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author | David Lamparter <equinox@diac24.net> | 2013-12-15 23:41:57 +0100 |
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committer | David Lamparter <equinox@diac24.net> | 2013-12-15 23:41:57 +0100 |
commit | d29a09bee752791c977088a2de7dd09e5f436116 (patch) | |
tree | b835897574067523059dc44fbc7ef594b87bf01b | |
parent | 1e5074b52e4bb29c9cc1574929d9e8c681b2ae0e (diff) |
add border around QR codes
-rw-r--r-- | ptlayout.py | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/ptlayout.py b/ptlayout.py index 2ead50c..07266b3 100644 --- a/ptlayout.py +++ b/ptlayout.py @@ -83,6 +83,7 @@ class PTLQRCode(PTLayoutElem): super(PTLQRCode, self).__init__() self.qrcontent = '' self.hborder = 4 + self.vborder = 4 self.invert = False def properties(self): @@ -97,16 +98,16 @@ class PTLQRCode(PTLayoutElem): return self._render(cctx, False, h) def _render(self, cctx, sizeonly, h): - qr = qrcode.QRCode(border = 0) + qr = qrcode.QRCode(border = 0, error_correction = qrcode.ERROR_CORRECT_L) qr.add_data(self.qrcontent) qr.make(fit = True) qm = qr.get_matrix() qmlen = len(qm) - bpp = h / qmlen - if sizeonly: return (bpp * qmlen + self.hborder * 2, bpp * qmlen) + bpp = (h - self.vborder) / qmlen + if sizeonly: return (bpp * qmlen + self.hborder * 2, bpp * qmlen + self.vborder * 2) if self.invert: - cctx.rectangle(0, 0, bpp * qmlen + self.hborder * 2, h) + cctx.rectangle(0, 0, bpp * qmlen + self.hborder * 2, h + self.vborder * 2) cctx.fill() cctx.set_source_rgba(1.0, 1.0, 1.0, 0.0) |