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controller.h

/*
    Copyright (C) 1998-99 Paul Davis 
    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.

    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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id: controller.h,v 1.2 2003/04/16 12:17:02 pbd Exp $
*/

#ifndef __gtkmmext_controller_h__
#define __gtkmmext_controller_h__

#include <gtk--.h>
#include <gtkmmext/popup.h>
#include <midi++/controllable.h>

namespace Gtkmmext {

class Controller : public MIDI::Controllable

{
  public:
      Controller (Gtk::Adjustment *, MIDI::Port *);
        virtual ~Controller () {}
      
      void set_value (float);
      float lower () { return adjustment->get_lower(); }
      float upper () { return adjustment->get_upper(); }
      float range () { return upper() - lower() /* XXX +1 ??? */ ; }

      void midicontrol_prompt ();
      void midicontrol_unprompt ();

  protected:
      Gtk::Adjustment *adjustment;

  private:
      Gtkmmext::PopUp prompter;
      gfloat new_value;
      bool new_value_pending;

      static gint update_controller_value (void *);
};

}; /* namespace */

#endif // __gtkmmext_controller_h__       



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