// Created on: 1996-12-18
// Created by: Robert COUBLANC
// Copyright (c) 1996-1999 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_InteractiveContext_HeaderFile
#define _AIS_InteractiveContext_HeaderFile

#include <AIS_InteractiveObject.hxx>
#include <AIS_GlobalStatus.hxx>
#include <NCollection_DataMap.hxx>
#include <AIS_DisplayMode.hxx>
#include <AIS_DisplayStatus.hxx>
#include <AIS_KindOfInteractive.hxx>
#include <NCollection_List.hxx>
#include <AIS_Selection.hxx>
#include <AIS_SelectionModesConcurrency.hxx>
#include <AIS_SelectionScheme.hxx>
#include <AIS_StatusOfDetection.hxx>
#include <AIS_StatusOfPick.hxx>
#include <AIS_TypeOfIso.hxx>
#include <Aspect_TypeOfFacingModel.hxx>
#include <NCollection_Vec2.hxx>
#include <Standard_TypeDef.hxx>
#include <Prs3d_Drawer.hxx>
#include <Prs3d_TypeOfHighlight.hxx>
#include <PrsMgr_PresentationManager.hxx>
#include <SelectMgr_AndOrFilter.hxx>
#include <SelectMgr_IndexedMapOfOwner.hxx>
#include <SelectMgr_Filter.hxx>
#include <SelectMgr_PickingStrategy.hxx>
#include <SelectMgr_SelectionManager.hxx>
#include <StdSelect_ViewerSelector3d.hxx>
#include <TCollection_AsciiString.hxx>
#include <gp_Pnt2d.hxx>
#include <NCollection_Array1.hxx>
#include <Standard_Integer.hxx>
#include <NCollection_Sequence.hxx>
#include <Quantity_Color.hxx>

class V3d_Viewer;
class V3d_View;
class TopLoc_Location;
class TCollection_ExtendedString;
class Prs3d_LineAspect;
class Prs3d_BasicAspect;
class TopoDS_Shape;
class SelectMgr_Filter;

//! The Interactive Context allows you to manage graphic behavior and selection of Interactive
//! Objects in one or more viewers. Class methods make this highly transparent. It is essential to
//! remember that an Interactive Object which is already known by the Interactive Context must be
//! modified using Context methods. You can only directly call the methods available for an
//! Interactive Object if it has not been loaded into an Interactive Context.
//!
//! Each selectable object must specify the selection mode that is
//! responsible for selection of object as a whole (global selection mode).
//! Interactive context itself supports decomposed object selection with selection filters support.
//! By default, global selection mode is equal to 0, but it might be redefined if needed.
class AIS_InteractiveContext : public Standard_Transient
{
  DEFINE_STANDARD_RTTIEXT(AIS_InteractiveContext, Standard_Transient)
public: //! @name object display management
  //! Constructs the interactive context object defined by the principal viewer MainViewer.
  Standard_EXPORT AIS_InteractiveContext(const occ::handle<V3d_Viewer>& MainViewer);

  //! Destructor.
  Standard_EXPORT ~AIS_InteractiveContext() override;

  //! Returns the display status of the entity anIobj.
  //! This will be one of the following:
  //! - AIS_DS_Displayed displayed in main viewer
  //! - AIS_DS_Erased    hidden in main viewer
  //! - AIS_DS_Temporary temporarily displayed
  //! - AIS_DS_None      nowhere displayed.
  Standard_EXPORT PrsMgr_DisplayStatus
    DisplayStatus(const occ::handle<AIS_InteractiveObject>& anIobj) const;

  //! Returns the status of the Interactive Context for the view of the Interactive Object.
  Standard_EXPORT void Status(const occ::handle<AIS_InteractiveObject>& anObj,
                              TCollection_ExtendedString&               astatus) const;

  //! Returns true if Object is displayed in the interactive context.
  Standard_EXPORT bool IsDisplayed(const occ::handle<AIS_InteractiveObject>& anIobj) const;

  Standard_EXPORT bool IsDisplayed(const occ::handle<AIS_InteractiveObject>& aniobj,
                                   const int                                 aMode) const;

  //! Enable or disable automatic activation of default selection mode while displaying the object.
  void SetAutoActivateSelection(const bool theIsAuto) { myIsAutoActivateSelMode = theIsAuto; }

  //! Manages displaying the new object should also automatically activate default selection mode;
  //! TRUE by default.
  bool GetAutoActivateSelection() const { return myIsAutoActivateSelMode; }

  //! Displays the object in this Context using default Display Mode.
  //! This will be the object's default display mode, if there is one. Otherwise, it will be the
  //! context mode. The Interactive Object's default selection mode is activated if
  //! GetAutoActivateSelection() is TRUE. In general, this is 0.
  Standard_EXPORT void Display(const occ::handle<AIS_InteractiveObject>& theIObj,
                               const bool                                theToUpdateViewer);

  //! Sets status, display mode and selection mode for specified Object
  //! If theSelectionMode equals -1, theIObj will not be activated: it will be displayed but will
  //! not be selectable.
  Standard_EXPORT void Display(
    const occ::handle<AIS_InteractiveObject>& theIObj,
    const int                                 theDispMode,
    const int                                 theSelectionMode,
    const bool                                theToUpdateViewer,
    const PrsMgr_DisplayStatus                theDispStatus = PrsMgr_DisplayStatus_None);

  //! Allows you to load the Interactive Object with a given selection mode,
  //! and/or with the desired decomposition option, whether the object is visualized or not.
  //! The loaded objects will be selectable but displayable in highlighting only when detected by
  //! the Selector.
  Standard_EXPORT void Load(const occ::handle<AIS_InteractiveObject>& theObj,
                            const int                                 theSelectionMode = -1);

  //! Hides the object. The object's presentations are simply flagged as invisible and therefore
  //! excluded from redrawing. To show hidden objects, use Display().
  Standard_EXPORT void Erase(const occ::handle<AIS_InteractiveObject>& theIObj,
                             const bool                                theToUpdateViewer);

  //! Hides all objects. The object's presentations are simply flagged as invisible and therefore
  //! excluded from redrawing. To show all hidden objects, use DisplayAll().
  Standard_EXPORT void EraseAll(const bool theToUpdateViewer);

  //! Displays all hidden objects.
  Standard_EXPORT void DisplayAll(const bool theToUpdateViewer);

  //! Hides selected objects. The object's presentations are simply flagged as invisible and
  //! therefore excluded from redrawing. To show hidden objects, use Display().
  Standard_EXPORT void EraseSelected(const bool theToUpdateViewer);

  //! Displays current objects.
  Standard_EXPORT void DisplaySelected(const bool theToUpdateViewer);

  //! Empties the graphic presentation of the mode indexed by aMode.
  //! Warning! Removes theIObj. theIObj is still active if it was previously activated.
  void ClearPrs(const occ::handle<AIS_InteractiveObject>& theIObj,
                const int                                 theMode,
                const bool                                theToUpdateViewer)
  {
    ClearGlobalPrs(theIObj, theMode, theToUpdateViewer);
  }

  //! Removes Object from every viewer.
  Standard_EXPORT void Remove(const occ::handle<AIS_InteractiveObject>& theIObj,
                              const bool                                theToUpdateViewer);

  //! Removes all the objects from Context.
  Standard_EXPORT void RemoveAll(const bool theToUpdateViewer);

  //! Recomputes the seen parts presentation of the Object.
  //! If theAllModes equals true, all presentations are present in the object even if unseen.
  Standard_EXPORT void Redisplay(const occ::handle<AIS_InteractiveObject>& theIObj,
                                 const bool                                theToUpdateViewer,
                                 const bool                                theAllModes = false);

  //! Recomputes the Prs/Selection of displayed objects of a given type and a given signature.
  //! if signature = -1  doesn't take signature criterion.
  Standard_EXPORT void Redisplay(const AIS_KindOfInteractive theTypeOfObject,
                                 const int                   theSignature,
                                 const bool                  theToUpdateViewer);

  //! Recomputes the displayed presentations, flags the others.
  //! Doesn't update presentations.
  Standard_EXPORT void RecomputePrsOnly(const occ::handle<AIS_InteractiveObject>& theIObj,
                                        const bool                                theToUpdateViewer,
                                        const bool theAllModes = false);

  //! Recomputes the active selections, flags the others.
  //! Doesn't update presentations.
  Standard_EXPORT void RecomputeSelectionOnly(const occ::handle<AIS_InteractiveObject>& anIObj);

  //! Updates displayed interactive object by checking and recomputing its flagged as "to be
  //! recomputed" presentation and selection structures. This method does not force any
  //! recomputation on its own. The method recomputes selections even if they are loaded without
  //! activation in particular selector.
  Standard_EXPORT void Update(const occ::handle<AIS_InteractiveObject>& theIObj,
                              const bool                                theUpdateViewer);

public: //! @name highlighting management
  //! Returns default highlight style settings (could be overridden by PrsMgr_PresentableObject).
  //!
  //! Tip: although highlighting style is defined by Prs3d_Drawer,
  //! only a small set of properties derived from it's base class Graphic3d_PresentationAttributes
  //! will be actually used in most cases.
  //!
  //! Default highlight style for all types is Aspect_TOHM_COLOR. Other defaults:
  //!  - Prs3d_TypeOfHighlight_Dynamic
  //!    * Color: Quantity_NOC_CYAN1;
  //!    * Layer: Graphic3d_ZLayerId_Top,
  //!             object highlighting is drawn on top of main scene within Immediate Layers,
  //!             so that V3d_View::RedrawImmediate() will be enough to see update;
  //!  - Prs3d_TypeOfHighlight_LocalDynamic
  //!    * Color: Quantity_NOC_CYAN1;
  //!    * Layer: Graphic3d_ZLayerId_Topmost,
  //!             object parts highlighting is drawn on top of main scene within Immediate Layers
  //!             with depth cleared (even overlapped geometry will be revealed);
  //!  - Prs3d_TypeOfHighlight_Selected
  //!    * Color: Quantity_NOC_GRAY80;
  //!    * Layer: Graphic3d_ZLayerId_UNKNOWN,
  //!             object highlighting is drawn on top of main scene within the same layer
  //!             as object itself (e.g. Graphic3d_ZLayerId_Default by default) and increased
  //!             priority.
  //!
  //! @param[in] theStyleType highlight style to modify
  //! @return drawer associated to specified highlight type
  //!
  //! @sa MoveTo() using Prs3d_TypeOfHighlight_Dynamic and Prs3d_TypeOfHighlight_LocalDynamic types
  //! @sa SelectDetected() using Prs3d_TypeOfHighlight_Selected and
  //! Prs3d_TypeOfHighlight_LocalSelected types
  //! @sa PrsMgr_PresentableObject::DynamicHilightAttributes() overriding
  //! Prs3d_TypeOfHighlight_Dynamic and Prs3d_TypeOfHighlight_LocalDynamic defaults on object level
  //! @sa PrsMgr_PresentableObject::HilightAttributes() overriding Prs3d_TypeOfHighlight_Selected
  //! and Prs3d_TypeOfHighlight_LocalSelected defaults on object level
  const occ::handle<Prs3d_Drawer>& HighlightStyle(const Prs3d_TypeOfHighlight theStyleType) const
  {
    return myStyles[theStyleType];
  }

