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switchNode.h
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93 lines (75 loc) · 2.45 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file switchNode.h
* @author drose
* @date 2002-07-31
*/
#ifndef SWITCHNODE_H
#define SWITCHNODE_H
#include "pandabase.h"
#include "selectiveChildNode.h"
/**
* A node that renders only one of its children, according to the user's
* indication.
*/
class EXPCL_PANDA_PGRAPHNODES SwitchNode : public SelectiveChildNode {
PUBLISHED:
INLINE explicit SwitchNode(const std::string &name);
public:
SwitchNode(const SwitchNode ©);
virtual PandaNode *make_copy() const;
virtual bool safe_to_combine() const;
virtual bool safe_to_combine_children() const;
virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
virtual int get_first_visible_child() const;
virtual bool has_single_child_visibility() const;
PUBLISHED:
INLINE void set_visible_child(int index);
virtual int get_visible_child() const;
MAKE_PROPERTY(visible_child, get_visible_child, set_visible_child);
private:
class EXPCL_PANDA_PGRAPHNODES CData : public CycleData {
public:
INLINE CData();
INLINE CData(const CData ©);
virtual CycleData *make_copy() const;
virtual void write_datagram(BamWriter *manager, Datagram &dg) const;
virtual void fillin(DatagramIterator &scan, BamReader *manager);
virtual TypeHandle get_parent_type() const {
return SwitchNode::get_class_type();
}
int _visible_child;
};
PipelineCycler<CData> _cycler;
typedef CycleDataReader<CData> CDReader;
typedef CycleDataWriter<CData> CDWriter;
public:
static void register_with_read_factory();
virtual void write_datagram(BamWriter *manager, Datagram &dg);
protected:
static TypedWritable *make_from_bam(const FactoryParams ¶ms);
void fillin(DatagramIterator &scan, BamReader *manager);
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
SelectiveChildNode::init_type();
register_type(_type_handle, "SwitchNode",
SelectiveChildNode::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
};
#include "switchNode.I"
#endif