qquicktumblerview_p.h

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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QQUICKTUMBLERVIEW_P_H
#define QQUICKTUMBLERVIEW_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 <QQuickItem>
#include <QtQuickControls2Impl/private/qtquickcontrols2implglobal_p.h>
 
QT_BEGIN_NAMESPACE
 
class QQuickListView;
class QQuickPath;
class QQuickPathView;
 
class QQuickTumbler;
 
class Q_QUICKCONTROLS2IMPL_EXPORT QQuickTumblerView : public QQuickItem
{
    Q_OBJECT
    Q_PROPERTY(QVariant model READ model WRITE setModel NOTIFY modelChanged)
    Q_PROPERTY(QQmlComponent *delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
    Q_PROPERTY(QQuickPath *path READ path WRITE setPath NOTIFY pathChanged)
    QML_NAMED_ELEMENT(TumblerView)
    QML_ADDED_IN_VERSION(2, 1)
 
public:
    QQuickTumblerView(QQuickItem *parent = nullptr);
 
    QVariant model() const;
    void setModel(const QVariant &model);
 
    QQmlComponent *delegate() const;
    void setDelegate(QQmlComponent *delegate);
 
    QQuickPath *path() const;
    void setPath(QQuickPath *path);
 
Q_SIGNALS:
    void modelChanged();
    void delegateChanged();
    void pathChanged();
 
protected:
    void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) override;
    void componentComplete() override;
    void itemChange(ItemChange change, const ItemChangeData &data) override;
 
private:
    QQuickItem *view();
    void createView();
    void updateView();
    void updateModel();
 
    void wrapChange();
 
    QQuickTumbler *m_tumbler = nullptr;
    QVariant m_model;
    QQmlComponent *m_delegate = nullptr;
    QQuickPathView *m_pathView = nullptr;
    QQuickListView *m_listView = nullptr;
    QQuickPath *m_path = nullptr;
};
 
QT_END_NAMESPACE
 
#endif // TUMBLERVIEW_H