  //! Setup highlight style settings.
  //! Tip: it is better modifying existing style returned by method HighlightStyle()
  //! instead of creating a new Prs3d_Drawer to avoid unexpected results due misconfiguration.
  //!
  //! If a new highlight style is created, its presentation Zlayer should be checked,
  //! otherwise highlighting might not work as expected.
  void SetHighlightStyle(const Prs3d_TypeOfHighlight      theStyleType,
                         const occ::handle<Prs3d_Drawer>& theStyle)
  {
    myStyles[theStyleType] = theStyle;
    if (theStyleType == Prs3d_TypeOfHighlight_None)
    {
      myDefaultDrawer = theStyle;
    }
  }

  //! Returns current dynamic highlight style settings corresponding to
  //! Prs3d_TypeOfHighlight_Dynamic. This is just a short-cut to
  //! HighlightStyle(Prs3d_TypeOfHighlight_Dynamic).
  const occ::handle<Prs3d_Drawer>& HighlightStyle() const
  {
    return myStyles[Prs3d_TypeOfHighlight_Dynamic];
  }

  //! Setup the style of dynamic highlighting corresponding to Prs3d_TypeOfHighlight_Selected.
  //! This is just a short-cut to SetHighlightStyle(Prs3d_TypeOfHighlight_Dynamic,theStyle).
  void SetHighlightStyle(const occ::handle<Prs3d_Drawer>& theStyle)
  {
    myStyles[Prs3d_TypeOfHighlight_Dynamic] = theStyle;
  }

  //! Returns current selection style settings corresponding to Prs3d_TypeOfHighlight_Selected.
  //! This is just a short-cut to HighlightStyle(Prs3d_TypeOfHighlight_Selected).
  const occ::handle<Prs3d_Drawer>& SelectionStyle() const
  {
    return myStyles[Prs3d_TypeOfHighlight_Selected];
  }

  //! Setup the style of selection highlighting.
  //! This is just a short-cut to SetHighlightStyle(Prs3d_TypeOfHighlight_Selected,theStyle).
  void SetSelectionStyle(const occ::handle<Prs3d_Drawer>& theStyle)
  {
    myStyles[Prs3d_TypeOfHighlight_Selected] = theStyle;
  }

  //! Returns highlight style of the object if it is marked as highlighted via global status
  //! @param[in] theObj  the object to check
  Standard_EXPORT bool HighlightStyle(const occ::handle<AIS_InteractiveObject>& theObj,
                                      occ::handle<Prs3d_Drawer>&                theStyle) const;

  //! Returns highlight style of the owner if it is selected
  //! @param[in] theOwner  the owner to check
  Standard_EXPORT bool HighlightStyle(const occ::handle<SelectMgr_EntityOwner>& theOwner,
                                      occ::handle<Prs3d_Drawer>&                theStyle) const;

  //! Returns true if the object is marked as highlighted via its global status
  //! @param[in] theObj  the object to check
  Standard_EXPORT bool IsHilighted(const occ::handle<AIS_InteractiveObject>& theObj) const;

  //! Returns true if the owner is marked as selected
  //! @param[in] theOwner  the owner to check
  Standard_EXPORT bool IsHilighted(const occ::handle<SelectMgr_EntityOwner>& theOwner) const;

  //! Changes the color of all the lines of the object in view.
  Standard_EXPORT void HilightWithColor(const occ::handle<AIS_InteractiveObject>& theObj,
                                        const occ::handle<Prs3d_Drawer>&          theStyle,
                                        const bool theToUpdateViewer);

  //! Removes highlighting from the Object.
  Standard_EXPORT void Unhilight(const occ::handle<AIS_InteractiveObject>& theIObj,
                                 const bool                                theToUpdateViewer);

public: //! @name object presence management (View affinity, Layer, Priority)
  //! Returns the display priority of the Object.
  Standard_EXPORT Graphic3d_DisplayPriority
    DisplayPriority(const occ::handle<AIS_InteractiveObject>& theIObj) const;

  //! Sets the display priority of the seen parts presentation of the Object.
  Standard_EXPORT void SetDisplayPriority(const occ::handle<AIS_InteractiveObject>& theIObj,
                                          const Graphic3d_DisplayPriority           thePriority);

  Standard_DEPRECATED("Deprecated since OCCT7.7, Graphic3d_DisplayPriority should be passed "
                      "instead of integer number to SetDisplayPriority()")
  void SetDisplayPriority(const occ::handle<AIS_InteractiveObject>& theIObj, const int thePriority)
  {
    SetDisplayPriority(theIObj, (Graphic3d_DisplayPriority)thePriority);
  }

  //! Get Z layer id set for displayed interactive object.
  Standard_EXPORT Graphic3d_ZLayerId
    GetZLayer(const occ::handle<AIS_InteractiveObject>& theIObj) const;

  //! Set Z layer id for interactive object.
  //! The Z layers can be used to display temporarily presentations of some object in front of the
  //! other objects in the scene. The ids for Z layers are generated by V3d_Viewer.
  Standard_EXPORT void SetZLayer(const occ::handle<AIS_InteractiveObject>& theIObj,
                                 const Graphic3d_ZLayerId                  theLayerId);

  //! Setup object visibility in specified view.
  //! Has no effect if object is not displayed in this context.
  Standard_EXPORT void SetViewAffinity(const occ::handle<AIS_InteractiveObject>& theIObj,
                                       const occ::handle<V3d_View>&              theView,
                                       const bool                                theIsVisible);

public: //! @name Display Mode management
  //! Returns the Display Mode setting to be used by default.
  int DisplayMode() const { return myDefaultDrawer->DisplayMode(); }

  //! Sets the display mode of seen Interactive Objects (which have no overridden Display Mode).
  Standard_EXPORT void SetDisplayMode(const int theMode, const bool theToUpdateViewer);

  //! Sets the display mode of seen Interactive Objects.
  //! theMode provides the display mode index of the entity theIObj.
  Standard_EXPORT void SetDisplayMode(const occ::handle<AIS_InteractiveObject>& theIObj,
                                      const int                                 theMode,
                                      const bool                                theToUpdateViewer);

  //! Unsets the display mode of seen Interactive Objects.
  Standard_EXPORT void UnsetDisplayMode(const occ::handle<AIS_InteractiveObject>& theIObj,
                                        const bool theToUpdateViewer);

public: //! @name object local transformation management
  //! Puts the location on the initial graphic representation and the selection for the Object.
  Standard_EXPORT void SetLocation(const occ::handle<AIS_InteractiveObject>& theObject,
                                   const TopLoc_Location&                    theLocation);

  //! Puts the Object back into its initial position.
  Standard_EXPORT void ResetLocation(const occ::handle<AIS_InteractiveObject>& theObject);

  //! Returns true if the Object has a location.
  Standard_EXPORT bool HasLocation(const occ::handle<AIS_InteractiveObject>& theObject) const;

  //! Returns the location of the Object.
  Standard_EXPORT TopLoc_Location
    Location(const occ::handle<AIS_InteractiveObject>& theObject) const;

  //! Sets transform persistence.
  Standard_EXPORT void SetTransformPersistence(
    const occ::handle<AIS_InteractiveObject>&   theObject,
    const occ::handle<Graphic3d_TransformPers>& theTrsfPers);

public: //! @name mouse picking logic (detection and dynamic highlighting of entities under cursor)
  //! Setup pixel tolerance for MoveTo() operation.
  //! @sa MoveTo().
  Standard_EXPORT void SetPixelTolerance(const int thePrecision = 2);

  //! Returns the pixel tolerance, default is 2.
  //! Pixel Tolerance extends sensitivity within MoveTo() operation (picking by point)
  //! and can be adjusted by application based on user input precision (e.g. screen pixel density,
  //! input device precision, etc.).
  Standard_EXPORT int PixelTolerance() const;

  //! Allows to manage sensitivity of a particular selection of interactive object theObject
  //! and changes previous sensitivity value of all sensitive entities in selection with theMode
  //! to the given theNewSensitivity.
  Standard_EXPORT void SetSelectionSensitivity(const occ::handle<AIS_InteractiveObject>& theObject,
                                               const int                                 theMode,
                                               const int theNewSensitivity);

  //! Returns last active View (argument of MoveTo()/Select() methods).
  Standard_EXPORT occ::handle<V3d_View> LastActiveView() const;

  //! Relays mouse position in pixels theXPix and theYPix to the interactive context selectors.
  //! This is done by the view theView passing this position to the main viewer and updating it.
  //! If theToRedrawOnUpdate is set to false, callee should call RedrawImmediate() to highlight
  //! detected object.
  //! @sa PickingStrategy()
  //! @sa HighlightStyle() defining default dynamic highlight styles of detected owners
  //!                      (Prs3d_TypeOfHighlight_Dynamic and Prs3d_TypeOfHighlight_LocalDynamic)
  //! @sa PrsMgr_PresentableObject::DynamicHilightAttributes() defining per-object dynamic highlight
  //! style of detected owners (overrides defaults)
  Standard_EXPORT AIS_StatusOfDetection MoveTo(const int                    theXPix,
                                               const int                    theYPix,
                                               const occ::handle<V3d_View>& theView,
                                               const bool                   theToRedrawOnUpdate);

