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75 lines
2.3 KiB
C++
Executable File
75 lines
2.3 KiB
C++
Executable File
// Created on: 1991-06-13
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// Created by: Arnaud BOUZY
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#include <Expr_RelationIterator.ixx>
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#include <Standard_NoMoreObject.hxx>
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#include <Standard_NoSuchObject.hxx>
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#include <Expr_SystemRelation.hxx>
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Expr_RelationIterator::Expr_RelationIterator (const Handle(Expr_GeneralRelation)& rel):myRelation(1,rel->NbOfSingleRelations())
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{
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if (rel->IsKind(STANDARD_TYPE(Expr_SingleRelation))) {
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myRelation(1) = Handle(Expr_SingleRelation)::DownCast(rel);
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}
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else {
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Standard_Integer nbcur = 1;
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Handle(Expr_GeneralRelation) currel;
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for (Standard_Integer i =1; i<= rel->NbOfSubRelations(); i++) {
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currel = rel->SubRelation(i);
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if (currel->IsKind(STANDARD_TYPE(Expr_SingleRelation))) {
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myRelation(nbcur) = Handle(Expr_SingleRelation)::DownCast(currel);
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nbcur++;
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}
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else {
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Expr_RelationIterator subit(currel);
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while (subit.More()) {
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myRelation(nbcur) = subit.Value();
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subit.Next();
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nbcur++;
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}
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}
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}
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}
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current = 1;
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}
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Standard_Boolean Expr_RelationIterator::More () const
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{
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return (current <= myRelation.Length());
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}
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void Expr_RelationIterator::Next ()
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{
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if (!More()) {
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Standard_NoMoreObject::Raise();
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}
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current++;
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}
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Handle(Expr_SingleRelation) Expr_RelationIterator::Value () const
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{
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if (!More()) {
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Standard_NoSuchObject::Raise();
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}
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return myRelation(current);
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}
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