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 // Created on: 2017-07-25
 // Created by: Anastasia BOBYLEVA
 // Copyright (c) 2017-2019 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_ViewCube_HeaderFile
 #define _AIS_ViewCube_HeaderFile
 
 #include <AIS_InteractiveObject.hxx>
 #include <Graphic3d_Camera.hxx>
 #include <Graphic3d_Vec2.hxx>
 #include <Prs3d_DatumParts.hxx>
 #include <Prs3d_ShadingAspect.hxx>
 #include <Prs3d_TextAspect.hxx>
 #include <SelectMgr_EntityOwner.hxx>
 #include <V3d_TypeOfOrientation.hxx>
 #include <Select3D_SensitivePrimitiveArray.hxx>
 
 class AIS_AnimationCamera;
 class AIS_ViewCubeOwner;
 class Graphic3d_ArrayOfTriangles;
 class V3d_View;
 
 //! Interactive object for displaying the view manipulation cube.
 //!
 //! View cube consists of several parts that are responsible for different camera manipulations:
 //! @li Cube sides represent main views: top, bottom, left, right, front and back.
 //! @li Edges represent rotation of one of main views on 45 degrees.
 //! @li Vertices represent rotation of one of man views in two directions.
 //!
 //! The object is expected to behave like a trihedron in the view corner,
 //! therefore its position should be defined using transformation persistence flags:
 //! @code SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_TriedronPers, Aspect_TOTP_LEFT_LOWER, Graphic3d_Vec2i (100, 100)); @endcode
 //!
 //! View Cube parts are sensitive to detection, or dynamic highlighting (but not selection),
 //! and every its owner AIS_ViewCubeOwner corresponds to camera transformation.
 //! @code
 //!   for (aViewCube->StartAnimation (aDetectedOwner); aViewCube->HasAnimation(); )
 //!   {
 //!     aViewCube->UpdateAnimation();
 //!     ... // updating of application window
 //!   }
 //! @endcode
 //! or
 //! @code aViewCube->HandleClick (aDetectedOwner); @endcode
 //! that includes transformation loop.
 //! This loop allows external actions like application updating. For this purpose AIS_ViewCube has virtual interface onAfterAnimation(),
 //! that is to be redefined on application level.
 class AIS_ViewCube : public AIS_InteractiveObject
 {
   DEFINE_STANDARD_RTTIEXT(AIS_ViewCube, AIS_InteractiveObject)
 public:
 
   //! Return TRUE if specified orientation belongs to box side.
   Standard_EXPORT static bool IsBoxSide (V3d_TypeOfOrientation theOrient);
 
   //! Return TRUE if specified orientation belongs to box edge.
   Standard_EXPORT static bool IsBoxEdge (V3d_TypeOfOrientation theOrient);
 
   //! Return TRUE if specified orientation belongs to box corner (vertex).
   Standard_EXPORT static bool IsBoxCorner (V3d_TypeOfOrientation theOrient);
 
 public:
 
   //! Empty constructor.
   Standard_EXPORT AIS_ViewCube();
 
   //! Return view animation.
   const Handle(AIS_AnimationCamera)& ViewAnimation() const { return myViewAnimation; }
 
   //! Set view animation.
   void SetViewAnimation (const Handle(AIS_AnimationCamera)& theAnimation) { myViewAnimation = theAnimation; }
 
   //! Return TRUE if automatic camera transformation on selection (highlighting) is enabled; TRUE by default.
   Standard_Boolean ToAutoStartAnimation() const { return myToAutoStartAnim; }
 
   //! Enable/disable automatic camera transformation on selection (highlighting).
   //! The automatic logic can be disabled if application wants performing action manually
   //! basing on picking results (AIS_ViewCubeOwner).
   void SetAutoStartAnimation (bool theToEnable) { myToAutoStartAnim = theToEnable; }
 
   //! Return TRUE if camera animation should be done in uninterruptible loop; TRUE by default.
   Standard_Boolean IsFixedAnimationLoop() const { return myIsFixedAnimation; }
 
   //! Set if camera animation should be done in uninterruptible loop.
   void SetFixedAnimationLoop (bool theToEnable) { myIsFixedAnimation = theToEnable; }
 
