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"""
An example of script that generates a one page invoice with barcode,
with data coming from a CSV file.
"""
import os
from fpdf import FPDF
class Form:
def __init__(self, infile):
keys = (
"name",
"type",
"x1",
"y1",
"x2",
"y2",
"font",
"size",
"bold",
"italic",
"underline",
"foreground",
"background",
"align",
"text",
"priority",
)
# parse form format file and create fields dict
self.fields = {}
with open(infile, encoding="utf8") as file:
for linea in file.readlines():
kargs = {}
for i, v in enumerate(linea.split(";")):
if v in ("", "None"):
v = None
elif v.startswith("'"):
v = v.strip()[1:-1]
else:
v = float(v.replace(",", "."))
kargs[keys[i]] = v
self.fields[kargs["name"].lower()] = kargs
self.handlers = {
"T": self.text,
"L": self.line,
"I": self.image,
"B": self.rect,
"BC": self.barcode,
}
def set(self, name, value):
if name.lower() in self.fields:
self.fields[name.lower()]["text"] = value
def render(self, outfile):
pdf = FPDF()
pdf.add_page()
pdf.set_font("helvetica", style="B", size=16)
for field in self.fields.values():
self.handlers[field["type"].upper()](pdf, **field)
pdf.output(outfile)
@staticmethod
def text(
pdf,
*_,
x1=0,
y1=0,
x2=0,
y2=0,
text="",
font="helvetica",
size=10,
bold=False,
italic=False,
underline=False,
align="",
**__
):
if text:
font = font.strip().lower()
style = ""
if bold:
style += "B"
if italic:
style += "I"
if underline:
style += "U"
align = {"I": "L", "D": "R", "C": "C", "": "", None: None}[align]
pdf.set_font(font, style, size)
# m_k = 72 / 2.54
# h = (size/m_k)
pdf.set_xy(x1, y1)
pdf.cell(w=x2 - x1, h=y2 - y1, txt=text, align=align)
# pdf.Text(x=x1,y=y1,txt=text)
@staticmethod
def line(pdf, *_, x1=0, y1=0, x2=0, y2=0, size=0, **__):
pdf.set_line_width(size)
pdf.line(x1, y1, x2, y2)
@staticmethod
def rect(pdf, *_, x1=0, y1=0, x2=0, y2=0, size=0, **__):
pdf.set_line_width(size)
pdf.rect(x1, y1, x2 - x1, y2 - y1)
@staticmethod
def image(pdf, *_, x1=0, y1=0, x2=0, y2=0, text="", **__):
pdf.image(text, x1, y1, w=x2 - x1, h=y2 - y1)
@staticmethod
def barcode(pdf, *_, x1=0, y1=0, text="", font="helvetica", size=1, **__):
font = font.lower().strip()
if font == "interleaved 2of5 nt":
pdf.interleaved2of5(text, x1, y1, w=size)
if __name__ == "__main__":
os.chdir(os.path.dirname(os.path.realpath(__file__)))
f = Form("invoice.csv")
f.set("EMPRESA", "Saraza")
f.set("logo", "logo.png")
f.render("./invoice.pdf")
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