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 void MainWindow::run_stop()
207 {
208         switch (session_.get_capture_state()) {
209         case Session::Stopped:
210                 session_.start_capture([&](QString message) {
211                         session_error("Capture failed", message); });
212                 break;
213         case Session::AwaitingTrigger:
214         case Session::Running:
215                 session_.stop_capture();
216                 break;
217         }
218 }
219
220 void MainWindow::select_device(shared_ptr<devices::Device> device)
221 {
222         try {
223                 if (device)
224                         session_.set_device(device);
225                 else
226                         session_.set_default_device();
227         } catch (const QString &e) {
228                 QMessageBox msg(this);
229                 msg.setText(e);
230                 msg.setInformativeText(tr("Failed to Select Device"));
231                 msg.setStandardButtons(QMessageBox::Ok);
232                 msg.setIcon(QMessageBox::Warning);
233                 msg.exec();
234         }
235 }
236
237 void MainWindow::export_file(shared_ptr<OutputFormat> format,
238         bool selection_only)
239 {
240         using pv::dialogs::StoreProgress;
241
242         // Stop any currently running capture session
243         session_.stop_capture();
244
245         QSettings settings;
246         const QString dir = settings.value(SettingSaveDirectory).toString();
247
248         std::pair<uint64_t, uint64_t> sample_range;
249
250         // Selection only? Verify that the cursors are active and fetch their values
251         if (selection_only) {
252                 if (!view_->cursors()->enabled()) {
253                         show_session_error(tr("Missing Cursors"), tr("You need to set the " \
254                                         "cursors before you can save the data enclosed by them " \
255                                         "to a session file (e.g. using ALT-V - Show Cursors)."));
256                         return;
257                 }
258
259                 const double samplerate = session_.get_samplerate();
260
261                 const pv::util::Timestamp& start_time = view_->cursors()->first()->time();
262                 const pv::util::Timestamp& end_time = view_->cursors()->second()->time();
263
264                 const uint64_t start_sample =
265                         std::max((double)0, start_time.convert_to<double>() * samplerate);
266                 const uint64_t end_sample = end_time.convert_to<double>() * samplerate;
267
268                 sample_range = std::make_pair(start_sample, end_sample);
269         } else {
270                 sample_range = std::make_pair(0, 0);
271         }
272
273         // Construct the filter
274         const vector<string> exts = format->extensions();
275         QString filter = tr("%1 files ").arg(
276                 QString::fromStdString(format->description()));
277
278         if (exts.empty())
279                 filter += "(*.*)";
280         else
281                 filter += QString("(*.%1);;%2 (*.*)").arg(
282                         QString::fromStdString(join(exts, ", *.")),
283                         tr("All Files"));
284
285         // Show the file dialog
286         const QString file_name = QFileDialog::getSaveFileName(
287                 this, tr("Save File"), dir, filter);
288
289         if (file_name.isEmpty())
290                 return;
291
292         const QString abs_path = QFileInfo(file_name).absolutePath();
293         settings.setValue(SettingSaveDirectory, abs_path);
294
295         // Show the options dialog
296         map<string, Glib::VariantBase> options;
297         if (!format->options().empty()) {
298                 dialogs::InputOutputOptions dlg(
299                         tr("Export %1").arg(QString::fromStdString(
300                                 format->description())),
301                         format->options(), this);
302                 if (!dlg.exec())
303                         return;
304                 options = dlg.options();
305         }
306
307         StoreProgress *dlg = new StoreProgress(file_name, format, options,
308                 sample_range, session_, this);
309         dlg->run();
310 }
311
312 void MainWindow::import_file(shared_ptr<InputFormat> format)
313 {
314         assert(format);
315
316         QSettings settings;
