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MolFilePlugin.h

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/***************************************************************************
 *cr
 *cr            (C) Copyright 1995-2008 The Board of Trustees of the
 *cr                        University of Illinois
 *cr                         All Rights Reserved
 *cr
 ***************************************************************************/

/***************************************************************************
 * RCS INFORMATION:
 *
 *      $RCSfile: MolFilePlugin.h,v $
 *      $Author: johns $        $Locker:  $             $State: Exp $
 *      $Revision: 1.30 $      $Date: 2008/03/27 19:36:41 $
 *
 ***************************************************************************
 * DESCRIPTION:
 *   VMD interface to 'molfile' plugins.  Molfile plugins read coordinate
 *   files, structure files, volumetric data, and graphics data.  The data
 *   is loaded into a new or potentially preexisting molecule in VMD.
 ***************************************************************************/
#ifndef MOL_FILE_PLUGIN_H__
#define MOL_FILE_PLUGIN_H__

class Molecule;
class Timestep;
class AtomSel;
class Scene;

#include <stdlib.h>  // for NULL
#include "molfile_plugin.h"

class MolFilePlugin {
private:
  molfile_plugin_t *plugin;
  void *rv;                  
  void *wv;                  
  int numatoms;              
  char *_filename;           

  void close();              

public:
  MolFilePlugin(vmdplugin_t *p);
  virtual ~MolFilePlugin();

  // test whether the plugin supports various capabilities 
  const char *name() const        { return plugin->name; }
  const char *prettyname() const  { return plugin->prettyname; }
  const char *extension() const   { return plugin->filename_extension; }

  int can_read_structure() const  { return plugin->read_structure != NULL; }
  int can_read_bonds() const      { return plugin->read_bonds != NULL; }
  int can_read_timesteps() const  { return plugin->read_next_timestep != NULL;}
  int can_read_graphics() const   { return plugin->read_rawgraphics != NULL; }
  int can_read_volumetric() const { return plugin->read_volumetric_metadata != NULL; }
  int can_read_metadata() const   { return plugin->read_molecule_metadata != NULL; }
#if vmdplugin_ABIVERSION > 9
  // XXX new plugin ABI routines
  int can_read_qm() const         { return plugin->read_qm_metadata != NULL; }
  int can_read_qm_timestep()      { return plugin->read_timestep != NULL; }
  int can_read_angles()           { return plugin->read_angles != NULL; }
#endif


  int can_write_structure() const { return plugin->write_structure != NULL; }
  int can_write_bonds() const     { return plugin->write_bonds != NULL; }
  int can_write_timesteps() const { return plugin->write_timestep != NULL; }
#if vmdplugin_ABIVERSION > 9
  // XXX new plugin ABI routines
  int can_write_angles()           { return plugin->read_angles != NULL; }
  int can_write_volumetric() const { return plugin->write_volumetric_data != NULL; }
#endif

  int init_read(const char *file);        



  int natoms() const { return numatoms; } 

  void set_natoms(int);                   


 
  int read_structure(Molecule *m, int filebonds, int autobonds); 




  int read_optional_structure(Molecule *m, int filebonds);

  Timestep *next();   
  int skip();         

  int read_rawgraphics(Molecule *, Scene *);

  int read_volumetric(Molecule *, int nsets, const int *setids);

  int read_metadata(Molecule *);

#if vmdplugin_ABIVERSION > 9

  int read_qm_data(Molecule *);
#endif

  int init_write(const char *file, int natoms);

  int write_structure(Molecule *, const int *sel);
  int write_timestep(const Timestep *, const int *sel); 

#if vmdplugin_ABIVERSION > 9

  int write_volumetric(Molecule *, int set);
#endif

};

#endif

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