/* -*- 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/dlgctl3d.hxx>

#include <svx/strings.hrc>

#include <svx/view3d.hxx>

#include <svx/fmmodel.hxx>

#include <svl/itempool.hxx>

#include <svx/fmpage.hxx>

#include <svx/sphere3d.hxx>

#include <svx/cube3d.hxx>

#include <svx/scene3d.hxx>

#include <vcl/svapp.hxx>

#include <svx/helperhittest3d.hxx>

#include <basegfx/polygon/b2dpolygontools.hxx>

#include <polygn3d.hxx>

#include <svx/xfillit0.hxx>

#include <svx/xflclit.hxx>

#include <svx/xlineit0.hxx>

#include <svx/xlnclit.hxx>

#include <svx/xlnwtit.hxx>

#include <helpids.h>

#include <svx/dialmgr.hxx>

#include <tools/helpers.hxx>

#include <vcl/settings.hxx>

using namespace com::sun::star;

Svx3DPreviewControl::Svx3DPreviewControl()

    : mnObjectType(SvxPreviewObjectType::SPHERE)

{

}

void Svx3DPreviewControl::SetDrawingArea(weld::DrawingArea* pDrawingArea)

{

    Size aSize(pDrawingArea->get_ref_device().LogicToPixel(Size(80, 100), MapMode(MapUnit::MapAppFont)));

    pDrawingArea->set_size_request(aSize.Width(), aSize.Height());

    CustomWidgetController::SetDrawingArea(pDrawingArea);

    SetOutputSizePixel(aSize);

    Construct();

}

void Svx3DPreviewControl::ClearPageView()

{

    mp3DView->ClearPageView();

}

Svx3DPreviewControl::~Svx3DPreviewControl()

{

    mp3DObj.clear();

    mxFmPage.clear();

    mpScene.clear();

    mp3DView.reset();

    mpModel.reset();

}

void Svx3DPreviewControl::Construct()

{

    // Do never mirror the preview window.  This explicitly includes right

    // to left writing environments.

    EnableRTL (false);

    OutputDevice& rDevice = GetDrawingArea()->get_ref_device();

    rDevice.SetMapMode(MapMode(MapUnit::Map100thMM));

    // Model

    mpModel.reset(new FmFormModel());

    // Page

    mxFmPage = new FmFormPage( *mpModel );

    mpModel->InsertPage( mxFmPage.get(), 0 );

    // 3D View

    mp3DView.reset(new E3dView(*mpModel, &rDevice));

    mp3DView->SetBufferedOutputAllowed(true);

    mp3DView->SetBufferedOverlayAllowed(true);

    // 3D Scene

    mpScene = new E3dScene(*mpModel);

    // initially create object

    SetObjectType(SvxPreviewObjectType::SPHERE);

    // camera and perspective

    Camera3D rCamera  = mpScene->GetCamera();

    const basegfx::B3DRange& rVolume = mpScene->GetBoundVolume();

    double fW = rVolume.getWidth();

    double fH = rVolume.getHeight();

    double fCamZ = rVolume.getMaxZ() + ((fW + fH) / 2.0);

    rCamera.SetAutoAdjustProjection(false);

    rCamera.SetViewWindow(- fW / 2, - fH / 2, fW, fH);

    basegfx::B3DPoint aLookAt;

    double fDefaultCamPosZ = mp3DView->GetDefaultCamPosZ();

    basegfx::B3DPoint aCamPos(0.0, 0.0, fCamZ < fDefaultCamPosZ ? fDefaultCamPosZ : fCamZ);

    rCamera.SetPosAndLookAt(aCamPos, aLookAt);

    double fDefaultCamFocal = mp3DView->GetDefaultCamFocal();

    rCamera.SetFocalLength(fDefaultCamFocal);

    mpScene->SetCamera( rCamera );

    mxFmPage->InsertObject( mpScene.get() );

    basegfx::B3DHomMatrix aRotation;

    aRotation.rotate(basegfx::deg2rad( 25 ), 0.0, 0.0);

    aRotation.rotate(0.0, basegfx::deg2rad( 40 ), 0.0);

    mpScene->SetTransform(aRotation * mpScene->GetTransform());

