/* -*- 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 <scitems.hxx>

#include <editeng/eeitem.hxx>

#include <officecfg/Office/Common.hxx>

#include <svtools/colorcfg.hxx>

#include <svx/fmview.hxx>

#include <editeng/sizeitem.hxx>

#include <svx/svdpagv.hxx>

#include <sfx2/bindings.hxx>

#include <sfx2/viewfrm.hxx>

#include <sfx2/dispatch.hxx>

#include <svl/itemset.hxx>

#include <tools/multisel.hxx>

#include <vcl/commandevent.hxx>

#include <vcl/ptrstyle.hxx>

#include <vcl/settings.hxx>

#include <o3tl/deleter.hxx>

#include <o3tl/unit_conversion.hxx>

#include <preview.hxx>

#include <prevwsh.hxx>

#include <prevloc.hxx>

#include <docsh.hxx>

#include <docfunc.hxx>

#include <printfun.hxx>

#include <printopt.hxx>

#include <stlpool.hxx>

#include <undostyl.hxx>

#include <drwlayer.hxx>

#include <scmod.hxx>

#include <markdata.hxx>

#include <globstr.hrc>

#include <scresid.hxx>

#include <sc.hrc>

#include <helpids.h>

#include <AccessibleDocumentPagePreview.hxx>

#include <editeng/lrspitem.hxx>

#include <editeng/ulspitem.hxx>

#include <editeng/colritem.hxx>

#include <editeng/fhgtitem.hxx>

#include <com/sun/star/accessibility/XAccessible.hpp>

#include <AccessibilityHints.hxx>

#include <vcl/svapp.hxx>

#include <viewutil.hxx>

#include <patattr.hxx>

#include <columnspanset.hxx>

#include <memory>

#define SC_PREVIEW_SHADOWSIZE   2

static tools::Long lcl_GetDisplayStart( SCTAB nTab, const ScDocument* pDoc, std::vector<tools::Long>& nPages )

{

    tools::Long nDisplayStart = 0;

    for (SCTAB i=0; i<nTab; i++)

    {

        if ( pDoc->NeedPageResetAfterTab(i) )

            nDisplayStart = 0;

        else

            nDisplayStart += nPages[i];

    }

    return nDisplayStart;

}

ScPreview::ScPreview( vcl::Window* pParent, ScDocShell* pDocSh, ScPreviewShell* pViewSh ) :

    Window( pParent ),

    nPageNo( 0 ),

    nZoom( 100 ),

    nTabCount( 0 ),

    nTabsTested( 0 ),

    nTab( 0 ),

    nTabPage( 0 ),

    nTabStart( 0 ),

    nDisplayStart( 0 ),

    aDateTime( DateTime::SYSTEM ),

    nTotalPages( 0 ),

    pDocShell( pDocSh ),

    pViewShell( pViewSh ),

    bInGetState( false ),

    bValid( false ),

    bStateValid( false ),

    bLocationValid( false ),

    bInPaint( false ),

    bInSetZoom( false ),

    bLeftRulerMove( false ),

    bRightRulerMove( false ),

    bTopRulerMove( false ),

    bBottomRulerMove( false ),

    bHeaderRulerMove( false ),

    bFooterRulerMove( false ),

    bLeftRulerChange( false ),

    bRightRulerChange( false ),

    bTopRulerChange( false ),

    bBottomRulerChange( false ),

    bHeaderRulerChange( false ),

    bFooterRulerChange( false ),

    bPageMargin ( false ),

    bColRulerMove( false ),

    mbHasEmptyRangeTable(false),

    nLeftPosition( 0 ),

    mnScale( 0 ),

    nColNumberButtonDown( 0 ),

    nHeaderHeight ( 0 ),

    nFooterHeight ( 0 )

{

    GetOutDev()->SetOutDevViewType( OutDevViewType::PrintPreview );

    SetBackground();

    SetHelpId( HID_SC_WIN_PREVIEW );

    GetOutDev()->SetDigitLanguage( ScModule::GetOptDigitLanguage() );

}

Unexecuted instantiation: ScPreview::ScPreview(vcl::Window*, ScDocShell*, ScPreviewShell*)

Unexecuted instantiation: ScPreview::ScPreview(vcl::Window*, ScDocShell*, ScPreviewShell*)

