gtk2_ardour/level_meter.h

   1 /*
   2     Copyright (C) 2002 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __ardour_gtk_track_meter_h__
  21 #define __ardour_gtk_track_meter_h__
  22
  23 #include <vector>
  24 #include <map>
  25
  26 #include <gtkmm/box.h>
  27 #include <gtkmm/adjustment.h>
  28 #include <gtkmm/frame.h>
  29 #include <gtkmm/eventbox.h>
  30 #include <gtkmm/button.h>
  31 #include <gtkmm/table.h>
  32 #include <gtkmm/drawingarea.h>
  33
  34 #include <ardour/types.h>
  35
  36 #include <gtkmm2ext/click_box.h>
  37 #include <gtkmm2ext/focus_entry.h>
  38 #include <gtkmm2ext/slider_controller.h>
  39
  40 #include "enums.h"
  41
  42 namespace ARDOUR {
  43         class IO;
  44         class Session;
  45         class Route;
  46         class RouteGroup;
  47 }
  48 namespace Gtkmm2ext {
  49         class FastMeter;
  50         class BarController;
  51 }
  52 namespace Gtk {
  53         class Menu;
  54 }
  55
  56 class LevelMeter : public Gtk::HBox
  57 {
  58   public:
  59         LevelMeter (ARDOUR::Session&);
  60         ~LevelMeter ();
  61
  62         virtual void set_io (boost::shared_ptr<ARDOUR::IO> io);
  63
  64         void update_gain_sensitive ();
  65
  66         float update_meters ();
  67         void update_meters_falloff ();
  68         void clear_meters ();
  69         void hide_meters ();
  70         void setup_meters (int len=0, int width=3);
  71
  72   private:
  73
  74         //friend class MixerStrip;
  75         boost::shared_ptr<ARDOUR::IO> _io;
  76         ARDOUR::Session& _session;
  77
  78         Width _width;
  79
  80         struct MeterInfo {
  81             Gtkmm2ext::FastMeter *meter;
  82             gint16          width;
  83                 int                             length;
  84             bool            packed;
  85
  86             MeterInfo() {
  87                     meter = 0;
  88                     width = 0;
  89                         length = 0;
  90                     packed = false;
  91             }
  92         };
  93
  94         guint16 regular_meter_width;
  95         static const guint16 thin_meter_width = 2;
  96         vector<MeterInfo>    meters;
  97         float       max_peak;
  98
  99         void hide_all_meters ();
 100         gint meter_button_release (GdkEventButton*, uint32_t);
 101
 102         void parameter_changed (const char*);
 103
 104         void on_theme_changed ();
 105         bool style_changed;
 106         bool color_changed;
 107         void color_handler ();
 108 };
 109
 110 #endif /* __ardour_gtk_track_meter_h__ */
 111