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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtLocation 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 "qgeomapobjectqsgsupport_p.h"
#include <QtLocation/private/qgeomap_p_p.h>
QT_BEGIN_NAMESPACE
static int findMapObject(QGeoMapObject *o, const QList<MapObject> &list)
{
for (int i = 0; i < list.size(); ++i)
{
if (list.at(i).object.data() == o)
return i;
}
return -1;
}
bool QGeoMapObjectQSGSupport::createMapObjectImplementation(QGeoMapObject *obj, QGeoMapPrivate *d)
{
QExplicitlySharedDataPointer<QGeoMapObjectPrivate> pimpl =
QExplicitlySharedDataPointer<QGeoMapObjectPrivate>(d->createMapObjectImplementation(obj));
if (pimpl.constData()) {
bool res = obj->setImplementation(pimpl);
if (res)
emit m_map->sgNodeChanged();
return res;
}
return false;
}
QGeoMapObjectPrivate *QGeoMapObjectQSGSupport::createMapObjectImplementationPrivate(QGeoMapObject *obj)
{
QGeoMapObjectPrivate *res = nullptr;
{
QQSGMapObject *sgo = nullptr;
switch (obj->type()) {
case QGeoMapObject::PolylineType: {
QMapPolylineObjectPrivate &oldImpl = static_cast<QMapPolylineObjectPrivate &>(*obj->implementation());
QMapPolylineObjectPrivateQSG *pimpl =
new QMapPolylineObjectPrivateQSG(oldImpl);
sgo = pimpl;
res = pimpl;
break;
}
case QGeoMapObject::PolygonType: {
QMapPolygonObjectPrivate &oldImpl = static_cast<QMapPolygonObjectPrivate &>(*obj->implementation());
QMapPolygonObjectPrivateQSG *pimpl =
new QMapPolygonObjectPrivateQSG(oldImpl);
sgo = pimpl;
res = pimpl;
break;
}
case QGeoMapObject::CircleType: {
QMapCircleObjectPrivate &oldImpl = static_cast<QMapCircleObjectPrivate &>(*obj->implementation());
QMapCircleObjectPrivateQSG *pimpl =
new QMapCircleObjectPrivateQSG(oldImpl);
sgo = pimpl;
res = pimpl;
break;
}
case QGeoMapObject::RouteType: {
QMapRouteObjectPrivate &oldImpl = static_cast<QMapRouteObjectPrivate &>(*obj->implementation());
QMapRouteObjectPrivateQSG *pimpl =
new QMapRouteObjectPrivateQSG(oldImpl);
sgo = pimpl;
res = pimpl;
break;
}
case QGeoMapObject::IconType: {
QMapIconObjectPrivate &oldImpl = static_cast<QMapIconObjectPrivate &>(*obj->implementation());
QMapIconObjectPrivateQSG *pimpl =
new QMapIconObjectPrivateQSG(oldImpl);
sgo = pimpl;
res = pimpl;
break;
}
default:
// Use the following warning only for debugging purposes.
// qWarning() << "QGeoMapObjectQSGSupport::createMapObjectImplementationPrivate: not instantiating pimpl for unsupported object type " << obj->type();
break;
}
if (res) {
QPointer<QGeoMapObject> p(obj);
MapObject mo(p, sgo);
m_pendingMapObjects << mo;
}
}
return res;
}
QList<QGeoMapObject *> QGeoMapObjectQSGSupport::mapObjects() const
{
QList<QGeoMapObject *> res;
for (int i = 0; i < m_mapObjects.size(); ++i) {
res.append(m_mapObjects.at(i).object.data());
}
return res;
}
void QGeoMapObjectQSGSupport::removeMapObject(QGeoMapObject *obj)
{
int idx = findMapObject(obj, m_mapObjects);
if (idx >= 0) {
const MapObject &mo = m_mapObjects.takeAt(idx);
obj->disconnect(m_map);
m_removedMapObjects << mo;
emit m_map->sgNodeChanged();
} else {
idx = findMapObject(obj, m_pendingMapObjects);
if (idx >= 0) {
m_pendingMapObjects.removeAt(idx);
obj->disconnect(m_map);
} else {
// obj not here.
