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 // Created on: 2015-12-23
 // Created by: Anastasia BORISOVA
 // Copyright (c) 2015 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_Manipulator_HeaderFile
 #define _AIS_Manipulator_HeaderFile
 
 #include <AIS_InteractiveObject.hxx>
 #include <AIS_ManipulatorMode.hxx>
 #include <gp_Ax1.hxx>
 #include <gp_Dir.hxx>
 #include <gp_Pnt.hxx>
 #include <Graphic3d_ArrayOfTriangles.hxx>
 #include <Graphic3d_Group.hxx>
 #include <NCollection_HSequence.hxx>
 #include <Poly_Triangulation.hxx>
 #include <V3d_View.hxx>
 #include <Standard_DefineHandle.hxx>
 
 NCOLLECTION_HSEQUENCE(AIS_ManipulatorObjectSequence, Handle(AIS_InteractiveObject))
 
 DEFINE_STANDARD_HANDLE (AIS_Manipulator, AIS_InteractiveObject)
 
 //! Interactive object class to manipulate local transformation of another interactive
 //! object or a group of objects via mouse.
 //! It manages three types of manipulations in 3D space:
 //! - translation through axis
 //! - scaling within axis
 //! - rotation around axis
 //! To enable one of this modes, selection mode (from 1 to 3) is to be activated.
 //! There are three orthogonal transformation axes defined by position property of
 //! the manipulator. Particular transformation mode can be disabled for each
 //! of the axes or all of them. Furthermore each of the axes can be hidden or
 //! made visible.
 //! The following steps demonstrate how to attach, configure and use manipulator
 //! for an interactive object:
 //! Step 1. Create manipulator object and adjust it appearance:
 //! @code
 //! Handle(AIS_Manipulator) aManipulator = new AIS_Manipulator();
 //! aManipulator->SetPart (0, AIS_Manipulator::Scaling, Standard_False);
 //! aManipulator->SetPart (1, AIS_Manipulator::Rotation, Standard_False);
 //! // Attach manipulator to already displayed object and manage manipulation modes
 //! aManipulator->AttachToObject (anAISObject);
 //! aManipulator->EnableMode (AIS_Manipulator::Translation);
 //! aManipulator->EnableMode (AIS_Manipulator::Rotation);
 //! aManipulator->EnableMode (AIS_Manipulator::Scaling);
 //! @endcode
 //! Note that you can enable only one manipulation mode but have all visual parts displayed.
 //! This code allows you to view manipulator and select its manipulation parts.
 //! Note that manipulator activates mode on part selection.
 //! If this mode is activated, no selection will be performed for manipulator.
 //! It can be activated with highlighting. To enable this:
 //! @code
 //! aManipulator->SetModeActivationOnDetection (Standard_True);
 //! @endcode
 //! Step 2. To perform transformation of object use next code in your event processing chain:
 //! @code
 //! // catch mouse button down event
 //! if (aManipulator->HasActiveMode())
 //! {
 //!   aManipulator->StartTransform (anXPix, anYPix, aV3dView);
 //! }
 //! ...
 //! // or track mouse move event
 //! if (aManipulator->HasActiveMode())
 //! {
 //!   aManipulator->Transform (anXPix, anYPix, aV3dView);
 //!   aV3dView->Redraw();
 //! }
 //! ...
 //! // or catch mouse button up event (apply) or escape event (cancel)
 //! aManipulator->StopTransform(/*Standard_Boolean toApply*/);
 //! @endcode
 //! Step 3. To deactivate current manipulation mode use:
 //! @code aManipulator->DeactivateCurrentMode();
 //! @endcode
 //! Step 4. To detach manipulator from object use:
 //! @code
 //! aManipulator->Detach();
 //! @endcode
 //! The last method erases manipulator object.
 class AIS_Manipulator : public AIS_InteractiveObject
 {
 public:
 
   //! Constructs a manipulator object with default placement and all parts to be displayed.
   Standard_EXPORT AIS_Manipulator();
 
   //! Constructs a manipulator object with input location and positions of axes and all parts to be displayed.
   Standard_EXPORT AIS_Manipulator (const gp_Ax2& thePosition);
 
