0024510: Remove unused local variables

[occt.git] / src / IFSelect / IFSelect_SignCounter.cdl

-- Created on: 1994-11-07
-- Created by: Christian CAILLET
-- Copyright (c) 1994-1999 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 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 SignCounter  from IFSelect  inherits SignatureList

    ---Purpose : SignCounter gives the frame to count signatures associated
    --           with entities, deducted from them. Ex.: their Dynamic Type.
    --           
    --	         It can sort a set of Entities according a signature, i.e. :
    --           - list of different values found for this Signature
    --           - for each one, count and list of entities
    --           Results are returned as a SignatureList, which can be queried
    --           on the count (list of strings, count per signature, or list of
    --           entities per signature)
    --           
    --           A SignCounter can be filled, either directly from lists, or
    --           from the result of a Selection : hence, its content can be
    --           automatically recomputed as desired
    --           
    --           SignCounter works by using a Signature in its method AddSign
    --           
    --           Methods can be redefined to, either
    --           - directly compute the value without a Signature
    --           - compute the value in the context of a Graph

uses CString, Transient, MapOfTransient, HAsciiString from TCollection,
     HSequenceOfTransient,
     InterfaceModel, Graph, Selection, Signature

is

    Create (withmap  : Boolean = Standard_True;
    	    withlist : Boolean = Standard_False) returns mutable SignCounter;
    ---Purpose : Creates a SignCounter, without proper Signature
    --           If <withmap> is True (default), added entities are counted
    --           only if they are not yet recorded in the map
    --           Map control can be set off if the input garantees uniqueness
    --           of data
    --           <withlist> is transmitted to SignatureList (option to list
    --           entities, not only to count them).

    Create (matcher  : mutable Signature;
    	    withmap  : Boolean = Standard_True;
    	    withlist : Boolean = Standard_False)  returns mutable SignCounter;
    ---Purpose : Creates a SignCounter, with a predefined Signature
    --           Other arguments as for Create without Signature.

    Signature (me) returns mutable Signature;
    ---Purpose : Returns the Signature used to count entities. It can be null.

    SetMap  (me : mutable; withmap  : Boolean);
    ---Purpose : Changes the control status. The map is not cleared, simply
    --           its use changes

    AddEntity (me : mutable; ent : Transient; model : InterfaceModel)
    	returns Boolean  is virtual;
    ---Purpose : Adds an entity by considering its signature, which is given by
    --           call to method AddSign
    --           Returns True if added, False if already in the map (and
    --           map control status set)

    AddSign   (me : mutable; ent : Transient; model : InterfaceModel)
    	is virtual;
    ---Purpose : Adds an entity (already filtered by Map) with its signature.
    --           This signature can be computed with the containing model.
    --           Its value is provided by the object Signature given at start,
    --           if no Signature is defined, it does nothing.
    --           
    --           Can be redefined (in this case, see also Sign)

    AddList   (me : mutable; list : HSequenceOfTransient; model : InterfaceModel);
    ---Purpose : Adds a list of entities by adding each of the items

    AddWithGraph (me : mutable; list : HSequenceOfTransient; graph : Graph)
    	is virtual;
    ---Purpose : Adds a list of entities in the context given by the graph
    --           Default just call basic AddList
    --           Can be redefined to get a signature computed with the graph

    AddModel  (me : mutable; model : InterfaceModel);
    ---Purpose : Adds all the entities contained in a Model

    AddFromSelection (me : mutable; sel : Selection; G : Graph);
    ---Purpose : Adds the result determined by a Selection from a Graph
    --           Remark : does not impact at all data from SetSelection & Co

    	--    Counting on selection result    --

    SetSelection (me : mutable; sel : Selection);
    ---Purpose : Sets a Selection as input : this causes content to be cleared
    --           then the Selection to be ready to compute (but not immediatly)

    Selection    (me) returns Selection;
    ---Purpose : Returns the selection, or a null Handle

    SetSelMode   (me : mutable; selmode : Integer);
    ---Purpose : Changes the mode of working with the selection :
    --           -1 just clears optimisation data and nothing else
    --           0 clears it   1 inhibits it for computing (but no clearing)
    --           2 sets it active for computing
    --           Default at creation is 0, after SetSelection (not null) is 2

    SelMode      (me) returns Integer;
    ---Purpose : Returns the mode of working with the selection

    ComputeSelected (me : mutable; G : Graph; forced : Boolean=Standard_False)
    	returns Boolean;
    ---Purpose : Computes from the selection result, if selection is active
    --           (mode 2). If selection is not defined (mode 0) or is inhibited
    --           (mode 1) does nothing.
    --           Returns True if computation is done (or optimised), False else
    --           This method is called by ComputeCounter from WorkSession
    --           
    --           If <forced> is True, recomputes systematically
    --           Else (D), if the counter was not cleared and if the former
    --           computed result started from the same total size of Graph and
    --           same count of selected entities : computation is not redone
    --           unless <forced> is given as True


    Sign (me; ent : Transient; model : InterfaceModel)
    	returns HAsciiString  is virtual;
    ---Purpose : Determines and returns the value of the signature for an
    --           entity as an HAsciiString. This method works exactly as
    --           AddSign, which is optimized
    --           
    --           Can be redefined, accorded with AddSign

    ComputedSign (me : mutable; ent : Transient; G : Graph) returns CString;
    ---Purpose : Applies AddWithGraph on one entity, and returns the Signature
    --           Value which has been recorded
    --           To do this, Add is called with SignOnly Mode True during the
    --           call, the returned value is LastValue

fields

    themapstat : Boolean;
    themap     : MapOfTransient;
    thematcher : Signature;
    
    theselect  : Selection;
    theselmode : Integer;
    thenbcomp1 : Integer;
    thenbcomp2 : Integer;

end SignCounter;