/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

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 * 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 "tablehandles.hxx"

#include <utility>

#include <vcl/outdev.hxx>

#include <vcl/canvastools.hxx>

#include <vcl/ptrstyle.hxx>

#include <basegfx/polygon/b2dpolygon.hxx>

#include <svx/sdr/overlay/overlayobject.hxx>

#include <svx/sdr/overlay/overlaymanager.hxx>

#include <svx/sdrpagewindow.hxx>

#include <svx/sdrpaintwindow.hxx>

#include <svx/svdmrkv.hxx>

#include <svx/svdpagv.hxx>

#include <drawinglayer/primitive2d/PolyPolygonHairlinePrimitive2D.hxx>

#include <sdr/overlay/overlayrectangle.hxx>

#include <drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx>

#include <svtools/optionsdrawinglayer.hxx>

#include <osl/diagnose.h>

namespace sdr::table {

namespace {

class OverlayTableEdge : public sdr::overlay::OverlayObject

{

protected:

    basegfx::B2DPolyPolygon maPolyPolygon;

    bool                    mbVisible;

    // geometry creation for OverlayObject

    virtual drawinglayer::primitive2d::Primitive2DContainer createOverlayObjectPrimitive2DSequence() override;

public:

    OverlayTableEdge( basegfx::B2DPolyPolygon aPolyPolygon, bool bVisible );

};

}

TableEdgeHdl::TableEdgeHdl( const Point& rPnt, bool bHorizontal, sal_Int32 nMin, sal_Int32 nMax, sal_Int32 nEdges )

: SdrHdl( rPnt, SdrHdlKind::User )

, mbHorizontal( bHorizontal )

, mnMin( nMin )

, mnMax( nMax )

, maEdges(nEdges)

{

}

void TableEdgeHdl::SetEdge( sal_Int32 nEdge, sal_Int32 nStart, sal_Int32 nEnd, TableEdgeState eState )

{

    if( (nEdge >= 0) && (nEdge <= sal::static_int_cast<sal_Int32>(maEdges.size())) )

    {

        maEdges[nEdge].mnStart = nStart;

        maEdges[nEdge].mnEnd = nEnd;

        maEdges[nEdge].meState = eState;

    }

    else

    {

        OSL_FAIL( "sdr::table::TableEdgeHdl::SetEdge(), invalid edge!" );

    }

}

PointerStyle TableEdgeHdl::GetPointer() const

{

    if( mbHorizontal )

        return PointerStyle::VSplit;

    else

        return PointerStyle::HSplit;

}

sal_Int32 TableEdgeHdl::GetValidDragOffset( const SdrDragStat& rDrag ) const

{

    return std::clamp( static_cast<sal_Int32>(mbHorizontal ? rDrag.GetDY() : rDrag.GetDX()), mnMin, mnMax );

}

basegfx::B2DPolyPolygon TableEdgeHdl::getSpecialDragPoly(const SdrDragStat& rDrag) const

{

    basegfx::B2DPolyPolygon aVisible;

    basegfx::B2DPolyPolygon aInvisible;

    // create and return visible and non-visible parts for drag

    getPolyPolygon(aVisible, aInvisible, &rDrag);

    aVisible.append(aInvisible);

    return aVisible;

}

void TableEdgeHdl::getPolyPolygon(basegfx::B2DPolyPolygon& rVisible, basegfx::B2DPolyPolygon& rInvisible, const SdrDragStat* pDrag) const

{

    // changed method to create visible and invisible partial polygons in one run in

    // separate PolyPolygons; both kinds are used

    basegfx::B2DPoint aOffset(m_aPos.X(), m_aPos.Y());

    rVisible.clear();

    rInvisible.clear();

    if( pDrag )

    {

        basegfx::Axis2D eDragAxis = mbHorizontal ? basegfx::Axis2D::Y : basegfx::Axis2D::X;

        aOffset.set(eDragAxis, aOffset.get(eDragAxis) + GetValidDragOffset( *pDrag ));

    }

    basegfx::B2DPoint aStart(aOffset), aEnd(aOffset);

    basegfx::Axis2D eAxis = mbHorizontal ? basegfx::Axis2D::X : basegfx::Axis2D::Y;

    for( const TableEdge& aEdge : maEdges )

    {

        aStart.set(eAxis, aOffset.get(eAxis) + aEdge.mnStart);

        aEnd.set(eAxis, aOffset.get(eAxis) + aEdge.mnEnd);

        basegfx::B2DPolygon aPolygon;

        aPolygon.append( aStart );

        aPolygon.append( aEnd );

        if(aEdge.meState == Visible)

        {

            rVisible.append(aPolygon);

        }

        else

        {

            rInvisible.append(aPolygon);

        }

    }

}

void TableEdgeHdl::CreateB2dIAObject()

{

    GetRidOfIAObject();

    if(!m_pHdlList || !m_pHdlList->GetView() || m_pHdlList->GetView()->areMarkHandlesHidden())

        return;

    SdrMarkView* pView = m_pHdlList->GetView();

    SdrPageView* pPageView = pView->GetSdrPageView();

    if(!pPageView)

        return;

    basegfx::B2DPolyPolygon aVisible;

    basegfx::B2DPolyPolygon aInvisible;

    // get visible and invisible parts

    getPolyPolygon(aVisible, aInvisible, nullptr);

    if(!(aVisible.count() || aInvisible.count()))

        return;

    for(sal_uInt32 nWindow = 0; nWindow < pPageView->PageWindowCount(); nWindow++)