   //! Reset all size and style parameters to default.
   //! @warning It doesn't reset position of View Cube
   Standard_EXPORT void ResetStyles();
 
 protected:
 
   //! Set default visual attributes
   Standard_EXPORT void setDefaultAttributes();
 
   //! Set default dynamic highlight properties
   Standard_EXPORT void setDefaultHighlightAttributes();
 
 public: //! @name Geometry management API
 
   //! @return size (width and height) of View cube sides; 100 by default.
   Standard_Real Size() const { return mySize; }
 
   //! Sets size (width and height) of View cube sides.
   //! @param theToAdaptAnother if TRUE, then other parameters will be adapted to specified size
   Standard_EXPORT void SetSize (Standard_Real theValue,
                                 Standard_Boolean theToAdaptAnother = true);
 
   //! Return box facet extension to edge/corner facet split; 10 by default.
   Standard_Real BoxFacetExtension() const { return myBoxFacetExtension; }
 
   //! Set new value of box facet extension.
   void SetBoxFacetExtension (Standard_Real theValue)
   {
     if (Abs (myBoxFacetExtension - theValue) > Precision::Confusion())
     {
       myBoxFacetExtension = theValue;
       SetToUpdate();
     }
   }
 
   //! Return padding between axes and 3D part (box); 10 by default.
   Standard_Real AxesPadding() const { return myAxesPadding; }
 
   //! Set new value of padding between axes and 3D part (box).
   void SetAxesPadding (Standard_Real theValue)
   {
     if (Abs (myAxesPadding - theValue) > Precision::Confusion())
     {
       myAxesPadding = theValue;
       SetToUpdate();
     }
   }
 
   //! Return gap between box edges and box sides; 0 by default.
   Standard_Real BoxEdgeGap() const { return myBoxEdgeGap; }
 
   //! Set new value of box edges gap.
   void SetBoxEdgeGap (Standard_Real theValue)
   {
     if (Abs (myBoxEdgeGap - theValue) > Precision::Confusion())
     {
       myBoxEdgeGap = theValue;
       SetToUpdate();
     }
   }
 
   //! Return minimal size of box edge; 2 by default.
   Standard_Real BoxEdgeMinSize() const { return myBoxEdgeMinSize; }
 
   //! Set new value of box edge minimal size.
   void SetBoxEdgeMinSize (Standard_Real theValue)
   {
     if (Abs (myBoxEdgeMinSize - theValue) > Precision::Confusion())
     {
       myBoxEdgeMinSize = theValue;
       SetToUpdate();
     }
   }
 
   //! Return minimal size of box corner; 2 by default.
   Standard_Real BoxCornerMinSize() const { return myCornerMinSize; }
 
   //! Set new value of box corner minimal size.
   void SetBoxCornerMinSize (Standard_Real theValue)
   {
     if (Abs (myCornerMinSize - theValue) > Precision::Confusion())
     {
       myCornerMinSize = theValue;
       SetToUpdate();
     }
   }
 
   //! Return relative radius of side corners (round rectangle); 0.0 by default.
   //! The value in within [0, 0.5] range meaning absolute radius = RoundRadius() / Size().
   Standard_Real RoundRadius() const { return myRoundRadius; }
 
   //! Set relative radius of View Cube sides corners (round rectangle).
   //! The value should be within [0, 0.5] range.
   Standard_EXPORT void SetRoundRadius (const Standard_Real theValue);
 
   //! Returns radius of axes of the trihedron; 1.0 by default.
   Standard_Real AxesRadius() const { return myAxesRadius; }
 
   //! Sets radius of axes of the trihedron.
   void SetAxesRadius (const Standard_Real theRadius)
   {
     if (Abs (myAxesRadius - theRadius) > Precision::Confusion())
     {
       myAxesRadius = theRadius;
       SetToUpdate();
     }
   }
 
   //! Returns radius of cone of axes of the trihedron; 3.0 by default.
   Standard_Real AxesConeRadius() const { return myAxesConeRadius; }
 
   //! Sets radius of cone of axes of the trihedron.
   void SetAxesConeRadius (Standard_Real theRadius)
   {
     if (Abs (myAxesConeRadius - theRadius) > Precision::Confusion())
     {
       myAxesConeRadius = theRadius;
       SetToUpdate();
     }
   }
 
