Add Boxes.translations

to allow geenrators to translate things like labels, too.

Adds hidden language parameter to make sure the language selected gets
passed down to the generated drawing.

boxes/__init__.py

@@ -30,6 +30,7 @@ from xml.sax.saxutils import quoteattr
 
 from shapely.geometry import *
 from shapely.ops import split
+import gettext
 
 from boxes import edges
 from boxes import formats
@@ -297,6 +298,7 @@ class Boxes:
         self.edgesettings: dict[Any, Any] = {}
         self.inkscapefile = None
         self.non_default_args: dict[Any, Any] = {}
+        self.translations = gettext.NullTranslations()
 
         self.metadata = {
             "name" : self.__class__.__name__,

scripts/boxes

@@ -17,6 +17,7 @@ Options:
 
 import os
 import sys
+import gettext
 
 try:
     import boxes
@@ -58,13 +59,19 @@ def list_grouped_generators():
         for box in group.generators:
             print(' *  {}  -  {}'.format(box.__name__, box.__doc__ or ''))
 
-
+def get_translation():
+    try:
+        return gettext.translation('boxes.py', localedir='locale')
+    except OSError:
+        return gettext.translation('boxes.py', fallback=True)
+            
 def run_generator(name, args):
     generators = generators_by_name()
     lower_name = name.lower()
 
     if lower_name in generators.keys():
         box = generators[lower_name]()
+        box.translations = get_translation()
         box.parseArgs(args)
         box.open()
         box.render()

scripts/boxesserver

@@ -260,6 +260,8 @@ class BServer:
             groupid += 1
 
         result.append(f"""
+<input type="hidden" name="language" id="language" value="{lang_name}">
+
 <p>
  <button name="render" value="1" formtarget="_blank">{_("Generate")}</button>
  <button name="render" value="2" formtarget="_self">{_("Download")}</button>
@@ -598,6 +600,8 @@ class BServer:
         else:
             box = box_cls()
 
+        box.translations = lang
+
         if render == "0":
             defaults = {}
             for a in args: