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diff --git a/kgamma/kcmkgamma/gammactrl.h b/kgamma/kcmkgamma/gammactrl.h
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+++ b/kgamma/kcmkgamma/gammactrl.h
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+/***************************************************************************
+                          gammactrl.h  -  description
+                             -------------------
+    begin                : Sun Oct 7 2001
+    copyright            : (C) 2001 by Michael v.Ostheim
+    email                : MvOstheim@web.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+/**A horizontal slider and a text field for the gamma value.
+  *@author Michael v.Ostheim
+  */
+
+#ifndef GAMMACTRL_H
+#define GAMMACTRL_H
+
+#include <qhbox.h>
+#include <qslider.h>
+
+class QString;
+class DisplayNumber;
+class XVidExtWrap;
+
+class GammaCtrl : public QHBox  {
+
+  Q_OBJECT
+  public:
+    /** construktor */
+    GammaCtrl(QWidget *parent=0, XVidExtWrap *xvid=0, int channel=0, \
+      const QString& mingamma="0.40", const QString& maxgamma="3.50", \
+      const QString& setgamma="1.00", const char *name=0 );
+    /** destruktor */
+    ~GammaCtrl();
+    /** Return the current gamma value with precision prec */
+    QString gamma(int);
+    /** Set gamma, slider and textfield */
+    void setGamma(const QString&);
+    /** Set slider and textfield */
+    void setControl(const QString&);
+    /** Disable the slider */
+    void disableSlider() { slider->setDisabled(true);};
+
+  private:
+    QString mgamma;
+    QSlider *slider;
+    DisplayNumber *textfield;
+    bool suspended, changed;
+    int gchannel, oldpos;
+    double ming;
+    XVidExtWrap *xv;
+
+  public slots:
+    /** Disable textfield */
+    void suspend();
+
+  protected slots:
+    /** Set slider and textfield */
+    void setCtrl(int);
+    /** Set gamma and textfield */
+    void setGamma(int);
+    /** Change status of GammaCtrl when pressed */
+    void pressed();
+
+  signals:
+    /** Gamma change signal */
+    void gammaChanged(int);
+};
+
+#endif