Remove some unnecessary indirection.
[profile/ivi/qtdeclarative.git] / tools / qmlscene / main.cpp
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41
42 #include <QtCore/qdebug.h>
43 #include <QtCore/qabstractanimation.h>
44 #include <QtCore/qdir.h>
45 #include <QtCore/qmath.h>
46 #include <QtCore/qdatetime.h>
47
48 #include <QtGui/QGuiApplication>
49
50 #include <QtQml/qqml.h>
51 #include <QtQml/qqmlengine.h>
52 #include <QtQml/qqmlcomponent.h>
53 #include <QtQml/qqmlcontext.h>
54
55 #include <QtQuick/qquickitem.h>
56 #include <QtQuick/qquickview.h>
57
58 #include <private/qabstractanimation_p.h>
59
60 #ifdef QT_WIDGETS_LIB
61 #include <QtWidgets/QApplication>
62 #include <QtWidgets/QFileDialog>
63 #endif
64
65
66 #ifdef QML_RUNTIME_TESTING
67 class RenderStatistics
68 {
69 public:
70     static void updateStats();
71     static void printTotalStats();
72 private:
73     static QVector<qreal> timePerFrame;
74     static QVector<int> timesPerFrames;
75 };
76
77 QVector<qreal> RenderStatistics::timePerFrame;
78 QVector<int> RenderStatistics::timesPerFrames;
79
80 void RenderStatistics::updateStats()
81 {
82     static QTime time;
83     static int frames;
84     static int lastTime;
85
86     if (frames == 0) {
87         time.start();
88     } else {
89         int elapsed = time.elapsed();
90         timesPerFrames.append(elapsed - lastTime);
91         lastTime = elapsed;
92
93         if (elapsed > 5000) {
94             qreal avgtime = elapsed / (qreal) frames;
95             qreal var = 0;
96             for (int i = 0; i < timesPerFrames.size(); ++i) {
97                 qreal diff = timesPerFrames.at(i) - avgtime;
98                 var += diff * diff;
99             }
100             var /= timesPerFrames.size();
101
102             qDebug("Average time per frame: %f ms (%i fps), std.dev: %f ms", avgtime, qRound(1000. / avgtime), qSqrt(var));
103
104             timePerFrame.append(avgtime);
105             timesPerFrames.clear();
106             time.start();
107             lastTime = 0;
108             frames = 0;
109         }
110     }
111     ++frames;
112 }
113
114 void RenderStatistics::printTotalStats()
115 {
116     int count = timePerFrame.count();
117     if (count == 0)
118         return;
119
120     qreal minTime = 0;
121     qreal maxTime = 0;
122     qreal avg = 0;
123     for (int i = 0; i < count; ++i) {
124         minTime = minTime == 0 ? timePerFrame.at(i) : qMin(minTime, timePerFrame.at(i));
125         maxTime = qMax(maxTime, timePerFrame.at(i));
126         avg += timePerFrame.at(i);
127     }
128     avg /= count;
129
130     qDebug(" ");
131     qDebug("----- Statistics -----");
132     qDebug("Average time per frame: %f ms (%i fps)", avg, qRound(1000. / avg));
133     qDebug("Best time per frame: %f ms (%i fps)", minTime, int(1000 / minTime));
134     qDebug("Worst time per frame: %f ms (%i fps)", maxTime, int(1000 / maxTime));
135     qDebug("----------------------");
136     qDebug(" ");
137 }
138 #endif
139
140 struct Options
141 {
142     Options()
143         : originalQml(false)
144         , originalQmlRaster(false)
145         , maximized(false)
146         , fullscreen(false)
147         , transparent(false)
148         , clip(false)
149         , versionDetection(true)
150         , slowAnimations(false)
151         , quitImmediately(false)
152         , resizeViewToRootItem(false)
153     {
154     }
155
156     QUrl file;
157     bool originalQml;
158     bool originalQmlRaster;
159     bool maximized;
160     bool fullscreen;
161     bool transparent;
162     bool scenegraphOnGraphicsview;
163     bool clip;
164     bool versionDetection;
165     bool slowAnimations;
166     bool quitImmediately;
167     bool resizeViewToRootItem;
168 };
169
170 #if defined(QMLSCENE_BUNDLE)
171 Q_DECLARE_METATYPE(QFileInfo);
172 QFileInfoList findQmlFiles(const QString &dirName)
173 {
174     QDir dir(dirName);
175
176     QFileInfoList ret;
177     if (dir.exists()) {
178         QFileInfoList fileInfos = dir.entryInfoList(QStringList() << "*.qml",
