annotate main/main.cpp @ 283:d27c322b5d6e

* Avoid crash when "hiding" non-visible splash (I don't quite understand this one, but hey)
author Chris Cannam
date Thu, 13 Nov 2008 18:17:33 +0000
parents 64a8ee011004
children 5c5a1ce79ad5
rev   line source
Chris@0 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@0 4 Sonic Visualiser
Chris@0 5 An audio file viewer and annotation editor.
Chris@0 6 Centre for Digital Music, Queen Mary, University of London.
Chris@77 7 This file copyright 2006 Chris Cannam and QMUL.
Chris@0 8
Chris@0 9 This program is free software; you can redistribute it and/or
Chris@0 10 modify it under the terms of the GNU General Public License as
Chris@0 11 published by the Free Software Foundation; either version 2 of the
Chris@0 12 License, or (at your option) any later version. See the file
Chris@0 13 COPYING included with this distribution for more information.
Chris@0 14 */
Chris@0 15
Chris@0 16 #include "MainWindow.h"
Chris@0 17
Chris@1 18 #include "system/System.h"
Chris@1 19 #include "system/Init.h"
Chris@0 20 #include "base/TempDirectory.h"
Chris@0 21 #include "base/PropertyContainer.h"
Chris@0 22 #include "base/Preferences.h"
Chris@120 23 #include "widgets/TipDialog.h"
Chris@0 24
Chris@0 25 #include <QMetaType>
Chris@0 26 #include <QApplication>
Chris@0 27 #include <QDesktopWidget>
Chris@0 28 #include <QMessageBox>
Chris@0 29 #include <QTranslator>
Chris@0 30 #include <QLocale>
Chris@5 31 #include <QSettings>
Chris@7 32 #include <QIcon>
Chris@11 33 #include <QSessionManager>
Chris@165 34 #include <QDir>
Chris@231 35 #include <QSplashScreen>
Chris@252 36 #include <QTimer>
Chris@0 37
Chris@0 38 #include <iostream>
Chris@0 39 #include <signal.h>
Chris@0 40
Chris@215 41 #ifdef HAVE_FFTW3F
Chris@215 42 #include <fftw3.h>
Chris@215 43 #endif
Chris@215 44
Chris@127 45 /*! \mainpage Sonic Visualiser
Chris@127 46
Chris@127 47 \section interesting Summary of interesting classes
Chris@127 48
Chris@127 49 - Data models: Model and subclasses, e.g. WaveFileModel
Chris@127 50
Chris@127 51 - Graphical layers: Layer and subclasses, displayed on View and its
Chris@127 52 subclass widgets.
Chris@127 53
Chris@127 54 - Main window class, document class, and file parser: MainWindow,
Chris@127 55 Document, SVFileReader
Chris@127 56
Chris@127 57 - Turning one model (e.g. audio) into another (e.g. more audio, or a
Chris@244 58 curve extracted from it): Transform, encapsulating the data that need
Chris@244 59 to be stored to be able to reproduce a given transformation;
Chris@244 60 TransformFactory, for discovering the available types of transform;
Chris@244 61 ModelTransformerFactory, ModelTransformer and subclasses, providing
Chris@244 62 the mechanisms for applying transforms to data models
Chris@127 63
Chris@127 64 - Creating the plugins used by transforms: RealTimePluginFactory,
Chris@129 65 FeatureExtractionPluginFactory. See also the API documentation for
Chris@129 66 Vamp feature extraction plugins at
Chris@129 67 http://www.vamp-plugins.org/code-doc/.