   //! Disable or enable visual parts for translation, rotation or scaling for some axis.
   //! By default all parts are enabled (will be displayed).
   //! @warning Enabling or disabling of visual parts of manipulator does not manage the manipulation (selection) mode.
   //! @warning Raises program error if axis index is < 0 or > 2.
   Standard_EXPORT void SetPart (const Standard_Integer theAxisIndex, const AIS_ManipulatorMode theMode, const Standard_Boolean theIsEnabled);
 
   //! Disable or enable visual parts for translation, rotation or scaling for ALL axes.
   //! By default all parts are enabled (will be displayed).
   //! @warning Enabling or disabling of visual parts of manipulator does not manage the manipulation (selection) mode.
   //! @warning Raises program error if axis index is < 0 or > 2.
   Standard_EXPORT void SetPart (const AIS_ManipulatorMode theMode, const Standard_Boolean theIsEnabled);
 
   //! Behavior settings to be applied when performing transformation:
   //! - FollowTranslation - whether the manipulator will be moved together with an object.
   //! - FollowRotation - whether the manipulator will be rotated together with an object.
   struct OptionsForAttach {
 
     OptionsForAttach() : AdjustPosition (Standard_True), AdjustSize (Standard_False), EnableModes (Standard_True) {}
     OptionsForAttach& SetAdjustPosition (const Standard_Boolean theApply) { AdjustPosition = theApply; return *this; }
     OptionsForAttach& SetAdjustSize     (const Standard_Boolean theApply) { AdjustSize     = theApply; return *this; }
     OptionsForAttach& SetEnableModes    (const Standard_Boolean theApply) { EnableModes    = theApply; return *this; }
 
     Standard_Boolean AdjustPosition;
     Standard_Boolean AdjustSize;
     Standard_Boolean EnableModes;
   };
 
   //! Attaches himself to the input interactive object and become displayed in the same context.
   //! It is placed in the center of object bounding box, and its size is adjusted to the object bounding box.
   Standard_EXPORT void Attach (const Handle(AIS_InteractiveObject)& theObject, const OptionsForAttach& theOptions = OptionsForAttach());
 
   //! Attaches himself to the input interactive object group and become displayed in the same context.
   //! It become attached to the first object, baut manage manipulation of the whole group.
   //! It is placed in the center of object bounding box, and its size is adjusted to the object bounding box.
   Standard_EXPORT void Attach (const Handle(AIS_ManipulatorObjectSequence)& theObject, const OptionsForAttach& theOptions = OptionsForAttach());
 
   //! Enable manipualtion mode.
   //! @warning It activates selection mode in the current context.
   //! If manipulator is not displayed, no mode will be activated.
   Standard_EXPORT void EnableMode (const AIS_ManipulatorMode theMode);
 
   //! Enables mode activation on detection (highlighting).
   //! By default, mode is activated on selection of manipulator part.
   //! @warning If this mode is enabled, selection of parts does nothing.
   void SetModeActivationOnDetection (const Standard_Boolean theToEnable)
   {
     myIsActivationOnDetection = theToEnable;
   }
 
   //! @return true if manual mode activation is enabled.
   Standard_Boolean IsModeActivationOnDetection() const
   {
     return myIsActivationOnDetection;
   }
 
 public:
   //! Drag object in the viewer.
   //! @param theCtx      [in] interactive context
   //! @param theView     [in] active View
   //! @param theOwner    [in] the owner of detected entity
   //! @param theDragFrom [in] drag start point
   //! @param theDragTo   [in] drag end point
   //! @param theAction   [in] drag action
   //! @return FALSE if object rejects dragging action (e.g. AIS_DragAction_Start)
   Standard_EXPORT virtual Standard_Boolean ProcessDragging (const Handle(AIS_InteractiveContext)& theCtx,
                                                             const Handle(V3d_View)& theView,
                                                             const Handle(SelectMgr_EntityOwner)& theOwner,
                                                             const Graphic3d_Vec2i& theDragFrom,
                                                             const Graphic3d_Vec2i& theDragTo,
                                                             const AIS_DragAction theAction) Standard_OVERRIDE;
 
   //! Init start (reference) transformation.
   //! @warning It is used in chain with StartTransform-Transform(gp_Trsf)-StopTransform
   //! and is used only for custom transform set. If Transform(const Standard_Integer, const Standard_Integer) is used,
   //! initial data is set automatically, and it is reset on DeactivateCurrentMode call if it is not reset yet.
   Standard_EXPORT void StartTransform (const Standard_Integer theX, const Standard_Integer theY, const Handle(V3d_View)& theView);
 
