/****************************************************************************
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** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
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** This file is part of the Qt3D module of the Qt Toolkit.
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** ensure the GNU Lesser General Public License version 3 requirements
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** 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
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****************************************************************************/

#include <QGuiApplication>

#include <Qt3DCore/QAspectEngine>
#include <Qt3DCore/QCamera>
#include <Qt3DCore/Window>

#include <Qt3DInput/QInputAspect>

#include <Qt3DRenderer/QRenderAspect>
#include <Qt3DRenderer/QFrameGraph>
#include <Qt3DRenderer/QForwardRenderer>

#include "forwardrenderer.h"
#include "examplescene.h"

int main(int argc, char* argv[])
{
    QGuiApplication app(argc, argv);

    Qt3D::Window view;
    Qt3D::QAspectEngine engine;
    engine.registerAspect(new Qt3D::QRenderAspect());
    Qt3D::QInputAspect *input = new Qt3D::QInputAspect;
    engine.registerAspect(input);
    engine.initialize();
    QVariantMap data;
    data.insert(QStringLiteral("surface"), QVariant::fromValue(static_cast<QSurface *>(&view)));
    data.insert(QStringLiteral("eventSource"), QVariant::fromValue(&view));
    engine.setData(data);

    ExampleScene *sceneRoot = new ExampleScene();

    // Scene Camera
    Qt3D::QCamera *basicCamera = new Qt3D::QCamera(sceneRoot);
    basicCamera->setProjectionType(Qt3D::QCameraLens::PerspectiveProjection);
    basicCamera->setAspectRatio(view.width() / view.height());
    basicCamera->setUpVector(QVector3D(0.0f, 1.0f, 0.0f));
    basicCamera->setViewCenter(QVector3D(0.0f, 3.5f, 0.0f));
    basicCamera->setPosition(QVector3D(0.0f, 3.5f, 25.0f));
    // For camera controls
    input->setCamera(basicCamera);

    // Forward Renderer FrameGraph
    Qt3D::QFrameGraph *frameGraph = new Qt3D::QFrameGraph(sceneRoot);
    Qt3D::QForwardRenderer *forwardRenderer = new Qt3D::QForwardRenderer();
    forwardRenderer->setCamera(basicCamera);
    frameGraph->setActiveFrameGraph(forwardRenderer);
    sceneRoot->addComponent(frameGraph);

    engine.setRootEntity(sceneRoot);
    view.show();

    return app.exec();
}