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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 <QAction> | |
31 | #include <QApplication> | |
32 | #include <QCloseEvent> | |
33 | #include <QDockWidget> | |
34 | #include <QSettings> | |
35 | #include <QWidget> | |
36 | ||
37 | #include "mainwindow.hpp" | |
38 | ||
39 | #include "devicemanager.hpp" | |
40 | #include "util.hpp" | |
41 | #include "devices/hardwaredevice.hpp" | |
42 | #include "dialogs/about.hpp" | |
43 | #include "toolbars/mainbar.hpp" | |
44 | #include "view/view.hpp" | |
45 | ||
46 | #include <stdint.h> | |
47 | #include <stdarg.h> | |
48 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
49 | ||
50 | using std::dynamic_pointer_cast; | |
51 | using std::list; | |
52 | using std::make_shared; | |
53 | using std::map; | |
54 | using std::shared_ptr; | |
55 | using std::string; | |
56 | ||
57 | namespace pv { | |
58 | ||
59 | namespace view { | |
60 | class ViewItem; | |
61 | } | |
62 | ||
63 | using toolbars::MainBar; | |
64 | ||
65 | const QString MainWindow::WindowTitle = tr("PulseView"); | |
66 | ||
67 | MainWindow::MainWindow(DeviceManager &device_manager, | |
68 | string open_file_name, string open_file_format, | |
69 | QWidget *parent) : | |
70 | QMainWindow(parent), | |
71 | device_manager_(device_manager), | |
72 | session_selector_(this), | |
73 | action_view_sticky_scrolling_(new QAction(this)), | |
74 | action_view_coloured_bg_(new QAction(this)), | |
75 | action_about_(new QAction(this)) | |
76 | { | |
77 | qRegisterMetaType<util::Timestamp>("util::Timestamp"); | |
78 | ||
79 | setup_ui(); | |
80 | restore_ui_settings(); | |
81 | ||
82 | if (!open_file_name.empty()) { | |
83 | shared_ptr<Session> session = add_session(); | |
84 | session->main_bar()->load_init_file(open_file_name, open_file_format); | |
85 | } | |
86 | ||
87 | // Add empty default session if there aren't any sessions | |
88 | if (sessions_.size() == 0) { | |
89 | shared_ptr<Session> session = add_session(); | |
90 | ||
91 | map<string, string> dev_info; | |
92 | shared_ptr<devices::HardwareDevice> other_device, demo_device; | |
93 | ||
94 | // Use any available device that's not demo | |
95 | for (shared_ptr<devices::HardwareDevice> dev : device_manager_.devices()) { | |
96 | if (dev->hardware_device()->driver()->name() == "demo") { | |
97 | demo_device = dev; | |
98 | } else { | |
99 | other_device = dev; | |
100 | } | |
101 | } | |
102 | ||
103 | // ...and if there isn't any, just use demo then | |
104 | session->main_bar()->select_device(other_device ? | |
105 | other_device : demo_device); | |
106 | } | |
107 | } | |
108 | ||
109 | MainWindow::~MainWindow() | |
110 | { | |
111 | while (!sessions_.empty()) | |
112 | remove_session(sessions_.front()); | |
113 | } | |
114 | ||
115 | QAction* MainWindow::action_view_sticky_scrolling() const | |
116 | { | |
117 | return action_view_sticky_scrolling_; | |
118 | } | |
119 | ||
120 | QAction* MainWindow::action_view_coloured_bg() const | |
121 | { | |
122 | return action_view_coloured_bg_; | |
123 | } | |
124 | ||
125 | QAction* MainWindow::action_about() const | |
126 | { | |
127 | return action_about_; | |
128 | } | |
129 | ||
130 | shared_ptr<views::ViewBase> MainWindow::get_active_view() const | |
131 | { | |
132 | // If there's only one view, use it... | |
133 | if (view_docks_.size() == 1) | |