317         const QString dir = settings.value(SettingOpenDirectory).toString();
318
319         // Construct the filter
320         const vector<string> exts = format->extensions();
321         const QString filter = exts.empty() ? "" :
322                 tr("%1 files (*.%2)").arg(
323                         QString::fromStdString(format->description()),
324                         QString::fromStdString(join(exts, ", *.")));
325
326         // Show the file dialog
327         const QString file_name = QFileDialog::getOpenFileName(
328                 this, tr("Import File"), dir, tr(
329                         "%1 files (*.*);;All Files (*.*)").arg(
330                         QString::fromStdString(format->description())));
331
332         if (file_name.isEmpty())
333                 return;
334
335         // Show the options dialog
336         map<string, Glib::VariantBase> options;
337         if (!format->options().empty()) {
338                 dialogs::InputOutputOptions dlg(
339                         tr("Import %1").arg(QString::fromStdString(
340                                 format->description())),
341                         format->options(), this);
342                 if (!dlg.exec())
343                         return;
344                 options = dlg.options();
345         }
346
347         load_file(file_name, format, options);
348
349         const QString abs_path = QFileInfo(file_name).absolutePath();
350         settings.setValue(SettingOpenDirectory, abs_path);
351 }
352
353 void MainWindow::setup_ui()
354 {
355         setObjectName(QString::fromUtf8("MainWindow"));
356
357         // Set the window icon
358         QIcon icon;
359         icon.addFile(QString(":/icons/sigrok-logo-notext.svg"));
360         setWindowIcon(icon);
361
362         // Set up the initial view
363         shared_ptr<pv::view::View> view = make_shared<pv::view::View>(session_, this);
364         shared_ptr<QDockWidget> dock = make_shared<QDockWidget>(tr("Untitled"), this);
365         dock->setWidget(view.get());
366         addDockWidget(Qt::TopDockWidgetArea, dock.get());
367         view_docks_[dock] = view;
368
369         view_ = view.get(); // view_ will be refactored later
370
371         // Setup the menu bar
372         pv::widgets::HidingMenuBar *const menu_bar =
373                 new pv::widgets::HidingMenuBar(this);
374
375         // File Menu
376         QMenu *const menu_file = new QMenu;
377         menu_file->setTitle(tr("&File"));
378
379         action_open_->setText(tr("&Open..."));
380         action_open_->setIcon(QIcon::fromTheme("document-open",
381                 QIcon(":/icons/document-open.png")));
382         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
383         action_open_->setObjectName(QString::fromUtf8("actionOpen"));
384         menu_file->addAction(action_open_);
385
386         action_save_as_->setText(tr("&Save As..."));
387         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
388                 QIcon(":/icons/document-save-as.png")));
389         action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
390         action_save_as_->setObjectName(QString::fromUtf8("actionSaveAs"));
391         menu_file->addAction(action_save_as_);
392
393         action_save_selection_as_->setText(tr("Save Selected &Range As..."));
394         action_save_selection_as_->setIcon(QIcon::fromTheme("document-save-as",
395                 QIcon(":/icons/document-save-as.png")));
396         action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
397         action_save_selection_as_->setObjectName(QString::fromUtf8("actionSaveSelectionAs"));
398         menu_file->addAction(action_save_selection_as_);
399
400         menu_file->addSeparator();
401
402         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
403                 device_manager_.context());
404         menu_file_export->setTitle(tr("&Export"));
405         connect(menu_file_export,
406                 SIGNAL(format_selected(std::shared_ptr<sigrok::OutputFormat>)),
407                 this, SLOT(export_file(std::shared_ptr<sigrok::OutputFormat>)));
408         menu_file->addAction(menu_file_export->menuAction());
409
410         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
411                 device_manager_.context());
412         menu_file_import->setTitle(tr("&Import"));
413         connect(menu_file_import,
414                 SIGNAL(format_selected(std::shared_ptr<sigrok::InputFormat>)),
