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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-05-25
* Description : Raindrop threaded image filter.
*
* Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
* Copyright (C) 2006-2007 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software Foundation;
* either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* ============================================================ */
#ifndef RAINDROP_H
#define RAINDROP_H
// Digikam includes.
#include "dimgthreadedfilter.h"
class TQRect;
namespace DigikamRainDropImagesPlugin
{
class RainDrop : public Digikam::DImgThreadedFilter
{
public:
RainDrop(Digikam::DImg *orgImage, TQObject *parent=0, int drop=80,
int amount=150, int coeff=30, TQRect *selection=0L);
~RainDrop(){};
private:
virtual void filterImage(void);
void rainDropsImage(Digikam::DImg *orgImage, Digikam::DImg *destImage, int MinDropSize, int MaxDropSize,
int Amount, int Coeff, bool bLimitRange, int progressMin, int progressMax);
bool CreateRainDrop(uchar *pBits, int Width, int Height, bool sixteenBit, int bytesDepth,
uchar *pResBits, uchar* pStatusBits,
int X, int Y, int DropSize, double Coeff, bool bLimitRange);
bool CanBeDropped(int Width, int Height, uchar *pStatusBits, int X, int Y, int DropSize, bool bLimitRange);
bool SetDropStatusBits (int Width, int Height, uchar *pStatusBits, int X, int Y, int DropSize);
// A color is represented in RGB value (e.g. 0xFFFFFF is white color).
// But R, G and B values has 256 values to be used so, this function analize
// the value and limits to this range.
inline int LimitValues8(int ColorValue)
{
if (ColorValue > 255) ColorValue = 255;
if (ColorValue < 0) ColorValue = 0;
return ColorValue;
};
inline int LimitValues16(int ColorValue)
{
if (ColorValue > 65535) ColorValue = 65535;
if (ColorValue < 0) ColorValue = 0;
return ColorValue;
};
inline bool IsInside (int Width, int Height, int X, int Y)
{
bool bIsWOk = ((X < 0) ? false : (X >= Width ) ? false : true);
bool bIsHOk = ((Y < 0) ? false : (Y >= Height) ? false : true);
return (bIsWOk && bIsHOk);
};
inline int Offset(int Width, int X, int Y, int bytesDepth)
{
return (Y * Width * bytesDepth + X * bytesDepth);
};
private:
int m_drop;
int m_amount;
int m_coeff;
int m_selectedX;
int m_selectedY;
int m_selectedW;
int m_selectedH;
};
} // NameSpace DigikamRainDropImagesPlugin
#endif /* RAINDROP_H */
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