   //! Apply to the owning objects the input transformation.
   //! @remark The transformation is set using SetLocalTransformation for owning objects.
   //! The location of the manipulator is stored also in Local Transformation,
   //! so that there's no need to redisplay objects.
   //! @warning It is used in chain with StartTransform-Transform(gp_Trsf)-StopTransform
   //! and is used only for custom transform set.
   //! @warning It will does nothing if transformation is not initiated (with StartTransform() call).
   Standard_EXPORT void Transform (const gp_Trsf& aTrsf);
 
   //! Reset start (reference) transformation.
   //! @param theToApply [in] option to apply or to cancel the started transformation.
   //! @warning It is used in chain with StartTransform-Transform(gp_Trsf)-StopTransform
   //! and is used only for custom transform set.
   Standard_EXPORT void StopTransform (const Standard_Boolean theToApply = Standard_True);
 
   //! Apply transformation made from mouse moving from start position
   //! (save on the first Transform() call and reset on DeactivateCurrentMode() call.)
   //! to the in/out mouse position (theX, theY)
   Standard_EXPORT gp_Trsf Transform (const Standard_Integer theX, const Standard_Integer theY,
                                      const Handle(V3d_View)& theView);
 
   //! Computes transformation of parent object according to the active mode and input motion vector.
   //! You can use this method to get object transformation according to current mode or use own algorithm
   //! to implement any other transformation for modes.
   //! @return transformation of parent object.
   Standard_EXPORT Standard_Boolean ObjectTransformation (const Standard_Integer theX, const Standard_Integer theY,
                                                          const Handle(V3d_View)& theView, gp_Trsf& theTrsf);
 
   //! Make inactive the current selected manipulator part and reset current axis index and current mode.
   //! After its call HasActiveMode() returns false.
   //! @sa HasActiveMode()
   Standard_EXPORT void DeactivateCurrentMode();
 
   //! Detaches himself from the owner object, and removes itself from context.
   Standard_EXPORT void Detach();
 
   //! @return all owning objects.
   Standard_EXPORT Handle(AIS_ManipulatorObjectSequence) Objects() const;
 
   //! @return the first (leading) object of the owning objects.
   Standard_EXPORT Handle(AIS_InteractiveObject) Object() const;
 
   //! @return one of the owning objects.
   //! @warning raises program error if theIndex is more than owning objects count or less than 1.
   Standard_EXPORT Handle(AIS_InteractiveObject) Object (const Standard_Integer theIndex) const;
 
   //! @return true if manipulator is attached to some interactive object (has owning object).
   Standard_Boolean IsAttached() const { return HasOwner(); }
 
   //! @return true if some part of manipulator is selected (transformation mode is active, and owning object can be transformed).
   Standard_Boolean HasActiveMode() const { return IsAttached() && myCurrentMode != AIS_MM_None; }
 
   Standard_Boolean HasActiveTransformation() { return myHasStartedTransformation; }
 
   gp_Trsf StartTransformation() const { return !myStartTrsfs.IsEmpty() ? myStartTrsfs.First() : gp_Trsf(); }
 
   gp_Trsf StartTransformation (Standard_Integer theIndex) const
   {
     Standard_ProgramError_Raise_if (theIndex < 1 || theIndex > Objects()->Upper(),
       "AIS_Manipulator::StartTransformation(): theIndex is out of bounds");
     return !myStartTrsfs.IsEmpty() ? myStartTrsfs (theIndex) : gp_Trsf();
   }
 
 public: //! @name Configuration of graphical transformations
 
   //! Enable or disable zoom persistence mode for the manipulator. With
   //! this mode turned on the presentation will keep fixed screen size.
   //! @warning when turned on this option overrides transform persistence
   //! properties and local transformation to achieve necessary visual effect.
   //! @warning revise use of AdjustSize argument of of \sa AttachToObjects method
   //! when enabling zoom persistence.
   Standard_EXPORT void SetZoomPersistence (const Standard_Boolean theToEnable);
 
   //! Returns state of zoom persistence mode, whether it turned on or off.
   Standard_Boolean ZoomPersistence() const { return myIsZoomPersistentMode; }
 
