PolyLineCollectionObject.cc 11 KB
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/*===========================================================================*\
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/*===========================================================================*\
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*   $Revision$                                                       *
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\*===========================================================================*/

//=============================================================================
//
//  MyTypes
//
//=============================================================================

#define POLYLINECOLLECTIONOBJECT_C

//== INCLUDES =================================================================

#include <OpenFlipper/common/Types.hh>
#include "PolyLineCollection.hh"
#include "PolyLineCollectionObject.hh"

//== DEFINES ==================================================================

//== TYPEDEFS =================================================================

//== CLASS DEFINITION =========================================================

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/** Constructor for PolyLine Collection Objects. This object class gets a Separator Node giving
*  the root node to which it should be connected. The collection is generated internally
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*  and all nodes for visualization will be added below the scenegraph node.\n
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*  You don't need to create an object of this type manually. Use
*  PluginFunctions::addPolyLineCollection instead. ( see Types.hh::DataType )
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*/
PolyLineCollectionObject::PolyLineCollectionObject() :
  BaseObjectData( ),
  collection_(NULL),
  collectionNode_(NULL)
{
  setDataType(DATA_POLY_LINE_COLLECTION);
  init();
}

//=============================================================================


/**
 * Copy Constructor - generates a copy of the given object
 */
PolyLineCollectionObject::PolyLineCollectionObject(const PolyLineCollectionObject & _object) :
  BaseObjectData(_object)
{
    init(_object.collection_);

    setName( name() );
}

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/** Destructor for PolyLineCollection Objects. The destructor deletes the Collection and all
*  Scenegraph nodes associated with the Collection or the object.
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*/
PolyLineCollectionObject::~PolyLineCollectionObject()
{
  // Delete the data attached to this object ( this will remove all perObject data)
  // Not the best way to do it but it will work.
  // This is only necessary if people use references to the line below and
  // they do something with the polyline in the destructor of their
  // perObjectData.
  deleteData();

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  // Delete the collection only, if this object contains a collection
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  if ( collection_ != NULL)  {
    delete collection_;
    collection_ = NULL;
  } else {
    std::cerr << "Destructor error : Line Collection already deleted" << std::endl;
  }

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  // No need to delete the scenegraph Nodes as this will be managed by BasePlugin
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  collectionNode_    = NULL;
}

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/** Cleanup Function for Collection Objects. Deletes the contents of the whole object and
* calls PolyLineCollection::init afterwards.
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*/
void PolyLineCollectionObject::cleanup() {
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  // Delete the Collection only, if this object contains a Collection
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  if ( collection_ != NULL)  {
    delete collection_;
    collection_ = NULL;
  } else {
    std::cerr << "Cleanup error : Line already deleted" << std::endl;
  }

  BaseObjectData::cleanup();

  collectionNode_   = NULL;

  setDataType(DATA_POLY_LINE_COLLECTION);

  init();

}

/**
 * Generate a copy
 */
BaseObject* PolyLineCollectionObject::copy() {
    PolyLineCollectionObject* object = new PolyLineCollectionObject(*this);
    return dynamic_cast< BaseObject* >(object);
}

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/** This function initializes the Collection object. It creates the scenegraph nodes,
*  the Collection.
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*/
void PolyLineCollectionObject::init(PolyLineCollection* _collection) {

  if (_collection == 0)
    collection_ = new PolyLineCollection();
  else
    collection_ = new PolyLineCollection(*_collection);

  // request default properties (managed by the polyline collection)

  if ( materialNode() == NULL)
    std::cerr << "Error when creating Line Object! materialNode is NULL!" << std::endl;

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  collectionNode_    = new ACG::SceneGraph::PolyLineCollectionNodeT< PolyLineCollection >(*collection_, materialNode() , "NEW PolyLineCollection");
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  // Set default material of the polyLine
  materialNode()->set_random_color();
  materialNode()->set_line_width(3.0);
  materialNode()->set_point_size(8.0);
  materialNode()->set_round_points(true);

}

// ===============================================================================
// Name/Path Handling
// ===============================================================================

/** Set the name of an object. All Scenegraph nodes are renamed too. It also calls
* BaseObjectData::setName.
*/
void PolyLineCollectionObject::setName( QString _name ) {
  BaseObjectData::setName(_name);

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  std::string nodename = std::string("PolyLineCollectionNode for PolyLineCollection "     + _name.toUtf8() );
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  collectionNode_->name( nodename );
}

// ===============================================================================
// Content
// ===============================================================================

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/** Get a pointer to the objects Collection.
* @return Pointer to the Collection
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*/
PolyLineCollection* PolyLineCollectionObject::collection() {
  return collection_;
}


void PolyLineCollectionObject::update(UpdateType _type) {
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  if(_type == UPDATE_COLOR || _type == UPDATE_ALL){
      collectionNode_->resetVBO();
  }

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  collectionNode_->update();
}

// ===============================================================================
// Visualization
// ===============================================================================

ACG::SceneGraph::PolyLineCollectionNodeT< PolyLineCollection >* PolyLineCollectionObject::collectionNode() {
  return collectionNode_;
}

// ===============================================================================
// Object information
// ===============================================================================

/** Returns a string containing all information about the current object. This also
* includes the information provided by BaseObjectData::getObjectinfo
*
* @return String containing the object information
*/
QString PolyLineCollectionObject::getObjectinfo() {
  QString output;

  output += "========================================================================\n";
  output += BaseObjectData::getObjectinfo();

  if ( dataType( DATA_POLY_LINE_COLLECTION ) )
    output += "Object Contains PolyLineCollection : ";

  output += QString::number( collection()->n_polylines() ) + " polylines, ";

  output += "========================================================================\n";
  return output;
}

// ===============================================================================
// Picking
// ===============================================================================

/** Given an node index from PluginFunctions::scenegraphPick this function can be used to
* check if the polyLineNode of the object has been picked.
*
* @param _node_idx Index of the picked line node
* @return bool if the lineNode of this object is the picking target.
*/
bool PolyLineCollectionObject::picked( uint _node_idx ) {
  return ( _node_idx == collectionNode_->id() );
}

void PolyLineCollectionObject::enablePicking( bool _enable ) {
  collectionNode_->enablePicking( _enable );
}

bool PolyLineCollectionObject::pickingEnabled() {
  return collectionNode_->pickingEnabled();
}

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/// Refine picking on poly line collections (!TODO)
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ACG::Vec3d PolyLineCollectionObject::refinePick(ACG::SceneGraph::PickTarget _pickTarget,
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                                                const ACG::Vec3d _hitPoint,
                                                const ACG::Vec3d _start ,
                                                const ACG::Vec3d _dir,
                                                const size_t _targetIdx )
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{
  return _hitPoint;
}

//=============================================================================