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1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2012-2015 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 #include <extdef.h>
21
22 #include <algorithm>
23 #include <cassert>
24
25 #include <QAction>
26 #include <QDebug>
27 #include <QFileDialog>
28 #include <QHelpEvent>
29 #include <QMenu>
30 #include <QMessageBox>
31 #include <QSettings>
32 #include <QToolTip>
33
34 #include "mainbar.hpp"
35
36 #include <boost/algorithm/string/join.hpp>
37
38 #include <pv/devicemanager.hpp>
39 #include <pv/devices/hardwaredevice.hpp>
40 #include <pv/devices/inputfile.hpp>
41 #include <pv/devices/sessionfile.hpp>
42 #include <pv/dialogs/connect.hpp>
43 #include <pv/dialogs/inputoutputoptions.hpp>
44 #include <pv/dialogs/storeprogress.hpp>
45 #include <pv/mainwindow.hpp>
46 #include <pv/popups/deviceoptions.hpp>
47 #include <pv/popups/channels.hpp>
48 #include <pv/util.hpp>
49 #include <pv/view/view.hpp>
50 #include <pv/widgets/exportmenu.hpp>
51 #include <pv/widgets/importmenu.hpp>
52 #ifdef ENABLE_DECODE
53 #include <pv/widgets/decodermenu.hpp>
54 #endif
55
56 #include <libsigrokcxx/libsigrokcxx.hpp>
57
58 using std::back_inserter;
59 using std::cerr;
60 using std::copy;
61 using std::endl;
62 using std::list;
63 using std::make_pair;
64 using std::map;
65 using std::max;
66 using std::min;
67 using std::pair;
68 using std::set;
69 using std::shared_ptr;
70 using std::string;
71 using std::vector;
72
73 using sigrok::Capability;
74 using sigrok::ConfigKey;
75 using sigrok::Error;
76 using sigrok::InputFormat;
77 using sigrok::OutputFormat;
78
79 using boost::algorithm::join;
80
81 namespace pv {
82 namespace toolbars {
83
84 const uint64_t MainBar::MinSampleCount = 100ULL;
85 const uint64_t MainBar::MaxSampleCount = 1000000000000ULL;
86 const uint64_t MainBar::DefaultSampleCount = 1000000;
87
88 const char *MainBar::SettingOpenDirectory = "MainWindow/OpenDirectory";
89 const char *MainBar::SettingSaveDirectory = "MainWindow/SaveDirectory";
90
91 MainBar::MainBar(Session &session, QWidget *parent,
92                 pv::views::TraceView::View *view) :
93         StandardBar(session, parent, view, false),
94         action_new_view_(new QAction(this)),
95         action_open_(new QAction(this)),
96         action_save_as_(new QAction(this)),
97         action_save_selection_as_(new QAction(this)),
98         action_connect_(new QAction(this)),
99         open_button_(new QToolButton()),
100         save_button_(new QToolButton()),
101         device_selector_(parent, session.device_manager(),
102                 action_connect_),
103         configure_button_(this),
104         configure_button_action_(nullptr),
105         channels_button_(this),
106         channels_button_action_(nullptr),
107         sample_count_(" samples", this),
108         sample_rate_("Hz", this),
109         updating_sample_rate_(false),
110         updating_sample_count_(false),
111         sample_count_supported_(false)
112 #ifdef ENABLE_DECODE
113         , add_decoder_button_(new QToolButton()),
114         menu_decoders_add_(new pv::widgets::DecoderMenu(this, true))
115 #endif
116 {
117         setObjectName(QString::fromUtf8("MainBar"));
118
119         // Actions
120         action_new_view_->setText(tr("New &View"));
121         action_new_view_->setIcon(QIcon::fromTheme("window-new",
122                 QIcon(":/icons/window-new.png")));
123         connect(action_new_view_, SIGNAL(triggered(bool)),
124                 this, SLOT(on_actionNewView_triggered()));
125
126         action_open_->setText(tr("&Open..."));
127         action_open_->setIcon(QIcon::fromTheme("document-open",
128                 QIcon(":/icons/document-open.png")));
129         action_open_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
130         connect(action_open_, SIGNAL(triggered(bool)),
131                 this, SLOT(on_actionOpen_triggered()));
132
133         action_save_as_->setText(tr("&Save As..."));
134         action_save_as_->setIcon(QIcon::fromTheme("document-save-as",
135                 QIcon(":/icons/document-save-as.png")));
136         action_save_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
