ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkChildTreeIterator.h
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1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0.txt
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  *=========================================================================*/
18 #ifndef __itkChildTreeIterator_h
19 #define __itkChildTreeIterator_h
20 
21 #include "itkTreeIteratorBase.h"
22 
23 namespace itk
24 {
25 template< class TTreeType >
26 class ChildTreeIterator:public TreeIteratorBase< TTreeType >
27 {
28 public:
29 
33  typedef TTreeType TreeType;
34  typedef typename TTreeType::ValueType ValueType;
36  typedef typename TreeNodeType::ChildIdentifier ChildIdentifier;
37  typedef typename Superclass::NodeType NodeType;
38 
40  ChildTreeIterator(TreeType *tree, const TreeNodeType *start = NULL);
41 
44 
46  NodeType GetType() const;
47 
49  virtual bool GoToChild(ChildIdentifier number = 0);
50 
52  virtual bool GoToParent();
53 
56 
58  Self & operator=(Superclass & iterator)
59  {
60  Superclass::operator=(iterator);
62  static_cast< ChildTreeIterator< TTreeType > & >( iterator );
65  return *this;
66  }
68 
69 protected:
70 
72  const ValueType & Next();
73 
75  bool HasNext() const;
76 
77 private:
78 
81 };
82 
83 } // end namespace itk
84 
85 #if ITK_TEMPLATE_TXX
86 #include "itkChildTreeIterator.hxx"
87 #endif
88 
89 #endif
90