/* -*- 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 <svx/svdviter.hxx>

#include <svx/svdobj.hxx>

#include <svx/svdpage.hxx>

#include <svx/svdmodel.hxx>

#include <svx/svdview.hxx>

#include <svx/svdpagv.hxx>

#include <svx/svdsob.hxx>

static bool ImpCheckPageView(const SdrPage* pPage, const SdrObject* pObject, SdrPageView const* pPV)

{

    if (!pPage)

        return true;

    bool bMaster(pPage->IsMasterPage());

    SdrPage* pPg = pPV->GetPage();

    if (pPg == pPage)

    {

        if (pObject)

        {

            // Looking for an object? First, determine if it visible in

            // this PageView.

            return pObject->isVisibleOnAnyOfTheseLayers(pPV->GetVisibleLayers());

        }

        else

        {

            return true;

        }

    }

    else if (bMaster && (!pObject || !pObject->IsNotVisibleAsMaster()))

    {

        if (pPg->TRG_HasMasterPage())

        {

            SdrPage& rMasterPage = pPg->TRG_GetMasterPage();

            if (&rMasterPage == pPage)

            {

                // the page we're looking for is a master page in this PageView

                if (pObject)

                {

                    // Looking for an object? First, determine if it visible in

                    // this PageView.

                    SdrLayerIDSet aObjLay = pPV->GetVisibleLayers();

                    aObjLay &= pPg->TRG_GetMasterPageVisibleLayers();

                    if (pObject->isVisibleOnAnyOfTheseLayers(aObjLay))

                    {

                        return true;

                    } // else, look at the next master page of this page...

                }

                else

                {

                    return true;

                }

            }

        }

    }

    // master page forbidden or no fitting master page found

    return false;

}

namespace SdrViewIter

{

void ForAllViews(const SdrPage* pPage, std::function<void(SdrView*)> f)

{

    if (!pPage)

        return;

    const SdrModel* pModel = &pPage->getSdrModelFromSdrPage();

    pModel->ForAllListeners([&pPage, &f](SfxListener* pLs) {

        if (!pLs->IsSdrView())

            return false;

        SdrView* pCurrentView = static_cast<SdrView*>(pLs);

        SdrPageView* pPV = pCurrentView->GetSdrPageView();

        if (pPV && ImpCheckPageView(pPage, nullptr, pPV))

        {

            f(pCurrentView);

        }

        return false;

    });

}

void ForAllViews(const SdrObject* pObject, std::function<void(SdrView*)> f)

{

    if (!pObject)

        return;

    const SdrModel* pModel = &pObject->getSdrModelFromSdrObject();

    const SdrPage* pPage = pObject->getSdrPageFromSdrObject();

    if (!pPage)

        return;

    pModel->ForAllListeners([&pPage, &pObject, &f](SfxListener* pLs) {

        if (!pLs->IsSdrView())

            return false;

        SdrView* pCurrentView = static_cast<SdrView*>(pLs);

        SdrPageView* pPV = pCurrentView->GetSdrPageView();

        if (pPV && ImpCheckPageView(pPage, pObject, pPV))

        {

            f(pCurrentView);

        }

        return false;

    });

}

}

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