openvrml::grouping_node Class Reference

Abstract base class for grouping nodes. More...

#include <openvrml/node.h>

Inheritance diagram for openvrml::grouping_node:

Public Member Functions

virtual ~grouping_node ()=0 throw ()
 Destroy.
const std::vector
< boost::intrusive_ptr< node > > 
children () const throw ( std::bad_alloc )
 Get the children in the scene graph.
void activate_pointing_device_sensors (double timestamp, bool over, bool active, const double(&p)[3])
 Called in response to user interaction to activate any child pointing device sensor nodes.
- Public Member Functions inherited from openvrml::child_node
virtual ~child_node ()=0 throw ()
 Destructor.
void relocate () throw ( std::bad_alloc )
 Called when the node is relocated to a new position in the scene graph.
void render_child (viewer &v, rendering_context context)
 Render the node.
- Public Member Functions inherited from openvrml::bounded_volume_node
virtual ~bounded_volume_node () throw ()
 Destroy.
const openvrml::bounding_volumebounding_volume () const
 Get this node's bounding volume.
- Public Member Functions inherited from openvrml::node
virtual ~node ()=0 throw ()
 Destructor.
void add_ref () const throw ()
 Increment the reference count.
void remove_ref () const throw ()
 Decrement the reference count.
void release () const throw ()
 Decrement the reference count; destroy the instance if the count drops to zero.
size_t use_count () const throw ()
 The number of owning references to the instance.
const node_typetype () const throw ()
 The type information object for the node.
const std::string & id () const throw ()
 Retrieve the name of this node.
void id (const std::string &node_id) throw ( std::bad_alloc )
 Set the name of the node.
const openvrml::scopescope () const throw ()
 Get the scope to which the node belongs.
openvrml::scenescene () const throw ()
 Get the scene with which the node is associated.
const std::vector
< boost::intrusive_ptr< node > > & 
impl_nodes () const throw ()
 Get the implementation nodes of a PROTO instance.
std::ostream & print (std::ostream &out, size_t indent) const
 Pretty print.
void initialize (openvrml::scene &scene, double timestamp) throw ( std::bad_alloc )
 Initialize the node.
std::auto_ptr< field_valuefield (const std::string &id) const throw ( unsupported_interface , std::bad_alloc )
 Generalized field accessor.
openvrml::event_listenerevent_listener (const std::string &id) throw ( unsupported_interface )
 Get an event listener.
openvrml::event_emitterevent_emitter (const std::string &id) throw ( unsupported_interface )
 Get an event emitter.
void shutdown (double timestamp) throw ()
 Shut down the node.
bool modified () const throw ( boost::thread_resource_error )
 Determine whether the node has been modified.
void modified (bool value) throw ( boost::thread_resource_error )
 Set the modified flag.

Protected Member Functions

 grouping_node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw ()
 Construct.
- Protected Member Functions inherited from openvrml::child_node
 child_node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw ()
 Constructor.
- Protected Member Functions inherited from openvrml::bounded_volume_node
 bounded_volume_node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw ()
 Construct.
void bounding_volume_dirty (bool value)
 Set whether the node's bounding volume needs to be recalculated.
bool bounding_volume_dirty () const
 Whether the node's bounding volume needs to be recalculated.
virtual const
openvrml::bounding_volume
do_bounding_volume () const
 Called by bounding_volume.
- Protected Member Functions inherited from openvrml::node
 node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw ()
 Construct.
boost::shared_mutex & scene_mutex ()
 The scene mutex.

Private Member Functions

virtual grouping_nodeto_grouping () throw ()
 Cast to a grouping_node.
virtual const std::vector
< boost::intrusive_ptr< node > > 
do_children () const =0 throw ( std::bad_alloc )
 Get the children in the scene graph.

Additional Inherited Members

- Static Public Attributes inherited from openvrml::node
static const
boost::intrusive_ptr< node
self_tag
 Special value used when initializing a script_node.
- Static Protected Member Functions inherited from openvrml::node
static void emit_event (openvrml::event_emitter &emitter, double timestamp) throw ( std::bad_alloc )
 Emit an event.

Detailed Description

Abstract base class for grouping nodes.

Constructor & Destructor Documentation

openvrml::grouping_node::~grouping_node ( ) throw ()
pure virtual

Destroy.

openvrml::grouping_node::grouping_node ( const node_type type,
const boost::shared_ptr< openvrml::scope > &  scope 
) throw ()
protected

Construct.

Parameters
[in]typethe node_type associated with the node.
[in]scopethe scope the node belongs to.

Member Function Documentation

const std::vector< boost::intrusive_ptr< openvrml::node > > openvrml::grouping_node::children ( ) const throw ( std::bad_alloc )

Get the children in the scene graph.

This function delegates to do_children.

Returns
the children in the scene graph.
Exceptions
std::bad_allocif memory allocation fails.
void openvrml::grouping_node::activate_pointing_device_sensors ( double  timestamp,
bool  over,
bool  active,
const double(&)  p[3] 
)

Called in response to user interaction to activate any child pointing device sensor nodes.

Calls pointing_device_sendor_node::activate for child pointing_device_sensor_nodes, recursively.

Parameters
[in]timestampthe current time.
[in]overwhether the pointer is over sensitive geometry.
[in]activewhether the pointer has activated sensitive geometry.
[in]pthe activation point.
openvrml::grouping_node * openvrml::grouping_node::to_grouping ( ) throw ()
privatevirtual

Cast to a grouping_node.

Returns
a pointer to this grouping_node.
const std::vector< boost::intrusive_ptr< openvrml::node > > openvrml::grouping_node::do_children ( ) const throw ( std::bad_alloc )
privatepure virtual

Get the children in the scene graph.

Returns
the child nodes in the scene graph.
Exceptions
std::bad_allocif memory allocation fails.