   //! Redefines transform persistence management to setup transformation for sub-presentation of axes.
   //! @warning this interactive object does not support custom transformation persistence when
   //! using \sa ZoomPersistence mode. In this mode the transformation persistence flags for
   //! presentations are overridden by this class.
   //! @warning Invokes debug assertion to catch incompatible usage of the method with \sa ZoomPersistence mode,
   //! silently does nothing in release mode.
   //! @warning revise use of AdjustSize argument of of \sa AttachToObjects method
   //! when enabling zoom persistence.
   Standard_EXPORT virtual void SetTransformPersistence (const  Handle(Graphic3d_TransformPers)& theTrsfPers) Standard_OVERRIDE;
 
 public: //! @name Setters for parameters
 
   AIS_ManipulatorMode ActiveMode() const { return myCurrentMode; }
 
   Standard_Integer ActiveAxisIndex() const { return myCurrentIndex; }
 
   //! @return poition of manipulator interactive object.
   const gp_Ax2& Position() const { return myPosition; }
 
   //! Sets position of the manipulator object.
   Standard_EXPORT void SetPosition (const gp_Ax2& thePosition);
 
   Standard_ShortReal Size() const { return myAxes[0].Size(); }
 
   //! Sets size (length of side of the manipulator cubic bounding box.
   Standard_EXPORT void SetSize (const Standard_ShortReal theSideLength);
 
   //! Sets gaps between translator, scaler and rotator sub-presentations.
   Standard_EXPORT void SetGap (const Standard_ShortReal theValue);
 
 public:
 
   //! Behavior settings to be applied when performing transformation:
   //! - FollowTranslation - whether the manipulator will be moved together with an object.
   //! - FollowRotation - whether the manipulator will be rotated together with an object.
   struct BehaviorOnTransform {
 
     BehaviorOnTransform() : FollowTranslation (Standard_True), FollowRotation (Standard_True), FollowDragging (Standard_True) {}
     BehaviorOnTransform& SetFollowTranslation (const Standard_Boolean theApply) { FollowTranslation = theApply; return *this; }
     BehaviorOnTransform& SetFollowRotation    (const Standard_Boolean theApply) { FollowRotation    = theApply; return *this; }
     BehaviorOnTransform& SetFollowDragging    (const Standard_Boolean theApply) { FollowDragging    = theApply; return *this; }
 
     Standard_Boolean FollowTranslation;
     Standard_Boolean FollowRotation;
     Standard_Boolean FollowDragging;
   };
 
   //! Sets behavior settings for transformation action carried on the manipulator,
   //! whether it translates, rotates together with the transformed object or not.
   void SetTransformBehavior (const BehaviorOnTransform& theSettings) { myBehaviorOnTransform = theSettings; }
 
   //! @return behavior settings for transformation action of the manipulator.
   BehaviorOnTransform& ChangeTransformBehavior() { return myBehaviorOnTransform; }
 
   //! @return behavior settings for transformation action of the manipulator.
   const BehaviorOnTransform& TransformBehavior() const { return myBehaviorOnTransform; }
 
 public: //! @name Presentation computation
 
   //! Fills presentation.
   //! @note Manipulator presentation does not use display mode and for all modes has the same presentation.
   Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager)& thePrsMgr,
                                         const Handle(Prs3d_Presentation)& thePrs,
                                         const Standard_Integer theMode = 0) Standard_OVERRIDE;
 
   //! Computes selection sensitive zones (triangulation) for manipulator.
   //! @param theNode [in] Selection mode that is treated as transformation 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 ( for fast presentation draw ).
   Standard_EXPORT virtual void ClearSelected() Standard_OVERRIDE;
 
   //! Method which draws selected owners ( for fast presentation draw ).
   Standard_EXPORT virtual void HilightSelected (const Handle(PrsMgr_PresentationManager)& thePM, const SelectMgr_SequenceOfOwner& theSeq) Standard_OVERRIDE;
 
   //! Method which hilight an owner belonging to
   //! this selectable object  ( for fast presentation draw ).
   Standard_EXPORT virtual void HilightOwnerWithColor (const Handle(PrsMgr_PresentationManager)& thePM,
                                                       const Handle(Prs3d_Drawer)& theStyle,
                                                       const Handle(SelectMgr_EntityOwner)& theOwner) Standard_OVERRIDE;
 
 protected:
 
   Standard_EXPORT void init();
 
   Standard_EXPORT void updateTransformation();
 
   Standard_EXPORT Handle(Prs3d_Presentation) getHighlightPresentation (const Handle(SelectMgr_EntityOwner)& theOwner) const;
 
