gtk2_ardour/midi_channel_selector.cc

   1 #include "midi_channel_selector.h"
   2 #include <sstream>
   3
   4 using namespace std;
   5
   6 MidiChannelSelector::MidiChannelSelector() :
   7         Gtk::Table(4,4,true)
   8 {
   9         property_column_spacing() = 0;
  10         property_row_spacing() = 0;
  11
  12         uint8_t channel_nr = 0;
  13         for(int row = 0; row < 4; ++row) {
  14                 for(int column = 0; column < 4; ++column) {
  15                         ostringstream channel;
  16                         channel << int(++channel_nr);
  17                         _button_labels[row][column].set_text(channel.str());
  18                         _button_labels[row][column].set_justify(Gtk::JUSTIFY_RIGHT);
  19                         _buttons[row][column].add(_button_labels[row][column]);
  20                         _buttons[row][column].signal_toggled().connect(
  21                                 sigc::bind(
  22                                         sigc::mem_fun(this, &MidiChannelSelector::button_toggled),
  23                                         &_buttons[row][column],
  24                                         channel_nr - 1));
  25                         attach(_buttons[row][column], column, column + 1, row, row + 1);
  26                 }
  27         }
  28 }
  29
  30 MidiChannelSelector::~MidiChannelSelector()
  31 {
  32 }
  33
  34 SingleMidiChannelSelector::SingleMidiChannelSelector(uint8_t active_channel)
  35         : MidiChannelSelector()
  36 {
  37         _active_button = 0;
  38         Gtk::ToggleButton *button = &_buttons[active_channel / 4][active_channel % 4];
  39         button->set_active(true);
  40         _active_button = button;
  41         _active_channel = active_channel;
  42 }
  43
  44 void
  45 SingleMidiChannelSelector::button_toggled(Gtk::ToggleButton *button, uint8_t channel)
  46 {
  47         if(button->get_active()) {
  48                 if(_active_button) {
  49                         _active_button->set_active(false);
  50                 }
  51                 _active_button = button;
  52                 _active_channel = channel;
  53                 channel_selected.emit(channel);
  54         }
  55 }
  56
  57 void
  58 MidiMultipleChannelSelector::button_toggled(Gtk::ToggleButton *button, uint8_t channel)
  59 {
  60         if(button->get_active()) {
  61                 _selected_channels.insert(channel);
  62         } else {
  63                 _selected_channels.erase(channel);
  64         }
  65 }