-- File:	StdSelect_ViewerSelector3d.cdl
-- Created:	Wed Mar 15 10:17:24 1995
-- Author:	Robert COUBLANC
--		<rob@photon>
-- Modified by rob jun 25 98 : Add Method : Reactivate projector...		
---Copyright:	 Matra Datavision 1995



class ViewerSelector3d from StdSelect inherits ViewerSelector from SelectMgr

	---Purpose: Selector Usable by Viewers from V3d 
	--          

uses
    View      from V3d,
    Selection from SelectMgr,
    Projector from Select3D,
    Group     from Graphic3d,
    Structure from Graphic3d,
    Array1OfReal    from TColStd, 
    Array1OfPnt2d from TColgp

is

    Create  returns mutable ViewerSelector3d from StdSelect;
    	---Purpose: Constructs an empty 3D selector object.
    Create(aProj : Projector from Select3D) returns mutable ViewerSelector3d from StdSelect;
    	---Purpose: Constructs a 3D selector object defined by the projector aProj. 

    Convert(me:mutable;aSelection:mutable Selection from SelectMgr)
    is redefined static;
    	---Level: Public 
    	---Purpose: Processes the projection of the sensitive  primitives
    	--          in the active view ; to be done before the selection action...


    Set(me:mutable; aSensitivity : Integer) is static;
    	---Purpose: Sets the sensitivity aSensitivity.
    Set(me:mutable; aProj: Projector from Select3D) is static;
    	---Purpose: Sets the new projector aProj to replace the one used at construction time.
    


    Pick (me           : mutable;XPix,YPix:Integer;
    	  aView        : View from V3d) is static;
    	---Level: Public 
    	---Purpose: Picks the sensitive entity at the pixel coordinates of
    	-- the mouse Xpix and Ypix.   The selector looks for touched areas and owners.


    Pick (me:mutable;XPMin,YPMin,XPMax,YPMax:Integer;aView:View from V3d) is static;
	---Purpose: Picks the sensitive entity according to the minimum
    	-- and maximum pixel values XPMin, YPMin, XPMax
    	-- and YPMax   defining a 2D area for selection in the 3D view aView.
        
    Pick (me:mutable;Polyline:Array1OfPnt2d from TColgp;aView:View from V3d) is static;
    	---Level: Public 
    	---Purpose: pick action  - input pixel values for polyline selection for selection.




    ---Category: Inquire Methods

    Projector (me) returns Projector from Select3D;
    	---Level: Public 
    	---Purpose: Returns the current Projector.
    	---C++: inline
    	---C++: return const&



    ---Category: Internal Methods
    --           -----------------

    ReactivateProjector(me:mutable);
    	---Level: Internal 
    	---Purpose: Puts back the address of the current projector in sensitive primitives...

    UpdateProj(me   :mutable;
    	       aView: View from V3d) returns Boolean is static private;
    	---Level: Internal 


    DisplayAreas(me   :mutable;
    	    	 aView: View from V3d) is static;
    	---Purpose: Displays sensitive areas found in the view aView.

    ClearAreas (me   :mutable;
    	    	aView: View from V3d) is static;
    	---Purpose: Clears the view aView of sensitive areas found in it.
    
    DisplaySensitive(me:mutable;aView : View from V3d) is static; 
  
    	--- Purpose: Displays the selection aSel found in the view aView.
        
    ClearSensitive(me:mutable;aView:View from V3d) is static;




    DisplaySensitive(me:mutable;
    	    	     aSel        : Selection from SelectMgr;
		     aView       : View from V3d;
    	    	     ClearOthers : Boolean from Standard = Standard_True)
    is static;
    
    DisplayAreas(me:mutable;
    	         aSel        :Selection from SelectMgr;
		 aView       : View from V3d;
    	         ClearOthers : Boolean from Standard = Standard_True)
    is static;
    
    
    ComputeSensitivePrs(me:mutable;aSel: Selection from SelectMgr)
    is static private;
    	---Level: Internal 

    ComputeAreasPrs(me:mutable;aSel:Selection from SelectMgr)
     is static private;
    	---Level: Internal 

	


fields

    myprj         : Projector    from Select3D;
    mycoeff       : Real from Standard[14];
    myprevcoeff   : Real from Standard[14];
    mycenter      : Real from Standard[2];
    myprevcenter  : Real from Standard[2];
    mylastzoom    : Real from Standard;
    mypixtol      : Integer ;
    myupdatetol   : Boolean;
    
    
             --areas verification...

    myareagroup : Group            from Graphic3d;
    mysensgroup : Group            from Graphic3d;
    mystruct: Structure        from Graphic3d;

    
end ViewerSelector3d;