Contents

# frozen_string_literal: true

require 'glimmer-dsl-libui'

class TinyMidiPlayer
  include Glimmer
  
  VERSION = '0.0.1'

  def initialize
    @pid = nil
    @music_directory = File.expand_path(ARGV[0] || '~/Music/')
    @midi_files      = Dir.glob(File.join(@music_directory, '**/*.mid'))
                          .sort_by { |path| File.basename(path) }
    at_exit { stop_midi }
    create_gui
  end

  def stop_midi
    if @pid
      if @th.alive?
        Process.kill(:SIGKILL, @pid)
        @pid = nil
      else
        @pid = nil
      end
    end
  end

  def play_midi
    stop_midi
    if @pid.nil? && @selected_file
      begin
        @pid = spawn "timidity #{@selected_file}"
        @th = Process.detach @pid
      rescue Errno::ENOENT
        warn 'Timidty++ not found. Please install Timidity++.'
        warn 'https://sourceforge.net/projects/timidity/'
      end
    end
  end

  def show_version(main_window)
    msg_box(main_window,
               'Tiny Midi Player',
               "Written in Ruby\n" \
               "https://github.com/kojix2/libui\n" \
               "Version #{VERSION}")
  end

  def create_gui
    menu('Help') { |m|
      menu_item('Version') {
        on_clicked do
          show_version(@main_window)
        end
      }
    }
    @main_window = window('Tiny Midi Player', 200, 50) {
      horizontal_box {
        vertical_box {
          stretchy false
          
          button('▶') {
            on_clicked do
              play_midi
            end
          }
          button('■') {
            on_clicked do
              stop_midi
            end
          }
        }

        combobox { |c|
          items @midi_files.map { |path| File.basename(path) }
          
          on_selected do
            @selected_file = @midi_files[c.selected]
            play_midi if @th&.alive?
          end
        }
      }
    }
    @main_window.show
  end
end

TinyMidiPlayer.new

Version data entries

27 entries across 27 versions & 1 rubygems

Version	Path
glimmer-dsl-libui-0.1.5	examples/midi_player.rb
glimmer-dsl-libui-0.1.4	examples/midi_player.rb
glimmer-dsl-libui-0.1.3	examples/midi_player.rb
glimmer-dsl-libui-0.1.2	examples/midi_player.rb
glimmer-dsl-libui-0.1.1	examples/midi_player.rb
glimmer-dsl-libui-0.1.0	examples/midi_player.rb
glimmer-dsl-libui-0.0.28	examples/midi_player.rb
glimmer-dsl-libui-0.0.27	examples/midi_player.rb
glimmer-dsl-libui-0.0.26	examples/midi_player.rb
glimmer-dsl-libui-0.0.25	examples/midi_player.rb
glimmer-dsl-libui-0.0.24	examples/midi_player.rb
glimmer-dsl-libui-0.0.23	examples/midi_player.rb
glimmer-dsl-libui-0.0.22	examples/midi_player.rb
glimmer-dsl-libui-0.0.21	examples/midi_player.rb
glimmer-dsl-libui-0.0.20	examples/midi_player.rb
glimmer-dsl-libui-0.0.19	examples/midi_player.rb
glimmer-dsl-libui-0.0.18	examples/midi_player.rb
glimmer-dsl-libui-0.0.17	examples/midi_player.rb
glimmer-dsl-libui-0.0.16	examples/midi_player.rb
glimmer-dsl-libui-0.0.15	examples/midi_player.rb