Chris@127 68
Chris@127 69 - File reading and writing code: AudioFileReader and subclasses,
Chris@127 70 WavFileWriter, DataFileReader, SVFileReader
Chris@127 71
Chris@127 72 - FFT calculation and cacheing: FFTModel, FFTDataServer
Chris@127 73
Chris@127 74 - Widgets that show groups of editable properties: PropertyBox for
Chris@127 75 layer properties (contained in a PropertyStack), PluginParameterBox
Chris@127 76 for plugins (contained in a PluginParameterDialog)
Chris@127 77
Chris@127 78 - Audio playback: AudioCallbackPlaySource and subclasses,
Chris@127 79 AudioCallbackPlayTarget and subclasses, AudioGenerator
Chris@127 80
Chris@127 81 \section model Data sources: the Model hierarchy
Chris@127 82
Chris@127 83 A Model is something containing, or knowing how to obtain, data.
Chris@127 84
Chris@127 85 For example, WaveFileModel is a model that knows how to get data
Chris@127 86 from an audio file; SparseTimeValueModel is a model containing
Chris@127 87 editable "curve" data.
Chris@127 88
Chris@127 89 Models typically subclass one of a number of abstract subclasses of
Chris@127 90 Model. For example, WaveFileModel subclasses DenseTimeValueModel,
Chris@127 91 which describes an interface for models that have a value at each
Chris@127 92 time point for a given sampling resolution. (Note that
Chris@127 93 WaveFileModel does not actually read the files itself: it uses
Chris@127 94 AudioFileReader classes for that. It just makes data from the
Chris@127 95 files available in a Model.) SparseTimeValueModel uses the
Chris@127 96 SparseModel template class, which provides most of the
Chris@127 97 implementation for models that contain a series of points of some
Chris@127 98 sort -- also used by NoteModel, TextModel, and
Chris@127 99 SparseOneDimensionalModel.
Chris@127 100
Chris@127 101 Everything that goes on the screen originates from a model, via a
Chris@127 102 layer (see below). The models are contained in a Document object.
Chris@127 103 There is no containment hierarchy or ordering of models in the
Chris@127 104 document. One model is the main model, which defines the sample
Chris@127 105 rate for playback.
Chris@127 106
Chris@127 107 A model may also be marked as a "derived" model, which means it was
Chris@127 108 generated from another model using some transform (feature
Chris@127 109 extraction or effect plugin, etc) -- the idea being that they can
Chris@127 110 be re-generated using the same transform if a new source model is
Chris@127 111 loaded.
Chris@127 112
Chris@127 113 \section layer Things that can display data: the Layer hierarchy
Chris@127 114
Chris@127 115 A Layer is something that knows how to draw parts of a model onto a
Chris@127 116 timeline.
Chris@127 117
Chris@127 118 For example, WaveformLayer is a layer which draws waveforms, based
Chris@127 119 on WaveFileModel; TimeValueLayer draws curves, based on
Chris@127 120 SparseTimeValueModel; SpectrogramLayer draws spectrograms, based on
Chris@127 121 WaveFileModel (via FFTModel).
Chris@127 122
Chris@127 123 The most basic functions of a layer are: to draw itself onto a
Chris@127 124 Pane, against a timeline on the x axis; and to permit user
Chris@127 125 interaction. If you were thinking of adding the capability to
Chris@127 126 display a new sort of something, then you would want to add a new
Chris@127 127 layer type. (You may also need a new model type, depending on
Chris@127 128 whether any existing model can capture the data you need.)
Chris@127 129 Depending on the sort of data in question, there are various
Chris@127 130 existing layers that might be appropriate to start from -- for
Chris@127 131 example, a layer that displays images that the user has imported
Chris@127 132 and associated with particular times might have something in common
Chris@127 133 with the existing TextLayer which displays pieces of text that are
Chris@127 134 associated with particular times.
Chris@127 135
Chris@127 136 Although layers are visual objects, they are contained in the
Chris@127 137 Document in Sonic Visualiser rather than being managed together
Chris@127 138 with display widgets. The Sonic Visualiser file format has
Chris@127 139 separate data and layout sections, and the layers are defined in
Chris@127 140 the data section and then referred to in the layout section which
Chris@127 141 determines which layers may go on which panes (see Pane below).