137         connect(action_save_as_, SIGNAL(triggered(bool)),
138                 this, SLOT(on_actionSaveAs_triggered()));
139
140         action_save_selection_as_->setText(tr("Save Selected &Range As..."));
141         action_save_selection_as_->setIcon(QIcon::fromTheme("document-save-as",
142                 QIcon(":/icons/document-save-as.png")));
143         action_save_selection_as_->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
144         connect(action_save_selection_as_, SIGNAL(triggered(bool)),
145                 this, SLOT(on_actionSaveSelectionAs_triggered()));
146
147         widgets::ExportMenu *menu_file_export = new widgets::ExportMenu(this,
148                 session.device_manager().context());
149         menu_file_export->setTitle(tr("&Export"));
150         connect(menu_file_export,
151                 SIGNAL(format_selected(shared_ptr<sigrok::OutputFormat>)),
152                 this, SLOT(export_file(shared_ptr<sigrok::OutputFormat>)));
153
154         widgets::ImportMenu *menu_file_import = new widgets::ImportMenu(this,
155                 session.device_manager().context());
156         menu_file_import->setTitle(tr("&Import"));
157         connect(menu_file_import,
158                 SIGNAL(format_selected(shared_ptr<sigrok::InputFormat>)),
159                 this, SLOT(import_file(shared_ptr<sigrok::InputFormat>)));
160
161         action_connect_->setText(tr("&Connect to Device..."));
162         connect(action_connect_, SIGNAL(triggered(bool)),
163                 this, SLOT(on_actionConnect_triggered()));
164
165         // Open button
166         widgets::ImportMenu *import_menu = new widgets::ImportMenu(this,
167                 session.device_manager().context(), action_open_);
168         connect(import_menu,
169                 SIGNAL(format_selected(shared_ptr<sigrok::InputFormat>)),
170                 this,
171                 SLOT(import_file(shared_ptr<sigrok::InputFormat>)));
172
173         open_button_->setMenu(import_menu);
174         open_button_->setDefaultAction(action_open_);
175         open_button_->setPopupMode(QToolButton::MenuButtonPopup);
176
177         // Save button
178         vector<QAction *> open_actions;
179         open_actions.push_back(action_save_as_);
180         open_actions.push_back(action_save_selection_as_);
181
182         widgets::ExportMenu *export_menu = new widgets::ExportMenu(this,
183                 session.device_manager().context(),
184                 open_actions);
185         connect(export_menu,
186                 SIGNAL(format_selected(shared_ptr<sigrok::OutputFormat>)),
187                 this,
188                 SLOT(export_file(shared_ptr<sigrok::OutputFormat>)));
189
190         save_button_->setMenu(export_menu);
191         save_button_->setDefaultAction(action_save_as_);
192         save_button_->setPopupMode(QToolButton::MenuButtonPopup);
193
194         // Device selector menu
195         connect(&device_selector_, SIGNAL(device_selected()),
196                 this, SLOT(on_device_selected()));
197
198         // Setup the decoder button
199 #ifdef ENABLE_DECODE
200         menu_decoders_add_->setTitle(tr("&Add"));
201         connect(menu_decoders_add_, SIGNAL(decoder_selected(srd_decoder*)),
202                 this, SLOT(add_decoder(srd_decoder*)));
203
204         add_decoder_button_->setIcon(QIcon::fromTheme("add-decoder",
205                 QIcon(":/icons/add-decoder.svg")));
206         add_decoder_button_->setPopupMode(QToolButton::InstantPopup);
207         add_decoder_button_->setMenu(menu_decoders_add_);
208 #endif
209
210         connect(&sample_count_, SIGNAL(value_changed()),
211                 this, SLOT(on_sample_count_changed()));
212         connect(&sample_rate_, SIGNAL(value_changed()),
213                 this, SLOT(on_sample_rate_changed()));
214
215         sample_count_.show_min_max_step(0, UINT64_MAX, 1);
216
217         set_capture_state(pv::Session::Stopped);
218
219         configure_button_.setToolTip(tr("Configure Device"));
220         configure_button_.setIcon(QIcon::fromTheme("configure",
221                 QIcon(":/icons/configure.png")));
222
223         channels_button_.setToolTip(tr("Configure Channels"));