    // invalidate SnapRects of objects

    mpScene->SetBoundAndSnapRectsDirty();

    SfxItemSetFixed<XATTR_LINESTYLE, XATTR_LINESTYLE,

        XATTR_FILL_FIRST, XATTR_FILLBITMAP> aSet( mpModel->GetItemPool() );

    aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );

    aSet.Put( XFillStyleItem( drawing::FillStyle_SOLID ) );

    aSet.Put( XFillColorItem( u""_ustr, COL_WHITE ) );

    mpScene->SetMergedItemSet(aSet);

    // PageView

    SdrPageView* pPageView = mp3DView->ShowSdrPage( mxFmPage.get() );

    mp3DView->hideMarkHandles();

    // mark scene

    mp3DView->MarkObj( mpScene.get(), pPageView );

}

void Svx3DPreviewControl::Resize()

{

    // size of page

    Size aSize(GetOutputSizePixel());

    aSize = GetDrawingArea()->get_ref_device().PixelToLogic(aSize);

    mxFmPage->SetSize(aSize);

    // set size

    Size aObjSize( aSize.Width()*5/6, aSize.Height()*5/6 );

    Point aObjPoint( (aSize.Width() - aObjSize.Width()) / 2,

        (aSize.Height() - aObjSize.Height()) / 2);

    tools::Rectangle aRect( aObjPoint, aObjSize);

    mpScene->SetSnapRect( aRect );

}

void Svx3DPreviewControl::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)

{

    mp3DView->CompleteRedraw(&rRenderContext, vcl::Region(rRect));

}

bool Svx3DPreviewControl::MouseButtonDown(const MouseEvent& rMEvt)

{

    if (rMEvt.IsShift() && rMEvt.IsMod1())

    {

        if(SvxPreviewObjectType::SPHERE == GetObjectType())

        {

            SetObjectType(SvxPreviewObjectType::CUBE);

        }

        else

        {

            SetObjectType(SvxPreviewObjectType::SPHERE);

        }

    }

    return false;

}

void Svx3DPreviewControl::SetObjectType(SvxPreviewObjectType nType)

{

    if(mnObjectType == nType && mp3DObj)

        return;

    SfxItemSetFixed<SDRATTR_START, SDRATTR_END> aSet(mpModel->GetItemPool());

    mnObjectType = nType;

    if( mp3DObj )

    {

        aSet.Put(mp3DObj->GetMergedItemSet());

        mpScene->RemoveObject( mp3DObj->GetOrdNum() );

        mp3DObj.clear();

    }

    switch( nType )

    {

        case SvxPreviewObjectType::SPHERE:

        {

            mp3DObj = new E3dSphereObj(

                *mpModel,

                mp3DView->Get3DDefaultAttributes(),

                basegfx::B3DPoint( 0, 0, 0 ),

                basegfx::B3DVector( 5000, 5000, 5000 ));

        }

        break;

        case SvxPreviewObjectType::CUBE:

        {

            mp3DObj = new E3dCubeObj(

                *mpModel,

                mp3DView->Get3DDefaultAttributes(),

                basegfx::B3DPoint( -2500, -2500, -2500 ),

                basegfx::B3DVector( 5000, 5000, 5000 ));

        }

        break;

    }

    if (mp3DObj)

    {

        mpScene->InsertObject( mp3DObj.get() );

        mp3DObj->SetMergedItemSet(aSet);

    }

    Invalidate();

}

SfxItemSet const & Svx3DPreviewControl::Get3DAttributes() const

{

    return mp3DObj->GetMergedItemSet();

}

void Svx3DPreviewControl::Set3DAttributes( const SfxItemSet& rAttr )

