/*
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *
 *  RawTherapee 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 3 of the License, or
 *  (at your option) any later version.
 * 
 *  RawTherapee 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _SHCSELECTOR_
#define _SHCSELECTOR_

#include <gtkmm.h>

class SHCListener {
    public:
        virtual void shcChanged () {}
};

class SHCSelector : public Gtk::DrawingArea {  

  protected:

    Glib::RefPtr<Gdk::GC> gc_;
    Glib::RefPtr<Gdk::Pixmap> backBuffer;

    int movingPosition;
    double tmpX, tmpPos;

    double positions[3];
    double wslider;
    
    SHCListener* cl;

  public:
         
    SHCSelector();

    void setSHCListener (SHCListener* l) { cl = l;; }

    void setPositions (double spos, double cpos, double hpos);
    void getPositions (double& spos, double& cpos, double& hpos);
    void on_realize();
    bool on_expose_event(GdkEventExpose* event);
    bool on_button_press_event (GdkEventButton* event);
    bool on_button_release_event (GdkEventButton* event);
    bool on_motion_notify_event (GdkEventMotion* event);
    void styleChanged (const Glib::RefPtr<Gtk::Style>& style);
};

#endif