The renderer class is the abstract baseclass used for rendering the QML scene graph.
More...
|
| | QSGRenderer (QSGRenderContext *context) |
| |
| virtual | ~QSGRenderer () |
| |
| QMatrix4x4 | currentProjectionMatrix (int index) const |
| |
| QMatrix4x4 | currentModelViewMatrix () const |
| |
| QMatrix4x4 | currentCombinedMatrix (int index) const |
| |
| qreal | currentOpacity () const |
| |
| qreal | determinant () const |
| |
| void | setDevicePixelRatio (qreal ratio) |
| |
| qreal | devicePixelRatio () const |
| |
| QSGRenderContext * | context () const |
| |
| bool | isMirrored () const |
| |
| void | renderScene () override |
| | Renders the scene.
|
| |
| void | prepareSceneInline () override |
| |
| void | renderSceneInline () override |
| |
| void | nodeChanged (QSGNode *node, QSGNode::DirtyState state) override |
| | Updates internal data structures and emits the sceneGraphChanged() signal.
|
| |
| QSGNodeUpdater * | nodeUpdater () const |
| | Returns the node updater that this renderer uses to update states in the scene graph.
|
| |
| void | setNodeUpdater (QSGNodeUpdater *updater) |
| | Sets the node updater that this renderer uses to update states in the scene graph.
|
| |
| QSGMaterialShader::RenderState | state (QSGMaterialShader::RenderState::DirtyStates dirty) const |
| |
| virtual void | setVisualizationMode (const QByteArray &) |
| |
| virtual bool | hasVisualizationModeWithContinuousUpdate () const |
| |
| virtual void | releaseCachedResources () |
| |
| void | clearChangedFlag () |
| |
| QByteArray * | currentUniformData () const |
| |
| QRhiResourceUpdateBatch * | currentResourceUpdateBatch () const |
| |
| QRhi * | currentRhi () const |
| |
| void | setRenderTarget (const QSGRenderTarget &rt) |
| |
| const QSGRenderTarget & | renderTarget () const |
| |
| void | setRenderPassRecordingCallbacks (QSGRenderContext::RenderPassCallback start, QSGRenderContext::RenderPassCallback end, void *userData) |
| |
| | ~QSGAbstractRenderer () override |
| |
| void | setRootNode (QSGRootNode *node) |
| | Sets the node as the root of the QSGNode scene that you want to render.
|
| |
| QSGRootNode * | rootNode () const |
| | Returns the root of the QSGNode scene.
|
| |
| void | setDeviceRect (const QRect &rect) |
| | Sets rect as the geometry of the surface being rendered to.
|
| |
| void | setDeviceRect (const QSize &size) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the size of the surface being rendered to.
|
| |
| QRect | deviceRect () const |
| | Returns the device rect of the surface being rendered to.
|
| |
| void | setViewportRect (const QRect &rect) |
| | Sets rect as the geometry of the viewport to render on the surface.
|
| |
| void | setViewportRect (const QSize &size) |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the size of the viewport to render on the surface.
|
| |
| QRect | viewportRect () const |
| | Returns the rect of the viewport to render.
|
| |
| void | setProjectionMatrixToRect (const QRectF &rect) |
| | Convenience method that calls setProjectionMatrix() with an orthographic matrix generated from rect.
|
| |
| void | setProjectionMatrixToRect (const QRectF &rect, MatrixTransformFlags flags) |
| | Convenience method that calls setProjectionMatrix() with an orthographic matrix generated from rect.
|
| |
| void | setProjectionMatrixToRect (const QRectF &rect, MatrixTransformFlags flags, bool nativeNDCFlipY) |
| | Convenience method that calls setProjectionMatrix() with an orthographic matrix generated from rect.
|
| |
| void | setProjectionMatrix (const QMatrix4x4 &matrix, int index=0) |
| | Use matrix to project the QSGNode coordinates onto surface pixels.
