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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:34:13 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:34:13 (GMT)
commit67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch)
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Long live Qt!
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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 QtScript 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSCRIPTBUFFER_P_H
+#define QSCRIPTBUFFER_P_H
+
+#include <QtCore/qglobal.h>
+
+QT_BEGIN_NAMESPACE
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+namespace QScript
+{
+ template <typename T> class Buffer
+ {
+ public:
+ typedef T *iterator;
+ typedef const T *const_iterator;
+
+ Buffer() : m_data(0), m_capacity(0), m_size(0) { }
+ ~Buffer() { delete [] m_data; }
+
+ inline void reserve(int num);
+ inline void reset();
+ inline void clear();
+ inline void append(const T &t);
+
+ inline iterator begin();
+ inline iterator end();
+
+ inline const_iterator begin() const;
+ inline const_iterator end() const;
+
+ inline int size() const;
+ inline void resize(int s);
+
+ inline int capacity() const;
+ inline T *data();
+ inline const T *constData() const;
+
+ inline T &last();
+ inline T &takeLast();
+
+ inline T &at(int i) { return (*this)[i]; }
+ inline const T &at(int i) const { return (*this)[i]; }
+
+ inline T &operator[](int i);
+ inline const T &operator[](int i) const;
+
+ inline bool isEmpty() const;
+
+ private:
+ T *m_data;
+ int m_capacity;
+ int m_size;
+
+ private:
+ Q_DISABLE_COPY(Buffer)
+ };
+
+} // namespace QScript
+
+template <typename T> T *QScript::Buffer<T>::data() { return m_data; }
+template <typename T> const T *QScript::Buffer<T>::constData() const { return m_data; }
+template <typename T> void QScript::Buffer<T>::reset() { m_size = 0; }
+template <typename T> int QScript::Buffer<T>::capacity() const { return m_capacity; }
+
+template <typename T> int QScript::Buffer<T>::size() const { return m_size; }
+template <typename T> void QScript::Buffer<T>::resize(int s)
+{
+ if (m_capacity < s)
+ reserve (s << 1);
+
+ m_size = s;
+}
+
+template <typename T> void QScript::Buffer<T>::clear()
+{
+ delete [] m_data;
+ m_data = 0;
+ m_size = 0;
+ m_capacity = 0;
+}
+
+template <typename T> void QScript::Buffer<T>::reserve(int x)
+{
+ // its an ever expanding buffer so it never gets smaller..
+ if (x < m_capacity)
+ return;
+ m_capacity = x;
+ T *new_data = new T[m_capacity];
+ for (int i=0; i<m_size; ++i)
+ new_data[i] = m_data[i];
+ delete [] m_data;
+ m_data = new_data;
+}
+
+template <typename T> void QScript::Buffer<T>::append(const T &t)
+{
+ if (m_size == m_capacity)
+ reserve(m_capacity + 32);
+ m_data[m_size++] = t;
+}
+
+template <typename T> T &QScript::Buffer<T>::operator[](int i)
+{
+ Q_ASSERT(i >= 0);
+ Q_ASSERT(i < m_size);
+ return m_data[i];
+}
+
+template <typename T> const T &QScript::Buffer<T>::operator[](int i) const
+{
+ Q_ASSERT(i >= 0);
+ Q_ASSERT(i < m_size);
+ return m_data[i];
+}
+
+template <typename T> bool QScript::Buffer<T>::isEmpty() const
+{
+ return m_size == 0;
+}
+
+template <typename T> T &QScript::Buffer<T>::takeLast()
+{
+ Q_ASSERT(!isEmpty());
+ --m_size;
+ return m_data[m_size];
+}
+
+template <typename T> T &QScript::Buffer<T>::last()
+{
+ return m_data[m_size - 1];
+}
+
+template <typename T> typename QScript::Buffer<T>::iterator QScript::Buffer<T>::begin()
+{
+ return m_data;
+}
+
+template <typename T> typename QScript::Buffer<T>::iterator QScript::Buffer<T>::end()
+{
+ return m_data + m_size;
+}
+
+template <typename T> typename QScript::Buffer<T>::const_iterator QScript::Buffer<T>::begin() const
+{
+ return m_data;
+}
+
+template <typename T> typename QScript::Buffer<T>::const_iterator QScript::Buffer<T>::end() const
+{
+ return m_data + m_size;
+}
+
+QT_END_NAMESPACE
+
+#endif