179                                                     QDir::Files | QDir::AllDirs | QDir::NoDotAndDotDot);
180
181         foreach (QFileInfo fileInfo, fileInfos) {
182             if (fileInfo.isDir())
183                 ret += findQmlFiles(fileInfo.filePath());
184             else if (fileInfo.fileName().length() > 0 && fileInfo.fileName().at(0).isLower())
185                 ret.append(fileInfo);
186         }
187     }
188
189     return ret;
190 }
191
192 static int displayOptionsDialog(Options *options)
193 {
194     QDialog dialog;
195
196     QFormLayout *layout = new QFormLayout(&dialog);
197
198     QComboBox *qmlFileComboBox = new QComboBox(&dialog);
199     QFileInfoList fileInfos = findQmlFiles(":/bundle") + findQmlFiles("./qmlscene-resources");
200
201     foreach (QFileInfo fileInfo, fileInfos)
202         qmlFileComboBox->addItem(fileInfo.dir().dirName() + "/" + fileInfo.fileName(), QVariant::fromValue(fileInfo));
203
204     QCheckBox *originalCheckBox = new QCheckBox(&dialog);
205     originalCheckBox->setText("Use original QML viewer");
206     originalCheckBox->setChecked(options->originalQml);
207
208     QCheckBox *fullscreenCheckBox = new QCheckBox(&dialog);
209     fullscreenCheckBox->setText("Start fullscreen");
210     fullscreenCheckBox->setChecked(options->fullscreen);
211
212     QCheckBox *maximizedCheckBox = new QCheckBox(&dialog);
213     maximizedCheckBox->setText("Start maximized");
214     maximizedCheckBox->setChecked(options->maximized);
215
216     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
217                                                        Qt::Horizontal,
218                                                        &dialog);
219     QObject::connect(buttonBox, SIGNAL(accepted()), &dialog, SLOT(accept()));
220     QObject::connect(buttonBox, SIGNAL(rejected()), &dialog, SLOT(reject()));
221
222     layout->addRow("Qml file:", qmlFileComboBox);
223     layout->addWidget(originalCheckBox);
224     layout->addWidget(maximizedCheckBox);
225     layout->addWidget(fullscreenCheckBox);
226     layout->addWidget(buttonBox);
227
228     int result = dialog.exec();
229     if (result == QDialog::Accepted) {
230         QVariant variant = qmlFileComboBox->itemData(qmlFileComboBox->currentIndex());
231         QFileInfo fileInfo = variant.value<QFileInfo>();
232
233         if (fileInfo.canonicalFilePath().startsWith(":"))
234             options->file = QUrl("qrc" + fileInfo.canonicalFilePath());
235         else
236             options->file = QUrl::fromLocalFile(fileInfo.canonicalFilePath());
237         options->originalQml = originalCheckBox->isChecked();
238         options->maximized = maximizedCheckBox->isChecked();
239         options->fullscreen = fullscreenCheckBox->isChecked();
240     }
241     return result;
242 }
243 #endif
244
245 static bool checkVersion(const QUrl &url)
246 {
247     if (!qgetenv("QMLSCENE_IMPORT_NAME").isEmpty())
248         qWarning("QMLSCENE_IMPORT_NAME is no longer supported.");
249
250     QString fileName = url.toLocalFile();
251     if (fileName.isEmpty()) {
252         qWarning("qmlscene: filename required.");
253         return false;
254     }
255
256     QFile f(fileName);
257     if (!f.open(QFile::ReadOnly | QFile::Text)) {
258         qWarning("qmlscene: failed to check version of file '%s', could not open...",
259                  qPrintable(fileName));
260         return false;
261     }
262
263     QRegExp quick1("^\\s*import +QtQuick +1\\.\\w*");
264     QRegExp qt47("^\\s*import +Qt +4\\.7");
265
266     QTextStream stream(&f);
267     bool codeFound= false;
268     while (!codeFound) {
269         QString line = stream.readLine();
270         if (line.contains("{")) {
271             codeFound = true;
272         } else {
273             QString import;
274             if (quick1.indexIn(line) >= 0)
275                 import = quick1.cap(0).trimmed();
276             else if (qt47.indexIn(line) >= 0)
