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
  25 #include <gtkmm/box.h>
  26 #include <gtkmm/adjustment.h>
  27 #include <gtkmm/frame.h>
  28 #include <gtkmm/eventbox.h>
  29 #include <gtkmm/button.h>
  30 #include <gtkmm/table.h>
  31 #include <gtkmm/drawingarea.h>
  32
  33 #include "ardour/types.h"
  34 #include "ardour/chan_count.h"
  35 #include "ardour/session_handle.h"
  36
  37 #include <gtkmm2ext/click_box.h>
  38 #include <gtkmm2ext/focus_entry.h>
  39 #include <gtkmm2ext/slider_controller.h>
  40
  41 #include "enums.h"
  42
  43 namespace ARDOUR {
  44         class Session;
  45         class PeakMeter;
  46 }
  47 namespace Gtkmm2ext {
  48         class FastMeter;
  49 }
  50 namespace Gtk {
  51         class Menu;
  52 }
  53
  54 class LevelMeter : public Gtk::HBox, public ARDOUR::SessionHandlePtr
  55 {
  56   public:
  57         LevelMeter (ARDOUR::Session*);
  58         ~LevelMeter ();
  59
  60         virtual void set_meter (ARDOUR::PeakMeter* meter);
  61
  62         void update_gain_sensitive ();
  63
  64         float update_meters ();
  65         void update_meters_falloff ();
  66         void clear_meters ();
  67         void hide_meters ();
  68         void setup_meters (int len=0, int width=3);
  69
  70   private:
  71         ARDOUR::PeakMeter* _meter;
  72
  73         Width _width;
  74
  75         struct MeterInfo {
  76             Gtkmm2ext::FastMeter *meter;
  77             gint16                width;
  78             int                   length;
  79             bool                  packed;
  80
  81             MeterInfo() {
  82                     meter = 0;
  83                     width = 0;
  84                     length = 0;
  85                     packed = false;
  86             }
  87         };
  88
  89         guint16                regular_meter_width;
  90         int                    meter_length;
  91         static const guint16   thin_meter_width = 2;
  92         std::vector<MeterInfo> meters;
  93         float                  max_peak;
  94
  95         PBD::ScopedConnection _configuration_connection;
  96         PBD::ScopedConnection _parameter_connection;
  97
  98         void hide_all_meters ();
  99         gint meter_button_release (GdkEventButton*, uint32_t);
 100
 101         void parameter_changed (std::string);
 102         void configuration_changed (ARDOUR::ChanCount in, ARDOUR::ChanCount out);
 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