  //! Relays axis theAxis to the interactive context selectors.
  //! This is done by the view theView passing this axis to the main viewer and updating it.
  //! If theToRedrawOnUpdate is set to false, callee should call RedrawImmediate() to highlight
  //! detected object.
  //! @sa PickingStrategy()
  Standard_EXPORT AIS_StatusOfDetection MoveTo(const gp_Ax1&                theAxis,
                                               const occ::handle<V3d_View>& theView,
                                               const bool                   theToRedrawOnUpdate);

  //! Clears the list of entities detected by MoveTo() and resets dynamic highlighting.
  //! @param theToRedrawImmediate if TRUE, the main Viewer will be redrawn on update
  //! @return TRUE if viewer needs to be updated (e.g. there were actually dynamically highlighted
  //! entities)
  Standard_EXPORT bool ClearDetected(bool theToRedrawImmediate = false);

  //! Returns true if there is a mouse-detected entity in context.
  //! @sa DetectedOwner(), HasNextDetected(), HilightPreviousDetected(), HilightNextDetected().
  bool HasDetected() const { return !myLastPicked.IsNull(); }

  //! Returns the owner of the detected sensitive primitive which is currently dynamically
  //! highlighted. WARNING! This method is irrelevant to
  //! InitDetected()/MoreDetected()/NextDetected().
  //! @sa HasDetected(), HasNextDetected(), HilightPreviousDetected(), HilightNextDetected().
  const occ::handle<SelectMgr_EntityOwner>& DetectedOwner() const { return myLastPicked; }

  //! Returns the interactive objects last detected in context.
  //! In general this is just a wrapper for
  //! occ::down_cast<AIS_InteractiveObject>(DetectedOwner()->Selectable()).
  //! @sa DetectedOwner()
  occ::handle<AIS_InteractiveObject> DetectedInteractive() const
  {
    return occ::down_cast<AIS_InteractiveObject>(myLastPicked->Selectable());
  }

  //! Returns true if there is a detected shape in local context.
  //! @sa HasDetected(), DetectedShape()
  Standard_DEPRECATED(
    "Local Context is deprecated - local selection should be used without Local Context")
  Standard_EXPORT bool HasDetectedShape() const;

  //! Returns the shape detected in local context.
  //! @sa DetectedOwner()
  Standard_DEPRECATED(
    "Local Context is deprecated - local selection should be used without Local Context")
  Standard_EXPORT const TopoDS_Shape& DetectedShape() const;

  //! returns True if other entities were detected in the last mouse detection
  //! @sa HilightPreviousDetected(), HilightNextDetected().
  bool HasNextDetected() const
  {
    return !myDetectedSeq.IsEmpty() && myCurHighlighted <= myDetectedSeq.Upper();
  }

  //! If more than 1 object is detected by the selector, only the "best" owner is hilighted at the
  //! mouse position. This Method allows the user to hilight one after another the other detected
  //! entities. If The method select is called, the selected entity will be the hilighted one!
  //! WARNING: Loop Method. When all the detected entities have been hilighted, the next call will
  //! hilight the first one again.
  //! @return the Rank of hilighted entity
  //! @sa HasNextDetected(), HilightPreviousDetected().
  Standard_EXPORT int HilightNextDetected(const occ::handle<V3d_View>& theView,
                                          const bool                   theToRedrawImmediate = true);

  //! Same as previous methods in reverse direction.
  //! @sa HasNextDetected(), HilightNextDetected().
  Standard_EXPORT int HilightPreviousDetected(const occ::handle<V3d_View>& theView,
                                              const bool theToRedrawImmediate = true);

public: //! @name iteration through detected entities
  //! Initialization for iteration through mouse-detected objects in
  //! interactive context or in local context if it is opened.
  //! @sa DetectedCurrentOwner(), MoreDetected(), NextDetected().
  void InitDetected()
  {
    if (!myDetectedSeq.IsEmpty())
    {
      myCurDetected = myDetectedSeq.Lower();
    }
  }

  //! Return TRUE if there is more mouse-detected objects after the current one
  //! during iteration through mouse-detected interactive objects.
  //! @sa DetectedCurrentOwner(), InitDetected(), NextDetected().
  bool MoreDetected() const
  {
    return myCurDetected >= myDetectedSeq.Lower() && myCurDetected <= myDetectedSeq.Upper();
  }

  //! Gets next current object during iteration through mouse-detected interactive objects.
  //! @sa DetectedCurrentOwner(), InitDetected(), MoreDetected().
  void NextDetected() { ++myCurDetected; }

  //! Returns the owner from detected list pointed by current iterator position.
  //! WARNING! This method is irrelevant to DetectedOwner() which returns last picked Owner
  //! regardless of iterator position!
  //! @sa InitDetected(), MoreDetected(), NextDetected().
  Standard_EXPORT occ::handle<SelectMgr_EntityOwner> DetectedCurrentOwner() const;

public: //! @name Selection management
  //! Adds object in the selection.
  Standard_EXPORT AIS_StatusOfPick AddSelect(const occ::handle<SelectMgr_EntityOwner>& theObject);

  //! Adds object in the selection.
  AIS_StatusOfPick AddSelect(const occ::handle<AIS_InteractiveObject>& theObject)
  {
    return AddSelect(theObject->GlobalSelOwner());
  }

  //! Selects objects within the bounding rectangle.
  //! Viewer should be explicitly redrawn after selection.
  //! @param[in] thePntMin  rectangle lower point (in pixels)
  //! @param[in] thePntMax  rectangle upper point (in pixels)
  //! @param[in] theView    active view where rectangle is defined
  //! @param[in] theSelScheme  selection scheme
  //! @return picking status
  //! @sa StdSelect_ViewerSelector3d::AllowOverlapDetection()
  Standard_EXPORT AIS_StatusOfPick
    SelectRectangle(const NCollection_Vec2<int>& thePntMin,
                    const NCollection_Vec2<int>& thePntMax,
                    const occ::handle<V3d_View>& theView,
                    const AIS_SelectionScheme    theSelScheme = AIS_SelectionScheme_Replace);

  //! Select everything found in the polygon defined by bounding polyline.
  //! Viewer should be explicitly redrawn after selection.
  //! @param[in] thePolyline   polyline defining polygon bounds (in pixels)
  //! @param[in] theView       active view where polyline is defined
  //! @param[in] theSelScheme  selection scheme
  //! @return picking status
  Standard_EXPORT AIS_StatusOfPick
    SelectPolygon(const NCollection_Array1<gp_Pnt2d>& thePolyline,
                  const occ::handle<V3d_View>&        theView,
                  const AIS_SelectionScheme           theSelScheme = AIS_SelectionScheme_Replace);

  //! Selects the topmost object picked by the point in the view,
  //! Viewer should be explicitly redrawn after selection.
  //! @param[in] thePnt   point pixel coordinates within the view
  //! @param[in] theView  active view where point is defined
  //! @param[in] theSelScheme  selection scheme
  //! @return picking status
  Standard_EXPORT AIS_StatusOfPick
    SelectPoint(const NCollection_Vec2<int>& thePnt,
                const occ::handle<V3d_View>& theView,
                const AIS_SelectionScheme    theSelScheme = AIS_SelectionScheme_Replace);

  //! Select and hilights the previous detected via AIS_InteractiveContext::MoveTo() method;
  //! unhilights the previous picked.
  //! Viewer should be explicitly redrawn after selection.
  //! @param[in] theSelScheme  selection scheme
  //! @return picking status
  //!
  //! @sa HighlightStyle() defining default highlight styles of selected owners
  //! (Prs3d_TypeOfHighlight_Selected and Prs3d_TypeOfHighlight_LocalSelected)
  //! @sa PrsMgr_PresentableObject::HilightAttributes() defining per-object highlight style of
  //! selected owners (overrides defaults)
  //! For all selection schemes, allowing to select an object,
  //! HandleMouseClick is available
  Standard_EXPORT AIS_StatusOfPick
    SelectDetected(const AIS_SelectionScheme theSelScheme = AIS_SelectionScheme_Replace);

  //! Returns bounding box of selected objects.
  Standard_EXPORT Bnd_Box BoundingBoxOfSelection(const occ::handle<V3d_View>& theView) const;

  Standard_DEPRECATED("BoundingBoxOfSelection() should be called with View argument")
  Bnd_Box BoundingBoxOfSelection() const { return BoundingBoxOfSelection(occ::handle<V3d_View>()); }

  //! Sets list of owner selected/deselected using specified selection scheme.
  //! @param theOwners owners to change selection state
  //! @param theSelScheme selection scheme
  //! @return picking status
  Standard_EXPORT AIS_StatusOfPick
    Select(const NCollection_Array1<occ::handle<SelectMgr_EntityOwner>>& theOwners,
           const AIS_SelectionScheme                                     theSelScheme);

  //! Fits the view correspondingly to the bounds of selected objects.
  //! Infinite objects are ignored if infinite state of AIS_InteractiveObject is set to true.
  Standard_EXPORT void FitSelected(const occ::handle<V3d_View>& theView,
                                   const double                 theMargin,
                                   const bool                   theToUpdate);

  //! Fits the view correspondingly to the bounds of selected objects.
  //! Infinite objects are ignored if infinite state of AIS_InteractiveObject is set to true.
  Standard_EXPORT void FitSelected(const occ::handle<V3d_View>& theView);

  //! Return value specified whether selected object must be hilighted when mouse cursor is moved
  //! above it
  //! @sa MoveTo()
  bool ToHilightSelected() const { return myToHilightSelected; }

  //! Specify whether selected object must be hilighted when mouse cursor is moved above it (in
  //! MoveTo method). By default this value is false and selected object is not hilighted in this
  //! case.
  //! @sa MoveTo()
  void SetToHilightSelected(const bool toHilight) { myToHilightSelected = toHilight; }

  //! Returns true if the automatic highlight mode is active; TRUE by default.
  //! @sa MoveTo(), Select(), HilightWithColor(), Unhilight()
  bool AutomaticHilight() const { return myAutoHilight; }

