Panda3D
pgCullTraverser.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file pgCullTraverser.h
10  * @author drose
11  * @date 2002-03-14
12  */
13 
14 #ifndef PGCULLTRAVERSER_H
15 #define PGCULLTRAVERSER_H
16 
17 #include "pandabase.h"
18 
19 #include "pgTop.h"
20 #include "cullTraverser.h"
21 
22 /**
23  * This is a specialization of CullTraverser for use within the pgui system.
24  * It is substituted in for the normal CullTraverser by the PGTop node. Its
25  * purpose is to carry additional data through the traversal so that PGItems
26  * can know how to register their regions with the current MouseWatcherGroup.
27  */
28 class EXPCL_PANDA_PGUI PGCullTraverser : public CullTraverser {
29 public:
30  INLINE PGCullTraverser(PGTop *top, CullTraverser *trav);
31 
32  PGTop *_top;
33  int _sort_index;
34 
35 public:
36  static TypeHandle get_class_type() {
37  return _type_handle;
38  }
39  static void init_type() {
40  CullTraverser::init_type();
41  register_type(_type_handle, "PGCullTraverser",
42  CullTraverser::get_class_type());
43  }
44  virtual TypeHandle get_type() const {
45  return get_class_type();
46  }
47  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
48 
49 private:
50  static TypeHandle _type_handle;
51 };
52 
53 #include "pgCullTraverser.I"
54 
55 #endif
cullTraverser.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandabase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22
CullTraverser
This object performs a depth-first traversal of the scene graph, with optional view-frustum culling,...
Definition: cullTraverser.h:45
pgCullTraverser.I
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
PGTop
The "top" node of the new Panda GUI system.
Definition: pgTop.h:38
PGCullTraverser
This is a specialization of CullTraverser for use within the pgui system.
Definition: pgCullTraverser.h:28
pgTop.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.