{

    mp3DObj->SetMergedItemSet(rAttr, true);

    Resize();

    Invalidate();

}

#define RADIUS_LAMP_PREVIEW_SIZE    (4500.0)

#define RADIUS_LAMP_SMALL           (600.0)

#define RADIUS_LAMP_BIG             (1000.0)

#define NO_LIGHT_SELECTED           (0xffffffff)

#define MAX_NUMBER_LIGHTS              (8)

const sal_Int32 g_nInteractionStartDistance = 5 * 5 * 2;

Svx3DLightControl::Svx3DLightControl()

:   maSelectedLight(NO_LIGHT_SELECTED),

    maLightObjects(MAX_NUMBER_LIGHTS, nullptr),

    mfRotateX(-20.0),

    mfRotateY(45.0),

    mfRotateZ(0.0),

    mfSaveActionStartHor(0.0),

    mfSaveActionStartVer(0.0),

    mfSaveActionStartRotZ(0.0),

    mbMouseMoved(false),

    mbMouseCaptured(false),

    mbGeometrySelected(false)

{

}

void Svx3DLightControl::SetDrawingArea(weld::DrawingArea* pDrawingArea)

{

    Svx3DPreviewControl::SetDrawingArea(pDrawingArea);

    Construct2();

}

void Svx3DLightControl::Construct2()

{

    {

        // hide all page stuff, use control background (normally gray)

        const Color aDialogColor(Application::GetSettings().GetStyleSettings().GetDialogColor());

        mp3DView->SetPageVisible(false);

        mp3DView->SetApplicationBackgroundColor(aDialogColor);

        mp3DView->SetApplicationDocumentColor(aDialogColor);

    }

    {

        // create invisible expansion object

        const double fMaxExpansion(RADIUS_LAMP_BIG + RADIUS_LAMP_PREVIEW_SIZE);

        mpExpansionObject = new E3dCubeObj(

            *mpModel,

            mp3DView->Get3DDefaultAttributes(),

            basegfx::B3DPoint(-fMaxExpansion, -fMaxExpansion, -fMaxExpansion),

            basegfx::B3DVector(2.0 * fMaxExpansion, 2.0 * fMaxExpansion, 2.0 * fMaxExpansion));

        mpScene->InsertObject( mpExpansionObject.get() );

        SfxItemSet aSet(mpModel->GetItemPool());

        aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );

        aSet.Put( XFillStyleItem( drawing::FillStyle_NONE ) );

        mpExpansionObject->SetMergedItemSet(aSet);

    }

    {

        // create lamp control object (Yellow lined object)

        // base circle

        const basegfx::B2DPolygon a2DCircle(basegfx::utils::createPolygonFromCircle(basegfx::B2DPoint(0.0, 0.0), RADIUS_LAMP_PREVIEW_SIZE));

        basegfx::B3DPolygon a3DCircle(basegfx::utils::createB3DPolygonFromB2DPolygon(a2DCircle));

        basegfx::B3DHomMatrix aTransform;

        aTransform.rotate(M_PI_2, 0.0, 0.0);

        aTransform.translate(0.0, -RADIUS_LAMP_PREVIEW_SIZE, 0.0);

        a3DCircle.transform(aTransform);

        // create object for it

        mpLampBottomObject = new E3dPolygonObj(

            *mpModel,

            basegfx::B3DPolyPolygon(a3DCircle));

        mpScene->InsertObject( mpLampBottomObject.get() );

