68 lines
1.8 KiB
C
68 lines
1.8 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 geomContext.h
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* @author drose
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* @date 2004-03-19
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*/
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#ifndef GEOMCONTEXT_H
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#define GEOMCONTEXT_H
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#include "pandabase.h"
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#include "savedContext.h"
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#include "geom.h"
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/**
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* This is a special class object that holds all the information returned by a
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* particular GSG to indicate the geom's internal context identifier.
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*
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* Geoms typically have an immediate-mode and a retained-mode operation. When
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* using geoms in retained-mode (in response to Geom::prepare()), the GSG will
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* create some internal handle for the geom and store it here. The geom
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* stores all of these handles internally.
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*
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* In the case of OpenGL, for example, a GeomContext corresponds to a display
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* list identifier.
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*/
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class EXPCL_PANDA_GOBJ GeomContext : public SavedContext {
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public:
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INLINE GeomContext(Geom *geom);
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PUBLISHED:
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INLINE Geom *get_geom() const;
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MAKE_PROPERTY(geom, get_geom);
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public:
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// This cannot be a PT(Geom), because the geom and the GSG both own their
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// GeomContexts! That would create a circular reference count.
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Geom *_geom;
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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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SavedContext::init_type();
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register_type(_type_handle, "GeomContext",
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SavedContext::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 "geomContext.I"
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#endif
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