   //! Returns radius of sphere (central point) of the trihedron; 4.0 by default.
   Standard_Real AxesSphereRadius() const { return myAxesSphereRadius; }
 
   //! Sets radius of sphere (central point) of the trihedron.
   void SetAxesSphereRadius (Standard_Real theRadius)
   {
     if (Abs (myAxesSphereRadius - theRadius) > Precision::Confusion())
     {
       myAxesSphereRadius = theRadius;
       SetToUpdate();
     }
   }
 
   //! @return TRUE if trihedron is drawn; TRUE by default.
   Standard_Boolean ToDrawAxes() const { return myToDisplayAxes; }
 
   //! Enable/disable drawing of trihedron.
   void SetDrawAxes (Standard_Boolean theValue)
   {
     if (myToDisplayAxes != theValue)
     {
       myToDisplayAxes = theValue;
       SetToUpdate();
     }
   }
 
   //! @return TRUE if edges of View Cube is drawn; TRUE by default.
   Standard_Boolean ToDrawEdges() const { return myToDisplayEdges; }
 
   //! Enable/disable drawing of edges of View Cube.
   void SetDrawEdges (Standard_Boolean theValue)
   {
     if (myToDisplayEdges != theValue)
     {
       myToDisplayEdges = theValue;
       SetToUpdate();
     }
   }
 
   //! Return TRUE if vertices (vertex) of View Cube is drawn; TRUE by default.
   Standard_Boolean ToDrawVertices() const { return myToDisplayVertices; }
 
   //! Enable/disable drawing of vertices (corners) of View Cube.
   void SetDrawVertices (Standard_Boolean theValue)
   {
     if (myToDisplayVertices != theValue)
     {
       myToDisplayVertices = theValue;
       SetToUpdate();
     }
   }
 
   //! Return TRUE if application expects Y-up viewer orientation instead of Z-up; FALSE by default.
   Standard_Boolean IsYup() const { return myIsYup; }
 
   //! Set if application expects Y-up viewer orientation instead of Z-up.
   Standard_EXPORT void SetYup (Standard_Boolean theIsYup,
                                Standard_Boolean theToUpdateLabels = Standard_True);
 
 public: //! @name Style management API
 
   //! Return shading style of box sides.
   const Handle(Prs3d_ShadingAspect)& BoxSideStyle() const { return myDrawer->ShadingAspect(); }
 
   //! Return shading style of box edges.
   const Handle(Prs3d_ShadingAspect)& BoxEdgeStyle() const { return myBoxEdgeAspect; }
 
   //! Return shading style of box corners.
   const Handle(Prs3d_ShadingAspect)& BoxCornerStyle() const { return myBoxCornerAspect; }
 
   //! Return value of front color for the 3D part of object.
   const Quantity_Color& BoxColor() const { return myDrawer->ShadingAspect()->Color(); }
 
   //! Set new value of front color for the 3D part of object.
   //! @param theColor [in] input color value.
   void SetBoxColor (const Quantity_Color& theColor)
   {
     if (!myDrawer->ShadingAspect()->Color().IsEqual (theColor)
      || !myBoxEdgeAspect  ->Color().IsEqual (theColor)
      || !myBoxCornerAspect->Color().IsEqual (theColor))
     {
       myDrawer->ShadingAspect()->SetColor (theColor);
       myBoxEdgeAspect->SetColor (theColor);
       myBoxCornerAspect->SetColor (theColor);
       SynchronizeAspects();
     }
   }
 
   //! Return transparency for 3D part of object.
   Standard_Real BoxTransparency() const { return myDrawer->ShadingAspect()->Transparency(); }
 
   //! Set new value of transparency for 3D part of object.
   //! @param theValue [in] input transparency value
   void SetBoxTransparency (Standard_Real theValue)
   {
     if (Abs (myDrawer->ShadingAspect()->Transparency() - theValue) > Precision::Confusion()
      || Abs (myBoxEdgeAspect  ->Transparency() - theValue) > Precision::Confusion()
      || Abs (myBoxCornerAspect->Transparency() - theValue) > Precision::Confusion())
     {
       myDrawer->ShadingAspect()->SetTransparency (theValue);
       myBoxEdgeAspect->SetTransparency (theValue);
       myBoxCornerAspect->SetTransparency (theValue);
       SynchronizeAspects();
     }
   }
 
   //! Return color of sides back material.
   const Quantity_Color& InnerColor() const { return myDrawer->ShadingAspect()->Color (Aspect_TOFM_BACK_SIDE); }
 
   //! Set color of sides back material. Alias for:
   //! @code Attributes()->ShadingAspect()->Aspect()->ChangeBackMaterial().SetColor() @endcode
   void SetInnerColor (const Quantity_Color& theColor)
   {
     myDrawer->ShadingAspect()->SetColor (theColor, Aspect_TOFM_BACK_SIDE);
     SynchronizeAspects();
   }
 
   //! Return box side label or empty string if undefined.
   //! Default labels: FRONT, BACK, LEFT, RIGHT, TOP, BOTTOM.
   TCollection_AsciiString BoxSideLabel (V3d_TypeOfOrientation theSide) const
   {
     const TCollection_AsciiString* aLabel = myBoxSideLabels.Seek (theSide);
     return aLabel != NULL ? *aLabel : TCollection_AsciiString();
   }
 
   //! Set box side label.
   void SetBoxSideLabel (const V3d_TypeOfOrientation theSide,
                         const TCollection_AsciiString& theLabel)
   {
     if (!IsBoxSide (theSide))
     {
       throw Standard_ProgramError ("AIS_ViewCube::SetBoxSideLabel(), invalid enumeration value");
     }
     myBoxSideLabels.Bind (theSide, theLabel);
     SetToUpdate();
   }
 
   //! Return text color of labels of box sides; BLACK by default.
   const Quantity_Color& TextColor() const { return myDrawer->TextAspect()->Aspect()->Color(); }
 
   //! Set color of text labels on box sides. Alias for:
   //! @code Attributes()->TextAspect()->SetColor() @endcode
   void SetTextColor (const Quantity_Color& theColor)
   {
     myDrawer->TextAspect()->SetColor (theColor);
     SynchronizeAspects();
   }
 
   //! Return font name that is used for displaying of sides and axes text. Alias for:
   //! @code Attributes()->TextAspect()->Aspect()->SetFont() @endcode
   const TCollection_AsciiString& Font() const { return myDrawer->TextAspect()->Aspect()->Font(); }
 
   //! Set font name that is used for displaying of sides and axes text. Alias for:
   //! @code Attributes()->TextAspect()->SetFont() @endcode
   void SetFont (const TCollection_AsciiString& theFont)
   {
     myDrawer->TextAspect()->Aspect()->SetFont (theFont);
     SynchronizeAspects();
   }
 
   //! Return height of font
   Standard_Real FontHeight() const { return myDrawer->TextAspect()->Height(); }
 
   //! Change font height. Alias for:
   //! @code Attributes()->TextAspect()->SetHeight() @endcode
   void SetFontHeight (Standard_Real theValue)
   {
     if (Abs (myDrawer->TextAspect()->Height() - theValue) > Precision::Confusion())
     {
       myDrawer->TextAspect()->SetHeight (theValue);
       SetToUpdate();
     }
   }
 
   //! Return axes labels or empty string if undefined.
   //! Default labels: X, Y, Z.
   TCollection_AsciiString AxisLabel (Prs3d_DatumParts theAxis) const
   {
     const TCollection_AsciiString* aLabel = myAxesLabels.Seek (theAxis);
     return aLabel != NULL ? *aLabel : TCollection_AsciiString();
   }
 
   //! Set axes labels.
   void SetAxesLabels (const TCollection_AsciiString& theX,
                       const TCollection_AsciiString& theY,
                       const TCollection_AsciiString& theZ)
   {
     myAxesLabels.Bind (Prs3d_DatumParts_XAxis, theX);
     myAxesLabels.Bind (Prs3d_DatumParts_YAxis, theY);
     myAxesLabels.Bind (Prs3d_DatumParts_ZAxis, theZ);
     SetToUpdate();
   }
 
 public:
 
