WeakNodePath Class Reference

This class is a wrapper around a NodePath that, unlike the actual NodePath class, doesn't hold a reference count to the node. More...

#include "weakNodePath.h"

Public Member Functions
	WeakNodePath (const NodePath &node_path)
	WeakNodePath (const WeakNodePath &copy)
void	clear ()
	Sets this NodePath to the empty NodePath. More...
int	compare_to (const NodePath &other) const
int	compare_to (const WeakNodePath &other) const
int	get_key () const
NodePath	get_node_path () const
	Returns the NodePath held within this object, or an empty NodePath with the error flag set if the object was deleted. More...
bool	is_empty () const
	Returns true if the NodePath contains no nodes, or if it has been deleted. More...
bool	operator != (const NodePath &other) const
bool	operator != (const WeakNodePath &other) const
	operator bool () const
	Returns true if this NodePath points to a valid, non-null node. More...
bool	operator< (const NodePath &other) const
bool	operator< (const WeakNodePath &other) const
void	operator= (const NodePath &node_path)
void	operator= (const WeakNodePath &copy)
bool	operator== (const NodePath &other) const
bool	operator== (const WeakNodePath &other) const
void	output (std::ostream &out) const
	PT (PandaNode) node() const
bool	was_deleted () const
	Returns true if the NodePath we were referencing has been quietly deleted outside of the WeakNodePath. More...

Friends
class	NodePath

Detailed Description

This class is a wrapper around a NodePath that, unlike the actual NodePath class, doesn't hold a reference count to the node.

Thus the node may be detached from the scene graph and destructed at any time.

You can call is_valid() or was_deleted() at any time to determine whether the node is still around; if it is, get_node_path() will return the associated NodePath.

Definition at line 32 of file weakNodePath.h.

Member Function Documentation

clear()

void WeakNodePath::clear ( )

inline

Sets this NodePath to the empty NodePath.

It will no longer point to any node.

Definition at line 64 of file weakNodePath.I.

get_node_path()

NodePath WeakNodePath::get_node_path ( ) const

inline

Returns the NodePath held within this object, or an empty NodePath with the error flag set if the object was deleted.

Definition at line 99 of file weakNodePath.I.

is_empty()

bool WeakNodePath::is_empty ( ) const

inline

Returns true if the NodePath contains no nodes, or if it has been deleted.

Definition at line 81 of file weakNodePath.I.

operator bool()

WeakNodePath::operator bool ( ) const

inline

Returns true if this NodePath points to a valid, non-null node.

Definition at line 73 of file weakNodePath.I.

was_deleted()

bool WeakNodePath::was_deleted ( ) const

inline

Returns true if the NodePath we were referencing has been quietly deleted outside of the WeakNodePath.

Definition at line 90 of file weakNodePath.I.

---

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

• panda/src/pgraph/weakNodePath.h
• panda/src/pgraph/weakNodePath.cxx
• panda/src/pgraph/weakNodePath.I