diff options
Diffstat (limited to 'filter/source/graphicfilter/expm/expm.cxx')
| -rw-r--r-- | filter/source/graphicfilter/expm/expm.cxx | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/filter/source/graphicfilter/expm/expm.cxx b/filter/source/graphicfilter/expm/expm.cxx new file mode 100644 index 000000000000..cd05331e5ade --- /dev/null +++ b/filter/source/graphicfilter/expm/expm.cxx @@ -0,0 +1,302 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * 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_filter.hxx" + +#include <vcl/graph.hxx> +#include <vcl/bmpacc.hxx> +#include <svtools/fltcall.hxx> + +//============================ XPMWriter ================================== + +class XPMWriter { + +private: + + SvStream* mpOStm; // Die auszugebende XPM-Datei + USHORT mpOStmOldModus; + + BOOL mbStatus; + BOOL mbTrans; + BitmapReadAccess* mpAcc; + ULONG mnWidth, mnHeight; // Bildausmass in Pixeln + USHORT mnColors; + + com::sun::star::uno::Reference< com::sun::star::task::XStatusIndicator > xStatusIndicator; + + void ImplCallback( USHORT nPercent ); + BOOL ImplWriteHeader(); + void ImplWritePalette(); + void ImplWriteColor( USHORT ); + void ImplWriteBody(); + void ImplWriteNumber( sal_Int32 ); + void ImplWritePixel( ULONG ); + +public: + XPMWriter(); + ~XPMWriter(); + + BOOL WriteXPM( const Graphic& rGraphic, SvStream& rXPM, FilterConfigItem* pFilterConfigItem ); +}; + +//=================== Methoden von XPMWriter ============================== + +XPMWriter::XPMWriter() : + mbStatus ( TRUE ), + mbTrans ( FALSE ), + mpAcc ( NULL ) +{ +} + +// ------------------------------------------------------------------------ + +XPMWriter::~XPMWriter() +{ +} + +// ------------------------------------------------------------------------ + +void XPMWriter::ImplCallback( USHORT nPercent ) +{ + if ( xStatusIndicator.is() ) + { + if ( nPercent <= 100 ) + xStatusIndicator->setValue( nPercent ); + } +} + +// ------------------------------------------------------------------------ + +BOOL XPMWriter::WriteXPM( const Graphic& rGraphic, SvStream& rXPM, FilterConfigItem* pFilterConfigItem) +{ + Bitmap aBmp; + + mpOStm = &rXPM; + + if ( pFilterConfigItem ) + { + xStatusIndicator = pFilterConfigItem->GetStatusIndicator(); + if ( xStatusIndicator.is() ) + { + rtl::OUString aMsg; + xStatusIndicator->start( aMsg, 100 ); + } + } + + BitmapEx aBmpEx( rGraphic.GetBitmapEx() ); + aBmp = aBmpEx.GetBitmap(); + + if ( rGraphic.IsTransparent() ) // event. transparente Farbe erzeugen + { + mbTrans = TRUE; + if ( aBmp.GetBitCount() >= 8 ) // wenn noetig Bild auf 8 bit konvertieren + aBmp.Convert( BMP_CONVERSION_8BIT_TRANS ); + else + aBmp.Convert( BMP_CONVERSION_4BIT_TRANS ); + aBmp.Replace( aBmpEx.GetMask(), BMP_COL_TRANS ); + } + else + { + if ( aBmp.GetBitCount() > 8 ) // wenn noetig Bild auf 8 bit konvertieren + aBmp.Convert( BMP_CONVERSION_8BIT_COLORS ); + } + mpAcc = aBmp.AcquireReadAccess(); + if ( mpAcc ) + { + mnColors = mpAcc->GetPaletteEntryCount(); + mpOStmOldModus = mpOStm->GetNumberFormatInt(); + mpOStm->SetNumberFormatInt( NUMBERFORMAT_INT_BIGENDIAN ); + + if ( ImplWriteHeader() ) + { + ImplWritePalette(); + ImplWriteBody(); + *mpOStm << "\x22XPMENDEXT\x22\x0a};"; + } + aBmp.ReleaseAccess( mpAcc ); + } + else + mbStatus = FALSE; + + mpOStm->SetNumberFormatInt( mpOStmOldModus ); + + if ( xStatusIndicator.is() ) + xStatusIndicator->end(); + + return mbStatus; +} + +// ------------------------------------------------------------------------ + +BOOL XPMWriter::ImplWriteHeader() +{ + mnWidth = mpAcc->Width(); + mnHeight = mpAcc->Height(); + if ( mnWidth && mnHeight && mnColors ) + { + *mpOStm << "/* XPM */\x0astatic char * image[] = \x0a{\x0a\x22"; + ImplWriteNumber( mnWidth ); + *mpOStm << (BYTE)32; + ImplWriteNumber( mnHeight ); + *mpOStm << (BYTE)32; + ImplWriteNumber( mnColors ); + *mpOStm << (BYTE)32; + ImplWriteNumber( ( mnColors > 26 ) ? 