// Created on: 1995-08-09
// Created by: Arnaud BOUZY/Odile Olivier
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 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 _AIS_Axis_HeaderFile
#define _AIS_Axis_HeaderFile

#include "AIS_InteractiveObject.hxx"
#include "AIS_TypeOfAxis.hxx"
#include "gp_Dir.hxx"
#include "gp_Pnt.hxx"
#include "SelectMgr_Selection.hxx"

class Geom_Line;
class Geom_Axis1Placement;
class Geom_Axis2Placement;
class Prs3d_LineAspect;

//! Locates the x, y and z axes in an Interactive Object.
//! These are used to orient it correctly in presentations
//! from different viewpoints, or to construct a revolved
//! shape, for example, from one of the axes. Conversely,
//! an axis can be created to build a revolved shape and
//! then situated relative to one of the axes of the view.
class AIS_Axis : public AIS_InteractiveObject
{
  DEFINE_STANDARD_RTTIEXT(AIS_Axis, AIS_InteractiveObject)
public:
  //! Initializes the line aComponent
  Standard_EXPORT AIS_Axis(const occ::handle<Geom_Line>& aComponent);

  //! initializes the axis2 position
  //! aComponent. The coordinate system used is right-handed.
  Standard_EXPORT AIS_Axis(const occ::handle<Geom_Axis2Placement>& aComponent,
                           const AIS_TypeOfAxis                    anAxisType);

  //! Initializes the axis1 position anAxis.
  Standard_EXPORT AIS_Axis(const occ::handle<Geom_Axis1Placement>& anAxis);

  //! Initializes the ray as axis with start point and direction
  //! @param[in] theAxis Start point and direction of the ray
  //! @param[in] theLength Optional length of the ray (ray is infinite by default).
  Standard_EXPORT AIS_Axis(const gp_Ax1& theAxis, const double theLength = -1);

  //! Returns the axis entity aComponent and identifies it
  //! as a component of a shape.
  const occ::handle<Geom_Line>& Component() const { return myComponent; }

  //! Sets the coordinates of the lin aComponent.
  Standard_EXPORT void SetComponent(const occ::handle<Geom_Line>& aComponent);

  //! Returns the position of axis2 and positions it by
  //! identifying it as the x, y, or z axis and giving its
  //! direction in 3D space. The coordinate system used is right-handed.
  const occ::handle<Geom_Axis2Placement>& Axis2Placement() const { return myAx2; }

  //! Allows you to provide settings for aComponent:the
  //! position and direction of an axis in 3D space. The
  //! coordinate system used is right-handed.
  Standard_EXPORT void SetAxis2Placement(const occ::handle<Geom_Axis2Placement>& aComponent,
                                         const AIS_TypeOfAxis                    anAxisType);

  //! Constructs a new line to serve as the axis anAxis in 3D space.
  Standard_EXPORT void SetAxis1Placement(const occ::handle<Geom_Axis1Placement>& anAxis);

  //! Returns the type of axis.
  AIS_TypeOfAxis TypeOfAxis() const { return myTypeOfAxis; }

  //! Constructs the entity theTypeAxis to stock information
  //! concerning type of axis.
  void SetTypeOfAxis(const AIS_TypeOfAxis theTypeAxis) { myTypeOfAxis = theTypeAxis; }

  //! Returns a signature of 2 for axis datums. When you
  //! activate mode 2 by a signature, you pick AIS objects
  //! of type AIS_Axis.
  bool IsXYZAxis() const { return myIsXYZAxis; }

  //! Returns true if the interactive object accepts the display mode aMode.
  Standard_EXPORT bool AcceptDisplayMode(const int aMode) const override;

  int Signature() const override { return 2; }

  AIS_KindOfInteractive Type() const override { return AIS_KindOfInteractive_Datum; }

  Standard_EXPORT void SetColor(const Quantity_Color& aColor) override;

  Standard_EXPORT void SetWidth(const double aValue) override;

  //! Set required visualization parameters.
  Standard_EXPORT void SetDisplayAspect(const occ::handle<Prs3d_LineAspect>& theNewDatumAspect);

  Standard_EXPORT void UnsetColor() override;

  Standard_EXPORT void UnsetWidth() override;

private:
  Standard_EXPORT void Compute(const occ::handle<PrsMgr_PresentationManager>& thePrsMgr,
                               const occ::handle<Prs3d_Presentation>&         thePrs,
                               const int                                      theMode) override;

  Standard_EXPORT void ComputeSelection(const occ::handle<SelectMgr_Selection>& theSel,
                                        const int                               theMode) override;

  Standard_EXPORT void ComputeFields();

private:
  occ::handle<Geom_Line>           myComponent;
  occ::handle<Geom_Axis2Placement> myAx2;
  gp_Pnt                           myPfirst;
  gp_Pnt                           myPlast;
  AIS_TypeOfAxis                   myTypeOfAxis;
  bool                             myIsXYZAxis;
  gp_Dir                           myDir;
  double                           myVal;
  const char*                      myText;
  occ::handle<Prs3d_LineAspect>    myLineAspect;
};

#endif // _AIS_Axis_HeaderFile