   //! Set new value of color for the whole object.
   //! @param theColor [in] input color value.
   virtual void SetColor (const Quantity_Color& theColor) Standard_OVERRIDE
   {
     SetBoxColor (theColor);
   }
 
   //! Reset color for the whole object.
   virtual void UnsetColor() Standard_OVERRIDE
   {
     myDrawer->ShadingAspect()->SetColor (Quantity_NOC_WHITE);
     myBoxEdgeAspect  ->SetColor (Quantity_NOC_GRAY30);
     myBoxCornerAspect->SetColor (Quantity_NOC_GRAY30);
     SynchronizeAspects();
   }
 
   //! Set new value of transparency for the whole object.
   //! @param theValue [in] input transparency value.
   virtual void SetTransparency (const Standard_Real theValue) Standard_OVERRIDE
   {
     SetBoxTransparency (theValue);
   }
 
   //! Reset transparency for the whole object.
   virtual void UnsetTransparency() Standard_OVERRIDE
   {
     SetBoxTransparency (0.0f);
   }
 
   //! Sets the material for the interactive object.
   virtual void SetMaterial (const Graphic3d_MaterialAspect& theMat) Standard_OVERRIDE
   {
     myDrawer->ShadingAspect()->SetMaterial (theMat);
     myBoxEdgeAspect  ->SetMaterial (theMat);
     myBoxCornerAspect->SetMaterial (theMat);
     SynchronizeAspects();
   }
 
   //! Sets the material for the interactive object.
   virtual void UnsetMaterial() Standard_OVERRIDE
   {
     Graphic3d_MaterialAspect aMat (Graphic3d_NameOfMaterial_UserDefined);
     aMat.SetColor (Quantity_NOC_WHITE);
     aMat.SetAmbientColor (Quantity_NOC_GRAY60);
     myDrawer->ShadingAspect()->SetMaterial (aMat);
     myBoxEdgeAspect  ->SetMaterial (aMat);
     myBoxEdgeAspect  ->SetColor (Quantity_NOC_GRAY30);
     myBoxCornerAspect->SetMaterial (aMat);
     myBoxCornerAspect->SetColor (Quantity_NOC_GRAY30);
     SynchronizeAspects();
   }
 
 public: //! @name animation methods
 
   //! Return duration of animation in seconds; 0.5 sec by default
   Standard_EXPORT Standard_Real Duration() const;
 
   //! Set duration of animation.
   //! @param theValue [in] input value of duration in seconds
   Standard_EXPORT void SetDuration (Standard_Real theValue);
 
   //! Return TRUE if new camera Up direction should be always set to default value for a new camera Direction; FALSE by default.
   //! When this flag is FALSE, the new camera Up will be set as current Up orthogonalized to the new camera Direction,
   //! and will set to default Up on second click.
   Standard_Boolean ToResetCameraUp() const { return myToResetCameraUp; }
 
   //! Set if new camera Up direction should be always set to default value for a new camera Direction.
   void SetResetCamera (Standard_Boolean theToReset) { myToResetCameraUp = theToReset; }
 
   //! Return TRUE if animation should fit selected objects and FALSE to fit entire scene; TRUE by default.
   Standard_Boolean ToFitSelected() const { return myToFitSelected; }
 
   //! Set if animation should fit selected objects or to fit entire scene.
   void SetFitSelected (Standard_Boolean theToFitSelected) { myToFitSelected = theToFitSelected; }
 
   //! @return TRUE if View Cube has unfinished animation of view camera.
   Standard_EXPORT Standard_Boolean HasAnimation() const;
 
   //! Start camera transformation corresponding to the input detected owner.
   //! @param theOwner [in] detected owner.
   Standard_EXPORT virtual void StartAnimation (const Handle(AIS_ViewCubeOwner)& theOwner);
 
   //! Perform one step of current camera transformation.
   //! theToUpdate [in] enable/disable update of view.
   //! @return TRUE if animation is not stopped.
   Standard_EXPORT virtual Standard_Boolean UpdateAnimation (const Standard_Boolean theToUpdate);
 
   //! Perform camera transformation corresponding to the input detected owner.
   Standard_EXPORT virtual void HandleClick (const Handle(AIS_ViewCubeOwner)& theOwner);
 
 protected:
 
