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from reportlab.test import unittest
from reportlab.test.utils import makeSuiteForClasses, outputfile
from reportlab.pdfgen.canvas import Canvas
from reportlab.pdfbase import pdfmetrics
class EncodingTestCase(unittest.TestCase):
"Make documents with custom encodings"
def test0(self):
"Make custom encodings of standard fonts"
# make a custom encoded font.
c = Canvas(outputfile('test_pdfbase_encodings.pdf'))
c.setPageCompression(0)
c.setFont('Helvetica', 12)
c.drawString(100, 700, 'The text below should be in a custom encoding in which all vowels become "z"')
# invent a new language where vowels are replaced with letter 'z'
zenc = pdfmetrics.Encoding('EncodingWithoutVowels', 'WinAnsiEncoding')
for ch in 'aeiou':
zenc[ord(ch)] = 'z'
for ch in 'AEIOU':
zenc[ord(ch)] = 'Z'
pdfmetrics.registerEncoding(zenc)
# now we can make a font based on this encoding
f = pdfmetrics.Font('FontWithoutVowels', 'Helvetica-Oblique', 'EncodingWithoutVowels')
pdfmetrics.registerFont(f)
c.setFont('FontWithoutVowels', 12)
c.drawString(125, 675, "The magic word is squamish ossifrage")
# now demonstrate adding a Euro to MacRoman, which lacks one
c.setFont('Helvetica', 12)
c.drawString(100, 650, "MacRoman encoding lacks a Euro. We'll make a Mac font with the Euro at #219:")
# WinAnsi Helvetica
pdfmetrics.registerFont(pdfmetrics.Font('Helvetica-WinAnsi', 'Helvetica-Oblique', 'WinAnsiEncoding'))
c.setFont('Helvetica-WinAnsi', 12)
c.drawString(125, 625, 'WinAnsi with Euro: character 128 = "\200"')
pdfmetrics.registerFont(pdfmetrics.Font('MacHelvNoEuro', 'Helvetica-Oblique', 'MacRomanEncoding'))
c.setFont('MacHelvNoEuro', 12)
c.drawString(125, 600, 'Standard MacRoman, no Euro: Character 219 = "\333"') # oct(219)=0333
# now make our hacked encoding
euroMac = pdfmetrics.Encoding('MacWithEuro', 'MacRomanEncoding')
euroMac[219] = 'Euro'
pdfmetrics.registerEncoding(euroMac)
pdfmetrics.registerFont(pdfmetrics.Font('MacHelvWithEuro', 'Helvetica-Oblique', 'MacWithEuro'))
c.setFont('MacHelvWithEuro', 12)
c.drawString(125, 575, 'Hacked MacRoman with Euro: Character 219 = "\333"') # oct(219)=0333
# now test width setting with and without _rl_accel - harder
# make an encoding where 'm' becomes 'i'
c.setFont('Helvetica', 12)
c.drawString(100, 500, "Recode 'm' to 'i' and check we can measure widths. Boxes should surround letters.")
sample = 'Mmmmm. ' * 6 + 'Mmmm'
c.setFont('Helvetica-Oblique',12)
c.drawString(125, 475, sample)
w = c.stringWidth(sample, 'Helvetica-Oblique', 12)
c.rect(125, 475, w, 12)
narrowEnc = pdfmetrics.Encoding('m-to-i')
narrowEnc[ord('m')] = 'i'
narrowEnc[ord('M')] = 'I'
pdfmetrics.registerEncoding(narrowEnc)
pdfmetrics.registerFont(pdfmetrics.Font('narrow', 'Helvetica-Oblique', 'm-to-i'))
c.setFont('narrow', 12)
c.drawString(125, 450, sample)
w = c.stringWidth(sample, 'narrow', 12)
c.rect(125, 450, w, 12)
c.setFont('Helvetica', 12)
c.drawString(100, 400, "Symbol & Dingbats fonts - check we still get valid PDF in StandardEncoding")
c.setFont('Symbol', 12)
c.drawString(100, 375, 'abcdefghijklmn')
c.setFont('ZapfDingbats', 12)
c.drawString(300, 375, 'abcdefghijklmn')
c.save()
def makeSuite():
return makeSuiteForClasses(EncodingTestCase)
#noruntests
if __name__ == "__main__":
unittest.TextTestRunner().run(makeSuite())
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