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| void | setTargetWindow (QWindow *window, const QRect &nativeTargetGeometry) |
| |
| void | setTargetContext (QOpenGLContext *context) |
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| void | setRotation (int degrees) |
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| QOpenGLContext * | context () const |
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| QWindow * | targetWindow () const |
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| QRect | nativeTargetGeometry () const |
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| void | update () |
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| QImage | grab () |
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| bool | grabToFrameBufferObject (QOpenGLFramebufferObject *fbo, GrabOrientation orientation=Flipped) |
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| QList< QOpenGLCompositorWindow * > | windows () const |
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| void | addWindow (QOpenGLCompositorWindow *window) |
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| void | removeWindow (QOpenGLCompositorWindow *window) |
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| void | moveToTop (QOpenGLCompositorWindow *window) |
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| void | changeWindowIndex (QOpenGLCompositorWindow *window, int newIdx) |
| |
| Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| | Constructs an object with parent object parent.
|
| |
| virtual | ~QObject () |
| | Destroys the object, deleting all its child objects.
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| |
| virtual bool | event (QEvent *event) |
| | This virtual function receives events to an object and should return true if the event e was recognized and processed.
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| |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| | Filters events if this object has been installed as an event filter for the watched object.
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| |
| QString | objectName () const |
| |
| Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| | Sets the object's name to name.
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| |
| void | setObjectName (QAnyStringView name) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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| |
| QBindable< QString > | bindableObjectName () |
| |
| bool | isWidgetType () const |
| | Returns true if the object is a widget; otherwise returns false.
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| |
| bool | isWindowType () const |
| | Returns true if the object is a window; otherwise returns false.
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| |
| bool | isQuickItemType () const |
| | Returns true if the object is a QQuickItem; otherwise returns false.
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| |
| bool | signalsBlocked () const noexcept |
| | Returns true if signals are blocked; otherwise returns false.
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| |
| bool | blockSignals (bool b) noexcept |
| | If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
|
| |
| QThread * | thread () const |
| | Returns the thread in which the object lives.
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| |
| bool | moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL) |
| | Changes the thread affinity for this object and its children and returns true on success.
|
| |
| int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
| | This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
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| |
| int | startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| |
| void | killTimer (int id) |
| | Kills the timer with timer identifier, id.
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| |
| void | killTimer (Qt::TimerId id) |
| |
| template<typename T > |
| T | findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
|
| |
| template<typename T > |
| QList< T > | findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
|
| |
| template<typename T > |
| T | findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| template<typename T > |
| QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| const QObjectList & | children () const |
| | Returns a list of child objects.
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| |
| void | setParent (QObject *parent) |
| | Makes the object a child of parent.
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| |
| void | installEventFilter (QObject *filterObj) |
| | Installs an event filter filterObj on this object.
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| |
| void | removeEventFilter (QObject *obj) |
| | Removes an event filter object obj from this object.
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| |
| QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| |
| bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
| |
| bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
| |
| void | dumpObjectTree () const |
| | Dumps a tree of children to the debug output.
|
| |
| void | dumpObjectInfo () const |
| | Dumps information about signal connections, etc.
|
| |
| bool | setProperty (const char *name, const QVariant &value) |
| | Sets the value of the object's name property to value.
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| |
| bool | setProperty (const char *name, QVariant &&value) |
| |
| QVariant | property (const char *name) const |
| | Returns the value of the object's name property.
|
| |
| QList< QByteArray > | dynamicPropertyNames () const |
| |
| QBindingStorage * | bindingStorage () |
| |
| const QBindingStorage * | bindingStorage () const |
| |
| QObject * | parent () const |
| | Returns a pointer to the parent object.
|
| |
| bool | inherits (const char *classname) const |
| | Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
|
| |
|
| static QOpenGLCompositor * | instance () |
| |
| static void | destroy () |
| |
| static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| | \threadsafe
|
| |
| static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| |
| template<typename Func1 , typename Func2 > |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection) |
| |
| template<typename Func1 , typename Func2 > |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
| |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| | \threadsafe
|
| |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| |
| static bool | disconnect (const QMetaObject::Connection &) |
| | Disconnect a connection.
|
| |
| template<typename Func1 , typename Func2 > |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot) |
| |
| template<typename Func1 > |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
| |
A generic OpenGL-based compositor.
- Since
- 5.4
This class provides a lightweight compositor that maintains the basic stacking order of windows and composites them by drawing textured quads via OpenGL.
It it meant to be used by platform plugins that run without a windowing system.
It is up to the platform plugin to manage the lifetime of the compositor (instance(), destroy()), set the correct destination context and window as early as possible (setTarget()), register the composited windows as they are shown, activated, raised and lowered (addWindow(), moveToTop(), etc.), and to schedule repaints (update()).
- Note
- To get support for QWidget-based windows, just use QOpenGLCompositorBackingStore. It will automatically create textures from the raster-rendered content and trigger the necessary repaints.
Definition at line 45 of file qopenglcompositor_p.h.
Inheritance diagram for QOpenGLCompositor:
1.12.0