415                 this, SLOT(import_file(std::shared_ptr<sigrok::InputFormat>)));
416         menu_file->addAction(menu_file_import->menuAction());
417
418         menu_file->addSeparator();
419
420         action_connect_->setText(tr("&Connect to Device..."));
421         action_connect_->setObjectName(QString::fromUtf8("actionConnect"));
422         menu_file->addAction(action_connect_);
423
424         menu_file->addSeparator();
425
426         action_quit_->setText(tr("&Quit"));
427         action_quit_->setIcon(QIcon::fromTheme("application-exit",
428                 QIcon(":/icons/application-exit.png")));
429         action_quit_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
430         action_quit_->setObjectName(QString::fromUtf8("actionQuit"));
431         menu_file->addAction(action_quit_);
432
433         // View Menu
434         QMenu *menu_view = new QMenu;
435         menu_view->setTitle(tr("&View"));
436
437         action_view_zoom_in_->setText(tr("Zoom &In"));
438         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
439                 QIcon(":/icons/zoom-in.png")));
440         // simply using Qt::Key_Plus shows no + in the menu
441         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
442         action_view_zoom_in_->setObjectName(
443                 QString::fromUtf8("actionViewZoomIn"));
444         menu_view->addAction(action_view_zoom_in_);
445
446         action_view_zoom_out_->setText(tr("Zoom &Out"));
447         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
448                 QIcon(":/icons/zoom-out.png")));
449         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
450         action_view_zoom_out_->setObjectName(
451                 QString::fromUtf8("actionViewZoomOut"));
452         menu_view->addAction(action_view_zoom_out_);
453
454         action_view_zoom_fit_->setCheckable(true);
455         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
456         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit",
457                 QIcon(":/icons/zoom-fit.png")));
458         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
459         action_view_zoom_fit_->setObjectName(
460                 QString::fromUtf8("actionViewZoomFit"));
461         menu_view->addAction(action_view_zoom_fit_);
462
463         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
464         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
465                 QIcon(":/icons/zoom-original.png")));
466         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
467         action_view_zoom_one_to_one_->setObjectName(
468                 QString::fromUtf8("actionViewZoomOneToOne"));
469         menu_view->addAction(action_view_zoom_one_to_one_);
470
471         menu_view->addSeparator();
472
473         action_view_sticky_scrolling_->setCheckable(true);
474         action_view_sticky_scrolling_->setChecked(true);
475         action_view_sticky_scrolling_->setShortcut(QKeySequence(Qt::Key_S));
476         action_view_sticky_scrolling_->setObjectName(
477                 QString::fromUtf8("actionViewStickyScrolling"));
478         action_view_sticky_scrolling_->setText(tr("&Sticky Scrolling"));
479         menu_view->addAction(action_view_sticky_scrolling_);
480
481         view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
482
483         menu_view->addSeparator();
484
485         action_view_coloured_bg_->setCheckable(true);
486         action_view_coloured_bg_->setChecked(true);
487         action_view_coloured_bg_->setShortcut(QKeySequence(Qt::Key_B));
488         action_view_coloured_bg_->setObjectName(
489                 QString::fromUtf8("actionViewColouredBg"));
490         action_view_coloured_bg_->setText(tr("Use &coloured backgrounds"));
491         menu_view->addAction(action_view_coloured_bg_);
492
493         view_->enable_coloured_bg(action_view_coloured_bg_->isChecked());
494
495         menu_view->addSeparator();
496
497         action_view_show_cursors_->setCheckable(true);
498         action_view_show_cursors_->setChecked(view_->cursors_shown());
499         action_view_show_cursors_->setIcon(QIcon::fromTheme("show-cursors",
500                 QIcon(":/icons/show-cursors.svg")));
501         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
502         action_view_show_cursors_->setObjectName(
503                 QString::fromUtf8("actionViewShowCursors"));
504         action_view_show_cursors_->setText(tr("Show &Cursors"));
505         menu_view->addAction(action_view_show_cursors_);