ScPreview::~ScPreview()

{

    disposeOnce();

}

void ScPreview::dispose()

{

    pDrawView.reset();

    pLocationData.reset();

    vcl::Window::dispose();

}

void ScPreview::UpdateDrawView()        // nTab must be right

{

    ScDocument& rDoc = pDocShell->GetDocument();

    ScDrawLayer* pModel = rDoc.GetDrawLayer();     // is not 0

    if ( pModel )

    {

        SdrPage* pPage = pModel->GetPage(nTab);

        if ( pDrawView && ( !pDrawView->GetSdrPageView() || pDrawView->GetSdrPageView()->GetPage() != pPage ) )

        {

            // convert the displayed Page of drawView (see below) does not work?!?

            pDrawView.reset();

        }

        if ( !pDrawView )                                   // New Drawing?

        {

            pDrawView.reset( new FmFormView( *pModel, GetOutDev()) );

            // The DrawView takes over the Design-Mode from the Model

            // (Settings "In opening Draftmode"), therefore to restore here

            pDrawView->SetDesignMode();

            pDrawView->SetPrintPreview();

            pDrawView->ShowSdrPage(pPage);

        }

    }

    else if ( pDrawView )

    {

        pDrawView.reset();   // for this Chart is not needed

    }

}

void ScPreview::TestLastPage()

{

    if (nPageNo < nTotalPages)

        return;

    if (nTotalPages)

    {

        nPageNo = nTotalPages - 1;

        nTab = static_cast<SCTAB>(nPages.size()) -1;

        while (nTab > 0 && !nPages[nTab])       // not the last empty Table

            --nTab;

        OSL_ENSURE(0 < static_cast<SCTAB>(nPages.size()),"are all tables empty?");

        nTabPage = nPages[nTab] - 1;

        nTabStart = 0;

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

            nTabStart += nPages[i];

        ScDocument& rDoc = pDocShell->GetDocument();

        nDisplayStart = lcl_GetDisplayStart( nTab, &rDoc, nPages );

    }

    else        // empty Document

    {

        nTab = 0;

        nPageNo = nTabPage = nTabStart = nDisplayStart = 0;

        aState = ScPrintState();

    }

}

void ScPreview::CalcPages()

{

    weld::WaitObject aWait(GetFrameWeld());

    ScDocument& rDoc = pDocShell->GetDocument();

    nTabCount = rDoc.GetTableCount();

    if (maSelectedTabs.empty())

    {

        SCTAB nCurrentTab = ScDocShell::GetCurTab();

        maSelectedTabs.insert(nCurrentTab);

    }

    SCTAB nStart = nTabsTested;

    if (!bValid)

    {

        nStart = 0;

        nTotalPages = 0;

        nTabsTested = 0;

    }

    // update all pending row heights with a single progress bar,

    // instead of a separate progress for each sheet from ScPrintFunc

    pDocShell->UpdatePendingRowHeights( nTabCount-1, true );

    //  PrintOptions is passed to PrintFunc for SkipEmpty flag,

    //  but always all sheets are used (there is no selected sheet)

    ScPrintOptions aOptions = ScModule::get()->GetPrintOptions();

    while (nStart > static_cast<SCTAB>(nPages.size()))

        nPages.push_back(0);

    while (nStart > static_cast<SCTAB>(nFirstAttr.size()))

        nFirstAttr.push_back(1);

    for (SCTAB i=nStart; i<nTabCount; i++)

    {

        if ( i == static_cast<SCTAB>(nPages.size()))

            nPages.push_back(0);

        if ( i == static_cast<SCTAB>(nFirstAttr.size()))

            nFirstAttr.push_back(1);

        if (!aOptions.GetAllSheets() && maSelectedTabs.count(i) == 0)

        {

            nPages[i] = 0;

            nFirstAttr[i] = 1;

            continue;

        }

        tools::Long nAttrPage = i > 0 ? nFirstAttr[i-1] : 1;

        tools::Long nThisStart = nTotalPages;

        ScPrintFunc aPrintFunc( GetOutDev(), *pDocShell, i, nAttrPage, 0, nullptr, &aOptions );

        tools::Long nThisTab = aPrintFunc.GetTotalPages();

        if (!aPrintFunc.HasPrintRange())

            mbHasEmptyRangeTable = true;

        nPages[i] = nThisTab;

        nTotalPages += nThisTab;

        nFirstAttr[i] = aPrintFunc.GetFirstPageNo();    // to keep or from template

        if (nPageNo>=nThisStart && nPageNo<nTotalPages)

