15 #ifndef CALLBACKNODE_H
16 #define CALLBACKNODE_H
18 #include "pandabase.h"
19 #include "pandaNode.h"
20 #include "callbackObject.h"
21 #include "pointerTo.h"
33 INLINE
void clear_cull_callback();
37 INLINE
void clear_draw_callback();
50 virtual void output(ostream &out)
const;
53 class EXPCL_PANDA_PGRAPHNODES CData :
public CycleData {
56 INLINE CData(
const CData ©);
61 return CallbackNode::get_class_type();
73 static void register_with_read_factory();
84 static void init_type() {
85 PandaNode::init_type();
86 register_type(_type_handle,
"CallbackNode",
87 PandaNode::get_class_type());
90 return get_class_type();
92 virtual TypeHandle force_init_type() {init_type();
return get_class_type();}
98 #include "callbackNode.I"
A basic node of the scene graph or data graph.
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
A single page of data maintained by a PipelineCycler.
Base class for objects that can be written to and read from Bam files.
This collects together the pieces of data that are accumulated for each node while walking the scene ...
virtual PandaNode * make_copy() const
Returns a newly-allocated PandaNode that is a shallow copy of this one.
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
A special node that can issue arbitrary callbacks to user code, either during the cull or draw traver...
This template class calls PipelineCycler::read_unlocked(), and then provides a transparent read-only ...
virtual bool safe_to_combine() const
Returns true if it is generally safe to combine this particular kind of PandaNode with other kinds of...
An instance of this class is passed to the Factory when requesting it to do its business and construc...
virtual void add_for_draw(CullTraverser *trav, CullTraverserData &data)
Adds the node's contents to the CullResult we are building up during the cull traversal, so that it will be drawn at render time.
virtual bool is_renderable() const
Returns true if there is some value to visiting this particular node during the cull traversal for an...
This template class calls PipelineCycler::write() in the constructor and PipelineCycler::release_writ...
This is a generic object that can be assigned to a callback at various points in the rendering proces...
virtual void fillin(DatagramIterator &scan, BamReader *manager)
This internal function is intended to be called by each class's make_from_bam() method to read in all...
A class to retrieve the individual data elements previously stored in a Datagram. ...
virtual void write_datagram(BamWriter *, Datagram &) const
Writes the contents of this object to the datagram for shipping out to a Bam file.
TypeHandle is the identifier used to differentiate C++ class types.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
This object performs a depth-first traversal of the scene graph, with optional view-frustum culling...
virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data)
This function will be called during the cull traversal to perform any additional operations that shou...