        // half circle with stand

        basegfx::B2DPolygon a2DHalfCircle;

        a2DHalfCircle.append(basegfx::B2DPoint(RADIUS_LAMP_PREVIEW_SIZE, 0.0));

        a2DHalfCircle.append(basegfx::B2DPoint(RADIUS_LAMP_PREVIEW_SIZE, -RADIUS_LAMP_PREVIEW_SIZE));

        a2DHalfCircle.append(basegfx::utils::createPolygonFromEllipseSegment(

            basegfx::B2DPoint(0.0, 0.0), RADIUS_LAMP_PREVIEW_SIZE, RADIUS_LAMP_PREVIEW_SIZE, 2 * M_PI - M_PI_2, M_PI_2));

        basegfx::B3DPolygon a3DHalfCircle(basegfx::utils::createB3DPolygonFromB2DPolygon(a2DHalfCircle));

        // create object for it

        mpLampShaftObject = new E3dPolygonObj(

            *mpModel,

            basegfx::B3DPolyPolygon(a3DHalfCircle));

        mpScene->InsertObject( mpLampShaftObject.get() );

        // initially invisible

        SfxItemSet aSet(mpModel->GetItemPool());

        aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );

        aSet.Put( XFillStyleItem( drawing::FillStyle_NONE ) );

        mpLampBottomObject->SetMergedItemSet(aSet);

        mpLampShaftObject->SetMergedItemSet(aSet);

    }

    {

        // change camera settings

        Camera3D rCamera  = mpScene->GetCamera();

        const basegfx::B3DRange& rVolume = mpScene->GetBoundVolume();

        double fW = rVolume.getWidth();

        double fH = rVolume.getHeight();

        double fCamZ = rVolume.getMaxZ() + ((fW + fH) / 2.0);

        rCamera.SetAutoAdjustProjection(false);

        rCamera.SetViewWindow(- fW / 2, - fH / 2, fW, fH);

        basegfx::B3DPoint aLookAt;

        double fDefaultCamPosZ = mp3DView->GetDefaultCamPosZ();

        basegfx::B3DPoint aCamPos(0.0, 0.0, fCamZ < fDefaultCamPosZ ? fDefaultCamPosZ : fCamZ);

        rCamera.SetPosAndLookAt(aCamPos, aLookAt);

        double fDefaultCamFocal = mp3DView->GetDefaultCamFocal();

        rCamera.SetFocalLength(fDefaultCamFocal);

        mpScene->SetCamera( rCamera );

        basegfx::B3DHomMatrix aNeutral;

        mpScene->SetTransform(aNeutral);

    }

    // invalidate SnapRects of objects

    mpScene->SetBoundAndSnapRectsDirty();

}

void Svx3DLightControl::ConstructLightObjects()

{

    for(sal_uInt32 a(0); a < MAX_NUMBER_LIGHTS; a++)

    {

        // get rid of possible existing light object

        if(maLightObjects[a])

        {

            mpScene->RemoveObject(maLightObjects[a]->GetOrdNum());

            maLightObjects[a] = nullptr;

        }

        if(GetLightOnOff(a))

        {

            const bool bIsSelectedLight(a == maSelectedLight);

            basegfx::B3DVector aDirection(GetLightDirection(a));

            aDirection.normalize();

            aDirection *= RADIUS_LAMP_PREVIEW_SIZE;

            const double fLampSize(bIsSelectedLight ? RADIUS_LAMP_BIG : RADIUS_LAMP_SMALL);

            rtl::Reference<E3dObject> pNewLight = new E3dSphereObj(

                *mpModel,

                mp3DView->Get3DDefaultAttributes(),

                basegfx::B3DPoint( 0, 0, 0 ),

                basegfx::B3DVector( fLampSize, fLampSize, fLampSize));

            mpScene->InsertObject(pNewLight.get());

            basegfx::B3DHomMatrix aTransform;

            aTransform.translate(aDirection.getX(), aDirection.getY(), aDirection.getZ());

            pNewLight->SetTransform(aTransform);

            SfxItemSet aSet(mpModel->GetItemPool());

            aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );

            aSet.Put( XFillStyleItem( drawing::FillStyle_SOLID ) );

            aSet.Put( XFillColorItem(OUString(), GetLightColor(a)));

            pNewLight->SetMergedItemSet(aSet);

            maLightObjects[a] = pNewLight.get();