506
507         // Decoders Menu
508 #ifdef ENABLE_DECODE
509         QMenu *const menu_decoders = new QMenu;
510         menu_decoders->setTitle(tr("&Decoders"));
511
512         menu_decoders_add_->setTitle(tr("&Add"));
513         connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
514                 this, SLOT(add_decoder(srd_decoder*)));
515
516         menu_decoders->addMenu(menu_decoders_add_);
517 #endif
518
519         // Help Menu
520         QMenu *const menu_help = new QMenu;
521         menu_help->setTitle(tr("&Help"));
522
523         action_about_->setObjectName(QString::fromUtf8("actionAbout"));
524         action_about_->setText(tr("&About..."));
525         menu_help->addAction(action_about_);
526
527         menu_bar->addAction(menu_file->menuAction());
528         menu_bar->addAction(menu_view->menuAction());
529 #ifdef ENABLE_DECODE
530         menu_bar->addAction(menu_decoders->menuAction());
531 #endif
532         menu_bar->addAction(menu_help->menuAction());
533
534         setMenuBar(menu_bar);
535         QMetaObject::connectSlotsByName(this);
536
537         // Also add all actions to the main window for always-enabled hotkeys
538         for (QAction* action : menu_bar->actions())
539                 this->addAction(action);
540
541         // Setup the toolbar
542         main_bar_ = new toolbars::MainBar(session_, *this);
543
544         // Populate the device list and select the initially selected device
545         update_device_list();
546
547         addToolBar(main_bar_);
548
549         // Set the title
550         setWindowTitle(tr("PulseView"));
551
552         // Setup session_ events
553         connect(&session_, SIGNAL(capture_state_changed(int)), this,
554                 SLOT(capture_state_changed(int)));
555         connect(&session_, SIGNAL(device_selected()), this,
556                 SLOT(device_selected()));
557         connect(&session_, SIGNAL(trigger_event(util::Timestamp)), view_,
558                 SLOT(trigger_event(util::Timestamp)));
559
560         // Setup view_ events
561         connect(view_, SIGNAL(sticky_scrolling_changed(bool)), this,
562                 SLOT(sticky_scrolling_changed(bool)));
563         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)), this,
564                 SLOT(always_zoom_to_fit_changed(bool)));
565
566 }
567
568 void MainWindow::select_init_device()
569 {
570         QSettings settings;
571         map<string, string> dev_info;
572         list<string> key_list;
573         shared_ptr<devices::HardwareDevice> device;
574
575         // Re-select last used device if possible but only if it's not demo
576         settings.beginGroup("Device");
577         key_list.push_back("vendor");
578         key_list.push_back("model");
579         key_list.push_back("version");
580         key_list.push_back("serial_num");
581         key_list.push_back("connection_id");
582
583         for (string key : key_list) {
584                 const QString k = QString::fromStdString(key);
585                 if (!settings.contains(k))
586                         continue;
587
588                 const string value = settings.value(k).toString().toStdString();
589                 if (!value.empty())
590                         dev_info.insert(std::make_pair(key, value));
591         }
592
593         if (dev_info.count("model") > 0)
594                 if (dev_info.at("model").find("Demo device") == std::string::npos)
595                         device = device_manager_.find_device_from_info(dev_info);
596
597         // When we can't find a device similar to the one we used last
598         // time and there is at least one device aside from demo, use it
599         if (!device) {
600                 for (shared_ptr<devices::HardwareDevice> dev : device_manager_.devices()) {
601                         dev_info = device_manager_.get_device_info(dev);
602
603                         if (dev_info.count("model") > 0)
604                                 if (dev_info.at("model").find("Demo device") == std::string::npos) {
605                                         device = dev;
606                                         break;
607                                 }
608                 }
609         }
610
611         select_device(device);
612         update_device_list();
613
614         settings.endGroup();
615 }
616
617 void MainWindow::load_init_file(const std::string &file_name,
618         const std::string &format)
619 {
