def generate_skript(skript): # appending skript file to cover
cover_path = SkriptGenerator.cover_dir + "Deckblatt_" + skript.article_number + ".pdf"
skript_path = SkriptGenerator.skript_dir + "SkriptFile_" + skript.article_number + ".pdf"
finish_path = SkriptGenerator.finish_dir + "Skript_" + skript.article_number + ".pdf"
# remove old skript file
FileSystemStorage().delete(finish_path)
if not FileSystemStorage().exists(skript_path): # no file available, abort
return
# (re-)generate cover
SkriptGenerator.generate_cover(skript)
try:
merger = PdfFileMerger()
merger.append(PdfFileReader(FileSystemStorage().open(cover_path, 'rb')))
merger.append(PdfFileReader(FileSystemStorage().open(skript_path, 'rb')))
output_stream = FileSystemStorage().open(finish_path, 'wb')
merger.write(output_stream)
output_stream.close()
except:
return -1 # error creating the skript
return "Skript_" + skript.article_number + ".pdf"
def generate_cover_old(skript):
# from http://allfont.de/download/comic-sans-ms-bold/ (not for commercial use)
pdfmetrics.registerFont(TTFont('Comic', SkriptGenerator.font_dir + 'comic-sans-ms.ttf'))
pdfmetrics.registerFont(TTFont('Comic bold', SkriptGenerator.font_dir + 'comic-sans-ms-bold.ttf'))
packet = io.BytesIO()
text1 = skript.name
text2 = ""
# splitting title appropriately
pos = text1.find(':')
if pos >= 20: # split line after :
text1 = skript.name[0:pos + 1]
text2 = skript.name[pos + 1:].strip()
elif len(text1) > 40: # split line longer than 40 chars
tokens = text1.split()
text1 = ""
text2 = ""
for token in tokens:
if len(text1) > 30:
text2 = text2 + " " + token
else:
text1 = text1 + " " + token
default_font = "Comic bold"
id1 = {
"text": skript.article_number,
"font": default_font,
"size": 28,
"x-pos": 147 * mm,
"y-pos": 262 * mm,
}
id2 = {
"text": id1["text"],
"font": default_font,
"size": 28,
"x-pos": 147 * mm,
"y-pos": 34 * mm,
}
title = {
"text": text1,
"font": default_font,
"size": 18,
"x-pos": 34 * mm,
"y-pos": 209 * mm,
}
title2 = {
"text": text2,
"font": title["font"],
"size": title["size"],
"x-pos": title["x-pos"],
"y-pos": 201 * mm,
}
arrow = {
"text": ">>",
"font": title["font"],
"size": title["size"],
"x-pos": 23 * mm,
"y-pos": title["y-pos"],
}
author = {
"text": skript.author.last_name + ", " + skript.author.title + " " + skript.author.first_name,
"font": "Comic",
"size": 16,
"x-pos": 34 * mm,
"y-pos": 166 * mm,
}
insertions = [id1, id2, arrow, title, title2, author]
can = canvas.Canvas(packet, pagesize=A4)
for insert in insertions:
can.setFont(insert["font"], insert["size"])
can.drawString(insert["x-pos"], insert["y-pos"], insert["text"])
can.save()
# move to the beginning of the StringIO buffer
packet.seek(0)
new_pdf = PdfFileReader(packet)
# read PDF template
existing_pdf = PdfFileReader(FileSystemStorage().open(SkriptGenerator.template_path, 'rb'))
output = PdfFileWriter()
# add the "watermark" (which is the new pdf) on the existing page
page = new_pdf.getPage(0)
page.mergePage(existing_pdf.getPage(0))
output.addPage(page)
# appending the following pages of cover template
for i in range(1, existing_pdf.getNumPages()):
output.addPage(existing_pdf.getPage(i))
# finally, write "output" to a real file
outputStream = FileSystemStorage().open(SkriptGenerator.cover_dir + "Deckblatt_" + skript.article_number + ".pdf", "wb")
output.write(outputStream)
outputStream.close()
return "Deckblatt_" + skript.article_number + ".pdf"