134 | return view_docks_.begin()->second; | |
135 | ||
136 | // ...otherwise find the dock widget the widget with focus is contained in | |
137 | QObject *w = QApplication::focusWidget(); | |
138 | QDockWidget *dock = 0; | |
139 | ||
140 | while (w) { | |
141 | dock = qobject_cast<QDockWidget*>(w); | |
142 | if (dock) | |
143 | break; | |
144 | w = w->parent(); | |
145 | } | |
146 | ||
147 | // Get the view contained in the dock widget | |
148 | for (auto entry : view_docks_) | |
149 | if (entry.first == dock) | |
150 | return entry.second; | |
151 | ||
152 | return nullptr; | |
153 | } | |
154 | ||
155 | shared_ptr<views::ViewBase> MainWindow::add_view(const QString &title, | |
156 | views::ViewType type, Session &session) | |
157 | { | |
158 | QMainWindow *main_window; | |
159 | for (auto entry : session_windows_) | |
160 | if (entry.first.get() == &session) | |
161 | main_window = entry.second; | |
162 | ||
163 | assert(main_window); | |
164 | ||
165 | if (type == views::ViewTypeTrace) { | |
166 | QDockWidget* dock = new QDockWidget(title, main_window); | |
167 | dock->setObjectName(title); | |
168 | main_window->addDockWidget(Qt::TopDockWidgetArea, dock); | |
169 | ||
170 | // Insert a QMainWindow into the dock widget to allow for a tool bar | |
171 | QMainWindow *dock_main = new QMainWindow(dock); | |
172 | dock_main->setWindowFlags(Qt::Widget); // Remove Qt::Window flag | |
173 | ||
174 | shared_ptr<views::TraceView::View> v = | |
175 | make_shared<views::TraceView::View>(session, dock_main); | |
176 | view_docks_[dock] = v; | |
177 | session.register_view(v); | |
178 | ||
179 | dock_main->setCentralWidget(v.get()); | |
180 | dock->setWidget(dock_main); | |
181 | ||
182 | dock->setFeatures(QDockWidget::DockWidgetMovable | | |
183 | QDockWidget::DockWidgetFloatable | QDockWidget::DockWidgetClosable); | |
184 | ||
185 | QAbstractButton *close_btn = | |
186 | dock->findChildren<QAbstractButton*> | |
187 | ("qt_dockwidget_closebutton").front(); | |
188 | ||
189 | connect(close_btn, SIGNAL(clicked(bool)), | |
190 | this, SLOT(on_view_close_clicked())); | |
191 | ||
192 | if (type == views::ViewTypeTrace) { | |
193 | connect(&session, SIGNAL(trigger_event(util::Timestamp)), | |
194 | qobject_cast<views::ViewBase*>(v.get()), | |
195 | SLOT(trigger_event(util::Timestamp))); | |
196 | ||
197 | v->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked()); | |
198 | v->enable_coloured_bg(action_view_coloured_bg_->isChecked()); | |
199 | ||
200 | shared_ptr<MainBar> main_bar = session.main_bar(); | |
201 | if (!main_bar) { | |
202 | main_bar = make_shared<MainBar>(session, *this); | |
203 | dock_main->addToolBar(main_bar.get()); | |
204 | session.set_main_bar(main_bar); | |
205 | ||
206 | connect(main_bar.get(), SIGNAL(new_session()), | |
207 | this, SLOT(on_new_session())); | |
208 | connect(main_bar.get(), SIGNAL(new_view(Session*)), | |
209 | this, SLOT(on_new_view(Session*))); | |
210 | } | |
211 | main_bar->action_view_show_cursors()->setChecked(v->cursors_shown()); | |
212 | ||
213 | connect(v.get(), SIGNAL(always_zoom_to_fit_changed(bool)), | |
214 | main_bar.get(), SLOT(on_always_zoom_to_fit_changed(bool))); | |
215 | } | |
216 | ||
217 | return v; | |
218 | } | |
219 | ||
220 | return nullptr; | |
221 | } | |
222 | ||
223 | shared_ptr<Session> MainWindow::add_session() | |
224 | { | |
