/home/master/UCL/VisualizationLibrary/src/vlGraphics/ActorTree.cpp

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/*  Visualization Library                                                             */
/*  http://visualizationlibrary.org                                                   */
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/*  Copyright (c) 2005-2010, Michele Bosi                                             */
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#include <vlGraphics/ActorTree.hpp>
#include <vlCore/Log.hpp>

using namespace vl;

//-----------------------------------------------------------------------------
void ActorTree::eraseAllChildren()
{
  for(unsigned i=0;i<mChildren.size(); ++i)
    mChildren[i]->setParent(NULL);
  mChildren.clear();
}
//-----------------------------------------------------------------------------
void ActorTree::addChild(ActorTreeAbstract* node)
{ 
  if (node->parent())
  {
    vl::Log::error("ActorTreeAbstract::addChild(node): 'node' already has a parent.\n");
    return;
  }
  node->setParent(this);
  mChildren.push_back(node);
}
//-----------------------------------------------------------------------------
void ActorTree::setChild(int i, ActorTreeAbstract* node) 
{ 
  if (node->parent())
  {
    vl::Log::error("ActorTreeAbstract::setChild(int,node): 'node' already has a parent.\n");
    return;
  }
  mChildren[i]->setParent(NULL);
  mChildren[i] = node;
  mChildren[i]->setParent(this);
}
//-----------------------------------------------------------------------------
void ActorTree::eraseChild(int i, int count)
{
  for(int j=i; j<i+count; ++j)
    mChildren[j]->setParent(NULL);
  mChildren.erase(mChildren.begin()+i,mChildren.begin()+i+count);
}
//-----------------------------------------------------------------------------