/* -*- 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/processor2d/processor2dtools.hxx>

#include <vcl/gdimtf.hxx>

#include "vclpixelprocessor2d.hxx"

#include "vclmetafileprocessor2d.hxx"

#include <config_vclplug.h>

#if USE_HEADLESS_CODE

#include <drawinglayer/processor2d/cairopixelprocessor2d.hxx>

#elif defined(_WIN32)

#include <drawinglayer/processor2d/d2dpixelprocessor2d.hxx>

#include <vcl/sysdata.hxx>

#endif

using namespace com::sun::star;

namespace drawinglayer::processor2d

{

std::unique_ptr<BaseProcessor2D> createPixelProcessor2DFromScratch(

    const drawinglayer::geometry::ViewInformation2D& rViewInformation2D,

    sal_uInt32 nPixelWidth,

    sal_uInt32 nPixelHeight,

    bool bUseRGBA)

{

    if (0 == nPixelWidth || 0 == nPixelHeight)

        // error: no size given

        return nullptr;

#if USE_HEADLESS_CODE

    // Linux/Cairo: now globally activated in master. Leave a

    // possibility to deactivate for easy test/request testing

    static bool bUsePrimitiveRenderer(nullptr == std::getenv("DISABLE_SYSTEM_DEPENDENT_PRIMITIVE_RENDERER"));

    if (bUsePrimitiveRenderer)

    {

        // create CairoPixelProcessor2D with given size

        std::unique_ptr<CairoPixelProcessor2D> aRetval(

            std::make_unique<CairoPixelProcessor2D>(

                rViewInformation2D,

                nPixelWidth,

                nPixelHeight,

                bUseRGBA));

        if (aRetval->valid())

            return aRetval;

    }

#endif

    // avoid unused parameter errors

    (void)rViewInformation2D;

    (void)nPixelWidth;

    (void)nPixelHeight;

    (void)bUseRGBA;

    // error: no result when no SDPR supported

    return nullptr;

}

std::unique_ptr<BaseProcessor2D> createPixelProcessor2DFromOutputDevice(

    OutputDevice& rTargetOutDev,

    const drawinglayer::geometry::ViewInformation2D& rViewInformation2D)

{

#if USE_HEADLESS_CODE

    // Linux/Cairo: now globally activated in master. Leave a

    // possibility to deactivate for easy test/request testing

    static bool bUsePrimitiveRenderer(nullptr == std::getenv("DISABLE_SYSTEM_DEPENDENT_PRIMITIVE_RENDERER"));

    if (bUsePrimitiveRenderer)

    {

        // tdf#165061 do not use SDPR when RTL is enabled, SDPR is designed

        // for rendering EditViews and does not support RTL (yet?)

        // tdf#165437 also need to check for HasMirroredGraphics to

        // get *all* mirrorings covered

        const bool bMirrored(rTargetOutDev.IsRTLEnabled() || rTargetOutDev.HasMirroredGraphics());

        if (!bMirrored)

        {

            // create CairoPixelProcessor2D associated with the given

            // OutputDevice

            std::unique_ptr<CairoPixelProcessor2D> aRetval(

                std::make_unique<CairoPixelProcessor2D>(

                    rTargetOutDev,

                    rViewInformation2D));

            if (aRetval->valid())

            {

                return aRetval;

            }

        }

    }

#elif defined(_WIN32)

    // Windows: make dependent on TEST_SYSTEM_PRIMITIVE_RENDERER

    static bool bUsePrimitiveRenderer(nullptr != std::getenv("TEST_SYSTEM_PRIMITIVE_RENDERER"));

    if (bUsePrimitiveRenderer)

    {

        drawinglayer::geometry::ViewInformation2D aViewInformation2D(rViewInformation2D);

        // if mnOutOffX/mnOutOffY is set (a 'hack' to get a cheap additional offset), apply it additionally

        // NOTE: This will also need to take extended size of target device into

        //       consideration, using D2DPixelProcessor2D *will* have to clip

        //       against that. Thus for now this is *not* sufficient (see tdf#163125)

        if(0 != rTargetOutDev.GetOutOffXPixel() || 0 != rTargetOutDev.GetOutOffYPixel())

        {

            basegfx::B2DHomMatrix aTransform(aViewInformation2D.getViewTransformation());

            aTransform.translate(rTargetOutDev.GetOutOffXPixel(), rTargetOutDev.GetOutOffYPixel());

            aViewInformation2D.setViewTransformation(aTransform);

        }

        SystemGraphicsData aData(rTargetOutDev.GetSystemGfxData());

        std::unique_ptr<D2DPixelProcessor2D> aRetval(

            std::make_unique<D2DPixelProcessor2D>(aViewInformation2D, aData.hDC));

        if (aRetval->valid())

            return aRetval;

    }

#endif

    // default: create VclPixelProcessor2D

    // NOTE: Since this uses VCL OutputDevice in the VclPixelProcessor2D

    //       taking care of virtual devices is not needed, OutputDevice

    //       and VclPixelProcessor2D will traditionally take care of it

    return std::make_unique<VclPixelProcessor2D>(rViewInformation2D, rTargetOutDev);

}

std::unique_ptr<BaseProcessor2D> createProcessor2DFromOutputDevice(

    OutputDevice& rTargetOutDev,

    const drawinglayer::geometry::ViewInformation2D& rViewInformation2D)

{

    const GDIMetaFile* pMetaFile = rTargetOutDev.GetConnectMetaFile();

    const bool bOutputToRecordingMetaFile(pMetaFile && pMetaFile->IsRecord()

                                          && !pMetaFile->IsPause());

    if (bOutputToRecordingMetaFile)

    {

        // create MetaFile Vcl-Processor and process

        return std::make_unique<VclMetafileProcessor2D>(rViewInformation2D, rTargetOutDev);

    }

    else

    {

        // create Pixel Vcl-Processor

        return createPixelProcessor2DFromOutputDevice(rTargetOutDev, rViewInformation2D);

    }

}

Bitmap extractBitmapFromBaseProcessor2D(const std::unique_ptr<BaseProcessor2D>& rProcessor)

{

    Bitmap aRetval;

#if USE_HEADLESS_CODE

    // currently only defined for cairo

    CairoPixelProcessor2D* pSource(dynamic_cast<CairoPixelProcessor2D*>(rProcessor.get()));

    if (nullptr != pSource)

        aRetval = pSource->extractBitmap();

#endif

    // avoid unused parameter errors

    (void)rProcessor;

    // default: return empty Bitmap

    return aRetval;

}

} // end of namespace

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