/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



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


#include "dcontact.hxx"	// SwDrawContact
#include "dflyobj.hxx"	// SwVirtFlyDrawObj
#include "pam.hxx"		// SwPosition
#include "flyfrm.hxx"	// SwFlyInCntFrm
#include "rootfrm.hxx"
#include "frmfmt.hxx"	// SwFrmFmt
#include "viewsh.hxx"

#include <vcl/outdev.hxx>
#include <editeng/lrspitem.hxx>
#include <editeng/ulspitem.hxx>
#include <fmtanchr.hxx>
#include <fmtflcnt.hxx>
#include <fmtornt.hxx>
#include <frmatr.hxx>
#include "flyfrms.hxx"
#include "txatbase.hxx"	// SwTxtAttr
#include "porfly.hxx"
#include "porlay.hxx"	// SetFly
#include "inftxt.hxx"	// SwTxtPaintInfo

// OD 2004-05-24 #i28701#
#include <sortedobjs.hxx>


/*************************************************************************
 *				  class SwFlyPortion
 *
 * Wir erwarten ein framelokales SwRect !
 *************************************************************************/

void SwFlyPortion::Paint( const SwTxtPaintInfo& ) const
{
}

/*************************************************************************
 *				   virtual SwFlyPortion::Format()
 *************************************************************************/
sal_Bool SwFlyPortion::Format( SwTxtFormatInfo &rInf )
{
	ASSERT( Fix() >= rInf.X(), "SwFlyPortion::Format: rush hour" );
	// 8537: Tabs muessen expandiert werden.
	if( rInf.GetLastTab() )
		((SwLinePortion*)rInf.GetLastTab())->FormatEOL( rInf );

	// Der Glue wird aufgespannt.
	rInf.GetLast()->FormatEOL( rInf );
    PrtWidth( static_cast<sal_uInt16>(Fix() - rInf.X() + PrtWidth()) );
	if( !Width() )
	{
		ASSERT( Width(), "+SwFlyPortion::Format: a fly is a fly is a fly" );
		Width(1);
	}

	// Restaurierung
	rInf.SetFly( 0 );
	rInf.Width( rInf.RealWidth() );
	rInf.GetParaPortion()->SetFly( sal_True );

	// trailing blank:
	if( rInf.GetIdx() < rInf.GetTxt().Len() && 	1 < rInf.GetIdx()
		&& !rInf.GetRest()
		&& ' ' == rInf.GetChar( rInf.GetIdx() )
		&& ' ' != rInf.GetChar( rInf.GetIdx() - 1 )
		&& ( !rInf.GetLast() || !rInf.GetLast()->IsBreakPortion() ) )
	{
		SetBlankWidth( rInf.GetTxtSize( ' ' ).Width() );
		SetLen( 1 );
	}

    const sal_uInt16 nNewWidth = static_cast<sal_uInt16>(rInf.X() + PrtWidth());
	if( rInf.Width() <= nNewWidth )
	{
		Truncate();
		if( nNewWidth > rInf.Width() )
		{
			PrtWidth( nNewWidth - rInf.Width() );
			SetFixWidth( PrtWidth() );
		}
		return sal_True;
	}
	return sal_False;
}

/*************************************************************************
 *				   virtual SwFlyCntPortion::Format()
 *************************************************************************/
sal_Bool SwFlyCntPortion::Format( SwTxtFormatInfo &rInf )
{
	sal_Bool bFull = rInf.Width() < rInf.X() + PrtWidth();

	if( bFull )
	{
		// 3924: wenn die Zeile voll ist und der zeichengebundene Frame am
		// Anfang der Zeile steht.
		// 5157: nicht wenn einem Fly ausgewichen werden kann!
        // "Begin of line" criteria ( ! rInf.X() ) has to be extended.
        // KerningPortions at beginning of line, e.g., for grid layout
        // must be considered.
        const SwLinePortion* pLastPor = rInf.GetLast();
        const sal_uInt16 nLeft = ( pLastPor &&
                                    ( pLastPor->IsKernPortion() ||
                                      pLastPor->IsErgoSumPortion() ) ) ?
                               pLastPor->Width() :
                               0;

        if( nLeft == rInf.X() && ! rInf.GetFly() )
		{
			Width( rInf.Width() );
			bFull = sal_False; // Damit Notizen noch in dieser Zeile landen
		}
		else
		{
			if( !rInf.GetFly() )
				rInf.SetNewLine( sal_True );
			Width(0);
			SetAscent(0);
			SetLen(0);
            if( rInf.GetLast() )
                rInf.GetLast()->FormatEOL( rInf );

