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Diffstat (limited to 'src/qmlmodels/qqmllistmodel_p.h')
| -rw-r--r-- | src/qmlmodels/qqmllistmodel_p.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/qmlmodels/qqmllistmodel_p.h b/src/qmlmodels/qqmllistmodel_p.h new file mode 100644 index 0000000000..4aabd790a5 --- /dev/null +++ b/src/qmlmodels/qqmllistmodel_p.h @@ -0,0 +1,209 @@ +/**************************************************************************** +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQMLLISTMODEL_H +#define QQMLLISTMODEL_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 <private/qtqmlmodelsglobal_p.h> +#include <private/qqmlcustomparser_p.h> + +#include <QtCore/QObject> +#include <QtCore/QStringList> +#include <QtCore/QHash> +#include <QtCore/QList> +#include <QtCore/QVariant> +#include <QtCore/qabstractitemmodel.h> + +#include <private/qv4engine_p.h> +#include <private/qpodvector_p.h> + +QT_REQUIRE_CONFIG(qml_list_model); + +QT_BEGIN_NAMESPACE + + +class QQmlListModelWorkerAgent; +class ListModel; +class ListLayout; + +namespace QV4 { +struct ModelObject; +} + +class Q_QMLMODELS_PRIVATE_EXPORT QQmlListModel : public QAbstractListModel +{ + Q_OBJECT + Q_PROPERTY(int count READ count NOTIFY countChanged) + Q_PROPERTY(bool dynamicRoles READ dynamicRoles WRITE setDynamicRoles) + Q_PROPERTY(QObject *agent READ agent CONSTANT REVISION(14)) + +public: + QQmlListModel(QObject *parent=nullptr); + ~QQmlListModel(); + + QModelIndex index(int row, int column, const QModelIndex &parent) const override; + int rowCount(const QModelIndex &parent) const override; + QVariant data(const QModelIndex &index, int role) const override; + bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override; + QHash<int,QByteArray> roleNames() const override; + + QVariant data(int index, int role) const; + int count() const; + + Q_INVOKABLE void clear(); + Q_INVOKABLE void remove(QQmlV4Function *args); + Q_INVOKABLE void append(QQmlV4Function *args); + Q_INVOKABLE void insert(QQmlV4Function *args); + Q_INVOKABLE QJSValue get(int index) const; + Q_INVOKABLE void set(int index, const QJSValue &value); + Q_INVOKABLE void setProperty(int index, const QString& property, const QVariant& value); + Q_INVOKABLE void move(int from, int to, int count); + Q_INVOKABLE void sync(); + + QQmlListModelWorkerAgent *agent(); + + bool dynamicRoles() const { return m_dynamicRoles; } + void setDynamicRoles(bool enableDynamicRoles); + +Q_SIGNALS: + void countChanged(); + +private: + friend class QQmlListModelParser; + friend class QQmlListModelWorkerAgent; + friend class ModelObject; + friend struct QV4::ModelObject; + friend class ModelNodeMetaObject; + friend class ListModel; + friend class ListElement; + friend class DynamicRoleModelNode; + friend class DynamicRoleModelNodeMetaObject; + friend struct StringOrTranslation; + + // Constructs a flat list model for a worker agent + QQmlListModel(QQmlListModel *orig, QQmlListModelWorkerAgent *agent); + QQmlListModel(const QQmlListModel *owner, ListModel *data, QV4::ExecutionEngine *engine, QObject *parent=nullptr); + + QV4::ExecutionEngine *engine() const; + + inline bool canMove(int from, int to, int n) const { return !(from+n > count() || to+n > count() || from < 0 || to < 0 || n < 0); } + + mutable QQmlListModelWorkerAgent *m_agent; + mutable QV4::ExecutionEngine *m_engine; + QQmlRefPointer<QV4::CompiledData::CompilationUnit> m_compilationUnit; + bool m_mainThread; + bool m_primary; + + bool m_dynamicRoles; + + ListLayout *m_layout; + ListModel *m_listModel; + + QVector<class DynamicRoleModelNode *> m_modelObjects; + QVector<QString> m_roles; + + struct ElementSync + { + DynamicRoleModelNode *src = nullptr; + DynamicRoleModelNode *target = nullptr; + int srcIndex = -1; + int targetIndex = -1; + QVector<int> changedRoles; + }; + + static bool sync(QQmlListModel *src, QQmlListModel *target); + static QQmlListModel *createWithOwner(QQmlListModel *newOwner); + + void emitItemsChanged(int index, int count, const QVector<int> &roles); + void emitItemsAboutToBeInserted(int index, int count); + void emitItemsInserted(); + + void removeElements(int index, int removeCount); +}; + +// ### FIXME +class QQmlListElement : public QObject +{ +Q_OBJECT +}; + +class QQmlListModelParser : public QQmlCustomParser +{ +public: + enum PropertyType { + Invalid, + Boolean, + Number, + String, + Script + }; + + + QQmlListModelParser() : QQmlCustomParser(QQmlCustomParser::AcceptsSignalHandlers) {} + + void verifyBindings(const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &bindings) override; + void applyBindings(QObject *obj, const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &bindings) override; + +private: + bool verifyProperty(const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &compilationUnit, const QV4::CompiledData::Binding *binding); + // returns true if a role was set + bool applyProperty(const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &compilationUnit, const QV4::CompiledData::Binding *binding, ListModel *model, int outterElementIndex); + + static bool definesEmptyList(const QString &); + + QString listElementTypeName; +}; + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QQmlListModel) +QML_DECLARE_TYPE(QQmlListElement) + +#endif // QQMLLISTMODEL_H |