Qt 4.8
qunioniterator.cpp
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41 
42 #include "qitem_p.h"
43 
44 #include "qunioniterator_p.h"
45 
47 
48 using namespace QPatternist;
49 
51  const Item::Iterator::Ptr &it2) : m_it1(it1),
52  m_it2(it2),
53  m_position(0),
54  m_node1(m_it1->next()),
55  m_node2(m_it2->next())
56 {
57  Q_ASSERT(m_it1);
58  Q_ASSERT(m_it2);
59 }
60 
62 {
63  ++m_position;
64  if(m_node1 && m_node2)
65  {
66  if(m_node1.asNode().model() != m_node2.asNode().model())
67  {
69  m_node1 = m_it1->next();
70  return m_current;
71  }
72 
74  {
76  {
78  m_node1 = m_it1->next();
79  return m_current;
80  }
82  {
84  m_node2 = m_it2->next();
85  return m_current;
86  }
87  default:
88  {
90  m_node1 = m_it1->next();
91  m_node2 = m_it2->next();
92  return m_current;
93  }
94  }
95  }
96 
97  if(m_node1)
98  {
100  m_node1 = m_it1->next();
101  return m_current;
102  }
103 
104  if(m_node2)
105  {
106  m_current = m_node2;
107  m_node2 = m_it2->next();
108  return m_current;
109  }
110 
111  m_current.reset();
112  m_position = -1;
113  return Item();
114 }
115 
117 {
118  return m_current;
119 }
120 
122 {
123  return m_position;
124 }
125 
127 {
128  return Item::Iterator::Ptr(new UnionIterator(m_it1->copy(), m_it2->copy()));
129 }
130 
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
virtual Item current() const
Returns the current item in the sequence.
DocumentOrder compareOrder(const QXmlNodeModelIndex &other) const
Definition: qitem_p.h:481
const Item::Iterator::Ptr m_it1
qint64 xsInteger
Due to strong interdependencies, this file contains the definitions for the classes Item...
The QExplicitlySharedDataPointer class represents a pointer to an explicitly shared object...
Definition: qshareddata.h:136
const Item::Iterator::Ptr m_it2
virtual xsInteger position() const
Returns the current position in the sequence represented by this.
#define Q_ASSERT(cond)
Definition: qglobal.h:1823
virtual Item next()
Returns the next item in the sequence, or a null object if the end has been reached.
QExplicitlySharedDataPointer< QAbstractXmlForwardIterator< Item > > Ptr
A smart pointer wrapping an instance of a QAbstractXmlForwardIterator subclass.
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The namespace for the internal API of QtXmlPatterns.
UnionIterator(const Item::Iterator::Ptr &it1, const Item::Iterator::Ptr &it2)
const QAbstractXmlNodeModel * model() const
Returns the QAbstractXmlNodeModel that this node index refers to.
const QXmlNodeModelIndex & asNode() const
Definition: qitem_p.h:379
Represents an item in the XPath 2.0 Data Model.
Definition: qitem_p.h:182
virtual Item::Iterator::Ptr copy() const
Copies this QAbstractXmlForwardIterator and returns the copy.