101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file callbackNode.h
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* @author drose
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* @date 2009-03-13
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*/
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#ifndef CALLBACKNODE_H
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#define CALLBACKNODE_H
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#include "pandabase.h"
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#include "pandaNode.h"
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#include "callbackObject.h"
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#include "pointerTo.h"
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/**
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* A special node that can issue arbitrary callbacks to user code, either
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* during the cull or draw traversals.
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*/
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class EXPCL_PANDA_PGRAPHNODES CallbackNode : public PandaNode {
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PUBLISHED:
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explicit CallbackNode(const std::string &name);
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INLINE void set_cull_callback(CallbackObject *object);
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INLINE void clear_cull_callback();
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INLINE CallbackObject *get_cull_callback() const;
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MAKE_PROPERTY(cull_callback, get_cull_callback, set_cull_callback);
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INLINE void set_draw_callback(CallbackObject *object);
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INLINE void clear_draw_callback();
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INLINE CallbackObject *get_draw_callback() const;
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MAKE_PROPERTY(draw_callback, get_draw_callback, set_draw_callback);
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public:
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CallbackNode(const CallbackNode ©);
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virtual PandaNode *make_copy() const;
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virtual bool safe_to_combine() const;
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virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
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virtual bool is_renderable() const;
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virtual void add_for_draw(CullTraverser *trav, CullTraverserData &data);
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virtual void output(std::ostream &out) const;
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private:
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class EXPCL_PANDA_PGRAPHNODES CData : public CycleData {
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public:
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INLINE CData();
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INLINE CData(const CData ©);
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virtual CycleData *make_copy() const;
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virtual void write_datagram(BamWriter *manager, Datagram &dg) const;
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virtual void fillin(DatagramIterator &scan, BamReader *manager);
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virtual TypeHandle get_parent_type() const {
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return CallbackNode::get_class_type();
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}
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PT(CallbackObject) _cull_callback;
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PT(CallbackObject) _draw_callback;
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};
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PipelineCycler<CData> _cycler;
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typedef CycleDataReader<CData> CDReader;
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typedef CycleDataWriter<CData> CDWriter;
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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protected:
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static TypedWritable *make_from_bam(const FactoryParams ¶ms);
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void fillin(DatagramIterator &scan, BamReader *manager);
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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PandaNode::init_type();
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register_type(_type_handle, "CallbackNode",
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PandaNode::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "callbackNode.I"
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#endif
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