PluginFunctionsBaseIterator.cc 6.36 KB
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/*===========================================================================*\
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*                                                                            *
*                              OpenFlipper                                   *
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 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openflipper.org                            *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenFlipper.                                         *
 *---------------------------------------------------------------------------*
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 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
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 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
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 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
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 *    this software without specific prior written permission.               *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
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*                                                                            *
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\*===========================================================================*/

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//=============================================================================
//
//  Plugin Functions
//
//=============================================================================

#include <OpenFlipper/common/Types.hh>

#include "PluginFunctions.hh"

namespace PluginFunctions {


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BaseObjectIterator::BaseObjectIterator( IteratorRestriction _restriction , DataType _dataType) :
    pos_(0),
    dataType_(_dataType),
    restriction_(_restriction)
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{
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  // Start at the root Node
  BaseObject* currentPos = objectRoot();

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  currentPos = currentPos->next();
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  while ( (currentPos != objectRoot()) ) {

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    // Return only selected objects if requested
    if (!restriction_.isEmpty ()) {
      bool found = false;
      foreach (QString rest, restriction_)
        if (currentPos->flags().contains(rest))
        {
          found = true;
          break;
        }

      if (!found)
      {
        currentPos = currentPos->next();
        continue;
      }
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    }

    // Return only the right dataType
    if ( _dataType != DATA_ALL )
      if ( ! (currentPos->dataType( dataType_ ) ) ) {
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        currentPos = currentPos->next();
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        continue;
      }

    // found a valid object
    pos_ = dynamic_cast<BaseObject* > (currentPos);
    break;
  }
}

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BaseObjectIterator::BaseObjectIterator(BaseObject* pos, IteratorRestriction _restriction , DataType _data) :
    pos_(pos),
    dataType_(_data),
    restriction_(_restriction)
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{
};


bool BaseObjectIterator::operator==( const BaseObjectIterator& _rhs) {
   return ( _rhs.pos_ == pos_ );
}

bool BaseObjectIterator::operator!=( const BaseObjectIterator& _rhs) {
   return ( _rhs.pos_ != pos_ );
}

BaseObjectIterator& BaseObjectIterator::operator=( const BaseObjectIterator& _rhs) {
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   pos_         = _rhs.pos_;
   dataType_    = _rhs.dataType_;
   restriction_ = _rhs.restriction_;
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   return *this;
}


BaseObjectIterator::pointer BaseObjectIterator::operator->(){
   return pos_;
}

BaseObjectIterator& BaseObjectIterator::operator++() {

  // Convert our pointer to the basic one
  BaseObject* currentPos = dynamic_cast< BaseObject* >(pos_);

  // Get the next objectData element in the tree
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  currentPos = currentPos->next();
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  while ( (currentPos != objectRoot() ) ) {

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    // Return only selected objects if requested
    if (!restriction_.isEmpty ()) {
      bool found = false;
      foreach (QString rest, restriction_)
        if (currentPos->flags().contains(rest))
        {
          found = true;
          break;
        }

      if (!found)
      {
        currentPos = currentPos->next();
        continue;
      }
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    }

    // Return only the right dataType
    if ( ! (currentPos->dataType( dataType_ ) ) ) {
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      currentPos = currentPos->next();
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      continue;
    }

    // found a valid object
    pos_ = dynamic_cast<BaseObject* > (currentPos);
    return *this;
  }

  // No valid object found
  pos_ = 0;
  return *this;
}

BaseObjectIterator& BaseObjectIterator::operator--() {
   std::cerr << "TODO :--" << std::endl;
   return *this;
}

/** This operator returns a pointer to the current object the iterator
 * points to.
 *
 * @return Pointer to the current ObjectData
 */
BaseObject* BaseObjectIterator::operator*() {
   return pos_;
}

/// Return Iterator to Object End
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BaseObjectIterator baseObjectsEnd() {
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   return BaseObjectIterator(0);
}


}