620         shared_ptr<InputFormat> input_format;
621
622         if (!format.empty()) {
623                 const map<string, shared_ptr<InputFormat> > formats =
624                         device_manager_.context()->input_formats();
625                 const auto iter = find_if(formats.begin(), formats.end(),
626                         [&](const pair<string, shared_ptr<InputFormat> > f) {
627                                 return f.first == format; });
628                 if (iter == formats.end()) {
629                         cerr << "Unexpected input format: " << format << endl;
630                         return;
631                 }
632
633                 input_format = (*iter).second;
634         }
635
636         load_file(QString::fromStdString(file_name), input_format);
637 }
638
639
640 void MainWindow::save_ui_settings()
641 {
642         QSettings settings;
643
644         map<string, string> dev_info;
645         list<string> key_list;
646
647         settings.beginGroup("MainWindow");
648         settings.setValue("state", saveState());
649         settings.setValue("geometry", saveGeometry());
650         settings.endGroup();
651
652         if (session_.device()) {
653                 settings.beginGroup("Device");
654                 key_list.push_back("vendor");
655                 key_list.push_back("model");
656                 key_list.push_back("version");
657                 key_list.push_back("serial_num");
658                 key_list.push_back("connection_id");
659
660                 dev_info = device_manager_.get_device_info(
661                         session_.device());
662
663                 for (string key : key_list) {
664                         if (dev_info.count(key))
665                                 settings.setValue(QString::fromUtf8(key.c_str()),
666                                                 QString::fromUtf8(dev_info.at(key).c_str()));
667                         else
668                                 settings.remove(QString::fromUtf8(key.c_str()));
669                 }
670
671                 settings.endGroup();
672         }
673 }
674
675 void MainWindow::restore_ui_settings()
676 {
677         QSettings settings;
678
679         settings.beginGroup("MainWindow");
680
681         if (settings.contains("geometry")) {
682                 restoreGeometry(settings.value("geometry").toByteArray());
683                 restoreState(settings.value("state").toByteArray());
684         } else
685                 resize(1000, 720);
686
687         settings.endGroup();
688 }
689
690 void MainWindow::session_error(
691         const QString text, const QString info_text)
692 {
693         QMetaObject::invokeMethod(this, "show_session_error",
694                 Qt::QueuedConnection, Q_ARG(QString, text),
695                 Q_ARG(QString, info_text));
696 }
697
698 void MainWindow::update_device_list()
699 {
700         main_bar_->update_device_list();
701 }
702
703 void MainWindow::load_file(QString file_name,
704         std::shared_ptr<sigrok::InputFormat> format,
705         const std::map<std::string, Glib::VariantBase> &options)
706 {
707         const QString errorMessage(
708                 QString("Failed to load file %1").arg(file_name));
709
710         try {
711                 if (format)
712                         session_.set_device(shared_ptr<devices::Device>(
713                                 new devices::InputFile(
714                                         device_manager_.context(),
715                                         file_name.toStdString(),
716                                         format, options)));
717                 else
718                         session_.set_device(shared_ptr<devices::Device>(
719                                 new devices::SessionFile(
720                                         device_manager_.context(),
721                                         file_name.toStdString())));
722         } catch (Error e) {
723                 show_session_error(tr("Failed to load ") + file_name, e.what());
724                 session_.set_default_device();
725                 update_device_list();
726                 return;
727         }
728
729         update_device_list();
730
731         session_.start_capture([&, errorMessage](QString infoMessage) {
732                 session_error(errorMessage, infoMessage); });
733 }
734
735 void MainWindow::closeEvent(QCloseEvent *event)
736 {
737         save_ui_settings();
738         event->accept();
