qdeclarativegeomapitemgroup.cpp

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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qdeclarativegeomapitemgroup_p.h"
#include "qdeclarativegeomapitembase_p.h"
#include "qdeclarativegeomap_p.h"
 
QT_BEGIN_NAMESPACE
 
QDeclarativeGeoMapItemGroup::QDeclarativeGeoMapItemGroup(QQuickItem *parent)
    : QQuickItem(parent)
{
    connect(this, &QQuickItem::opacityChanged,
            this, &QDeclarativeGeoMapItemGroup::mapItemOpacityChanged);
}
 
QDeclarativeGeoMapItemGroup::~QDeclarativeGeoMapItemGroup()
{
 
}
 
void QDeclarativeGeoMapItemGroup::setParentGroup(QDeclarativeGeoMapItemGroup &parentGroup)
{
    m_parentGroup = &parentGroup;
    connect(m_parentGroup, &QDeclarativeGeoMapItemGroup::mapItemOpacityChanged,
            this, &QDeclarativeGeoMapItemGroup::mapItemOpacityChanged);
}
 
void QDeclarativeGeoMapItemGroup::setQuickMap(QDeclarativeGeoMap *quickMap)
{
    if (!quickMap && m_quickMap)
        m_quickMap->disconnect(this);
    m_quickMap = quickMap;
    if (m_quickMap) {
        onMapSizeChanged();
        connect(m_quickMap, &QQuickItem::widthChanged, this, &QDeclarativeGeoMapItemGroup::onMapSizeChanged);
        connect(m_quickMap, &QQuickItem::heightChanged, this, &QDeclarativeGeoMapItemGroup::onMapSizeChanged);
    }
}
 
QDeclarativeGeoMap *QDeclarativeGeoMapItemGroup::quickMap() const
{
    return m_quickMap;
}
 
qreal QDeclarativeGeoMapItemGroup::mapItemOpacity() const
{
    return ((m_parentGroup) ? m_parentGroup->mapItemOpacity() : 1.0) * opacity();
}
 
void QDeclarativeGeoMapItemGroup::classBegin()
{
    QQuickItem::classBegin();
}
 
void QDeclarativeGeoMapItemGroup::componentComplete()
{
    QQuickItem::componentComplete();
 
    // In certain cases the parent won't be set via the constructor, but rather later on
    // during the instantiation/incubation process.
    // Therefore calling setParentGroup here, when the parent is known.
    // The childrenChanged use case to handle dynamically-added items is currently unsupported.
    const QList<QQuickItem *> &quickKids = childItems();
    for (QQuickItem *k : quickKids) {
        QDeclarativeGeoMapItemGroup *childGroup
                = qobject_cast<QDeclarativeGeoMapItemGroup *>(k);
        if (childGroup) {
            childGroup->setParentGroup(*this);
            continue;
        }
        QDeclarativeGeoMapItemBase *childItem
                = qobject_cast<QDeclarativeGeoMapItemBase *>(k);
        if (childItem) {
            childItem->setParentGroup(*this);
            continue;
        }
    }
}
 
void QDeclarativeGeoMapItemGroup::onMapSizeChanged()
{
    setWidth(m_quickMap->width());
    setHeight(m_quickMap->height());
}
 
QT_END_NAMESPACE