  //! Sets the highlighting status of detected and selected entities.
  //! This function allows you to disconnect the automatic mode.
  //!
  //! MoveTo() will fill the list of detected entities
  //! and Select() will set selected state to detected objects regardless of this flag,
  //! but with disabled AutomaticHiligh() their highlighting state will be left unaffected,
  //! so that application will be able performing custom highlighting in a different way, if needed.
  //!
  //! This API should be distinguished from SelectMgr_SelectableObject::SetAutoHilight()
  //! that is used to implement custom highlighting logic for a specific interactive object class.
  //!
  //! @sa MoveTo(), Select(), HilightWithColor(), Unhilight()
  void SetAutomaticHilight(bool theStatus) { myAutoHilight = theStatus; }

  //! Unhighlights previously selected owners and marks them as not selected.
  //! Marks owner given as selected and highlights it.
  //! Performs selection filters check.
  Standard_EXPORT void SetSelected(const occ::handle<SelectMgr_EntityOwner>& theOwners,
                                   const bool                                theToUpdateViewer);

  //! Puts the interactive object aniObj in the list of selected objects.
  //! Performs selection filters check.
  Standard_EXPORT void SetSelected(const occ::handle<AIS_InteractiveObject>& theObject,
                                   const bool                                theToUpdateViewer);

  //! Allows to highlight or unhighlight the owner given depending on its selection status
  Standard_EXPORT void AddOrRemoveSelected(const occ::handle<AIS_InteractiveObject>& theObject,
                                           const bool theToUpdateViewer);

  //! Updates Selected state of specified owner without calling HilightSelected().
  //! Has no effect if Selected state is not changed, and redirects to AddOrRemoveSelected()
  //! otherwise.
  //! @param theOwner owner object to set selected state
  //! @param theIsSelected new selected state
  //! @return TRUE if Selected state has been changed
  Standard_EXPORT bool SetSelectedState(const occ::handle<SelectMgr_EntityOwner>& theOwner,
                                        const bool                                theIsSelected);

  //! Highlights selected objects.
  Standard_EXPORT void HilightSelected(const bool theToUpdateViewer);

  //! Removes highlighting from selected objects.
  Standard_EXPORT void UnhilightSelected(const bool theToUpdateViewer);

  //! Updates the list of selected objects:
  //! i.e. highlights the newly selected ones and unhighlights previously selected objects.
  //! @sa HilightSelected().
  void UpdateSelected(bool theToUpdateViewer) { HilightSelected(theToUpdateViewer); }

  //! Empties previous selected objects in order to get the selected objects detected by the
  //! selector using UpdateSelected.
  Standard_EXPORT void ClearSelected(const bool theToUpdateViewer);

  //! Allows to highlight or unhighlight the owner given depending on its selection status
  Standard_EXPORT void AddOrRemoveSelected(const occ::handle<SelectMgr_EntityOwner>& theOwner,
                                           const bool theToUpdateViewer);

  //! Returns true is the owner given is selected
  bool IsSelected(const occ::handle<SelectMgr_EntityOwner>& theOwner) const
  {
    return !theOwner.IsNull() && theOwner->IsSelected();
  }

  //! Returns true is the object given is selected
  Standard_EXPORT bool IsSelected(const occ::handle<AIS_InteractiveObject>& theObj) const;

  //! Returns the first selected object in the list of current selected.
  Standard_EXPORT occ::handle<AIS_InteractiveObject> FirstSelectedObject() const;

  //! Count a number of selected entities using InitSelected()+MoreSelected()+NextSelected()
  //! iterator.
  //! @sa SelectedOwner(), InitSelected(), MoreSelected(), NextSelected().
  int NbSelected() { return mySelection->Extent(); }

  //! Initializes a scan of the selected objects.
  //! @sa SelectedOwner(), MoreSelected(), NextSelected().
  void InitSelected() { mySelection->Init(); }

  //! Returns true if there is another object found by the scan of the list of selected objects.
  //! @sa SelectedOwner(), InitSelected(), NextSelected().
  bool MoreSelected() const { return mySelection->More(); }

  //! Continues the scan to the next object in the list of selected objects.
  //! @sa SelectedOwner(), InitSelected(), MoreSelected().
  void NextSelected() { mySelection->Next(); }

  //! Returns the owner of the selected entity.
  //! @sa InitSelected(), MoreSelected(), NextSelected().
  occ::handle<SelectMgr_EntityOwner> SelectedOwner() const
  {
    return !mySelection->More() ? occ::handle<SelectMgr_EntityOwner>() : mySelection->Value();
  }

  //! Return Handle(AIS_InteractiveObject)::DownCast (SelectedOwner()->Selectable()).
  //! @sa SelectedOwner().
  occ::handle<AIS_InteractiveObject> SelectedInteractive() const
  {
    return !mySelection->More()
             ? occ::handle<AIS_InteractiveObject>()
             : occ::down_cast<AIS_InteractiveObject>(mySelection->Value()->Selectable());
  }

  //! Returns TRUE if the interactive context has a shape selected.
  //! @sa SelectedShape().
  Standard_EXPORT bool HasSelectedShape() const;

  //! Returns the selected shape.
  //! Basically it is just a shape returned stored by StdSelect_BRepOwner with graphic
  //! transformation being applied:
  //! @code
  //!   const occ::handle<StdSelect_BRepOwner> aBRepOwner = Handle(StdSelect_BRepOwner)::DownCast
  //!   (SelectedOwner()); TopoDS_Shape aSelShape    = aBRepOwner->Shape(); TopoDS_Shape
  //!   aLocatedShape = aSelShape.Located (aBRepOwner->Location() * aSelShape.Location());
  //! @endcode
  //! @sa SelectedOwner(), HasSelectedShape().
  Standard_EXPORT TopoDS_Shape SelectedShape() const;

  //! Returns SelectedInteractive()->HasOwner().
  //! @sa SelectedOwner().
  bool HasApplicative() const { return SelectedInteractive()->HasOwner(); }

  //! Returns SelectedInteractive()->GetOwner().
  //! @sa SelectedOwner().
  occ::handle<Standard_Transient> Applicative() const { return SelectedInteractive()->GetOwner(); }

public: //! @name immediate mode rendering
  Standard_DEPRECATED(
    "Deprecated method - Graphic3d_ZLayerId with IsImmediate flag should be used instead")
  Standard_EXPORT bool BeginImmediateDraw();

  Standard_DEPRECATED(
    "Deprecated method - Graphic3d_ZLayerId with IsImmediate flag should be used instead")
  Standard_EXPORT bool ImmediateAdd(const occ::handle<AIS_InteractiveObject>& theObj,
                                    const int                                 theMode = 0);

  Standard_DEPRECATED(
    "Deprecated method - Graphic3d_ZLayerId with IsImmediate flag should be used instead")
  Standard_EXPORT bool EndImmediateDraw(const occ::handle<V3d_View>& theView);

  Standard_DEPRECATED(
    "Deprecated method - Graphic3d_ZLayerId with IsImmediate flag should be used instead")
  Standard_EXPORT bool EndImmediateDraw();

  Standard_DEPRECATED(
    "Deprecated method - Graphic3d_ZLayerId with IsImmediate flag should be used instead")
  Standard_EXPORT bool IsImmediateModeOn() const;

  //! Redraws immediate structures in all views of the viewer given taking into account its
  //! visibility.
  void RedrawImmediate(const occ::handle<V3d_Viewer>& theViewer)
  {
    myMainPM->RedrawImmediate(theViewer);
  }

public: //! @name management of active Selection Modes
  //! Activates or deactivates the selection mode for specified object.
  //! Has no effect if selection mode was already active/deactivated.
  //! @param theObj         object to activate/deactivate selection mode
  //! @param theMode        selection mode to activate/deactivate;
  //!                       deactivation of -1 selection mode will effectively deactivate all
  //!                       selection modes; activation of -1 selection mode with
  //!                       AIS_SelectionModesConcurrency_Single will deactivate all selection
  //!                       modes, and will has no effect otherwise
  //! @param theToActivate  activation/deactivation flag
  //! @param theConcurrency specifies how to handle already activated selection modes;
  //!                       default value (AIS_SelectionModesConcurrency_Multiple) means active
  //!                       selection modes should be left as is,
  //!                       AIS_SelectionModesConcurrency_Single can be used if only one selection
  //!                       mode is expected to be active and
  //!                       AIS_SelectionModesConcurrency_GlobalOrLocal can be used if either
  //!                       AIS_InteractiveObject::GlobalSelectionMode() or any combination of Local
  //!                       selection modes is acceptable; this value is considered only if
  //!                       theToActivate set to TRUE
  //! @param theIsForce     when set to TRUE, the display status will be ignored while activating
  //! selection mode
  Standard_EXPORT void SetSelectionModeActive(
    const occ::handle<AIS_InteractiveObject>& theObj,
    const int                                 theMode,
    const bool                                theToActivate,
    const AIS_SelectionModesConcurrency theConcurrency = AIS_SelectionModesConcurrency_Multiple,
    const bool                          theIsForce     = false);

  //! Activates the selection mode aMode whose index is given, for the given interactive entity
  //! anIobj.
  void Activate(const occ::handle<AIS_InteractiveObject>& theObj,
                const int                                 theMode    = 0,
                const bool                                theIsForce = false)
  {
    SetSelectionModeActive(theObj,
                           theMode,
                           true,
                           AIS_SelectionModesConcurrency_GlobalOrLocal,
                           theIsForce);
  }

  //! Activates the given selection mode for the all displayed objects.
  Standard_EXPORT void Activate(const int theMode, const bool theIsForce = false);

  //! Deactivates all the activated selection modes of an object.
  void Deactivate(const occ::handle<AIS_InteractiveObject>& theObj)
  {
    SetSelectionModeActive(theObj, -1, false, AIS_SelectionModesConcurrency_Single);
  }

  //! Deactivates all the activated selection modes of the interactive object anIobj with a given
  //! selection mode aMode.
  void Deactivate(const occ::handle<AIS_InteractiveObject>& theObj, const int theMode)
  {
    SetSelectionModeActive(theObj, theMode, false);
  }

  //! Deactivates the given selection mode for all displayed objects.
  Standard_EXPORT void Deactivate(const int theMode);

  //! Deactivates all the activated selection mode at all displayed objects.
  Standard_EXPORT void Deactivate();

  //! Returns the list of activated selection modes.
  Standard_EXPORT void ActivatedModes(const occ::handle<AIS_InteractiveObject>& anIobj,
                                      NCollection_List<int>&                    theList) const;