Chris@127 142
Chris@127 143 Once a layer class is defined, some basic data about it needs to be
Chris@127 144 set up in the LayerFactory class, and then it will appear in the
Chris@127 145 menus and so on on the main window.
Chris@127 146
Chris@127 147 \section view Widgets that are used to show layers: The View hierarchy
Chris@127 148
Chris@127 149 A View is a widget that displays a stack of layers. The most
Chris@127 150 important subclass is Pane, the widget that is used to show most of
Chris@127 151 the data in the main window of Sonic Visualiser.
Chris@127 152
Chris@127 153 All a pane really does is contain a set of layers and get them to
Chris@127 154 render themselves (one on top of the other, with the topmost layer
Chris@127 155 being the one that is currently interacted with), cache the
Chris@127 156 results, negotiate user interaction with them, and so on. This is
Chris@127 157 generally fiddly, if not especially interesting. Panes are
Chris@127 158 strictly layout objects and are not stored in the Document class;
Chris@127 159 instead the MainWindow contains a PaneStack widget (the widget that
Chris@127 160 takes up most of Sonic Visualiser's main window) which contains a
Chris@127 161 set of panes stacked vertically.
Chris@127 162
Chris@127 163 Another View subclass is Overview, which is the widget that
Chris@127 164 contains that green waveform showing the entire file at the bottom
Chris@127 165 of the window.
Chris@127 166
Chris@127 167 */
Chris@127 168
Chris@0 169 static QMutex cleanupMutex;
Chris@0 170
Chris@0 171 static void
Chris@0 172 signalHandler(int /* signal */)
Chris@0 173 {
Chris@0 174 // Avoid this happening more than once across threads
Chris@0 175
Chris@0 176 cleanupMutex.lock();
Chris@0 177 std::cerr << "signalHandler: cleaning up and exiting" << std::endl;
Chris@0 178 TempDirectory::getInstance()->cleanup();
Chris@0 179 exit(0); // without releasing mutex
Chris@0 180 }
Chris@0 181
Chris@11 182 class SVApplication : public QApplication
Chris@11 183 {
Chris@11 184 public:
Chris@11 185 SVApplication(int argc, char **argv) :
Chris@11 186 QApplication(argc, argv),
Chris@11 187 m_mainWindow(0) { }
Chris@11 188 virtual ~SVApplication() { }
Chris@11 189
Chris@11 190 void setMainWindow(MainWindow *mw) { m_mainWindow = mw; }
Chris@11 191 void releaseMainWindow() { m_mainWindow = 0; }
Chris@11 192
Chris@11 193 virtual void commitData(QSessionManager &manager) {
Chris@11 194 if (!m_mainWindow) return;
Chris@11 195 bool mayAskUser = manager.allowsInteraction();
Chris@11 196 bool success = m_mainWindow->commitData(mayAskUser);
Chris@11 197 manager.release();
Chris@11 198 if (!success) manager.cancel();
Chris@11 199 }
Chris@11 200
Chris@11 201 protected:
Chris@11 202 MainWindow *m_mainWindow;
Chris@11 203 };
Chris@11 204
Chris@0 205 int
Chris@0 206 main(int argc, char **argv)
Chris@0 207 {
Chris@11 208 SVApplication application(argc, argv);
Chris@0 209
Chris@46 210 QStringList args = application.arguments();
Chris@46 211
Chris@0 212 signal(SIGINT, signalHandler);
Chris@0 213 signal(SIGTERM, signalHandler);
Chris@0 214
