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Diffstat (limited to 'src/templates/qquickswipeview.cpp')
| -rw-r--r-- | src/templates/qquickswipeview.cpp | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/src/templates/qquickswipeview.cpp b/src/templates/qquickswipeview.cpp deleted file mode 100644 index 7698f7cc..00000000 --- a/src/templates/qquickswipeview.cpp +++ /dev/null @@ -1,355 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the Qt Labs Templates 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 <QtLabsTemplates/private/qquickcontainer_p_p.h> - -QT_BEGIN_NAMESPACE - -/*! - \qmltype SwipeView - \inherits Container - \instantiates QQuickSwipeView - \inqmlmodule Qt.labs.controls - \ingroup qtlabscontrols-navigation - \ingroup qtlabscontrols-containers - \brief A swipe view control. - - SwipeView provides a swipe-based navigation model. - - \image qtlabscontrols-swipeview-wireframe.png - - 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 qtlabscontrols-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. - - \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. - - \labs - - \sa TabBar, PageIndicator, {Customizing SwipeView}, {Navigation Controls}, {Container Controls} -*/ - -class QQuickSwipeViewPrivate : public QQuickContainerPrivate -{ - Q_DECLARE_PUBLIC(QQuickSwipeView) - -public: - void resizeItem(QQuickItem *item); - void resizeItems(); - - static QQuickSwipeViewPrivate *get(QQuickSwipeView *view); -}; - -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()) { - qmlInfo(item) << "SwipeView has detected conflicting anchors. Unable to layout the item."; - item->setProperty("_q_QQuickSwipeView_warned", true); - } - - item->setSize(QSizeF(contentItem->width(), contentItem->height())); - } - } -} - -QQuickSwipeViewPrivate *QQuickSwipeViewPrivate::get(QQuickSwipeView *view) -{ - return view->d_func(); -} - -QQuickSwipeView::QQuickSwipeView(QQuickItem *parent) : - QQuickContainer(*(new QQuickSwipeViewPrivate), parent) -{ - setFlag(ItemIsFocusScope); - setActiveFocusOnTab(true); -} - -QQuickSwipeViewAttached *QQuickSwipeView::qmlAttachedProperties(QObject *object) -{ - QQuickItem *item = qobject_cast<QQuickItem *>(object); - if (!item) { - qWarning() << "SwipeView: attached properties must be accessed from within a child item"; - return Q_NULLPTR; - } - - return new QQuickSwipeViewAttached(item); -} - -void QQuickSwipeView::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) -{ - Q_D(QQuickSwipeView); - QQuickContainer::geometryChanged(newGeometry, oldGeometry); - d->resizeItems(); -} - -void QQuickSwipeView::itemAdded(int, 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())); -} - -/*! - \qmlattachedproperty int Qt.labs.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 Qt.labs.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 SwipeView Qt.labs.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. -*/ - -class QQuickSwipeViewAttachedPrivate : public QObjectPrivate, public QQuickItemChangeListener -{ - Q_DECLARE_PUBLIC(QQuickSwipeViewAttached) -public: - QQuickSwipeViewAttachedPrivate(QQuickItem *item) : - item(item), - swipeView(Q_NULLPTR), - index(-1), - isCurrent(false) - { - } - - ~QQuickSwipeViewAttachedPrivate() { - } - - void updateView(QQuickItem *parent); - - void itemChildAdded(QQuickItem *, QQuickItem *) Q_DECL_OVERRIDE; - void itemChildRemoved(QQuickItem *, QQuickItem *) Q_DECL_OVERRIDE; - void itemParentChanged(QQuickItem *, QQuickItem *) Q_DECL_OVERRIDE; - void itemDestroyed(QQuickItem *) Q_DECL_OVERRIDE; - - void updateIndex(); - void updateIsCurrent(); - - void setView(QQuickSwipeView *view); - void setIndex(int i); - void setIsCurrent(bool current); - - QQuickItem *item; - QQuickSwipeView *swipeView; - int index; - // Better to store this so that we don't need to lump its calculation - // together with index's calculation, as it would otherwise need to know - // the old index to know if it should emit the change signal. - bool isCurrent; -}; - -void