3 examples #652
3 examples #652
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Hi @agordon and welcome to python-escpos!!.
This examples are great, however I left some suggestions and fixes to the code.
I still have to take a second look to the receipt.py but please be patient as I could be a bit slow with the review process.
By the moment we can start discussing and checking this little changes.
Thanks in advance!
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You could move this resource file to the graphics folder i.e examples/graphics/receipt/creature5.gif to keep the resource images into a separated folder as in other example files
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Same as in my previous comment: Move the resource file into the graphics/receipt sub-folder
| # Justify-text on left AND right sides by padding spaces, | ||
| # code by: Georgina Skibinski https://stackoverflow.com/a/66087666 | ||
| def justify(txt: str, width: int) -> str: | ||
| prev_txt = txt | ||
| while (l := width - len(txt)) > 0: | ||
| txt = re.sub(r"(\s+)", r"\1 ", txt, count=l) | ||
| if txt == prev_txt: | ||
| break | ||
| return txt.rjust(width) |
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Sounds good, feel free to create a change request :-)
belono
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belono
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Second look.
I think I'm done.
| ## Itemized list header (bold with underline) | ||
| p.set_with_default(bold=True, underline=True) | ||
| p.textln(header_format.format(**header)) | ||
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| ## Itemized List | ||
| p.set_with_default() | ||
| for idx, item in enumerate(items): | ||
| txt = item_format.format(**item) | ||
| if idx == len(items) - 1: | ||
| # If this is the last item, add underline | ||
| # to visually "close" the list. | ||
| p.set_with_default(underline=True) | ||
| p.textln(txt) |
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We recently implemented the new software_columns method which simplifies formatting and printing lines of text as columns from a list of text items, so now users have an easy way to print something like "tables".
It would be great if this example file could include that functionality.
| # Font "b" on my TM-P80-clone printer can squeeze 64 characters per line | ||
| disclaimer_width = 64 | ||
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| recipt_barcode = "1234567890" |
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Not used.
Forgot to add the barcode to the receipt?
It would be great to see a barcode or a QR printed on the receipt to showcase the capabilities of python-escpos.
| txt = re.sub(" +", " ", txt) | ||
| # textwrap.wrap() ensures words are not broken (unlike "escpos.block_text()"). | ||
| txt = textwrap.wrap(txt, width=disclaimer_width) | ||
| # Justify each line | ||
| txt = [justify(x, disclaimer_width) for x in txt] | ||
| p.set_with_default(font="b") | ||
| for l in txt: | ||
| p.textln(l) |
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| txt = re.sub(" +", " ", txt) | |
| # textwrap.wrap() ensures words are not broken (unlike "escpos.block_text()"). | |
| txt = textwrap.wrap(txt, width=disclaimer_width) | |
| # Justify each line | |
| txt = [justify(x, disclaimer_width) for x in txt] | |
| p.set_with_default(font="b") | |
| for l in txt: | |
| p.textln(l) | |
| p.software_columns(text_list=[txt], widths=disclaimer_width, align='left') |
Again, the software_columns method is your friend here.
This will print the text in disclaimer as a single column of left aligned text wrapped to fit within 64 characters max width per line.
The only lack would be the justification of the text that I would like to see be part of the python-escpos tools in the near future.
Change import sorting Co-authored-by: Benito López <belono@users.noreply.github.com>
Co-authored-by: Benito López <belono@users.noreply.github.com>
Co-authored-by: Benito López <belono@users.noreply.github.com>
3 participants
Description
Three usage examples with pictures of printed results - hopefully will help users get started quicker with python-escpos
Tested with
TM-P80 clone, called "MUNBYN 80mm USB Receipt Printer" , kernel device info: