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SamplingBar: Improved event loop protection
[pulseview.git] / pv / mainwindow.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
19  */
20
21 #ifdef ENABLE_DECODE
22 #include <libsigrokdecode/libsigrokdecode.h>
23 #endif
24
25 #include <boost/bind.hpp>
26 #include <boost/foreach.hpp>
27
28 #include <QAction>
29 #include <QApplication>
30 #include <QButtonGroup>
31 #include <QFileDialog>
32 #include <QMessageBox>
33 #include <QMenu>
34 #include <QMenuBar>
35 #include <QStatusBar>
36 #include <QVBoxLayout>
37 #include <QWidget>
38
39 #include "mainwindow.h"
40
41 #include "devicemanager.h"
42 #include "devinst.h"
43 #include "dialogs/about.h"
44 #include "dialogs/connect.h"
45 #include "dialogs/storeprogress.h"
46 #include "toolbars/samplingbar.h"
47 #include "view/logicsignal.h"
48 #include "view/view.h"
49 #ifdef ENABLE_DECODE
50 #include "widgets/decodermenu.h"
51 #endif
52
53 /* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
54 #define __STDC_FORMAT_MACROS
55 #include <inttypes.h>
56 #include <stdint.h>
57 #include <stdarg.h>
58 #include <glib.h>
59 #include <libsigrok/libsigrok.h>
60
61 using boost::shared_ptr;
62 using std::list;
63
64 namespace pv {
65
66 namespace view {
67 class SelectableItem;
68 }
69
70 MainWindow::MainWindow(DeviceManager &device_manager,
71         const char *open_file_name,
72         QWidget *parent) :
73         QMainWindow(parent),
74         _device_manager(device_manager),
75         _session(device_manager)
76 {
77         setup_ui();
78         if (open_file_name) {
79                 const QString s(QString::fromUtf8(open_file_name));
80                 QMetaObject::invokeMethod(this, "load_file",
81                         Qt::QueuedConnection,
82                         Q_ARG(QString, s));
83         }
84 }
85
86 void MainWindow::setup_ui()
87 {
88         setObjectName(QString::fromUtf8("MainWindow"));
89
90         resize(1024, 768);
91
92         // Set the window icon
93         QIcon icon;
94         icon.addFile(QString::fromUtf8(":/icons/sigrok-logo-notext.png"),
95                 QSize(), QIcon::Normal, QIcon::Off);
96         setWindowIcon(icon);
97
98         // Setup the central widget
99         _central_widget = new QWidget(this);
100         _vertical_layout = new QVBoxLayout(_central_widget);
101         _vertical_layout->setSpacing(6);
102         _vertical_layout->setContentsMargins(0, 0, 0, 0);
103         setCentralWidget(_central_widget);
104
105         _view = new pv::view::View(_session, this);
106
107         _vertical_layout->addWidget(_view);
108
109         // Setup the menu bar
110         QMenuBar *const menu_bar = new QMenuBar(this);
111         menu_bar->setGeometry(QRect(0, 0, 400, 25));
112
113         // File Menu
114         QMenu *const menu_file = new QMenu;
115         menu_file->setTitle(QApplication::translate(
116                 "MainWindow", "&File", 0, QApplication::UnicodeUTF8));
117
118         QAction *const action_open = new QAction(this);
119         action_open->setText(QApplication::translate(
120                 "MainWindow", "&Open...", 0, QApplication::UnicodeUTF8));
121         action_open->setIcon(QIcon::fromTheme("document-open",
122                 QIcon(":/icons/document-open.png")));
123         action_open->setObjectName(QString::fromUtf8("actionOpen"));
124         menu_file->addAction(action_open);
125
126         QAction *const action_save_as = new QAction(this);
127         action_save_as->setText(QApplication::translate(
128                 "MainWindow", "&Save As...", 0, QApplication::UnicodeUTF8));
129         action_save_as->setIcon(QIcon::fromTheme("document-save-as",
130                 QIcon(":/icons/document-save-as.png")));
131         action_save_as->setObjectName(QString::fromUtf8("actionSaveAs"));
132         menu_file->addAction(action_save_as);
133
134         menu_file->addSeparator();
135
136         QAction *const action_connect = new QAction(this);
137         action_connect->setText(QApplication::translate(
138                 "MainWindow", "&Connect to Device...", 0,
139                 QApplication::UnicodeUTF8));
140         action_connect->setObjectName(QString::fromUtf8("actionConnect"));
141         menu_file->addAction(action_connect);
142
143         menu_file->addSeparator();
144
145         QAction *action_quit = new QAction(this);
146         action_quit->setText(QApplication::translate(
147                 "MainWindow", "&Quit", 0, QApplication::UnicodeUTF8));
148         action_quit->setIcon(QIcon::fromTheme("application-exit",
149                 QIcon(":/icons/application-exit.png")));
150         action_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
151         action_quit->setObjectName(QString::fromUtf8("actionQuit"));
152         menu_file->addAction(action_quit);
153
154         // View Menu
155         QMenu *menu_view = new QMenu;
156         menu_view->setTitle(QApplication::translate(
157                 "MainWindow", "&View", 0, QApplication::UnicodeUTF8));
158
159         QAction *const action_view_zoom_in = new QAction(this);
160         action_view_zoom_in->setText(QApplication::translate(
161                 "MainWindow", "Zoom &In", 0, QApplication::UnicodeUTF8));
162         action_view_zoom_in->setIcon(QIcon::fromTheme("zoom-in",
163                 QIcon(":/icons/zoom-in.png")));
164         // simply using Qt::Key_Plus shows no + in the menu
165         action_view_zoom_in->setShortcut(QKeySequence::ZoomIn);
166         action_view_zoom_in->setObjectName(
167                 QString::fromUtf8("actionViewZoomIn"));
168         menu_view->addAction(action_view_zoom_in);
169
170         QAction *const action_view_zoom_out = new QAction(this);
171         action_view_zoom_out->setText(QApplication::translate(
172                 "MainWindow", "Zoom &Out", 0, QApplication::UnicodeUTF8));
173         action_view_zoom_out->setIcon(QIcon::fromTheme("zoom-out",
174                 QIcon(":/icons/zoom-out.png")));
175         action_view_zoom_out->setShortcut(QKeySequence::ZoomOut);
176         action_view_zoom_out->setObjectName(
177                 QString::fromUtf8("actionViewZoomOut"));
178         menu_view->addAction(action_view_zoom_out);
179
180         QAction *const action_view_zoom_fit = new QAction(this);
181         action_view_zoom_fit->setText(QApplication::translate(
182                 "MainWindow", "Zoom to &Fit", 0, QApplication::UnicodeUTF8));
183         action_view_zoom_fit->setIcon(QIcon::fromTheme("zoom-fit",
184                 QIcon(":/icons/zoom-fit.png")));
185         action_view_zoom_fit->setShortcut(QKeySequence(Qt::Key_F));
186         action_view_zoom_fit->setObjectName(
187                 QString::fromUtf8("actionViewZoomFit"));
188         menu_view->addAction(action_view_zoom_fit);
189
190         QAction *const action_view_zoom_one_to_one = new QAction(this);
191         action_view_zoom_one_to_one->setText(QApplication::translate(
192                 "MainWindow", "Zoom to &One-to-One", 0,
193                         QApplication::UnicodeUTF8));
194         action_view_zoom_one_to_one->setIcon(QIcon::fromTheme("zoom-original",
195                 QIcon(":/icons/zoom-original.png")));
196         action_view_zoom_one_to_one->setShortcut(QKeySequence(Qt::Key_O));
197         action_view_zoom_one_to_one->setObjectName(
198                 QString::fromUtf8("actionViewZoomOneToOne"));
199         menu_view->addAction(action_view_zoom_one_to_one);
200
201         menu_view->addSeparator();
202
203         QAction *action_view_show_cursors = new QAction(this);
204         action_view_show_cursors->setCheckable(true);