224         channels_button_.setIcon(QIcon::fromTheme("channels",
225                 QIcon(":/icons/channels.svg")));
226
227         add_toolbar_widgets();
228
229         sample_count_.installEventFilter(this);
230         sample_rate_.installEventFilter(this);
231
232         // Setup session_ events
233         connect(&session_, SIGNAL(capture_state_changed(int)),
234                 this, SLOT(on_capture_state_changed(int)));
235         connect(&session, SIGNAL(device_changed()),
236                 this, SLOT(on_device_changed()));
237
238         update_device_list();
239 }
240
241 void MainBar::update_device_list()
242 {
243         DeviceManager &mgr = session_.device_manager();
244         shared_ptr<devices::Device> selected_device = session_.device();
245         list< shared_ptr<devices::Device> > devs;
246
247         copy(mgr.devices().begin(), mgr.devices().end(), back_inserter(devs));
248
249         if (std::find(devs.begin(), devs.end(), selected_device) == devs.end())
250                 devs.push_back(selected_device);
251
252         device_selector_.set_device_list(devs, selected_device);
253         update_device_config_widgets();
254 }
255
256 void MainBar::set_capture_state(pv::Session::capture_state state)
257 {
258         bool ui_enabled = (state == pv::Session::Stopped) ? true : false;
259
260         device_selector_.setEnabled(ui_enabled);
261         configure_button_.setEnabled(ui_enabled);
262         channels_button_.setEnabled(ui_enabled);
263         sample_count_.setEnabled(ui_enabled);
264         sample_rate_.setEnabled(ui_enabled);
265 }
266
267 void MainBar::reset_device_selector()
268 {
269         device_selector_.reset();
270 }
271
272 QAction* MainBar::action_open() const
273 {
274         return action_open_;
275 }
276
277 QAction* MainBar::action_save_as() const
278 {
279         return action_save_as_;
280 }
281
282 QAction* MainBar::action_save_selection_as() const
283 {
284         return action_save_selection_as_;
285 }
286
287 QAction* MainBar::action_connect() const
288 {
289         return action_connect_;
290 }
291
292 void MainBar::update_sample_rate_selector()
293 {
294         Glib::VariantContainerBase gvar_dict;
295         GVariant *gvar_list;
296         const uint64_t *elements = nullptr;
297         gsize num_elements;
298         map< const ConfigKey*, set<Capability> > keys;
299
300         if (updating_sample_rate_) {
301                 sample_rate_.show_none();
302                 return;
303         }
304
305         const shared_ptr<devices::Device> device =
306                 device_selector_.selected_device();
307         if (!device)
308                 return;
309
310         assert(!updating_sample_rate_);
311         updating_sample_rate_ = true;
312
313         const shared_ptr<sigrok::Device> sr_dev = device->device();
314
315         if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
316                 gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
317         } else {
318                 sample_rate_.show_none();
319                 updating_sample_rate_ = false;
320                 return;
321         }
322
323         if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
324                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
325                 elements = (const uint64_t *)g_variant_get_fixed_array(
326                                 gvar_list, &num_elements, sizeof(uint64_t));
327
328                 const uint64_t min = elements[0];
329                 const uint64_t max = elements[1];
330                 const uint64_t step = elements[2];
331
332                 g_variant_unref(gvar_list);
333
334                 assert(min > 0);
335                 assert(max > 0);
336                 assert(max > min);
337                 assert(step > 0);
338
339                 if (step == 1)
340                         sample_rate_.show_125_list(min, max);
341                 else {
342                         // When the step is not 1, we cam't make a 1-2-5-10
343                         // list of sample rates, because we may not be able to
344                         // make round numbers. Therefore in this case, show a
345                         // spin box.