			return bFull;
		}
	}

	rInf.GetParaPortion()->SetFly( sal_True );
	return bFull;
}

/*************************************************************************
 *	SwTxtFrm::MoveFlyInCnt() haengt jetzt die zeichengebundenen Objekte
 *  innerhalb des angegebenen Bereichs um, damit koennen diese vom Master
 *  zum Follow oder umgekehrt wandern.
 *************************************************************************/
void SwTxtFrm::MoveFlyInCnt( SwTxtFrm *pNew, xub_StrLen nStart, xub_StrLen nEnd )
{
    SwSortedObjs *pObjs = 0L;
	if ( 0 != (pObjs = GetDrawObjs()) )
	{
        for ( sal_uInt32 i = 0; GetDrawObjs() && i < pObjs->Count(); ++i )
		{
            // OD 2004-03-29 #i26791#
            // --> OD 2004-07-06 #i28701# - consider changed type of
            // <SwSortedList> entries
            SwAnchoredObject* pAnchoredObj = (*pObjs)[i];
            const SwFmtAnchor& rAnch = pAnchoredObj->GetFrmFmt().GetAnchor();
            if (rAnch.GetAnchorId() == FLY_AS_CHAR)
            {
                const SwPosition* pPos = rAnch.GetCntntAnchor();
                xub_StrLen nIdx = pPos->nContent.GetIndex();
                if ( nIdx >= nStart && nEnd > nIdx )
                {
                    if ( pAnchoredObj->ISA(SwFlyFrm) )
                    {
                        RemoveFly( static_cast<SwFlyFrm*>(pAnchoredObj) );
                        pNew->AppendFly( static_cast<SwFlyFrm*>(pAnchoredObj) );
                    }
                    else if ( pAnchoredObj->ISA(SwAnchoredDrawObject) )
                    {
                        RemoveDrawObj( *pAnchoredObj );
                        pNew->AppendDrawObj( *pAnchoredObj );
                    }
                    --i;
                }
            }
            // <--
		}
	}
}

/*************************************************************************
 *				  SwTxtFrm::CalcFlyPos()
 *************************************************************************/
xub_StrLen SwTxtFrm::CalcFlyPos( SwFrmFmt* pSearch )
{
	SwpHints* pHints = GetTxtNode()->GetpSwpHints();
	ASSERT( pHints, "CalcFlyPos: Why me?" );
	if( !pHints )
		return STRING_LEN;
	SwTxtAttr* pFound = NULL;
    for ( sal_uInt16 i = 0; i < pHints->Count(); i++)
    {
        SwTxtAttr *pHt = pHints->GetTextHint( i );
		if( RES_TXTATR_FLYCNT == pHt->Which() )
		{
			SwFrmFmt* pFrmFmt = pHt->GetFlyCnt().GetFrmFmt();
			if( pFrmFmt == pSearch )
				pFound = pHt;
		}
	}
	ASSERT( pHints, "CalcFlyPos: Not Found!" );
	if( !pFound )
		return STRING_LEN;
	return *pFound->GetStart();
}

/*************************************************************************
 *				   virtual SwFlyCntPortion::Paint()
 *************************************************************************/
void SwFlyCntPortion::Paint( const SwTxtPaintInfo &rInf ) const
{
	if( bDraw )
	{
        if( !((SwDrawContact*)pContact)->GetAnchorFrm() )
		{
            // OD 2004-04-01 #i26791# - no direct positioning of the drawing
            // object is needed.
            SwDrawContact* pDrawContact = static_cast<SwDrawContact*>(pContact);
            pDrawContact->ConnectToLayout();
		}
	}
	else
	{
		// Baseline-Ausgabe !
		// 7922: Bei CompletePaint alles painten
        SwRect aRepaintRect( rInf.GetPaintRect() );

        if ( rInf.GetTxtFrm()->IsRightToLeft() )
            rInf.GetTxtFrm()->SwitchLTRtoRTL( aRepaintRect );

        if ( rInf.GetTxtFrm()->IsVertical() )
            rInf.GetTxtFrm()->SwitchHorizontalToVertical( aRepaintRect );

		if( (GetFlyFrm()->IsCompletePaint() ||
             GetFlyFrm()->Frm().IsOver( aRepaintRect )) &&
			 SwFlyFrm::IsPaint( (SdrObject*)GetFlyFrm()->GetVirtDrawObj(),
								GetFlyFrm()->getRootFrm()->GetCurrShell() ))
		{
			SwRect aRect( GetFlyFrm()->Frm() );
			if( !GetFlyFrm()->IsCompletePaint() )
                aRect._Intersection( aRepaintRect );