        {

            nTab = i;

            nTabPage = nPageNo - nThisStart;

            nTabStart = nThisStart;

            aPrintFunc.GetPrintState( aState );

        }

    }

    nDisplayStart = lcl_GetDisplayStart( nTab, &rDoc, nPages );

    if (nTabCount > nTabsTested)

        nTabsTested = nTabCount;

    TestLastPage();

    aState.nDocPages = nTotalPages;

    bValid = true;

    bStateValid = true;

    DoInvalidate();

}

void ScPreview::RecalcPages()           // only nPageNo is changed

{

    if (!bValid)

        return;                         // then CalcPages is called

    SCTAB nOldTab = nTab;

    bool bDone = false;

    while (nPageNo >= nTotalPages && nTabsTested < nTabCount)

    {

        CalcPages();

        bDone = true;

    }

    if (!bDone)

    {

        tools::Long nPartPages = 0;

        for (SCTAB i=0; i<nTabsTested && nTab < static_cast<SCTAB>(nPages.size()); i++)

        {

            tools::Long nThisStart = nPartPages;

            nPartPages += nPages[i];

            if (nPageNo>=nThisStart && nPageNo<nPartPages)

            {

                nTab = i;

                nTabPage = nPageNo - nThisStart;

                nTabStart = nThisStart;

            }

        }

        ScDocument& rDoc = pDocShell->GetDocument();

        nDisplayStart = lcl_GetDisplayStart( nTab, &rDoc, nPages );

    }

    TestLastPage();         // to test, if after last page

    if ( nTab != nOldTab )

        bStateValid = false;

    DoInvalidate();

}

void ScPreview::DoPrint( ScPreviewLocationData* pFillLocation )

{

    if (!bValid)

    {

        CalcPages();

        RecalcPages();

        UpdateDrawView();       // Spreadsheet eventually changes

    }

    double fPreviewZoom = double(nZoom) / 100;

    double fHorPrevZoom = 100.0 * nZoom / pDocShell->GetOutputFactor() / 10000;

    MapMode aMMMode( MapUnit::Map100thMM, Point(), fHorPrevZoom, fPreviewZoom );

    bool bDoPrint = ( pFillLocation == nullptr );

    bool bValidPage = ( nPageNo < nTotalPages );

    ScModule* pScMod = ScModule::get();

    const svtools::ColorConfig& rColorCfg = pScMod->GetColorConfig();

    Color aBackColor( rColorCfg.GetColorValue(svtools::APPBACKGROUND).nColor );

    if ( bDoPrint && ( aOffset.X() < 0 || aOffset.Y() < 0 ) && bValidPage )

    {

        SetMapMode( aMMMode );

        GetOutDev()->SetLineColor();

        GetOutDev()->SetFillColor(aBackColor);

        Size aWinSize = GetOutDev()->GetOutputSize();

        if ( aOffset.X() < 0 )

            GetOutDev()->DrawRect(tools::Rectangle( 0, 0, -aOffset.X(), aWinSize.Height() ));

        if ( aOffset.Y() < 0 )

            GetOutDev()->DrawRect(tools::Rectangle( 0, 0, aWinSize.Width(), -aOffset.Y() ));

    }

    tools::Long   nLeftMargin = 0;

    tools::Long   nRightMargin = 0;

    tools::Long   nTopMargin = 0;

    tools::Long   nBottomMargin = 0;

    bool   bHeaderOn = false;

    bool   bFooterOn = false;

    ScDocument& rDoc = pDocShell->GetDocument();

    bool   bLayoutRTL = rDoc.IsLayoutRTL( nTab );

    Size aLocalPageSize;

    if ( bValidPage )

