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openvrml::vrml97_node::background_class Class Reference

Class object for Background nodes. More...

Inheritance diagram for openvrml::vrml97_node::background_class:

[legend]Collaboration diagram for openvrml::vrml97_node::background_class:

[legend]List of all members.

Public Member Functions
	background_class (openvrml::browser &browser)
	Construct.
virtual	~background_class () throw ()
	Destroy.
void	set_first (background_node &background) throw ()
	Set the first Background node in the world.
bool	has_first () const throw ()
	Check to see if the first node has been set.
void	bind (background_node &background, double timestamp) throw (std::bad_alloc)
	Push a background_node on the top of the bound node stack.
void	unbind (background_node &background, double timestamp) throw ()
	Remove a background_node from the bound node stack.
virtual void	initialize (viewpoint_node *initialViewpoint, double timestamp) throw ()
	node_class-specific initialization.
virtual void	render (openvrml::viewer &viewer) throw ()
	node_class-specific rendering.
virtual const node_type_ptr	create_type (const std::string &id, const node_interface_set &) throw (unsupported_interface, std::bad_alloc)
	Create a node_type.
Private Types
typedef std::vector< background_node * >	bound_nodes_t
	A bound Background node stack.
Private Attributes
background_node *	first
	The first Background node in the initial scene graph.
bound_nodes_t	bound_nodes
	The bound Background node stack.

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Detailed Description

Class object for Background nodes.

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Constructor & Destructor Documentation

openvrml::vrml97_node::background_class::background_class (  openvrml::browser &  browser  )  [explicit]

Construct. Parameters: browser  the browser associated with this class object.

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Member Function Documentation

void openvrml::vrml97_node::background_class::bind (  background_node &  background, double  timestamp )  throw (std::bad_alloc)

Push a background_node on the top of the bound node stack. Parameters: background  the node to bind. timestamp  the current time. Exceptions: std::bad_alloc  if memory allocation fails.

const node_type_ptr openvrml::vrml97_node::background_class::create_type (  const std::string &  id, const node_interface_set &  interfaces )  throw (unsupported_interface, std::bad_alloc) [virtual]

Create a node_type. Parameters: id  the name for the new node_type. interfaces  the interfaces for the new node_type. Returns: a node_type_ptr to a node_type capable of creating Background nodes. Exceptions: unsupported_interface  if interfaces includes an interface not supported by background_class. std::bad_alloc  if memory allocation fails. Implements openvrml::node_class.

bool openvrml::vrml97_node::background_class::has_first (   )  const throw ()

Check to see if the first node has been set. This method is used by background_node::do_initialize. Returns: true if the first node has already been set; false otherwise.

void openvrml::vrml97_node::background_class::initialize (  openvrml::viewpoint_node *  initialViewpoint, double  timestamp )  throw () [virtual]

node_class-specific initialization. Parameters: initialViewpoint  the viewpoint_node that should be bound initially. timestamp  the current time. Reimplemented from openvrml::node_class.

void openvrml::vrml97_node::background_class::render (  openvrml::viewer &  viewer  )  throw () [virtual]

node_class-specific rendering. Render the active Background node. Parameters: viewer  a Viewer. Reimplemented from openvrml::node_class.

void openvrml::vrml97_node::background_class::set_first (  background_node &  background  )  throw ()

Set the first Background node in the world. The first Background node in the world is used as the initial background. This method is used by Background::do_initialize. Parameters: background  a Background node.

void openvrml::vrml97_node::background_class::unbind (  background_node &  background, double  timestamp )  throw ()

Remove a background_node from the bound node stack. Parameters: background  the node to unbind. timestamp  the current time.