739 }
740
741 void MainWindow::keyReleaseEvent(QKeyEvent *event)
742 {
743         if (event->key() == Qt::Key_Alt) {
744                 menuBar()->setHidden(!menuBar()->isHidden());
745                 menuBar()->setFocus();
746         }
747         QMainWindow::keyReleaseEvent(event);
748 }
749
750 void MainWindow::show_session_error(
751         const QString text, const QString info_text)
752 {
753         QMessageBox msg(this);
754         msg.setText(text);
755         msg.setInformativeText(info_text);
756         msg.setStandardButtons(QMessageBox::Ok);
757         msg.setIcon(QMessageBox::Warning);
758         msg.exec();
759 }
760
761 void MainWindow::on_actionOpen_triggered()
762 {
763         QSettings settings;
764         const QString dir = settings.value(SettingOpenDirectory).toString();
765
766         // Show the dialog
767         const QString file_name = QFileDialog::getOpenFileName(
768                 this, tr("Open File"), dir, tr(
769                         "Sigrok Sessions (*.sr);;"
770                         "All Files (*.*)"));
771
772         if (!file_name.isEmpty()) {
773                 load_file(file_name);
774
775                 const QString abs_path = QFileInfo(file_name).absolutePath();
776                 settings.setValue(SettingOpenDirectory, abs_path);
777         }
778 }
779
780 void MainWindow::on_actionSaveAs_triggered()
781 {
782         export_file(device_manager_.context()->output_formats()["srzip"]);
783 }
784
785 void MainWindow::on_actionSaveSelectionAs_triggered()
786 {
787         export_file(device_manager_.context()->output_formats()["srzip"], true);
788 }
789
790 void MainWindow::on_actionConnect_triggered()
791 {
792         // Stop any currently running capture session
793         session_.stop_capture();
794
795         dialogs::Connect dlg(this, device_manager_);
796
797         // If the user selected a device, select it in the device list. Select the
798         // current device otherwise.
799         if (dlg.exec())
800                 select_device(dlg.get_selected_device());
801
802         update_device_list();
803 }
804
805 void MainWindow::on_actionQuit_triggered()
806 {
807         close();
808 }
809
810 void MainWindow::on_actionViewZoomIn_triggered()
811 {
812         view_->zoom(1);
813 }
814
815 void MainWindow::on_actionViewZoomOut_triggered()
816 {
817         view_->zoom(-1);
818 }
819
820 void MainWindow::on_actionViewZoomFit_triggered()
821 {
822         view_->zoom_fit(action_view_zoom_fit_->isChecked());
823 }
824
825 void MainWindow::on_actionViewZoomOneToOne_triggered()
826 {
827         view_->zoom_one_to_one();
828 }
829
830 void MainWindow::on_actionViewStickyScrolling_triggered()
831 {
832         view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
833 }
834
835 void MainWindow::on_actionViewColouredBg_triggered()
836 {
837         view_->enable_coloured_bg(action_view_coloured_bg_->isChecked());
838 }
839
840 void MainWindow::on_actionViewShowCursors_triggered()
841 {
842         assert(view_);
843
844         const bool show = !view_->cursors_shown();
845         if (show)
846                 view_->centre_cursors();
847
848         view_->show_cursors(show);
849 }
850
851 void MainWindow::on_actionAbout_triggered()
852 {
853         dialogs::About dlg(device_manager_.context(), this);
854         dlg.exec();
855 }
856
857 void MainWindow::sticky_scrolling_changed(bool state)
858 {
859         action_view_sticky_scrolling_->setChecked(state);
860 }
861
862 void MainWindow::always_zoom_to_fit_changed(bool state)
863 {
864         action_view_zoom_fit_->setChecked(state);
865 }
866
867 void MainWindow::add_decoder(srd_decoder *decoder)
868 {
869 #ifdef ENABLE_DECODE
870         assert(decoder);
871         session_.add_decoder(decoder);
872 #else
873         (void)decoder;
874 #endif
875 }
876
877 void MainWindow::capture_state_changed(int state)
878 {
879         main_bar_->set_capture_state((pv::Session::capture_state)state);
880 }
881
882 void MainWindow::device_selected()
883 {
884         // Set the title to include the device/file name
885         const shared_ptr<devices::Device> device = session_.device();
886
887         if (!device) {
888                 main_bar_->reset_device_selector();
889                 return;
890         }
891
892         const string display_name = device->display_name(device_manager_);
893         setWindowTitle(tr("%1 - PulseView").arg(display_name.c_str()));
894 }
895
896 } // namespace pv