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Diffstat (limited to 'src/qml/util/qqmllistaccessor.cpp')
| -rw-r--r-- | src/qml/util/qqmllistaccessor.cpp | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/src/qml/util/qqmllistaccessor.cpp b/src/qml/util/qqmllistaccessor.cpp deleted file mode 100644 index 46a11e2bc2..0000000000 --- a/src/qml/util/qqmllistaccessor.cpp +++ /dev/null @@ -1,160 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qqmllistaccessor_p.h" - -#include <private/qqmlmetatype_p.h> - -#include <QtCore/qstringlist.h> -#include <QtCore/qdebug.h> - -// ### Remove me -#include <private/qqmlengine_p.h> - -QT_BEGIN_NAMESPACE - -QQmlListAccessor::QQmlListAccessor() -: m_type(Invalid) -{ -} - -QQmlListAccessor::~QQmlListAccessor() -{ -} - -QVariant QQmlListAccessor::list() const -{ - return d; -} - -void QQmlListAccessor::setList(const QVariant &v, QQmlEngine *engine) -{ - d = v; - - // An incoming JS array as model is treated as a variant list, so we need to - // convert it first with toVariant(). - if (d.userType() == qMetaTypeId<QJSValue>()) - d = d.value<QJSValue>().toVariant(); - - QQmlEnginePrivate *enginePrivate = engine?QQmlEnginePrivate::get(engine):nullptr; - - if (!d.isValid()) { - m_type = Invalid; - } else if (d.userType() == QVariant::StringList) { - m_type = StringList; - } else if (d.userType() == QMetaType::QVariantList) { - m_type = VariantList; - } else if (d.canConvert(QVariant::Int)) { - // Here we have to check for an upper limit, because down the line code might (well, will) - // allocate memory depending on the number of elements. The upper limit cannot be INT_MAX: - // QVector<QPointer<QQuickItem>> something; - // something.resize(count()); - // (See e.g. QQuickRepeater::regenerate()) - // This will allocate data along the lines of: - // sizeof(QPointer<QQuickItem>) * count() + QVector::headerSize - // So, doing an approximate round-down-to-nice-number, we get: - const int upperLimit = 100 * 1000 * 1000; - - int i = v.toInt(); - if (i < 0) { - qWarning("Model size of %d is less than 0", i); - m_type = Invalid; - } else if (i > upperLimit) { - qWarning("Model size of %d is bigger than the upper limit %d", i, upperLimit); - m_type = Invalid; - } else { - m_type = Integer; - } - } else if ((!enginePrivate && QQmlMetaType::isQObject(d.userType())) || - (enginePrivate && enginePrivate->isQObject(d.userType()))) { - QObject *data = enginePrivate?enginePrivate->toQObject(d):QQmlMetaType::toQObject(d); - d = QVariant::fromValue(data); - m_type = Instance; - } else if (d.userType() == qMetaTypeId<QQmlListReference>()) { - m_type = ListProperty; - } else { - m_type = Instance; - } -} - -int QQmlListAccessor::count() const -{ - switch(m_type) { - case StringList: - return qvariant_cast<QStringList>(d).count(); - case VariantList: - return qvariant_cast<QVariantList>(d).count(); - case ListProperty: - return ((const QQmlListReference *)d.constData())->count(); - case Instance: - return 1; - case Integer: - return d.toInt(); - default: - case Invalid: - return 0; - } -} - -QVariant QQmlListAccessor::at(int idx) const -{ - Q_ASSERT(idx >= 0 && idx < count()); - switch(m_type) { - case StringList: - return QVariant::fromValue(qvariant_cast<QStringList>(d).at(idx)); - case VariantList: - return qvariant_cast<QVariantList>(d).at(idx); - case ListProperty: - return QVariant::fromValue(((const QQmlListReference *)d.constData())->at(idx)); - case Instance: - return d; - case Integer: - return QVariant(idx); - default: - case Invalid: - return QVariant(); - } -} - -bool QQmlListAccessor::isValid() const -{ - return m_type != Invalid; -} - -QT_END_NAMESPACE |