src/declarative/qml/qpodvector_p.h
branchGCC_SURGE
changeset 31 5daf16870df6
parent 30 5dc02b23752f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qpodvector_p.h	Thu Jul 22 16:41:55 2010 +0100
@@ -0,0 +1,173 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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