/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the Collabora Office 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 .
 */

#pragma once

#include <drawinglayer/drawinglayerdllapi.h>

#include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
#include <basegfx/color/bcolor.hxx>

// BackgroundColorPrimitive2D class

namespace drawinglayer::primitive2d
{
/** BackgroundColorPrimitive2D class

    This primitive is defined to fill the whole visible Viewport with
    the given color (and thus decomposes to a filled polygon). This
    makes it a view-dependent primitive by definition. It only has
    a valid decomposition if a valid Viewport is given in the
    ViewInformation2D at decomposition time.

    It will try to buffer its last decomposition using maLastViewport
    to detect changes in the get2DDecomposition call.
 */
class DRAWINGLAYER_DLLPUBLIC BackgroundColorPrimitive2D final
    : public BufferedDecompositionPrimitive2D
{
private:
    /// the fill color to use
    basegfx::BColor maBColor;
    double mfTransparency;

    /// the last used viewInformation, used from getDecomposition for buffering
    basegfx::B2DRange maLastViewport;

    /// create local decomposition
    virtual Primitive2DReference
    create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const override;

public:
    /// constructor
    explicit BackgroundColorPrimitive2D(const basegfx::BColor& rBColor, double fTransparency = 0);

    /// data read access
    const basegfx::BColor& getBColor() const { return maBColor; }
    double getTransparency() const { return mfTransparency; }

    /// compare operator
    virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;

    /// get B2Drange
    virtual basegfx::B2DRange
    getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;

    /// provide unique ID
    virtual sal_uInt32 getPrimitive2DID() const override;

    /// Override standard getDecomposition call to be view-dependent here
    virtual void
    get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor,
                       const geometry::ViewInformation2D& rViewInformation) const override;
};

} // end of namespace drawinglayer::primitive2d

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