    {

        ScPrintOptions aOptions = pScMod->GetPrintOptions();

        std::unique_ptr<ScPrintFunc, o3tl::default_delete<ScPrintFunc>> pPrintFunc;

        if (bStateValid)

            pPrintFunc.reset(new ScPrintFunc(GetOutDev(), *pDocShell, aState, &aOptions));

        else

            pPrintFunc.reset(new ScPrintFunc(GetOutDev(), *pDocShell, nTab, nFirstAttr[nTab], nTotalPages, nullptr, &aOptions));

        pPrintFunc->SetOffset(aOffset);

        pPrintFunc->SetManualZoom(nZoom);

        pPrintFunc->SetDateTime(aDateTime);

        pPrintFunc->SetClearFlag(true);

        pPrintFunc->SetUseStyleColor(false); // tdf#101142 print preview should use a white background

        pPrintFunc->SetDrawView( pDrawView.get() );

        // MultiSelection for the one Page must produce something inconvenient

        Range aPageRange( nPageNo+1, nPageNo+1 );

        MultiSelection aPage( aPageRange );

        aPage.SetTotalRange( Range(0,RANGE_MAX) );

        aPage.Select( aPageRange );

        tools::Long nPrinted = pPrintFunc->DoPrint( aPage, nTabStart, nDisplayStart, bDoPrint, pFillLocation );

        OSL_ENSURE(nPrinted<=1, "What is happening?");

        SetMapMode(aMMMode);

        //init nLeftMargin ... in the ScPrintFunc::InitParam!!!

        nLeftMargin = pPrintFunc->GetLeftMargin();

        nRightMargin = pPrintFunc->GetRightMargin();

        nTopMargin = pPrintFunc->GetTopMargin();

        nBottomMargin = pPrintFunc->GetBottomMargin();

        nHeaderHeight = pPrintFunc->GetHeader().nHeight;

        nFooterHeight = pPrintFunc->GetFooter().nHeight;

        bHeaderOn = pPrintFunc->GetHeader().bEnable;

        bFooterOn = pPrintFunc->GetFooter().bEnable;

        mnScale = pPrintFunc->GetZoom();

        if ( bDoPrint && bPageMargin && pLocationData )     // don't make use of pLocationData while filling it

        {

            tools::Rectangle aPixRect;

            tools::Rectangle aRectCellPosition;

            tools::Rectangle aRectPosition;

            pLocationData->GetMainCellRange( aPageArea, aPixRect );

            mvRight.resize(aPageArea.aEnd.Col()+1);

            if( !bLayoutRTL )

            {

                aRectPosition = pLocationData->GetCellPosition(aPageArea.aStart);

                nLeftPosition = aRectPosition.Left();

                for( SCCOL i = aPageArea.aStart.Col(); i <= aPageArea.aEnd.Col(); i++ )

                {

                    aRectCellPosition = pLocationData->GetCellPosition(

                        ScAddress(i, aPageArea.aStart.Row(), aPageArea.aStart.Tab()));

                    mvRight[i] = aRectCellPosition.Right();

                }

            }

            else

            {

                aRectPosition = pLocationData->GetCellPosition(aPageArea.aEnd);

                nLeftPosition = aRectPosition.Right()+1;

                aRectCellPosition = pLocationData->GetCellPosition(aPageArea.aStart);

                mvRight[ aPageArea.aEnd.Col() ] = aRectCellPosition.Left();

                for( SCCOL i = aPageArea.aEnd.Col(); i > aPageArea.aStart.Col(); i-- )

                {

                    aRectCellPosition = pLocationData->GetCellPosition(

                        ScAddress(i, aPageArea.aEnd.Row(), aPageArea.aEnd.Tab()));

                    mvRight[ i-1 ] = mvRight[ i ] + aRectCellPosition.Right() - aRectCellPosition.Left() + 1;

                }

            }

        }

        if (nPrinted)   // if not, draw everything grey

        {

            aLocalPageSize = pPrintFunc->GetPageSize();

            aLocalPageSize.setWidth(

                o3tl::convert(aLocalPageSize.Width(), o3tl::Length::twip, o3tl::Length::mm100));

            aLocalPageSize.setHeight(

                o3tl::convert(aLocalPageSize.Height(), o3tl::Length::twip, o3tl::Length::mm100));

            nLeftMargin = o3tl::convert(nLeftMargin, o3tl::Length::twip, o3tl::Length::mm100);

            nRightMargin = o3tl::convert(nRightMargin, o3tl::Length::twip, o3tl::Length::mm100);

            nTopMargin = o3tl::convert(nTopMargin, o3tl::Length::twip, o3tl::Length::mm100);

            nBottomMargin = o3tl::convert(nBottomMargin, o3tl::Length::twip, o3tl::Length::mm100);

            constexpr auto md = o3tl::getConversionMulDiv(o3tl::Length::twip, o3tl::Length::mm10);

            const auto m = md.first * mnScale, d = md.second * 100;

            nHeaderHeight = o3tl::convert(nHeaderHeight, m, d) + nTopMargin;

            nFooterHeight = o3tl::convert(nFooterHeight, m, d) + nBottomMargin;