  //! Returns a collection containing all entity owners created for the interactive object in
  //! specified selection mode (in all active modes if the Mode == -1)
  Standard_EXPORT void EntityOwners(
    occ::handle<NCollection_Shared<NCollection_IndexedMap<occ::handle<SelectMgr_EntityOwner>>>>&
                                              theOwners,
    const occ::handle<AIS_InteractiveObject>& theIObj,
    const int                                 theMode = -1) const;

public: //! @name Selection Filters management
  //! @return the context selection filter type.
  SelectMgr_FilterType FilterType() const { return myFilters->FilterType(); }

  //! Sets the context selection filter type.
  //! SelectMgr_TypeFilter_OR selection filter is used by default.
  //! @param theFilterType the filter type.
  void SetFilterType(const SelectMgr_FilterType theFilterType)
  {
    myFilters->SetFilterType(theFilterType);
  }

  //! Returns the list of filters active in a local context.
  const NCollection_List<occ::handle<SelectMgr_Filter>>& Filters() const
  {
    return myFilters->StoredFilters();
  }

  //! @return the context selection global context filter.
  const occ::handle<SelectMgr_AndOrFilter>& GlobalFilter() const { return myFilters; }

  //! Allows you to add the filter.
  void AddFilter(const occ::handle<SelectMgr_Filter>& theFilter) { myFilters->Add(theFilter); }

  //! Removes a filter from context.
  void RemoveFilter(const occ::handle<SelectMgr_Filter>& theFilter)
  {
    myFilters->Remove(theFilter);
  }

  //! Remove all filters from context.
  void RemoveFilters() { myFilters->Clear(); }

  //! Return picking strategy; SelectMgr_PickingStrategy_FirstAcceptable by default.
  //! @sa MoveTo(), Filters()
  SelectMgr_PickingStrategy PickingStrategy() const { return myPickingStrategy; }

  //! Setup picking strategy - which entities detected by picking line will be accepted, considering
  //! Selection Filters. By default (SelectMgr_PickingStrategy_FirstAcceptable), Selection Filters
  //! reduce the list of entities so that the context accepts topmost in remaining.
  //!
  //! This means that entities behind non-selectable (by filters) parts can be picked by user.
  //! If this behavior is undesirable, and user wants that non-selectable (by filters) parts
  //! should remain an obstacle for picking, SelectMgr_PickingStrategy_OnlyTopmost can be set
  //! instead.
  //!
  //! Notice, that since Selection Manager operates only objects registered in it,
  //! SelectMgr_PickingStrategy_OnlyTopmost will NOT prevent picking entities behind
  //! visible by unregistered in Selection Manager presentations (e.g. deactivated).
  //! Hence, SelectMgr_PickingStrategy_OnlyTopmost changes behavior only with Selection Filters
  //! enabled.
  void SetPickingStrategy(const SelectMgr_PickingStrategy theStrategy)
  {
    myPickingStrategy = theStrategy;
  }

public: //! @name common properties
  //! Returns the default attribute manager.
  //! This contains all the color and line attributes which can be used by interactive objects which
  //! do not have their own attributes.
  const occ::handle<Prs3d_Drawer>& DefaultDrawer() const { return myDefaultDrawer; }

  //! Sets the default attribute manager; should be set at context creation time.
  //! Warning - this setter doesn't update links to the default drawer of already displayed objects!
  void SetDefaultDrawer(const occ::handle<Prs3d_Drawer>& theDrawer)
  {
    myDefaultDrawer                      = theDrawer;
    myStyles[Prs3d_TypeOfHighlight_None] = myDefaultDrawer;
  }

  //! Returns the current viewer.
  const occ::handle<V3d_Viewer>& CurrentViewer() const { return myMainVwr; }

  const occ::handle<SelectMgr_SelectionManager>& SelectionManager() const { return mgrSelector; }

  const occ::handle<PrsMgr_PresentationManager>& MainPrsMgr() const { return myMainPM; }

  const occ::handle<StdSelect_ViewerSelector3d>& MainSelector() const
  {
    return mgrSelector->Selector();
  }

  //! Updates the current viewer.
  Standard_EXPORT void UpdateCurrentViewer();

  //! Returns the list of displayed objects of a particular Type WhichKind and Signature
  //! WhichSignature. By Default, WhichSignature equals -1. This means that there is a check on type
  //! only.
  Standard_EXPORT void DisplayedObjects(
    NCollection_List<occ::handle<AIS_InteractiveObject>>& aListOfIO) const;

  //! gives the list of displayed objects of a particular Type and signature.
  //! by Default, <WhichSignature> = -1 means control only on <WhichKind>.
  Standard_EXPORT void DisplayedObjects(
    const AIS_KindOfInteractive                           theWhichKind,
    const int                                             theWhichSignature,
    NCollection_List<occ::handle<AIS_InteractiveObject>>& theListOfIO) const;

  //! Returns the list theListOfIO of erased objects (hidden objects) particular Type WhichKind and
  //! Signature WhichSignature. By Default, WhichSignature equals 1. This means that there is a
  //! check on type only.
  Standard_EXPORT void ErasedObjects(
    NCollection_List<occ::handle<AIS_InteractiveObject>>& theListOfIO) const;

  //! gives the list of erased objects (hidden objects)
  //! Type and signature by Default, <WhichSignature> = -1 means control only on <WhichKind>.
  Standard_EXPORT void ErasedObjects(
    const AIS_KindOfInteractive                           theWhichKind,
    const int                                             theWhichSignature,
    NCollection_List<occ::handle<AIS_InteractiveObject>>& theListOfIO) const;

  //! Returns the list theListOfIO of objects with indicated display status particular Type
  //! WhichKind and Signature WhichSignature. By Default, WhichSignature equals 1. This means that
  //! there is a check on type only.
  Standard_EXPORT void ObjectsByDisplayStatus(
    const PrsMgr_DisplayStatus                            theStatus,
    NCollection_List<occ::handle<AIS_InteractiveObject>>& theListOfIO) const;

  //! gives the list of objects with indicated display status
  //! Type and signature by Default, <WhichSignature> = -1 means control only on <WhichKind>.
  Standard_EXPORT void ObjectsByDisplayStatus(
    const AIS_KindOfInteractive                           WhichKind,
    const int                                             WhichSignature,
    const PrsMgr_DisplayStatus                            theStatus,
    NCollection_List<occ::handle<AIS_InteractiveObject>>& theListOfIO) const;

  //! fills <aListOfIO> with objects of a particular Type and Signature with no consideration of
  //! display status. by Default, <WhichSignature> = -1 means control only on <WhichKind>. if
  //! <WhichKind> = AIS_KindOfInteractive_None and <WhichSignature> = -1, all the objects are put
  //! into the list.
  Standard_EXPORT void ObjectsInside(
    NCollection_List<occ::handle<AIS_InteractiveObject>>& aListOfIO,
    const AIS_KindOfInteractive                           WhichKind = AIS_KindOfInteractive_None,
    const int                                             WhichSignature = -1) const;

  //! Create iterator through all objects registered in context.
  NCollection_DataMap<occ::handle<AIS_InteractiveObject>, occ::handle<AIS_GlobalStatus>>::Iterator
    ObjectIterator() const
  {
    return NCollection_DataMap<occ::handle<AIS_InteractiveObject>,
                               occ::handle<AIS_GlobalStatus>>::Iterator(myObjects);
  }

  //! Rebuilds 1st level of BVH selection forcibly
  Standard_EXPORT void RebuildSelectionStructs();

  //! Disconnects theObjToDisconnect from theAssembly and removes dependent selection structures
  Standard_EXPORT void Disconnect(
    const occ::handle<AIS_InteractiveObject>& theAssembly,
    const occ::handle<AIS_InteractiveObject>& theObjToDisconnect = nullptr);

  //! Query objects visible or hidden in specified view due to affinity mask.
  Standard_EXPORT void ObjectsForView(
    NCollection_List<occ::handle<AIS_InteractiveObject>>& theListOfIO,
    const occ::handle<V3d_View>&                          theView,
    const bool                                            theIsVisibleInView,
    const PrsMgr_DisplayStatus theStatus = PrsMgr_DisplayStatus_None) const;

  //! Return rotation gravity point.
  Standard_EXPORT virtual gp_Pnt GravityPoint(const occ::handle<V3d_View>& theView) const;

public: //! @name debug visualization
  //! Visualization of sensitives - for debugging purposes!
  Standard_EXPORT void DisplayActiveSensitive(const occ::handle<V3d_View>& aView);

  //! Clear visualization of sensitives.
  Standard_EXPORT void ClearActiveSensitive(const occ::handle<V3d_View>& aView);

  //! Visualization of sensitives - for debugging purposes!
  Standard_EXPORT void DisplayActiveSensitive(const occ::handle<AIS_InteractiveObject>& anObject,
                                              const occ::handle<V3d_View>&              aView);

public: //! @name common object display attributes
  //! Sets the graphic attributes of the interactive object, such as visualization mode, color, and
  //! material.
  Standard_EXPORT void SetLocalAttributes(const occ::handle<AIS_InteractiveObject>& theIObj,
                                          const occ::handle<Prs3d_Drawer>&          theDrawer,
                                          const bool theToUpdateViewer);

  //! Removes the settings for local attributes of the Object and returns to defaults.
  Standard_EXPORT void UnsetLocalAttributes(const occ::handle<AIS_InteractiveObject>& theIObj,
                                            const bool theToUpdateViewer);

  //! change the current facing model apply on polygons for SetColor(), SetTransparency(),
  //! SetMaterial() methods default facing model is Aspect_TOFM_TWO_SIDE. This mean that attributes
  //! is applying both on the front and back face.
  Standard_EXPORT void SetCurrentFacingModel(
    const occ::handle<AIS_InteractiveObject>& aniobj,
    const Aspect_TypeOfFacingModel            aModel = Aspect_TOFM_BOTH_SIDE);

  //! Returns true if a view of the Interactive Object has color.
  Standard_EXPORT bool HasColor(const occ::handle<AIS_InteractiveObject>& aniobj) const;

  //! Returns the color of the Object in the interactive context.
  Standard_EXPORT void Color(const occ::handle<AIS_InteractiveObject>& aniobj,
                             Quantity_Color&                           acolor) const;

