Source

Coin / src / lists / SoPickedPointList.cpp

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#include <Inventor/lists/SoPickedPointList.h>
#include <Inventor/SoPickedPoint.h>

/*!
  \class SoPickedPointList SoPickedPointList.h Inventor/lists/SoPickedPointList.h
  \brief The SoPickedPointList class is a container for pointers to SoPickedPoint objects.
  \ingroup general

  This list class will delete the picked points when
  destructed/truncated, or when a picked point in the list is replaced
  by another picked point The caller is responsible for allocating the
  picked points passed to the list, but should not deallocate them since
  this will be handled by the list.

  \sa SbPList
*/

/*!
  \fn SoPickedPointList::SoPickedPointList(void)

  Default constructor.
*/

/*!
  \fn SoPickedPointList::SoPickedPointList(const int sizehint)

  This constructor initializes the internal allocated size for the
  list to \a sizehint. Note that the list will still initially contain
  zero items.

  \sa SbList::SbList(const int sizehint)
*/

/*!
  \fn SoPickedPoint * SoPickedPointList::operator[](const int idx) const

  Returns element at \a idx.

  Will automatically expand the size of the internal array if \a idx
  is outside the current bounds of the list. The values of any
  additional pointers are then set to \c NULL.
*/


/*!
  Copy constructor. Will copy picked points, not just pointers.

  \sa SbList::SbList(const SbList<Type> & l)
*/
SoPickedPointList::SoPickedPointList(const SoPickedPointList & l)
  : SbPList(l.getLength())
  
{
  for (int i = 0; i < l.getLength(); i++) {
    this->append(l[i]->copy());
  }
}

/*!
  Overridden to delete truncated items.
*/
void 
SoPickedPointList::truncate(const int start, const int fit) 
{
  int oldlen = this->getLength();
  
  for (int i = start; i < oldlen; i++) {
    delete (*this)[i];
  }
  SbPList::truncate(start, fit);
}

/*!
  Overridden to destruct the replaced item.
*/
void 
SoPickedPointList::set(const int idx, SoPickedPoint * pp)
{
  if (idx < this->getLength()) delete (*this)[idx];
  SbPList::operator[](idx) = (void*) pp;
}