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pybadges_back.py
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pybadges_back.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Licensed under the WTFPL license, http://sam.zoy.org/wtfpl/.
import cairo
import pango
import pangocairo
import os.path
import sys
import optparse
from qrcodes import download_qr_code
__version__ = '0.1'
BADGE_HEIGHT = 148.5
BADGE_WIDTH = 105
PAGE_HEIGHT = 297
PAGE_WIDTH = 210
INNER_MARGIN = 0
TEXT_COLOR = (0.2, 0.2, 0.2)
TEXT_COLOR_ROLE = (1, 1, 1)
def convert_mm_to_dots(mm):
return float(mm) / 25.4 * 72
def draw_text(ctx, pc, text, base_font_sz, y, text_width, text_height,
area_width, multiline=False):
font_sz = base_font_sz
while font_sz > 6:
name_fd = pango.FontDescription("Product Sans")
name_fd.set_size(font_sz * pango.SCALE)
layout = pc.create_layout()
layout.set_font_description(name_fd)
layout.set_text(text)
layout.set_alignment(pango.ALIGN_CENTER)
if multiline:
layout.set_width(int(convert_mm_to_dots(text_width) * pango.SCALE))
if layout.get_size()[0] > (convert_mm_to_dots(text_width) * pango.SCALE):
font_sz -= 1
continue
if layout.get_size()[1] > (convert_mm_to_dots(text_height) * pango.SCALE):
font_sz -= 1
continue
# draw
text_x, text_y, text_w, text_h = layout.get_extents()[1]
x = (convert_mm_to_dots(area_width) / 2) - (text_w/2.0)/pango.SCALE - int(float(text_x)/pango.SCALE)
y = y + (convert_mm_to_dots(text_height)/2) - (text_h/2.0)/pango.SCALE - int(float(text_y)/pango.SCALE)
ctx.move_to(x, y)
pc.show_layout(layout)
break
def draw_badge(ctx, width, height, description, background_image, qrcodes_directory, id=''):
im = cairo.ImageSurface.create_from_png(background_image)
ctx.save()
ctx.rectangle(0, 0, convert_mm_to_dots(width),
convert_mm_to_dots(height))
ctx.scale(float(convert_mm_to_dots(width)) / im.get_width(),
float(convert_mm_to_dots(height)) / im.get_height())
ctx.set_source_surface(im)
ctx.fill()
if len(description) == 0:
return
name = description[0].strip()
if len(description) > 1:
last_name = description[1].strip()
else:
last_name = ''
if len(description) > 6:
id = description[6].strip()
id = name + "_" + last_name + "_" +id
else:
id = name + "_" + last_name
# -- QRCODE --
file_path = qrcodes_directory + "/qrcode_" + str(id) + ".png"
if(os.path.exists(file_path)):
im = cairo.ImageSurface.create_from_png(file_path)
width_offset = 910
height_offset = 1420
ctx.rectangle(0,0, 1400,1800)
ctx.translate(width_offset, height_offset)
ctx.scale(0.7, 0.7)
ctx.set_source_surface(im)
ctx.fill()
# -- END QRCODE --
else:
print("QR code does not exist: " + file_path)
ctx.restore()
ctx.set_source_rgb(0.9, 0.9, 0.9)
ctx.rectangle(0, 0, convert_mm_to_dots(width),
convert_mm_to_dots(height))
ctx.stroke()
def generate_document(input_csv, output_pdf, background_image, qrcodes_directory):
surface = cairo.PDFSurface(output_pdf,
convert_mm_to_dots(PAGE_WIDTH),
convert_mm_to_dots(PAGE_HEIGHT))
nb_badges_height = PAGE_HEIGHT / (BADGE_HEIGHT + INNER_MARGIN)
nb_badges_width = PAGE_WIDTH / (BADGE_WIDTH + INNER_MARGIN)
margin_top_bottom = (PAGE_HEIGHT - \
nb_badges_height * BADGE_HEIGHT - \
(nb_badges_height - 1) * INNER_MARGIN) / 2
margin_left_right = (PAGE_WIDTH - \
nb_badges_width * BADGE_WIDTH - \
(nb_badges_width - 1) * INNER_MARGIN) / 2
import csv
csvFile = csv.reader(open(input_csv, 'rb'), delimiter=',')
ctx = cairo.Context(surface)
row = 0
col = 0
badges = list(csvFile)
nb_badges = len(badges)
if(nb_badges % 4 != 0):
nb_missing_badges = 4 - nb_badges % 4
# print(nb_badges, nb_missing_badges)
for i in range(nb_missing_badges):
badges.append(["","","","","","",""])
for index in range(len(badges)):
# Reverse the badge order for printing issues.
if(index%2 == 0):
badge_back = badges[index + 1]
else:
badge_back = badges[index-1]
ctx.save()
ctx.translate(convert_mm_to_dots(margin_left_right + col * (BADGE_WIDTH + INNER_MARGIN)),
convert_mm_to_dots(margin_top_bottom + row * (BADGE_HEIGHT + INNER_MARGIN)))
draw_badge(ctx, BADGE_WIDTH, BADGE_HEIGHT, badge_back, background_image, qrcodes_directory)
ctx.restore()
col += 1
if col == nb_badges_width:
col = 0
row += 1
if row == nb_badges_height:
col = 0
row = 0
surface.show_page()
surface.finish()
def download_qr_codes(input_csv):
import csv
csvFile = csv.reader(open(input_csv, 'rb'), delimiter=',')
badges = list(csvFile)
for index, badge in enumerate(badges):
# Reverse the badge order for printing issues.
if(index%2 == 0):
badge_back = badges[index + 1]
else:
badge_back = badges[index-1]
def main():
usage = '%prog -o output-pdf -i input-csv -b background-image'
parser = optparse.OptionParser(usage=usage,
version='%%prog %s' % __version__)
parser.add_option('-o', dest='output_pdf', metavar='OUTPUT_PDF',
help='specify the location of the output PDF.')
parser.add_option('-i', dest='input_csv', metavar='INPUT_CSV',
help='specify the location of the input CSV.')
parser.add_option('-b', dest='background_image', metavar='BACKGROUND_IMAGE',
help='specify the location of the background image.')
parser.add_option('-q', dest='qrcodes_directory', metavar='QRCODES_DIRECTORY',
help='specify the location of the qr codes image.')
(options, args) = parser.parse_args()
if len(args):
parser.print_help()
return 1
if not options.output_pdf:
parser.error("Missing output PDF")
if not options.input_csv:
parser.error("Missing input CSV")
if not os.path.exists(options.input_csv):
parser.error("Input CSV %s does not exist" % options.input_csv)
if not options.background_image:
parser.error("Missing background image")
if not os.path.exists(options.background_image):
parser.error("Background image %s does not exist" % options.background_image)
if not options.qrcodes_directory:
parser.error("Missing qr_codes directory")
if not os.path.exists(options.qrcodes_directory):
parser.error("QR codes directory %s does not exist" % options.qrcodes_directory)
generate_document(options.input_csv, options.output_pdf, options.background_image, options.qrcodes_directory)
if __name__ == '__main__':
sys.exit(main())