}
}
}
// called in the render thread
void QGeoMapObjectQSGSupport::updateMapObjects(QSGNode *root, QQuickWindow *window)
{
if (!root)
return;
if (m_mapObjectsRootNode && !m_mapObjectsRootNode->parent())
root->appendChildNode(m_mapObjectsRootNode.get());
if (!m_mapObjectsRootNode) {
m_mapObjectsRootNode = std::make_unique<QDeclarativePolygonMapItemPrivateOpenGL::RootNode>();
root->appendChildNode(m_mapObjectsRootNode.get());
m_mapObjectsRootNode->setFlag(QSGNode::OwnedByParent, false);
}
m_mapObjectsRootNode->removeAllChildNodes();
for (int i = 0; i < m_removedMapObjects.size(); ++i) {
MapObject mo = m_removedMapObjects[i];
if (mo.qsgNode) {
delete mo.qsgNode;
mo.qsgNode = nullptr;
// mo.sgObject is now invalid as it is destroyed right after appending
// mo to m_removedMapObjects
}
}
m_removedMapObjects.clear();
for (int i = 0; i < m_mapObjects.size(); ++i) {
// already added as node
if (Q_UNLIKELY(!m_mapObjects.at(i).object)) {
qWarning() << "unexpected NULL pointer in m_mapObjects at "<<i;
continue;
}
MapObject &mo = m_mapObjects[i];
QQSGMapObject *sgo = mo.sgObject;
QSGNode *oldNode = mo.qsgNode;
mo.qsgNode = sgo->updateMapObjectNode(oldNode, &mo.visibleNode, m_mapObjectsRootNode.get(), window);
if (Q_UNLIKELY(!mo.qsgNode)) {
qWarning() << "updateMapObjectNode for "<<mo.object->type() << " returned NULL";
} else if (mo.visibleNode && (mo.visibleNode->visible() != mo.object->visible())) {
mo.visibleNode->setVisible(mo.object->visible());
mo.qsgNode->markDirty(QSGNode::DirtySubtreeBlocked);
}
}
QList<int> toRemove;
for (int i = 0; i < m_pendingMapObjects.size(); ++i) {
// already added as node
MapObject &mo = m_pendingMapObjects[i];
QQSGMapObject *sgo = mo.sgObject;
QSGNode *oldNode = mo.qsgNode;
sgo->updateGeometry(); // or subtree will be blocked
mo.qsgNode = sgo->updateMapObjectNode(oldNode, &mo.visibleNode, m_mapObjectsRootNode.get(), window);
if (mo.qsgNode) {
if (mo.visibleNode && (mo.visibleNode->visible() != mo.object->visible())) {
mo.visibleNode->setVisible(mo.object->visible());
mo.qsgNode->markDirty(QSGNode::DirtySubtreeBlocked);
}
m_mapObjects << mo;
toRemove.push_front(i);
QObject::connect(mo.object, SIGNAL(visibleChanged()), m_map, SIGNAL(sgNodeChanged()));
} else {
// leave it to be processed, don't spit warnings
}
}
for (int i: qAsConst(toRemove))
m_pendingMapObjects.removeAt(i);
m_mapObjectsRootNode->setSubtreeBlocked(false);
}
// called in GUI thread
void QGeoMapObjectQSGSupport::updateObjectsGeometry()
{
for (int i = 0; i < m_mapObjects.size(); ++i) {
// already added as node
if (Q_UNLIKELY(!m_mapObjects.at(i).object)) {
qWarning() << "unexpected NULL pointer in m_mapObjects at "<<i;
continue;
}
QQSGMapObject *sgo = m_mapObjects.at(i).sgObject;
sgo->updateGeometry();
}
emit m_map->sgNodeChanged();
}
QT_END_NAMESPACE
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