346                         sample_rate_.show_min_max_step(min, max, step);
347                 }
348         } else if ((gvar_list = g_variant_lookup_value(gvar_dict.gobj(),
349                         "samplerates", G_VARIANT_TYPE("at")))) {
350                 elements = (const uint64_t *)g_variant_get_fixed_array(
351                                 gvar_list, &num_elements, sizeof(uint64_t));
352                 sample_rate_.show_list(elements, num_elements);
353                 g_variant_unref(gvar_list);
354         }
355         updating_sample_rate_ = false;
356
357         update_sample_rate_selector_value();
358 }
359
360 void MainBar::update_sample_rate_selector_value()
361 {
362         if (updating_sample_rate_)
363                 return;
364
365         const shared_ptr<devices::Device> device =
366                 device_selector_.selected_device();
367         if (!device)
368                 return;
369
370         try {
371                 auto gvar = device->device()->config_get(ConfigKey::SAMPLERATE);
372                 uint64_t samplerate =
373                         Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
374                 assert(!updating_sample_rate_);
375                 updating_sample_rate_ = true;
376                 sample_rate_.set_value(samplerate);
377                 updating_sample_rate_ = false;
378         } catch (Error error) {
379                 qDebug() << "WARNING: Failed to get value of sample rate";
380                 return;
381         }
382 }
383
384 void MainBar::update_sample_count_selector()
385 {
386         if (updating_sample_count_)
387                 return;
388
389         const shared_ptr<devices::Device> device =
390                 device_selector_.selected_device();
391         if (!device)
392                 return;
393
394         const shared_ptr<sigrok::Device> sr_dev = device->device();
395
396         assert(!updating_sample_count_);
397         updating_sample_count_ = true;
398
399         if (!sample_count_supported_) {
400                 sample_count_.show_none();
401                 updating_sample_count_ = false;
402                 return;
403         }
404
405         uint64_t sample_count = sample_count_.value();
406         uint64_t min_sample_count = 0;
407         uint64_t max_sample_count = MaxSampleCount;
408         bool default_count_set = false;
409
410         if (sample_count == 0) {
411                 sample_count = DefaultSampleCount;
412                 default_count_set = true;
413         }
414
415         if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::LIST)) {
416                 auto gvar = sr_dev->config_list(ConfigKey::LIMIT_SAMPLES);
417                 if (gvar.gobj())
418                         g_variant_get(gvar.gobj(), "(tt)",
419                                 &min_sample_count, &max_sample_count);
420         }
421
422         min_sample_count = min(max(min_sample_count, MinSampleCount),
423                 max_sample_count);
424
425         sample_count_.show_125_list(
426                 min_sample_count, max_sample_count);
427
428         if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::GET)) {
429                 auto gvar = sr_dev->config_get(ConfigKey::LIMIT_SAMPLES);
430                 sample_count = g_variant_get_uint64(gvar.gobj());
431                 if (sample_count == 0) {
432                         sample_count = DefaultSampleCount;
433                         default_count_set = true;
434                 }
435                 sample_count = min(max(sample_count, MinSampleCount),
436                         max_sample_count);
437         }
438
439         sample_count_.set_value(sample_count);
440
441         updating_sample_count_ = false;
442
443         // If we show the default rate then make sure the device uses the same
444         if (default_count_set)
445                 commit_sample_count();
446 }
447
448 void MainBar::update_device_config_widgets()
449 {
450         using namespace pv::popups;
451
452         const shared_ptr<devices::Device> device =
453                 device_selector_.selected_device();
454
455         // Hide the widgets if no device is selected
456         channels_button_action_->setVisible(!!device);
457         if (!device) {
458                 configure_button_action_->setVisible(false);
459                 sample_count_.show_none();
460                 sample_rate_.show_none();
461                 return;
462         }
463
464         const shared_ptr<sigrok::Device> sr_dev = device->device();
465         if (!sr_dev)
466                 return;
467
468         // Update the configure popup
469         DeviceOptions *const opts = new DeviceOptions(sr_dev, this);
470         configure_button_action_->setVisible(
471                 !opts->binding().properties().empty());
472         configure_button_.set_popup(opts);
473
474         // Update the channels popup
475         Channels *const channels = new Channels(session_, this);
476         channels_button_.set_popup(channels);
477
478         // Update supported options.
