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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 examples 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 <QtScript/QScriptClassPropertyIterator>
+#include <QtScript/QScriptEngine>
+#include "bytearrayclass.h"
+#include "bytearrayprototype.h"
+
+#include <stdlib.h>
+
+Q_DECLARE_METATYPE(QByteArray*)
+Q_DECLARE_METATYPE(ByteArrayClass*)
+
+class ByteArrayClassPropertyIterator : public QScriptClassPropertyIterator
+{
+public:
+ ByteArrayClassPropertyIterator(const QScriptValue &object);
+ ~ByteArrayClassPropertyIterator();
+
+ bool hasNext() const;
+ void next();
+
+ bool hasPrevious() const;
+ void previous();
+
+ void toFront();
+ void toBack();
+
+ QScriptString name() const;
+ uint id() const;
+
+private:
+ int m_index;
+ int m_last;
+};
+
+static qint32 toArrayIndex(const QString &str)
+{
+ QByteArray bytes = str.toUtf8();
+ char *eptr;
+ quint32 pos = strtoul(bytes.constData(), &eptr, 10);
+ if ((eptr == bytes.constData() + bytes.size())
+ && (QByteArray::number(pos) == bytes)) {
+ return pos;
+ }
+ return -1;
+}
+
+//! [0]
+ByteArrayClass::ByteArrayClass(QScriptEngine *engine)
+ : QObject(engine), QScriptClass(engine)
+{
+ qScriptRegisterMetaType<QByteArray>(engine, toScriptValue, fromScriptValue);
+
+ length = engine->toStringHandle(QLatin1String("length"));
+
+ proto = engine->newQObject(new ByteArrayPrototype(this),
+ QScriptEngine::QtOwnership,
+ QScriptEngine::SkipMethodsInEnumeration
+ | QScriptEngine::ExcludeSuperClassMethods
+ | QScriptEngine::ExcludeSuperClassProperties);
+ QScriptValue global = engine->globalObject();
+ proto.setPrototype(global.property("Object").property("prototype"));
+
+ ctor = engine->newFunction(construct);
+ ctor.setData(qScriptValueFromValue(engine, this));
+}
+//! [0]
+
+ByteArrayClass::~ByteArrayClass()
+{
+}
+
+//! [3]
+QScriptClass::QueryFlags ByteArrayClass::queryProperty(const QScriptValue &object,
+ const QScriptString &name,
+ QueryFlags flags, uint *id)
+{
+ QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
+ if (!ba)
+ return 0;
+ if (name == length) {
+ return flags;
+ } else {
+ qint32 pos = toArrayIndex(name);
+ if (pos == -1)
+ return 0;
+ *id = pos;
+ if ((flags & HandlesReadAccess) && (pos >= ba->size()))
+ flags &= ~HandlesReadAccess;
+ return flags;
+ }
+}
+//! [3]
+
+//! [4]
+QScriptValue ByteArrayClass::property(const QScriptValue &object,
+ const QScriptString &name, uint id)
+{
+ QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
+ if (!ba)
+ return QScriptValue();
+ if (name == length) {
+ return ba->length();
+ } else {
+ qint32 pos = id;
+ if ((pos < 0) || (pos >= ba->size()))
+ return QScriptValue();
+ return uint(ba->at(pos)) & 255;
+ }
+ return QScriptValue();
+}
+//! [4]
+
+//! [5]
+void ByteArrayClass::setProperty(QScriptValue &object,
+ const QScriptString &name,
+ uint id, const QScriptValue &value)
+{
+ QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
+ if (!ba)
+ return;
+ if (name == length) {
+ ba->resize(value.toInt32());
+ } else {
+ qint32 pos = id;
+ if (pos < 0)
+ return;
+ if (ba->size() <= pos)
+ ba->resize(pos + 1);
+ (*ba)[pos] = char(value.toInt32());
+ }
+}
+//! [5]
+
+//! [6]
+QScriptValue::PropertyFlags ByteArrayClass::propertyFlags(
+ const QScriptValue &/*object*/, const QScriptString &name, uint /*id*/)
+{
+ if (name == length) {
+ return QScriptValue::Undeletable
+ | QScriptValue::SkipInEnumeration;
+ }
+ return QScriptValue::Undeletable;
+}
+//! [6]
+
+//! [7]
+QScriptClassPropertyIterator *ByteArrayClass::newIterator(const QScriptValue &object)
+{
+ return new ByteArrayClassPropertyIterator(object);
+}
+//! [7]
+
+QString ByteArrayClass::name() const
+{
+ return QLatin1String("ByteArray");
+}
+
+QScriptValue ByteArrayClass::prototype() const
+{
+ return proto;
+}
+
+QScriptValue ByteArrayClass::constructor()
+{
+ return ctor;
+}
+
+QScriptValue ByteArrayClass::newInstance(int size)
+{
+ return newInstance(QByteArray(size, /*ch=*/0));
+}
+
+//! [1]
+QScriptValue ByteArrayClass::newInstance(const QByteArray &ba)
+{
+ QScriptValue data = engine()->newVariant(qVariantFromValue(ba));
+ return engine()->newObject(this, data);
+}
+//! [1]
+
+//! [2]
+QScriptValue ByteArrayClass::construct(QScriptContext *ctx, QScriptEngine *)
+{
+ ByteArrayClass *cls = qscriptvalue_cast<ByteArrayClass*>(ctx->callee().data());
+ if (!cls)
+ return QScriptValue();
+ int size = ctx->argument(0).toInt32();
+ return cls->newInstance(size);
+}
+//! [2]
+
+QScriptValue ByteArrayClass::toScriptValue(QScriptEngine *eng, const QByteArray &ba)
+{
+ QScriptValue ctor = eng->globalObject().property("ByteArray");
+ ByteArrayClass *cls = qscriptvalue_cast<ByteArrayClass*>(ctor.data());
+ if (!cls)
+ return eng->newVariant(qVariantFromValue(ba));
+ return cls->newInstance(ba);
+}
+
+void ByteArrayClass::fromScriptValue(const QScriptValue &obj, QByteArray &ba)
+{
+ ba = qscriptvalue_cast<QByteArray>(obj.data());
+}
+
+
+
+ByteArrayClassPropertyIterator::ByteArrayClassPropertyIterator(const QScriptValue &object)
+ : QScriptClassPropertyIterator(object)
+{
+ toFront();
+}
+
+ByteArrayClassPropertyIterator::~ByteArrayClassPropertyIterator()
+{
+}
+
+//! [8]
+bool ByteArrayClassPropertyIterator::hasNext() const
+{
+ QByteArray *ba = qscriptvalue_cast<QByteArray*>(object().data());
+ return m_index < ba->size();
+}
+
+void ByteArrayClassPropertyIterator::next()
+{
+ m_last = m_index;
+ ++m_index;
+}
+
+bool ByteArrayClassPropertyIterator::hasPrevious() const
+{
+ return (m_index > 0);
+}
+
+void ByteArrayClassPropertyIterator::previous()
+{
+ --m_index;
+ m_last = m_index;
+}
+
+void ByteArrayClassPropertyIterator::toFront()
+{
+ m_index = 0;
+ m_last = -1;
+}
+
+void ByteArrayClassPropertyIterator::toBack()
+{
+ QByteArray *ba = qscriptvalue_cast<QByteArray*>(object().data());
+ m_index = ba->size();
+ m_last = -1;
+}
+
+QScriptString ByteArrayClassPropertyIterator::name() const
+{
+ return QScriptString();
+}
+
+uint ByteArrayClassPropertyIterator::id() const
+{
+ return m_last;
+}
+//! [8]