   Standard_EXPORT Handle(Graphic3d_Group) getGroup (const Standard_Integer theIndex, const AIS_ManipulatorMode theMode) const;
 
   Standard_EXPORT void attachToBox (const Bnd_Box& theBox);
 
   Standard_EXPORT void adjustSize (const Bnd_Box& theBox);
 
   Standard_EXPORT void setTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers);
 
   //! Redefines local transformation management method to inform user of improper use.
   //! @warning this interactive object does not support setting custom local transformation,
   //! this class solely uses this property to implement visual positioning of the manipulator
   //! without need for recomputing presentation.
   //! @warning Invokes debug assertion in debug to catch incompatible usage of the
   //! method, silently does nothing in release mode.
   Standard_EXPORT virtual void setLocalTransformation (const Handle(TopLoc_Datum3D)& theTrsf) Standard_OVERRIDE;
   using AIS_InteractiveObject::SetLocalTransformation; // hide visibility
 
 protected: //! @name Auxiliary classes to fill presentation with proper primitives
 
   class Quadric
   {
   public:
 
     virtual ~Quadric()
     {
       myTriangulation.Nullify();
       myArray.Nullify();
     }
 
 
     const Handle(Poly_Triangulation)& Triangulation() const { return myTriangulation; }
 
     const Handle(Graphic3d_ArrayOfTriangles)& Array() const { return myArray; }
 
   protected:
 
     Handle(Poly_Triangulation) myTriangulation;
     Handle(Graphic3d_ArrayOfTriangles) myArray;
   };
 
   class Disk : public Quadric
   {
   public:
 
     Disk()
       : Quadric(),
       myInnerRad(0.0f),
       myOuterRad(1.0f)
     { }
 
     ~Disk() { }
 
     void Init (const Standard_ShortReal theInnerRadius,
                const Standard_ShortReal theOuterRadius,
                const gp_Ax1& thePosition,
                const Standard_Integer theSlicesNb = 20,
                const Standard_Integer theStacksNb = 20);
 
   protected:
 
     gp_Ax1             myPosition;
     Standard_ShortReal myInnerRad;
     Standard_ShortReal myOuterRad;
   };
 
   class Sphere : public Quadric
   {
   public:
     Sphere()
       : Quadric(),
       myRadius(1.0f)
     {}
 
     void Init (const Standard_ShortReal theRadius,
                const gp_Pnt& thePosition,
                const Standard_Integer theSlicesNb = 20,
                const Standard_Integer theStacksNb = 20);
 
   protected:
 
     gp_Pnt myPosition;
     Standard_ShortReal myRadius;
   };
 
   class Cube
   {
   public:
 
     Cube() { }
     ~Cube() { }
 
     void Init (const gp_Ax1& thePosition, const Standard_ShortReal myBoxSize);
 
     const Handle(Poly_Triangulation)& Triangulation() const { return myTriangulation; }
 
     const Handle(Graphic3d_ArrayOfTriangles)& Array() const { return myArray; }
 
   private:
 
     void addTriangle (const Standard_Integer theIndex, const gp_Pnt& theP1, const gp_Pnt& theP2, const gp_Pnt& theP3,
                       const gp_Dir& theNormal);
 
   protected:
 
     Handle(Poly_Triangulation) myTriangulation;
     Handle(Graphic3d_ArrayOfTriangles) myArray;
   };
 
   class Sector : public Quadric
   {
   public:
 
     Sector()
       : Quadric(),
       myRadius(0.0f)
     { }
 
     ~Sector() { }
 
     void Init(const Standard_ShortReal theRadius,
               const gp_Ax1&            thePosition,
               const gp_Dir&            theXDirection,
               const Standard_Integer   theSlicesNb = 5,
               const Standard_Integer   theStacksNb = 5);
 
   protected:
 
     gp_Ax1             myPosition;
     Standard_ShortReal myRadius;
   };
 
   //! The class describes on axis sub-object.
   //! It includes sub-objects itself:
   //! -rotator
   //! -translator
   //! -scaler
   class Axis
   {
   public:
 
