-- File:	Interface_GTool.cdl
-- Created:	Thu Jan  8 14:42:05 1998
-- Author:	Christian CAILLET
--		<xstep@heliox.paris1.matra-dtv.fr>
---Copyright:	 Matra Datavision 1998


class GTool  from Interface    inherits TShared

    ---Purpose : GTool - General Tool for a Model
    --           Provides the functions performed by Protocol/GeneralModule for
    --           entities of a Model, and recorded in a GeneralLib
    --           Optimized : once an entity has been queried, the GeneralLib is
    --           not longer queried
    --           Shareable between several users : as a Handle

uses Transient,
     Protocol, GeneralLib, GeneralModule,
     SignType, InterfaceModel,
     IndexedDataMapOfTransientTransient from TColStd,
     DataMapOfTransientInteger   from Interface

is

    Create  returns mutable GTool;
    ---Purpose : Creates an empty, not set, GTool

    Create (proto : Protocol; nbent : Integer = 0)  returns mutable GTool;
    ---Purpose : Creates a GTool from a Protocol
    --           Optional starting count of entities

    SetSignType (me : mutable; sign : SignType);
    ---Purpose : Sets a new SignType

    SignType    (me) returns SignType;
    ---Purpose : Returns the SignType. Can be null

    SignValue   (me; ent : Transient; model : InterfaceModel)
    	returns CString;
    ---Purpose : Returns the Signature for a Transient Object in a Model
    --           It calls SignType to do that
    --           If SignType is not defined, return ClassName of <ent>

    SignName    (me) returns CString;
    ---Purpose : Returns the Name of the SignType, or "Class Name"

    SetProtocol (me : mutable; proto : Protocol; enforce : Boolean = Standard_False);
    ---Purpose : Sets a new Protocol
    --           if <enforce> is False and the new Protocol equates the old one
    --           then nothing is done

    Protocol    (me) returns Protocol;
    ---Purpose : Returns the Protocol.  Warning : it can be Null

    Lib         (me : mutable) returns GeneralLib;
    ---Purpose : Returns the GeneralLib itself
    ---C++ : return &

    Reservate   (me : mutable; nb : Integer; enforce : Boolean = Standard_False);
    ---Purpose : Reservates maps for a count of entities
    --           <enforce> False : minimum count
    --           <enforce> True  : clears former reservations
    --           Does not clear the maps

    ClearEntities (me : mutable);
    ---Purpose : Clears the maps which record, for each already recorded entity
    --           its Module and Case Number

    Select (me : mutable; ent : Transient;
    	    gmod : out mutable GeneralModule;
    	    CN   : out Integer;
    	    enforce : Boolean = Standard_False)  returns Boolean;
    ---Purpose : Selects for an entity, its Module and Case Number
    --           It is optimised : once done for each entity, the result is
    --           mapped and the GeneralLib is not longer queried
    --           <enforce> True overpasses this optimisation

fields

    theproto : Protocol;
    thesign  : SignType;
    thelib   : GeneralLib;
    thentnum : DataMapOfTransientInteger;
    thentmod : IndexedDataMapOfTransientTransient;

end GTool;