Chris@0 215 #ifndef Q_WS_WIN32
Chris@0 216 signal(SIGHUP, signalHandler);
Chris@0 217 signal(SIGQUIT, signalHandler);
Chris@0 218 #endif
Chris@0 219
Chris@0 220 svSystemSpecificInitialisation();
Chris@0 221
Chris@46 222 bool audioOutput = true;
Chris@70 223 bool oscSupport = true;
Chris@70 224
Chris@133 225 if (args.contains("--help") || args.contains("-h") || args.contains("-?")) {
Chris@70 226 std::cerr << QApplication::tr(
Chris@70 227 "\nSonic Visualiser is a program for viewing and exploring audio data\nfor semantic music analysis and annotation.\n\nUsage:\n\n %1 [--no-audio] [--no-osc] [<file> ...]\n\n --no-audio: Do not attempt to open an audio output device\n --no-osc: Do not provide an Open Sound Control port for remote control\n <file>: One or more Sonic Visualiser (.sv) and audio files may be provided.\n").arg(argv[0]).toStdString() << std::endl;
Chris@70 228 exit(2);
Chris@70 229 }
Chris@70 230
Chris@46 231 if (args.contains("--no-audio")) audioOutput = false;
Chris@70 232 if (args.contains("--no-osc")) oscSupport = false;
Chris@46 233
Chris@6 234 QApplication::setOrganizationName("sonic-visualiser");
Chris@5 235 QApplication::setOrganizationDomain("sonicvisualiser.org");
Chris@213 236 QApplication::setApplicationName(QApplication::tr("Sonic Visualiser"));
Chris@141 237
Chris@231 238 QPixmap pixmap(":/icons/sv-splash.png");
Chris@283 239 QSplashScreen *splash = 0;
Chris@231 240
Chris@231 241 QSettings settings;
Chris@237 242
Chris@237 243 settings.beginGroup("Preferences");
Chris@237 244 if (settings.value("show-splash", true).toBool()) {
Chris@283 245 splash = new QSplashScreen(pixmap);
Chris@283 246 splash->show();
Chris@283 247 QTimer::singleShot(5000, splash, SLOT(hide()));
Chris@231 248 application.processEvents();
Chris@231 249 }
Chris@237 250 settings.endGroup();
Chris@231 251
Chris@278 252 settings.beginGroup("RDF");
Chris@278 253 if (!settings.contains("rdf-indices")) {
Chris@278 254 QStringList list;
Chris@278 255 list << "http://www.vamp-plugins.org/rdf/plugins/index.txt";
Chris@278 256 settings.setValue("rdf-indices", list);
Chris@278 257 }
Chris@278 258 settings.endGroup();
Chris@278 259
Chris@141 260 QIcon icon;
Chris@141 261 int sizes[] = { 16, 22, 24, 32, 48, 64, 128 };
Chris@141 262 for (int i = 0; i < sizeof(sizes)/sizeof(sizes[0]); ++i) {
Chris@141 263 icon.addFile(QString(":icons/sv-%1x%2.png").arg(sizes[i]).arg(sizes[i]));
Chris@141 264 }
Chris@141 265 QApplication::setWindowIcon(icon);
Chris@7 266
Chris@0 267 QString language = QLocale::system().name();
Chris@0 268
Chris@0 269 QTranslator qtTranslator;
Chris@0 270 QString qtTrName = QString("qt_%1").arg(language);
Chris@253 271 std::cerr << "Loading " << qtTrName.toStdString() << "... ";
Chris@165 272 bool success = false;
Chris@165 273 if (!(success = qtTranslator.load(qtTrName))) {
Chris@165 274 QString qtDir = getenv("QTDIR");
Chris@165 275 if (qtDir != "") {
Chris@165 276 success = qtTranslator.load
Chris@165 277 (qtTrName, QDir(qtDir).filePath("translations"));
Chris@165 278 }
Chris@165 279 }
Chris@165 280 if (!success) {
Chris@253 281 std::cerr << "Failed\nFailed to load Qt translation for locale" << std::endl;