     Axis (const gp_Ax1& theAxis              = gp_Ax1(),
           const Quantity_Color& theColor     = Quantity_Color(),
           const Standard_ShortReal theLength = 10.0f);
 
     void Compute (const Handle(PrsMgr_PresentationManager)& thePrsMgr,
                   const Handle(Prs3d_Presentation)& thePrs,
                   const Handle(Prs3d_ShadingAspect)& theAspect);
 
     const gp_Ax1& ReferenceAxis() const { return myReferenceAxis; }
 
     void SetPosition (const gp_Ax1& thePosition) { myPosition = thePosition; }
 
     const gp_Ax1& Position() const { return myPosition; }
 
     void SetTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers)
     {
       if (!myHighlightTranslator.IsNull())
       {
         myHighlightTranslator->SetTransformPersistence (theTrsfPers);
       }
 
       if (!myHighlightScaler.IsNull())
       {
         myHighlightScaler->SetTransformPersistence (theTrsfPers);
       }
 
       if (!myHighlightRotator.IsNull())
       {
         myHighlightRotator->SetTransformPersistence (theTrsfPers);
       }
 
       if (!myHighlightDragger.IsNull())
       {
         myHighlightDragger->SetTransformPersistence(theTrsfPers);
       }
     }
 
     void Transform (const Handle(TopLoc_Datum3D)& theTransformation)
     {
       if (!myHighlightTranslator.IsNull())
       {
         myHighlightTranslator->SetTransformation (theTransformation);
       }
 
       if (!myHighlightScaler.IsNull())
       {
         myHighlightScaler->SetTransformation (theTransformation);
       }
 
       if (!myHighlightRotator.IsNull())
       {
         myHighlightRotator->SetTransformation (theTransformation);
       }
 
       if (!myHighlightDragger.IsNull())
       {
         myHighlightDragger->SetTransformation(theTransformation);
       }
     }
 
     Standard_Boolean HasTranslation() const { return myHasTranslation; }
 
     Standard_Boolean HasRotation() const { return myHasRotation; }
 
     Standard_Boolean HasScaling() const { return myHasScaling; }
 
     Standard_Boolean HasDragging() const { return myHasDragging; }
 
     void SetTranslation (const Standard_Boolean theIsEnabled) { myHasTranslation = theIsEnabled; }
 
     void SetRotation (const Standard_Boolean theIsEnabled) { myHasRotation = theIsEnabled; }
 
     void SetScaling (const Standard_Boolean theIsEnabled) { myHasScaling = theIsEnabled; }
 
     void SetDragging(const Standard_Boolean theIsEnabled) { myHasDragging = theIsEnabled; }
 
     Quantity_Color Color() const { return myColor; }
 
     Standard_ShortReal AxisLength() const { return myLength; }
 
     Standard_ShortReal AxisRadius() const { return myAxisRadius; }
 
     void SetAxisRadius (const Standard_ShortReal theValue) { myAxisRadius = theValue; }
 
     const Handle(Prs3d_Presentation)& TranslatorHighlightPrs() const { return myHighlightTranslator; }
 
     const Handle(Prs3d_Presentation)& RotatorHighlightPrs() const { return myHighlightRotator; }
 
     const Handle(Prs3d_Presentation)& ScalerHighlightPrs() const { return myHighlightScaler; }
 
     const Handle(Prs3d_Presentation)& DraggerHighlightPrs() const { return myHighlightDragger; }
 
     const Handle(Graphic3d_Group)& TranslatorGroup() const { return myTranslatorGroup; }
 
     const Handle(Graphic3d_Group)& RotatorGroup() const { return myRotatorGroup; }
 
     const Handle(Graphic3d_Group)& ScalerGroup() const { return myScalerGroup; }
 
     const Handle(Graphic3d_Group)& DraggerGroup() const { return myDraggerGroup; }
 
     const Handle(Graphic3d_ArrayOfTriangles)& TriangleArray() const { return myTriangleArray; }
 
     void SetIndent (const Standard_ShortReal theValue) { myIndent = theValue; }
 
     Standard_ShortReal Size() const { return myLength + myBoxSize + myDiskThickness + myIndent * 2.0f; }
 
     gp_Pnt ScalerCenter (const gp_Pnt& theLocation) const { return theLocation.XYZ() + myPosition.Direction().XYZ() * (myLength + myIndent + myBoxSize * 0.5f); }
 
     void SetSize (const Standard_ShortReal theValue)
     {
       if (myIndent > theValue * 0.1f)
       {
         myLength = theValue * 0.7f;
         myBoxSize = theValue * 0.15f;
         myDiskThickness = theValue * 0.05f;
         myIndent = theValue * 0.05f;
       }
       else // use pre-set value of predent
       {
         Standard_ShortReal aLength = theValue - 2 * myIndent;
         myLength = aLength * 0.8f;
         myBoxSize = aLength * 0.15f;
         myDiskThickness = aLength * 0.05f;
       }
       myInnerRadius = myIndent * 2 + myBoxSize + myLength;
       myAxisRadius = myBoxSize / 4.0f;
     }
 
