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koffice/chalk/colorspaces/wet/wetphysicsfilter.h

88 rivejä
2.8 KiB

/*
* This file is part of Chalk
*
* Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
*
* 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 of the License, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef WET_PHYSICS_FILTER_H
#define WET_PHYSICS_FILTER_H
#include <tdelocale.h>
#include <kis_filter.h>
#include <kis_types.h>
#include "kis_wet_colorspace.h"
class KisID;
class TQRect;
/**
* The wet physics filter must be run regularly from a timer
* or preferably from a thread. Every time the filter is processed
* the paint flows; every third time, the paint is adsorbed unto the
* lower pixel and dried.
*
* Note: this might also be implemented as three separate filters.
* That might even be better.
*/
class WetPhysicsFilter: public KisFilter
{
public:
WetPhysicsFilter();
public:
virtual void process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration*, const TQRect& r);
static inline KisID id() { return KisID("wetphysics", i18n("Watercolor Physics Simulation Filter")); };
virtual bool supportsPainting() { return false; }
virtual bool supportsPreview() { return false; }
virtual ColorSpaceIndependence colorSpaceIndependence() { return FULLY_INDEPENDENT; };
virtual bool workWith(KisColorSpace* cs) { return (cs->id() == KisID("WET")); };
private:
void flow(KisPaintDeviceSP src, KisPaintDeviceSP dst, const TQRect & r);
void dry(KisPaintDeviceSP src, KisPaintDeviceSP dst, const TQRect & r);
// Move stuff from the upperlayer to the lower layer. This is filter-level stuff.
void adsorb(KisPaintDeviceSP src, KisPaintDeviceSP dst, const TQRect & r);
// NOTE: this does not set the height fields
void combinePixels (WetPixDbl *dst, WetPixDbl *src1, WetPixDbl *src2);
void dilutePixel (WetPixDbl *dst, WetPix *src, double dilution);
void reducePixel (WetPixDbl *dst, WetPix *src, double dilution);
/*
* Allows visualization of adsorption by rotating the hue 120 degrees
* layer-merge combining. src1 is the top layer
*
* This does not set the dst h or w fields.
*/
void mergePixel (WetPixDbl *dst, WetPixDbl *src1, double dilution1, WetPixDbl *src2);
private:
TQ_INT32 m_adsorbCount;
};
#endif