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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "materialutils.h"
#include "abstractview.h"
#include "nodelistproperty.h"
#include "nodemetainfo.h"
#include "qmlobjectnode.h"
#include "variantproperty.h"
#include <utils/qtcassert.h>
namespace QmlDesigner {
// Assigns given material to a 3D model.
// The assigned material is also inserted into material library if not already there.
// If given material is not valid, first existing material from material library is used,
// or if material library is empty, a new material is created.
// This function should be called only from inside a transaction, as it potentially does many
// changes to model.
void MaterialUtils::assignMaterialTo3dModel(AbstractView *view, const ModelNode &modelNode,
const ModelNode &materialNode)
{
QTC_ASSERT(modelNode.isValid() && modelNode.metaInfo().isQtQuick3DModel(), return);
ModelNode matLib = view->materialLibraryNode();
if (!matLib.isValid())
return;
ModelNode newMaterialNode;
if (materialNode.isValid() && materialNode.metaInfo().isQtQuick3DMaterial()) {
newMaterialNode = materialNode;
} else {
const QList<ModelNode> materials = matLib.directSubModelNodes();
if (materials.size() > 0) {
for (const ModelNode &mat : materials) {
if (mat.metaInfo().isQtQuick3DMaterial()) {
newMaterialNode = mat;
break;
}
}
}
// if no valid material, create a new default material
if (!newMaterialNode.isValid()) {
NodeMetaInfo metaInfo = view->model()->qtQuick3DPrincipledMaterialMetaInfo();
newMaterialNode = view->createModelNode("QtQuick3D.PrincipledMaterial",
metaInfo.majorVersion(),
metaInfo.minorVersion());
newMaterialNode.validId();
}
}
QTC_ASSERT(newMaterialNode.isValid(), return);
VariantProperty matNameProp = newMaterialNode.variantProperty("objectName");
if (matNameProp.value().isNull())
matNameProp.setValue("New Material");
if (!newMaterialNode.hasParentProperty()
|| newMaterialNode.parentProperty() != matLib.defaultNodeListProperty()) {
matLib.defaultNodeListProperty().reparentHere(newMaterialNode);
}
QmlObjectNode(modelNode).setBindingProperty("materials", newMaterialNode.id());
}
} // namespace QmlDesigner
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