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#include <QtCore/QDebug>

#include <Qt3DQuickRender/private/quick3dtexture_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DRender {
namespace Render {
namespace Quick {

Quick3DTextureExtension::Quick3DTextureExtension(QObject *parent)
    : QObject(parent)
{
}

QQmlListProperty<QAbstractTextureImage> Quick3DTextureExtension::textureImages()
{
    return QQmlListProperty<QAbstractTextureImage>(this, 0,
                                                   &Quick3DTextureExtension::appendTextureImage,
                                                   &Quick3DTextureExtension::textureImageCount,
                                                   &Quick3DTextureExtension::textureImageAt,
                                                   &Quick3DTextureExtension::clearTextureImageList);
}

void Quick3DTextureExtension::appendTextureImage(QQmlListProperty<QAbstractTextureImage> *list, QAbstractTextureImage *textureImage)
{
    Quick3DTextureExtension *self = qobject_cast<Quick3DTextureExtension *>(list->object);
    if (self)
        self->parentTexture()->addTextureImage(textureImage);
}

QAbstractTextureImage *Quick3DTextureExtension::textureImageAt(QQmlListProperty<QAbstractTextureImage> *list, int index)
{
    Quick3DTextureExtension *self = qobject_cast<Quick3DTextureExtension *>(list->object);
    if (self)
        return self->parentTexture()->textureImages().at(index);
    return nullptr;
}

int Quick3DTextureExtension::textureImageCount(QQmlListProperty<QAbstractTextureImage> *list)
{
    Quick3DTextureExtension *self = qobject_cast<Quick3DTextureExtension *>(list->object);
    if (self)
        return self->parentTexture()->textureImages().count();
    return 0;
}

void Quick3DTextureExtension::clearTextureImageList(QQmlListProperty<QAbstractTextureImage> *list)
{
    if (Quick3DTextureExtension *self = qobject_cast<Quick3DTextureExtension *>(list->object)) {
        const auto images = self->parentTexture()->textureImages();
        for (QAbstractTextureImage *img : images)
            self->parentTexture()->removeTextureImage(img);
    }
}

} // namespace Quick
} // namespace Render
} // namespace Qt3DRender

QT_END_NAMESPACE