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Diffstat (limited to 'src/qml/types/qqmlobjectmodel.cpp')
| -rw-r--r-- | src/qml/types/qqmlobjectmodel.cpp | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/src/qml/types/qqmlobjectmodel.cpp b/src/qml/types/qqmlobjectmodel.cpp deleted file mode 100644 index b6330b4295..0000000000 --- a/src/qml/types/qqmlobjectmodel.cpp +++ /dev/null @@ -1,431 +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 "qqmlobjectmodel_p.h" - -#include <QtCore/qcoreapplication.h> -#include <QtQml/qqmlcontext.h> -#include <QtQml/qqmlengine.h> -#include <QtQml/qqmlinfo.h> - -#include <private/qqmlchangeset_p.h> -#include <private/qqmlglobal_p.h> -#include <private/qobject_p.h> -#include <private/qpodvector_p.h> - -#include <QtCore/qhash.h> -#include <QtCore/qlist.h> - -QT_BEGIN_NAMESPACE - -QHash<QObject*, QQmlObjectModelAttached*> QQmlObjectModelAttached::attachedProperties; - - -class QQmlObjectModelPrivate : public QObjectPrivate -{ - Q_DECLARE_PUBLIC(QQmlObjectModel) -public: - class Item { - public: - Item(QObject *i) : item(i), ref(0) {} - - void addRef() { ++ref; } - bool deref() { return --ref == 0; } - - QObject *item; - int ref; - }; - - QQmlObjectModelPrivate() : QObjectPrivate(), moveId(0) {} - - static void children_append(QQmlListProperty<QObject> *prop, QObject *item) { - int index = static_cast<QQmlObjectModelPrivate *>(prop->data)->children.count(); - static_cast<QQmlObjectModelPrivate *>(prop->data)->insert(index, item); - } - - static int children_count(QQmlListProperty<QObject> *prop) { - return static_cast<QQmlObjectModelPrivate *>(prop->data)->children.count(); - } - - static QObject *children_at(QQmlListProperty<QObject> *prop, int index) { - return static_cast<QQmlObjectModelPrivate *>(prop->data)->children.at(index).item; - } - - static void children_clear(QQmlListProperty<QObject> *prop) { - static_cast<QQmlObjectModelPrivate *>(prop->data)->clear(); - } - - void insert(int index, QObject *item) { - Q_Q(QQmlObjectModel); - children.insert(index, Item(item)); - for (int i = index; i < children.count(); ++i) { - QQmlObjectModelAttached *attached = QQmlObjectModelAttached::properties(children.at(i).item); - attached->setIndex(i); - } - QQmlChangeSet changeSet; - changeSet.insert(index, 1); - emit q->modelUpdated(changeSet, false); - emit q->countChanged(); - emit q->childrenChanged(); - } - - void move(int from, int to, int n) { - Q_Q(QQmlObjectModel); - if (from > to) { - // Only move forwards - flip if backwards moving - int tfrom = from; - int tto = to; - from = tto; - to = tto+n; - n = tfrom-tto; - } - - QPODVector<QQmlObjectModelPrivate::Item, 4> store; - for (int i = 0; i < to - from; ++i) - store.append(children[from + n + i]); - for (int i = 0; i < n; ++i) - store.append(children[from + i]); - - for (int i = 0; i < store.count(); ++i) { - children[from + i] = store[i]; - QQmlObjectModelAttached *attached = QQmlObjectModelAttached::properties(children.at(from + i).item); - attached->setIndex(from + i); - } - - QQmlChangeSet changeSet; - changeSet.move(from, to, n, ++moveId); - emit q->modelUpdated(changeSet, false); - emit q->childrenChanged(); - } - - void remove(int index, int n) { - Q_Q(QQmlObjectModel); - for (int i = index; i < index + n; ++i) { - QQmlObjectModelAttached *attached = QQmlObjectModelAttached::properties(children.at(i).item); - attached->setIndex(-1); - } - children.erase(children.begin() + index, children.begin() + index + n); - for (int i = index; i < children.count(); ++i) { - QQmlObjectModelAttached *attached = QQmlObjectModelAttached::properties(children.at(i).item); - attached->setIndex(i); - } - QQmlChangeSet changeSet; - changeSet.remove(index, n); - emit q->modelUpdated(changeSet, false); - emit q->countChanged(); - emit q->childrenChanged(); - } - - void clear() { - Q_Q(QQmlObjectModel); - for (const Item &child : qAsConst(children)) - emit q->destroyingItem(child.item); - remove(0, children.count()); - } - - int indexOf(QObject *item) const { - for (int i = 0; i < children.count(); ++i) - if (children.at(i).item == item) - return i; - return -1; - } - - uint moveId; - QList<Item> children; -}; - - -/*! - \qmltype ObjectModel - \instantiates QQmlObjectModel - \inqmlmodule QtQml.Models - \ingroup qtquick-models - \brief Defines a set of items to be used as a model. - - An ObjectModel contains the visual items to be used in a view. - When an ObjectModel is used in a view, the view does not require - a delegate since the ObjectModel already contains the visual - delegate (items). - - An item can determine its index within the - model via the \l{ObjectModel::index}{index} attached property. - - The example below places three colored rectangles in a ListView. - \code - import QtQuick 2.0 - import QtQml.Models 2.1 - - Rectangle { - ObjectModel { - id: itemModel - Rectangle { height: 30; width: 80; color: "red" } - Rectangle { height: 30; width: 80; color: "green" } - Rectangle { height: 30; width: 80; color: "blue" } - } - - ListView { - anchors.fill: parent - model: itemModel - } - } - \endcode - - \image objectmodel.png - - \sa {Qt Quick Examples - Views} -*/ - -QQmlObjectModel::QQmlObjectModel(QObject *parent) - : QQmlInstanceModel(*(new QQmlObjectModelPrivate), parent) -{ -} - -/*! - \qmlattachedproperty int QtQml.Models::ObjectModel::index - This attached property holds the index of this delegate's item within the model. - - It is attached to each instance of the delegate. -*/ - -QQmlListProperty<QObject> QQmlObjectModel::children() -{ - Q_D(QQmlObjectModel); - return QQmlListProperty<QObject>(this, - d, - d->children_append, - d->children_count, - d->children_at, - d->children_clear); -} - -/*! - \qmlproperty int QtQml.Models::ObjectModel::count - - The number of items in the model. This property is readonly. -*/ -int QQmlObjectModel::count() const -{ - Q_D(const QQmlObjectModel); - return d->children.count(); -} - -bool QQmlObjectModel::isValid() const -{ - return true; -} - -QObject *QQmlObjectModel::object(int index, QQmlIncubator::IncubationMode) -{ - Q_D(QQmlObjectModel); - QQmlObjectModelPrivate::Item &item = d->children[index]; - item.addRef(); - if (item.ref == 1) { - emit initItem(index, item.item); - emit createdItem(index, item.item); - } - return item.item; -} - -QQmlInstanceModel::ReleaseFlags QQmlObjectModel::release(QObject *item) -{ - Q_D(QQmlObjectModel); - int idx = d->indexOf(item); - if (idx >= 0) { - if (!d->children[idx].deref()) - return QQmlInstanceModel::Referenced; - } - return nullptr; -} - -QVariant QQmlObjectModel::variantValue(int index, const QString &role) -{ - Q_D(QQmlObjectModel); - if (index < 0 || index >= d->children.count()) - return QString(); - return QQmlEngine::contextForObject(d->children.at(index).item)->contextProperty(role); -} - -QQmlIncubator::Status QQmlObjectModel::incubationStatus(int) -{ - return QQmlIncubator::Ready; -} - -int QQmlObjectModel::indexOf(QObject *item, QObject *) const -{ - Q_D(const QQmlObjectModel); - return d->indexOf(item); -} - -QQmlObjectModelAttached *QQmlObjectModel::qmlAttachedProperties(QObject *obj) -{ - return QQmlObjectModelAttached::properties(obj); -} - -/*! - \qmlmethod object QtQml.Models::ObjectModel::get(int index) - \since 5.6 - - Returns the item at \a index in the model. This allows the item - to be accessed or modified from JavaScript: - - \code - Component.onCompleted: { - objectModel.append(objectComponent.createObject()) - console.log(objectModel.get(0).objectName); - objectModel.get(0).objectName = "first"; - } - \endcode - - The \a index must be an element in the list. - - \sa append() -*/ -QObject *QQmlObjectModel::get(int index) const -{ - Q_D(const QQmlObjectModel); - if (index < 0 || index >= d->children.count()) - return nullptr; - return d->children.at(index).item; -} - -/*! - \qmlmethod QtQml.Models::ObjectModel::append(object item) - \since 5.6 - - Appends a new item to the end of the model. - - \code - objectModel.append(objectComponent.createObject()) - \endcode - - \sa insert(), remove() -*/ -void QQmlObjectModel::append(QObject *object) -{ - Q_D(QQmlObjectModel); - d->insert(count(), object); -} - -/*! - \qmlmethod QtQml.Models::ObjectModel::insert(int index, object item) - \since 5.6 - - Inserts a new item to the model at position \a index. - - \code - objectModel.insert(2, objectComponent.createObject()) - \endcode - - The \a index must be to an existing item in the list, or one past - the end of the list (equivalent to append). - - \sa append(), remove() -*/ -void QQmlObjectModel::insert(int index, QObject *object) -{ - Q_D(QQmlObjectModel); - if (index < 0 || index > count()) { - qmlWarning(this) << tr("insert: index %1 out of range").arg(index); - return; - } - d->insert(index, object); -} - -/*! - \qmlmethod QtQml.Models::ObjectModel::move(int from, int to, int n = 1) - \since 5.6 - - Moves \a n items \a from one position \a to another. - - The from and to ranges must exist; for example, to move the first 3 items - to the end of the model: - - \code - objectModel.move(0, objectModel.count - 3, 3) - \endcode - - \sa append() -*/ -void QQmlObjectModel::move(int from, int to, int n) -{ - Q_D(QQmlObjectModel); - if (n <= 0 || from == to) - return; - if (from < 0 || to < 0 || from + n > count() || to + n > count()) { - qmlWarning(this) << tr("move: out of range"); - return; - } - d->move(from, to, n); -} - -/*! - \qmlmethod QtQml.Models::ObjectModel::remove(int index, int n = 1) - \since 5.6 - - Removes the items at \a index from the model. - - \sa clear() -*/ -void QQmlObjectModel::remove(int index, int n) -{ - Q_D(QQmlObjectModel); - if (index < 0 || n <= 0 || index + n > count()) { - qmlWarning(this) << tr("remove: indices [%1 - %2] out of range [0 - %3]").arg(index).arg(index+n).arg(count()); - return; - } - d->remove(index, n); -} - -/*! - \qmlmethod QtQml.Models::ObjectModel::clear() - \since 5.6 - - Clears all items from the model. - - \sa append(), remove() -*/ -void QQmlObjectModel::clear() -{ - Q_D(QQmlObjectModel); - d->clear(); -} - -QT_END_NAMESPACE - -#include "moc_qqmlobjectmodel_p.cpp" |