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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date : 2004-12-01
+ * Description : image histogram adjust curves.
+ *
+ * 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 ADJUSTCURVESTOOL_H
+#define ADJUSTCURVESTOOL_H
+
+// Digikam includes.
+
+#include "editortool.h"
+
+// Local includes.
+
+class TQComboBox;
+class TQPushButton;
+class TQHButtonGroup;
+
+namespace Digikam
+{
+class CurvesWidget;
+class HistogramWidget;
+class ColorGradientWidget;
+class EditorToolSettings;
+class ImageWidget;
+class DImg;
+class DColor;
+}
+
+namespace DigikamAdjustCurvesImagesPlugin
+{
+
+class AdjustCurvesTool : public Digikam::EditorTool
+{
+ TQ_OBJECT
+
+
+public:
+
+ AdjustCurvesTool(TQObject *parent);
+ ~AdjustCurvesTool();
+
+private:
+
+ void readSettings();
+ void writeSettings();
+ void finalRendering();
+
+private slots:
+
+ void slotSaveAsSettings();
+ void slotLoadSettings();
+ void slotEffect();
+ void slotResetSettings();
+ void slotResetCurrentChannel();
+ void slotChannelChanged(int channel);
+ void slotScaleChanged(int scale);
+ void slotCurveTypeChanged(int type);
+ void slotSpotColorChanged(const Digikam::DColor& color);
+ void slotColorSelectedFromTarget(const Digikam::DColor& color);
+ void slotPickerColorButtonActived();
+
+private:
+
+ enum ColorPicker
+ {
+ BlackTonal=0,
+ GrayTonal,
+ WhiteTonal
+ };
+
+ enum ColorChannel
+ {
+ LuminosityChannel=0,
+ RedChannel,
+ GreenChannel,
+ BlueChannel,
+ AlphaChannel
+ };
+
+ enum CurvesDrawingType
+ {
+ SmoothDrawing=0,
+ FreeDrawing
+ };
+
+ enum HistogramScale
+ {
+ Linear=0,
+ Logarithmic
+ };
+
+ uchar *m_destinationPreviewData;
+
+ int m_histoSegments;
+ int m_currentPreviewMode;
+
+ TQComboBox *m_channelCB;
+
+ TQPushButton *m_resetButton;
+ TQPushButton *m_pickBlack;
+ TQPushButton *m_pickGray;
+ TQPushButton *m_pickWhite;
+ TQPushButton *m_curveFree;
+ TQPushButton *m_curveSmooth;
+
+ TQHButtonGroup *m_pickerColorButtonGroup;
+ TQHButtonGroup *m_scaleBG;
+ TQHButtonGroup *m_curveType;
+
+ Digikam::CurvesWidget *m_curvesWidget;
+
+ Digikam::HistogramWidget *m_histogramWidget;
+
+ Digikam::ColorGradientWidget *m_hGradient;
+ Digikam::ColorGradientWidget *m_vGradient;
+
+ Digikam::ImageWidget *m_previewWidget;
+
+ Digikam::EditorToolSettings *m_gboxSettings;
+
+ Digikam::DImg *m_originalImage;
+};
+
+} // NameSpace DigikamAdjustCurvesImagesPlugin
+
+#endif /* ADJUSTCURVESTOOL_H */