   //! Perform internal single step of animation.
   //! @return FALSE if animation has been finished
   Standard_EXPORT Standard_Boolean updateAnimation();
 
   //! Fit selected/all into view.
   //! @param theView [in] view definition to retrieve scene bounding box
   //! @param theCamera [in,out] camera definition
   Standard_EXPORT virtual void viewFitAll (const Handle(V3d_View)& theView,
                                            const Handle(Graphic3d_Camera)& theCamera);
 
 protected: //! @name protected virtual API
 
   //! Method that is called after one step of transformation.
   virtual void onAfterAnimation() {}
 
   //! Method that is called after transformation finish.
   virtual void onAnimationFinished() {}
 
 public: //! @name Presentation computation
 
   //! Return TRUE for supported display mode.
   virtual Standard_Boolean AcceptDisplayMode (const Standard_Integer theMode) const Standard_OVERRIDE { return theMode == 0; }
 
   //! Global selection has no meaning for this class.
   virtual Handle(SelectMgr_EntityOwner) GlobalSelOwner() const Standard_OVERRIDE { return Handle(SelectMgr_EntityOwner)(); }
 
   //! Compute 3D part of View Cube.
   //! @param thePrsMgr [in] presentation manager.
   //! @param thePrs [in] input presentation that is to be filled with flat presentation primitives.
   //! @param theMode [in] display mode.
   //! @warning this object accept only 0 display mode.
   Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager)& thePrsMgr,
                                         const Handle(Prs3d_Presentation)& thePrs,
                                         const Standard_Integer theMode = 0) Standard_OVERRIDE;
 
   //! Redefine computing of sensitive entities for View Cube.
   //! @param theSelection [in] input selection object that is to be filled with sensitive entities.
   //! @param theMode [in] selection mode.
   //! @warning object accepts only 0 selection mode.
   Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& theSelection,
                                                  const Standard_Integer theMode) Standard_OVERRIDE;
 
   //! Disables auto highlighting to use HilightSelected() and HilightOwnerWithColor() overridden methods.
   virtual Standard_Boolean IsAutoHilight() const Standard_OVERRIDE { return Standard_False; }
 
   //! Method which clear all selected owners belonging to this selectable object.
   //! @warning this object does not support selection.
   virtual void ClearSelected() Standard_OVERRIDE {}
 
   //! Method which highlights input owner belonging to this selectable object.
   //! @param thePM [in] presentation manager
   //! @param theStyle [in] style for dynamic highlighting.
   //! @param theOwner [in] input entity owner.
   Standard_EXPORT virtual void HilightOwnerWithColor (const Handle(PrsMgr_PresentationManager)& thePM,
                                                       const Handle(Prs3d_Drawer)& theStyle,
                                                       const Handle(SelectMgr_EntityOwner)& theOwner) Standard_OVERRIDE;
 
   //! Method which draws selected owners.
   Standard_EXPORT virtual void HilightSelected (const Handle(PrsMgr_PresentationManager)& thePM,
                                                 const SelectMgr_SequenceOfOwner& theSeq) Standard_OVERRIDE;
 
   //! Set default parameters for visual attributes
   //! @sa Attributes()
   virtual void UnsetAttributes() Standard_OVERRIDE
   {
     setDefaultAttributes();
     SetToUpdate();
   }
 
   //! Set default parameters for dynamic highlighting attributes, reset highlight attributes
   virtual void UnsetHilightAttributes() Standard_OVERRIDE
   {
     myHilightDrawer.Nullify();
     setDefaultHighlightAttributes();
     SetToUpdate();
   }
 
 protected: //! @name Auxiliary classes to fill presentation with proper primitives
 
   //! Create triangulation for a box part - for presentation and selection purposes.
   //! @param theTris    [in,out] triangulation to fill, or NULL to return size
   //! @param theNbNodes [in,out] should be incremented by a number of nodes defining this triangulation
   //! @param theNbTris  [in,out] should be incremented by a number of triangles defining this triangulation
   //! @param theDir     [in] part to define
   Standard_EXPORT virtual void createBoxPartTriangles (const Handle(Graphic3d_ArrayOfTriangles)& theTris,
                                                        Standard_Integer& theNbNodes,
                                                        Standard_Integer& theNbTris,
                                                        V3d_TypeOfOrientation theDir) const;
 