Chris@253 282 } else {
Chris@253 283 std::cerr << "Done" << std::endl;
Chris@165 284 }
Chris@0 285 application.installTranslator(&qtTranslator);
Chris@0 286
Chris@0 287 QTranslator svTranslator;
Chris@0 288 QString svTrName = QString("sonic-visualiser_%1").arg(language);
Chris@253 289 std::cerr << "Loading " << svTrName.toStdString() << "... ";
Chris@0 290 svTranslator.load(svTrName, ":i18n");
Chris@253 291 std::cerr << "Done" << std::endl;
Chris@0 292 application.installTranslator(&svTranslator);
Chris@0 293
Chris@187 294 StoreStartupLocale();
Chris@187 295
Chris@0 296 // Permit size_t and PropertyName to be used as args in queued signal calls
Chris@0 297 qRegisterMetaType<size_t>("size_t");
Chris@0 298 qRegisterMetaType<PropertyContainer::PropertyName>("PropertyContainer::PropertyName");
Chris@0 299
Chris@222 300 MainWindow *gui = new MainWindow(audioOutput, oscSupport);
Chris@222 301 application.setMainWindow(gui);
Chris@283 302 if (splash) {
Chris@283 303 QObject::connect(gui, SIGNAL(hideSplash()), splash, SLOT(hide()));
Chris@283 304 }
Chris@0 305
Chris@0 306 QDesktopWidget *desktop = QApplication::desktop();
Chris@0 307 QRect available = desktop->availableGeometry();
Chris@0 308
Chris@0 309 int width = available.width() * 2 / 3;
Chris@0 310 int height = available.height() / 2;
Chris@0 311 if (height < 450) height = available.height() * 2 / 3;
Chris@0 312 if (width > height * 2) width = height * 2;
Chris@0 313
Chris@237 314 settings.beginGroup("MainWindow");
Chris@5 315 QSize size = settings.value("size", QSize(width, height)).toSize();
Chris@222 316 gui->resize(size);
Chris@5 317 if (settings.contains("position")) {
Chris@222 318 gui->move(settings.value("position").toPoint());
Chris@5 319 }
Chris@5 320 settings.endGroup();
Chris@5 321
Chris@222 322 gui->show();
Chris@64 323
Chris@118 324 // The MainWindow class seems to have trouble dealing with this if
Chris@118 325 // it tries to adapt to this preference before the constructor is
Chris@118 326 // complete. As a lazy hack, apply it explicitly from here
Chris@222 327 gui->preferenceChanged("Property Box Layout");
Chris@118 328
Chris@54 329 bool haveSession = false;
Chris@54 330 bool haveMainModel = false;
Chris@145 331 bool havePriorCommandLineModel = false;
Chris@46 332
Chris@54 333 for (QStringList::iterator i = args.begin(); i != args.end(); ++i) {
Chris@54 334
Chris@83 335 MainWindow::FileOpenStatus status = MainWindow::FileOpenFailed;
Chris@54 336
Chris@54 337 if (i == args.begin()) continue;
Chris@54 338 if (i->startsWith('-')) continue;
Chris@54 339
Chris@54 340 QString path = *i;
Chris@54 341
Chris@54 342 if (path.endsWith("sv")) {
Chris@54 343 if (!haveSession) {
Chris@222 344 status = gui->openSessionFile(path);
Chris@82 345 if (status == MainWindow::FileOpenSucceeded) {
Chris@54 346 haveSession = true;
Chris@54 347 haveMainModel = true;
Chris@54 348 }
Chris@54 349 } else {
Chris@54 350 std::cerr << "WARNING: Ignoring additional session file argument \"" << path.toStdString() << "\"" << std::endl;
Chris@82 351 status = MainWindow::FileOpenSucceeded;
