1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2018 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL3$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPLv3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or later as published by the Free 28 ** Software Foundation and appearing in the file LICENSE.GPL included in 29 ** the packaging of this file. Please review the following information to 30 ** ensure the GNU General Public License version 2.0 requirements will be 31 ** met: http://www.gnu.org/licenses/gpl-2.0.html. 32 ** 33 ** $QT_END_LICENSE$ 34 ** 35 ****************************************************************************/ 36 37 #include "qquickpopupanchors_p.h" 38 #include "qquickpopupanchors_p_p.h" 39 #include "qquickpopup_p_p.h" 40 41 QT_BEGIN_NAMESPACE 42 QQuickPopupAnchors(QQuickPopup * popup)43QQuickPopupAnchors::QQuickPopupAnchors(QQuickPopup *popup) 44 : QObject(*(new QQuickPopupAnchorsPrivate), popup) 45 { 46 Q_D(QQuickPopupAnchors); 47 d->popup = popup; 48 } 49 ~QQuickPopupAnchors()50QQuickPopupAnchors::~QQuickPopupAnchors() 51 { 52 Q_D(const QQuickPopupAnchors); 53 if (d->centerIn) { 54 auto centerInPrivate = QQuickItemPrivate::get(d->centerIn); 55 centerInPrivate->removeItemChangeListener(this, QQuickItemPrivate::Destroyed); 56 } 57 } 58 centerIn() const59QQuickItem *QQuickPopupAnchors::centerIn() const 60 { 61 Q_D(const QQuickPopupAnchors); 62 return d->centerIn; 63 } 64 setCenterIn(QQuickItem * item)65void QQuickPopupAnchors::setCenterIn(QQuickItem *item) 66 { 67 Q_D(QQuickPopupAnchors); 68 if (item == d->centerIn) 69 return; 70 71 if (d->centerIn) { 72 auto centerInPrivate = QQuickItemPrivate::get(d->centerIn); 73 centerInPrivate->removeItemChangeListener(this, QQuickItemPrivate::Destroyed); 74 } 75 76 d->centerIn = item; 77 78 if (d->centerIn) { 79 auto centerInPrivate = QQuickItemPrivate::get(d->centerIn); 80 centerInPrivate->addItemChangeListener(this, QQuickItemPrivate::Destroyed); 81 } 82 83 QQuickPopupPrivate::get(d->popup)->reposition(); 84 85 emit centerInChanged(); 86 } 87 resetCenterIn()88void QQuickPopupAnchors::resetCenterIn() 89 { 90 setCenterIn(nullptr); 91 } 92 itemDestroyed(QQuickItem *)93void QQuickPopupAnchors::itemDestroyed(QQuickItem *) 94 { 95 resetCenterIn(); 96 } 97 98 QT_END_NAMESPACE 99