            // GetFlyFrm() may change the layout mode at the output device.
            {
                SwLayoutModeModifier aLayoutModeModifier( *rInf.GetOut() );
                GetFlyFrm()->Paint( aRect );
            }
            ((SwTxtPaintInfo&)rInf).GetRefDev()->SetLayoutMode(
                    rInf.GetOut()->GetLayoutMode() );

            // Es hilft alles nichts, im zeichengebundenen Frame kann wer weiss
			// was am OutputDevice eingestellt sein, wir muessen unseren Font
			// wieder hineinselektieren. Dass wir im const stehen, soll uns
			// daran nicht hindern:
			((SwTxtPaintInfo&)rInf).SelectFont();

            // I want to know if this can really happen. So here comes a new
            ASSERT( ! rInf.GetVsh() || rInf.GetVsh()->GetOut() == rInf.GetOut(),
                    "SwFlyCntPortion::Paint: Outdev has changed" )
            if( rInf.GetVsh() )
                ((SwTxtPaintInfo&)rInf).SetOut( rInf.GetVsh()->GetOut() );
		}
	}
}

/*************************************************************************
 *					SwFlyCntPortion::SwFlyCntPortion()
 *
 * Es werden die Masze vom pFly->OutRect() eingestellt.
 * Es erfolgt ein SetBase() !
 *************************************************************************/
// OD 29.07.2003 #110978# - use new datatype for parameter <nFlags>
SwFlyCntPortion::SwFlyCntPortion( const SwTxtFrm& rFrm,
                                  SwFlyInCntFrm *pFly, const Point &rBase,
                                  long nLnAscent, long nLnDescent,
                                  long nFlyAsc, long nFlyDesc,
                                  objectpositioning::AsCharFlags nFlags ) :
	pContact( pFly ),
	bDraw( sal_False ),
	bMax( sal_False ),
	nAlign( 0 )
{
	ASSERT( pFly, "SwFlyCntPortion::SwFlyCntPortion: no SwFlyInCntFrm!" );
	nLineLength = 1;
    nFlags |= AS_CHAR_ULSPACE | AS_CHAR_INIT;
    SetBase( rFrm, rBase, nLnAscent, nLnDescent, nFlyAsc, nFlyDesc, nFlags );
	SetWhichPor( POR_FLYCNT );
}

// OD 29.07.2003 #110978# - use new datatype for parameter <nFlags>
SwFlyCntPortion::SwFlyCntPortion( const SwTxtFrm& rFrm,
                                  SwDrawContact *pDrawContact, const Point &rBase,
                                  long nLnAscent, long nLnDescent,
                                  long nFlyAsc, long nFlyDesc,
                                  objectpositioning::AsCharFlags nFlags ) :
	pContact( pDrawContact ),
	bDraw( sal_True ),
	bMax( sal_False ),
	nAlign( 0 )
{
	ASSERT( pDrawContact, "SwFlyCntPortion::SwFlyCntPortion: no SwDrawContact!" );
    if( !pDrawContact->GetAnchorFrm() )
	{
        // OD 2004-04-01 #i26791# - no direct positioning needed any more
        pDrawContact->ConnectToLayout();
        // --> OD 2005-01-14 #i40333# - follow-up of #i35635#
        // move object to visible layer
        pDrawContact->MoveObjToVisibleLayer( pDrawContact->GetMaster() );
        // <--
	}
	nLineLength = 1;
    nFlags |= AS_CHAR_ULSPACE | AS_CHAR_INIT;

    SetBase( rFrm, rBase, nLnAscent, nLnDescent, nFlyAsc, nFlyDesc, nFlags );