    {

        const SdrPageWindow& rPageWindow = *pPageView->GetPageWindow(nWindow);

        if(rPageWindow.GetPaintWindow().OutputToWindow())

        {

            const rtl::Reference< sdr::overlay::OverlayManager >& xManager = rPageWindow.GetOverlayManager();

            if (xManager.is())

            {

                if(aVisible.count())

                {

                    // create overlay object for visible parts

                    std::unique_ptr<sdr::overlay::OverlayObject> pOverlayObject(new OverlayTableEdge(aVisible, true));

                    // OVERLAYMANAGER

                    insertNewlyCreatedOverlayObjectForSdrHdl(

                        std::move(pOverlayObject),

                        rPageWindow.GetObjectContact(),

                        *xManager);

                }

                if(aInvisible.count())

                {

                    // also create overlay object for invisible parts to allow

                    // a standard HitTest using the primitives from that overlay object

                    // (see OverlayTableEdge implementation)

                    std::unique_ptr<sdr::overlay::OverlayObject> pOverlayObject(new OverlayTableEdge(aInvisible, false));

                    // OVERLAYMANAGER

                    insertNewlyCreatedOverlayObjectForSdrHdl(

                        std::move(pOverlayObject),

                        rPageWindow.GetObjectContact(),

                        *xManager);

                }

            }

        }

    }

}

OverlayTableEdge::OverlayTableEdge( basegfx::B2DPolyPolygon aPolyPolygon, bool bVisible )

:   OverlayObject(COL_GRAY)

,   maPolyPolygon(std::move( aPolyPolygon ))

,   mbVisible(bVisible)

{

}

drawinglayer::primitive2d::Primitive2DContainer OverlayTableEdge::createOverlayObjectPrimitive2DSequence()

{

    drawinglayer::primitive2d::Primitive2DContainer aRetval;

    if(maPolyPolygon.count())

    {

        // Discussed with CL. Currently i will leave the transparence out since this

        // a little bit expensive. We may check the look with drag polygons later

        const drawinglayer::primitive2d::Primitive2DReference aReference(

            new drawinglayer::primitive2d::PolyPolygonHairlinePrimitive2D(

                maPolyPolygon,

                getBaseColor().getBColor()));

        if(mbVisible)

        {

            // visible, just return as sequence

            aRetval = drawinglayer::primitive2d::Primitive2DContainer { aReference };

        }

        else

        {

            // embed in HiddenGeometryPrimitive2D to support HitTest of this invisible

            // overlay object

            drawinglayer::primitive2d::Primitive2DContainer aSequence { aReference };

            const drawinglayer::primitive2d::Primitive2DReference aNewReference(

                new drawinglayer::primitive2d::HiddenGeometryPrimitive2D(std::move(aSequence)));

            aRetval = drawinglayer::primitive2d::Primitive2DContainer { aNewReference };

        }

    }

    return aRetval;

}

TableBorderHdl::TableBorderHdl(

    const tools::Rectangle& rRect,

    bool bAnimate)

:   SdrHdl(rRect.TopLeft(), SdrHdlKind::Move),

    maRectangle(rRect),

    mbAnimate(bAnimate)

{

}

PointerStyle TableBorderHdl::GetPointer() const

{

    return PointerStyle::Move;

}

// create marker for this kind

void TableBorderHdl::CreateB2dIAObject()

{

    GetRidOfIAObject();

    if (!m_pHdlList || !m_pHdlList->GetView() || m_pHdlList->GetView()->areMarkHandlesHidden())

        return;

    SdrMarkView* pView = m_pHdlList->GetView();

    SdrPageView* pPageView = pView->GetSdrPageView();

    if (!pPageView)

        return;

    for(sal_uInt32 nWindow = 0; nWindow < pPageView->PageWindowCount(); nWindow++)

    {

        const SdrPageWindow& rPageWindow = *pPageView->GetPageWindow(nWindow);

        if (rPageWindow.GetPaintWindow().OutputToWindow())

        {

            const rtl::Reference<sdr::overlay::OverlayManager>& xManager = rPageWindow.GetOverlayManager();

            if (xManager.is())

            {

                const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(maRectangle);

                const Color aHilightColor(SvtOptionsDrawinglayer::getHilightColor());

                const double fTransparence(SvtOptionsDrawinglayer::GetTransparentSelectionPercent() * 0.01);

                // make animation dependent from text edit active, because for tables

                // this handle is also used when text edit *is* active for it. This

                // interferes too much concerning repaint stuff (at least as long as

                // text edit is not yet on the overlay)

                OutputDevice& rOutDev = rPageWindow.GetPaintWindow().GetOutputDevice();

                float fScaleFactor = rOutDev.GetDPIScaleFactor();

                double fWidth = fScaleFactor * 6.0;

                std::unique_ptr<sdr::overlay::OverlayObject> pOverlayObject(

                    new sdr::overlay::OverlayRectangle(aRange.getMinimum(), aRange.getMaximum(),

                                                       aHilightColor, fTransparence,

                                                       fWidth, 0.0, 0.0, mbAnimate));

                // OVERLAYMANAGER

                insertNewlyCreatedOverlayObjectForSdrHdl(

                    std::move(pOverlayObject),

                    rPageWindow.GetObjectContact(),

                    *xManager);

            }

        }

    }

}

} // end of namespace sdr::table

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