-
-
Save dagee/84fca479935b00fd45eff1ba7bec119a to your computer and use it in GitHub Desktop.
A class to manage printing on Avery labels with ReportLab
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import os | |
| from collections.abc import Iterator | |
| from reportlab.pdfgen import canvas | |
| from reportlab.lib.pagesizes import A4, landscape | |
| from reportlab.lib.units import inch, mm, cm | |
| from reportlab.pdfbase import pdfmetrics | |
| from reportlab.pdfbase.ttfonts import TTFont | |
| # Usage: | |
| # label = AveryLabels.AveryLabel(5160) | |
| # label.open( "labels5160.pdf" ) | |
| # label.render( RenderAddress, 30 ) | |
| # label.close() | |
| # | |
| # 'render' can either pass a callable, which receives the canvas object | |
| # (with X,Y=0,0 at the lower right) or a string "form" name of a form | |
| # previously created with canv.beginForm(). | |
| ## labelInfo - Description | |
| # avery: (horizonCount, vertCount (hLabel,wLabel), (hsp, vsp), (xst, yst) ), | |
| # avery = Avery Label - article number | |
| # hCount = number of lables horizontally | |
| # vCount = number of lables vertically | |
| # hLabel = label height | |
| # wLabel = label width | |
| # hsp = horizontal space between labels | |
| # vsp = vertical space between labels | |
| # xst = x start on page | |
| # yst = y start on page | |
| labelInfo = { | |
| # 25,4x10 mm ASN label @ A4 L4731REV | |
| 4731: (7, 27, (25.4*mm, 10.0*mm), (2.5*mm, 0.0*mm), (8.5*mm, 13.5*mm) ), | |
| # 2.6 x 1 address labels | |
| 5160: ( 3, 10, (187, 72), (11, 0), (14, 36)), | |
| 5161: ( 2, 10, (288, 72), (0, 0), (18, 36)), | |
| # 4 x 2 address labels | |
| 5163: ( 2, 5, (288, 144), (0, 0), (18, 36)), | |
| # 1.75 x 0.5 return address labels | |
| 5167: ( 4, 20, (126, 36), (0, 0), (54, 36)), | |
| # 3.5 x 2 business cards | |
| 5371: ( 2, 5, (252, 144), (0, 0), (54, 36)) | |
| } | |
| RETURN_ADDRESS = 5167 | |
| BUSINESS_CARDS = 5371 | |
| class AveryLabel: | |
| def __init__(self, label, **kwargs): | |
| data = labelInfo[label] | |
| self.across = data[0] | |
| self.down = data[1] | |
| self.size = data[2] | |
| self.labelsep = self.size[0]+data[3][0], self.size[1]+data[3][1] | |
| self.margins = data[4] | |
| self.topDown = True | |
| self.debug = False | |
| self.pagesize = A4 | |
| self.position = 0 | |
| self.__dict__.update(kwargs) | |
| def open(self, filename): | |
| self.canvas = canvas.Canvas( filename, pagesize=self.pagesize ) | |
| if self.debug: | |
| self.canvas.setPageCompression( 0 ) | |
| self.canvas.setLineJoin(1) | |
| self.canvas.setLineCap(1) | |
| def topLeft(self, x=None, y=None): | |
| if x == None: | |
| x = self.position | |
| if y == None: | |
| if self.topDown: | |
| x,y = divmod(x, self.down) | |
| else: | |
| y,x = divmod(x, self.across) | |
| return ( | |
| self.margins[0]+x*self.labelsep[0], | |
| self.pagesize[1] - self.margins[1] - (y+1)*self.labelsep[1] | |
| ) | |
| def advance(self): | |
| self.position += 1 | |
| if self.position == self.across * self.down: | |
| self.canvas.showPage() | |
| self.position = 0 | |
| def close(self): | |
| if self.position: | |
| self.canvas.showPage() | |
| self.canvas.save() | |
| self.canvas = None | |
| # To render, you can either create a template and tell me | |
| # "go draw N of these templates" or provide a callback. | |
| # Callback receives canvas, width, height. | |
| # | |
| # Or, pass a callable and an iterator. We'll do one label | |
| # per iteration of the iterator. | |
| def render( self, thing, count, *args ): | |
| assert callable(thing) or isinstance(thing, str) | |
| if isinstance(count, Iterator): | |
| return self.render_iterator( thing, count ) | |
| canv = self.canvas | |
| for i in range(count): | |
| canv.saveState() | |
| canv.translate( *self.topLeft() ) | |
| if self.debug: | |
| canv.setLineWidth( 0.25 ) | |
| canv.rect( 0, 0, self.size[0], self.size[1] ) | |
| if callable(thing): | |
| thing( canv, self.size[0], self.size[1], *args ) | |
| elif isinstance(thing, str): | |
| canv.doForm(thing) | |
| canv.restoreState() | |
| self.advance() | |
| def render_iterator( self, func, iterator ): | |
| canv = self.canvas | |
| for chunk in iterator: | |
| canv.saveState() | |
| canv.translate( *self.topLeft() ) | |
| if self.debug: | |
| canv.setLineWidth( 0.25 ) | |
| canv.rect( 0, 0, self.size[0], self.size[1] ) | |
| func( canv, self.size[0], self.size[1], chunk ) | |
| canv.restoreState() | |
| self.advance() |
Author
4731: (7, 27, (25.4*mm, 13.5*mm), (2.5*mm, 0*mm), (8.5*mm, 13.5*mm) ),Shouldn't this be
4731: (7, 27, (25.4*mm, 10*mm), (2.5*mm, 0), (8.5*mm, 13.5*mm) )I was getting only 21 codes on each page and found this as the culprit.
Jupp! I found this too and changed it localy - now the late update here,
even with changes to mm and the description for every part of the labelInfo.
Actually, I guess that there have been several versions of 4731 dimensions
Mine is sold in Germany with A4 paper.
hopefully it fits better now.
thanx for the info
Mine is from Germany as well :-)
In the meantime, people have turned this into a CLI tool available through pip, and further evolved it. There is also a discussion to add support for this in paperless.
https://git.jcg.re/jcgruenhage/paperless-asn-qr-codes
https://pypi.org/project/paperless-asn-qr-codes/
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4731: (7, 27, (25.4*mm, 13.5*mm), (2.5*mm, 0*mm), (8.5*mm, 13.5*mm) ),Shouldn't this be
4731: (7, 27, (25.4*mm, 10*mm), (2.5*mm, 0), (8.5*mm, 13.5*mm) )I was getting only 21 codes on each page and found this as the culprit.