277                 import = qt47.cap(0).trimmed();
278
279             if (!import.isNull()) {
280                 qWarning("qmlscene: '%s' is no longer supported.\n"
281                          "Use qmlviewer to load file '%s'.",
282                          qPrintable(import),
283                          qPrintable(fileName));
284                 return false;
285             }
286         }
287     }
288
289     return true;
290 }
291
292 static void displayFileDialog(Options *options)
293 {
294 #if defined(QT_WIDGETS_LIB) && !defined(QT_NO_FILEDIALOG)
295     QString fileName = QFileDialog::getOpenFileName(0, "Open QML file", QString(), "QML Files (*.qml)");
296     if (!fileName.isEmpty()) {
297         QFileInfo fi(fileName);
298         options->file = QUrl::fromLocalFile(fi.canonicalFilePath());
299     }
300 #else
301     Q_UNUSED(options);
302     qWarning("No filename specified...");
303 #endif
304 }
305
306 static void loadDummyDataFiles(QQmlEngine &engine, const QString& directory)
307 {
308     QDir dir(directory+"/dummydata", "*.qml");
309     QStringList list = dir.entryList();
310     for (int i = 0; i < list.size(); ++i) {
311         QString qml = list.at(i);
312         QFile f(dir.filePath(qml));
313         f.open(QIODevice::ReadOnly);
314         QByteArray data = f.readAll();
315         QQmlComponent comp(&engine);
316         comp.setData(data, QUrl());
317         QObject *dummyData = comp.create();
318
319         if(comp.isError()) {
320             QList<QQmlError> errors = comp.errors();
321             foreach (const QQmlError &error, errors)
322                 qWarning() << error;
323         }
324
325         if (dummyData) {
326             qWarning() << "Loaded dummy data:" << dir.filePath(qml);
327             qml.truncate(qml.length()-4);
328             engine.rootContext()->setContextProperty(qml, dummyData);
329             dummyData->setParent(&engine);
330         }
331     }
332 }
333
334 static void usage()
335 {
336     qWarning("Usage: qmlscene [options] <filename>");
337     qWarning(" ");
338     qWarning(" options:");
339     qWarning("  --maximized ............................... run maximized");
340     qWarning("  --fullscreen .............................. run fullscreen");
341     qWarning("  --transparent ............................. Make the window transparent");
342     qWarning("  --no-multisample .......................... Disable multisampling (anti-aliasing)");
343     qWarning("  --no-version-detection .................... Do not try to detect the version of the .qml file");
344     qWarning("  --slow-animations ......................... Run all animations in slow motion");
345     qWarning("  --resize-to-root .......................... Resize the window to the size of the root item");
346     qWarning("  --quit .................................... Quit immediately after starting");
347     qWarning("  -I <path> ................................. Add <path> to the list of import paths");
348     qWarning("  -B <name> <file> .......................... Add a named bundle");
349
350     qWarning(" ");
351     exit(1);
352 }
353
354 int main(int argc, char ** argv)
355 {
356     Options options;
357
358     QStringList imports;
359     QList<QPair<QString, QString> > bundles;
360     for (int i = 1; i < argc; ++i) {
361         if (*argv[i] != '-' && QFileInfo(QFile::decodeName(argv[i])).exists()) {
362             options.file = QUrl::fromLocalFile(argv[i]);
363         } else {
364             const QString lowerArgument = QString::fromLatin1(argv[i]).toLower();
365             if (lowerArgument == QLatin1String("--maximized"))
366                 options.maximized = true;
367             else if (lowerArgument == QLatin1String("--fullscreen"))
368                 options.fullscreen = true;
369             else if (lowerArgument == QLatin1String("--transparent"))
370                 options.transparent = true;
371             else if (lowerArgument == QLatin1String("--clip"))
372                 options.clip = true;