        }

    }

}

void Svx3DLightControl::AdaptToSelectedLight()

{

    if(NO_LIGHT_SELECTED == maSelectedLight)

    {

        // make mpLampBottomObject/mpLampShaftObject invisible

        SfxItemSet aSet(mpModel->GetItemPool());

        aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );

        aSet.Put( XFillStyleItem( drawing::FillStyle_NONE ) );

        mpLampBottomObject->SetMergedItemSet(aSet);

        mpLampShaftObject->SetMergedItemSet(aSet);

    }

    else

    {

        basegfx::B3DVector aDirection(GetLightDirection(maSelectedLight));

        aDirection.normalize();

        // make mpLampBottomObject/mpLampShaftObject visible (yellow hairline)

        SfxItemSet aSet(mpModel->GetItemPool());

        aSet.Put( XLineStyleItem( drawing::LineStyle_SOLID ) );

        aSet.Put( XLineColorItem(OUString(), COL_YELLOW));

        aSet.Put( XLineWidthItem(0));

        aSet.Put( XFillStyleItem( drawing::FillStyle_NONE ) );

        mpLampBottomObject->SetMergedItemSet(aSet);

        mpLampShaftObject->SetMergedItemSet(aSet);

        // adapt transformation of mpLampShaftObject

        basegfx::B3DHomMatrix aTransform;

        double fRotateY(0.0);

        if(!basegfx::fTools::equalZero(aDirection.getZ()) || !basegfx::fTools::equalZero(aDirection.getX()))

        {

            fRotateY = atan2(-aDirection.getZ(), aDirection.getX());

        }

        aTransform.rotate(0.0, fRotateY, 0.0);

        mpLampShaftObject->SetTransform(aTransform);

        // adapt transformation of selected light

        E3dObject* pSelectedLight = maLightObjects[sal_Int32(maSelectedLight)];

        if(pSelectedLight)

        {

            aTransform.identity();

            aTransform.translate(

                aDirection.getX() * RADIUS_LAMP_PREVIEW_SIZE,

                aDirection.getY() * RADIUS_LAMP_PREVIEW_SIZE,

                aDirection.getZ() * RADIUS_LAMP_PREVIEW_SIZE);

            pSelectedLight->SetTransform(aTransform);

        }

    }

}

void Svx3DLightControl::TrySelection(Point aPosPixel)

{

    if(!mpScene)

        return;

    const Point aPosLogic(GetDrawingArea()->get_ref_device().PixelToLogic(aPosPixel));

    const basegfx::B2DPoint aPoint(aPosLogic.X(), aPosLogic.Y());

    std::vector< const E3dCompoundObject* > aResult;

    getAllHit3DObjectsSortedFrontToBack(aPoint, *mpScene, aResult);

    if(aResult.empty())

        return;

    // exclude expansion object which will be part of

    // the hits. It's invisible, but for HitTest, it's included

    const E3dCompoundObject* pResult = nullptr;

    for(auto const & b: aResult)

    {

        if(b && b != mpExpansionObject.get())

        {

            pResult = b;

            break;

        }

    }

    if(pResult == mp3DObj.get())

    {

        if(!mbGeometrySelected)

        {

            mbGeometrySelected = true;

            maSelectedLight = NO_LIGHT_SELECTED;

            ConstructLightObjects();

            AdaptToSelectedLight();

            Invalidate();

            if(maSelectionChangeCallback.IsSet())

            {

                maSelectionChangeCallback.Call(this);

            }

        }

    }

    else

    {

        sal_uInt32 aNewSelectedLight(NO_LIGHT_SELECTED);

        for(sal_uInt32 a(0); a < MAX_NUMBER_LIGHTS; a++)

        {

            if(maLightObjects[a] && maLightObjects[a] == pResult)

            {

                aNewSelectedLight = a;

            }

        }

        if(aNewSelectedLight != maSelectedLight)