        }

        if (!bStateValid)

        {

            pPrintFunc->GetPrintState( aState );

            aState.nDocPages = nTotalPages;

            bStateValid = true;

        }

    }

    if ( !bDoPrint )

        return;

    tools::Long nPageEndX = aLocalPageSize.Width()  - aOffset.X();

    tools::Long nPageEndY = aLocalPageSize.Height() - aOffset.Y();

    if ( !bValidPage )

        nPageEndX = nPageEndY = 0;

    Size aWinSize = GetOutDev()->GetOutputSize();

    Point aWinEnd( aWinSize.Width(), aWinSize.Height() );

    bool bRight  = nPageEndX <= aWinEnd.X();

    bool bBottom = nPageEndY <= aWinEnd.Y();

    if (!nTotalPages)

    {

        // There is no data to print. Print a friendly warning message and

        // bail out.

        SetMapMode(aMMMode);

        // Draw background first.

        GetOutDev()->SetLineColor();

        GetOutDev()->SetFillColor(aBackColor);

        GetOutDev()->DrawRect(tools::Rectangle(0, 0, aWinEnd.X(), aWinEnd.Y()));

        const ScPatternAttr& rDefPattern(rDoc.getCellAttributeHelper().getDefaultCellAttribute());

        std::unique_ptr<ScEditEngineDefaulter> pEditEng(

            new ScEditEngineDefaulter(EditEngine::CreatePool().get(), true));

        pEditEng->SetRefMapMode(aMMMode);

        SfxItemSet aEditDefaults( pEditEng->GetEmptyItemSet() );

        rDefPattern.FillEditItemSet(&aEditDefaults);

        aEditDefaults.Put(SvxColorItem(COL_LIGHTGRAY, EE_CHAR_COLOR));

        pEditEng->SetDefaults(std::move(aEditDefaults));

        OUString aEmptyMsg;

        if (mbHasEmptyRangeTable)

            aEmptyMsg = ScResId(STR_PRINT_PREVIEW_EMPTY_RANGE);

        else

            aEmptyMsg = ScResId(STR_PRINT_PREVIEW_NODATA);

        tools::Long nHeight = 3000;

        pEditEng->SetDefaultItem(SvxFontHeightItem(nHeight, 100, EE_CHAR_FONTHEIGHT));

        pEditEng->SetDefaultItem(SvxFontHeightItem(nHeight, 100, EE_CHAR_FONTHEIGHT_CJK));

        pEditEng->SetDefaultItem(SvxFontHeightItem(nHeight, 100, EE_CHAR_FONTHEIGHT_CTL));

        pEditEng->SetTextCurrentDefaults(aEmptyMsg);

        Point aCenter(

            (aWinEnd.X() - pEditEng->CalcTextWidth())/2,

            (aWinEnd.Y() - pEditEng->GetTextHeight())/2);

        pEditEng->DrawText_ToPosition(*GetOutDev(), aCenter);

        return;

    }

    if( bPageMargin && bValidPage )

    {

        SetMapMode(aMMMode);

        GetOutDev()->SetLineColor( COL_BLACK );

        DrawInvert( static_cast<tools::Long>( nTopMargin - aOffset.Y() ), PointerStyle::VSizeBar );

        DrawInvert( static_cast<tools::Long>(nPageEndY - nBottomMargin ), PointerStyle::VSizeBar );

        DrawInvert( static_cast<tools::Long>( nLeftMargin - aOffset.X() ), PointerStyle::HSizeBar );

        DrawInvert( static_cast<tools::Long>( nPageEndX - nRightMargin ) , PointerStyle::HSizeBar );

        if( bHeaderOn )

        {

            DrawInvert( nHeaderHeight - aOffset.Y(), PointerStyle::VSizeBar );

        }

        if( bFooterOn )