2 : 1 ); + *mpOStm << "\x22,\x0a"; + } + else mbStatus = FALSE; + return mbStatus; +} + +// ------------------------------------------------------------------------ + +void XPMWriter::ImplWritePalette() +{ + USHORT nTransIndex = 0xffff; + + if ( mbTrans ) + nTransIndex = mpAcc->GetBestMatchingColor( BMP_COL_TRANS ); + for ( USHORT i = 0; i < mnColors; i++ ) + { + *mpOStm << "\x22"; + ImplWritePixel( i ); + *mpOStm << (BYTE)32; + if ( nTransIndex != i ) + { + ImplWriteColor( i ); + *mpOStm << "\x22,\x0a"; + } + else + *mpOStm << "c none\x22,\x0a"; + } +} + +// ------------------------------------------------------------------------ + +void XPMWriter::ImplWriteBody() +{ + for ( ULONG y = 0; y < mnHeight; y++ ) + { + ImplCallback( (USHORT)( ( 100 * y ) / mnHeight ) ); // processing output in percent + *mpOStm << (BYTE)0x22; + for ( ULONG x = 0; x < mnWidth; x++ ) + { + ImplWritePixel( (BYTE)(mpAcc->GetPixel( y, x ) ) ); + } + *mpOStm << "\x22,\x0a"; + } +} + +// ------------------------------------------------------------------------ +// eine Dezimalzahl im ASCII format wird in den Stream geschrieben + +void XPMWriter::ImplWriteNumber( sal_Int32 nNumber ) +{ + const ByteString aNum( ByteString::CreateFromInt32( nNumber ) ); + + for( sal_Int16 n = 0UL, nLen = aNum.Len(); n < nLen; n++ ) + *mpOStm << aNum.GetChar( n ); + +} + +// ------------------------------------------------------------------------ + +void XPMWriter::ImplWritePixel( ULONG nCol ) +{ + if ( mnColors > 26 ) + { + BYTE nDiff = (BYTE) ( nCol / 26 ); + *mpOStm << (BYTE)( nDiff + 'A' ); + *mpOStm << (BYTE)( nCol - ( nDiff*26 ) + 'A' ); + } + else + *mpOStm << (BYTE)( nCol + 'A' ); +} + +// ------------------------------------------------------------------------ +// ein Farbwert wird im Hexadezimalzahlformat in den Stream geschrieben +void XPMWriter::ImplWriteColor( USHORT nNumber ) +{ + ULONG nTmp; + BYTE j; + + *mpOStm << "c #"; // # zeigt einen folgenden Hexwert an + const BitmapColor& rColor = mpAcc->GetPaletteColor( nNumber ); + nTmp = ( rColor.GetRed() << 16 ) | ( rColor.GetGreen() << 8 ) | rColor.GetBlue(); + for ( signed char i = 20; i >= 0 ; i-=4 ) + { + if ( ( j = (BYTE)( nTmp >> i ) & 0xf ) > 9 ) + j += 'A' - 10; + else + j += '0'; + *mpOStm << j; + } +} + +// ------------------------------------------------------------------------ + +// --------------------- +// - exported function - +// --------------------- + +extern "C" BOOL __LOADONCALLAPI GraphicExport( SvStream& rStream, Graphic& rGraphic, FilterConfigItem* pFilterConfigItem, BOOL ) +{ + XPMWriter aXPMWriter; + + return aXPMWriter.WriteXPM( rGraphic, rStream, pFilterConfigItem ); +} + +#ifndef GCC +#endif + +// --------------- +// - Win16 trash - +// --------------- + +#ifdef WIN + +static HINSTANCE hDLLInst = 0; + +extern "C" int CALLBACK LibMain( HINSTANCE hDLL, WORD, WORD nHeap, LPSTR ) +{ + if ( nHeap ) + UnlockData( 0 ); + + hDLLInst = hDLL; + + return TRUE; +} + +// ------------------------------------------------------------------------ + +extern "C" int CALLBACK WEP( int ) +{ + return 1; +} + +#endif |