  //! Sets the color of the selected entity.
  Standard_EXPORT void SetColor(const occ::handle<AIS_InteractiveObject>& theIObj,
                                const Quantity_Color&                     theColor,
                                const bool                                theToUpdateViewer);

  //! Removes the color selection for the selected entity.
  Standard_EXPORT void UnsetColor(const occ::handle<AIS_InteractiveObject>& theIObj,
                                  const bool                                theToUpdateViewer);

  //! Returns the width of the Interactive Object in the interactive context.
  Standard_EXPORT virtual double Width(const occ::handle<AIS_InteractiveObject>& aniobj) const;

  //! Sets the width of the Object.
  Standard_EXPORT virtual void SetWidth(const occ::handle<AIS_InteractiveObject>& theIObj,
                                        const double                              theValue,
                                        const bool theToUpdateViewer);

  //! Removes the width setting of the Object.
  Standard_EXPORT virtual void UnsetWidth(const occ::handle<AIS_InteractiveObject>& theIObj,
                                          const bool theToUpdateViewer);

  //! Provides the type of material setting for the view of the Object.
  Standard_EXPORT void SetMaterial(const occ::handle<AIS_InteractiveObject>& theIObj,
                                   const Graphic3d_MaterialAspect&           theMaterial,
                                   const bool                                theToUpdateViewer);

  //! Removes the type of material setting for viewing the Object.
  Standard_EXPORT void UnsetMaterial(const occ::handle<AIS_InteractiveObject>& theIObj,
                                     const bool                                theToUpdateViewer);

  //! Provides the transparency settings for viewing the Object.
  //! The transparency value aValue may be between 0.0, opaque, and 1.0, fully transparent.
  Standard_EXPORT void SetTransparency(const occ::handle<AIS_InteractiveObject>& theIObj,
                                       const double                              theValue,
                                       const bool                                theToUpdateViewer);

  //! Removes the transparency settings for viewing the Object.
  Standard_EXPORT void UnsetTransparency(const occ::handle<AIS_InteractiveObject>& theIObj,
                                         const bool theToUpdateViewer);

  //! Sets up polygon offsets for the given AIS_InteractiveObject.
  //! It simply calls AIS_InteractiveObject::SetPolygonOffsets().
  Standard_EXPORT void SetPolygonOffsets(const occ::handle<AIS_InteractiveObject>& theIObj,
                                         const int                                 theMode,
                                         const float                               theFactor,
                                         const float                               theUnits,
                                         const bool theToUpdateViewer);

  //! Simply calls AIS_InteractiveObject::HasPolygonOffsets().
  Standard_EXPORT bool HasPolygonOffsets(const occ::handle<AIS_InteractiveObject>& anObj) const;

  //! Retrieves current polygon offsets settings for Object.
  Standard_EXPORT void PolygonOffsets(const occ::handle<AIS_InteractiveObject>& anObj,
                                      int&                                      aMode,
                                      float&                                    aFactor,
                                      float&                                    aUnits) const;

public: //! @name trihedron display attributes
  //! Sets the size aSize of the trihedron.
  //! Is used to change the default value 100 mm for display of trihedra.
  //! Use of this function in one of your own interactive objects requires a call to the Compute
  //! function of the new class. This will recalculate the presentation for every trihedron
  //! displayed.
  Standard_EXPORT void SetTrihedronSize(const double theSize, const bool theToUpdateViewer);

  //! returns the current value of trihedron size.
  Standard_EXPORT double TrihedronSize() const;

public: //! @name plane display attributes
  //! Sets the plane size defined by the length in the X direction XSize and that in the Y direction
  //! YSize.
  Standard_EXPORT void SetPlaneSize(const double theSizeX,
                                    const double theSizeY,
                                    const bool   theToUpdateViewer);

  //! Sets the plane size aSize.
  Standard_EXPORT void SetPlaneSize(const double theSize, const bool theToUpdateViewer);

  //! Returns true if the length in the X direction XSize is the same as that in the Y direction
  //! YSize.
  Standard_EXPORT bool PlaneSize(double& XSize, double& YSize) const;

public: //! @name tessellation deviation properties for automatic triangulation
  //! Sets the deviation coefficient theCoefficient.
  //! Drawings of curves or patches are made with respect to a maximal chordal deviation.
  //! A Deviation coefficient is used in the shading display mode.
  //! The shape is seen decomposed into triangles.
  //! These are used to calculate reflection of light from the surface of the object.
  //! The triangles are formed from chords of the curves in the shape.
  //! The deviation coefficient theCoefficient gives the highest value of the angle with which a
  //! chord can deviate from a tangent to a curve. If this limit is reached, a new triangle is
  //! begun. This deviation is absolute and is set through the method: SetMaximalChordialDeviation.
  //! The default value is 0.001.
  //! In drawing shapes, however, you are allowed to ask for a relative deviation.
  //! This deviation will be: SizeOfObject * DeviationCoefficient.
  Standard_EXPORT void SetDeviationCoefficient(const occ::handle<AIS_InteractiveObject>& theIObj,
                                               const double theCoefficient,
                                               const bool   theToUpdateViewer);

  Standard_EXPORT void SetDeviationAngle(const occ::handle<AIS_InteractiveObject>& theIObj,
                                         const double                              theAngle,
                                         const bool theToUpdateViewer);

  //! Calls the AIS_Shape SetAngleAndDeviation to set both Angle and Deviation coefficients
  Standard_EXPORT void SetAngleAndDeviation(const occ::handle<AIS_InteractiveObject>& theIObj,
                                            const double                              theAngle,
                                            const bool theToUpdateViewer);

  //! Sets the deviation coefficient theCoefficient.
  //! Drawings of curves or patches are made with respect to a maximal chordal deviation.
  //! A Deviation coefficient is used in the shading display mode.
  //! The shape is seen decomposed into triangles.
  //! These are used to calculate reflection of light from the surface of the object.
  //! The triangles are formed from chords of the curves in the shape.
  //! The deviation coefficient theCoefficient gives the highest value of the angle with which a
  //! chord can deviate from a tangent to a curve. If this limit is reached, a new triangle is
  //! begun. This deviation is absolute and is set through the method: SetMaximalChordialDeviation.
  //! The default value is 0.001.
  //! In drawing shapes, however, you are allowed to ask for a relative deviation.
  //! This deviation will be: SizeOfObject * DeviationCoefficient.
  void SetDeviationCoefficient(const double theCoefficient)
  {
    myDefaultDrawer->SetDeviationCoefficient(theCoefficient);
  }

  //! Returns the deviation coefficient.
  //! Drawings of curves or patches are made with respect to a maximal chordal deviation.
  //! A Deviation coefficient is used in the shading display mode.
  //! The shape is seen decomposed into triangles.
  //! These are used to calculate reflection of light from the surface of the object.
  //! The triangles are formed from chords of the curves in the shape.
  //! The deviation coefficient gives the highest value of the angle with which a chord can deviate
  //! from a tangent to a curve. If this limit is reached, a new triangle is begun. This deviation
  //! is absolute and is set through Prs3d_Drawer::SetMaximalChordialDeviation. The default value is
  //! 0.001. In drawing shapes, however, you are allowed to ask for a relative deviation. This
  //! deviation will be: SizeOfObject * DeviationCoefficient.
  double DeviationCoefficient() const { return myDefaultDrawer->DeviationCoefficient(); }

  //! default 20 degrees
  void SetDeviationAngle(const double theAngle) { myDefaultDrawer->SetDeviationAngle(theAngle); }

  double DeviationAngle() const { return myDefaultDrawer->DeviationAngle(); }

public: //! @name HLR (Hidden Line Removal) display attributes
  //! Initializes hidden line aspect in the default drawing tool, or Drawer.
  //! The default values are:
  //! Color: Quantity_NOC_YELLOW
  //! Type of line: Aspect_TOL_DASH
  //! Width: 1.
  const occ::handle<Prs3d_LineAspect>& HiddenLineAspect() const
  {
    return myDefaultDrawer->HiddenLineAspect();
  }

  //! Sets the hidden line aspect anAspect.
  //! Aspect defines display attributes for hidden lines in HLR projections.
  void SetHiddenLineAspect(const occ::handle<Prs3d_LineAspect>& theAspect) const
  {
    myDefaultDrawer->SetHiddenLineAspect(theAspect);
  }

  //! returns true if the hidden lines are to be drawn.
  //! By default the hidden lines are not drawn.
  bool DrawHiddenLine() const { return myDefaultDrawer->DrawHiddenLine(); }

  void EnableDrawHiddenLine() const { myDefaultDrawer->EnableDrawHiddenLine(); }

  void DisableDrawHiddenLine() const { myDefaultDrawer->DisableDrawHiddenLine(); }

public: //! @name iso-line display attributes
  //! Sets the number of U and V isoparameters displayed.
  Standard_EXPORT void SetIsoNumber(const int NbIsos, const AIS_TypeOfIso WhichIsos = AIS_TOI_Both);

  //! Returns the number of U and V isoparameters displayed.
  Standard_EXPORT int IsoNumber(const AIS_TypeOfIso WhichIsos = AIS_TOI_Both);

  //! Returns True if drawing isoparameters on planes is enabled.
  void IsoOnPlane(const bool theToSwitchOn) { myDefaultDrawer->SetIsoOnPlane(theToSwitchOn); }

  //! Returns True if drawing isoparameters on planes is enabled.
  //! if <forUIsos> = False,
  bool IsoOnPlane() const { return myDefaultDrawer->IsoOnPlane(); }

  //! Enables or disables on-triangulation build for isolines for a particular object.
  //! In case if on-triangulation builder is disabled, default on-plane builder will compute
  //! isolines for the object given.
  Standard_EXPORT void IsoOnTriangulation(const bool                                theIsEnabled,
                                          const occ::handle<AIS_InteractiveObject>& theObject);

  //! Enables or disables on-triangulation build for isolines for default drawer.
  //! In case if on-triangulation builder is disabled, default on-plane builder will compute
  //! isolines for the object given.
  void IsoOnTriangulation(const bool theToSwitchOn)
  {
    myDefaultDrawer->SetIsoOnTriangulation(theToSwitchOn);
  }