373             else if (lowerArgument == QLatin1String("--no-version-detection"))
374                 options.versionDetection = false;
375             else if (lowerArgument == QLatin1String("--slow-animations"))
376                 options.slowAnimations = true;
377             else if (lowerArgument == QLatin1String("--quit"))
378                 options.quitImmediately = true;
379             else if (lowerArgument == QLatin1String("--resize-to-root"))
380                 options.resizeViewToRootItem = true;
381             else if (lowerArgument == QLatin1String("-i") && i + 1 < argc)
382                 imports.append(QString::fromLatin1(argv[++i]));
383             else if (lowerArgument == QLatin1String("-b") && i + 2 < argc) {
384                 QString name = QString::fromLatin1(argv[++i]);
385                 QString file = QString::fromLatin1(argv[++i]);
386                 bundles.append(qMakePair(name, file));
387             } else if (lowerArgument == QLatin1String("--help")
388                      || lowerArgument == QLatin1String("-help")
389                      || lowerArgument == QLatin1String("--h")
390                      || lowerArgument == QLatin1String("-h"))
391                 usage();
392         }
393     }
394
395 #ifdef QT_WIDGETS_LIB
396     QApplication app(argc, argv);
397 #else
398     QGuiApplication app(argc, argv);
399 #endif
400     app.setApplicationName("QtQmlViewer");
401     app.setOrganizationName("Nokia");
402     app.setOrganizationDomain("nokia.com");
403
404     QUnifiedTimer::instance()->setSlowModeEnabled(options.slowAnimations);
405
406     if (options.file.isEmpty())
407 #if defined(QMLSCENE_BUNDLE)
408         displayOptionsDialog(&options);
409 #else
410         displayFileDialog(&options);
411 #endif
412
413     QQmlEngine *engine = 0;
414
415     int exitCode = 0;
416
417     if (!options.file.isEmpty()) {
418         if (!options.versionDetection || checkVersion(options.file)) {
419             QQuickView qxView;
420             engine = qxView.engine();
421             for (int i = 0; i < imports.size(); ++i)
422                 engine->addImportPath(imports.at(i));
423             for (int i = 0; i < bundles.size(); ++i)
424                 engine->addNamedBundle(bundles.at(i).first, bundles.at(i).second);
425             if (options.file.isLocalFile()) {
426                 QFileInfo fi(options.file.toLocalFile());
427                 loadDummyDataFiles(*engine, fi.path());
428             }
429             qxView.setSource(options.file);
430
431             QObject::connect(engine, SIGNAL(quit()), QCoreApplication::instance(), SLOT(quit()));
432
433             if (options.resizeViewToRootItem)
434                 qxView.setResizeMode(QQuickView::SizeViewToRootObject);
435             else
436                 qxView.setResizeMode(QQuickView::SizeRootObjectToView);
437
438             if (options.transparent) {
439                 QSurfaceFormat surfaceFormat;
440                 surfaceFormat.setAlphaBufferSize(8);
441                 qxView.setFormat(surfaceFormat);
442                 qxView.setClearBeforeRendering(true);
443                 qxView.setClearColor(QColor(Qt::transparent));
444                 qxView.setWindowFlags(Qt::FramelessWindowHint);
445             }
446
447             qxView.setWindowFlags(Qt::Window | Qt::WindowSystemMenuHint | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint);
448
449             if (options.fullscreen)
450                 qxView.showFullScreen();
451             else if (options.maximized)
452                 qxView.showMaximized();
453             else
454                 qxView.show();
455
456             if (options.quitImmediately)
457                 QMetaObject::invokeMethod(QCoreApplication::instance(), "quit", Qt::QueuedConnection);
458
459             exitCode = app.exec();
460
461 #ifdef QML_RUNTIME_TESTING
462             RenderStatistics::printTotalStats();
463 #endif
464         }
465     }
466
467     return exitCode;
468 }
469