        {

            SelectLight(aNewSelectedLight);

            if(maSelectionChangeCallback.IsSet())

            {

                maSelectionChangeCallback.Call(this);

            }

        }

    }

}

void Svx3DLightControl::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)

{

    Svx3DPreviewControl::Paint(rRenderContext, rRect);

}

tools::Rectangle Svx3DLightControl::GetFocusRect()

{

    if (!HasFocus())

        return tools::Rectangle();

    Size aFocusSize = GetOutputSizePixel();

    aFocusSize.AdjustWidth( -4 );

    aFocusSize.AdjustHeight( -4 );

    return tools::Rectangle(Point(2, 2), aFocusSize);

}

bool Svx3DLightControl::MouseButtonDown( const MouseEvent& rMEvt )

{

    bool bCallParent(true);

    // switch state

    if(rMEvt.IsLeft())

    {

        if(IsSelectionValid() || mbGeometrySelected)

        {

            mbMouseMoved = false;

            bCallParent = false;

            maActionStartPoint = rMEvt.GetPosPixel();

            CaptureMouse();

            mbMouseCaptured = true;

        }

        else

        {

            // Single click without moving much trying to do a selection

            TrySelection(rMEvt.GetPosPixel());

            bCallParent = false;

        }

    }

    // call parent

    if (bCallParent)

        return Svx3DPreviewControl::MouseButtonDown(rMEvt);

    return true;

}

bool Svx3DLightControl::MouseMove(const MouseEvent& rMEvt)

{

    if (!mbMouseCaptured)

        return false;

    Point aDeltaPos = rMEvt.GetPosPixel() - maActionStartPoint;

    if(!mbMouseMoved)

    {

        if(sal_Int32(aDeltaPos.X() * aDeltaPos.X() + aDeltaPos.Y() * aDeltaPos.Y()) > g_nInteractionStartDistance)

        {

            if(mbGeometrySelected)

            {

                GetRotation(mfSaveActionStartVer, mfSaveActionStartHor, mfSaveActionStartRotZ);

            }

            else

            {

                // interaction start, save values

                GetPosition(mfSaveActionStartHor, mfSaveActionStartVer);

            }

            mbMouseMoved = true;

        }

    }

    if(mbMouseMoved)

    {

        if(mbGeometrySelected)

        {

            double fNewRotX = mfSaveActionStartVer - basegfx::deg2rad(aDeltaPos.Y());

            double fNewRotY = mfSaveActionStartHor + basegfx::deg2rad(aDeltaPos.X());

            // cut horizontal

            while(fNewRotY < 0.0)

            {

                fNewRotY += 2 * M_PI;

            }

            while(fNewRotY >= 2 * M_PI)

            {

                fNewRotY -= 2 * M_PI;

            }

            // cut vertical

            if(fNewRotX < -M_PI_2)

            {

                fNewRotX = -M_PI_2;

            }

            if(fNewRotX > M_PI_2)

            {

                fNewRotX = M_PI_2;

            }

            SetRotation(fNewRotX, fNewRotY, mfSaveActionStartRotZ);

            if(maChangeCallback.IsSet())

            {

                maChangeCallback.Call(this);

            }

        }

        else

        {

            // interaction in progress

            double fNewPosHor = mfSaveActionStartHor + static_cast<double>(aDeltaPos.X());

            double fNewPosVer = mfSaveActionStartVer - static_cast<double>(aDeltaPos.Y());

            // cut horizontal

            fNewPosHor = NormAngle360(fNewPosHor);

            // cut vertical

            if(fNewPosVer < -90.0)

            {

                fNewPosVer = -90.0;

            }

            if(fNewPosVer > 90.0)

            {

                fNewPosVer = 90.0;

            }

            SetPosition(fNewPosHor, fNewPosVer);

            if(maChangeCallback.IsSet())

            {

                maChangeCallback.Call(this);