        {

            DrawInvert( nPageEndY - nFooterHeight, PointerStyle::VSizeBar );

        }

        SetMapMode( MapMode( MapUnit::MapPixel ) );

        for( int i= aPageArea.aStart.Col(); i<= aPageArea.aEnd.Col(); i++ )

        {

            Point aColumnTop = LogicToPixel( Point( 0, -aOffset.Y() ) ,aMMMode );

            GetOutDev()->SetLineColor( COL_BLACK );

            GetOutDev()->SetFillColor( COL_BLACK );

            GetOutDev()->DrawRect( tools::Rectangle( Point( mvRight[i] - 2, aColumnTop.Y() ),Point( mvRight[i] + 2 , 4 + aColumnTop.Y()) ));

            GetOutDev()->DrawLine( Point( mvRight[i], aColumnTop.Y() ), Point( mvRight[i],  10 + aColumnTop.Y()) );

        }

        SetMapMode( aMMMode );

    }

    if (bRight || bBottom)

    {

        SetMapMode(aMMMode);

        GetOutDev()->SetLineColor();

        GetOutDev()->SetFillColor(aBackColor);

        if (bRight)

            GetOutDev()->DrawRect(tools::Rectangle(nPageEndX,0, aWinEnd.X(),aWinEnd.Y()));

        if (bBottom)

        {

            if (bRight)

                GetOutDev()->DrawRect(tools::Rectangle(0,nPageEndY, nPageEndX,aWinEnd.Y()));    // Corner not duplicated

            else

                GetOutDev()->DrawRect(tools::Rectangle(0,nPageEndY, aWinEnd.X(),aWinEnd.Y()));

        }

    }

    if ( !bValidPage )

        return;

    Color aBorderColor(ScModule::get()->GetColorConfig().GetColorValue(svtools::FONTCOLOR).nColor);

    //  draw border

    if ( aOffset.X() <= 0 || aOffset.Y() <= 0 || bRight || bBottom )

    {

        GetOutDev()->SetLineColor( aBorderColor );

        GetOutDev()->SetFillColor();

        tools::Rectangle aPixel( LogicToPixel( tools::Rectangle( -aOffset.X(), -aOffset.Y(), nPageEndX, nPageEndY ) ) );

        aPixel.AdjustRight( -1 );

        aPixel.AdjustBottom( -1 );

        GetOutDev()->DrawRect( PixelToLogic( aPixel ) );

    }

    //  draw shadow

    GetOutDev()->SetLineColor();

    GetOutDev()->SetFillColor( aBorderColor );

    tools::Rectangle aPixel;

    aPixel = LogicToPixel( tools::Rectangle( nPageEndX, -aOffset.Y(), nPageEndX, nPageEndY ) );

    aPixel.AdjustTop(SC_PREVIEW_SHADOWSIZE );

    aPixel.AdjustRight(SC_PREVIEW_SHADOWSIZE - 1 );

    aPixel.AdjustBottom(SC_PREVIEW_SHADOWSIZE - 1 );

    GetOutDev()->DrawRect( PixelToLogic( aPixel ) );

    aPixel = LogicToPixel( tools::Rectangle( -aOffset.X(), nPageEndY, nPageEndX, nPageEndY ) );

    aPixel.AdjustLeft(SC_PREVIEW_SHADOWSIZE );

    aPixel.AdjustRight(SC_PREVIEW_SHADOWSIZE - 1 );

    aPixel.AdjustBottom(SC_PREVIEW_SHADOWSIZE - 1 );

    GetOutDev()->DrawRect( PixelToLogic( aPixel ) );

}

void ScPreview::Paint( vcl::RenderContext& /*rRenderContext*/, const tools::Rectangle& /* rRect */ )

{

    bool bWasInPaint = bInPaint;        // nested calls shouldn't be necessary, but allow for now

    bInPaint = true;

    if (bPageMargin)

        GetLocationData();              // fill location data for column positions

    DoPrint( nullptr );

    pViewShell->UpdateScrollBars();

    bInPaint = bWasInPaint;

}

void ScPreview::Command( const CommandEvent& rCEvt )

{

    CommandEventId nCmd = rCEvt.GetCommand();

    if ( nCmd == CommandEventId::Wheel || nCmd == CommandEventId::StartAutoScroll || nCmd == CommandEventId::AutoScroll )

