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Abstract base class for child nodes. More...
#include <openvrml/node.h>
Public Member Functions | |
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. | |
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virtual | ~bounded_volume_node () throw () |
Destroy. | |
const openvrml::bounding_volume & | bounding_volume () const |
Get this node's bounding volume. | |
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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_type & | type () 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::scope & | scope () const throw () |
Get the scope to which the node belongs. | |
openvrml::scene * | scene () 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_value > | field (const std::string &id) const throw ( unsupported_interface , std::bad_alloc ) |
Generalized field accessor. | |
openvrml::event_listener & | event_listener (const std::string &id) throw ( unsupported_interface ) |
Get an event listener. | |
openvrml::event_emitter & | event_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 | |
child_node (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope) throw () | |
Constructor. | |
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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 . | |
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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 child_node * | to_child () throw () |
Cast to a child_node . | |
virtual void | do_relocate () throw ( std::bad_alloc ) |
child_node subclass-specific relocation update. | |
virtual void | do_render_child (viewer &v, rendering_context context) |
render_child implementation. |
Additional Inherited Members | |
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static const boost::intrusive_ptr< node > | self_tag |
Special value used when initializing a script_node . | |
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static void | emit_event (openvrml::event_emitter &emitter, double timestamp) throw ( std::bad_alloc ) |
Emit an event. | |
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To * | node_cast (node *n) |
Downcast a node to one of the abstract node types. | |
void | intrusive_ptr_add_ref (const node *n) |
Increment the reference count. | |
void | intrusive_ptr_release (const node *n) |
Decrement the reference count. | |
bool | is_proto_instance (const node &n) |
Check whether a node is a PROTO instance. |
Abstract base class for child nodes.
|
pure virtual |
Destructor.
|
protected |
Constructor.
[in] | type | the node_type associated with the node. |
[in] | scope | the scope the node belongs to. |
void openvrml::child_node::relocate | ( | ) | throw ( std::bad_alloc ) |
Called when the node is relocated to a new position in the scene graph.
This function delegates to the virtual function do_relocate
. relocate
should be called by eventIn handlers that receive nodes.
std::bad_alloc | if memory allocation fails. |
void openvrml::child_node::render_child | ( | viewer & | v, |
rendering_context | context | ||
) |
Render the node.
This function delegates to do_render_child
.
[in,out] | v | viewer implementation responsible for actually doing the drawing. |
[in] | context | generic context argument; holds things like the accumulated modelview transform. |
|
privatevirtual |
Cast to a child_node
.
child_node
.
|
privatevirtual |
child_node
subclass-specific relocation update.
This method is called by relocate
. Subclasses of child_node
should override this function for any subclass-specific updates that need to be performed following relocation of a child_node
to a new position in the scene graph (for example, updating a node_path
).
The default implementation of this method does nothing.
|
privatevirtual |
render_child
implementation.
Rendered child_nodes
should override this method.
[in,out] | v | viewer implementation responsible for actually doing the drawing. |
[in] | context | generic context argument; holds things like the accumulated modelview transform. |