            }

        }

    }

    return true;

}

bool Svx3DLightControl::MouseButtonUp(const MouseEvent& rMEvt)

{

    if (!mbMouseCaptured)

        return false;

    ReleaseMouse();

    mbMouseCaptured = false;

    if (mbMouseMoved)

    {

        // was change interactively

    }

    else

    {

        // simple click without much movement, try selection

        TrySelection(rMEvt.GetPosPixel());

    }

    return true;

}

void Svx3DLightControl::Resize()

{

    // set size of page

    const Size aSize(GetDrawingArea()->get_ref_device().PixelToLogic(GetOutputSizePixel()));

    mxFmPage->SetSize(aSize);

    // set position and size of scene

    mpScene->SetSnapRect(tools::Rectangle(Point(0, 0), aSize));

}

void Svx3DLightControl::SetObjectType(SvxPreviewObjectType nType)

{

    // call parent

    Svx3DPreviewControl::SetObjectType(nType);

    // apply object rotation

    if(mp3DObj)

    {

        basegfx::B3DHomMatrix aObjectRotation;

        aObjectRotation.rotate(mfRotateX, mfRotateY, mfRotateZ);

        mp3DObj->SetTransform(aObjectRotation);

    }

}

bool Svx3DLightControl::IsSelectionValid()

{

    return (NO_LIGHT_SELECTED != maSelectedLight) && GetLightOnOff(maSelectedLight);

}

void Svx3DLightControl::GetPosition(double& rHor, double& rVer)

{

    if(IsSelectionValid())

    {

        basegfx::B3DVector aDirection(GetLightDirection(maSelectedLight));

        aDirection.normalize();

        rHor = basegfx::rad2deg(atan2(-aDirection.getX(), -aDirection.getZ()) + M_PI); // 0..360.0

        rVer = basegfx::rad2deg(atan2(aDirection.getY(), aDirection.getXZLength())); // -90.0..90.0

    }

    if(IsGeometrySelected())

    {

        rHor = basegfx::rad2deg(mfRotateY); // 0..360.0

        rVer = basegfx::rad2deg(mfRotateX); // -90.0..90.0

    }

}

void Svx3DLightControl::SetPosition(double fHor, double fVer)

{

    if(IsSelectionValid())

    {

        // set selected light's direction

        fHor = basegfx::deg2rad(fHor) - M_PI; // -PI..PI

        fVer = basegfx::deg2rad(fVer); // -PI2..PI2

        basegfx::B3DVector aDirection(cos(fVer) * -sin(fHor), sin(fVer), cos(fVer) * -cos(fHor));

        aDirection.normalize();

        if(!aDirection.equal(GetLightDirection(maSelectedLight)))

        {

            // set changed light direction at SdrScene

            SfxItemSet aSet(mpModel->GetItemPool());

            switch(maSelectedLight)

            {

                case 0: aSet.Put(makeSvx3DLightDirection1Item(aDirection)); break;

                case 1: aSet.Put(makeSvx3DLightDirection2Item(aDirection)); break;

                case 2: aSet.Put(makeSvx3DLightDirection3Item(aDirection)); break;

                case 3: aSet.Put(makeSvx3DLightDirection4Item(aDirection)); break;

                case 4: aSet.Put(makeSvx3DLightDirection5Item(aDirection)); break;

                case 5: aSet.Put(makeSvx3DLightDirection6Item(aDirection)); break;

                case 6: aSet.Put(makeSvx3DLightDirection7Item(aDirection)); break;

                default:

                case 7: aSet.Put(makeSvx3DLightDirection8Item(aDirection)); break;

            }

            mpScene->SetMergedItemSet(aSet);

            // correct 3D light's and LampFrame's geometries

            AdaptToSelectedLight();

            Invalidate();

