/* -*- 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/ImageMapInfo.hxx>

#include <svx/svdobj.hxx>

#include <svx/svdograf.hxx>

#include <svx/svdoole2.hxx>

#include <vcl/imapobj.hxx>

#include <vcl/svapp.hxx>

#include <vcl/outdev.hxx>

SvxIMapInfo* SvxIMapInfo::GetIMapInfo(SdrObject const* pObject)

{

    assert(pObject);

    SvxIMapInfo* pIMapInfo = nullptr;

    sal_uInt16 nCount = pObject->GetUserDataCount();

    // Can we find IMap information within the user data?

    for (sal_uInt16 i = 0; i < nCount; i++)

    {

        SdrObjUserData* pUserData = pObject->GetUserData(i);

        if ((pUserData->GetInventor() == SdrInventor::StarDrawUserData)

            && (pUserData->GetId() == SVX_IMAPINFO_ID))

            pIMapInfo = static_cast<SvxIMapInfo*>(pUserData);

    }

    return pIMapInfo;

}

IMapObject* SvxIMapInfo::GetHitIMapObject(const SdrObject* pObj, const Point& rWinPoint,

                                          const OutputDevice* pCmpWnd)

{

    SvxIMapInfo* pIMapInfo = GetIMapInfo(pObj);

    IMapObject* pIMapObj = nullptr;

    if (pIMapInfo)

    {

        const MapMode aMap100(MapUnit::Map100thMM);

        Size aGraphSize;

        Point aRelPoint(rWinPoint);

        const ImageMap& rImageMap = pIMapInfo->GetImageMap();

        tools::Rectangle aRect = pObj->GetLogicRect();

        if (pCmpWnd)

        {

            const MapMode& aWndMode = pCmpWnd->GetMapMode();

            aRelPoint = pCmpWnd->LogicToLogic(rWinPoint, &aWndMode, &aMap100);

            aRect = pCmpWnd->LogicToLogic(pObj->GetLogicRect(), &aWndMode, &aMap100);

        }

        bool bObjSupported = false;

        // execute HitTest

        if (auto pGrafObj = dynamic_cast<const SdrGrafObj*>(pObj)) // simple graphics object

        {

            const GeoStat& rGeo = pGrafObj->GetGeoStat();

            std::unique_ptr<SdrGrafObjGeoData> pGeoData(

                static_cast<SdrGrafObjGeoData*>(pGrafObj->GetGeoData().release()));

            // Undo rotation

            if (rGeo.m_nRotationAngle)

                RotatePoint(aRelPoint, aRect.TopLeft(), -rGeo.mfSinRotationAngle,

                            rGeo.mfCosRotationAngle);

            // Undo mirroring

            if (pGeoData->bMirrored)

                aRelPoint.setX(aRect.Right() + aRect.Left() - aRelPoint.X());

            // Undo shearing

            if (rGeo.m_nShearAngle)

                ShearPoint(aRelPoint, aRect.TopLeft(), -rGeo.mfTanShearAngle);

            if (pGrafObj->GetGrafPrefMapMode().GetMapUnit() == MapUnit::MapPixel)

                aGraphSize = Application::GetDefaultDevice()->PixelToLogic(

                    pGrafObj->GetGrafPrefSize(), aMap100);

            else

                aGraphSize = OutputDevice::LogicToLogic(pGrafObj->GetGrafPrefSize(),

                                                        pGrafObj->GetGrafPrefMapMode(), aMap100);

            bObjSupported = true;

        }

        else if (auto pOleObj = dynamic_cast<const SdrOle2Obj*>(pObj)) // OLE object

        {

            aGraphSize = pOleObj->GetOrigObjSize();

            bObjSupported = true;

        }

        // Everything worked out well, thus execute HitTest

        if (bObjSupported)

        {

            // Calculate relative position of mouse cursor

            aRelPoint -= aRect.TopLeft();

            pIMapObj = rImageMap.GetHitIMapObject(aGraphSize, aRect.GetSize(), aRelPoint);

            // We don't care about deactivated objects

            if (pIMapObj && !pIMapObj->IsActive())

                pIMapObj = nullptr;

        }

    }

    return pIMapObj;

}