225 | static int last_session_id = 1; | |
226 | QString name = tr("Untitled-%1").arg(last_session_id++); | |
227 | ||
228 | shared_ptr<Session> session = make_shared<Session>(device_manager_, name); | |
229 | ||
230 | connect(session.get(), SIGNAL(add_view(const QString&, views::ViewType, Session*)), | |
231 | this, SLOT(on_add_view(const QString&, views::ViewType, Session*))); | |
232 | connect(session.get(), SIGNAL(name_changed()), | |
233 | this, SLOT(on_session_name_changed())); | |
234 | ||
235 | sessions_.push_back(session); | |
236 | ||
237 | QMainWindow *window = new QMainWindow(); | |
238 | window->setWindowFlags(Qt::Widget); // Remove Qt::Window flag | |
239 | session_windows_[session] = window; | |
240 | session_selector_.addTab(window, name); | |
241 | ||
242 | shared_ptr<views::ViewBase> main_view = | |
243 | add_view(name, views::ViewTypeTrace, *session); | |
244 | ||
245 | return session; | |
246 | } | |
247 | ||
248 | void MainWindow::remove_session(shared_ptr<Session> session) | |
249 | { | |
250 | for (shared_ptr<views::ViewBase> view : session->views()) { | |
251 | // Find the dock the view is contained in and remove it | |
252 | for (auto entry : view_docks_) | |
253 | if (entry.second == view) { | |
254 | // Remove the view from the session | |
255 | session->deregister_view(view); | |
256 | ||
257 | // Remove the view from its parent; otherwise, Qt will | |
258 | // call deleteLater() on it, which causes a double free | |
259 | // since the shared_ptr in view_docks_ doesn't know | |
260 | // that Qt keeps a pointer to the view around | |
261 | entry.second->setParent(0); | |
262 | ||
263 | // Remove this entry from the container | |
264 | view_docks_.erase(entry.first); | |
265 | } | |
266 | } | |
267 | ||
268 | QMainWindow *window = session_windows_.at(session); | |
269 | session_selector_.removeTab(session_selector_.indexOf(window)); | |
270 | ||
271 | session_windows_.erase(session); | |
272 | ||
273 | sessions_.remove_if([&](shared_ptr<Session> s) { | |
274 | return s == session; }); | |
275 | ||
276 | // Update the window title if there is no view left to | |
277 | // generate focus change events | |
278 | if (sessions_.empty()) | |
279 | setWindowTitle(WindowTitle); | |
280 | } | |
281 | ||
282 | void MainWindow::setup_ui() | |
283 | { | |
284 | setObjectName(QString::fromUtf8("MainWindow")); | |
285 | ||
286 | setCentralWidget(&session_selector_); | |
287 | ||
288 | // Set the window icon | |
289 | QIcon icon; | |
290 | icon.addFile(QString(":/icons/sigrok-logo-notext.png")); | |
291 | setWindowIcon(icon); | |
292 | ||
293 | action_view_sticky_scrolling_->setCheckable(true); | |
294 | action_view_sticky_scrolling_->setChecked(true); | |
295 | action_view_sticky_scrolling_->setShortcut(QKeySequence(Qt::Key_S)); | |
296 | action_view_sticky_scrolling_->setObjectName( | |
297 | QString::fromUtf8("actionViewStickyScrolling")); | |
298 | action_view_sticky_scrolling_->setText(tr("&Sticky Scrolling")); | |
299 | ||
300 | action_view_coloured_bg_->setCheckable(true); | |
301 | action_view_coloured_bg_->setChecked(true); | |
302 | action_view_coloured_bg_->setShortcut(QKeySequence(Qt::Key_B)); | |
303 | action_view_coloured_bg_->setObjectName( | |
304 | QString::fromUtf8("actionViewColouredBg")); | |
305 | action_view_coloured_bg_->setText(tr("Use &coloured backgrounds")); | |
306 | ||
