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qquickstack.cpp 4.39 KiB
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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Quick Controls module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.  For licensing terms and
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** conditions see http://qt.digia.com/licensing.  For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights.  These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qquickstack_p.h"
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QT_BEGIN_NAMESPACE
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/*!
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    \qmltype Stack
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    \instantiates QQuickStack
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    \inqmlmodule QtQuick.Controls 1.0
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    \ingroup views
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    \brief Provides attached properties for items pushed onto a StackView.
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    The Stack attached property provides information when an item becomes
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    active or inactive through the \l{Stack::status}{Stack.status} property.
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    Status will be \c Stack.Activating when an item is transitioning into
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    being the current item on the screen, and \c Stack.Active once the
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    transition stops. When it leaves the screen, it will be
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    \c Stack.Deactivating, and then \c Stack.Inactive.
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    \sa StackView
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*/
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QQuickStack::QQuickStack(QObject *object)
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    : QObject(object),
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      m_index(-1),
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      m_status(Inactive),
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      m_pageStack(0)
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{
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}
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QQuickStack *QQuickStack::qmlAttachedProperties(QObject *object) { return new QQuickStack(object); } /*! \readonly \qmlproperty int Stack::index This property holds the index of the item inside \l{pageStack}{StackView}, so that \l{StackView::get()}{pageStack.get(index)} will return the item itself. If \l{Stack::pageStack}{pageStack} is \c null, \a index will be \c -1. */ int QQuickStack::index() const { return m_index; } void QQuickStack::setIndex(int index) { if (m_index != index) { m_index = index; emit indexChanged(); } } /*! \readonly \qmlproperty enumeration Stack::status This property holds the status of the item. It can have one of the following values: \list \li \c Stack.Inactive: the item is not visible \li \c Stack.Activating: the item is transitioning into becoming an active item on the stack \li \c Stack.Active: the item is on top of the stack \li \c Stack.Deactivating: the item is transitioning into becoming inactive \endlist */ QQuickStack::Status QQuickStack::status() const { return m_status; } void QQuickStack::setStatus(Status status) { if (m_status != status) { m_status = status; emit statusChanged(); } } /*! \readonly \qmlproperty StackView Stack::pageStack This property holds the StackView the item is in. If the item is not inside a StackView, \a pageStack will be \c null. */ QQuickItem *QQuickStack::pageStack() const { return m_pageStack; } void QQuickStack::setStackView(QQuickItem *pageStack) { if (m_pageStack != pageStack) { m_pageStack = pageStack; emit pageStackChanged(); } }
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QT_END_NAMESPACE