479         sample_count_supported_ = false;
480
481         if (sr_dev->config_check(ConfigKey::LIMIT_SAMPLES, Capability::SET))
482                 sample_count_supported_ = true;
483
484         if (sr_dev->config_check(ConfigKey::LIMIT_FRAMES, Capability::SET)) {
485                 sr_dev->config_set(ConfigKey::LIMIT_FRAMES,
486                         Glib::Variant<guint64>::create(1));
487                         on_config_changed();
488         }
489
490         // Add notification of reconfigure events
491         disconnect(this, SLOT(on_config_changed()));
492         connect(&opts->binding(), SIGNAL(config_changed()),
493                 this, SLOT(on_config_changed()));
494
495         // Update sweep timing widgets.
496         update_sample_count_selector();
497         update_sample_rate_selector();
498 }
499
500 void MainBar::commit_sample_rate()
501 {
502         uint64_t sample_rate = 0;
503
504         const shared_ptr<devices::Device> device =
505                 device_selector_.selected_device();
506         if (!device)
507                 return;
508
509         const shared_ptr<sigrok::Device> sr_dev = device->device();
510
511         sample_rate = sample_rate_.value();
512         if (sample_rate == 0)
513                 return;
514
515         try {
516                 sr_dev->config_set(ConfigKey::SAMPLERATE,
517                         Glib::Variant<guint64>::create(sample_rate));
518                 update_sample_rate_selector();
519         } catch (Error error) {
520                 qDebug() << "Failed to configure samplerate.";
521                 return;
522         }
523
524         // Devices with built-in memory might impose limits on certain
525         // configurations, so let's check what sample count the driver
526         // lets us use now.
527         update_sample_count_selector();
528 }
529
530 void MainBar::commit_sample_count()
531 {
532         uint64_t sample_count = 0;
533
534         const shared_ptr<devices::Device> device =
535                 device_selector_.selected_device();
536         if (!device)
537                 return;
538
539         const shared_ptr<sigrok::Device> sr_dev = device->device();
540
541         sample_count = sample_count_.value();
542         if (sample_count_supported_) {
543                 try {
544                         sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
545                                 Glib::Variant<guint64>::create(sample_count));
546                         update_sample_count_selector();
547                 } catch (Error error) {
548                         qDebug() << "Failed to configure sample count.";
549                         return;
550                 }
551         }
552
553         // Devices with built-in memory might impose limits on certain
554         // configurations, so let's check what sample rate the driver
555         // lets us use now.
