Make music_sampler multilingual1.2.0

1 files changed, 31 insertions, 20 deletions

diff --git a/music_sampler/helpers.py b/music_sampler/helpers.py
index 2249746..2199058 100644
--- a/music_sampler/helpers.py
+++ b/music_sampler/helpers.py
@@ -5,6 +5,8 @@ import os
 import math
 import sounddevice as sd
 import logging
+import gettext
+gettext.install('music_sampler')
 Logger = logging.getLogger("kivy")
 
 from . import sysfont
@@ -66,71 +68,76 @@ def parse_args():
     sys.argv.extend(["-c", "kivy:log_name:/tmp/music_sampler_%_.txt"])
 
     parser = argparse.ArgumentParser(
-            description="A Music Sampler application.",
+            description=_("A Music Sampler application."),
             formatter_class=argparse.ArgumentDefaultsHelpFormatter)
     parser.add_argument("-c", "--config",
             default="config.yml",
             required=False,
-            help="Config file to load")
+            help=_("Config file to load"))
     parser.add_argument("-p", "--music-path",
             default=".",
             required=False,
-            help="Folder in which to find the music files")
+            help=_("Folder in which to find the music files"))
     parser.add_argument("-d", "--debug",
             nargs=0,
             action=DebugModeAction,
-            help="Print messages in console")
+            help=_("Print messages in console"))
     parser.add_argument("-m", "--builtin-mixing",
             action="store_true",
-            help="Make the mixing of sounds manually\
-                    (do it if the system cannot handle it correctly)")
+            help=_("Make the mixing of sounds manually\
+                    (do it if the system cannot handle it correctly)"))
     parser.add_argument("-l", "--latency",
             default="high",
             required=False,
-            help="Latency: low, high or number of seconds")
+            help=_("Latency: low, high or number of seconds"))
     parser.add_argument("-b", "--blocksize",
             default=0,
             type=int,
             required=False,
-            help="Blocksize: If not 0, the number of frames to take\
-                    at each step for the mixer")
+            help=_("Blocksize: If not 0, the number of frames to take\
+                    at each step for the mixer"))
     parser.add_argument("-f", "--frame-rate",
             default=44100,
             type=int,
             required=False,
-            help="Frame rate to play the musics")
+            help=_("Frame rate to play the musics"))
     parser.add_argument("-x", "--channels",
             default=2,
             type=int,
             required=False,
-            help="Number of channels to use")
+            help=_("Number of channels to use"))
     parser.add_argument("-s", "--sample-width",
             default=2,
             type=int,
             required=False,
-            help="Sample width (number of bytes for each frame)")
+            help=_("Sample width (number of bytes for each frame)"))
     parser.add_argument("-V", "--version",
             action="version",
-            help="Displays the current version and exits. Only use\
-                    in bundled package",
+            help=_("Displays the current version and exits. Only use\
+                    in bundled package"),
             version=show_version())
     parser.add_argument("--device",
             action=SelectDeviceAction,
-            help="Select this sound device"
+            help=_("Select this sound device")
             )
     parser.add_argument("--list-devices",
             nargs=0,
             action=ListDevicesAction,
-            help="List available sound devices"
+            help=_("List available sound devices")
             )
     parser.add_argument("--no-focus-warning",
             action='store_true',
-            help="Don't show warning when focus is lost"
+            help=_("Don't show warning when focus is lost")
+            )
+    parser.add_argument("-L", "--language",
+            required=False,
+            default="fr",
+            help=_("Select another language")
             )
     parser.add_argument('--',
             dest="args",
-            help="Kivy arguments. All arguments after this are interpreted\
-                    by Kivy. Pass \"-- --help\" to get Kivy's usage.")
+            help=_("Kivy arguments. All arguments after this are interpreted\
+                    by Kivy. Pass \"-- --help\" to get Kivy's usage."))
 
     args = parser.parse_args(argv)
 
@@ -143,6 +150,10 @@ def parse_args():
     Config.sample_width = args.sample_width
     Config.builtin_mixing = args.builtin_mixing
     Config.no_focus_warning = args.no_focus_warning
+    if args.language != 'en':
+        gettext.translation("music_sampler",
+                localedir=path() + '/locales',
+                languages=[args.language]).install()
     if args.music_path.endswith("/"):
         Config.music_path = args.music_path
     else:
@@ -167,7 +178,7 @@ def show_version():
         with open(path() + ".pyinstaller_commit", "r") as f:
             return f.read()
     else:
-        return "option '-v' can only be used in bundled package"
+        return _("option '-V' can only be used in bundled package")
 
 def duration_to_min_sec(duration):
     minutes = int(duration / 60)