BSplineCurveObject.cc

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//=============================================================================
//
// BSplineCurve object type - Implementation
// Author:  Ellen Dekkers <dekkers@cs.rwth-aachen.de>
//
//=============================================================================
 
#define BSPLINECURVEOBJECT_C
 
//== INCLUDES =================================================================
 
#include <OpenFlipper/common/Types.hh>
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
#include "BSplineCurve.hh"
 
//== DEFINES ==================================================================
 
//== TYPEDEFS =================================================================
 
//== CLASS DEFINITION =========================================================
 
BSplineCurveObject::BSplineCurveObject() :
  BaseObjectData(),
  splineCurve_(NULL),
  splineCurveNode_(NULL)
{
  setDataType(DATA_BSPLINE_CURVE);
  init();
}
 
//-----------------------------------------------------------------------------
 
BSplineCurveObject::BSplineCurveObject(const BSplineCurveObject & _object) :
BaseObjectData(_object)
{
  init(_object.splineCurve_);
  setName( name() );
}
 
//-----------------------------------------------------------------------------
 
BSplineCurveObject::~BSplineCurveObject()
{
  // 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 curve below and
  // they do something with the splineCurve in the destructor of their
  // perObjectData.
  deleteData();
 
  // Delete the Mesh only, if this object contains a mesh
  if ( splineCurve_ != NULL)  {
    delete splineCurve_;
    splineCurve_ = NULL;
  } else {
    std::cerr << "Destructor error : Spline curve already deleted" << std::endl;
  }
 
  // No need to delete the scenegraph Nodes as this will be managed by baseplugin
  splineCurveNode_    = NULL;
}
 
//-----------------------------------------------------------------------------
 
void BSplineCurveObject::cleanup()
{
  // Delete the spline only, if this object contains a spline
  if ( splineCurve_ != NULL)  {
    delete splineCurve_;
    splineCurve_ = NULL;
  } else {
    std::cerr << "Cleanup error : Spline already deleted" << std::endl;
  }
 
  BaseObjectData::cleanup();
 
  splineCurveNode_   = NULL;
 
  setDataType(DATA_BSPLINE_CURVE);
 
  init();
 
}
 
//-----------------------------------------------------------------------------
 
BaseObject* BSplineCurveObject::copy()
{
  BSplineCurveObject* object = new BSplineCurveObject(*this);
  return dynamic_cast< BaseObject* >(object);
}
 
//-----------------------------------------------------------------------------
 
void BSplineCurveObject::init(BSplineCurve* _curve) {
 
  if (_curve == 0)
    splineCurve_ = new BSplineCurve();
  else
    splineCurve_ = new BSplineCurve(*_curve);
 
  // request selection properties for control polygon
  splineCurve()->request_controlpoint_selections();
  splineCurve()->request_edge_selections();
  // request selection property for knotvector
  splineCurve()->get_knotvector_ref()->request_selections();
 
  if ( materialNode() == NULL)
    std::cerr << "Error when creating BSplineCurve Object! materialNode is NULL!" << std::endl;
 
  splineCurveNode_ = new ACG::SceneGraph::BSplineCurveNodeT< BSplineCurve >(*splineCurve_, materialNode() , "NEW BSplineCurveNode");
 
  materialNode()->set_color(ACG::Vec4f(178.0f/255.0f, 34.0f/255.0f, 34.0f/255.0f, 1.0f));
}
 
// ===============================================================================
// Name/Path Handling
// ===============================================================================
 
void BSplineCurveObject::setName( QString _name ) {
  BaseObjectData::setName(_name);
 
  std::string nodename = std::string("BSplineCurveNode for BSpline curves " + _name.toUtf8() );
  splineCurveNode_->name( nodename );
}
 
// ===============================================================================
// Content
// ===============================================================================
 
BSplineCurve* BSplineCurveObject::splineCurve() {
  return splineCurve_;
}
 
//-----------------------------------------------------------------------------
 
void 
BSplineCurveObject::
update(UpdateType _type)
{
  if ( _type.contains(UPDATE_ALL))
  {
    splineCurveNode()->updateGeometry();
    
    // mark textures as invalid
    splineCurveNode()->cpSelectionTextureValid(false);
    splineCurveNode()->knotSelectionTextureValid(false);
  }
  else 
  {
    if (_type.contains(UPDATE_GEOMETRY) || _type.contains(UPDATE_SELECTION)) 
    {
      splineCurveNode()->updateGeometry();
      
      // mark textures as invalid
      splineCurveNode()->cpSelectionTextureValid(false);
      splineCurveNode()->knotSelectionTextureValid(false);
    }
    else if (_type.contains(UPDATE_SELECTION_VERTICES))
    {
      splineCurveNode()->updateGeometry();
      splineCurveNode()->cpSelectionTextureValid(false);
    }
    else if (_type.contains(UPDATE_SELECTION_KNOTS))
    {
      splineCurveNode()->updateGeometry();
      splineCurveNode()->knotSelectionTextureValid(false);
    }
  }
}
 
 
// ===============================================================================
// Visualization
// ===============================================================================
 
ACG::SceneGraph::BSplineCurveNodeT< BSplineCurve >* BSplineCurveObject::splineCurveNode() {
  return splineCurveNode_;
}
 
// ===============================================================================
// Object information
// ===============================================================================
 
QString BSplineCurveObject::getObjectinfo() {
  QString output;
 
  output += "========================================================================\n";
  output += BaseObjectData::getObjectinfo();
 
  if ( dataType( DATA_BSPLINE_CURVE ) )
    output += "Object Contains BSpline Curve : ";
  else{
    output += "Error: Object Contains NO BSpline Curve!";
    output += "========================================================================\n";
    return output;
  }
 
  output += QString::number( splineCurve()->n_control_points() ) + " control points, ";
  output += QString::number( splineCurve()->n_knots() ) += " knots.\n";
 
  output += "========================================================================\n";
  return output;
}
 
// ===============================================================================
// Picking
// ===============================================================================
 
bool BSplineCurveObject::picked( uint _node_idx ) {
  return ( _node_idx == splineCurveNode_->id() );
}
 
//-----------------------------------------------------------------------------
 
void BSplineCurveObject::enablePicking( bool _enable ) {
  splineCurveNode_->enablePicking( _enable );
}
 
//-----------------------------------------------------------------------------
 
bool BSplineCurveObject::pickingEnabled() {
  return splineCurveNode_->pickingEnabled();
}
 
//=============================================================================