showInterval.cxx

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/**
 * 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 showInterval.cxx
 * @author drose
 * @date 2002-08-27
 */

#include "showInterval.h"

int ShowInterval::_unique_index;
TypeHandle ShowInterval::_type_handle;

/**
 *
 */
ShowInterval::
ShowInterval(const NodePath &node, const std::string &name) :
  CInterval(name, 0.0, true),
  _node(node)
{
  nassertv(!node.is_empty());
  if (_name.empty()) {
    std::ostringstream name_strm;
    name_strm
      << "ShowInterval-" << node.node()->get_name() << "-" << ++_unique_index;
    _name = name_strm.str();
  }
}

/**
 * This is called in lieu of priv_initialize() .. priv_step() ..
 * priv_finalize(), when everything is to happen within one frame.  The
 * interval should initialize itself, then leave itself in the final state.
 */
void ShowInterval::
priv_instant() {
  check_stopped(get_class_type(), "priv_instant");
  _node.show();
  _state = S_final;
}

/**
 * This is called in lieu of priv_reverse_initialize() .. priv_step() ..
 * priv_reverse_finalize(), when everything is to happen within one frame.
 * The interval should initialize itself, then leave itself in the initial
 * state.
 */
void ShowInterval::
priv_reverse_instant() {
  check_stopped(get_class_type(), "priv_reverse_instant");
  _node.hide();
  _state = S_initial;
}