| /**************************************************************************** |
| ** |
| ** 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 |
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| ** 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 <QtQuickTemplates2/private/qquickcontrol_p_p.h> |
| #include <QtQuickTemplates2/private/qquicktumbler_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class Q_QUICKTEMPLATES2_PRIVATE_EXPORT QQuickTumblerPrivate : public QQuickControlPrivate |
| { |
| 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 warnAboutIncorrectContentItem(); |
| void syncCurrentIndex(); |
| void setPendingCurrentIndex(int index); |
| |
| enum PropertyChangeReason { |
| UserChange, |
| InternalChange |
| }; |
| |
| static QString propertyChangeReasonToString(PropertyChangeReason changeReason); |
| |
| 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 |