556         update_sample_rate_selector();
557 }
558
559 void MainBar::session_error(const QString text, const QString info_text)
560 {
561         QMetaObject::invokeMethod(this, "show_session_error",
562                 Qt::QueuedConnection, Q_ARG(QString, text),
563                 Q_ARG(QString, info_text));
564 }
565
566 void MainBar::show_session_error(const QString text, const QString info_text)
567 {
568         QMessageBox msg(this);
569         msg.setText(text);
570         msg.setInformativeText(info_text);
571         msg.setStandardButtons(QMessageBox::Ok);
572         msg.setIcon(QMessageBox::Warning);
573         msg.exec();
574 }
575
576 void MainBar::add_decoder(srd_decoder *decoder)
577 {
578 #ifdef ENABLE_DECODE
579         assert(decoder);
580         session_.add_decoder(decoder);
581 #else
582         (void)decoder;
583 #endif
584 }
585
586 void MainBar::export_file(shared_ptr<OutputFormat> format,
587         bool selection_only)
588 {
589         using pv::dialogs::StoreProgress;
590
591         // Stop any currently running capture session
592         session_.stop_capture();
593
594         QSettings settings;
595         const QString dir = settings.value(SettingSaveDirectory).toString();
596
597         pair<uint64_t, uint64_t> sample_range;
598
599         // Selection only? Verify that the cursors are active and fetch their values
600         if (selection_only) {
601                 views::TraceView::View *trace_view =
602                         qobject_cast<views::TraceView::View*>(session_.main_view().get());
603
604                 if (!trace_view->cursors()->enabled()) {
605                         show_session_error(tr("Missing Cursors"), tr("You need to set the " \
606                                         "cursors before you can save the data enclosed by them " \
607                                         "to a session file (e.g. using ALT-V - Show Cursors)."));
608                         return;
609                 }
610
611                 const double samplerate = session_.get_samplerate();
612
613                 const pv::util::Timestamp& start_time = trace_view->cursors()->first()->time();
614                 const pv::util::Timestamp& end_time = trace_view->cursors()->second()->time();
615
616                 const uint64_t start_sample = (uint64_t)max(
617                         (double)0, start_time.convert_to<double>() * samplerate);
618                 const uint64_t end_sample = (uint64_t)max(
619                         (double)0, end_time.convert_to<double>() * samplerate);
620
621                 sample_range = make_pair(start_sample, end_sample);
622         } else {
623                 sample_range = make_pair(0, 0);
624         }
625
626         // Construct the filter
627         const vector<string> exts = format->extensions();
628         QString filter = tr("%1 files ").arg(
629                 QString::fromStdString(format->description()));
630
631         if (exts.empty())
632                 filter += "(*.*)";
633         else
634                 filter += QString("(*.%1);;%2 (*.*)").arg(
635                         QString::fromStdString(join(exts, ", *.")),
636                         tr("All Files"));
637
638         // Show the file dialog
639         const QString file_name = QFileDialog::getSaveFileName(
640                 this, tr("Save File"), dir, filter);
641
642         if (file_name.isEmpty())
643                 return;
644
645         const QString abs_path = QFileInfo(file_name).absolutePath();
646         settings.setValue(SettingSaveDirectory, abs_path);
647
648         // Show the options dialog
649         map<string, Glib::VariantBase> options;
650         if (!format->options().empty()) {
651                 dialogs::InputOutputOptions dlg(
652                         tr("Export %1").arg(QString::fromStdString(
653                                 format->description())),
654                         format->options(), this);
655                 if (!dlg.exec())
656                         return;
657                 options = dlg.options();
658         }
659
660         if (!selection_only)
661                 session_.set_name(QFileInfo(file_name).fileName());
662
663         StoreProgress *dlg = new StoreProgress(file_name, format, options,
664                 sample_range, session_, this);
665         dlg->run();
666 }
667
668 void MainBar::import_file(shared_ptr<InputFormat> format)
669 {
670         assert(format);
671
672         QSettings settings;
673         const QString dir = settings.value(SettingOpenDirectory).toString();
674
675         // Construct the filter
676         const vector<string> exts = format->extensions();
677         const QString filter = exts.empty() ? "" :
678                 tr("%1 files (*.%2)").arg(
679                         QString::fromStdString(format->description()),
680                         QString::fromStdString(join(exts, ", *.")));
681
682         // Show the file dialog
683         const QString file_name = QFileDialog::getOpenFileName(