    SetWhichPor( POR_FLYCNT );
}


/*************************************************************************
 *					SwFlyCntPortion::SetBase()
 *
 * Nach dem Setzen des RefPoints muss der Ascent neu berechnet werden,
 * da er von der RelPos abhaengt.
 * pFly->GetRelPos().Y() bezeichnet die relative Position zur Baseline.
 * Bei 0 liegt der obere Rand des FlyCnt auf der Baseline der Zeile.
 *************************************************************************/
// OD 29.07.2003 #110978# - use new datatype for parameter <nFlags>
void SwFlyCntPortion::SetBase( const SwTxtFrm& rFrm, const Point &rBase,
                               long nLnAscent, long nLnDescent,
                               long nFlyAsc, long nFlyDesc,
                               objectpositioning::AsCharFlags nFlags )
{
    // Note: rBase have to be an absolute value

    // OD 28.10.2003 #113049# - use new class to position object
    // determine drawing object
    SdrObject* pSdrObj = 0L;
    if( bDraw )
    {
        // OD 20.06.2003 #108784# - determine drawing object ('master' or 'virtual')
        // by frame.
        pSdrObj = GetDrawContact()->GetDrawObjectByAnchorFrm( rFrm );
        if ( !pSdrObj )
        {
            ASSERT( false, "SwFlyCntPortion::SetBase(..) - No drawing object found by <GetDrawContact()->GetDrawObjectByAnchorFrm( rFrm )>" );
            pSdrObj = GetDrawContact()->GetMaster();
        }
        // --> OD 2007-11-29 #i65798#
        // call <SwAnchoredDrawObject::MakeObjPos()> to assure that flag at
        // the <DrawFrmFmt> and at the <SwAnchoredDrawObject> instance are
        // correctly set.
        if ( pSdrObj )
        {
            GetDrawContact()->GetAnchoredObj( pSdrObj )->MakeObjPos();
        }
        // <--
    }
    else
    {
        pSdrObj = GetFlyFrm()->GetVirtDrawObj();
    }

    // position object
    objectpositioning::SwAsCharAnchoredObjectPosition aObjPositioning(
                                    *pSdrObj,
                                    rBase, nFlags,
                                    nLnAscent, nLnDescent, nFlyAsc, nFlyDesc );

    // OD 2004-04-13 #i26791# - scope of local variable <aObjPosInProgress>
    {
        // OD 2004-04-13 #i26791#
        SwObjPositioningInProgress aObjPosInProgress( *pSdrObj );
        aObjPositioning.CalcPosition();
    }

    SetAlign( aObjPositioning.GetLineAlignment() );

    aRef = aObjPositioning.GetAnchorPos();
    if( nFlags & AS_CHAR_ROTATE )
        SvXSize( aObjPositioning.GetObjBoundRectInclSpacing().SSize() );
    else
        SvLSize( aObjPositioning.GetObjBoundRectInclSpacing().SSize() );
    if( Height() )
    {
        SwTwips nRelPos = aObjPositioning.GetRelPosY();
        if ( nRelPos < 0 )
        {
            nAscent = static_cast<sal_uInt16>(-nRelPos);
            if( nAscent > Height() )
                Height( nAscent );
        }
        else
        {
            nAscent = 0;
            Height( Height() + static_cast<sal_uInt16>(nRelPos) );
        }
    }
    else
    {
        Height( 1 );
        nAscent = 0;
    }
}

/*************************************************************************
 *				virtual SwFlyCntPortion::GetFlyCrsrOfst()
 *************************************************************************/

xub_StrLen SwFlyCntPortion::GetFlyCrsrOfst( const KSHORT nOfst,
	const Point &rPoint, SwPosition *pPos, SwCrsrMoveState* pCMS ) const
{
	// Da die FlyCnt nicht an der Seite haengen, wird ihr
	// GetCrsrOfst() nicht gerufen. Um die Layoutseite
	// von unnoetiger Verwaltung zu entlasten, ruft der Absatz
	// das GetCrsrOfst des FlyFrm, wenn es erforderlich ist.
	Point aPoint( rPoint );
	if( !pPos || bDraw || !( GetFlyFrm()->GetCrsrOfst( pPos, aPoint, pCMS ) ) )
		return SwLinePortion::GetCrsrOfst( nOfst );
	else
		return 0;
}

/*************************************************************************
 *				virtual SwFlyCntPortion::GetCrsrOfst()
 *************************************************************************/

xub_StrLen SwFlyCntPortion::GetCrsrOfst( const KSHORT nOfst ) const
{
	// ASSERT( sal_False, "SwFlyCntPortion::GetCrsrOfst: use GetFlyCrsrOfst()" );
	return SwLinePortion::GetCrsrOfst( nOfst );
}