/* -*- 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 .

 */

#ifndef INCLUDED_OOX_SOURCE_DRAWINGML_DIAGRAM_LAYOUTATOMVISITORBASE_HXX

#define INCLUDED_OOX_SOURCE_DRAWINGML_DIAGRAM_LAYOUTATOMVISITORBASE_HXX

#include "diagram.hxx"

#include "diagramlayoutatoms.hxx"

namespace oox::drawingml {

struct LayoutAtomVisitor

{

    virtual ~LayoutAtomVisitor() {}

    virtual void visit(ConstraintAtom& rAtom) = 0;

    virtual void visit(RuleAtom& rAtom) = 0;

    virtual void visit(AlgAtom& rAtom) = 0;

    virtual void visit(ForEachAtom& rAtom) = 0;

    virtual void visit(ConditionAtom& rAtom) = 0;

    virtual void visit(ChooseAtom& rAtom) = 0;

    virtual void visit(LayoutNode& rAtom) = 0;

    virtual void visit(ShapeAtom& rAtom) = 0;

};

// basic visitor implementation that follows if/else and for-each nodes

// and keeps track of current position in data tree

class LayoutAtomVisitorBase : public LayoutAtomVisitor

{

public:

    LayoutAtomVisitorBase(const Diagram& rDgm, const svx::diagram::Point* pRootPoint) :

        mrDgm(rDgm),

        mpCurrentNode(pRootPoint),

        mnCurrIdx(0),

        mnCurrStep(0),

        mnCurrCnt(0),

        meLookFor(LAYOUT_NODE)

    {}

    void defaultVisit(LayoutAtom const& rAtom);

    using LayoutAtomVisitor::visit;

    virtual void visit(ForEachAtom& rAtom) override;

    virtual void visit(ConditionAtom& rAtom) override;

    virtual void visit(ChooseAtom& rAtom) override;

    virtual void visit(LayoutNode& rAtom) override;

protected:

    const Diagram& mrDgm;

    const svx::diagram::Point* mpCurrentNode;

    sal_Int32 mnCurrIdx;

    sal_Int32 mnCurrStep;

    sal_Int32 mnCurrCnt;

    enum {LAYOUT_NODE, CONSTRAINT, ALGORITHM, RULE} meLookFor;

};

class ShallowPresNameVisitor : public LayoutAtomVisitorBase

{

public:

    explicit ShallowPresNameVisitor(const Diagram& rDgm, const svx::diagram::Point* pRootPoint) :

        LayoutAtomVisitorBase(rDgm, pRootPoint),

        mnCnt(0)

    {}

    using LayoutAtomVisitorBase::visit;

    virtual void visit(ConstraintAtom& rAtom) override;

    virtual void visit(RuleAtom& rAtom) override;

    virtual void visit(AlgAtom& rAtom) override;

    virtual void visit(ForEachAtom& rAtom) override;

    virtual void visit(LayoutNode& rAtom) override;

    virtual void visit(ShapeAtom& rAtom) override;

    size_t getCount() const { return mnCnt; }

private:

    size_t mnCnt;

};

}

#endif

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