307 | action_about_->setObjectName(QString::fromUtf8("actionAbout")); | |
308 | action_about_->setText(tr("&About...")); | |
309 | ||
310 | setDockNestingEnabled(true); | |
311 | ||
312 | connect(static_cast<QApplication *>(QCoreApplication::instance()), | |
313 | SIGNAL(focusChanged(QWidget*, QWidget*)), | |
314 | this, SLOT(on_focus_changed())); | |
315 | } | |
316 | ||
317 | void MainWindow::save_ui_settings() | |
318 | { | |
319 | QSettings settings; | |
320 | int id = 0; | |
321 | ||
322 | settings.beginGroup("MainWindow"); | |
323 | settings.setValue("state", saveState()); | |
324 | settings.setValue("geometry", saveGeometry()); | |
325 | settings.endGroup(); | |
326 | ||
327 | for (shared_ptr<Session> session : sessions_) { | |
328 | // Ignore sessions using the demo device or no device at all | |
329 | if (session->device()) { | |
330 | shared_ptr<devices::HardwareDevice> device = | |
331 | dynamic_pointer_cast< devices::HardwareDevice > | |
332 | (session->device()); | |
333 | ||
334 | if (device && | |
335 | device->hardware_device()->driver()->name() == "demo") | |
336 | continue; | |
337 | ||
338 | settings.beginGroup("Session" + QString::number(id++)); | |
339 | settings.remove(""); // Remove all keys in this group | |
340 | session->save_settings(settings); | |
341 | settings.endGroup(); | |
342 | } | |
343 | } | |
344 | ||
345 | settings.setValue("sessions", id); | |
346 | } | |
347 | ||
348 | void MainWindow::restore_ui_settings() | |
349 | { | |
350 | QSettings settings; | |
351 | int i, session_count; | |
352 | ||
353 | settings.beginGroup("MainWindow"); | |
354 | ||
355 | if (settings.contains("geometry")) { | |
356 | restoreGeometry(settings.value("geometry").toByteArray()); | |
357 | restoreState(settings.value("state").toByteArray()); | |
358 | } else | |
359 | resize(1000, 720); | |
360 | ||
361 | settings.endGroup(); | |
362 | ||
363 | session_count = settings.value("sessions", 0).toInt(); | |
364 | ||
365 | for (i = 0; i < session_count; i++) { | |
366 | settings.beginGroup("Session" + QString::number(i)); | |
367 | shared_ptr<Session> session = add_session(); | |
368 | session->restore_settings(settings); | |
369 | settings.endGroup(); | |
370 | } | |
371 | } | |
372 | ||
373 | void MainWindow::closeEvent(QCloseEvent *event) | |
374 | { | |
375 | save_ui_settings(); | |
376 | event->accept(); | |
377 | } | |
378 | ||
379 | QMenu* MainWindow::createPopupMenu() | |
380 | { | |
381 | return nullptr; | |
382 | } | |
383 | ||
384 | bool MainWindow::restoreState(const QByteArray &state, int version) | |
385 | { | |
386 | (void)state; | |
387 | (void)version; | |
388 | ||
389 | // Do nothing. We don't want Qt to handle this, or else it | |
390 | // will try to restore all the dock widgets and create havoc. | |
391 | ||
392 | return false; | |
393 | } | |
394 | ||
395 | void MainWindow::on_add_view(const QString &title, views::ViewType type, | |
396 | Session *session) | |
397 | { | |
398 | // We get a pointer and need a reference | |
399 | for (std::shared_ptr<Session> s : sessions_) | |
400 | if (s.get() == session) | |
401 | add_view(title, type, *s); | |
402 | } | |
403 | ||
404 | void MainWindow::on_focus_changed() | |
405 | { | |
406 | shared_ptr<views::ViewBase> view; | |
407 | bool title_set = false; | |
408 | ||
409 | view = get_active_view(); | |
410 | ||
