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133 lines
4.2 KiB
C++
Executable File
133 lines
4.2 KiB
C++
Executable File
// Created by: DAUTRY Philippe
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// Copyright (c) 1997-1999 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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// --------------------------
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// Version: 0.0
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//Version Date Purpose
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// 0.0 Feb 7 1997 Creation
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#include <TDF_AttributeIterator.hxx>
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//=======================================================================
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//function : TDF_AttributeIterator
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//purpose :
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//=======================================================================
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TDF_AttributeIterator::TDF_AttributeIterator()
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: myValue (0L),
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myWithoutForgotten (Standard_True)
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{}
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//=======================================================================
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//function : TDF_AttributeIterator
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//purpose :
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//=======================================================================
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TDF_AttributeIterator::TDF_AttributeIterator
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(const TDF_Label& aLabel,
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const Standard_Boolean withoutForgotten)
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: myValue (0L),
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myWithoutForgotten (withoutForgotten)
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{
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const Handle(TDF_Attribute)& aFirstAttribute =
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aLabel.myLabelNode->FirstAttribute();
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if (!aFirstAttribute.IsNull())
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goToNext (aFirstAttribute);
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}
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//=======================================================================
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//function : TDF_AttributeIterator
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//purpose :
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//=======================================================================
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TDF_AttributeIterator::TDF_AttributeIterator
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(const TDF_LabelNodePtr aLabelNode,
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const Standard_Boolean withoutForgotten)
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: myValue (0L),
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myWithoutForgotten (withoutForgotten)
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{
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const Handle(TDF_Attribute)& aFirstAttribute = aLabelNode->FirstAttribute();
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if (!aFirstAttribute.IsNull())
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goToNext (aFirstAttribute);
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}
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//=======================================================================
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//function : TDF_AttributeIterator
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//purpose :
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//=======================================================================
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void TDF_AttributeIterator::Initialize
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(const TDF_Label& aLabel,
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const Standard_Boolean withoutForgotten)
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{
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myWithoutForgotten = withoutForgotten;
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const Handle(TDF_Attribute)& aFirstAttribute =
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aLabel.myLabelNode->FirstAttribute();
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if (aFirstAttribute.IsNull())
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myValue = 0L;
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else
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goToNext (aFirstAttribute);
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}
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//=======================================================================
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//function : Next
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//purpose :
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//=======================================================================
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void TDF_AttributeIterator::Next()
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{
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// A little bit complicated...
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// but necessary if we want to find sometimes the Forgotten attributes.
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if (myValue) {
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const Handle(TDF_Attribute)& anAttribute = myValue->myNext;
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if (anAttribute.IsNull())
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myValue = 0L;
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else
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goToNext (anAttribute);
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}
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}
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//=======================================================================
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//function : goToNext
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//purpose : private method, used by the above
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//=======================================================================
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void TDF_AttributeIterator::goToNext (const Handle(TDF_Attribute)& anAttr)
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{
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myValue = anAttr.operator->();
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if (myWithoutForgotten) {
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while (myValue->IsForgotten()) {
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const Handle(TDF_Attribute)& anAttribute = myValue->myNext;
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if (anAttribute.IsNull()) {
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myValue = 0L;
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break;
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}
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myValue = anAttribute.operator->();
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}
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}
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}
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