Coding styles

[perso/Immae/Projets/Python/MusicSampler.git] / helpers / __init__.py

diff --git a/helpers/__init__.py b/helpers/__init__.py
index ce8f04bf026a55840f2a4b095f9954484c9ef6ea..9d6663893bc32634b1163f7a525b8b04a7bdf9a5 100644 (file)
--- a/helpers/__init__.py
+++ b/helpers/__init__.py
@@ -4,6 +4,7 @@ import sys
 import os
 import math
 import sounddevice as sd
+import logging
 
 class Config:
     pass
@@ -16,12 +17,12 @@ def path():
         return path + "/../"
 
 def parse_args():
-    argv = sys.argv[1:]
-    sys.argv = sys.argv[:1]
+    argv = sys.argv[1 :]
+    sys.argv = sys.argv[: 1]
     if "--" in argv:
         index = argv.index("--")
-        kivy_args = argv[index+1:]
-        argv = argv[:index]
+        kivy_args = argv[index+1 :]
+        argv = argv[: index]
 
         sys.argv.extend(kivy_args)
 
@@ -32,9 +33,14 @@ def parse_args():
             default="config.yml",
             required=False,
             help="Config file to load")
+    parser.add_argument("-d", "--debug",
+            nargs=0,
+            action=DebugModeAction,
+            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,
@@ -43,7 +49,8 @@ def parse_args():
             default=0,
             type=int,
             required=False,
-            help="Blocksize: If not 0, the numbe 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,
@@ -61,7 +68,8 @@ def parse_args():
             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,
@@ -74,10 +82,16 @@ def parse_args():
             )
     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.")
+
+    from kivy.logger import Logger
+    Logger.setLevel(logging.ERROR)
+
     args = parser.parse_args(argv)
 
     Config.yml_file = args.config
+
     Config.latency = args.latency
     Config.blocksize = args.blocksize
     Config.frame_rate = args.frame_rate
@@ -85,6 +99,11 @@ def parse_args():
     Config.sample_width = args.sample_width
     Config.builtin_mixing = args.builtin_mixing
 
+class DebugModeAction(argparse.Action):
+    def __call__(self, parser, namespace, values, option_string=None):
+        from kivy.logger import Logger
+        Logger.setLevel(logging.DEBUG)
+
 class SelectDeviceAction(argparse.Action):
     def __call__(self, parser, namespace, values, option_string=None):
         sd.default.device = values
@@ -110,9 +129,18 @@ def duration_to_min_sec(duration):
     else:
         return "{}:{:0>2}".format(minutes, seconds)
 
-def gain(volume, old_volume = None):
+def gain(volume, old_volume=None):
     if old_volume is None:
         return 20 * math.log10(volume / 100)
     else:
-        return [20 * math.log10(max(volume, 0.1) / max(old_volume, 0.1)), max(volume, 0)]
+        return [
+                20 * math.log10(max(volume, 0.1) / max(old_volume, 0.1)),
+                max(volume, 0)]
+
+def debug_print(message):
+    from kivy.logger import Logger
+    Logger.debug('MusicSampler: ' + message)
 
+def error_print(message):
+    from kivy.logger import Logger
+    Logger.error('MusicSampler: ' + message)