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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKTUMBLER_P_P_H
#define QQUICKTUMBLER_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/qquickitemchangelistener_p.h>
#include <QtQuickTemplates2/private/qquickcontrol_p_p.h>
#include <QtQuickTemplates2/private/qquicktumbler_p.h>
QT_BEGIN_NAMESPACE
class Q_QUICKTEMPLATES2_PRIVATE_EXPORT QQuickTumblerPrivate : public QQuickControlPrivate, public QQuickItemChangeListener
{
Q_DECLARE_PUBLIC(QQuickTumbler)
public:
enum ContentItemType {
NoContentItem,
UnsupportedContentItemType,
PathViewContentItem,
ListViewContentItem
};
QQuickItem *determineViewType(QQuickItem *contentItem);
void resetViewData();
QList<QQuickItem *> viewContentItemChildItems() const;
static QQuickTumblerPrivate *get(QQuickTumbler *tumbler);
QVariant model;
QQmlComponent *delegate = nullptr;
int visibleItemCount = 5;
bool wrap = true;
bool explicitWrap = false;
bool modelBeingSet = false;
bool currentIndexSetDuringModelChange = false;
QQuickItem *view = nullptr;
QQuickItem *viewContentItem = nullptr;
ContentItemType viewContentItemType = UnsupportedContentItemType;
union {
qreal viewOffset; // PathView
qreal viewContentY; // ListView
};
int currentIndex = -1;
int pendingCurrentIndex = -1;
bool ignoreCurrentIndexChanges = false;
int count = 0;
bool ignoreSignals = false;
void _q_updateItemHeights();
void _q_updateItemWidths();
void _q_onViewCurrentIndexChanged();
void _q_onViewCountChanged();
void _q_onViewOffsetChanged();
void _q_onViewContentYChanged();
void calculateDisplacements();
void disconnectFromView();
void setupViewData(QQuickItem *newControlContentItem);
void syncCurrentIndex();
void setPendingCurrentIndex(int index);
enum PropertyChangeReason {
UserChange,
InternalChange
};
void setCurrentIndex(int newCurrentIndex, PropertyChangeReason changeReason = InternalChange);
void setCount(int newCount);
void setWrapBasedOnCount();
void setWrap(bool shouldWrap, bool isExplicit);
void beginSetModel();
void endSetModel();
void itemChildAdded(QQuickItem *, QQuickItem *) override;
void itemChildRemoved(QQuickItem *, QQuickItem *) override;
void itemGeometryChanged(QQuickItem *, QQuickGeometryChange , const QRectF &) override;
};
class QQuickTumblerAttachedPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QQuickTumblerAttached)
public:
static QQuickTumblerAttachedPrivate *get(QQuickTumblerAttached *attached)
{
return attached->d_func();
}
void init(QQuickItem *delegateItem);
void calculateDisplacement();
void emitIfDisplacementChanged(qreal oldDisplacement, qreal newDisplacement);
// The Tumbler that contains the delegate. Required to calculated the displacement.
QPointer<QQuickTumbler> tumbler;
// The index of the delegate. Used to calculate the displacement.
int index = -1;
// The displacement for our delegate.
qreal displacement = 0;
};
QT_END_NAMESPACE
#endif // QQUICKTUMBLER_P_P_H
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