205         action_view_show_cursors->setChecked(_view->cursors_shown());
206         action_view_show_cursors->setShortcut(QKeySequence(Qt::Key_C));
207         action_view_show_cursors->setObjectName(
208                 QString::fromUtf8("actionViewShowCursors"));
209         action_view_show_cursors->setText(QApplication::translate(
210                 "MainWindow", "Show &Cursors", 0, QApplication::UnicodeUTF8));
211         menu_view->addAction(action_view_show_cursors);
212
213         // Decoders Menu
214 #ifdef ENABLE_DECODE
215         QMenu *const menu_decoders = new QMenu;
216         menu_decoders->setTitle(QApplication::translate(
217                 "MainWindow", "&Decoders", 0, QApplication::UnicodeUTF8));
218
219         pv::widgets::DecoderMenu *const menu_decoders_add =
220                 new pv::widgets::DecoderMenu(menu_decoders);
221         menu_decoders_add->setTitle(QApplication::translate(
222                 "MainWindow", "&Add", 0, QApplication::UnicodeUTF8));
223         connect(menu_decoders_add, SIGNAL(decoder_selected(srd_decoder*)),
224                 this, SLOT(add_decoder(srd_decoder*)));
225
226         menu_decoders->addMenu(menu_decoders_add);
227 #endif
228
229         // Help Menu
230         QMenu *const menu_help = new QMenu;
231         menu_help->setTitle(QApplication::translate(
232                 "MainWindow", "&Help", 0, QApplication::UnicodeUTF8));
233
234         QAction *const action_about = new QAction(this);
235         action_about->setObjectName(QString::fromUtf8("actionAbout"));
236         action_about->setText(QApplication::translate(
237                 "MainWindow", "&About...", 0, QApplication::UnicodeUTF8));
238         menu_help->addAction(action_about);
239
240         menu_bar->addAction(menu_file->menuAction());
241         menu_bar->addAction(menu_view->menuAction());
242 #ifdef ENABLE_DECODE
243         menu_bar->addAction(menu_decoders->menuAction());
244 #endif
245         menu_bar->addAction(menu_help->menuAction());
246
247         setMenuBar(menu_bar);
248         QMetaObject::connectSlotsByName(this);
249
250         // Setup the toolbar
251         QToolBar *const toolbar = new QToolBar(tr("Main Toolbar"), this);
252         toolbar->addAction(action_open);
253         toolbar->addSeparator();
254         toolbar->addAction(action_view_zoom_in);
255         toolbar->addAction(action_view_zoom_out);
256         toolbar->addAction(action_view_zoom_fit);
257         addToolBar(toolbar);
258
259         // Setup the sampling bar
260         _sampling_bar = new toolbars::SamplingBar(_session, this);
261
262         // Populate the device list and select the initially selected device
263         update_device_list();
264
265         connect(_sampling_bar, SIGNAL(run_stop()), this,
266                 SLOT(run_stop()));
267         addToolBar(_sampling_bar);
268
269         // Set the title
270         setWindowTitle(QApplication::translate("MainWindow", "PulseView", 0,
271                 QApplication::UnicodeUTF8));
272
273         // Setup _session events
274         connect(&_session, SIGNAL(capture_state_changed(int)), this,
275                 SLOT(capture_state_changed(int)));
276
277 }
278
279 void MainWindow::session_error(
280         const QString text, const QString info_text)
281 {
282         QMetaObject::invokeMethod(this, "show_session_error",
283                 Qt::QueuedConnection, Q_ARG(QString, text),
284                 Q_ARG(QString, info_text));
285 }
286
287 void MainWindow::update_device_list(shared_ptr<pv::DevInst> selected_device)
288 {
289         assert(_sampling_bar);
290
291         const list< shared_ptr<DevInst> > &devices = _device_manager.devices();
292         _sampling_bar->set_device_list(devices);
293
294         if (!selected_device && !devices.empty()) {
295                 // Fall back to the first device in the list.
