/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <drawinglayer/primitive2d/mediaprimitive2d.hxx>

#include <basegfx/polygon/b2dpolygon.hxx>

#include <basegfx/polygon/b2dpolygontools.hxx>

#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>

#include <utility>

#include <vcl/GraphicObject.hxx>

#include <drawinglayer/primitive2d/graphicprimitive2d.hxx>

#include <drawinglayer/geometry/viewinformation2d.hxx>

#include <drawinglayer/primitive2d/transformprimitive2d.hxx>

#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>

#include <drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx>

namespace drawinglayer::primitive2d

{

        Primitive2DReference MediaPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const

        {

            Primitive2DContainer xRetval;

            xRetval.resize(1);

            // create background object

            basegfx::B2DPolygon aBackgroundPolygon(basegfx::utils::createUnitPolygon());

            aBackgroundPolygon.transform(getTransform());

            const Primitive2DReference xRefBackground(

                new PolyPolygonColorPrimitive2D(

                    basegfx::B2DPolyPolygon(aBackgroundPolygon),

                    getBackgroundColor()));

            xRetval[0] = xRefBackground;

            if(GraphicType::Bitmap == maSnapshot.GetType() || GraphicType::GdiMetafile == maSnapshot.GetType())

            {

                const GraphicObject aGraphicObject(maSnapshot);

                const GraphicAttr aGraphicAttr;

                xRetval.resize(2);

                xRetval[1] = new GraphicPrimitive2D(getTransform(), aGraphicObject, aGraphicAttr);

            }

            if(getDiscreteBorder())

            {

                const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *

                    basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));

                const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());

                basegfx::B2DRange aSourceRange(0.0, 0.0, 1.0, 1.0);

                aSourceRange.transform(getTransform());

                basegfx::B2DRange aDestRange(aSourceRange);

                aDestRange.grow(-0.5 * fDiscreteSize);

                if(basegfx::fTools::equalZero(aDestRange.getWidth()) || basegfx::fTools::equalZero(aDestRange.getHeight()))

                {

                    // shrunk primitive has no content (zero size in X or Y), nothing to display. Still create

                    // invisible content for HitTest and BoundRect

                    const Primitive2DReference xHiddenLines(new HiddenGeometryPrimitive2D(std::move(xRetval)));

                    xRetval = Primitive2DContainer { xHiddenLines, };

                }

                else

                {

                    // create transformation matrix from original range to shrunk range

                    basegfx::B2DHomMatrix aTransform;

                    aTransform.translate(-aSourceRange.getMinX(), -aSourceRange.getMinY());

                    aTransform.scale(aDestRange.getWidth() / aSourceRange.getWidth(), aDestRange.getHeight() / aSourceRange.getHeight());

                    aTransform.translate(aDestRange.getMinX(), aDestRange.getMinY());

                    // add transform primitive

                    xRetval = Primitive2DContainer {

                        new TransformPrimitive2D(aTransform, std::move(xRetval)) // Scaled

                    };

                }

            }

            return new GroupPrimitive2D(std::move(xRetval));

        }

        MediaPrimitive2D::MediaPrimitive2D(

            basegfx::B2DHomMatrix aTransform,

            OUString aURL,

            const basegfx::BColor& rBackgroundColor,

            sal_uInt32 nDiscreteBorder,

            Graphic aSnapshot)

        :   maTransform(std::move(aTransform)),

            maURL(std::move(aURL)),

            maBackgroundColor(rBackgroundColor),

            mnDiscreteBorder(nDiscreteBorder),

            maSnapshot(std::move(aSnapshot))

        {

        }

        bool MediaPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const

        {

            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))

            {

                const MediaPrimitive2D& rCompare = static_cast<const MediaPrimitive2D&>(rPrimitive);

                return (getTransform() == rCompare.getTransform()

                    && maURL == rCompare.maURL

                    && getBackgroundColor() == rCompare.getBackgroundColor()

                    && getDiscreteBorder() == rCompare.getDiscreteBorder()

                    && maSnapshot.IsNone() == rCompare.maSnapshot.IsNone());

            }

            return false;

        }

        basegfx::B2DRange MediaPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const

        {

            basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);

            aRetval.transform(getTransform());

            if(getDiscreteBorder())

            {

                const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *

                    basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));

                const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());

                aRetval.grow(-0.5 * fDiscreteSize);

            }

            return aRetval;

        }

        // provide unique ID

        sal_uInt32 MediaPrimitive2D::getPrimitive2DID() const

        {

            return PRIMITIVE2D_ID_MEDIAPRIMITIVE2D;

        }

} // end of namespace

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