/* -*- 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 "layoutatomvisitors.hxx"

#include <drawingml/customshapeproperties.hxx>

#include <sal/log.hxx>

using namespace ::com::sun::star;

using namespace ::com::sun::star::xml::sax;

namespace oox::drawingml

{

void ShapeCreationVisitor::visit(ConstraintAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeCreationVisitor::visit(RuleAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeCreationVisitor::visit(AlgAtom& rAtom)

{

    if (meLookFor == ALGORITHM)

    {

        mpParentShape->setAspectRatio(rAtom.getAspectRatio());

        mpParentShape->setVerticalShapesCount(rAtom.getVerticalShapesCount(mpParentShape));

    }

}

void ShapeCreationVisitor::visit(LayoutNode& rAtom)

{

    if (meLookFor != LAYOUT_NODE)

        return;

    // stop processing if it's not a child of previous LayoutNode

    const DiagramData::PointsNameMap::const_iterator aDataNode

        = mrDgm.getData()->getPointsPresNameMap().find(rAtom.getName());

    if (aDataNode == mrDgm.getData()->getPointsPresNameMap().end()

        || mnCurrIdx >= static_cast<sal_Int32>(aDataNode->second.size()))

        return;

    const svx::diagram::Point* pNewNode = aDataNode->second.at(mnCurrIdx);

    if (!mpCurrentNode || !pNewNode)

        return;

    bool bIsChild = false;

    for (const auto& aConnection : mrDgm.getData()->getConnections())

        if (aConnection.msSourceId == mpCurrentNode->msModelId

            && aConnection.msDestId == pNewNode->msModelId)

            bIsChild = true;

    if (!bIsChild)

        return;

    ShapePtr xCurrParent(mpParentShape);

    if (rAtom.getExistingShape())

    {

        // reuse existing shape

        ShapePtr pShape = rAtom.getExistingShape();

        if (rAtom.setupShape(pShape, pNewNode, mnCurrIdx))

        {

            pShape->setInternalName(rAtom.getName());

            rAtom.addNodeShape(pShape);

            mrDgm.getLayout()->getPresPointShapeMap()[pNewNode] = std::move(pShape);

        }

    }

    else

    {

        ShapeTemplateVisitor aTemplateVisitor(mrDgm, pNewNode);

        aTemplateVisitor.defaultVisit(rAtom);

        ShapePtr pShape = aTemplateVisitor.getShapeCopy();

        if (pShape)

        {

            SAL_INFO("oox.drawingml",

                     "processing shape type "

                         << (pShape->getCustomShapeProperties()->getShapePresetType()));

            if (rAtom.setupShape(pShape, pNewNode, mnCurrIdx))

            {

                pShape->setInternalName(rAtom.getName());

                xCurrParent->addChild(pShape);

                xCurrParent = pShape;

                rAtom.addNodeShape(pShape);

                mrDgm.getLayout()->getPresPointShapeMap()[pNewNode] = std::move(pShape);

            }

        }

        else

        {

            SAL_WARN("oox.drawingml",

                     "ShapeCreationVisitor::visit: no shape set while processing layoutnode named "

                         << rAtom.getName());

        }

    }

    const svx::diagram::Point* pPreviousNode = mpCurrentNode;

    mpCurrentNode = pNewNode;

    // set new parent for children

    ShapePtr xPreviousParent(mpParentShape);

    mpParentShape = std::move(xCurrParent);

    // process children

    meLookFor = LAYOUT_NODE;

    defaultVisit(rAtom);

    meLookFor = ALGORITHM;

    defaultVisit(rAtom);

    meLookFor = LAYOUT_NODE;

    // restore parent

    mpParentShape = std::move(xPreviousParent);

    mpCurrentNode = pPreviousNode;

}

void ShapeCreationVisitor::visit(ShapeAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeTemplateVisitor::visit(ConstraintAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeTemplateVisitor::visit(RuleAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeTemplateVisitor::visit(AlgAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeTemplateVisitor::visit(ForEachAtom& /*rAtom*/)

{

    // stop processing

}

void ShapeTemplateVisitor::visit(LayoutNode& /*rAtom*/)

{

    // stop processing - only traverse Condition/Choose atoms

}

void ShapeTemplateVisitor::visit(ShapeAtom& rAtom)

{

    if (mpShape)

    {

        SAL_WARN("oox.drawingml", "multiple shapes encountered inside LayoutNode");

        return;

    }

    const ShapePtr& pCurrShape(rAtom.getShapeTemplate());

    // TODO(F3): cloned shape shares all properties by reference,

    // don't change them!

    mpShape = std::make_shared<Shape>(pCurrShape);

    // Fill properties have to be changed as sometimes only the presentation node contains the blip

    // fill, unshare those.

    mpShape->cloneFillProperties();

    // add/set ModelID from current node to allow later association

    if (mpCurrentNode)

        mpShape->setDiagramDataModelID(mpCurrentNode->msModelId);

}

void ShapeLayoutingVisitor::visit(ConstraintAtom& rAtom)

{

    if (meLookFor == CONSTRAINT)

        rAtom.parseConstraint(maConstraints, /*bRequireForName=*/true);

}

void ShapeLayoutingVisitor::visit(RuleAtom& rAtom)

{

    if (meLookFor == RULE)

        rAtom.parseRule(maRules);

}

void ShapeLayoutingVisitor::visit(AlgAtom& rAtom)

{

    if (meLookFor == ALGORITHM)

    {

        const PresPointShapeMap aMap

            = rAtom.getLayoutNode().getDiagram().getLayout()->getPresPointShapeMap();

        auto pShape = aMap.find(mpCurrentNode);

        if (pShape != aMap.end())

            rAtom.layoutShape(pShape->second, maConstraints, maRules);

    }

}

void ShapeLayoutingVisitor::visit(LayoutNode& rAtom)

{

    if (meLookFor != LAYOUT_NODE)

        return;

    // stop processing if it's not a child of previous LayoutNode

    const DiagramData::PointsNameMap::const_iterator aDataNode

        = mrDgm.getData()->getPointsPresNameMap().find(rAtom.getName());

    if (aDataNode == mrDgm.getData()->getPointsPresNameMap().end()

        || mnCurrIdx >= static_cast<sal_Int32>(aDataNode->second.size()))

        return;

    const svx::diagram::Point* pNewNode = aDataNode->second.at(mnCurrIdx);

    if (!mpCurrentNode || !pNewNode)

        return;

    bool bIsChild = false;

    for (const auto& aConnection : mrDgm.getData()->getConnections())

        if (aConnection.msSourceId == mpCurrentNode->msModelId

            && aConnection.msDestId == pNewNode->msModelId)

            bIsChild = true;

    if (!bIsChild)

        return;

    size_t nParentConstraintsNumber = maConstraints.size();

    const svx::diagram::Point* pPreviousNode = mpCurrentNode;

    mpCurrentNode = pNewNode;

    // process alg atoms first, nested layout nodes afterwards

    meLookFor = CONSTRAINT;

    defaultVisit(rAtom);

    meLookFor = RULE;

    defaultVisit(rAtom);

    meLookFor = ALGORITHM;

    defaultVisit(rAtom);

    meLookFor = LAYOUT_NODE;

    defaultVisit(rAtom);

    mpCurrentNode = pPreviousNode;

    // delete added constraints, keep parent constraints

    maConstraints.erase(maConstraints.begin() + nParentConstraintsNumber, maConstraints.end());

}

void ShapeLayoutingVisitor::visit(ShapeAtom& /*rAtom*/)

{

    // stop processing

}

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */