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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* 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 <vcl/svapp.hxx>
#include <vcl/graph.hxx>
#include <vcl/bmpacc.hxx>
#include <vcl/msgbox.hxx>
#include <svl/solar.hrc>
#include <svtools/fltcall.hxx>
#include <vcl/FilterConfigItem.hxx>
//============================ PBMWriter ==================================
class PBMWriter {
private:
SvStream& m_rOStm; // Die auszugebende PBM-Datei
sal_uInt16 mpOStmOldModus;
sal_Bool mbStatus;
sal_Int32 mnMode; // 0 -> raw, 1-> ascii
BitmapReadAccess* mpAcc;
sal_uLong mnWidth, mnHeight; // Bildausmass in Pixeln
sal_Bool ImplWriteHeader();
void ImplWriteBody();
void ImplWriteNumber( sal_Int32 );
com::sun::star::uno::Reference< com::sun::star::task::XStatusIndicator > xStatusIndicator;
public:
PBMWriter(SvStream &rPBM);
~PBMWriter();
sal_Bool WritePBM( const Graphic& rGraphic, FilterConfigItem* pFilterConfigItem );
};
//=================== Methoden von PBMWriter ==============================
PBMWriter::PBMWriter(SvStream &rPBM)
: m_rOStm(rPBM)
, mbStatus(sal_True)
, mpAcc(NULL)
{
}
// ------------------------------------------------------------------------
PBMWriter::~PBMWriter()
{
}
// ------------------------------------------------------------------------
sal_Bool PBMWriter::WritePBM( const Graphic& rGraphic, FilterConfigItem* pFilterConfigItem )
{
if ( pFilterConfigItem )
{
mnMode = pFilterConfigItem->ReadInt32( String( RTL_CONSTASCII_USTRINGPARAM( "FileFormat" ) ), 0 );
xStatusIndicator = pFilterConfigItem->GetStatusIndicator();
if ( xStatusIndicator.is() )
{
rtl::OUString aMsg;
xStatusIndicator->start( aMsg, 100 );
}
}
BitmapEx aBmpEx( rGraphic.GetBitmapEx() );
Bitmap aBmp = aBmpEx.GetBitmap();
aBmp.Convert( BMP_CONVERSION_1BIT_THRESHOLD );
mpOStmOldModus = m_rOStm.GetNumberFormatInt();
m_rOStm.SetNumberFormatInt( NUMBERFORMAT_INT_BIGENDIAN );
mpAcc = aBmp.AcquireReadAccess();
if( mpAcc )
{
if ( ImplWriteHeader() )
ImplWriteBody();
aBmp.ReleaseAccess( mpAcc );
}
else
mbStatus = sal_False;
m_rOStm.SetNumberFormatInt( mpOStmOldModus );
if ( xStatusIndicator.is() )
xStatusIndicator->end();
return mbStatus;
}
// ------------------------------------------------------------------------
sal_Bool PBMWriter::ImplWriteHeader()
{
mnWidth = mpAcc->Width();
mnHeight = mpAcc->Height();
if ( mnWidth && mnHeight )
{
if ( mnMode == 0 )
m_rOStm << "P4\x0a";
else
m_rOStm << "P1\x0a";
ImplWriteNumber( mnWidth );
m_rOStm << (sal_uInt8)32;
ImplWriteNumber( mnHeight );
m_rOStm << (sal_uInt8)10;
}
else mbStatus = sal_False;
return mbStatus;
}
// ------------------------------------------------------------------------
void PBMWriter::ImplWriteBody()
{
if ( mnMode == 0 )
{
sal_uInt8 nBYTE = 0;
for ( sal_uLong y = 0; y < mnHeight; y++ )
{
sal_uLong x;
for ( x = 0; x < mnWidth; x++ )
{
nBYTE <<= 1;
if (!(mpAcc->GetPixel( y, x ) & 1 ) )
nBYTE++;
if ( ( x & 7 ) == 7 )
m_rOStm << nBYTE;
}
if ( ( x & 7 ) != 0 )
m_rOStm << (sal_uInt8)( nBYTE << ( ( x ^ 7 ) + 1 ) );
}
}
else
{
int nxCount;
for ( sal_uLong y = 0; y < mnHeight; y++ )
{
nxCount = 70;
for ( sal_uLong x = 0; x < mnWidth; x++ )
{
if (!( --nxCount ) )
{
nxCount = 69;
m_rOStm << (sal_uInt8)10;
}
m_rOStm << (sal_uInt8)( ( mpAcc->GetPixel( y, x ) ^ 1 ) + '0' ) ;
}
m_rOStm << (sal_uInt8)10;
}
}
}
// ------------------------------------------------------------------------
// eine Dezimalzahl im ASCII format wird in den Stream geschrieben
void PBMWriter::ImplWriteNumber(sal_Int32 nNumber)
{
const rtl::OString aNum(rtl::OString::valueOf(nNumber));
m_rOStm << aNum.getStr();
}
// ------------------------------------------------------------------------
// ---------------------
// - exported function -
// ---------------------
#ifdef DISABLE_DYNLOADING
#define GraphicExport epbGraphicExport
#endif
extern "C" SAL_DLLPUBLIC_EXPORT sal_Bool SAL_CALL
GraphicExport(SvStream& rStream, Graphic& rGraphic, FilterConfigItem* pFilterConfigItem, sal_Bool)
{
PBMWriter aPBMWriter(rStream);
return aPBMWriter.WritePBM( rGraphic, pFilterConfigItem );
}
// ------------------------------------------------------------------------
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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