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/*************************************************************************
*
* $RCSfile: porglue.cxx,v $
*
* $Revision: 1.5 $
*
* last change: $Author: fme $ $Date: 2002-02-19 14:57:27 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifdef PRECOMPILED
#include "core_pch.hxx"
#endif
#pragma hdrstop
#include "swrect.hxx"
#include "paratr.hxx" // pTabStop, ADJ*
#include "viewopt.hxx" // SwViewOptions
#include "errhdl.hxx" // ASSERT
#ifndef _SW_PORTIONHANDLER_HXX
#include <SwPortionHandler.hxx>
#endif
#include "txtcfg.hxx"
#include "porglue.hxx"
#include "inftxt.hxx"
#include "porlay.hxx" // SwParaPortion, SetFull
#include "porfly.hxx" // SwParaPortion, SetFull
/*************************************************************************
* class SwGluePortion
*************************************************************************/
SwGluePortion::SwGluePortion( const KSHORT nInitFixWidth )
: nFixWidth( nInitFixWidth )
{
PrtWidth( nFixWidth );
SetWhichPor( POR_GLUE );
}
/*************************************************************************
* virtual SwGluePortion::GetCrsrOfst()
*************************************************************************/
xub_StrLen SwGluePortion::GetCrsrOfst( const KSHORT nOfst ) const
{
if( !GetLen() || nOfst > GetLen() || !Width() )
return SwLinePortion::GetCrsrOfst( nOfst );
else
return nOfst / (Width() / GetLen());
}
/*************************************************************************
* virtual SwGluePortion::GetTxtSize()
*************************************************************************/
SwPosSize SwGluePortion::GetTxtSize( const SwTxtSizeInfo &rInf ) const
{
if( 1 >= GetLen() || rInf.GetLen() > GetLen() || !Width() || !GetLen() )
return SwPosSize(*this);
else
return SwPosSize( (Width() / GetLen()) * rInf.GetLen(), Height() );
}
/*************************************************************************
* virtual SwGluePortion::GetExpTxt()
*************************************************************************/
sal_Bool SwGluePortion::GetExpTxt( const SwTxtSizeInfo &rInf, XubString &rTxt ) const
{
if( GetLen() && rInf.OnWin() &&
rInf.GetOpt().IsBlank() && rInf.IsNoSymbol() )
{
rTxt.Fill( GetLen(), CH_BULLET );
return sal_True;
}
return sal_False;
}
/*************************************************************************
* virtual SwGluePortion::HandlePortion()
*************************************************************************/
void SwGluePortion::HandlePortion( SwPortionHandler& rPH ) const
{
String aString;
rPH.Special( GetLen(), aString, GetWhichPor() );
}
/*************************************************************************
* virtual SwGluePortion::Paint()
*************************************************************************/
void SwGluePortion::Paint( const SwTxtPaintInfo &rInf ) const
{
if( !GetLen() )
return;
if( rInf.GetFont()->IsPaintBlank() )
{
XubString aTxt;
aTxt.Fill( GetFixWidth() / GetLen(), ' ' );
SwTxtPaintInfo aInf( rInf, aTxt );
aInf.DrawText( *this, aTxt.Len(), sal_True );
}
if( rInf.OnWin() && rInf.GetOpt().IsBlank() && rInf.IsNoSymbol() )
{
#ifndef PRODUCT
const xub_Unicode cChar = rInf.GetChar( rInf.GetIdx() );
ASSERT( CH_BLANK == cChar || CH_BULLET == cChar,
"SwGluePortion::Paint: blank expected" );
#endif
if( 1 == GetLen() )
{
String aBullet( CH_BULLET, RTL_TEXTENCODING_MS_1252 );
SwPosSize aBulletSize( rInf.GetTxtSize( aBullet ) );
Point aPos( rInf.GetPos() );
aPos.X() += (Width()/2) - (aBulletSize.Width()/2);
SwTxtPaintInfo aInf( rInf, aBullet );
aInf.SetPos( aPos );
SwTxtPortion aBulletPor;
aBulletPor.Width( aBulletSize.Width() );
aBulletPor.Height( aBulletSize.Height() );
aBulletPor.SetAscent( GetAscent() );
aInf.DrawText( aBulletPor, aBullet.Len(), sal_True );
}
else
{
SwTxtSlotLen aSlot( &rInf, this );
rInf.DrawText( *this, rInf.GetLen(), sal_True );
}
}
}
/*************************************************************************
* SwGluePortion::MoveGlue()
*************************************************************************/
void SwGluePortion::MoveGlue( SwGluePortion *pTarget, const short nPrtGlue )
{
short nPrt = Min( nPrtGlue, GetPrtGlue() );
if( 0 < nPrt )
{
pTarget->AddPrtWidth( nPrt );
SubPrtWidth( nPrt );
}
}
/*************************************************************************
* void SwGluePortion::Join()
*************************************************************************/
void SwGluePortion::Join( SwGluePortion *pVictim )
{
// Die GluePortion wird ausgesogen und weggespuelt ...
AddPrtWidth( pVictim->PrtWidth() );
SetLen( pVictim->GetLen() + GetLen() );
if( Height() < pVictim->Height() )
Height( pVictim->Height() );
AdjFixWidth();
Cut( pVictim );
delete pVictim;
}
/*************************************************************************
* class SwFixPortion
*************************************************************************/
// Wir erwarten ein framelokales SwRect !
