qt-everywhere-src-5.15.1/qtdeclarative/src/quick/items/qquickitemviewfxitem_p_p.h

/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick 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 QQUICKFXVIEWITEM_P_P_H
#define QQUICKFXVIEWITEM_P_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 <QtQuick/private/qtquickglobal_p.h>
#include <QtQuick/private/qquickitem_p.h>
#include <QtQuick/private/qquickitemviewtransition_p.h>
#include <private/qanimationjobutil_p.h>

QT_REQUIRE_CONFIG(quick_itemview);

QT_BEGIN_NAMESPACE

class Q_QUICK_PRIVATE_EXPORT QQuickItemViewFxItem
{
public:
    QQuickItemViewFxItem(QQuickItem *item, bool ownItem, QQuickItemChangeListener *changeListener);
    virtual ~QQuickItemViewFxItem();

    qreal itemX() const;
    qreal itemY() const;
    inline qreal itemWidth() const { return item ? item->width() : 0; }
    inline qreal itemHeight() const { return item ? item->height() : 0; }

    void moveTo(const QPointF &pos, bool immediate);
    void setVisible(bool visible);
    void trackGeometry(bool track);

    QRectF geometry() const;
    void setGeometry(const QRectF &geometry);

    QQuickItemViewTransitioner::TransitionType scheduledTransitionType() const;
    bool transitionScheduledOrRunning() const;
    bool transitionRunning() const;
    bool isPendingRemoval() const;

    void transitionNextReposition(QQuickItemViewTransitioner *transitioner, QQuickItemViewTransitioner::TransitionType type, bool asTarget);
    bool prepareTransition(QQuickItemViewTransitioner *transitioner, const QRectF &viewBounds);
    void startTransition(QQuickItemViewTransitioner *transitioner);

    // these are positions and sizes along the current direction of scrolling/flicking
    virtual qreal position() const = 0;
    virtual qreal endPosition() const = 0;
    virtual qreal size() const = 0;
    virtual qreal sectionSize() const = 0;

    virtual bool contains(qreal x, qreal y) const = 0;

    SelfDeletable m_selfDeletable;
    QPointer<QQuickItem> item;
    QQuickItemChangeListener *changeListener;
    QQuickItemViewTransitionableItem *transitionableItem;
    int index = -1;
    bool ownItem : 1;
    bool releaseAfterTransition : 1;
    bool trackGeom : 1;
};

QT_END_NAMESPACE

#endif // QQUICKFXVIEWITEM_P_P_H