/* -*- 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 <sal/config.h>

#include <o3tl/unit_conversion.hxx>

#include <svx/svdoutl.hxx>

#include <svx/svdpagv.hxx>

#include <svx/svdview.hxx>

#include <vcl/rendercontext/DrawModeFlags.hxx>

#include <vcl/svapp.hxx>

#include <vcl/settings.hxx>

#include <osl/diagnose.h>

#include <output.hxx>

#include <drwlayer.hxx>

#include <document.hxx>

#include <tabvwsh.hxx>

#include <svx/fmview.hxx>

#include <svx/sdrpaintwindow.hxx>

#include <svx/sdrpagewindow.hxx>

// #i72502#

Point ScOutputData::PrePrintDrawingLayer(tools::Long nLogStX, tools::Long nLogStY )

{

    tools::Rectangle aRect;

    SCCOL nCol;

    Point aOffset;

    tools::Long nLayoutSign(mbLayoutRTL ? -1 : 1);

    for (nCol=0; nCol<mnX1; nCol++)

        aOffset.AdjustX( -(mpDoc->GetColWidth( nCol, mnTab ) * nLayoutSign) );

    aOffset.AdjustY( -sal_Int32(mpDoc->GetRowHeight( 0, mnY1-1, mnTab )) );

    tools::Long nDataWidth = 0;

    for (nCol=mnX1; nCol<=mnX2; nCol++)

        nDataWidth += mpDoc->GetColWidth( nCol, mnTab );

    if ( mbLayoutRTL )

        aOffset.AdjustX(nDataWidth );

    aRect.SetLeft( -aOffset.X() );

    aRect.SetRight( -aOffset.X() );

    aRect.SetTop( -aOffset.Y() );

    aRect.SetBottom( -aOffset.Y() );

    Point aMMOffset( aOffset );

    aMMOffset.setX(o3tl::convert(aMMOffset.X(), o3tl::Length::twip, o3tl::Length::mm100));

    aMMOffset.setY(o3tl::convert(aMMOffset.Y(), o3tl::Length::twip, o3tl::Length::mm100));

    if (!mbMetaFile)

        aMMOffset += Point( nLogStX, nLogStY );

    for (nCol=mnX1; nCol<=mnX2; nCol++)

        aRect.AdjustRight(mpDoc->GetColWidth( nCol, mnTab ) );

    aRect.AdjustBottom(mpDoc->GetRowHeight( mnY1, mnY2, mnTab ) );

    aRect.SetLeft(o3tl::convert(aRect.Left(), o3tl::Length::twip, o3tl::Length::mm100));

    aRect.SetTop(o3tl::convert(aRect.Top(), o3tl::Length::twip, o3tl::Length::mm100));

    aRect.SetRight(o3tl::convert(aRect.Right(), o3tl::Length::twip, o3tl::Length::mm100));

    aRect.SetBottom(o3tl::convert(aRect.Bottom(), o3tl::Length::twip, o3tl::Length::mm100));

    if(mpViewShell || mpDrawView)

    {

        SdrView* pLocalDrawView = mpDrawView ? mpDrawView : mpViewShell->GetScDrawView();

        if(pLocalDrawView)

        {

            // #i76114# MapMode has to be set because BeginDrawLayers uses GetPaintRegion

            MapMode aOldMode = mpDev->GetMapMode();

            if (!mbMetaFile)

                mpDev->SetMapMode( MapMode( MapUnit::Map100thMM, aMMOffset, aOldMode.GetScaleX(), aOldMode.GetScaleY() ) );

            // #i74769# work with SdrPaintWindow directly

            // #i76114# pass bDisableIntersect = true, because the intersection of the table area

            // with the Window's paint region can be empty

            vcl::Region aRectRegion(aRect);

            mpTargetPaintWindow = pLocalDrawView->BeginDrawLayers(mpDev, aRectRegion, true);

            OSL_ENSURE(mpTargetPaintWindow, "BeginDrawLayers: Got no SdrPaintWindow (!)");

            if (!mbMetaFile)

                mpDev->SetMapMode( aOldMode );

        }

    }

    return aMMOffset;

