panda3d/panda/src/pgraph/loaderFileType.h

/**
 * 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 loaderFileType.h
 * @author drose
 * @date 2000-06-20
 */

#ifndef LOADERFILETYPE_H
#define LOADERFILETYPE_H

#include "pandabase.h"

#include "typedObject.h"
#include "filename.h"
#include "pandaNode.h"
#include "pointerTo.h"
#include "dSearchPath.h"

class LoaderOptions;
class BamCacheRecord;

/**
 * This is the base class for a family of scene-graph file types that the
 * Loader supports.  Each kind of loader that's available should define a
 * corresponding LoaderFileType object and register itself.
 */
class EXPCL_PANDA_PGRAPH LoaderFileType : public TypedObject {
protected:
  LoaderFileType();

public:
  virtual ~LoaderFileType();

PUBLISHED:
  virtual std::string get_name() const=0;
  virtual std::string get_extension() const=0;
  virtual std::string get_additional_extensions() const;
  virtual bool supports_compressed() const;

  virtual bool get_allow_disk_cache(const LoaderOptions &options) const;
  virtual bool get_allow_ram_cache(const LoaderOptions &options) const;

  virtual bool supports_load() const;
  virtual bool supports_save() const;

public:
  virtual PT(PandaNode) load_file(const Filename &path, const LoaderOptions &options,
                                  BamCacheRecord *record) const;
  virtual bool save_file(const Filename &path, const LoaderOptions &options,
                         PandaNode *node) const;

protected:
  int _no_cache_flags;

public:
  static TypeHandle get_class_type() {
    return _type_handle;
  }
  static void init_type() {
    TypedObject::init_type();
    register_type(_type_handle, "LoaderFileType",
                  TypedObject::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;
};

#endif