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level_meter.h

/*
    Copyright (C) 2002 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.

*/

#ifndef __ardour_gtk_track_meter_h__
#define __ardour_gtk_track_meter_h__

#include <vector>
#include <map>

#include <gtkmm/box.h>
#include <gtkmm/adjustment.h>
#include <gtkmm/frame.h>
#include <gtkmm/eventbox.h>
#include <gtkmm/button.h>
#include <gtkmm/table.h>
#include <gtkmm/drawingarea.h>

#include <ardour/types.h>

#include <gtkmm2ext/click_box.h>
#include <gtkmm2ext/focus_entry.h>
#include <gtkmm2ext/slider_controller.h>

#include "enums.h"

namespace ARDOUR {
      class IO;
      class Session;
      class Route;
      class RouteGroup;
}
namespace Gtkmm2ext {
      class FastMeter;
      class BarController;
}
namespace Gtk {
      class Menu;
}

class LevelMeter : public Gtk::HBox
{
  public:
      LevelMeter (ARDOUR::Session&);
      ~LevelMeter ();

      virtual void set_io (boost::shared_ptr<ARDOUR::IO> io);

      void update_gain_sensitive ();

      float update_meters ();
      void update_meters_falloff ();
      void clear_meters ();
      void hide_meters ();
      void setup_meters (int len=0, int width=3);

  private:

      //friend class MixerStrip;
      boost::shared_ptr<ARDOUR::IO> _io;
      ARDOUR::Session& _session;

      Width _width;

      struct MeterInfo {
          Gtkmm2ext::FastMeter *meter;
          gint16          width;
            int                     length;   
          bool            packed;
          
          MeterInfo() { 
                meter = 0;
                width = 0;
                  length = 0;
                packed = false;
          }
      };

      guint16 regular_meter_width;
      static const guint16 thin_meter_width = 2;
      vector<MeterInfo>    meters;
      float       max_peak;
      
      void hide_all_meters ();
      gint meter_button_release (GdkEventButton*, uint32_t);

      void parameter_changed (const char*);

      void on_theme_changed ();
      bool style_changed;
      bool color_changed;
      void color_handler ();
};

#endif /* __ardour_gtk_track_meter_h__ */


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