    {

        bool bDone = pViewShell->ScrollCommand( rCEvt );

        if (!bDone)

            Window::Command(rCEvt);

    }

    else if ( nCmd == CommandEventId::ContextMenu )

        SfxDispatcher::ExecutePopup();

    else

        Window::Command( rCEvt );

}

void ScPreview::KeyInput( const KeyEvent& rKEvt )

{

    //  The + and - keys can't be configured as accelerator entries, so they must be handled directly

    //  (in ScPreview, not ScPreviewShell -> only if the preview window has the focus)

    const vcl::KeyCode& rKeyCode = rKEvt.GetKeyCode();

    sal_uInt16 nKey = rKeyCode.GetCode();

    bool bHandled = false;

    if(!rKeyCode.GetModifier())

    {

        sal_uInt16 nSlot = 0;

        switch(nKey)

        {

            case KEY_ADD:      nSlot = SID_ZOOM_IN;  break;

            case KEY_ESCAPE:   nSlot = ScViewUtil::IsFullScreen( *pViewShell ) ? SID_CANCEL : SID_PREVIEW_CLOSE; break;

            case KEY_SUBTRACT: nSlot = SID_ZOOM_OUT; break;

        }

        if(nSlot)

        {

            bHandled = true;

            pViewShell->GetViewFrame().GetDispatcher()->Execute( nSlot, SfxCallMode::ASYNCHRON );

        }

    }

    if ( !bHandled && !pViewShell->KeyInput(rKEvt) )

        Window::KeyInput(rKEvt);

}

const ScPreviewLocationData& ScPreview::GetLocationData()

{

    if ( !pLocationData )

    {

        pLocationData.reset( new ScPreviewLocationData( &pDocShell->GetDocument(), GetOutDev() ) );

        bLocationValid = false;

    }

    if ( !bLocationValid )

    {

        pLocationData->Clear();

        DoPrint( pLocationData.get() );

        bLocationValid = true;

    }

    return *pLocationData;

}

void ScPreview::DataChanged(bool bNewTime)

{

    if (bNewTime)

        aDateTime = DateTime( DateTime::SYSTEM );

    bValid = false;

    InvalidateLocationData( SfxHintId::ScDataChanged );

    Invalidate();

}

OUString ScPreview::GetPosString()

{

    if (!bValid)

    {

        CalcPages();

        UpdateDrawView();       // The table eventually changes

    }

    OUString aString = ScResId( STR_PAGE ) +

                       " " + OUString::number(nPageNo+1);

    if (nTabsTested >= nTabCount)

        aString += " / " + OUString::number(nTotalPages);

    return aString;

}

void ScPreview::SetZoom(sal_uInt16 nNewZoom)

{

    if (nNewZoom < 20)

        nNewZoom = 20;

    if (nNewZoom > 400)

        nNewZoom = 400;

    if (nNewZoom == nZoom)

        return;

    nZoom = nNewZoom;

    //  apply new MapMode and call UpdateScrollBars to update aOffset

    double fPreviewZoom = double(nZoom) / 100;

    double fHorPrevZoom = 100.0 * nZoom / pDocShell->GetOutputFactor() / 10000;

    MapMode aMMMode( MapUnit::Map100thMM, Point(), fHorPrevZoom, fPreviewZoom );

    SetMapMode( aMMMode );

    bInSetZoom = true;              // don't scroll during SetYOffset in UpdateScrollBars

    pViewShell->UpdateNeededScrollBars(true);

    bInSetZoom = false;

    InvalidateLocationData( SfxHintId::ScAccVisAreaChanged );

    DoInvalidate();

    Invalidate();

}

void ScPreview::SetPageNo( tools::Long nPage )

{

    nPageNo = nPage;

    RecalcPages();

    UpdateDrawView();       // The table eventually changes

    InvalidateLocationData( SfxHintId::ScDataChanged );

    Invalidate();

}

tools::Long ScPreview::GetFirstPage(SCTAB nTabP)

{

    SCTAB nDocTabCount = pDocShell->GetDocument().GetTableCount();

    if (nTabP >= nDocTabCount)

        nTabP = nDocTabCount-1;

    tools::Long nPage = 0;

    if (nTabP>0)