296                 selected_device = devices.front();
297
298                 // Try and find the demo device and select that by default
299                 BOOST_FOREACH (shared_ptr<pv::DevInst> dev_inst, devices)
300                         if (strcmp(dev_inst->dev_inst()->driver->name,
301                                 "demo") == 0) {
302                                 selected_device = dev_inst;
303                         }
304         }
305
306         if (selected_device) {
307                 _sampling_bar->set_selected_device(selected_device);
308                 _session.set_device(selected_device);
309         }
310 }
311
312 void MainWindow::load_file(QString file_name)
313 {
314         const QString errorMessage(
315                 QString("Failed to load file %1").arg(file_name));
316         const QString infoMessage;
317         _session.load_file(file_name.toStdString(),
318                 boost::bind(&MainWindow::session_error, this,
319                         errorMessage, infoMessage));
320 }
321
322 void MainWindow::show_session_error(
323         const QString text, const QString info_text)
324 {
325         QMessageBox msg(this);
326         msg.setText(text);
327         msg.setInformativeText(info_text);
328         msg.setStandardButtons(QMessageBox::Ok);
329         msg.setIcon(QMessageBox::Warning);
330         msg.exec();
331 }
332
333 void MainWindow::on_actionOpen_triggered()
334 {
335         // Show the dialog
336         const QString file_name = QFileDialog::getOpenFileName(
337                 this, tr("Open File"), "", tr(
338                         "Sigrok Sessions (*.sr);;"
339                         "All Files (*.*)"));
340         if (!file_name.isEmpty())
341                 load_file(file_name);
342 }
343
344 void MainWindow::on_actionSaveAs_triggered()
345 {
346         using pv::dialogs::StoreProgress;
347
348         // Stop any currently running capture session
349         _session.stop_capture();
350
351         // Show the dialog
352         const QString file_name = QFileDialog::getSaveFileName(
353                 this, tr("Save File"), "", tr("Sigrok Sessions (*.sr)"));
354
355         if (file_name.isEmpty())
356                 return;
357
358         StoreProgress *dlg = new StoreProgress(file_name, _session, this);
359         dlg->run();
360 }
361
362 void MainWindow::on_actionConnect_triggered()
363 {
364         // Stop any currently running capture session
365         _session.stop_capture();
366
367         dialogs::Connect dlg(this, _device_manager);
368
369         // If the user selected a device, select it in the device list. Select the
370         // current device otherwise.
371         shared_ptr<DevInst> dev_inst = dlg.exec() ?
372                 dlg.get_selected_device() : _session.get_device();
373
374         update_device_list(dev_inst);
375 }
376
377 void MainWindow::on_actionQuit_triggered()
378 {
379         close();
380 }
381
382 void MainWindow::on_actionViewZoomIn_triggered()
383 {
384         _view->zoom(1);
385 }
386
387 void MainWindow::on_actionViewZoomOut_triggered()
388 {
389         _view->zoom(-1);
390 }
391
392 void MainWindow::on_actionViewZoomFit_triggered()
393 {
394         _view->zoom_fit();
395 }
396
397 void MainWindow::on_actionViewZoomOneToOne_triggered()
398 {
399         _view->zoom_one_to_one();
400 }
401
402 void MainWindow::on_actionViewShowCursors_triggered()
403 {
404         assert(_view);
405
406         const bool show = !_view->cursors_shown();
407         if(show)
408                 _view->centre_cursors();
409
410         _view->show_cursors(show);
411 }
412
413 void MainWindow::on_actionAbout_triggered()
414 {
415         dialogs::About dlg(this);
416         dlg.exec();
417 }
418
419 void MainWindow::add_decoder(srd_decoder *decoder)
420 {
421 #ifdef ENABLE_DECODE
422         assert(decoder);
423         _session.add_decoder(decoder);
424 #else
425         (void)decoder;
426 #endif
427 }
428
429 void MainWindow::run_stop()
430 {
431         switch(_session.get_capture_state()) {
432         case SigSession::Stopped:
433                 _session.start_capture(
434                                 boost::bind(&MainWindow::session_error, this,
435                                 QString("Capture failed"), _1));
436                 break;
437
438         case SigSession::AwaitingTrigger:
439         case SigSession::Running:
440                 _session.stop_capture();
441                 break;
442         }
443 }
444
445 void MainWindow::capture_state_changed(int state)
446 {
447         _sampling_bar->set_capture_state((pv::SigSession::capture_state)state);
448 }
449
450 } // namespace pv