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 // Created on: 1991-09-06
 // Created by: NW,JPB,CAL
 // Copyright (c) 1991-1999 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 _Graphic3d_Group_HeaderFile
 #define _Graphic3d_Group_HeaderFile
 
 #include <Graphic3d_BndBox4f.hxx>
 #include <Graphic3d_AspectFillArea3d.hxx>
 #include <Graphic3d_MapOfAspectsToAspects.hxx>
 #include <Standard_CString.hxx>
 #include <Graphic3d_Vertex.hxx>
 #include <Graphic3d_TextPath.hxx>
 #include <Graphic3d_HorizontalTextAlignment.hxx>
 #include <Graphic3d_VerticalTextAlignment.hxx>
 #include <Graphic3d_TypeOfPrimitiveArray.hxx>
 #include <Graphic3d_IndexBuffer.hxx>
 #include <Graphic3d_Buffer.hxx>
 #include <Graphic3d_BoundBuffer.hxx>
 #include <gp_Ax2.hxx>
 #include <TCollection_ExtendedString.hxx>
 
 class Graphic3d_Structure;
 class Graphic3d_ArrayOfPrimitives;
 class Graphic3d_Text;
 class Graphic3d_TransformPers;
 
 //! This class allows the definition of groups
 //! of primitives inside of graphic objects (presentations).
 //! A group contains the primitives and attributes
 //! for which the range is limited to this group.
 //! The primitives of a group can be globally suppressed.
 //!
 //! There are two main group usage models:
 //!
 //! 1) Non-modifiable, or unbounded, group ('black box').
 //! Developers can repeat a sequence of
 //! SetPrimitivesAspect() with AddPrimitiveArray() methods arbitrary number of times
 //! to define arbitrary number of primitive "blocks" each having individual apect values.
 //! Any modification of such a group is forbidden, as aspects and primitives are mixed
 //! in memory without any high-level logical structure, and any modification is very likely to result
 //! in corruption of the group internal data.
 //! It is necessary to recreate such a group as a whole when some attribute should be changed.
 //! (for example, in terms of AIS it is necessary to re-Compute() the whole presentation each time).
 //! 2) Bounded group. Developers should specify the necessary group aspects with help of
 //! SetGroupPrimitivesAspect() and then add primitives to the group.
 //! Such a group have simplified organization in memory (a single block of attributes
 //! followed by a block of primitives) and therefore it can be modified, if it is necessary to
 //! change parameters of some aspect that has already been set, using methods:
 //! IsGroupPrimitivesAspectSet() to detect which aspect was set for primitives;
 //! GroupPrimitivesAspect() to read current aspect values
 //! and SetGroupPrimitivesAspect() to set new values.
 //!
 //! Developers are strongly recommended to take all the above into account when filling Graphic3d_Group
 //! with aspects and primitives and choose the group usage model beforehand out of application needs.
 //! Note that some Graphic3d_Group class virtual methods contain only base implementation
 //! that is extended by the descendant class in OpenGl package.
 class Graphic3d_Group : public Standard_Transient
 {
   friend class Graphic3d_Structure;
   DEFINE_STANDARD_RTTIEXT(Graphic3d_Group,Standard_Transient)
 
 public:
 
   //! Suppress all primitives and attributes of <me>.
   //! To clear group without update in Graphic3d_StructureManager
   //! pass Standard_False as <theUpdateStructureMgr>. This
   //! used on context and viewer destruction, when the pointer
   //! to structure manager in Graphic3d_Structure could be
   //! already released (pointers are used here to avoid handle
   //! cross-reference);
   Standard_EXPORT virtual void Clear (const Standard_Boolean theUpdateStructureMgr = Standard_True);
 
   //! Suppress the group <me> in the structure.
   Standard_EXPORT virtual ~Graphic3d_Group();
 
   //! Suppress the group <me> in the structure.
   //! Warning: No more graphic operations in <me> after this call.
   //! Modifies the current modelling transform persistence (pan, zoom or rotate)
   //! Get the current modelling transform persistence (pan, zoom or rotate)
   Standard_EXPORT void Remove();
 
 public:
 
   //! Return fill area aspect.
   virtual Handle(Graphic3d_Aspects) Aspects() const = 0;
 
   //! Modifies the context for all the face primitives of the group.
   virtual void SetGroupPrimitivesAspect (const Handle(Graphic3d_Aspects)& theAspect) = 0;
 
   //! Modifies the current context of the group to give another aspect for all the primitives created after this call in the group.
   virtual void SetPrimitivesAspect (const Handle(Graphic3d_Aspects)& theAspect) = 0;
 
   //! Update presentation aspects after their modification.
   virtual void SynchronizeAspects() = 0;
 
   //! Replace aspects specified in the replacement map.
   virtual void ReplaceAspects (const Graphic3d_MapOfAspectsToAspects& theMap) = 0;
 
