Add improved dynamic text scaling function.

yagicard/__init__.py

@@ -80,8 +80,18 @@ def draw_image (image, draw, field):
 
     image.paste(source_image, (field.get("x"), field.get("y")))
 
+def rescale_text_for_sizes (*args):
+    def scaler (value):
+        for arg in args:
+            if isinstance(arg, int):
+                arg = [0, arg]
+
+            if len(value) >= arg[0]:
+                return arg[1]
+    return scaler
+
 def rescale_text_for_size (threshold, minimum, maximum):
-    return lambda value: maximum if len(value) < threshold else minimum
+    return rescale_text_for_sizes([threshold, minimum], [0, maximum])
 
 def merge_dicts (dicts):
     fusion = {}