/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: svimbase.hxx,v $
 *
 *  $Revision: 1.3 $
 *
 *  last change: $Author: rt $ $Date: 2005/09/08 18:58:47 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 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
 *
 ************************************************************************/

#ifndef _SVIMBASE_HXX
#define _SVIMBASE_HXX

#ifndef _SV_BITMAP_HXX //autogen
#include <vcl/bitmap.hxx>
#endif
#ifndef _SV_SALBTYPE_HXX //autogen
#include <vcl/salbtype.hxx>
#endif

// -----------
// - Defines -
// -----------

#ifdef WIN
#define _SVHUGE huge
#else
#define _SVHUGE
#endif

// ----------------
// - SimDepthType -
// ----------------

enum SimDepthType
{
	SIM_DEPTH_1,
	SIM_DEPTH_4,
	SIM_DEPTH_8,
	SIM_DEPTH_24
};

// ------------
// - SimColor -
// ------------

struct SimColor
{
	BYTE cBlue;
	BYTE cGreen;
	BYTE cRed;
};

// ------------------------------------------------------------------------

inline BOOL operator==( const SimColor& rCol1, const SimColor& rCol2 )
{
	return ( ( rCol1.cRed == rCol2.cRed ) &&
			 ( rCol1.cGreen == rCol2.cGreen ) &&
			 ( rCol1.cBlue == rCol2.cBlue ) );
}

// --------------
// - SimPalette -
// --------------

struct SimPalette
{
	ULONG		nColors;
	SimColor	aColorArray[ 256 ];
};

// ---------------
// - SvImageBase -
// ---------------

class SfxViewFrame;
class SfxProgress;

class SvImageBase
{
private:

	Bitmap				aOutBitmap;
	HPBYTE				pArray1;
	HPBYTE				pArray2;
	HPBYTE				pArray3;
	HPBYTE				pArray4;
	HPBYTE				pOrgArray;
	HPBYTE				pDestArray;
	SimPalette*			pPal1;
	SimPalette*			pPal2;
	SimPalette*			pPal3;
	SimPalette*			pPal4;
	ULONG				nWidth1;
	ULONG				nWidth2;
	ULONG				nWidth3;
	ULONG				nWidth4;
	ULONG				nHeight1;
	ULONG				nHeight2;
	ULONG				nHeight3;
	ULONG				nHeight4;
	ULONG				nAlignedWidth1;
	ULONG				nAlignedWidth2;
	ULONG				nAlignedWidth3;
	ULONG				nAlignedWidth4;
	ULONG				nWhichOrg;
	SimDepthType		eOrgDepth;
	SimDepthType		eUndoDepth;
	SimDepthType		eRedoDepth;
	BOOL				bIsUndo;
	BOOL				bIsRedo;
	BOOL				bCreateUndo;
	BOOL				bValid;
	BOOL				bDitherAll;

	HPBYTE				BitmapToArray24( const Bitmap& rBitmap, ULONG* pWidth,
										 ULONG* pHeight, ULONG* pAlignedWidth,
										 SfxViewFrame *pFrame = NULL );
	BOOL				Array24ToBitmap( HPBYTE pArray, Bitmap &rBitmap,
										 const ULONG nWidth, const ULONG nHeight,
										 const ULONG nColorCount = 256,
										 ULONG nLast = 0, SfxProgress* pProgress = NULL );

	Bitmap				CreateSaveBitmap( const SimDepthType eDepth, SfxViewFrame *pFrame = NULL );

	HPBYTE				CreateArray24( ULONG nWidth, ULONG nHeight );
	void				DeleteArray( HPBYTE pArray );

						SvImageBase(const SvImageBase& rSvImageBase);
	const SvImageBase&  operator=(const SvImageBase& rSvImageBase);

public:

						SvImageBase();
						SvImageBase( const Bitmap& rBitmap,
									 const ULONG nColorCount = 256,
									 ULONG nLast = 0, SfxProgress* pProgress = NULL );
						~SvImageBase();

	BOOL				IsValid() { return bValid; }

	ULONG				GetOrgWidth() const { return nWhichOrg == 1 ? nWidth1 : nWidth2; }
	ULONG				GetDestWidth() const { return nWhichOrg == 1 ? nWidth2 : nWidth1; }

	ULONG				GetOrgHeight() const { return nWhichOrg == 1 ? nHeight1 : nHeight2; }
	ULONG				GetDestHeight() const { return nWhichOrg == 1 ? nHeight2 : nHeight1; }

	ULONG				GetOrgAlignedWidth() const { return nWhichOrg == 1 ? nAlignedWidth1 : nAlignedWidth2; }
	ULONG				GetDestAlignedWidth() const { return nWhichOrg == 1 ? nAlignedWidth2 : nAlignedWidth1; }

	ULONG				GetOrgAlignedSize() const { return GetOrgAlignedWidth() * GetOrgHeight(); }
	ULONG				GetDestAlignedSize() const { return GetDestAlignedWidth() * GetDestHeight(); }

	// Farbtiefe des Ausgangsbildes ermitteln und setzen
	SimDepthType		GetDepth() const { return eOrgDepth; }
	void				SetDepth( const SimDepthType eDepth ) { eOrgDepth = eDepth; }

	// Farbtiefen nach Undo und Redo ermitteln und setzen
	SimDepthType		GetUndoDepth() const { return eUndoDepth; }
	void				SetUndoDepth(const SimDepthType eDepth) { eUndoDepth = eDepth; }

	SimDepthType		GetRedoDepth() const { return eRedoDepth; }
	void				SetRedoDepth(const SimDepthType eDepth) { eRedoDepth = eDepth; }

	// Vor- und Ruecklauf der Bildverarbeitung
	BOOL				BeginProcessing( BOOL bUndo = TRUE );
	void				EndProcessing();

	BOOL				BeginProcessingExt(ULONG nWidth, ULONG nHeight, BOOL bUndo = TRUE);
	void				EndProcessingExt() { EndProcessing(); }

	// Zeiger auf Arrays zur Verfuegung stellen
	HPBYTE				GetOrgPointer() { return pOrgArray; }
	HPBYTE				GetDestPointer() { return pDestArray; }

	// DIB-Erzeugung fuer Anzeige
	BOOL				CreateOutBitmap( const ULONG nColorCount = 256, ULONG nLast = 0,
										 SfxProgress* pProgress = NULL );

	// Undo-Verwaltung
	BOOL				DoUndo( SfxProgress* pProgress = NULL );
	BOOL				DoRedo( SfxProgress* pProgress = NULL );

	// DIB-Rueckgabe fuer Anzeige
	const Bitmap&		GetOutBitmap() const;

	// DIB-Rueckgabe fuer Speicherung
	Bitmap				GetSaveBitmap();

	// Palette besorgen
	SimPalette*			GetOrgPalette() const { return nWhichOrg == 1 ? pPal1 : pPal2; }
	SimPalette*			GetDestPalette() const { return nWhichOrg == 1 ? pPal2 : pPal1; }
};

// ----------------
// - DitherBitmap -
// ----------------

BOOL DitherBitmap( Bitmap& rBitmap, BOOL bDitherAlways = FALSE );

#endif // _SVIMBASE_HXX
