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112 lines
2.9 KiB
112 lines
2.9 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2004-12-01
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* Description : image curves manipulation methods.
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*
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* Copyright (c) 2004-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ============================================================ */
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#ifndef IMAGECURVES_H
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#define IMAGECURVES_H
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#define ROUND(x) ((int) ((x) + 0.5))
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// TQt includes.
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#include <tqpoint.h>
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#include <tqpointarray.h>
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// KDE includes.
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#include <kurl.h>
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// Digikam includes.
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#include "digikam_export.h"
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namespace Digikam
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{
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class ImageCurvesPriv;
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class DIGIKAM_EXPORT ImageCurves
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{
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public:
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enum CurveType
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{
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CURVE_SMOOTH = 0, // Smooth curve type
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CURVE_FREE // Freehand curve type.
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};
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typedef double CRMatrix[4][4];
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public:
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ImageCurves(bool sixteenBit);
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~ImageCurves();
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// Methods for to manipulate the curves data.
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bool isDirty();
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bool isSixteenBits();
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void curvesReset();
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void curvesChannelReset(int channel);
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void curvesCalculateCurve(int channel);
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float curvesLutFunc(int n_channels, int channel, float value);
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void curvesLutSetup(int nchannels);
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void curvesLutProcess(uchar *srcPR, uchar *destPR, int w, int h);
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// Methods for to set manually the curves values.
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void setCurveValue(int channel, int bin, int val);
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void setCurvePointX(int channel, int point, int x);
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void setCurvePointY(int channel, int point, int y);
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void setCurveType(int channel, CurveType type);
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void setCurvePoint(int channel, int point, const TQPoint& val);
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void setCurvePoints(int channel, const TQPointArray& vals);
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int getCurveValue(int channel, int bin);
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int getCurvePointX(int channel, int point);
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int getCurvePointY(int channel, int point);
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int getCurveType(int channel);
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TQPoint getCurvePoint(int channel, int point);
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TQPointArray getCurvePoints(int channel);
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// Methods for to save/load the curves values to/from a Gimp curves text file.
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bool saveCurvesToGimpCurvesFile(const KURL& fileUrl);
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bool loadCurvesFromGimpCurvesFile(const KURL& fileUrl);
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private:
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void curvesPlotCurve(int channel, int p1, int p2, int p3, int p4);
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void curvesCRCompose(CRMatrix a, CRMatrix b, CRMatrix ab);
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private:
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ImageCurvesPriv* d;
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};
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} // NameSpace Digikam
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#endif /* IMAGECURVES_H */
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