  //! Returns true if drawing isolines on triangulation algorithm is enabled.
  bool IsoOnTriangulation() const { return myDefaultDrawer->IsoOnTriangulation(); }

  //! @name obsolete methods
public:
  Standard_DEPRECATED("Deprecated method Display() with obsolete argument "
                      "theToAllowDecomposition")
  void Display(const occ::handle<AIS_InteractiveObject>& theIObj,
               const int                                 theDispMode,
               const int                                 theSelectionMode,
               const bool                                theToUpdateViewer,
               const bool                                theToAllowDecomposition,
               const PrsMgr_DisplayStatus                theDispStatus = PrsMgr_DisplayStatus_None)
  {
    (void)theToAllowDecomposition;
    Display(theIObj, theDispMode, theSelectionMode, theToUpdateViewer, theDispStatus);
  }

  Standard_DEPRECATED("Deprecated method Load() with obsolete last argument "
                      "theToAllowDecomposition")
  void Load(const occ::handle<AIS_InteractiveObject>& theObj, int theSelectionMode, bool)
  {
    Load(theObj, theSelectionMode);
  }

  //! Updates the display in the viewer to take dynamic detection into account.
  //! On dynamic detection by the mouse cursor, sensitive primitives are highlighted.
  //! The highlight color of entities detected by mouse movement is white by default.
  Standard_DEPRECATED("Deprecated method Hilight()")
  void Hilight(const occ::handle<AIS_InteractiveObject>& theObj, const bool theIsToUpdateViewer)
  {
    return HilightWithColor(theObj, myStyles[Prs3d_TypeOfHighlight_Dynamic], theIsToUpdateViewer);
  }

  //! Sets the graphic basic aspect to the current presentation of ALL selected objects.
  Standard_DEPRECATED(
    "Deprecated method - presentation attributes should be assigned directly to object")
  Standard_EXPORT void SetSelectedAspect(const occ::handle<Prs3d_BasicAspect>& theAspect,
                                         const bool                            theToUpdateViewer);

  //! Selects everything found in the bounding rectangle defined by the pixel minima and maxima,
  //! XPMin, YPMin, XPMax, and YPMax in the view. The objects detected are passed to the main
  //! viewer, which is then updated.
  Standard_DEPRECATED("This method is deprecated - SelectRectangle() taking "
                      "AIS_SelectionScheme_Replace should be called instead")
  Standard_EXPORT AIS_StatusOfPick Select(const int                    theXPMin,
                                          const int                    theYPMin,
                                          const int                    theXPMax,
                                          const int                    theYPMax,
                                          const occ::handle<V3d_View>& theView,
                                          const bool                   theToUpdateViewer);

  //! polyline selection; clears the previous picked list
  Standard_DEPRECATED("This method is deprecated - SelectPolygon() taking "
                      "AIS_SelectionScheme_Replace should be called instead")
  Standard_EXPORT AIS_StatusOfPick Select(const NCollection_Array1<gp_Pnt2d>& thePolyline,
                                          const occ::handle<V3d_View>&        theView,
                                          const bool                          theToUpdateViewer);

  //! Stores and hilights the previous detected; Unhilights the previous picked.
  //! @sa MoveTo().
  Standard_DEPRECATED("This method is deprecated - SelectDetected() taking "
                      "AIS_SelectionScheme_Replace should be called instead")
  Standard_EXPORT AIS_StatusOfPick Select(const bool theToUpdateViewer);

  //! Adds the last detected to the list of previous picked.
  //! If the last detected was already declared as picked, removes it from the Picked List.
  //! @sa MoveTo().
  Standard_DEPRECATED("This method is deprecated - SelectDetected() taking AIS_SelectionScheme_XOR "
                      "should be called instead")
  Standard_EXPORT AIS_StatusOfPick ShiftSelect(const bool theToUpdateViewer);

  //! Adds the last detected to the list of previous picked.
  //! If the last detected was already declared as picked, removes it from the Picked List.
  Standard_DEPRECATED("This method is deprecated - SelectPolygon() taking AIS_SelectionScheme_XOR "
                      "should be called instead")
  Standard_EXPORT AIS_StatusOfPick ShiftSelect(const NCollection_Array1<gp_Pnt2d>& thePolyline,
                                               const occ::handle<V3d_View>&        theView,
                                               const bool theToUpdateViewer);

  //! Rectangle of selection; adds new detected entities into the picked list,
  //! removes the detected entities that were already stored.
  Standard_DEPRECATED("This method is deprecated - SelectRectangle() taking "
                      "AIS_SelectionScheme_XOR should be called instead")
  Standard_EXPORT AIS_StatusOfPick ShiftSelect(const int                    theXPMin,
                                               const int                    theYPMin,
                                               const int                    theXPMax,
                                               const int                    theYPMax,
                                               const occ::handle<V3d_View>& theView,
                                               const bool                   theToUpdateViewer);

public:
  //! Updates the view of the current object in open context.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void SetCurrentObject(const occ::handle<AIS_InteractiveObject>& theIObj,
                        const bool                                theToUpdateViewer)
  {
    SetSelected(theIObj, theToUpdateViewer);
  }

  //! Allows to add or remove the object given to the list of current and highlight/unhighlight it
  //! correspondingly. Is valid for global context only; for local context use method
  //! AddOrRemoveSelected. Since this method makes sense only for neutral point selection of a whole
  //! object, if 0 selection of the object is empty this method simply does nothing.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void AddOrRemoveCurrentObject(const occ::handle<AIS_InteractiveObject>& theObj,
                                const bool                                theIsToUpdateViewer)
  {
    AddOrRemoveSelected(theObj, theIsToUpdateViewer);
  }

  //! Updates the list of current objects, i.e. hilights new current objects, removes hilighting
  //! from former current objects. Objects selected when there is no open local context are called
  //! current objects; those selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void UpdateCurrent() { UpdateSelected(true); }

  //! Returns true if there is a non-null interactive object in Neutral Point.
  //! Objects selected when there is no open local context are called current objects;
  //! those selected in open local context, selected objects.
  Standard_DEPRECATED(
    "Local Context is deprecated - local selection should be used without Local Context")
  bool IsCurrent(const occ::handle<AIS_InteractiveObject>& theObject) const
  {
    return IsSelected(theObject);
  }

  //! Initializes a scan of the current selected objects in Neutral Point.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void InitCurrent() { InitSelected(); }

  //! Returns true if there is another object found by the scan of the list of current objects.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED(
    "Local Context is deprecated - local selection should be used without Local Context")
  bool MoreCurrent() const { return MoreSelected(); }

  //! Continues the scan to the next object in the list of current objects.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void NextCurrent() { NextSelected(); }

  //! Returns the current interactive object.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED(
    "Local Context is deprecated - local selection should be used without Local Context")
  occ::handle<AIS_InteractiveObject> Current() const { return SelectedInteractive(); }

  Standard_DEPRECATED(
    "Local Context is deprecated - local selection should be used without Local Context")
  int NbCurrents() { return NbSelected(); }

  //! Highlights current objects.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void HilightCurrents(const bool theToUpdateViewer) { HilightSelected(theToUpdateViewer); }

  //! Removes highlighting from current objects.
  //! Objects selected when there is no open local context are called current objects; those
  //! selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void UnhilightCurrents(const bool theToUpdateViewer) { UnhilightSelected(theToUpdateViewer); }

  //! Empties previous current objects in order to get the current objects detected by the selector
  //! using UpdateCurrent. Objects selected when there is no open local context are called current
  //! objects; those selected in open local context, selected objects.
  Standard_DEPRECATED("Local Context is deprecated - local selection should be used without Local "
                      "Context")
  void ClearCurrents(const bool theToUpdateViewer) { ClearSelected(theToUpdateViewer); }

  //! @return current mouse-detected shape or empty (null) shape, if current interactive object
  //! is not a shape (AIS_Shape) or there is no current mouse-detected interactive object at all.
  //! @sa DetectedCurrentOwner(), InitDetected(), MoreDetected(), NextDetected().
  Standard_DEPRECATED(
    "Local Context is deprecated - ::DetectedCurrentOwner() should be called instead")
  Standard_EXPORT const TopoDS_Shape& DetectedCurrentShape() const;

  //! @return current mouse-detected interactive object or null object, if there is no currently
  //! detected interactives
  //! @sa DetectedCurrentOwner(), InitDetected(), MoreDetected(), NextDetected().
  Standard_DEPRECATED(
    "Local Context is deprecated - ::DetectedCurrentOwner() should be called instead")
  Standard_EXPORT occ::handle<AIS_InteractiveObject> DetectedCurrentObject() const;

public: //! @name sub-intensity management (deprecated)
  //! Sub-intensity allows temporary highlighting of particular objects with specified color in a
  //! manner of selection highlight, but without actual selection (e.g., global status and owner's
  //! selection state will not be updated). The method returns the color of such highlighting. By
  //! default, it is Quantity_NOC_GRAY40.
  const Quantity_Color& SubIntensityColor() const
  {
    return myStyles[Prs3d_TypeOfHighlight_SubIntensity]->Color();
  }

  //! Sub-intensity allows temporary highlighting of particular objects with specified color in a
  //! manner of selection highlight, but without actual selection (e.g., global status and owner's
  //! selection state will not be updated). The method sets up the color for such highlighting. By
  //! default, this is Quantity_NOC_GRAY40.
  void SetSubIntensityColor(const Quantity_Color& theColor)
  {
    myStyles[Prs3d_TypeOfHighlight_SubIntensity]->SetColor(theColor);
  }

  //! Highlights, and removes highlights from, the displayed object which is displayed at Neutral
  //! Point with subintensity color. Available only for active local context. There is no effect if
  //! there is no local context. If a local context is open, the presentation of the Interactive
  //! Object activates the selection mode.
  Standard_EXPORT void SubIntensityOn(const occ::handle<AIS_InteractiveObject>& theIObj,
                                      const bool                                theToUpdateViewer);

  //! Removes the subintensity option for the entity.
  //! If a local context is open, the presentation of the Interactive Object activates the selection
  //! mode.
  Standard_EXPORT void SubIntensityOff(const occ::handle<AIS_InteractiveObject>& theIObj,
                                       const bool                                theToUpdateViewer);

  //! Returns selection instance
  const occ::handle<AIS_Selection>& Selection() const { return mySelection; }

