ActorTree.cpp

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/*  Visualization Library                                                             */
/*  http://visualizationlibrary.org                                                   */
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#include <vlGraphics/ActorTree.hpp>
#include <vlCore/Log.hpp>

using namespace vl;

//-----------------------------------------------------------------------------
void ActorTree::eraseAllChildren()
{
  for( size_t 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::addChildOnce(ActorTreeAbstract* node)
{
  if ( findChild( node ) == -1 ) {
    addChild( node );
  }
}
//-----------------------------------------------------------------------------
int ActorTree::findChild(ActorTreeAbstract* node)
{
  std::vector< ref<ActorTreeAbstract> >::iterator it = std::find( mChildren.begin(), mChildren.end(), node );
  if ( it != mChildren.end() ) {
    return (int)( it - mChildren.begin() );
  } else {
    return -1;
  }
}
//-----------------------------------------------------------------------------
bool ActorTree::eraseChild(ActorTreeAbstract* node)
{
  int pos = findChild( node );
  if ( pos != -1 ) {
    eraseChild( pos );
    return true;
  } else {
    return false;
  }
}
//-----------------------------------------------------------------------------
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;
  node->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 );
}
//-----------------------------------------------------------------------------