684                 this, tr("Import File"), dir, tr(
685                         "%1 files (*.*);;All Files (*.*)").arg(
686                         QString::fromStdString(format->description())));
687
688         if (file_name.isEmpty())
689                 return;
690
691         // Show the options dialog
692         map<string, Glib::VariantBase> options;
693         if (!format->options().empty()) {
694                 dialogs::InputOutputOptions dlg(
695                         tr("Import %1").arg(QString::fromStdString(
696                                 format->description())),
697                         format->options(), this);
698                 if (!dlg.exec())
699                         return;
700                 options = dlg.options();
701         }
702
703         session_.load_file(file_name, format, options);
704
705         const QString abs_path = QFileInfo(file_name).absolutePath();
706         settings.setValue(SettingOpenDirectory, abs_path);
707 }
708
709 void MainBar::on_device_selected()
710 {
711         shared_ptr<devices::Device> device = device_selector_.selected_device();
712         if (!device) {
713                 reset_device_selector();
714                 return;
715         }
716
717         session_.select_device(device);
718 }
719
720 void MainBar::on_device_changed()
721 {
722         update_device_list();
723         update_device_config_widgets();
724 }
725
726 void MainBar::on_capture_state_changed(int state)
727 {
728         set_capture_state((pv::Session::capture_state)state);
729 }
730
731 void MainBar::on_sample_count_changed()
732 {
733         if (!updating_sample_count_)
734                 commit_sample_count();
735 }
736
737 void MainBar::on_sample_rate_changed()
738 {
739         if (!updating_sample_rate_)
740                 commit_sample_rate();
741 }
742
743 void MainBar::on_config_changed()
744 {
745         commit_sample_count();
746         commit_sample_rate();   
747 }
748
749 void MainBar::on_actionNewView_triggered()
750 {
751         new_view(&session_);
752 }
753
754 void MainBar::on_actionOpen_triggered()
755 {
756         QSettings settings;
757         const QString dir = settings.value(SettingOpenDirectory).toString();
758
759         // Show the dialog
760         const QString file_name = QFileDialog::getOpenFileName(
761                 this, tr("Open File"), dir, tr(
762                         "Sigrok Sessions (*.sr);;"
763                         "All Files (*.*)"));
764
765         if (!file_name.isEmpty()) {
766                 session_.load_file(file_name);
767
768                 const QString abs_path = QFileInfo(file_name).absolutePath();
769                 settings.setValue(SettingOpenDirectory, abs_path);
770         }
771 }
772
773 void MainBar::on_actionSaveAs_triggered()
774 {
775         export_file(session_.device_manager().context()->output_formats()["srzip"]);
776 }
777
778 void MainBar::on_actionSaveSelectionAs_triggered()
779 {
780         export_file(session_.device_manager().context()->output_formats()["srzip"], true);
781 }
782
783 void MainBar::on_actionConnect_triggered()
784 {
785         // Stop any currently running capture session
786         session_.stop_capture();
787
788         dialogs::Connect dlg(this, session_.device_manager());
789
790         // If the user selected a device, select it in the device list. Select the
791         // current device otherwise.
792         if (dlg.exec())
793                 session_.select_device(dlg.get_selected_device());
794
795         update_device_list();
796 }
797
798 void MainBar::add_toolbar_widgets()
799 {
800         addAction(action_new_view_);
801         addSeparator();
802         addWidget(open_button_);
803         addWidget(save_button_);
804         addSeparator();
805
806         StandardBar::add_toolbar_widgets();
807
808         addWidget(&device_selector_);
809         configure_button_action_ = addWidget(&configure_button_);
810         channels_button_action_ = addWidget(&channels_button_);
811         addWidget(&sample_count_);
812         addWidget(&sample_rate_);
813 #ifdef ENABLE_DECODE
814         addSeparator();
815         addWidget(add_decoder_button_);
816 #endif
817 }
818
819 bool MainBar::eventFilter(QObject *watched, QEvent *event)
820 {
821         if (sample_count_supported_ && (watched == &sample_count_ ||
822                         watched == &sample_rate_) &&
823                         (event->type() == QEvent::ToolTip)) {
824                 auto sec = pv::util::Timestamp(sample_count_.value()) / sample_rate_.value();
825                 QHelpEvent *help_event = static_cast<QHelpEvent*>(event);
826
827                 QString str = tr("Total sampling time: %1").arg(
828                         pv::util::format_time_si(sec, pv::util::SIPrefix::unspecified, 0, "s", false));
829                 QToolTip::showText(help_event->globalPos(), str);
830
831                 return true;
832         }
833
834         return false;
835 }
836
837 } // namespace toolbars
838 } // namespace pv