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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2004-07-20
* Description : image histogram adjust levels.
*
* Copyright (C) 2004-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
*
* 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 ADJUSTLEVELS_H
#define ADJUSTLEVELS_H
// Digikam includes.
#include "imagedlgbase.h"
#include "dimg.h"
class TQComboBox;
class TQSpinBox;
class TQPushButton;
class TQHButtonGroup;
class KDoubleSpinBox;
class KGradientSelector;
class KDoubleNumInput;
namespace Digikam
{
class HistogramWidget;
class ImageWidget;
class ImageLevels;
}
namespace DigikamAdjustLevelsImagesPlugin
{
class AdjustLevelDialog : public Digikam::ImageDlgBase
{
TQ_OBJECT
public:
AdjustLevelDialog(TQWidget *parent);
~AdjustLevelDialog();
private:
void readUserSettings();
void writeUserSettings();
void resetValues();
void finalRendering();
void adjustSliders(int minIn, double gamIn, int maxIn, int minOut, int maxOut);
bool eventFilter(TQObject *o, TQEvent *e);
private slots:
void slotUser2();
void slotUser3();
void slotEffect();
void slotResetCurrentChannel();
void slotAutoLevels();
void slotChannelChanged(int channel);
void slotScaleChanged(int scale);
void slotAdjustSliders();
void slotGammaInputchanged(double val);
void slotAdjustMinInputSpinBox(int val);
void slotAdjustMaxInputSpinBox(int val);
void slotAdjustMinOutputSpinBox(int val);
void slotAdjustMaxOutputSpinBox(int val);
void slotSpotColorChanged(const Digikam::DColor &color);
void slotColorSelectedFromTarget(const Digikam::DColor &color);
void slotPickerColorButtonActived();
void slotShowHistogramGuide(int v);
private:
enum HistogramScale
{
Linear=0,
Logarithmic
};
enum ColorChannel
{
LuminosityChannel=0,
RedChannel,
GreenChannel,
BlueChannel,
AlphaChannel
};
enum ColorPicker
{
BlackTonal=0,
GrayTonal,
WhiteTonal
};
uchar *m_destinationPreviewData;
int m_histoSegments;
int m_currentPreviewMode;
TQComboBox *m_channelCB;
TQSpinBox *m_minInput;
TQSpinBox *m_maxInput;
TQSpinBox *m_minOutput;
TQSpinBox *m_maxOutput;
TQPushButton *m_autoButton;
TQPushButton *m_resetButton;
TQPushButton *m_pickBlack;
TQPushButton *m_pickGray;
TQPushButton *m_pickWhite;
TQHButtonGroup *m_pickerColorButtonGroup;
TQHButtonGroup *m_scaleBG;
KDoubleNumInput *m_gammaInput;
KGradientSelector *m_hGradientMinInput;
KGradientSelector *m_hGradientMaxInput;
KGradientSelector *m_hGradientMinOutput;
KGradientSelector *m_hGradientMaxOutput;
Digikam::HistogramWidget *m_levelsHistogramWidget;
Digikam::HistogramWidget *m_histogramWidget;
Digikam::ImageWidget *m_previewWidget;
Digikam::ImageLevels *m_levels;
Digikam::DImg m_originalImage;
};
} // NameSpace DigikamAdjustLevelsImagesPlugin
#endif /* ADJUSTLEVELS_H */
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