QQuickSwipeViewAttachedPrivate::updateIndex() -{ - setIndex(swipeView ? QQuickSwipeViewPrivate::get(swipeView)->contentModel->indexOf(item, Q_NULLPTR) : -1); -} - -void QQuickSwipeViewAttachedPrivate::updateIsCurrent() -{ - setIsCurrent(swipeView ? swipeView->currentIndex() == index : false); -} - -void QQuickSwipeViewAttachedPrivate::setView(QQuickSwipeView *view) -{ - if (view == swipeView) - return; - - if (swipeView) { - QQuickItemPrivate *p = QQuickItemPrivate::get(swipeView); - p->removeItemChangeListener(this, QQuickItemPrivate::Children); - - disconnect(swipeView, &QQuickSwipeView::currentIndexChanged, - this, &QQuickSwipeViewAttachedPrivate::updateIsCurrent); - disconnect(swipeView, &QQuickSwipeView::contentChildrenChanged, - this, &QQuickSwipeViewAttachedPrivate::updateIndex); - } - - swipeView = view; - - if (swipeView) { - QQuickItemPrivate *p = QQuickItemPrivate::get(swipeView); - p->addItemChangeListener(this, QQuickItemPrivate::Children); - - connect(swipeView, &QQuickSwipeView::currentIndexChanged, - this, &QQuickSwipeViewAttachedPrivate::updateIsCurrent); - connect(swipeView, &QQuickSwipeView::contentChildrenChanged, - this, &QQuickSwipeViewAttachedPrivate::updateIndex); - } - - Q_Q(QQuickSwipeViewAttached); - emit q->viewChanged(); - - updateIndex(); - updateIsCurrent(); -} - -void QQuickSwipeViewAttachedPrivate::setIsCurrent(bool current) -{ - if (current != isCurrent) { - isCurrent = current; - Q_Q(QQuickSwipeViewAttached); - emit q->isCurrentItemChanged(); - } -} - -void QQuickSwipeViewAttachedPrivate::setIndex(int i) -{ - if (i != index) { - index = i; - Q_Q(QQuickSwipeViewAttached); - emit q->indexChanged(); - } -} - -void QQuickSwipeViewAttachedPrivate::updateView(QQuickItem *parent) -{ - // parent can be, e.g.: - // - The contentItem of a ListView (typically the case) - // - A non-visual or weird type like TestCase, when child items are created from components - // wherein the attached properties are used - // - null, when the item was removed with removeItem() - QQuickSwipeView *view = Q_NULLPTR; - if (parent) { - view = qobject_cast<QQuickSwipeView*>(parent); - if (!view) { - if (parent->parentItem() && parent->parentItem()->property("contentItem").isValid()) { - // The parent is the contentItem of some kind of view. - view = qobject_cast<QQuickSwipeView*>(parent->parentItem()->parentItem()); - } - } - } - - setView(view); -} - -void QQuickSwipeViewAttachedPrivate::itemChildAdded(QQuickItem *, QQuickItem *) -{ - updateIndex(); -} - -void QQuickSwipeViewAttachedPrivate::itemChildRemoved(QQuickItem *, QQuickItem *) -{ - updateIndex(); -} - -void QQuickSwipeViewAttachedPrivate::itemParentChanged(QQuickItem *, QQuickItem *parent) -{ - updateView(parent); -} - -void QQuickSwipeViewAttachedPrivate::itemDestroyed(QQuickItem *item) -{ - QQuickItemPrivate::get(item)->removeItemChangeListener(this, QQuickItemPrivate::Parent | QQuickItemPrivate::Destroyed); -} - -QQuickSwipeViewAttached::QQuickSwipeViewAttached(QQuickItem *item) : - QObject(*(new QQuickSwipeViewAttachedPrivate(item)), item) -{ - Q_D(QQuickSwipeViewAttached); - if (item->parentItem()) - d->updateView(item->parentItem()); - - QQuickItemPrivate *p = QQuickItemPrivate::get(item); - p->addItemChangeListener(d, QQuickItemPrivate::Parent | QQuickItemPrivate::Destroyed); -} - -QQuickSwipeViewAttached::~QQuickSwipeViewAttached() -{ - Q_D(QQuickSwipeViewAttached); - QQuickItem *item = qobject_cast<QQuickItem *>(parent()); - if (item) - QQuickItemPrivate::get(item)->removeItemChangeListener(d, QQuickItemPrivate::Parent | QQuickItemPrivate::Destroyed); -} - -QQuickSwipeView *QQuickSwipeViewAttached::view() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->swipeView; -} - -int QQuickSwipeViewAttached::index() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->index; -} - -bool QQuickSwipeViewAttached::isCurrentItem() const -{ - Q_D(const QQuickSwipeViewAttached); - return d->swipeView ? d->swipeView->currentIndex() == d->index : false; -} - -QT_END_NAMESPACE |