-- Created on: 1998-04-16
-- Created by: Robert COUBLANC
-- Copyright (c) 1998-1999 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.

class SensitiveGroup from Select3D inherits SensitiveEntity from Select3D

	---Purpose: A framework to define selection of a sensitive group
    	--          by a sensitive entity which is a set of 3D sensitive entities.
    	--          Remark: 2 modes are possible for rectangle selection
    	--          the group is considered selected
    	--          1) when all the entities inside are selected in the rectangle
    	--          2) only one entity inside is selected by the rectangle
    	--          By default the "Match All entities" mode is set.

uses
    Pnt                      from gp,
    Projector                from Select3D,
    Lin                      from gp,
    EntityOwner              from SelectBasics,
    SensitiveEntity          from Select3D,
    ListOfSensitive          from Select3D,
    ListOfBox2d              from SelectBasics,
    PickArgs                 from SelectBasics,
    Array1OfPnt2d            from TColgp,
    Box2d                    from Bnd,
    Location                 from TopLoc


is

    Create (OwnerId      : EntityOwner from SelectBasics;
    	    MatchAll     : Boolean from Standard = Standard_True)
    returns SensitiveGroup from Select3D;
    	---Purpose: Constructs an empty sensitive group object.
    	-- This is a set of sensitive 3D entities. The sensitive
    	-- entities will be defined using the function Add to fill
    	-- the entity owner OwnerId. If MatchAll is false, nothing can be added.

    Create(OwnerId       : EntityOwner from SelectBasics;
    	   TheList       : in out ListOfSensitive from Select3D;
    	   MatchAll      : Boolean from Standard = Standard_True)
    returns SensitiveGroup from Select3D;
    	---Purpose: Constructs a sensitive group object defined by the list
    	-- TheList and the entity owner OwnerId. If MatchAll is false, nothing is done.

    Add (me   :mutable; LL: in out ListOfSensitive from Select3D);
    	---Purpose: Adds the list of sensitive entities LL to the empty
    	-- sensitive group object created at construction time.
	
    Add (me   :mutable;aSensitive : SensitiveEntity from Select3D);
    	---Purpose: Adds the sensitive entity aSensitive to the non-empty
    	-- sensitive group object created at construction time.

    Remove(me:mutable; aSensitive :SensitiveEntity from Select3D);

    Clear(me:mutable) ;
    	---Purpose: Removes all sensitive entities from the list used at the
    	-- time of construction, or added using the function Add.

    IsIn(me;aSensitive: SensitiveEntity from Select3D)
    returns Boolean from Standard;
    	---Purpose: Returns true if the sensitive entity aSensitive is in
    	-- the list used at the time of construction, or added using the function Add.
    Set(me:mutable; MustMatchAllEntities: Boolean from Standard);
    	---Purpose: Sets the requirement that all sensitive entities in the
	-- list used at the time of construction, or added using
	-- the function Add must be matched.
    	---C++: inline
    MustMatchAll(me) returns Boolean from Standard;
    	---Purpose: Returns true if all sensitive entities in the list used
    	-- at the time of construction, or added using the function Add must be matched.
    	---C++: inline




    Project (me:mutable;aProjector : Projector from Select3D) 
    is redefined static;
    	---Level: Public 
    	---Purpose: projection of the sensitive primitive in order to
    	--          get 2D boxes for the Sort Algorithm

    Areas   (me:mutable ; boxes : in out ListOfBox2d from SelectBasics) 
    is redefined static;
    	---Level: Public 
    	---Purpose: gives the 2D boxes which represent the segment in the 
    	--          selection process...


    MaxBoxes(me) returns Integer from Standard is redefined static;

    GetConnected(me:mutable;aLocation: Location from TopLoc)
    returns SensitiveEntity from Select3D is redefined static;


    SetLocation(me:mutable;aLoc:Location from TopLoc) is redefined static;
    	---Purpose:  propagation of location on all the sensitive inside...
    ResetLocation(me:mutable) is redefined static;
    	---Purpose:  propagation of location on all the sensitive inside...    

    Matches (me : mutable;
             thePickArgs : PickArgs from SelectBasics;
             theMatchDMin, theMatchDepth : out Real from Standard)
    returns Boolean is redefined static;
    ---Level: Public
    ---Purpose: Checks whether the sensitive entity matches the picking
    -- detection area (close to the picking line).
    -- For details please refer to base class declaration.

    Matches (me  :mutable; 
             XMin,YMin,XMax,YMax : Real from Standard;
             aTol: Real from Standard) 
    returns Boolean
    is static;
     
    Matches (me  :mutable; 
             Polyline:Array1OfPnt2d from TColgp;
	     aBox:Box2d from Bnd;
             aTol: Real from Standard) 
    returns Boolean
    is redefined virtual;
    	---Level: Public 

    Set(me:mutable;TheOwnerId: EntityOwner from SelectBasics) is redefined static; 
    ---Purpose: Sets the owner for all entities in group 
     
    GetEntities(me)
    returns ListOfSensitive from Select3D; 
    ---Purpose: Gets group content 
    ---C++: inline
    ---C++: return const&


fields
    myList         : ListOfSensitive from Select3D;
    myMustMatchAll : Boolean from Standard;
end SensitiveGroup;