411 | for (shared_ptr<Session> session : sessions_) { | |
412 | if (!session->has_view(view)) | |
413 | continue; | |
414 | ||
415 | setWindowTitle(session->name() + " - " + WindowTitle); | |
416 | title_set = true; | |
417 | } | |
418 | ||
419 | if (!title_set) | |
420 | setWindowTitle(WindowTitle); | |
421 | } | |
422 | ||
423 | void MainWindow::on_new_session() | |
424 | { | |
425 | add_session(); | |
426 | } | |
427 | ||
428 | void MainWindow::on_session_name_changed() | |
429 | { | |
430 | // Update the corresponding dock widget's name(s) | |
431 | Session *session = qobject_cast<Session*>(QObject::sender()); | |
432 | assert(session); | |
433 | ||
434 | for (shared_ptr<views::ViewBase> view : session->views()) { | |
435 | // Get the dock that contains the view | |
436 | for (auto entry : view_docks_) | |
437 | if (entry.second == view) { | |
438 | entry.first->setObjectName(session->name()); | |
439 | entry.first->setWindowTitle(session->name()); | |
440 | } | |
441 | } | |
442 | ||
443 | // Refresh window title if the affected session has focus | |
444 | on_focus_changed(); | |
445 | } | |
446 | ||
447 | void MainWindow::on_new_view(Session *session) | |
448 | { | |
449 | // We get a pointer and need a reference | |
450 | for (std::shared_ptr<Session> s : sessions_) | |
451 | if (s.get() == session) | |
452 | add_view(session->name(), views::ViewTypeTrace, *s); | |
453 | } | |
454 | ||
455 | void MainWindow::on_view_close_clicked() | |
456 | { | |
457 | // Find the dock widget that contains the close button that was clicked | |
458 | QObject *w = QObject::sender(); | |
459 | QDockWidget *dock = 0; | |
460 | ||
461 | while (w) { | |
462 | dock = qobject_cast<QDockWidget*>(w); | |
463 | if (dock) | |
464 | break; | |
465 | w = w->parent(); | |
466 | } | |
467 | ||
468 | // Get the view contained in the dock widget | |
469 | shared_ptr<views::ViewBase> view; | |
470 | ||
471 | for (auto entry : view_docks_) | |
472 | if (entry.first == dock) | |
473 | view = entry.second; | |
474 | ||
475 | // Deregister the view | |
476 | for (shared_ptr<Session> session : sessions_) { | |
477 | if (!session->has_view(view)) | |
478 | continue; | |
479 | ||
480 | // Also destroy the entire session if its main view is closing | |
481 | if (view == session->main_view()) { | |
482 | remove_session(session); | |
483 | break; | |
484 | } else | |
485 | session->deregister_view(view); | |
486 | } | |
487 | } | |
488 | ||
489 | void MainWindow::on_actionViewStickyScrolling_triggered() | |
490 | { | |
491 | shared_ptr<views::ViewBase> viewbase = get_active_view(); | |
492 | views::TraceView::View* view = | |
493 | qobject_cast<views::TraceView::View*>(viewbase.get()); | |
494 | if (view) | |
495 | view->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked()); | |
496 | } | |
497 | ||
498 | void MainWindow::on_actionViewColouredBg_triggered() | |
499 | { | |
500 | shared_ptr<views::ViewBase> viewbase = get_active_view(); | |
501 | views::TraceView::View* view = | |
502 | qobject_cast<views::TraceView::View*>(viewbase.get()); | |
503 | if (view) | |
504 | view->enable_coloured_bg(action_view_coloured_bg_->isChecked()); | |
505 | } | |
506 | ||
507 | void MainWindow::on_actionAbout_triggered() | |
508 | { | |
509 | dialogs::About dlg(device_manager_.context(), this); | |
510 | dlg.exec(); | |
511 | } | |
512 | ||
513 | } // namespace pv |