From 8822625f9640e2627ce658a336832fce810dad7d Mon Sep 17 00:00:00 2001
From: "Solan Delvenne (sode)" <sode@odoo.com>
Date: Tue, 29 Nov 2022 15:14:28 +0000
Subject: [PATCH] [FIX] snailmail: overwrite margins in letters
In order to pass the validation of the snailmail provider, the margins
are required to have nothing but white pixels. To avoid letters being
stuck until their layout is fixed, we fill the margins with white.
closes odoo/odoo#107111
X-original-commit: 9022cba0e1419467060cbcb95bd5db01b9cc5fea
Signed-off-by: Florian Daloze (fda) <fda@odoo.com>
Signed-off-by: Louis Baudoux (lba) <lba@odoo.com>
Signed-off-by: Solan Delvenne (sode) <sode@odoo.com>
---
addons/snailmail/models/snailmail_letter.py | 49 ++++++++++++++++++++-
1 file changed, 48 insertions(+), 1 deletion(-)
diff --git a/addons/snailmail/models/snailmail_letter.py b/addons/snailmail/models/snailmail_letter.py
index 9e05021e1fbb..a3be57de6730 100644
--- a/addons/snailmail/models/snailmail_letter.py
+++ b/addons/snailmail/models/snailmail_letter.py
@@ -4,7 +4,7 @@ import re
import base64
import io
-from PyPDF2 import PdfFileReader, PdfFileMerger
+from PyPDF2 import PdfFileReader, PdfFileMerger, PdfFileWriter
from reportlab.platypus import Frame, Paragraph, KeepInFrame
from reportlab.lib.units import mm
from reportlab.lib.pagesizes import A4
@@ -149,6 +149,7 @@ class SnailmailLetter(models.Model):
if (paperformat.format == 'custom' and paperformat.page_width != 210 and paperformat.page_height != 297) or paperformat.format != 'A4':
raise UserError(_("Please use an A4 Paper format."))
pdf_bin, unused_filetype = report.with_context(snailmail_layout=not self.cover, lang='en_US')._render_qweb_pdf(self.res_id)
+ pdf_bin = self._overwrite_margins(pdf_bin)
if self.cover:
pdf_bin = self._append_cover_page(pdf_bin)
attachment = self.env['ir.attachment'].create({
@@ -462,3 +463,49 @@ class SnailmailLetter(models.Model):
out_buff = io.BytesIO()
merger.write(out_buff)
return out_buff.getvalue()
+
+ def _overwrite_margins(self, invoice_bin: bytes):
+ """
+ Fill the margins with white for validation purposes.
+ """
+ pdf_buf = io.BytesIO()
+ canvas = Canvas(pdf_buf, pagesize=A4)
+ canvas.setFillColorRGB(255, 255, 255)
+ page_width = A4[0]
+ page_height = A4[1]
+
+ # Horizontal Margin
+ hmargin_width = page_width
+ hmargin_height = 5 * mm
+
+ # Vertical Margin
+ vmargin_width = 5 * mm
+ vmargin_height = page_height
+
+ # Bottom left square
+ sq_width = 15 * mm
+
+ # Draw the horizontal margins
+ canvas.rect(0, 0, hmargin_width, hmargin_height, stroke=0, fill=1)
+ canvas.rect(0, page_height, hmargin_width, -hmargin_height, stroke=0, fill=1)
+
+ # Draw the vertical margins
+ canvas.rect(0, 0, vmargin_width, vmargin_height, stroke=0, fill=1)
+ canvas.rect(page_width, 0, -vmargin_width, vmargin_height, stroke=0, fill=1)
+
+ # Draw the bottom left white square
+ canvas.rect(0, 0, sq_width, sq_width, stroke=0, fill=1)
+ canvas.save()
+ pdf_buf.seek(0)
+
+ new_pdf = PdfFileReader(pdf_buf)
+ curr_pdf = PdfFileReader(io.BytesIO(invoice_bin))
+ out = PdfFileWriter()
+ for page in curr_pdf.pages:
+ page.mergePage(new_pdf.getPage(0))
+ out.addPage(page)
+ out_stream = io.BytesIO()
+ out.write(out_stream)
+ out_bin = out_stream.getvalue()
+ out_stream.close()
+ return out_bin
--
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