   //! Adds a text for display
   Standard_EXPORT virtual void AddText (const Handle(Graphic3d_Text)& theTextParams,
                                         const Standard_Boolean theToEvalMinMax = Standard_True);
 
   //! Adds an array of primitives for display
   Standard_EXPORT virtual void AddPrimitiveArray (const Graphic3d_TypeOfPrimitiveArray theType,
                                                   const Handle(Graphic3d_IndexBuffer)& theIndices,
                                                   const Handle(Graphic3d_Buffer)& theAttribs,
                                                   const Handle(Graphic3d_BoundBuffer)& theBounds,
                                                   const Standard_Boolean theToEvalMinMax = Standard_True);
 
   //! Adds an array of primitives for display
   Standard_EXPORT void AddPrimitiveArray (const Handle(Graphic3d_ArrayOfPrimitives)& thePrim, const Standard_Boolean theToEvalMinMax = Standard_True);
 
 public:
 
   //! sets the stencil test to theIsEnabled state;
   Standard_EXPORT virtual void SetStencilTestOptions (const Standard_Boolean theIsEnabled) = 0;
 
   //! sets the flipping to theIsEnabled state.
   Standard_EXPORT virtual void SetFlippingOptions (const Standard_Boolean theIsEnabled, const gp_Ax2& theRefPlane) = 0;
 
   //! Return transformation persistence.
   const Handle(Graphic3d_TransformPers)& TransformPersistence() const { return myTrsfPers; }
 
   //! Set transformation persistence.
   Standard_EXPORT virtual void SetTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers);
 
   //! Returns Standard_True if the group <me> is deleted.
   //! <me> is deleted after the call Remove (me) or the
   //! associated structure is deleted.
   Standard_EXPORT Standard_Boolean IsDeleted() const;
 
   //! Returns Standard_True if the group <me> is empty.
   Standard_EXPORT Standard_Boolean IsEmpty() const;
 
   //! Returns the coordinates of the boundary box of the group.
   Standard_EXPORT void MinMaxValues (Standard_Real& theXMin, Standard_Real& theYMin, Standard_Real& theZMin,
                                      Standard_Real& theXMax, Standard_Real& theYMax, Standard_Real& theZMax) const;
 
   //! Sets the coordinates of the boundary box of the group.
   Standard_EXPORT void SetMinMaxValues (const Standard_Real theXMin, const Standard_Real theYMin, const Standard_Real theZMin,
                                         const Standard_Real theXMax, const Standard_Real theYMax, const Standard_Real theZMax);
 
   //! Returns boundary box of the group <me> without transformation applied,
   const Graphic3d_BndBox4f& BoundingBox() const { return myBounds; }
 
   //! Returns non-const boundary box of the group <me> without transformation applied,
   Graphic3d_BndBox4f& ChangeBoundingBox() { return myBounds; }
 
   //! Returns the structure containing the group <me>.
   Standard_EXPORT Handle(Graphic3d_Structure) Structure() const;
 
   //! Changes property shown that primitive arrays within this group form closed volume (do no contain open shells).
   void SetClosed (const bool theIsClosed) { myIsClosed = theIsClosed; }
 
   //! Return true if primitive arrays within this graphic group form closed volume (do no contain open shells).
   bool IsClosed() const { return myIsClosed; }
 
 //! @name obsolete methods
 public:
 
   Standard_DEPRECATED("Deprecated method Marker(), pass Graphic3d_ArrayOfPoints to AddPrimitiveArray() instead")
   Standard_EXPORT void Marker (const Graphic3d_Vertex& thePoint, const Standard_Boolean theToEvalMinMax = Standard_True);
 
   //! Creates the string <AText> at position <APoint>.
   //! The 3D point of attachment is projected. The text is
   //! written in the plane of projection.
   //! The attributes are given with respect to the plane of
   //! projection.
   //! AHeight : Height of text.
   //! (Relative to the Normalized Projection
   //! Coordinates (NPC) Space).
   //! AAngle  : Orientation of the text
   //! (with respect to the horizontal).
   Standard_DEPRECATED("Deprecated method Text() with obsolete arguments, use AddText() instead of it")
   Standard_EXPORT virtual void Text (const Standard_CString AText,
                                      const Graphic3d_Vertex& APoint,
                                      const Standard_Real AHeight,
                                      const Standard_Real AAngle,
                                      const Graphic3d_TextPath ATp,
                                      const Graphic3d_HorizontalTextAlignment AHta,
                                      const Graphic3d_VerticalTextAlignment AVta,
                                      const Standard_Boolean EvalMinMax = Standard_True);
 
