QSGRootNode Class Reference

The QSGRootNode is the toplevel root of any scene graph. More...

#include <qsgnode.h>

Inheritance diagram for QSGRootNode:

Collaboration diagram for QSGRootNode:

Public Member Functions
	QSGRootNode ()
	Creates a new root node.
	~QSGRootNode () override
	Deletes the root node.
Public Member Functions inherited from QSGNode
	QSGNode ()
	Constructs a new node.
virtual	~QSGNode ()
	Destroys the node.
QSGNode *	parent () const
	Returns the parent node of this node.
void	removeChildNode (QSGNode *node)
	Removes node from this node's list of children.
void	removeAllChildNodes ()
	Removes all child nodes from this node's list of children.
void	prependChildNode (QSGNode *node)
	Prepends node to this node's the list of children.
void	appendChildNode (QSGNode *node)
	Appends node to this node's list of children.
void	insertChildNodeBefore (QSGNode *node, QSGNode *before)
	Inserts node to this node's list of children before the node specified with before.
void	insertChildNodeAfter (QSGNode *node, QSGNode *after)
	Inserts node to this node's list of children after the node specified with after.
void	reparentChildNodesTo (QSGNode *newParent)
int	childCount () const
	Returns the number of child nodes.
QSGNode *	childAtIndex (int i) const
	Returns the child at index i.
QSGNode *	firstChild () const
	Returns the first child of this node.
QSGNode *	lastChild () const
	Returns the last child of this node.
QSGNode *	nextSibling () const
	Returns the node after this in the parent's list of children.
QSGNode *	previousSibling () const
	Returns the node before this in the parent's list of children.
NodeType	type () const
	Returns the type of this node.
QT_DEPRECATED void	clearDirty ()
void	markDirty (DirtyState bits)
	Notifies all connected renderers that the node has dirty bits.
QT_DEPRECATED DirtyState	dirtyState () const
virtual bool	isSubtreeBlocked () const
	Returns whether this node and its subtree is available for use.
Flags	flags () const
	Returns the set of flags for this node.
void	setFlag (Flag, bool=true)
	Sets the flag f on this node if enabled is true; otherwise clears the flag.
void	setFlags (Flags, bool=true)
	Sets the flags f on this node if enabled is true; otherwise clears the flags.
virtual void	preprocess ()
	Override this function to do processing on the node before it is rendered.

Friends
class	QSGAbstractRenderer
class	QSGNode
class	QSGGeometryNode

Additional Inherited Members
Public Types inherited from QSGNode
enum	NodeType {   BasicNodeType , GeometryNodeType , TransformNodeType , ClipNodeType ,   OpacityNodeType , RootNodeType , RenderNodeType }
	Can be used to figure out the type of node. More...
enum	Flag {   OwnedByParent = 0x0001 , UsePreprocess = 0x0002 , OwnsGeometry = 0x00010000 , OwnsMaterial = 0x00020000 ,   OwnsOpaqueMaterial = 0x00040000 , IsVisitableNode = 0x01000000 }
	The QSGNode::Flag enum describes flags on the QSGNode. More...
enum	DirtyStateBit {   DirtySubtreeBlocked = 0x0080 , DirtyMatrix = 0x0100 , DirtyNodeAdded = 0x0400 , DirtyNodeRemoved = 0x0800 ,   DirtyGeometry = 0x1000 , DirtyMaterial = 0x2000 , DirtyOpacity = 0x4000 , DirtyForceUpdate = 0x8000 ,   DirtyUsePreprocess = UsePreprocess , DirtyPropagationMask }
	Used in QSGNode::markDirty() to indicate how the scene graph has changed. More...
Protected Member Functions inherited from QSGNode
	QSGNode (NodeType type)
	Constructs a new node with the given node type.
	QSGNode (QSGNodePrivate &dd, NodeType type)
	Constructs a new node with the given node type.
Protected Attributes inherited from QSGNode
QScopedPointer< QSGNodePrivate >	d_ptr

Detailed Description

The QSGRootNode is the toplevel root of any scene graph.

The root node is used to attach a scene graph to a renderer.

Definition at line 261 of file qsgnode.h.

Constructor & Destructor Documentation

QSGRootNode()

QSGRootNode::QSGRootNode

(

)

Creates a new root node.

Definition at line 1210 of file qsgnode.cpp.

~QSGRootNode()

QSGRootNode::~QSGRootNode ( )

override

Deletes the root node.

When a root node is deleted it removes itself from all of renderers that are referencing it.

Definition at line 1223 of file qsgnode.cpp.

References QList< T >::constLast(), QList< T >::isEmpty(), and QSGAbstractRenderer::setRootNode().

Here is the call graph for this function:

Friends And Related Symbol Documentation

QSGAbstractRenderer

friend class QSGAbstractRenderer

friend

Definition at line 270 of file qsgnode.h.

QSGGeometryNode

friend class QSGGeometryNode

friend

Definition at line 272 of file qsgnode.h.

QSGNode

friend class QSGNode

friend

Definition at line 271 of file qsgnode.h.

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The documentation for this class was generated from the following files:

• qtdeclarative/src/quick/scenegraph/coreapi/qsgnode.h
• qtdeclarative/src/quick/scenegraph/coreapi/qsgnode.cpp