   //! Create triangulation for a box side.
   //! @param theTris    [in,out] triangulation to fill, or NULL to return size
   //! @param theNbNodes [in,out] should be incremented by a number of nodes defining this triangulation
   //! @param theNbTris  [in,out] should be incremented by a number of triangles defining this triangulation
   //! @param theDir     [in] part to define
   Standard_EXPORT virtual void createBoxSideTriangles (const Handle(Graphic3d_ArrayOfTriangles)& theTris,
                                                        Standard_Integer& theNbNodes,
                                                        Standard_Integer& theNbTris,
                                                        V3d_TypeOfOrientation theDir) const;
 
   //! Create triangulation for a box edge.
   //! @param theTris    [in,out] triangulation to fill, or NULL to return size
   //! @param theNbNodes [in,out] should be incremented by a number of nodes defining this triangulation
   //! @param theNbTris  [in,out] should be incremented by a number of triangles defining this triangulation
   //! @param theDir     [in] part to define
   Standard_EXPORT virtual void createBoxEdgeTriangles (const Handle(Graphic3d_ArrayOfTriangles)& theTris,
                                                        Standard_Integer& theNbNodes,
                                                        Standard_Integer& theNbTris,
                                                        V3d_TypeOfOrientation theDir) const;
 
   //! Create triangulation for a box corner (vertex).
   //! @param theTris    [in,out] triangulation to fill, or NULL to return size
   //! @param theNbNodes [in,out] should be incremented by a number of nodes defining this triangulation
   //! @param theNbTris  [in,out] should be incremented by a number of triangles defining this triangulation
   //! @param theDir     [in] part to define
   Standard_EXPORT virtual void createBoxCornerTriangles (const Handle(Graphic3d_ArrayOfTriangles)& theTris,
                                                          Standard_Integer& theNbNodes,
                                                          Standard_Integer& theNbTris,
                                                          V3d_TypeOfOrientation theDir) const;
 
 protected:
 
   //! Create triangulation for a rectangle with round corners.
   //! @param theTris    [in,out] triangulation to fill, or NULL to return size
   //! @param theNbNodes [in,out] should be incremented by a number of nodes defining this triangulation
   //! @param theNbTris  [in,out] should be incremented by a number of triangles defining this triangulation
   //! @param theSize    [in] rectangle dimensions
   //! @param theRadius  [in] radius at corners
   //! @param theTrsf    [in] transformation
   Standard_EXPORT static void createRoundRectangleTriangles (const Handle(Graphic3d_ArrayOfTriangles)& theTris,
                                                              Standard_Integer& theNbNodes,
                                                              Standard_Integer& theNbTris,
                                                              const gp_XY& theSize,
                                                              Standard_Real theRadius,
                                                              const gp_Trsf& theTrsf);
 
 protected:
 
   NCollection_DataMap<V3d_TypeOfOrientation, TCollection_AsciiString>
                                 myBoxSideLabels;     //!< map with box side labels
   NCollection_DataMap<Prs3d_DatumParts, TCollection_AsciiString>
                                 myAxesLabels;        //!< map with axes labels
   Handle(Prs3d_ShadingAspect)   myBoxEdgeAspect;     //!< style for box edges
   Handle(Prs3d_ShadingAspect)   myBoxCornerAspect;   //!< style for box corner
 
   Standard_Real                 mySize;              //!< size of box side, length of one axis
   Standard_Real                 myBoxEdgeMinSize;    //!< minimal size of box edge
   Standard_Real                 myBoxEdgeGap;        //!< gap between box side and box edge
   Standard_Real                 myBoxFacetExtension; //!< box facet extension
   Standard_Real                 myAxesPadding;       //!< Padding between box and axes
   Standard_Real                 myAxesRadius;        //!< radius of axes of the trihedron; 1.0 by default
   Standard_Real                 myAxesConeRadius;    //!< radius of cone of axes of the trihedron; 3.0 by default
   Standard_Real                 myAxesSphereRadius;  //!< radius of sphere (central point) of the trihedron; 4.0 by default
   Standard_Real                 myCornerMinSize;     //!< minimal size of box corner
   Standard_Real                 myRoundRadius;       //!< relative round radius within [0; 0.5] range
   Standard_Boolean              myToDisplayAxes;     //!< trihedron visibility
   Standard_Boolean              myToDisplayEdges;    //!< box edges visibility
   Standard_Boolean              myToDisplayVertices; //!< box corners (vertices) visibility
   Standard_Boolean              myIsYup;             //!< flag indicating that application expects Y-up viewer orientation instead of Z-up
 