SwFixPortion::SwFixPortion( const SwRect &rRect )
:SwGluePortion( KSHORT(rRect.Width()) ), nFix( KSHORT(rRect.Left()) )
{
Height( KSHORT(rRect.Height()) );
SetWhichPor( POR_FIX );
}
SwFixPortion::SwFixPortion(const KSHORT nFixWidth, const KSHORT nFixPos)
: SwGluePortion(nFixWidth), nFix(nFixPos)
{
SetWhichPor( POR_FIX );
}
/*************************************************************************
* class SwMarginPortion
*************************************************************************/
SwMarginPortion::SwMarginPortion( const KSHORT nFixWidth )
:SwGluePortion( nFixWidth )
{
SetWhichPor( POR_MARGIN );
}
/*************************************************************************
* SwMarginPortion::AdjustRight()
*
* In der umschliessenden Schleife werden alle Portions durchsucht,
* dabei werden erst die am Ende liegenden GluePortions verarbeitet.
* Das Ende wird nach jeder Schleife nach vorne verlegt, bis keine
* GluePortions mehr vorhanden sind.
* Es werden immer GluePortion-Paare betrachtet (pLeft und pRight),
* wobei Textportions zwischen pLeft und pRight hinter pRight verschoben
* werden, wenn pRight genuegend Glue besitzt. Bei jeder Verschiebung
* wandert ein Teil des Glues von pRight nach pLeft.
* Im naechsten Schleifendurchlauf ist pLeft das pRight und das Spiel
* beginnt von vorne.
*************************************************************************/
void SwMarginPortion::AdjustRight( const SwLineLayout *pCurr )
{
SwGluePortion *pRight = 0;
BOOL bNoMove = 0 != pCurr->GetpKanaComp();
while( pRight != this )
{
// 1) Wir suchen den linken Glue
SwLinePortion *pPos = (SwLinePortion*)this;
SwGluePortion *pLeft = 0;
while( pPos )
{
DBG_LOOP;
if( pPos->InFixMargGrp() )
pLeft = (SwGluePortion*)pPos;
pPos = pPos->GetPortion();
if( pPos == pRight)
pPos = 0;
}
// Zwei nebeneinander liegende FlyPortions verschmelzen
if( pRight && pLeft->GetPortion() == pRight )
{
pRight->MoveAllGlue( pLeft );
pRight = 0;
}
KSHORT nRightGlue = pRight && 0 < pRight->GetPrtGlue()
? KSHORT(pRight->GetPrtGlue()) : 0;
// 2) linken und rechten Glue ausgleichen
// Bei Tabs haengen wir nix um ...
if( pLeft && nRightGlue && !pRight->InTabGrp() )
{
// pPrev ist die Portion, die unmittelbar vor pRight liegt.
SwLinePortion *pPrev = pRight->FindPrevPortion( pLeft );
if ( pRight->IsFlyPortion() && pRight->GetLen() )
{
SwFlyPortion *pFly = (SwFlyPortion *)pRight;
if ( pFly->GetBlankWidth() < nRightGlue )
{
// Hier entsteht eine neue TxtPortion, die dass zuvor
// vom Fly verschluckte Blank reaktiviert.
nRightGlue -= pFly->GetBlankWidth();
pFly->SubPrtWidth( pFly->GetBlankWidth() );
pFly->SetLen( 0 );
SwTxtPortion *pNewPor = new SwTxtPortion;
pNewPor->SetLen( 1 );
pNewPor->Height( pFly->Height() );
pNewPor->Width( pFly->GetBlankWidth() );
pFly->Insert( pNewPor );
}
else
pPrev = pLeft;
}
while( pPrev != pLeft )
{
DBG_LOOP;
if( bNoMove || pPrev->PrtWidth() >= nRightGlue ||
pPrev->InHyphGrp() || pPrev->IsKernPortion() )
{
// Die Portion, die vor pRight liegt kann nicht
// verschoben werden, weil kein Glue mehr vorhanden ist.
// Wir fuehren die Abbruchbedingung herbei:
pPrev = pLeft;
}
else
{
nRightGlue -= pPrev->PrtWidth();
// pPrev wird hinter pRight verschoben.
// Dazu wird der Gluewert zwischen pRight und pLeft
// ausgeglichen.
pRight->MoveGlue( pLeft, short( pPrev->PrtWidth() ) );
// Jetzt wird die Verkettung gerichtet.
SwLinePortion *pPrevPrev = pPrev->FindPrevPortion( pLeft );
pPrevPrev->SetPortion( pRight );
pPrev->SetPortion( pRight->GetPortion() );
pRight->SetPortion( pPrev );
if ( pPrev->GetPortion() && pPrev->InTxtGrp()
&& pPrev->GetPortion()->IsHolePortion() )
{
SwHolePortion *pHolePor =
(SwHolePortion*)pPrev->GetPortion();
if ( !pHolePor->GetPortion() ||
!pHolePor->GetPortion()->InFixMargGrp() )
{
pPrev->AddPrtWidth( pHolePor->GetBlankWidth() );
pPrev->SetLen( pPrev->GetLen() + 1 );
pPrev->SetPortion( pHolePor->GetPortion() );
delete pHolePor;
}
}
pPrev = pPrevPrev;
}
}
}
// Wenn es keinen linken Glue mehr gibt, wird die Abbruchbedingung
// herbeigefuehrt.
pRight = pLeft ? pLeft : (SwGluePortion*)this;
}
}
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