}

// #i72502#

void ScOutputData::PostPrintDrawingLayer(const Point& rMMOffset) // #i74768#

{

    // #i74768# just use offset as in PrintDrawingLayer() to also get the form controls

    // painted with offset

    MapMode aOldMode = mpDev->GetMapMode();

    if (!mbMetaFile)

    {

        mpDev->SetMapMode( MapMode( MapUnit::Map100thMM, rMMOffset, aOldMode.GetScaleX(), aOldMode.GetScaleY() ) );

    }

    if(mpViewShell || mpDrawView)

    {

        SdrView* pLocalDrawView = mpDrawView ? mpDrawView : mpViewShell->GetScDrawView();

        if(pLocalDrawView)

        {

            // #i74769# work with SdrPaintWindow directly

            pLocalDrawView->EndDrawLayers(*mpTargetPaintWindow, true);

            mpTargetPaintWindow = nullptr;

        }

    }

    // #i74768#

    if (!mbMetaFile)

    {

        mpDev->SetMapMode( aOldMode );

    }

}

// #i72502#

void ScOutputData::PrintDrawingLayer(SdrLayerID nLayer, const Point& rMMOffset)

{

    bool bHideAllDrawingLayer(false);

    if(mpViewShell || mpDrawView)

    {

        SdrView* pLocalDrawView = mpDrawView ? mpDrawView : mpViewShell->GetScDrawView();

        if(pLocalDrawView)

        {

            bHideAllDrawingLayer = pLocalDrawView->getHideOle() && pLocalDrawView->getHideChart()

                    && pLocalDrawView->getHideDraw() && pLocalDrawView->getHideFormControl();

        }

    }

    if(bHideAllDrawingLayer || (!mpDoc->GetDrawLayer()))

    {

        return;

    }

    MapMode aOldMode = mpDev->GetMapMode();

    if (!mbMetaFile)

    {

        mpDev->SetMapMode( MapMode( MapUnit::Map100thMM, rMMOffset, aOldMode.GetScaleX(), aOldMode.GetScaleY() ) );

    }

    DrawSelectiveObjects( nLayer );

    if (!mbMetaFile)

    {

        mpDev->SetMapMode( aOldMode );

    }

}

void ScOutputData::DrawSelectiveObjects(SdrLayerID nLayer)

{

    ScDrawLayer* pModel = mpDoc->GetDrawLayer();

    if (!pModel)

        return;

    //  #i46362# high contrast mode (and default text direction) must be handled

    //  by the application, so it's still needed when using DrawLayer().

    SdrOutliner& rOutl = pModel->GetDrawOutliner();

    rOutl.EnableAutoColor( mbUseStyleColor );

    rOutl.SetDefaultHorizontalTextDirection(

                mpDoc->GetEditTextDirection( mnTab ) );

    Color aOldOutlinerBackgroundColor = rOutl.GetBackgroundColor();

    const ScTabViewShell* pTabViewShellBg = mbUseStyleColor ? ScTabViewShell::GetActiveViewShell() : nullptr;

    if (pTabViewShellBg)

    {

        // Similar to writer's SwViewShellImp::PaintLayer set the default

        // background of the Outliner for the AutoColor cases where there is no

        // explicit background known.  But like elsewhere in calc, take

        // mbUseStyleColor of false as ScAutoFontColorMode::Print for print

        // output, so don't set a default outliner background then.

        const ScViewRenderingOptions& rViewRenderingOptions = pTabViewShellBg->GetViewRenderingData();

        rOutl.SetBackgroundColor(rViewRenderingOptions.GetDocColor());

    }

    //  #i69767# The hyphenator must be set (used to be before drawing a text shape with hyphenation).