Chris@54 352 }
Chris@54 353 }
Chris@82 354 if (status != MainWindow::FileOpenSucceeded) {
Chris@54 355 if (!haveMainModel) {
Chris@222 356 status = gui->open(path, MainWindow::ReplaceMainModel);
Chris@145 357 if (status == MainWindow::FileOpenSucceeded) {
Chris@145 358 haveMainModel = true;
Chris@145 359 }
Chris@54 360 } else {
Chris@145 361 if (haveSession && !havePriorCommandLineModel) {
Chris@222 362 status = gui->open(path, MainWindow::AskUser);
Chris@145 363 if (status == MainWindow::FileOpenSucceeded) {
Chris@145 364 havePriorCommandLineModel = true;
Chris@145 365 }
Chris@145 366 } else {
Chris@222 367 status = gui->open(path, MainWindow::CreateAdditionalModel);
Chris@145 368 }
Chris@54 369 }
Chris@54 370 }
Chris@82 371 if (status == MainWindow::FileOpenFailed) {
Chris@283 372 if (splash) splash->hide();
Chris@54 373 QMessageBox::critical
Chris@222 374 (gui, QMessageBox::tr("Failed to open file"),
Chris@197 375 QMessageBox::tr("File or URL \"%1\" could not be opened").arg(path));
Chris@270 376 } else if (status == MainWindow::FileOpenWrongMode) {
Chris@283 377 if (splash) splash->hide();
Chris@270 378 QMessageBox::critical
Chris@270 379 (gui, QMessageBox::tr("Failed to open file"),
Chris@270 380 QMessageBox::tr("<b>Audio required</b><p>Please load at least one audio file before importing annotation data"));
Chris@54 381 }
Chris@180 382 }
Chris@180 383
Chris@215 384 #ifdef HAVE_FFTW3F
Chris@215 385 settings.beginGroup("FFTWisdom");
Chris@215 386 QString wisdom = settings.value("wisdom").toString();
Chris@215 387 if (wisdom != "") {
Chris@215 388 fftwf_import_wisdom_from_string(wisdom.toLocal8Bit().data());
Chris@215 389 }
Chris@267 390 #ifdef HAVE_FFTW3
Chris@267 391 wisdom = settings.value("wisdom_d").toString();
Chris@267 392 if (wisdom != "") {
Chris@267 393 fftw_import_wisdom_from_string(wisdom.toLocal8Bit().data());
Chris@267 394 }
Chris@267 395 #endif
Chris@215 396 settings.endGroup();
Chris@215 397 #endif
Chris@180 398
Chris@283 399 if (splash) splash->finish(gui);
Chris@283 400 delete splash;
Chris@180 401
Chris@123 402 /*
Chris@120 403 TipDialog tipDialog;
Chris@120 404 if (tipDialog.isOK()) {
Chris@120 405 tipDialog.exec();
Chris@120 406 }
Chris@123 407 */
Chris@0 408 int rv = application.exec();
Chris@0 409
Chris@0 410 cleanupMutex.lock();
Chris@0 411 TempDirectory::getInstance()->cleanup();
Chris@222 412
Chris@11 413 application.releaseMainWindow();
Chris@5 414
Chris@215 415 #ifdef HAVE_FFTW3F
Chris@267 416 settings.beginGroup("FFTWisdom");
Chris@215 417 char *cwisdom = fftwf_export_wisdom_to_string();
Chris@215 418 if (cwisdom) {
Chris@215 419 settings.setValue("wisdom", cwisdom);
Chris@215 420 fftwf_free(cwisdom);
Chris@215 421 }
Chris@267 422 #ifdef HAVE_FFTW3
Chris@267 423 cwisdom = fftw_export_wisdom_to_string();
Chris@267 424 if (cwisdom) {
Chris@267 425 settings.setValue("wisdom_d", cwisdom);
Chris@267 426 fftw_free(cwisdom);
Chris@267 427 }
Chris@267 428 #endif
Chris@267 429 settings.endGroup();
Chris@215 430 #endif
Chris@215 431
Chris@222 432 delete gui;
Chris@222 433
Chris@0 434 return rv;
Chris@0 435 }