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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D 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 "qcomponent.h"
#include "qcomponent_p.h"
#include "qentity.h"
#include "qentity_p.h"
#include <Qt3DCore/qscenepropertychange.h>
QT_BEGIN_NAMESPACE
namespace Qt3D {
QComponentPrivate::QComponentPrivate(QComponent *qq)
: QNodePrivate(qq)
, m_shareable(true)
, m_enabled(true)
{
}
void QComponentPrivate::addEntity(QEntity *entity)
{
m_entities.append(entity);
// We notify only if we have a QChangeArbiter
if (m_changeArbiter != Q_NULLPTR) {
Q_Q(QComponent);
QScenePropertyChangePtr e(new QScenePropertyChange(ComponentAdded, q));
e->setPropertyName("entity");
e->setValue(QVariant::fromValue(entity->id()));
notifyObservers(e);
}
}
void QComponentPrivate::removeEntity(QEntity *entity)
{
// We notify only if we have a QChangeArbiter
if (m_changeArbiter != Q_NULLPTR) {
Q_Q(QComponent);
QScenePropertyChangePtr e(new QScenePropertyChange(ComponentRemoved, q));
e->setPropertyName("entity");
e->setValue(QVariant::fromValue(entity->id()));
notifyObservers(e);
}
m_entities.removeAll(entity);
}
/*!
Constructs a new QComponent instance with \a parent as the parent.
\note a QComponent should never be instanced directly,
instance one of the subclasses instead.
*/
QComponent::QComponent(QNode *parent)
: QNode(*new QComponentPrivate(this), parent)
{
}
QComponent::~QComponent()
{
Q_FOREACH (QEntity *entity, entities()) {
QEntityPrivate *entityPimpl = dynamic_cast<QEntityPrivate *>(QEntityPrivate::get(entity));
if (entityPimpl)
entityPimpl->m_components.removeAll(this);
}
}
/*!
\return whether the QComponent is shareable across entities or not.
*/
bool QComponent::shareable() const
{
Q_D(const QComponent);
return d->m_shareable;
}
/*!
\returns whether the QComponent is enabled or not.
*/
bool QComponent::isEnabled() const
{
Q_D(const QComponent);
return d->m_enabled;
}
/*!
Set the QComponent to enabled if \a enabled is true.
By default a Qt3D::QComponent is always enabled.
\note the interpretation of what enabled means is aspect-dependent. Even if
enabled is set to false, some aspects may still consider the component in
some manner. This is documented on a class by class basis.
*/
void QComponent::setEnabled(bool enabled)
{
Q_D(QComponent);
if (d->m_enabled != enabled) {
d->m_enabled = enabled;
emit enabledChanged();
}
}
/*!
The QComponent can be shared across several entities if \a shareable is true.
*/
void QComponent::setShareable(bool shareable)
{
Q_D(QComponent);
if (d->m_shareable != shareable) {
d->m_shareable = shareable;
emit shareableChanged();
}
}
void QComponent::copy(const QNode *ref)
{
QNode::copy(ref);
const QComponent *comp = static_cast<const QComponent *>(ref);
setEnabled(comp->isEnabled());
setShareable(comp->shareable());
}
/*!
* \return a QVector containing all the entities that reference this component.
*/
QVector<QEntity *> QComponent::entities() const
{
Q_D(const QComponent);
return d->m_entities;
}
QComponent::QComponent(QComponentPrivate &dd, QNode *parent)
: QNode(dd, parent)
{
}
} // namespace Qt3D
QT_END_NAMESPACE
|