    //  LinguMgr::GetHyphenator (EditEngine) uses a wrapper now that creates the real hyphenator on demand,

    //  so it's not a performance problem to call UseHyphenator even when it's not needed.

    pModel->UseHyphenator();

    DrawModeFlags nOldDrawMode = mpDev->GetDrawMode();

    if ( mbUseStyleColor && Application::GetSettings().GetStyleSettings().GetHighContrastMode() )

    {

        mpDev->SetDrawMode( nOldDrawMode | DrawModeFlags::SettingsLine | DrawModeFlags::SettingsFill |

                            DrawModeFlags::SettingsText | DrawModeFlags::SettingsGradient );

    }

    if(mpViewShell || mpDrawView)

    {

        SdrView* pLocalDrawView = mpDrawView ? mpDrawView : mpViewShell->GetScDrawView();

        if(pLocalDrawView)

        {

            SdrPageView* pPageView = pLocalDrawView->GetSdrPageView();

            if(pPageView)

            {

                // tdf#160589 need to check for registered PaintWindow using the

                // 'original' TargetDevice, mpDev might have been changed by a

                // call to ::SetContentDevice. That again might patch in a

                // pre-render device fetched from SdrPaintWindow::GetTargetOutputDevice

                // and thus the test if target is a registered PageWindow would fail

                assert(nullptr != mpOriginalTargetDevice && "mpOriginalTargetDevice *must* be set when constructing ScOutputData (!)");

                if (nullptr != pPageView->FindPageWindow(*mpOriginalTargetDevice))

                {

                    // Target OutputDevice is registered for this view

                    // (as it should be), we can just render

                    pPageView->DrawLayer(sal::static_int_cast<SdrLayerID>(nLayer), mpDev);

                }

                else if (0 != pPageView->PageWindowCount())

                {

                    // We need to temporarily make the target OutputDevice being

                    // 'known/registered' in the paint mechanism so that

                    // SdrPageView::DrawLayer can find it.

                    // This situation can occur when someone interprets the

                    // OutputDevice parameter that gets handed over to DrawLayer

                    // (or other SdrPageView repaint methods) to be there to

                    // define a new render target.

                    // This is *not* the case: This parameter is used to

                    // *identify* an already registered target-OutputDevice.

                    // The default is even to call with a nullptr -> that triggers

                    // the repaint for *all* registered OutputDevices/Windows.

                    // Since this is a common and known misinterpretation it

                    // is good to offer workarounds in the code - there are some

                    // already.

                    // For now - use an already existing 'patch mechanism' and

                    // 'smuggle' the unknown/temporary OutputDevice as a

                    // temporary SdrPaintWindow to the SdrPageWindow, that is

                    // not very expensive.

                    // NOTE: Just using the 1st SdrPageWindow here will be OK

                    //   in most cases, the splitting of a view is only used

                    //   in calc nowadays and should have identical zoom.

                    //   Still, trigger a warning...

                    OSL_ENSURE(1 == pPageView->PageWindowCount(),

                        "ScOutputData::DrawSelectiveObjects: More than one SdrPageView, still using 1st one (!)");

                    SdrPageWindow* patchedPageWindow(pPageView->GetPageWindow(0));

                    assert(nullptr != patchedPageWindow && "SdrPageWindow *must* exist when 0 != PageWindowCount()");

                    SdrPaintWindow temporaryPaintWindow(*pLocalDrawView, *mpDev);

                    SdrPaintWindow* previousPaintWindow(patchedPageWindow->patchPaintWindow(temporaryPaintWindow));

                    pPageView->DrawLayer(sal::static_int_cast<SdrLayerID>(nLayer), mpDev);

                    patchedPageWindow->unpatchPaintWindow(previousPaintWindow);

                }

                else

                {

                    // There does not even exist a SdrPageWindow. Still call the

                    // paint to get the paint done, but be aware that this will create

                    // temporary SdrPaintWindow and SdrPageWindow and - due to the

                    // former - will not be able to use the decomposition buffering

                    // in the VC/VOC/OC mechanism. For that reason this might be

                    // somewhat 'expensive'.

                    // You will also get a warning about it (see OSL_FAIL in

                    // SdrPageView::DrawLayer)

                    pPageView->DrawLayer(sal::static_int_cast<SdrLayerID>(nLayer), mpDev);

                }

            }

        }

    }

    if (pTabViewShellBg)

        rOutl.SetBackgroundColor(aOldOutlinerBackgroundColor);

    mpDev->SetDrawMode(nOldDrawMode);

}

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