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++ // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "qtechniquefilter.h"
++ #include "qtechniquefilter_p.h"
++ #include <Qt3DRender/qfilterkey.h>
++ #include <Qt3DRender/qparameter.h>
++
++ QT_BEGIN_NAMESPACE
++
++
++ namespace Qt3DRender {
++
++ using namespace Qt3DCore;
++
++ QTechniqueFilterPrivate::QTechniqueFilterPrivate()
++ : QFrameGraphNodePrivate()
++ {
++ }
++
++ /*!
++ \class Qt3DRender::QTechniqueFilter
++ \inmodule Qt3DRender
++ \since 5.7
++ \brief A QFrameGraphNode used to select QTechniques to use.
++
++ A Qt3DRender::QTechniqueFilter specifies which techniques are used
++ by the FrameGraph when rendering the entities. QTechniqueFilter specifies
++ a list of Qt3DRender::QFilterKey objects and Qt3DRender::QParameter objects.
++ When QTechniqueFilter is present in the FrameGraph, only the techiques matching
++ the keys in the list are used for rendering. The parameters in the list can be used
++ to set values for shader parameters. The parameters in QTechniqueFilter
++ override parameters in QMaterial, QEffect, QTechnique and QRenderPass, but are overridden
++ by parameters in QRenderPassFilter.
++ */
++
++ /*!
++ \qmltype TechniqueFilter
++ \inqmlmodule Qt3D.Render
++ \nativetype Qt3DRender::QTechniqueFilter
++ \inherits FrameGraphNode
++ \since 5.7
++ \brief A FrameGraphNode used to select used Techniques.
++
++ A TechniqueFilter specifies which techniques are used by the FrameGraph
++ when rendering the entities. TechniqueFilter specifies
++ a list of FilterKey objects and Parameter objects.
++ When TechniqueFilter is present in the FrameGraph, only the techiques matching
++ the keys in list are used for rendering. The parameters in the list can be used
++ to set values for shader parameters. The parameters in TechniqueFilter
++ override parameters in Material, Effect, Technique and RenderPass, but are overridden
++ by parameters in RenderPassFilter.
++ */
++
++ /*!
++ \qmlproperty list<FilterKey> TechniqueFilter::matchAll
++ Holds the list of filterkeys used by the TechiqueFilter
++ */
++
++ /*!
++ \qmlproperty list<Parameter> TechniqueFilter::parameters
++ Holds the list of parameters used by the TechiqueFilter
++ */
++
++ /*!
++ The constructor creates an instance with the specified \a parent.
++ */
++ QTechniqueFilter::QTechniqueFilter(QNode *parent)
++ : QFrameGraphNode(*new QTechniqueFilterPrivate, parent)
++ {
++ }
++
++ /*! \internal */
++ QTechniqueFilter::~QTechniqueFilter()
++ {
++ }
++
++ /*! \internal */
++ QTechniqueFilter::QTechniqueFilter(QTechniqueFilterPrivate &dd, QNode *parent)
++ : QFrameGraphNode(dd, parent)
++ {
++ }
++
++ /*!
++ Returns a vector of the current keys for the filter.
++ */
++ QList<QFilterKey *> QTechniqueFilter::matchAll() const
++ {
++ Q_D(const QTechniqueFilter);
++ return d->m_matchList;
++ }
++
++ /*!
++ Add the \a filterKey to the match vector.
++ */
++ void QTechniqueFilter::addMatch(QFilterKey *filterKey)
++ {
++ Q_ASSERT(filterKey);
++ Q_D(QTechniqueFilter);
++ if (!d->m_matchList.contains(filterKey)) {
++ d->m_matchList.append(filterKey);
++
++ // Ensures proper bookkeeping
++ d->registerDestructionHelper(filterKey, &QTechniqueFilter::removeMatch, d->m_matchList);
++
++ // We need to add it as a child of the current node if it has been declared inline
++ // Or not previously added as a child of the current node so that
++ // 1) The backend gets notified about it's creation
++ // 2) When the current node is destroyed, it gets destroyed as well
++ if (!filterKey->parent())
++ filterKey->setParent(this);
++
++ d->update();
++ }
++ }
++
++ /*!
++ Remove the \a filterKey from the match vector.
++ */
++ void QTechniqueFilter::removeMatch(QFilterKey *filterKey)
++ {
++ Q_ASSERT(filterKey);
++ Q_D(QTechniqueFilter);
++ if (!d->m_matchList.removeOne(filterKey))
++ return;
++ d->update();
++ // Remove bookkeeping connection
++ d->unregisterDestructionHelper(filterKey);
++ }
++
++ /*!
++ Add \a parameter to the vector of parameters that will be passed to the graphics pipeline.
++ */
++ void QTechniqueFilter::addParameter(QParameter *parameter)
++ {
++ Q_ASSERT(parameter);
++ Q_D(QTechniqueFilter);
++ if (!d->m_parameters.contains(parameter)) {
++ d->m_parameters.append(parameter);
++
++ // Ensures proper bookkeeping
++ d->registerDestructionHelper(parameter, &QTechniqueFilter::removeParameter, d->m_parameters);
++
++ // We need to add it as a child of the current node if it has been declared inline
++ // Or not previously added as a child of the current node so that
++ // 1) The backend gets notified about it's creation
++ // 2) When the current node is destroyed, the child parameters get destroyed as well
++ if (!parameter->parent())
++ parameter->setParent(this);
++
++ d->update();
++ }
++ }
++
++ /*!
++ Remove \a parameter from the vector of parameters passed to the graphics pipeline.
++ */
++ void QTechniqueFilter::removeParameter(QParameter *parameter)
++ {
++ Q_ASSERT(parameter);
++ Q_D(QTechniqueFilter);
++ if (!d->m_parameters.removeOne(parameter))
++ return;
++ d->update();
++ // Remove bookkeeping connection
++ d->unregisterDestructionHelper(parameter);
++ }
++
++ /*!
++ Returns the current vector of parameters.
++ */
++ QList<QParameter *> QTechniqueFilter::parameters() const
++ {
++ Q_D(const QTechniqueFilter);
++ return d->m_parameters;
++ }
++
++ } // namespace Qt3DRender
++
++ QT_END_NAMESPACE
++
++ #include "moc_qtechniquefilter.cpp"