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/*************************************************************************
 *
 *  $RCSfile: txtpaint.cxx,v $
 *
 *  $Revision: 1.5 $
 *
 *  last change: $Author: fme $ $Date: 2002-03-21 09:18:26 $
 *
 *  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 "txtpaint.hxx"
#include "swrect.hxx"
#include "rootfrm.hxx"

/*************************************************************************
 *                      SwSaveClip::Reset()
 *************************************************************************/

void SwSaveClip::Reset()
{
    // Der alte Zustand wird wieder hergestellt.
    if( pOut && bChg )
    {
        if ( pOut->GetConnectMetaFile() )
            pOut->Pop();
        else
        {
            if( bOn )
                pOut->SetClipRegion( aClip );
            else
                pOut->SetClipRegion();
        }
        bChg = sal_False;
    }
}

/*************************************************************************
 *                      SwSaveClip::_ChgClip()
 *************************************************************************/

#ifdef VERTICAL_LAYOUT
void SwSaveClip::_ChgClip( const SwRect &rRect, const SwTxtFrm* pFrm,
                           sal_Bool bEnlargeRect )
#else
void SwSaveClip::_ChgClip( const SwRect &rRect, sal_Bool bEnlargeRect )
#endif
{
#ifdef VERTICAL_LAYOUT
    SwRect aOldRect( rRect );
    const sal_Bool bVertical = pFrm && pFrm->IsVertical();

#ifdef BIDI
    if ( pFrm && pFrm->IsRightToLeft() )
        pFrm->SwitchLTRtoRTL( (SwRect&)rRect );
#endif

    if ( bVertical )
        pFrm->SwitchHorizontalToVertical( (SwRect&)rRect );
#endif

    if ( !pOut || (!rRect.HasArea() && !pOut->IsClipRegion()) )
#ifdef VERTICAL_LAYOUT
    {
        (SwRect&)rRect = aOldRect;
        return;
    }
#else
        return;
#endif

    if ( !bChg )
    {
        if ( pOut->GetConnectMetaFile() )
            pOut->Push();
        else if ( bOn )
            aClip = pOut->GetClipRegion();
    }

    if ( !rRect.HasArea() )
        pOut->SetClipRegion();
    else
    {
        Rectangle aRect( rRect.SVRect() );

#ifdef VERTICAL_LAYOUT
        // Having underscores in our line, we enlarged the repaint area
        // (see frmform.cxx) because for some fonts it could be too small.
        // Consequently, we have to enlarge the clipping rectangle as well.
        if ( bEnlargeRect && ! bVertical )
#else
        if ( bEnlargeRect )
#endif
            aRect.Bottom() += 40;

        // Wenn das ClipRect identisch ist, passiert nix.
        if( pOut->IsClipRegion() ) // kein && wg Mac
        {
            if ( aRect == pOut->GetClipRegion().GetBoundRect() )
#ifdef VERTICAL_LAYOUT
            {
                (SwRect&)rRect = aOldRect;
                return;
            }
#else
                return;
#endif
        }

        if( SwRootFrm::HasSameRect( rRect ) )
            pOut->SetClipRegion();
        else
        {
            const Region aClipRegion( aRect );
            pOut->SetClipRegion( aClipRegion );
#ifdef DEBUG
            Rectangle aDbgRect = pOut->GetClipRegion().GetBoundRect();
#endif
        }
#ifdef DEBUG
#ifndef PRODUCT
        static sal_Bool bDbg = sal_False;
        if( bDbg )
        {
            DbgBackColor aDbg( pOut, bDbg, COL_RED );
            pOut->DrawRect( aRect );
        }
#endif
#endif
    }
    bChg = sal_True;

#ifdef VERTICAL_LAYOUT
    (SwRect&)rRect = aOldRect;
#endif

}