libreoffice/svx/source/table/tablehandles.cxx

/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: tablehandles.cxx,v $
 * $Revision: 1.4 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"

#include "tablehandles.hxx"

#include <vcl/svapp.hxx>
#include <vcl/outdev.hxx>
#include <vcl/salbtype.hxx>
#include <vcl/canvastools.hxx>
#include <vcl/hatch.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/range/b2drectangle.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <svx/sdr/overlay/overlayobject.hxx>
#include <svx/sdr/overlay/overlaymanager.hxx>
#include <svx/sdrpagewindow.hxx>
#include <sdrpaintwindow.hxx>
#include <svx/svdmrkv.hxx>
#include <svx/svdpagv.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <svx/sdr/overlay/overlayhatchrect.hxx>
#include <drawinglayer/primitive2d/hittestprimitive2d.hxx>

namespace sdr { namespace table {

// --------------------------------------------------------------------

class OverlayTableEdge : public sdr::overlay::OverlayObject
{
protected:
    basegfx::B2DPolyPolygon maPolyPolygon;
    bool                    mbVisible;

    // geometry creation for OverlayObject
    virtual drawinglayer::primitive2d::Primitive2DSequence createOverlayObjectPrimitive2DSequence();

public:
    OverlayTableEdge( const basegfx::B2DPolyPolygon& rPolyPolygon, bool bVisible );
    virtual ~OverlayTableEdge();
};

// --------------------------------------------------------------------

TableEdgeHdl::TableEdgeHdl( const Point& rPnt, bool bHorizontal, sal_Int32 nMin, sal_Int32 nMax, sal_Int32 nEdges )
: SdrHdl( rPnt, HDL_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_ENSURE( false, "sdr::table::TableEdgeHdl::SetEdge(), invalid edge!" );
    }
}

Pointer TableEdgeHdl::GetPointer() const
{
    if( mbHorizontal )
        return POINTER_VSPLIT;
    else
        return POINTER_HSPLIT;
}

sal_Int32 TableEdgeHdl::GetValidDragOffset( const SdrDragStat& rDrag ) const
{
    return std::min( std::max( 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(aPos.X(), aPos.Y());
    rVisible.clear();
    rInvisible.clear();

    if( pDrag )
    {
        int n = mbHorizontal ? 1 : 0;
        aOffset[n] = aOffset[n] + GetValidDragOffset( *pDrag );
    }

    basegfx::B2DPoint aStart(aOffset), aEnd(aOffset);
    int nPos = mbHorizontal ? 0 : 1;
    TableEdgeVector::const_iterator aIter( maEdges.begin() );

    while( aIter != maEdges.end() )
    {
        TableEdge aEdge(*aIter++);

        aStart[nPos] = aOffset[nPos] + aEdge.mnStart;
        aEnd[nPos] = aOffset[nPos] + 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(pHdlList && pHdlList->GetView() && !pHdlList->GetView()->areMarkHandlesHidden())
    {
        SdrMarkView* pView = pHdlList->GetView();
        SdrPageView* pPageView = pView->GetSdrPageView();

        if(pPageView)
        {
            basegfx::B2DPolyPolygon aVisible;
            basegfx::B2DPolyPolygon aInvisible;

            // get visible and invisible parts
            getPolyPolygon(aVisible, aInvisible, 0);

            if(aVisible.count() || aInvisible.count())
            {
                for(sal_uInt32 nWindow = 0; nWindow < pPageView->PageWindowCount(); nWindow++)
                {
                    const SdrPageWindow& rPageWindow = *pPageView->GetPageWindow(nWindow);

                    if(rPageWindow.GetPaintWindow().OutputToWindow())
                    {
                        if(rPageWindow.GetOverlayManager())
                        {
                            if(aVisible.count())
                            {
                                // create overlay object for visible parts
                                sdr::overlay::OverlayObject* pOverlayObject = new OverlayTableEdge(aVisible, true);
                                rPageWindow.GetOverlayManager()->add(*pOverlayObject);
                                maOverlayGroup.append(*pOverlayObject);
                            }

                            if(aInvisible.count())
                            {
                                // also create overlay object vor invisible parts to allow
                                // a standard HitTest using the primitives from that overlay object
                                // (see OverlayTableEdge implementation)
                                sdr::overlay::OverlayObject* pOverlayObject = new OverlayTableEdge(aInvisible, false);
                                rPageWindow.GetOverlayManager()->add(*pOverlayObject);
                                maOverlayGroup.append(*pOverlayObject);
                            }
                        }
                    }
                }
            }
        }
    }
}

//////////////////////////////////////////////////////////////////////////////

OverlayTableEdge::OverlayTableEdge( const basegfx::B2DPolyPolygon& rPolyPolygon, bool bVisible )
:   OverlayObject(Color(COL_GRAY))
,   maPolyPolygon( rPolyPolygon )
,   mbVisible(bVisible)
{
}

OverlayTableEdge::~OverlayTableEdge()
{
}

drawinglayer::primitive2d::Primitive2DSequence OverlayTableEdge::createOverlayObjectPrimitive2DSequence()
{
    drawinglayer::primitive2d::Primitive2DSequence 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::Primitive2DSequence(&aReference, 1);
        }
        else
        {
            // embed in HitTest primitive to support HitTest of this overlay object
            const drawinglayer::primitive2d::Primitive2DSequence aSequence(&aReference, 1);
            const drawinglayer::primitive2d::Primitive2DReference aNewReference(
                new drawinglayer::primitive2d::HitTestPrimitive2D(aSequence));
            aRetval = drawinglayer::primitive2d::Primitive2DSequence(&aNewReference, 1);
        }
    }

    return aRetval;
}

// ====================================================================

TableBorderHdl::TableBorderHdl( const Rectangle& rRect )
: SdrHdl( rRect.TopLeft(), HDL_MOVE )
, maRectangle( rRect )
{

}

Pointer TableBorderHdl::GetPointer() const
{
    return POINTER_MOVE;
}

// create marker for this kind
void TableBorderHdl::CreateB2dIAObject()
{
    GetRidOfIAObject();

    if(pHdlList && pHdlList->GetView() && !pHdlList->GetView()->areMarkHandlesHidden())
    {
        SdrMarkView* pView = pHdlList->GetView();
        SdrPageView* pPageView = pView->GetSdrPageView();

        if(pPageView)
        {
            for(sal_uInt32 nWindow = 0; nWindow < pPageView->PageWindowCount(); nWindow++)
            {
                // const SdrPageViewWinRec& rPageViewWinRec = rPageViewWinList[b];
                const SdrPageWindow& rPageWindow = *pPageView->GetPageWindow(nWindow);

                if(rPageWindow.GetPaintWindow().OutputToWindow())
                {
                    if(rPageWindow.GetOverlayManager())
                    {
                        const basegfx::B2DRange aRange(vcl::unotools::b2DRectangleFromRectangle(maRectangle));
                        sdr::overlay::OverlayObject* pOverlayObject = new sdr::overlay::OverlayHatchRect(
                            aRange.getMinimum(),
                            aRange.getMaximum(),
                            Color(0x80, 0x80, 0x80),
                            6.0,
                            0.0,
                            45 * F_PI180,
                            0.0);

                        rPageWindow.GetOverlayManager()->add(*pOverlayObject);
                        maOverlayGroup.append(*pOverlayObject);
                    }
                }
            }
        }
    }
}

//////////////////////////////////////////////////////////////////////////////

} // end of namespace table
} // end of namespace sdr