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diff --git a/src/imageplugins/coreplugin/imageeffect_rgb.h b/src/imageplugins/coreplugin/imageeffect_rgb.h
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+++ b/src/imageplugins/coreplugin/imageeffect_rgb.h
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2004-07-11
+ * Description : digiKam image editor Color Balance tool.
+ *
+ * Copyright (C) 2004-2007 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 IMAGEEFFECT_RGB_H
+#define IMAGEEFFECT_RGB_H
+
+// Digikam include.
+
+#include "imagedlgbase.h"
+
+class TQComboBox;
+class TQHButtonGroup;
+
+class TQSpinBox;
+class TQSlider;
+
+namespace Digikam
+{
+class HistogramWidget;
+class ColorGradientWidget;
+class ImageWidget;
+class DColor;
+}
+
+namespace DigikamImagesPluginCore
+{
+
+class ImageEffect_RGB : public Digikam::ImageDlgBase
+{
+    TQ_OBJECT
+  
+
+public:
+
+    ImageEffect_RGB(TQWidget *parent);
+    ~ImageEffect_RGB();
+
+private:
+    
+    void writeUserSettings();
+    void readUserSettings();
+    void resetValues();
+    void adjustSliders(int r, int g, int b);
+    void finalRendering();
+    
+private slots:
+
+    void slotEffect();
+    void slotChannelChanged(int channel);
+    void slotScaleChanged(int scale);
+    void slotColorSelectedFromTarget( const Digikam::DColor &color );
+
+private:
+
+    enum HistogramScale
+    {
+        Linear=0,
+        Logarithmic
+    };
+
+    enum ColorChannel
+    {
+        LuminosityChannel=0,
+        RedChannel,
+        GreenChannel,
+        BlueChannel
+    };
+
+    uchar                        *m_destinationPreviewData;
+
+    TQComboBox                    *m_channelCB;    
+    
+    TQHButtonGroup                *m_scaleBG;  
+
+    TQSpinBox                     *m_rInput;
+    TQSpinBox                     *m_gInput;
+    TQSpinBox                     *m_bInput;
+    
+    TQSlider                      *m_rSlider;
+    TQSlider                      *m_gSlider;
+    TQSlider                      *m_bSlider;
+    
+    Digikam::ImageWidget         *m_previewWidget;
+
+    Digikam::ColorGradientWidget *m_hGradient;
+    
+    Digikam::HistogramWidget     *m_histogramWidget;
+    
+};
+
+}  // NameSpace DigikamImagesPluginCore
+
+#endif /* IMAGEEFFECT_RGB_H */