  //! Sets selection instance to manipulate a container of selected owners
  //! @param theSelection an instance of the selection
  void SetSelection(const occ::handle<AIS_Selection>& theSelection) { mySelection = theSelection; }

  //! Dumps the content of me into the stream
  Standard_EXPORT virtual void DumpJson(Standard_OStream& theOStream, int theDepth = -1) const;

protected: //! @name internal methods
  Standard_EXPORT void GetDefModes(const occ::handle<AIS_InteractiveObject>& anIobj,
                                   int&                                      Dmode,
                                   int&                                      HiMod,
                                   int&                                      SelMode) const;

  Standard_EXPORT void EraseGlobal(const occ::handle<AIS_InteractiveObject>& theIObj,
                                   const bool                                theToUpdateViewer);

  Standard_EXPORT void ClearGlobal(const occ::handle<AIS_InteractiveObject>& theIObj,
                                   const bool                                theToUpdateViewer);

  Standard_EXPORT void ClearGlobalPrs(const occ::handle<AIS_InteractiveObject>& theObj,
                                      const int                                 theMode,
                                      const bool                                theToUpdateViewer);

  Standard_EXPORT void InitAttributes();

  //! Highlights detected objects.
  //! If theToRedrawOnUpdate is set to false, callee should call RedrawImmediate() to update view.
  Standard_EXPORT AIS_StatusOfDetection moveTo(const occ::handle<V3d_View>& theView,
                                               const bool                   theToRedrawOnUpdate);

  //! Returns True if the object is detected.
  Standard_EXPORT bool isDetected(const occ::handle<AIS_InteractiveObject>& theObject);

  //! Helper function to unhighlight all entity owners currently highlighted with seleciton color.
  Standard_EXPORT void unselectOwners(const occ::handle<AIS_InteractiveObject>& theObject);

  //! Helper function that highlights the owner given with <theStyle> without
  //! performing AutoHighlight checks, e.g. is used for dynamic highlight.
  Standard_EXPORT void highlightWithColor(const occ::handle<SelectMgr_EntityOwner>& theOwner,
                                          const occ::handle<V3d_Viewer>& theViewer = nullptr);

  //! Helper function that highlights the owner given with <theStyle> with check
  //! for AutoHighlight, e.g. is used for selection.
  Standard_EXPORT void highlightSelected(const occ::handle<SelectMgr_EntityOwner>& theOwner);

  //! Helper function that highlights the owners with check for AutoHighlight, e.g. is used for
  //! selection.
  //! @param[in] theOwners  list of owners to highlight
  //! @param[in] theStyle   highlight style to apply or NULL to apply selection style
  Standard_EXPORT void highlightOwners(
    const NCollection_List<occ::handle<SelectMgr_EntityOwner>>& theOwners,
    const occ::handle<Prs3d_Drawer>&                            theStyle);

  //! Helper function that highlights global owner of the object given with <theStyle> with check
  //! for AutoHighlight, e.g. is used for selection.
  //! If global owner is null, it simply highlights the whole object
  Standard_EXPORT void highlightGlobal(const occ::handle<AIS_InteractiveObject>& theObj,
                                       const occ::handle<Prs3d_Drawer>&          theStyle,
                                       const int                                 theDispMode);

  //! Helper function that unhighlights all owners that are stored in current AIS_Selection.
  //! The function updates global status and selection state of owner and interactive object.
  //! If the parameter <theIsToHilightSubIntensity> is set to true, interactive objects with
  //! sub-intensity switched on in AIS_GlobalStatus will be highlighted with context's sub-intensity
  //! color.
  Standard_EXPORT void unhighlightSelected(const bool theIsToHilightSubIntensity = false);

  //! Helper function that unhighlights the owners with check
  //! for AutoHighlight, e.g. is used for selection.
  Standard_EXPORT void unhighlightOwners(
    const NCollection_List<occ::handle<SelectMgr_EntityOwner>>& theOwners,
    const bool                                                  theIsToHilightSubIntensity = false);

  //! Helper function that unhighlights global selection owner of given interactive.
  //! The function does not perform any updates of global or owner status
  Standard_EXPORT void unhighlightGlobal(const occ::handle<AIS_InteractiveObject>& theObj);

  //! Helper function that turns on sub-intensity in global status and highlights
  //! given objects with sub-intensity color
  //! @param[in] theObject  the object. If NULL is given, than sub-intensity will be turned on for
  //! all inveractive objects of the context
  //! @param[in] theDispMode  display mode. If -1 is given, sub-intensity will be turned on for
  //! all display modes in global status's list of modes
  //! @param[in] theIsDisplayedOnly  is true if sub-intensity should be applied only to objects with
  //! status AIS_DS_Displayed
  Standard_EXPORT void turnOnSubintensity(
    const occ::handle<AIS_InteractiveObject>& theObject          = nullptr,
    const int                                 theDispMode        = -1,
    const bool                                theIsDisplayedOnly = true) const;

  //! Helper function that highlights the object with sub-intensity color without any checks
  //! @param[in] theObject  the object that will be highlighted
  //! @param[in] theMode  display mode
  Standard_EXPORT void highlightWithSubintensity(
    const occ::handle<AIS_InteractiveObject>& theObject,
    const int                                 theMode) const;

  //! Helper function that highlights the owner with sub-intensity color without any checks
  //! @param[in] theOwner  the owner that will be highlighted
  //! @param[in] theMode  display mode
  Standard_EXPORT void highlightWithSubintensity(const occ::handle<SelectMgr_EntityOwner>& theOwner,
                                                 const int theMode) const;

  //! Helper function that returns correct dynamic highlight style for the object:
  //! if custom style is defined via object's highlight drawer, it will be used. Otherwise,
  //! dynamic highlight style of interactive context will be returned.
  //! @param[in] theObj  the object to check
  const occ::handle<Prs3d_Drawer>& getHiStyle(
    const occ::handle<AIS_InteractiveObject>& theObj,
    const occ::handle<SelectMgr_EntityOwner>& theOwner) const
  {
    const occ::handle<Prs3d_Drawer>& aHiDrawer = theObj->DynamicHilightAttributes();
    if (!aHiDrawer.IsNull())
    {
      return aHiDrawer;
    }

    return myStyles[!theOwner.IsNull() && theOwner->ComesFromDecomposition()
                      ? Prs3d_TypeOfHighlight_LocalDynamic
                      : Prs3d_TypeOfHighlight_Dynamic];
  }

  //! Return TRUE if highlight style of owner requires full viewer redraw.
  Standard_EXPORT bool isSlowHiStyle(const occ::handle<SelectMgr_EntityOwner>& theOwner,
                                     const occ::handle<V3d_Viewer>&            theViewer) const;

  //! Helper function that returns correct selection style for the object:
  //! if custom style is defined via object's highlight drawer, it will be used. Otherwise,
  //! selection style of interactive context will be returned.
  //! @param[in] theObj  the object to check
  const occ::handle<Prs3d_Drawer>& getSelStyle(
    const occ::handle<AIS_InteractiveObject>& theObj,
    const occ::handle<SelectMgr_EntityOwner>& theOwner) const
  {
    const occ::handle<Prs3d_Drawer>& aHiDrawer = theObj->HilightAttributes();
    if (!aHiDrawer.IsNull())
    {
      return aHiDrawer;
    }

    return myStyles[!theOwner.IsNull() && theOwner->ComesFromDecomposition()
                      ? Prs3d_TypeOfHighlight_LocalSelected
                      : Prs3d_TypeOfHighlight_Selected];
  }

  //! Assign the context to the object or throw exception if object was already assigned to another
  //! context.
  Standard_EXPORT void setContextToObject(const occ::handle<AIS_InteractiveObject>& theObj);

  //! Return display mode for highlighting.
  int getHilightMode(const occ::handle<AIS_InteractiveObject>& theObj,
                     const occ::handle<Prs3d_Drawer>&          theStyle,
                     const int                                 theDispMode) const
  {
    if (!theStyle.IsNull() && theStyle->DisplayMode() != -1
        && theObj->AcceptDisplayMode(theStyle->DisplayMode()))
    {
      return theStyle->DisplayMode();
    }
    else if (theDispMode != -1)
    {
      return theDispMode;
    }
    else if (theObj->HasDisplayMode())
    {
      return theObj->DisplayMode();
    }
    return myDefaultDrawer->DisplayMode();
  }

  //! Removes dynamic highlight draw
  void clearDynamicHighlight() const
  {
    if (myLastPicked.IsNull())
      return;

    myLastPicked->Selectable()->ClearDynamicHighlight(myMainPM);
  }

  //! Bind/Unbind status to object and its children
  //! @param[in] theIObj the object to change status
  //! @param[in] theStatus status, if NULL, unbind object
  Standard_EXPORT void setObjectStatus(const occ::handle<AIS_InteractiveObject>& theIObj,
                                       const PrsMgr_DisplayStatus                theStatus,
                                       const int                                 theDispyMode,
                                       const int                                 theSelectionMode);

protected: //! @name internal fields
  NCollection_DataMap<occ::handle<AIS_InteractiveObject>, occ::handle<AIS_GlobalStatus>> myObjects;
  occ::handle<SelectMgr_SelectionManager> mgrSelector;
  occ::handle<PrsMgr_PresentationManager> myMainPM;
  occ::handle<V3d_Viewer>                 myMainVwr;
  V3d_View*                               myLastActiveView;
  occ::handle<SelectMgr_EntityOwner>      myLastPicked;
  bool                                    myToHilightSelected;
  occ::handle<AIS_Selection>              mySelection;
  occ::handle<SelectMgr_AndOrFilter>      myFilters; //!< context filter (the content active filters
                                                     //!  can be applied with AND or OR operation)
  occ::handle<Prs3d_Drawer> myDefaultDrawer;
  occ::handle<Prs3d_Drawer> myStyles[Prs3d_TypeOfHighlight_NB];
  NCollection_Sequence<int> myDetectedSeq;
  int                       myCurDetected;
  int                       myCurHighlighted;
  SelectMgr_PickingStrategy myPickingStrategy; //!< picking strategy to be applied within MoveTo()
  bool                      myAutoHilight;
  bool                      myIsAutoActivateSelMode;
};

#endif // _AIS_InteractiveContext_HeaderFile
