occt/src/VrmlData/VrmlData_IndexedLineSet.hxx

// Created on: 2007-08-01
// Created by: Alexander GRIGORIEV
// Copyright (c) 2007-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef VrmlData_IndexedLineSet_HeaderFile
#define VrmlData_IndexedLineSet_HeaderFile

#include <VrmlData_Geometry.hxx>
#include <VrmlData_Coordinate.hxx>
#include <VrmlData_Color.hxx>
//#include <Quantity_Color.hxx>

/**
 * Data type to store a set of polygons.
 */

class VrmlData_IndexedLineSet : public VrmlData_Geometry
{
 public:
  // ---------- PUBLIC METHODS ----------


  /**
   * Empty constructor.
   */
  inline VrmlData_IndexedLineSet ()
    : myArrPolygons     (0L),
      myArrColorInd     (0L),
      myNbPolygons      (0),
      myNbColors        (0),
      myColorPerVertex  (Standard_True)
  {}

  /**
   * Constructor.
   */
  inline VrmlData_IndexedLineSet (const VrmlData_Scene&  theScene,
                                  const char             * theName,
                                  const Standard_Boolean isColorPerVertex
                                                        = Standard_True)
    : VrmlData_Geometry (theScene, theName),
      myArrPolygons     (0L),
      myArrColorInd     (0L),
      myNbPolygons      (0),
      myNbColors        (0),
      myColorPerVertex  (isColorPerVertex)      
  {}

  /**
   * Query the Coordinates.
   */
  inline const Handle(VrmlData_Coordinate)&
                Coordinates     () const        { return myCoords; }

  /**
   * Set the nodes
   */
  inline void   SetCoordinates  (const Handle(VrmlData_Coordinate)& theCoord)
  { myCoords = theCoord; }

  /**
   * Query the Colors.
   */
  inline const Handle(VrmlData_Color)&
                Colors          () const        { return myColors; }

  /**
   * Set the Color node
   */
  inline void   SetColors       (const Handle(VrmlData_Color)& theColors)
  { myColors = theColors; }

  // ========================================================================
  // =========================== POLYLINES  =================================
  /**
   * Query the array of polygons
   */
  inline size_t Polygons        (const Standard_Integer**& arrPolygons) const
  { arrPolygons = myArrPolygons; return myNbPolygons; }

  /**
   * Query one polygon.
   * @param iPolygon
   *   rank of the polygon [0 .. N-1]
   * @param outIndice
   *   <tt>[out]</tt> array of vertex indice
   * @return
   *   number of vertice in the polygon - the dimension of outIndice array
   */
  inline Standard_Integer
                Polygon         (const Standard_Integer         iPolygon,
                                 const Standard_Integer *&      outIndice)
  { return * (outIndice = myArrPolygons[iPolygon])++; }

  /**
   * Set the polygons
   */
  inline void   SetPolygons     (const Standard_Size       nPolygons,
                                 const Standard_Integer ** thePolygons)
  { myNbPolygons = nPolygons; myArrPolygons = thePolygons; }

  // ========================================================================
  // ================================ COLORS ================================
  /**
   * Query the array of color indice
   * @param arrColorInd
   *   <tt>[out]</tt> array of colorIndex as it is described in VRML2.0 spec
   * @return
   *   Number of integers in the array arrColorInd.
   */
  inline size_t ArrayColorInd   (const Standard_Integer**& arrColorInd) const
  { arrColorInd = myArrColorInd; return myNbColors; }

  /**
   * Query a color for one node in the given element. The color is
   * interpreted according to fields myColors, myArrColorInd,
   * myColorPerVertex, as defined in VRML 2.0.
   * @param iFace
   *   rank of the polygon [0 .. N-1]
   * @param iVertex
   *   rank of the vertex in the polygon [0 .. M-1]. This parameter is ignored
   *   if (myColorPerVertex == False)
   * @return
   *   Color value (RGB); if the color is indefinite then returns (0., 0., 0.)
   */
  Standard_EXPORT Quantity_Color
                GetColor        (const Standard_Integer         iFace,
                                 const Standard_Integer         iVertex);

  /**
   * Set the colors array of indice
   */
  inline void   SetColorInd     (const Standard_Size       nIndice,
                                 const Standard_Integer ** theIndice)
  { myNbColors = nIndice; myArrColorInd = theIndice; }

  /**
   * Set the boolean value "colorPerVertex"
   */
  inline void   SetColorPerVertex (const Standard_Boolean isColorPerVertex)
  { myColorPerVertex = isColorPerVertex; }

  /**
   * Query the shape. This method checks the flag myIsModified; if True it
   * should rebuild the shape presentation.
   */
  Standard_EXPORT virtual const Handle(TopoDS_TShape)&
                TShape          () Standard_OVERRIDE;

  /**
   * Create a copy of this node.
   * If the parameter is null, a new copied node is created. Otherwise new node
   * is not created, but rather the given one is modified.
   */
  Standard_EXPORT virtual Handle(VrmlData_Node)
                Clone           (const Handle(VrmlData_Node)& theOther)const Standard_OVERRIDE;

  /**
   * Read the Node from input stream.
   */
  Standard_EXPORT virtual VrmlData_ErrorStatus
                Read            (VrmlData_InBuffer& theBuffer) Standard_OVERRIDE;

  /**
   * Write the Node to output stream.
   */
  Standard_EXPORT virtual VrmlData_ErrorStatus
                Write           (const char * thePrefix) const Standard_OVERRIDE;

  /**
   * Returns True if the node is default, so that it should not be written.
   */
  Standard_EXPORT virtual Standard_Boolean
                IsDefault       () const Standard_OVERRIDE;


 private:
  // ---------- PRIVATE FIELDS ----------
  Handle(VrmlData_Coordinate)           myCoords;
  Handle(VrmlData_Color)                myColors;
  const Standard_Integer                ** myArrPolygons;
  const Standard_Integer                ** myArrColorInd;
  Standard_Size                         myNbPolygons;
  Standard_Size                         myNbColors;
  Standard_Boolean                      myColorPerVertex;

 public:
// Declaration of CASCADE RTTI
DEFINE_STANDARD_RTTIEXT(VrmlData_IndexedLineSet,VrmlData_Geometry)
};

// Definition of HANDLE object using Standard_DefineHandle.hxx
DEFINE_STANDARD_HANDLE (VrmlData_IndexedLineSet, VrmlData_Geometry)


#endif