Update docstrings

src/escpos/escpos.py

@@ -437,7 +437,57 @@ class Escpos(object):
         Automatic hardware|software barcode renderer according to the printer capabilities.
 
         Defaults to hardware barcode and its format types if supported.
-        Set force_software=True to force the software renderer.
+        Automatically switches to software barcode renderer if hardware does not
+        support a barcode type that is supported by software. (e.g. JAN, ISSN, etc.).
+
+        Set force_software=True to force the software renderer according to the profile.
+        Set force_software=graphics|bitImageColumn|bitImageRaster to specify a renderer.
+
+        Ignores caps, special chars and whitespaces in barcode type names.
+        So "EAN13", "ean-13", "Ean_13", "EAN 13" are all accepted.
+
+        :param code: alphanumeric data to be printed as bar code (payload).
+
+        :param bc: barcode format type (EAN13, CODE128, JAN, etc.).
+
+        :param height: barcode module height (in printer dots), has to be between 1 and 255.
+            *default*: 64
+        :type height: int
+
+        :param width: barcode module width (in printer dots), has to be between 2 and 6.
+            *default*: 3
+        :type width: int
+
+        :param pos: text position (ABOVE, BELOW, BOTH, OFF) relative to the barcode
+        (ignored in software renderer).
+            *default*: BELOW
+
+        :param font: select font A or B (ignored in software renderer).
+            *default*: A
+
+        :param align_ct: If *True*, center the barcode.
+            *default*: A
+        :type align_ct: bool
+
+        :param function_type: ESCPOS function type A or B. None to guess it from profile
+        (ignored in software renderer).
+            *default*: None
+
+        :param check: If *True*, checks that the code meets the requirements of the barcode type.
+            *default*: True
+        :type check: bool
+
+        :param force_software: If *True*, force the use of software barcode renderer from profile.
+        If *"graphics", "bitImageColumn" or "bitImageRaster"*, force the use of specific renderer.
+        :type force_software: bool | str
+
+        :raises: :py:exc:`~escpos.exceptions.BarcodeCodeError`,
+                 :py:exc:`~escpos.exceptions.BarcodeTypeError`
+
+        .. tip::
+            Get all supported formats at:
+            - Hardware: `~escpos.constants.BARCODE_FORMATS`
+            - Software: `https://python-barcode.readthedocs.io/en/stable/supported-formats.html`
         """
         hw_modes = ["barcodeA", "barcodeB"]
         sw_modes = ["graphics", "bitImageColumn", "bitImageRaster"]
@@ -522,9 +572,6 @@ class Escpos(object):
         automatic centering. Please note that when you use center alignment, then the alignment of text will be changed
         automatically to centered. You have to manually restore the alignment if necessary.
 
-        .. todo:: If further barcode-types are needed they could be rendered transparently as an image. (This could also
-                  be of help if the printer does not support types that others do.)
-
         :param code: alphanumeric data to be printed as bar code
         :param bc: barcode format, possible values are for type A are:
 
@@ -662,6 +709,60 @@ class Escpos(object):
         font_size=10,
         center=True,
     ):
+        """Print Barcode
+
+        This method allows to print barcodes. The rendering of the barcode is done by
+        the `barcode` library and sent to the printer as image through one of the
+        printer's supported implementations: graphics, bitImageColumn or bitImageRaster.
+
+        :param barcode_type: barcode format, possible values are:
+            * ean8
+            * ean8-guard
+            * ean13
+            * ean13-guard
+            * ean
+            * gtin
+            * ean14
+            * jan
+            * upc
+            * upca
+            * isbn
+            * isbn13
+            * gs1
+            * isbn10
+            * issn
+            * code39
+            * pzn
+            * code128
+            * itf
+            * gs1_128
+            * codabar
+            * nw-7
+        :type data: str
+
+        :param data: alphanumeric data to be printed as bar code (payload).
+        :type data: str
+
+        :param impl: image printing mode:
+            * graphics
+            * bitImageColumn
+            * bitImageRaster
+
+        :param module_height: barcode module height (in mm).
+        :type module_height: int | float
+
+        :param module_width: barcode module width (in mm).
+        :type module_width: int | float
+
+        :param text_distance: distance from the barcode to the code text (in dots).
+        :type text_distance: int
+
+        :param font_size: font size of the code text (in dots).
+        :type font_size: int
+
+        :param center: center the barcode.
+        :type center: bool
+        """
         image_writer = ImageWriter()
 
         # Check if barcode type exists