        }

    }

    if(!IsGeometrySelected())

        return;

    if(mfRotateX == fVer && mfRotateY == fHor)

        return;

    mfRotateX = basegfx::deg2rad(fVer);

    mfRotateY = basegfx::deg2rad(fHor);

    if(mp3DObj)

    {

        basegfx::B3DHomMatrix aObjectRotation;

        aObjectRotation.rotate(mfRotateX, mfRotateY, mfRotateZ);

        mp3DObj->SetTransform(aObjectRotation);

        Invalidate();

    }

}

void Svx3DLightControl::SetRotation(double fRotX, double fRotY, double fRotZ)

{

    if(!IsGeometrySelected())

        return;

    if(fRotX == mfRotateX && fRotY == mfRotateY && fRotZ == mfRotateZ)

        return;

    mfRotateX = fRotX;

    mfRotateY = fRotY;

    mfRotateZ = fRotZ;

    if(mp3DObj)

    {

        basegfx::B3DHomMatrix aObjectRotation;

        aObjectRotation.rotate(mfRotateX, mfRotateY, mfRotateZ);

        mp3DObj->SetTransform(aObjectRotation);

        Invalidate();

    }

}

void Svx3DLightControl::GetRotation(double& rRotX, double& rRotY, double& rRotZ)

{

    rRotX = mfRotateX;

    rRotY = mfRotateY;

    rRotZ = mfRotateZ;

}

void Svx3DLightControl::Set3DAttributes( const SfxItemSet& rAttr )

{

    // call parent

    Svx3DPreviewControl::Set3DAttributes(rAttr);

    if(maSelectedLight != NO_LIGHT_SELECTED && !GetLightOnOff(maSelectedLight))

    {

        // selected light is no more active, select new one

        maSelectedLight = NO_LIGHT_SELECTED;

    }

    // local updates

    ConstructLightObjects();

    AdaptToSelectedLight();

    Invalidate();

}

void Svx3DLightControl::SelectLight(sal_uInt32 nLightNumber)

{

    if(nLightNumber > 7)

    {

        nLightNumber = NO_LIGHT_SELECTED;

    }

    if(NO_LIGHT_SELECTED != nLightNumber)

    {

        if(!GetLightOnOff(nLightNumber))

        {

            nLightNumber = NO_LIGHT_SELECTED;

        }

    }

    if(nLightNumber != maSelectedLight)

    {

        maSelectedLight = nLightNumber;

        mbGeometrySelected = false;

        ConstructLightObjects();

        AdaptToSelectedLight();

        Invalidate();

    }

}

bool Svx3DLightControl::GetLightOnOff(sal_uInt32 nNum) const

{

    if(nNum <= 7)

    {

        const SfxItemSet aLightItemSet(Get3DAttributes());

        switch(nNum)

        {

            case 0 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_1).GetValue();

            case 1 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_2).GetValue();

            case 2 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_3).GetValue();

            case 3 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_4).GetValue();

            case 4 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_5).GetValue();

            case 5 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_6).GetValue();

            case 6 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_7).GetValue();

            case 7 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTON_8).GetValue();

        }

    }

    return false;

}

Color Svx3DLightControl::GetLightColor(sal_uInt32 nNum) const

{

    if(nNum <= 7)

    {

        const SfxItemSet aLightItemSet(Get3DAttributes());

        switch(nNum)

        {

            case 0 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_1).GetValue();

            case 1 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_2).GetValue();

            case 2 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_3).GetValue();

            case 3 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_4).GetValue();

            case 4 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_5).GetValue();

            case 5 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_6).GetValue();

            case 6 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_7).GetValue();

            case 7 : return aLightItemSet.Get(SDRATTR_3DSCENE_LIGHTCOLOR_8).GetValue();

        }

    }

    return COL_BLACK;

}

basegfx::B3DVector Svx3DLightControl::GetLightDirection(sal_uInt32 nNum) const

{

    if(nNum <= 7)

    {

        const SfxItemSet aLightItemSet(Get3DAttributes());

        switch(nNum)