// Filename: userVertexSlider.cxx
// Created by:  drose (28Mar05)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc.  All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license.  You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
//
// To contact the maintainers of this program write to
// panda3d-general@lists.sourceforge.net .
//
////////////////////////////////////////////////////////////////////

#include "userVertexSlider.h"
#include "bamReader.h"
#include "bamWriter.h"

TypeHandle UserVertexSlider::_type_handle;

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::Constructor
//       Access: Published
//  Description: 
////////////////////////////////////////////////////////////////////
UserVertexSlider::
UserVertexSlider(const string &name) :
  VertexSlider(InternalName::make(name))
{
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::Constructor
//       Access: Published
//  Description: 
////////////////////////////////////////////////////////////////////
UserVertexSlider::
UserVertexSlider(const InternalName *name) :
  VertexSlider(name)
{
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::get_slider
//       Access: Published, Virtual
//  Description: Returns the current slider value.
////////////////////////////////////////////////////////////////////
float UserVertexSlider::
get_slider() const {
  CDReader cdata(_cycler);
  return cdata->_slider;
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::CData::make_copy
//       Access: Public, Virtual
//  Description:
////////////////////////////////////////////////////////////////////
CycleData *UserVertexSlider::CData::
make_copy() const {
  return new CData(*this);
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::register_with_read_factory
//       Access: Public, Static
//  Description: Tells the BamReader how to create objects of type
//               UserVertexSlider.
////////////////////////////////////////////////////////////////////
void UserVertexSlider::
register_with_read_factory() {
  BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::write_datagram
//       Access: Public, Virtual
//  Description: Writes the contents of this object to the datagram
//               for shipping out to a Bam file.
////////////////////////////////////////////////////////////////////
void UserVertexSlider::
write_datagram(BamWriter *manager, Datagram &dg) {
  VertexSlider::write_datagram(manager, dg);

  manager->write_cdata(dg, _cycler);
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::make_from_bam
//       Access: Protected, Static
//  Description: This function is called by the BamReader's factory
//               when a new object of type UserVertexSlider is encountered
//               in the Bam file.  It should create the UserVertexSlider
//               and extract its information from the file.
////////////////////////////////////////////////////////////////////
TypedWritable *UserVertexSlider::
make_from_bam(const FactoryParams &params) {
  UserVertexSlider *object = new UserVertexSlider("");
  DatagramIterator scan;
  BamReader *manager;

  parse_params(params, scan, manager);
  object->fillin(scan, manager);

  return object;
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::fillin
//       Access: Protected
//  Description: This internal function is called by make_from_bam to
//               read in all of the relevant data from the BamFile for
//               the new UserVertexSlider.
////////////////////////////////////////////////////////////////////
void UserVertexSlider::
fillin(DatagramIterator &scan, BamReader *manager) {
  VertexSlider::fillin(scan, manager);

  manager->read_cdata(scan, _cycler);
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::CData::write_datagram
//       Access: Public, Virtual
//  Description: Writes the contents of this object to the datagram
//               for shipping out to a Bam file.
////////////////////////////////////////////////////////////////////
void UserVertexSlider::CData::
write_datagram(BamWriter *manager, Datagram &dg) const {
  dg.add_float32(_slider);
}

////////////////////////////////////////////////////////////////////
//     Function: UserVertexSlider::CData::fillin
//       Access: Public, Virtual
//  Description: This internal function is called by make_from_bam to
//               read in all of the relevant data from the BamFile for
//               the new UserVertexSlider.
////////////////////////////////////////////////////////////////////
void UserVertexSlider::CData::
fillin(DatagramIterator &scan, BamReader *manager) {
  _slider = scan.get_float32();
}
