main.cpp Example File

multimedia/video/qmlvideofx/main.cpp
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#include <QtCore/QStandardPaths> #include <QtCore/QStringList> #include <QtQml/QQmlContext> #include <QtGui/QGuiApplication> #include <QtQuick/QQuickItem> #include <QtQuick/QQuickView> #include "filereader.h" #include "trace.h" #ifdef PERFORMANCEMONITOR_SUPPORT #include "performancemonitordeclarative.h" #endif int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); #ifdef PERFORMANCEMONITOR_SUPPORT PerformanceMonitor::qmlRegisterTypes(); #endif QUrl fileName; qreal volume = 0.5; QStringList args = app.arguments(); #ifdef PERFORMANCEMONITOR_SUPPORT PerformanceMonitor::State performanceMonitorState; #endif for (int i = 1; i < args.size(); ++i) { const QByteArray arg = args.at(i).toUtf8(); if (arg.startsWith('-')) { if ("-volume" == arg) { if (i + 1 < args.size()) volume = 0.01 * args.at(++i).toInt(); else qtTrace() << "Option \"-volume\" takes a value"; } #ifdef PERFORMANCEMONITOR_SUPPORT else if (performanceMonitorState.parseArgument(arg)) { // Do nothing } #endif else { qtTrace() << "Option" << arg << "ignored"; } } else { if (fileName.isEmpty()) fileName = QUrl::fromLocalFile(arg); else qtTrace() << "Argument" << arg << "ignored"; } } QQuickView viewer; viewer.setSource(QUrl(QLatin1String("qrc:///qml/qmlvideofx/Main.qml"))); QQuickItem *rootObject = viewer.rootObject(); rootObject->setProperty("fileName", fileName); viewer.rootObject()->setProperty("volume", volume); #ifdef PERFORMANCEMONITOR_SUPPORT if (performanceMonitorState.valid) { rootObject->setProperty("perfMonitorsLogging", performanceMonitorState.logging); rootObject->setProperty("perfMonitorsVisible", performanceMonitorState.visible); } QObject::connect(&viewer, SIGNAL(afterRendering()), rootObject, SLOT(qmlFramePainted())); #endif FileReader fileReader; viewer.rootContext()->setContextProperty("fileReader", &fileReader); const QUrl appPath(QUrl::fromLocalFile(app.applicationDirPath())); const QStringList picturesLocation = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation); const QUrl imagePath = picturesLocation.isEmpty() ? appPath : QUrl::fromLocalFile(picturesLocation.first()); viewer.rootContext()->setContextProperty("imagePath", imagePath); const QStringList moviesLocation = QStandardPaths::standardLocations(QStandardPaths::MoviesLocation); const QUrl videoPath = moviesLocation.isEmpty() ? appPath : QUrl::fromLocalFile(moviesLocation.first()); viewer.rootContext()->setContextProperty("videoPath", videoPath); viewer.setTitle("qmlvideofx"); viewer.setFlags(Qt::Window | Qt::WindowSystemMenuHint | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint); viewer.setMinimumSize(QSize(1280, 720)); viewer.setResizeMode(QQuickView::SizeRootObjectToView); viewer.show(); // Delay invocation of init until the event loop has started, to work around // a GL context issue on Harmattan: without this, we get the following error // when the first ShaderEffectItem is created: // "QGLShaderProgram::addShader: Program and shader are not associated with same context" QMetaObject::invokeMethod(viewer.rootObject(), "init", Qt::QueuedConnection); return app.exec(); }

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