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Diffstat (limited to 'src/quicktemplates2/qquickswipeview.cpp')
| -rw-r--r-- | src/quicktemplates2/qquickswipeview.cpp | 478 |
1 files changed, 0 insertions, 478 deletions
diff --git a/src/quicktemplates2/qquickswipeview.cpp b/src/quicktemplates2/qquickswipeview.cpp deleted file mode 100644 index b9cc68d2..00000000 --- a/src/quicktemplates2/qquickswipeview.cpp +++ /dev/null @@ -1,478 +0,0 @@ -/**************************************************************************** -** -** 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qquickswipeview_p.h" - -#include <QtQml/qqmlinfo.h> -#include <QtQuickTemplates2/private/qquickcontainer_p_p.h> - -QT_BEGIN_NAMESPACE - -/*! - \qmltype SwipeView - \inherits Container -//! \instantiates QQuickSwipeView - \inqmlmodule QtQuick.Controls - \since 5.7 - \ingroup qtquickcontrols2-navigation - \ingroup qtquickcontrols2-containers - \ingroup qtquickcontrols2-focusscopes - \brief Enables the user to navigate pages by swiping sideways. - - SwipeView provides a swipe-based navigation model. - - \image qtquickcontrols2-swipeview.gif - - SwipeView is populated with a set of pages. One page is visible at a time. - The user can navigate between the pages by swiping sideways. Notice that - SwipeView itself is entirely non-visual. It is recommended to combine it - with PageIndicator, to give the user a visual clue that there are multiple - pages. - - \snippet qtquickcontrols2-swipeview-indicator.qml 1 - - As shown above, SwipeView is typically populated with a static set of - pages that are defined inline as children of the view. It is also possible - to \l {Container::addItem()}{add}, \l {Container::insertItem()}{insert}, - \l {Container::moveItem()}{move}, and \l {Container::removeItem()}{remove} - pages dynamically at run time. - - It is generally not advisable to add excessive amounts of pages to a - SwipeView. However, when the amount of pages grows larger, or individual - pages are relatively complex, it may be desirable to free up resources by - unloading pages that are outside the immediate reach of the user. - The following example presents how to use \l Loader to keep a maximum of - three pages simultaneously instantiated. - - \code - SwipeView { - Repeater { - model: 6 - Loader { - active: SwipeView.isCurrentItem || SwipeView.isNextItem || SwipeView.isPreviousItem - sourceComponent: Text { - text: index - Component.onCompleted: console.log("created:", index) - Component.onDestruction: console.log("destroyed:", index) - } - } - } - } - \endcode - - \note SwipeView takes over the geometry management of items added to the - view. Using anchors on the items is not supported, and any \c width - or \c height assignment will be overridden by the view. Notice that - this only applies to the root of the item. Specifying width and height, - or using anchors for its children works as expected. - - \sa TabBar, PageIndicator, {Customizing SwipeView}, {Navigation Controls}, {Container Controls}, - {Focus Management in Qt Quick Controls} -*/ - -class QQuickSwipeViewPrivate : public QQuickContainerPrivate -{ - Q_DECLARE_PUBLIC(QQuickSwipeView) - -public: - void resizeItem(QQuickItem *item); - void resizeItems(); - - static QQuickSwipeViewPrivate *get(QQuickSwipeView *view); - - void itemImplicitWidthChanged(QQuickItem *item) override; - void itemImplicitHeightChanged(QQuickItem *item) override; - - qreal getContentWidth() const override; - qreal getContentHeight() const override; - - bool interactive = true; - Qt::Orientation orientation = Qt::Horizontal; -}; - -class QQuickSwipeViewAttachedPrivate : public QObjectPrivate -{ - Q_DECLARE_PUBLIC(QQuickSwipeViewAttached) - -public: - static QQuickSwipeViewAttachedPrivate *get(QQuickSwipeViewAttached *attached) - { - return attached->d_func(); - } - - void update(QQuickSwipeView *newView, int newIndex); - void updateCurrentIndex(); - void setCurrentIndex(int i); - - QQuickSwipeView *swipeView = nullptr; - int index = -1; - int currentIndex = -1; -}; - -void QQuickSwipeViewPrivate::resizeItems() -{ - Q_Q(QQuickSwipeView); - const int count = q->count(); - for (int i = 0; i < count; ++i) { - QQuickItem *item = itemAt(i); - if (item) { - QQuickAnchors *anchors = QQuickItemPrivate::get(item)->_anchors; - // TODO: expose QQuickAnchorLine so we can test for other conflicting anchors - if (anchors && (anchors->fill() || anchors->centerIn()) && !item->property("_q_QQuickSwipeView_warned").toBool()) { - qmlWarning(item) << "SwipeView has detected conflicting anchors. Unable to layout the item."; - item->setProperty("_q_QQuickSwipeView_warned", true); - } - - if (orientation == Qt::Horizontal) - item->setY(0); - else - item->setX(0); - item->setSize(QSizeF(contentItem->width(), contentItem->height())); - } - } -} - -QQuickSwipeViewPrivate *QQuickSwipeViewPrivate::get(QQuickSwipeView *view) -{ - return view->d_func(); -} - -void QQuickSwipeViewPrivate::itemImplicitWidthChanged(QQuickItem *item) -{ - Q_Q(QQuickSwipeView); - QQuickContainerPrivate::itemImplicitWidthChanged(item); - if (item == q->currentItem()) - updateImplicitContentWidth(); -} - -void QQuickSwipeViewPrivate::itemImplicitHeightChanged(QQuickItem *item) -{ - Q_Q(QQuickSwipeView); - QQuickContainerPrivate::itemImplicitHeightChanged(item); - if (item == q->currentItem()) - updateImplicitContentHeight(); -} - -qreal QQuickSwipeViewPrivate::getContentWidth() const -{ - Q_Q(const QQuickSwipeView); - QQuickItem *currentItem = q->currentItem(); - return currentItem ? currentItem->implicitWidth() : 0; -} - -qreal QQuickSwipeViewPrivate::getContentHeight() const -{ - Q_Q(const QQuickSwipeView); - QQuickItem *currentItem = q->currentItem(); - return currentItem ? currentItem->implicitHeight() : 0; -} - -QQuickSwipeView::QQuickSwipeView(QQuickItem *parent) - : QQuickContainer(*(new QQuickSwipeViewPrivate), parent) -{ - Q_D(QQuickSwipeView); - d->changeTypes |= QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight; - setFlag(ItemIsFocusScope); - setActiveFocusOnTab(true); - QObjectPrivate::connect(this, &QQuickContainer::currentItemChanged, d, &QQuickControlPrivate::updateImplicitContentSize); -} - -/*! - \since QtQuick.Controls 2.1 (Qt 5.8) - \qmlproperty bool QtQuick.Controls::SwipeView::interactive - - This property describes whether the user can interact with the SwipeView. - The user cannot swipe a view that is not interactive. - - The default value is \c true. -*/ -bool QQuickSwipeView::isInteractive() const -{ - Q_D(const QQuickSwipeView); - return d->interactive; -} - -void QQuickSwipeView::setInteractive(bool interactive) -{ - Q_D(QQuickSwipeView); - if (d->interactive == interactive) - return; - - d->interactive = interactive; - emit interactiveChanged(); -} - -/*! - \since QtQuick.Controls 2.2 (Qt 5.9) - \qmlproperty enumeration QtQuick.Controls::SwipeView::orientation - - This property holds the orientation. - - Possible values: - \value Qt.Horizontal Horizontal (default) - \value Qt.Vertical Vertical - - \sa horizontal, vertical -*/ -Qt::Orientation QQuickSwipeView::orientation() const -{ - Q_D(const QQuickSwipeView); - return d->orientation; -} - -void QQuickSwipeView::setOrientation(Qt::Orientation orientation) -{ - Q_D(QQuickSwipeView); - if (d->orientation == orientation) - return; - - d->orientation = orientation; - if (isComponentComplete()) - d->resizeItems(); - emit orientationChanged(); -} - -/*! - \since QtQuick.Controls 2.3 (Qt 5.10) - \qmlproperty bool QtQuick.Controls::SwipeView::horizontal - \readonly - - This property holds whether the swipe view is horizontal. - - \sa orientation -*/ -bool QQuickSwipeView::isHorizontal() const -{ - Q_D(const QQuickSwipeView); - return d->orientation == Qt::Horizontal; -} - -/*! - \since QtQuick.Controls 2.3 (Qt 5.10) - \qmlproperty bool QtQuick.Controls::SwipeView::vertical - \readonly - - This property holds whether the swipe view is vertical. - - \sa orientation -*/ -bool QQuickSwipeView::isVertical() const -{ - Q_D(const QQuickSwipeView); - return d->orientation == Qt::Vertical; -} - -QQuickSwipeViewAttached *QQuickSwipeView::qmlAttachedProperties(QObject *object) -{ - return new QQuickSwipeViewAttached(object); -} - -void QQuickSwipeView::geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) -{ - Q_D(QQuickSwipeView); - QQuickContainer::geometryChange(newGeometry, oldGeometry); - d->resizeItems(); -} - -void QQuickSwipeView::itemAdded(int index, QQuickItem *item) -{ - Q_D(QQuickSwipeView); - QQuickItemPrivate::get(item)->setCulled(true); // QTBUG-51078, QTBUG-51669 - if (isComponentComplete()) - item->setSize(QSizeF(d->contentItem->width(), d->contentItem->height())); - QQuickSwipeViewAttached *attached = qobject_cast<QQuickSwipeViewAttached *>(qmlAttachedPropertiesObject<QQuickSwipeView>(item)); - if (attached) - QQuickSwipeViewAttachedPrivate::get(attached)->update(this, index); -} - -void QQuickSwipeView::itemMoved(int index, QQuickItem *item) -{ - QQuickSwipeViewAttached *attached = qobject_cast<QQuickSwipeViewAttached *>(qmlAttachedPropertiesObject<QQuickSwipeView>(item)); - if (attached) - QQuickSwipeViewAttachedPrivate::get(attached)->update(this, index); -} - -void QQuickSwipeView::itemRemoved(int, QQuickItem *item) -{ - QQuickSwipeViewAttached *attached = qobject_cast<QQuickSwipeViewAttached *>(qmlAttachedPropertiesObject<QQuickSwipeView>(item)); - if (attached) - QQuickSwipeViewAttachedPrivate::get(attached)->update(nullptr, -1); -} - -#if QT_CONFIG(accessibility) -QAccessible::Role QQuickSwipeView::accessibleRole() const -{ - return QAccessible::PageTabList; -} -#endif - -/*! - \qmlattachedproperty int QtQuick.Controls::SwipeView::index - \readonly - - This attached property holds the index of each child item in the SwipeView. - - It is attached to each child item of the SwipeView. -*/ - -/*! - \qmlattachedproperty bool QtQuick.Controls::SwipeView::isCurrentItem - \readonly - - This attached property is \c true if this child is the current item. - - It is attached to each child item of the SwipeView. -*/ - -/*! - \qmlattachedproperty bool QtQuick.Controls::SwipeView::isNextItem - \since QtQuick.Controls 2.1 (Qt 5.8) - \readonly - - This attached property is \c true if this child is the next item. - - It is attached to each child item of the SwipeView. -*/ - -/*! - \qmlattachedproperty bool QtQuick.Controls::SwipeView::isPreviousItem - \since QtQuick.Controls 2.1 (Qt 5.8) - \readonly - - This attached property is \c true if this child is the previous item. - - It is attached to each child item of the SwipeView. -*/ - -/*! - \qmlattachedproperty SwipeView QtQuick.Controls::SwipeView::view - \readonly - - This attached property holds the view that manages this child item. - - It is attached to each child item of the SwipeView. -*/ - -void QQuickSwipeViewAttachedPrivate::updateCurrentIndex() -{ - setCurrentIndex(swipeView ? swipeView->currentIndex() : -1); -} - -void QQuickSwipeViewAttachedPrivate::setCurrentIndex(int i) -{ - if (i == currentIndex) - return; - - Q_Q(QQuickSwipeViewAttached); - const bool wasCurrent = q->isCurrentItem(); - const bool wasNext = q->isNextItem(); - const bool wasPrevious = q->isPreviousItem(); - - currentIndex = i; - if (wasCurrent != q->isCurrentItem()) - emit q->isCurrentItemChanged(); - if (wasNext != q->isNextItem()) - emit q->isNextItemChanged(); - if (wasPrevious != q->isPreviousItem()) - emit q->isPreviousItemChanged(); -} - -void QQuickSwipeViewAttachedPrivate::update(QQuickSwipeView *newView, int newIndex) -{ - Q_Q(QQuickSwipeViewAttached); - int oldIndex = index; - QQuickSwipeView *oldView = swipeView; - - index = newIndex; - swipeView = newView; - - if (oldView != newView) { - if (oldView) { - disconnect(oldView, &QQuickSwipeView::currentIndexChanged, - this, &QQuickSwipeViewAttachedPrivate::updateCurrentIndex); - } - if (newView) { - connect(newView, &QQuickSwipeView::currentIndexChanged, - this, &QQuickSwipeViewAttachedPrivate::updateCurrentIndex); - } - emit q->viewChanged(); - } - if (oldIndex != newIndex) - emit q->indexChanged(); - - updateCurrentIndex(); -} - -QQuickSwipeViewAttached::QQuickSwipeViewAttached(QObject *parent) - : QObject(*(new QQuickSwipeViewAttachedPrivate), parent) -{ - if (!qobject_cast<QQuickItem *>(parent)) - qmlWarning(parent) << "SwipeView: attached properties must be accessed from within a child item"; -} - -int QQuickSwipeViewAttached::index() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->index; -} - -bool QQuickSwipeViewAttached::isCurrentItem() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->index != -1 && d->currentIndex != -1 && d->index == d->currentIndex; -} - -QQuickSwipeView *QQuickSwipeViewAttached::view() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->swipeView; -} - -bool QQuickSwipeViewAttached::isNextItem() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->index != -1 && d->currentIndex != -1 && d->index == d->currentIndex + 1; -} - -bool QQuickSwipeViewAttached::isPreviousItem() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->index != -1 && d->currentIndex != -1 && d->index == d->currentIndex - 1; -} - -QT_END_NAMESPACE - -#include "moc_qquickswipeview_p.cpp" |