mirror of
https://github.com/aborelis/ASN-Label-Generator.git
synced 2026-03-14 16:43:27 +00:00
138 lines
4.5 KiB
Python
138 lines
4.5 KiB
Python
from collections.abc import Iterator
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from reportlab.pdfgen import canvas
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from reportlab.lib.pagesizes import A4
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from reportlab.lib.units import mm, cm
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# Usage:
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# label = AveryLabels.AveryLabel(5160)
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# label.open( "labels5160.pdf" )
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# label.render( RenderAddress, 30 )
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# label.close()
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#
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# 'render' can either pass a callable, which receives the canvas object
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# (with X,Y=0,0 at the lower right) or a string "form" name of a form
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# previously created with canv.beginForm().
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# labels across
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# labels down
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# label size w/h
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# label gutter across/down
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# page margins left/top
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# page size w/h or name from reportlab.lib.pagesizes
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labelInfo = {
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5027: (5, 13, (38.1 * mm, 21.2 * mm), (0, 0), (10.95 * mm, 10.9 * mm), A4),
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# 22x 32mm x 10mm mini labels
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3044: (2, 11, (32, 10), (2, 2), (1, 1), (66.5 * mm, 120.5 * mm)),
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# 189x 25.4mm x 10mm mini labels
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4731: (7, 27, (25.4 * mm, 10 * mm), (2.5 * mm, 0), (9 * mm, 13.5 * mm), A4),
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# 2.6 x 1 address labels
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5160: (3, 10, (187, 72), (11, 0), (14, 36), A4),
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5161: (2, 10, (288, 72), (0, 0), (18, 36), A4),
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# 4 x 2 address labels
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5163: (2, 5, (288, 144), (0, 0), (18, 36), A4),
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# 1.75 x 0.5 return address labels
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5167: (4, 20, (126, 36), (0, 0), (54, 36), A4),
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# 3.5 x 2 business cards
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5371: (2, 5, (252, 144), (0, 0), (54, 36), A4),
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# 48x 45.7x21.2mm
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4778: (4, 12, (45.7 * mm, 21.2 * mm), (0.25 * cm, 0), (1.1 * cm, 2 * cm), A4),
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# APLI 100984 40x 52.5x29.7mm
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100984: (4, 10, (52.5 * mm, 29.7 * mm), (0, 0), (0, 0), A4),
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}
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class AveryLabel:
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def __init__(self, label, **kwargs):
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data = labelInfo[label]
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self.across = data[0]
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self.down = data[1]
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self.size = data[2]
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self.labelsep = self.size[0] + data[3][0], self.size[1] + data[3][1]
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self.margins = data[4]
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self.top_down = True
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self.debug = False
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self.pagesize = data[5]
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self.position = 0
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self.__dict__.update(kwargs)
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def open(self, filename):
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"""open a canvas for the file"""
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self.canvas = canvas.Canvas(filename, pagesize=self.pagesize)
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if self.debug:
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self.canvas.setPageCompression(0)
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self.canvas.setLineJoin(1)
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self.canvas.setLineCap(1)
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def top_left(self, x=None, y=None):
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""" return top left"""
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if x is None:
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x = self.position
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if y is None:
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if self.top_down:
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x, y = divmod(x, self.down)
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else:
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y, x = divmod(x, self.across)
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return (
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self.margins[0] + x * self.labelsep[0],
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self.pagesize[1] - self.margins[1] - (y + 1) * self.labelsep[1],
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)
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def advance(self):
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""" move to next position"""
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self.position += 1
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if self.position == self.across * self.down:
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self.canvas.showPage()
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self.position = 0
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def close(self):
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"""save and close canvas"""
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if self.position:
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self.canvas.showPage()
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self.canvas.save()
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self.canvas = None
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# To render, you can either create a template and tell me
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# "go draw N of these templates" or provide a callback.
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# Callback receives canvas, width, height.
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#
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# Or, pass a callable and an iterator. We'll do one label
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# per iteration of the iterator.
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def render(self, thing, count, offset=0, *args):
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""" render loop"""
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assert callable(thing) or isinstance(thing, str)
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if isinstance(count, Iterator):
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self.render_iterator(thing, count)
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return
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canv = self.canvas
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for i in range(offset + count):
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if i >= offset:
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canv.saveState()
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canv.translate(*self.top_left())
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if self.debug:
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canv.setLineWidth(0.25)
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canv.rect(0, 0, self.size[0], self.size[1])
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if callable(thing):
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thing(canv, self.size[0], self.size[1], *args)
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elif isinstance(thing, str):
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canv.doForm(thing)
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canv.restoreState()
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self.advance()
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def render_iterator(self, func, iterator):
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""" render loop for iterator """
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canv = self.canvas
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for chunk in iterator:
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canv.saveState()
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canv.translate(*self.top_left())
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if self.debug:
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canv.setLineWidth(0.25)
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canv.rect(0, 0, self.size[0], self.size[1])
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func(canv, self.size[0], self.size[1], chunk)
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canv.restoreState()
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self.advance()
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