 protected: //! @name Animation options
 
   Handle(AIS_AnimationCamera)   myViewAnimation;     //!< Camera animation object
   Handle(Graphic3d_Camera)      myStartState;        //!< Start state of view camera
   Handle(Graphic3d_Camera)      myEndState;          //!< End state of view camera
   Standard_Boolean              myToAutoStartAnim;   //!< start animation automatically on click
   Standard_Boolean              myIsFixedAnimation;  //!< fixed-loop animation
   Standard_Boolean              myToFitSelected;     //!< fit selected or fit entire scene
   Standard_Boolean              myToResetCameraUp;   //!< always reset camera up direction to default
 
 };
 
 //! Redefined entity owner that is highlighted when owner is detected,
 //! even if Interactive Context highlighted on last detection procedure.
 class AIS_ViewCubeOwner : public SelectMgr_EntityOwner
 {
   DEFINE_STANDARD_RTTIEXT(AIS_ViewCubeOwner, SelectMgr_EntityOwner)
 public:
 
   //! Main constructor.
   AIS_ViewCubeOwner (const Handle(AIS_ViewCube)& theObject,
                      V3d_TypeOfOrientation theOrient,
                      Standard_Integer thePriority = 5)
   : SelectMgr_EntityOwner ((const Handle(SelectMgr_SelectableObject)& )theObject, thePriority),
     myMainOrient (theOrient)
   {
     myFromDecomposition = true;
   }
 
   //! @return TRUE. This owner will always call method
   //! Hilight for its Selectable Object when the owner is detected.
   virtual Standard_Boolean IsForcedHilight() const Standard_OVERRIDE { return Standard_True; }
 
   //! Return new orientation to set.
   V3d_TypeOfOrientation MainOrientation() const { return myMainOrient; }
 
   //! Handle mouse button click event.
   virtual Standard_Boolean HandleMouseClick (const Graphic3d_Vec2i& thePoint,
                                              Aspect_VKeyMouse theButton,
                                              Aspect_VKeyFlags theModifiers,
                                              bool theIsDoubleClick) Standard_OVERRIDE
   {
     (void )thePoint; (void )theButton; (void )theModifiers; (void )theIsDoubleClick;
     AIS_ViewCube* aCubePrs = dynamic_cast<AIS_ViewCube* >(mySelectable);
     aCubePrs->HandleClick (this);
     return Standard_True;
   }
 
 protected:
 
   V3d_TypeOfOrientation myMainOrient; //!< new orientation to set
 
 };
 
 //! Simple sensitive element for picking by point only.
 class AIS_ViewCubeSensitive : public Select3D_SensitivePrimitiveArray
 {
   DEFINE_STANDARD_RTTIEXT(AIS_ViewCubeSensitive, Select3D_SensitivePrimitiveArray)
 public:
 
   //! Constructor.
   Standard_EXPORT AIS_ViewCubeSensitive (const Handle(SelectMgr_EntityOwner)& theOwner,
                                          const Handle(Graphic3d_ArrayOfTriangles)& theTris);
 
   //! Checks whether element overlaps current selecting volume.
   Standard_EXPORT virtual Standard_Boolean Matches (SelectBasics_SelectingVolumeManager& theMgr,
                                                     SelectBasics_PickResult& thePickResult) Standard_OVERRIDE;
 
 protected:
 
   //! Checks if picking ray can be used for detection.
   Standard_EXPORT bool isValidRay (const SelectBasics_SelectingVolumeManager& theMgr) const;
 
 };
 
 #endif // _AIS_ViewCube_HeaderFile

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