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| |
| #include "qvideooutputorientationhandler_p.h" |
| |
| #include <QGuiApplication> |
| #include <QScreen> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QVideoOutputOrientationHandler::QVideoOutputOrientationHandler(QObject *parent) |
| : QObject(parent) |
| , m_currentOrientation(0) |
| { |
| QScreen *screen = QGuiApplication::primaryScreen(); |
| |
| // we want to be informed about all orientation changes |
| screen->setOrientationUpdateMask(Qt::PortraitOrientation|Qt::LandscapeOrientation |
| |Qt::InvertedPortraitOrientation|Qt::InvertedLandscapeOrientation); |
| |
| connect(screen, SIGNAL(orientationChanged(Qt::ScreenOrientation)), |
| this, SLOT(screenOrientationChanged(Qt::ScreenOrientation))); |
| |
| screenOrientationChanged(screen->orientation()); |
| } |
| |
| int QVideoOutputOrientationHandler::currentOrientation() const |
| { |
| return m_currentOrientation; |
| } |
| |
| void QVideoOutputOrientationHandler::screenOrientationChanged(Qt::ScreenOrientation orientation) |
| { |
| const QScreen *screen = QGuiApplication::primaryScreen(); |
| |
| const int angle = (360 - screen->angleBetween(screen->nativeOrientation(), orientation)) % 360; |
| |
| if (angle == m_currentOrientation) |
| return; |
| |
| m_currentOrientation = angle; |
| emit orientationChanged(m_currentOrientation); |
| } |
| |
| QT_END_NAMESPACE |