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Diffstat (limited to 'src/quickcontrols2impl/qquickitemgroup.cpp')
-rw-r--r-- | src/quickcontrols2impl/qquickitemgroup.cpp | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/src/quickcontrols2impl/qquickitemgroup.cpp b/src/quickcontrols2impl/qquickitemgroup.cpp deleted file mode 100644 index c4307001..00000000 --- a/src/quickcontrols2impl/qquickitemgroup.cpp +++ /dev/null @@ -1,122 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the Qt Quick Controls 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 "qquickitemgroup_p.h" - -#include <QtQuick/private/qquickimplicitsizeitem_p_p.h> - -QT_BEGIN_NAMESPACE - -QQuickItemGroup::QQuickItemGroup(QQuickItem *parent) - : QQuickImplicitSizeItem(*(new QQuickImplicitSizeItemPrivate), parent) -{ -} - -QQuickItemGroup::~QQuickItemGroup() -{ - const auto children = childItems(); - for (QQuickItem *child : children) - unwatch(child); -} - -void QQuickItemGroup::watch(QQuickItem *item) -{ - QQuickItemPrivate::get(item)->addItemChangeListener(this, QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight); -} - -void QQuickItemGroup::unwatch(QQuickItem *item) -{ - QQuickItemPrivate::get(item)->removeItemChangeListener(this, QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight); -} - -QSizeF QQuickItemGroup::calculateImplicitSize() const -{ - qreal width = 0; - qreal height = 0; - const auto children = childItems(); - for (QQuickItem *child : children) { - width = qMax(width, child->implicitWidth()); - height = qMax(height, child->implicitHeight()); - } - return QSizeF(width, height); -} - -void QQuickItemGroup::updateImplicitSize() -{ - QSizeF size = calculateImplicitSize(); - setImplicitSize(size.width(), size.height()); -} - -void QQuickItemGroup::itemChange(ItemChange change, const ItemChangeData &data) -{ - QQuickImplicitSizeItem::itemChange(change, data); - switch (change) { - case ItemChildAddedChange: - watch(data.item); - data.item->setSize(QSizeF(width(), height())); - updateImplicitSize(); - break; - case ItemChildRemovedChange: - unwatch(data.item); - updateImplicitSize(); - break; - default: - break; - } -} - -void QQuickItemGroup::geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) -{ - QQuickImplicitSizeItem::geometryChange(newGeometry, oldGeometry); - - if (newGeometry.size() != oldGeometry.size()) { - const auto children = childItems(); - for (QQuickItem *child : children) - child->setSize(newGeometry.size()); - } -} - -void QQuickItemGroup::itemImplicitWidthChanged(QQuickItem *) -{ - setImplicitWidth(calculateImplicitSize().width()); -} - -void QQuickItemGroup::itemImplicitHeightChanged(QQuickItem *) -{ - setImplicitHeight(calculateImplicitSize().height()); -} - -QT_END_NAMESPACE |