    {

        CalcPages();

        if (nTabP >= static_cast<SCTAB>(nPages.size()) )

            OSL_FAIL("nPages out of bounds, FIX IT");

        UpdateDrawView();       // The table eventually changes

        for (SCTAB i=0; i<nTabP; i++)

            nPage += nPages[i];

        // An empty Table on the previous Page

        if ( nPages[nTabP]==0 && nPage > 0 )

            --nPage;

    }

    return nPage;

}

static Size lcl_GetDocPageSize( const ScDocument* pDoc, SCTAB nTab )

{

    OUString aName = pDoc->GetPageStyle( nTab );

    ScStyleSheetPool* pStylePool = pDoc->GetStyleSheetPool();

    SfxStyleSheetBase* pStyleSheet = pStylePool->Find( aName, SfxStyleFamily::Page );

    if ( pStyleSheet )

    {

        SfxItemSet& rStyleSet = pStyleSheet->GetItemSet();

        return rStyleSet.Get(ATTR_PAGE_SIZE).GetSize();

    }

    else

    {

        OSL_FAIL( "PageStyle not found" );

        return Size();

    }

}

sal_uInt16 ScPreview::GetOptimalZoom(bool bWidthOnly)

{

    double nWinScaleX = ScGlobal::nScreenPPTX / pDocShell->GetOutputFactor();

    double nWinScaleY = ScGlobal::nScreenPPTY;

    Size aWinSize = GetOutputSizePixel();

    //  desired margin is 0.25cm in default MapMode (like Writer),

    //  but some additional margin is introduced by integer scale values

    //  -> add only 0.10cm, so there is some margin in all cases.

    Size aMarginSize( LogicToPixel(Size(100, 100), MapMode(MapUnit::Map100thMM)) );

    aWinSize.AdjustWidth( -(2 * aMarginSize.Width()) );

    aWinSize.AdjustHeight( -(2 * aMarginSize.Height()) );

    Size aLocalPageSize = lcl_GetDocPageSize( &pDocShell->GetDocument(), nTab );

    if ( aLocalPageSize.Width() && aLocalPageSize.Height() )

    {

        tools::Long nZoomX = static_cast<tools::Long>( aWinSize.Width() * 100  / ( aLocalPageSize.Width() * nWinScaleX ));

        tools::Long nZoomY = static_cast<tools::Long>( aWinSize.Height() * 100 / ( aLocalPageSize.Height() * nWinScaleY ));

        tools::Long nOptimal = nZoomX;

        if (!bWidthOnly && nZoomY<nOptimal)

            nOptimal = nZoomY;

        if (nOptimal<20)

            nOptimal = 20;

        if (nOptimal>400)

            nOptimal = 400;

        return static_cast<sal_uInt16>(nOptimal);

    }

    else

        return nZoom;

}

void ScPreview::SetXOffset( tools::Long nX )

{

    if ( aOffset.X() == nX )

        return;

    if (bValid)

    {

        tools::Long nDif = LogicToPixel(aOffset).X() - LogicToPixel(Point(nX,0)).X();

        aOffset.setX( nX );

        if (nDif && !bInSetZoom)

        {

            MapMode aOldMode = GetMapMode();

            SetMapMode(MapMode(MapUnit::MapPixel));

            Scroll( nDif, 0 );

            SetMapMode(aOldMode);

        }

    }

    else

    {

        aOffset.setX( nX );

        if (!bInSetZoom)

            Invalidate();

    }

    InvalidateLocationData( SfxHintId::ScAccVisAreaChanged );

    Invalidate();

}

void ScPreview::SetYOffset( tools::Long nY )

{

    if ( aOffset.Y() == nY )

        return;

    if (bValid)

    {

        tools::Long nDif = LogicToPixel(aOffset).Y() - LogicToPixel(Point(0,nY)).Y();

        aOffset.setY( nY );

        if (nDif && !bInSetZoom)

        {

            MapMode aOldMode = GetMapMode();

            SetMapMode(MapMode(MapUnit::MapPixel));

            Scroll( 0, nDif );

            SetMapMode(aOldMode);

        }

    }

    else

    {

        aOffset.setY( nY );

        if (!bInSetZoom)

            Invalidate();

    }

    InvalidateLocationData( SfxHintId::ScAccVisAreaChanged );

    Invalidate();

}