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Diffstat (limited to 'src/declarative/qml/qpodvector_p.h')
-rw-r--r-- | src/declarative/qml/qpodvector_p.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/declarative/qml/qpodvector_p.h b/src/declarative/qml/qpodvector_p.h new file mode 100644 index 0000000..42d6017 --- /dev/null +++ b/src/declarative/qml/qpodvector_p.h @@ -0,0 +1,173 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QPODVECTOR_P_H +#define QPODVECTOR_P_H + +// +// 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. +// + +#include <QtCore/qglobal.h> +#include <QDebug> + +QT_BEGIN_NAMESPACE + +template<class T, int Increment=1024> +class QPODVector +{ +public: + QPODVector() + : m_count(0), m_capacity(0), m_data(0) {} + ~QPODVector() { if (m_data) ::free(m_data); } + + const T &at(int idx) const { + return m_data[idx]; + } + + T &operator[](int idx) { + return m_data[idx]; + } + + void clear() { + m_count = 0; + } + + void prepend(const T &v) { + insert(0, v); + } + + void append(const T &v) { + insert(m_count, v); + } + + void insert(int idx, const T &v) { + if (m_count == m_capacity) { + m_capacity += Increment; + m_data = (T *)realloc(m_data, m_capacity * sizeof(T)); + } + int moveCount = m_count - idx; + if (moveCount) + ::memmove(m_data + idx + 1, m_data + idx, moveCount * sizeof(T)); + m_count++; + m_data[idx] = v; + } + + void reserve(int count) { + if (count >= m_capacity) { + m_capacity = (count + (Increment-1)) & (0xFFFFFFFF - Increment + 1); + m_data = (T *)realloc(m_data, m_capacity * sizeof(T)); + } + } + + void insertBlank(int idx, int count) { + int newSize = m_count + count; + reserve(newSize); + int moveCount = m_count - idx; + if (moveCount) + ::memmove(m_data + idx + count, m_data + idx, + moveCount * sizeof(T)); + m_count = newSize; + } + + void remove(int idx, int count = 1) { + int moveCount = m_count - (idx + count); + if (moveCount) + ::memmove(m_data + idx, m_data + idx + count, + moveCount * sizeof(T)); + m_count -= count; + } + + void removeOne(const T &v) { + int idx = 0; + while (idx < m_count) { + if (m_data[idx] == v) { + remove(idx); + return; + } + ++idx; + } + } + + int find(const T &v) { + for (int idx = 0; idx < m_count; ++idx) + if (m_data[idx] == v) + return idx; + return -1; + } + + bool contains(const T &v) { + return find(v) != -1; + } + + int count() const { + return m_count; + } + + void copyAndClear(QPODVector<T,Increment> &other) { + if (other.m_data) ::free(other.m_data); + other.m_count = m_count; + other.m_capacity = m_capacity; + other.m_data = m_data; + m_count = 0; + m_capacity = 0; + m_data = 0; + } + + QPODVector<T,Increment> &operator<<(const T &v) { append(v); return *this; } +private: + QPODVector(const QPODVector &); + QPODVector &operator=(const QPODVector &); + int m_count; + int m_capacity; + T *m_data; +}; + +QT_END_NAMESPACE + +#endif |