本文整理汇总了C++中QmlApplicationViewer::setViewportUpdateMode方法的典型用法代码示例。如果您正苦于以下问题：C++ QmlApplicationViewer::setViewportUpdateMode方法的具体用法？C++ QmlApplicationViewer::setViewportUpdateMode怎么用？C++ QmlApplicationViewer::setViewportUpdateMode使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QmlApplicationViewer的用法示例。
在下文中一共展示了QmlApplicationViewer::setViewportUpdateMode方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: main
int main(int argc, char *argv[])
{
// Depending on which is the recommended way for the platform, either use
// opengl graphics system or paint into QGLWidget.
#ifdef SHADEREFFECTS_USE_OPENGL_GRAPHICSSYSTEM
QApplication::setGraphicsSystem("opengl");
#endif
QApplication app(argc, argv);
QmlApplicationViewer viewer;
#ifndef SHADEREFFECTS_USE_OPENGL_GRAPHICSSYSTEM
QGLFormat format = QGLFormat::defaultFormat();
format.setSampleBuffers(false);
format.setSwapInterval(1);
QGLWidget* glWidget = new QGLWidget(format);
glWidget->setAutoFillBackground(false);
viewer.setViewport(glWidget);
#endif
viewer.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
viewer.setAttribute(Qt::WA_OpaquePaintEvent);
viewer.setAttribute(Qt::WA_NoSystemBackground);
viewer.setOrientation(QmlApplicationViewer::ScreenOrientationAuto);
viewer.setMainQmlFile(QLatin1String("qml/shadereffects/main.qml"));
QObject::connect(viewer.engine(), SIGNAL(quit()), &viewer, SLOT(close()));
viewer.showExpanded();
return app.exec();
}示例2: main
int main(int argc, char *argv[])
{
#ifdef USE_OPENGL_GRAPHICS_SYSTEM
QApplication::setGraphicsSystem("opengl");
#endif
QApplication 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.count(); ++i) {
const QString &arg = args.at(i);
if (arg.startsWith('-')) {
if ("-volume" == arg) {
if (i+1 < args.count())
volume = 0.01 * args.at(++i).toInt();
else
qtTrace() << "Option \"-volume\" takes a value";
}
#ifdef PERFORMANCEMONITOR_SUPPORT
else if (PerformanceMonitor::parseArgument(arg, performanceMonitorState)) {
// Do nothing
}
#endif
else {
qtTrace() << "Option" << arg << "ignored";
}
} else {
if (fileName.isEmpty())
fileName = QUrl::fromLocalFile(arg);
else
qtTrace() << "Argument" << arg << "ignored";
}
}
QmlApplicationViewer viewer;
#ifndef USE_OPENGL_GRAPHICS_SYSTEM
QGLFormat format = QGLFormat::defaultFormat();
format.setSampleBuffers(false);
format.setSwapInterval(1);
QGLWidget* glWidget = new QGLWidget(format);
glWidget->setAutoFillBackground(false);
viewer.setViewport(glWidget);
#endif
viewer.setOrientation(QmlApplicationViewer::ScreenOrientationAuto);
viewer.setMainQmlFile(QLatin1String("qml/qmlvideofx/") + MainQmlFile);
viewer.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
QGraphicsObject *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);
}
PaintEventMonitor paintEventMonitor;
paintEventMonitor.setTarget(viewer.viewport());
QObject::connect(&paintEventMonitor, SIGNAL(targetPainted()),
rootObject, SLOT(qmlFramePainted()));
#endif
FileReader fileReader;
viewer.rootContext()->setContextProperty("fileReader", &fileReader);
QString imagePath = "../../images";
const QString picturesLocation = QDesktopServices::storageLocation(QDesktopServices::PicturesLocation);
if (!picturesLocation.isEmpty())
imagePath = picturesLocation;
viewer.rootContext()->setContextProperty("imagePath", imagePath);
QString videoPath;
const QString moviesLocation = QDesktopServices::storageLocation(QDesktopServices::MoviesLocation);
if (!moviesLocation.isEmpty())
videoPath = moviesLocation;
viewer.rootContext()->setContextProperty("videoPath", videoPath);
#ifdef SMALL_SCREEN_PHYSICAL
viewer.setOrientation(QmlApplicationViewer::ScreenOrientationLockLandscape);
viewer.showFullScreen();
#else
viewer.showExpanded();
#endif
// 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);
//.........这里部分代码省略.........