     Standard_Integer FacettesNumber() const { return myFacettesNumber; }
 
   public:
 
     const gp_Pnt& TranslatorTipPosition() const { return myArrowTipPos; }
     const Sector& DraggerSector() const { return mySector; }
     const Disk& RotatorDisk() const { return myCircle; }
     float RotatorDiskRadius() const { return myCircleRadius; }
     const Cube& ScalerCube() const { return myCube; }
     const gp_Pnt& ScalerCubePosition() const { return myCubePos; }
 
   protected:
 
     gp_Ax1 myReferenceAxis; //!< Returns reference axis assignment.
     gp_Ax1 myPosition; //!< Position of the axis including local transformation.
     Quantity_Color myColor;
 
     Standard_Boolean myHasTranslation;
     Standard_ShortReal myLength; //!< Length of translation axis.
     Standard_ShortReal myAxisRadius;
 
     Standard_Boolean myHasScaling;
     Standard_ShortReal myBoxSize; //!< Size of scaling cube.
 
     Standard_Boolean myHasRotation;
     Standard_ShortReal myInnerRadius; //!< Radius of rotation circle.
     Standard_ShortReal myDiskThickness;
     Standard_ShortReal myIndent; //!< Gap between visual part of the manipulator.
 
     Standard_Boolean myHasDragging;
 
   protected:
 
     Standard_Integer myFacettesNumber;
 
     gp_Pnt   myArrowTipPos;
     Sector   mySector;
     Disk     myCircle;
     float    myCircleRadius;
     Cube     myCube;
     gp_Pnt   myCubePos;
 
     Handle(Graphic3d_Group) myTranslatorGroup;
     Handle(Graphic3d_Group) myScalerGroup;
     Handle(Graphic3d_Group) myRotatorGroup;
     Handle(Graphic3d_Group) myDraggerGroup;
 
     Handle(Prs3d_Presentation) myHighlightTranslator;
     Handle(Prs3d_Presentation) myHighlightScaler;
     Handle(Prs3d_Presentation) myHighlightRotator;
     Handle(Prs3d_Presentation) myHighlightDragger;
 
     Handle(Graphic3d_ArrayOfTriangles) myTriangleArray;
 
   };
 
 protected:
 
   Axis myAxes[3]; //!< Tree axes of the manipulator.
   Sphere myCenter; //!< Visual part displaying the center sphere of the manipulator.
   gp_Ax2 myPosition; //!< Position of the manipulator object. it displays its location and position of its axes.
 
   Standard_Integer myCurrentIndex; //!< Index of active axis.
   AIS_ManipulatorMode myCurrentMode; //!< Name of active manipulation mode.
 
   Standard_Boolean myIsActivationOnDetection; //!< Manual activation of modes (not on parts selection).
   Standard_Boolean myIsZoomPersistentMode; //!< Zoom persistence mode activation.
   BehaviorOnTransform myBehaviorOnTransform; //!< Behavior settings applied on manipulator when transforming an object.
 
 protected: //! @name Fields for interactive transformation. Fields only for internal needs. They do not have public interface.
 
   NCollection_Sequence<gp_Trsf> myStartTrsfs; //!< Owning object transformation for start. It is used internally.
   Standard_Boolean myHasStartedTransformation; //!< Shows if transformation is processed (sequential calls of Transform()).
   gp_Ax2 myStartPosition; //! Start position of manipulator.
   gp_Pnt myStartPick; //! 3d point corresponding to start mouse pick.
   Standard_Real myPrevState; //! Previous value of angle during rotation.
 
   //! Aspect used to color current detected part and current selected part.
   Handle(Prs3d_ShadingAspect) myHighlightAspect;
 
   //! Aspect used to color sector part when it's selected.
   Handle(Prs3d_ShadingAspect) myDraggerHighlight;
 public:
 
   DEFINE_STANDARD_RTTIEXT(AIS_Manipulator, AIS_InteractiveObject)
 };
 #endif // _AIS_Manipulator_HeaderFile

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