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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "q3dselement_p.h"
#include "q3dspresentation.h"
QT_BEGIN_NAMESPACE
/*!
\class Q3DSElement
\inmodule 3dstudioruntime2
\since Qt 3D Studio 2.0
\brief Controls a scene object in a Qt 3D Studio presentation.
This class is a convenience class for controlling the properties of a scene
object (such as, model, material, camera, layer) in a Qt 3D Studio
presentation.
\note The functionality of Q3DSElement is equivalent to
Q3DSPresentation::setAttribute(), Q3DSPresentation::getAttribute(), and
Q3DSPresentation::fireEvent().
\sa Q3DSPresentation, Q3DSWidget, Q3DSSurfaceViewer, Q3DSSceneElement
*/
/*!
\internal
*/
Q3DSElement::Q3DSElement(QObject *parent)
: QObject(*new Q3DSElementPrivate, parent)
{
}
/*!
Constructs a Q3DSElement instance controlling the scene object specified by
\a elementPath. An optional \a parent object can be specified. The
constructed instance is automatically associated with the specified \a
presentation. An optional \a parent object can be specified.
*/
Q3DSElement::Q3DSElement(Q3DSPresentation *presentation, const QString &elementPath, QObject *parent)
: QObject(*new Q3DSElementPrivate, parent)
{
Q_D(Q3DSElement);
d->elementPath = elementPath;
d->presentation = presentation;
}
/*!
\internal
*/
Q3DSElement::Q3DSElement(Q3DSElementPrivate &dd, QObject *parent)
: QObject(dd, parent)
{
}
/*!
Destructor.
*/
Q3DSElement::~Q3DSElement()
{
}
/*!
\property Q3DSElement::elementPath
Holds the element path of the presentation element.
An element path refers to an object in the scene either by name or id. The
latter is rarely used in application code since the unique IDs are not
exposed in the Qt 3D Studio application. To refer to an object by id,
prepend \c{#} to the name. Applications will typically refer to objects by
name.
Names are not necessarily unique, however. To access an object with a
non-unique name, the path can be specified, for example,
\c{Scene.Layer.Camera}. Here the right camera object gets chosen even if
the scene contains other layers with the default camera names (for instance
\c{Scene.Layer2.Camera}).
If the object is renamed to a unique name in the Qt 3D Studio application's
Timeline view, the path can be omitted. For example, if the camera in
question was renamed to \c MyCamera, applications can then simply pass \c
MyCamera as the element path.
To access an object in a sub-presentation, prepend the name of the
sub-presentation followed by a colon, for example,
\c{SubPresentationOne:Scene.Layer.Camera}.
*/
QString Q3DSElement::elementPath() const
{
Q_D(const Q3DSElement);
return d->elementPath;
}
void Q3DSElement::setElementPath(const QString &elementPath)
{
Q_D(Q3DSElement);
if (d->elementPath != elementPath) {
d->elementPath = elementPath;
emit elementPathChanged();
}
}
/*!
Returns the current value of an attribute (property) of the scene
object specified by elementPath.
The \a attributeName is the \l{Attribute Names}{scripting name} of the attribute.
*/
QVariant Q3DSElement::getAttribute(const QString &attributeName) const
{
Q_D(const Q3DSElement);
if (d->presentation && !d->elementPath.isEmpty())
return d->presentation->getAttribute(d->elementPath, attributeName);
return QVariant();
}
/*!
Sets the \a value of an attribute (property) of the scene object
specified by elementPath.
The \a attributeName is the \l{Attribute Names}{scripting name} of the attribute.
*/
void Q3DSElement::setAttribute(const QString &attributeName, const QVariant &value)
{
Q_D(Q3DSElement);
if (d->presentation && !d->elementPath.isEmpty())
d->presentation->setAttribute(d->elementPath, attributeName, value);
}
/*!
Dispatches an event with \a eventName on the scene object
specified by elementPath.
Appropriate actions created in Qt 3D Studio or callbacks registered using
the registerForEvent() method in attached (behavior) scripts will be
executed in response to the event.
*/
void Q3DSElement::fireEvent(const QString &eventName)
{
Q_D(Q3DSElement);
if (d->presentation && !d->elementPath.isEmpty())
d->presentation->fireEvent(d->elementPath, eventName);
}
void Q3DSElementPrivate::setPresentation(Q3DSPresentation *pres)
{
presentation = pres;
}
/*!
\qmltype Element
\instantiates Q3DSElement
\inqmlmodule QtStudio3D
\ingroup 3dstudioruntime2
\brief Control type for elements in a Qt 3D Studio presentation.
This type is a convenience type for managing a presentation element.
All methods provided by this type are queued and handled asynchronously before the next
frame is displayed.
\sa Studio3D, Presentation, SceneElement
*/
/*!
\qmlproperty string Element::elementPath
Holds the element path of the presentation element.
This property must be set as part of Element declaration.
You can specify an element of a sub-presentation by adding "SubPresentationId:"
in front of the element path, for example \c{"SubPresentationOne:Scene"}.
*/
/*!
\qmlmethod void Element::setAttribute(string attributeName, variant value)
Sets the \a value of an attribute on an element specified by this instance.
The \a attributeName is the \l{Attribute Names}{scripting name} of the attribute.
The attribute must be preserved for scripting to be set by this function, or else it will fail.
An attribute is preserved if it is either \e{animated}, or
\e{an attribute on a master element that is unlinked and changed per-slide}.
*/
/*!
\qmlmethod void Element::fireEvent(string eventName)
Dispatches an event with \a eventName on the element specified by this instance.
Appropriate actions created in Qt 3D Studio or callbacks registered using the registerForEvent()
method in attached scripts will be executed in response to the event.
*/
/*!
\qmlsignal Element::elementPathChanged(string elementPath)
This signal is emitted when the element path property changes.
The new value is provided in the \a elementPath parameter.
The corresponding handler is \c onElementPathChanged.
*/
QT_END_NAMESPACE
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