Initial import of statemachine branch from the old kinetic repository

1 files changed, 115 insertions, 0 deletions

diff --git a/src/xmlpatterns/iterators/qintersectiterator.cpp b/src/xmlpatterns/iterators/qintersectiterator.cpp
new file mode 100644
index 0000000..3073810
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+++ b/src/xmlpatterns/iterators/qintersectiterator.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qitem_p.h"
+
+#include "qintersectiterator_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+IntersectIterator::IntersectIterator(const Item::Iterator::Ptr &it1,
+                                     const Item::Iterator::Ptr &it2) : m_it1(it1),
+                                                                       m_it2(it2),
+                                                                       m_position(0),
+                                                                       m_node1(m_it1->next()),
+                                                                       m_node2(m_it2->next())
+{
+    Q_ASSERT(m_it1);
+    Q_ASSERT(m_it2);
+}
+
+Item IntersectIterator::next()
+{
+    if(!m_node1 || !m_node2)
+        return closedExit();
+
+    do
+    {
+        if(m_node1.asNode().model() == m_node2.asNode().model())
+        {
+            switch(m_node1.asNode().compareOrder(m_node2.asNode()))
+            {
+                case QXmlNodeModelIndex::Precedes:
+                {
+                    m_node1 = m_it1->next();
+                    break;
+                }
+                case QXmlNodeModelIndex::Follows:
+                {
+                    m_node2 = m_it2->next();
+                    break;
+                }
+                default:
+                {
+                    m_current = m_node2;
+                    m_node1 = m_it1->next();
+                    m_node2 = m_it2->next();
+                    ++m_position;
+                    return m_current;
+                }
+            }
+        }
+        else
+            m_node2 = m_it2->next();
+    }
+    while(m_node1 && m_node2);
+
+    return Item();
+}
+
+Item IntersectIterator::current() const
+{
+    return m_current;
+}
+
+xsInteger IntersectIterator::position() const
+{
+    return m_position;
+}
+
+Item::Iterator::Ptr IntersectIterator::copy() const
+{
+    return Item::Iterator::Ptr(new IntersectIterator(m_it1->copy(), m_it2->copy()));
+}
+
+QT_END_NAMESPACE