|
| |
| void | setProjectionMatrixWithNativeNDC (const QMatrix4x4 &matrix, int index=0) |
| |
| QMatrix4x4 | projectionMatrix (int index) const |
| | Returns the projection matrix.
|
| |
| QMatrix4x4 | projectionMatrixWithNativeNDC (int index) const |
| |
| int | projectionMatrixCount () const |
| |
| int | projectionMatrixWithNativeNDCCount () const |
| |
| void | setClearColor (const QColor &color) |
| | Sets the color to clear the framebuffer.
|
| |
| QColor | clearColor () const |
| | Returns the color that clears the framebuffer at the beginning of the rendering.
|
| |
| Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| | Constructs an object with parent object parent.
|
| |
| virtual | ~QObject () |
| | Destroys the object, deleting all its child objects.
|
| |
| 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.
|
| |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| | Filters events if this object has been installed as an event filter for the watched object.
|
| |
| QString | objectName () const |
| |
| Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| | Sets the object's name to name.
|
| |
| 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.
|
| |
| QBindable< QString > | bindableObjectName () |
| |
| bool | isWidgetType () const |
| | Returns true if the object is a widget; otherwise returns false.
|
| |
| bool | isWindowType () const |
| | Returns true if the object is a window; otherwise returns false.
|
| |
| bool | isQuickItemType () const |
| | Returns true if the object is a QQuickItem; otherwise returns false.
|
| |
| bool | signalsBlocked () const noexcept |
| | Returns true if signals are blocked; otherwise returns false.
|
| |
| 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.
|
| |
| 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.
|
| |
| int | startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| |
| void | killTimer (int id) |
| | Kills the timer with timer identifier, id.
|
| |
| 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.
|
| |
| void | setParent (QObject *parent) |
| | Makes the object a child of parent.
|
| |
| void | installEventFilter (QObject *filterObj) |
| | Installs an event filter filterObj on this object.
|
| |
| void | removeEventFilter (QObject *obj) |
| | Removes an event filter object obj from this object.
|
| |
| 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.
|
| |
| 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.
|
| |
|
| enum | MatrixTransformFlag { MatrixTransformFlipY = 0x01
} |
| | Used with setProjectionMatrixToRect() to indicate the expectations towards the generated projection matrix. More...
|
| |
| void | deleteLater () |
| | \threadsafe
|
| |
| void | sceneGraphChanged () |
| | This signal is emitted on the first modification of a node in the tree after the last scene render.
|
| |
| void | destroyed (QObject *=nullptr) |
| | This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
|
| |
| void | objectNameChanged (const QString &objectName, QPrivateSignal) |
| | This signal is emitted after the object's name has been changed.
|
| |
| 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) |
| |
| QString | objectName |
| | the name of this object
|
| |
| template< class T > T | qobject_cast (const QObject *object) |
| | Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
|
| |
| template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| |
| template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| |
| | QObjectList |
| | \macro Q_CLASSINFO(Name, Value)
|
| |
The renderer class is the abstract baseclass used for rendering the QML scene graph.
The renderer is not tied to any particular surface. It expects a context to be current and will render into that surface according to how the device rect, viewport rect and projection transformation are set up.
Rendering is a sequence of steps initiated by calling renderScene(). This will effectively draw the scene graph starting at the root node. The QSGNode::preprocess() function will be called for all the nodes in the graph, followed by an update pass which updates all matrices, opacity, clip states and similar in the graph. Because the update pass is called after preprocess, it is safe to modify the graph during preprocess. To run a custom update pass over the graph, install a custom QSGNodeUpdater using setNodeUpdater(). Once all the graphs dirty states are updated, the virtual render() function is called.
The render() function is implemented by QSGRenderer subclasses to render the graph in the most optimal way for a given hardware.
The renderer can make use of stencil, depth and color buffers in addition to the scissor rect.
Definition at line 60 of file qsgrenderer_p.h.
Inheritance diagram for QSGRenderer:
1.12.0