   //! Creates the string <AText> at position <APoint>.
   //! The 3D point of attachment is projected. The text is
   //! written in the plane of projection.
   //! The attributes are given with respect to the plane of
   //! projection.
   //! AHeight : Height of text.
   //! (Relative to the Normalized Projection
   //! Coordinates (NPC) Space).
   //! The other attributes have the following default values:
   //! AAngle  : PI / 2.
   //! ATp     : TP_RIGHT
   //! AHta    : HTA_LEFT
   //! AVta    : VTA_BOTTOM
   Standard_DEPRECATED("Deprecated method Text() with obsolete arguments, use AddText() instead of it")
   Standard_EXPORT void Text (const Standard_CString AText,
                              const Graphic3d_Vertex& APoint,
                              const Standard_Real AHeight,
                              const Standard_Boolean EvalMinMax = Standard_True);
 
   //! Creates the string <AText> at position <APoint>.
   //! The 3D point of attachment is projected. The text is
   //! written in the plane of projection.
   //! The attributes are given with respect to the plane of
   //! projection.
   //! AHeight : Height of text.
   //! (Relative to the Normalized Projection
   //! Coordinates (NPC) Space).
   //! AAngle  : Orientation of the text
   //! (with respect to the horizontal).
   Standard_DEPRECATED("Deprecated method Text() with obsolete arguments, use AddText() instead of it")
   Standard_EXPORT void Text (const TCollection_ExtendedString& AText,
                              const Graphic3d_Vertex& APoint,
                              const Standard_Real AHeight,
                              const Standard_Real AAngle,
                              const Graphic3d_TextPath ATp,
                              const Graphic3d_HorizontalTextAlignment AHta,
                              const Graphic3d_VerticalTextAlignment AVta,
                              const Standard_Boolean EvalMinMax = Standard_True);
 
   //! Creates the string <AText> at position <APoint>.
   //! The 3D point of attachment is projected. The text is
   //! written in the plane of projection.
   //! The attributes are given with respect to the plane of
   //! projection.
   //! AHeight : Height of text.
   //! (Relative to the Normalized Projection
   //! Coordinates (NPC) Space).
   //! The other attributes have the following default values:
   //! AAngle  : PI / 2.
   //! ATp     : TP_RIGHT
   //! AHta    : HTA_LEFT
   //! AVta    : VTA_BOTTOM
   Standard_DEPRECATED("Deprecated method Text() with obsolete arguments, use AddText() instead of it")
   Standard_EXPORT void Text (const TCollection_ExtendedString& AText,
                              const Graphic3d_Vertex& APoint,
                              const Standard_Real AHeight,
                              const Standard_Boolean EvalMinMax = Standard_True);
 
   //! Creates the string <theText> at orientation <theOrientation> in 3D space.
   Standard_DEPRECATED("Deprecated method Text() with obsolete arguments, use AddText() instead of it")
   Standard_EXPORT virtual void Text (const Standard_CString                  theTextUtf,
                                      const gp_Ax2&                           theOrientation,
                                      const Standard_Real                     theHeight,
                                      const Standard_Real                     theAngle,
                                      const Graphic3d_TextPath                theTp,
                                      const Graphic3d_HorizontalTextAlignment theHTA,
                                      const Graphic3d_VerticalTextAlignment   theVTA,
                                      const Standard_Boolean                  theToEvalMinMax = Standard_True,
                                      const Standard_Boolean                  theHasOwnAnchor = Standard_True);
 
   //! Creates the string <theText> at orientation <theOrientation> in 3D space.
   Standard_DEPRECATED("Deprecated method Text() with obsolete arguments, use AddText() instead of it")
   Standard_EXPORT virtual void Text (const TCollection_ExtendedString&       theText,
                                      const gp_Ax2&                           theOrientation,
                                      const Standard_Real                     theHeight,
                                      const Standard_Real                     theAngle,
                                      const Graphic3d_TextPath                theTp,
                                      const Graphic3d_HorizontalTextAlignment theHTA,
                                      const Graphic3d_VerticalTextAlignment   theVTA,
                                      const Standard_Boolean                  theToEvalMinMax = Standard_True,
                                      const Standard_Boolean                  theHasOwnAnchor = Standard_True);
 
 
   //! Dumps the content of me into the stream
   Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const;
 
 protected:
 
   //! Creates a group in the structure <AStructure>.
   Standard_EXPORT Graphic3d_Group(const Handle(Graphic3d_Structure)& theStructure);
 
   //! Calls the Update method of the StructureManager which
   //! contains the associated Structure of the Group <me>.
   Standard_EXPORT void Update() const;
 
 protected:
 
   Handle(Graphic3d_TransformPers) myTrsfPers; //!< current transform persistence
   Graphic3d_Structure* myStructure;     //!< pointer to the parent structure
   Graphic3d_BndBox4f   myBounds;        //!< bounding box
   bool                 myIsClosed;      //!< flag indicating closed volume
 
 };
 
 DEFINE_STANDARD_HANDLE(Graphic3d_Group, Standard_Transient)
 
 #endif // _Graphic3d_Group_HeaderFile

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