[reportlab-users] reportlab-users Digest, Vol 109, Issue 6

[Markos Kapes]

On 27 Φεβ 2013, at 12:00,
"reportlab-users-request at lists2.reportlab.com"
<reportlab-users-request at lists2.reportlab.com> wrote:


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> Today's Topics:

>

>   1. TrueType fonts and barcode widgets (Markos Kapes)

>   2. Re: TrueType fonts and barcode widgets (J. R. Carroll)

>

>

> ----------------------------------------------------------------------

>

> Message: 1

> Date: Tue, 26 Feb 2013 23:23:34 -0500

> From: Markos Kapes <mkapes at gmail.com>

> Subject: [reportlab-users] TrueType fonts and barcode widgets

> To: reportlab-users at lists2.reportlab.com

> Message-ID: <B5FC8D39-9236-43D8-9C3C-50834A076FED at gmail.com>

> Content-Type: text/plain; charset=us-ascii

>

> When using True Type fonts as prescribed in the documentation, I get a value error if I use a unicode font with a barcode widget if I don't also set the font of the barcode widget to the same font. For the time being, it's not a big deal as it still gets the job done, but I'm curious what I might be doing wrong. The code works fine with builtin 'Courier' but if I try a system unicode font, it chokes unless I make sure barcode has the same font.

>

> Thanks,

> --Markos Kapes

>

> The code relevant code is as follows, followed by the stack trace.

>    rl_config.warnOnMissingFontGlyphs = 1

>    registerFont(TTFont('Courier New', 'Courier New.ttf'))

>    registerFont(TTFont('Courier New Bold', 'Courier New Bold.ttf'))

>    registerFont(TTFont('Courier New Italic', 'Courier New Italic.ttf'))

>    registerFont(TTFont('Courier New Bold Italic', 'Courier New Bold Italic.ttf'))

>    registerFontFamily('Courier New', normal='Courier New', bold='Courier New Bold', italic='Courier New Italicc', boldItalic='Courier New Bold Italic')

>

>    font = 'Courier New'

>    font_size = 9

>    doc_width = 2.4*inch

>    doc_height = 2*inch

>    margin = 0.1*inch

>    tmpfile = tempfile.NamedTemporaryFile(delete=False)

>

>    canvas1 = canvas.Canvas(tmpfile, (doc_width, doc_height))

>    #change coordinates so origin is now at left bottom margin corner

>    canvas1.translate(margin, margin)

>    text_object = canvas1.beginText()

>    text_object.setFont(font, font_size)

>    text_object.setTextOrigin(0, column_height-margin)

>    text_object.textOut( title)

>    text_object.moveCursor(120, 0)

>    text_object.textLine(price)

>     canvas1.drawText(text_object)

>    #create barcode and draw it at the origin.

>    barcode1=barcode.createBarcodeDrawing('EAN13', value=isbn, validate=True, width= column_width, height=1.4*inch, humanReadable=True, fontName=font)

>    renderPDF.draw(barcode1, canvas1, 0,0)

>    canvas1.showPage()

>    canvas1.save()

>

>

> ---------------------------------------------------------------------------

> ValueError                                Traceback (most recent call last)

> /Library/Python/2.7/site-packages/ipython-0.14.dev-py2.7.egg/IPython/utils/py3compat.pyc in execfile(fname, *where)

>    177             else:

>    178                 filename = fname

> --> 179             __builtin__.execfile(filename, *where)

>

> /Users/mkapes/Documents/Developer/git_repos/infoshopkeeper/specialOrderLabel.py in <module>()

>     92     canvas1.save()

>     93

> ---> 94 print_special_order_label(isbn=isbn, booktitle=booktitle, author=author, price=price, customer_name=customer_name, customer_phone=customer_phone, customer_email=customer_email)

>

> /Users/mkapes/Documents/Developer/git_repos/infoshopkeeper/specialOrderLabel.py in print_special_order_label(isbn, booktitle, author, price, customer_name, customer_phone, customer_email)

>     90     canvas1.drawText(text_object)

>     91     canvas1.showPage()

> ---> 92     canvas1.save()

>     93

>     94 print_special_order_label(isbn=isbn, booktitle=booktitle, author=author, price=price, customer_name=customer_name, customer_phone=customer_phone, customer_email=customer_email)

>

> /Library/Python/2.7/site-packages/reportlab/pdfgen/canvas.pyc in save(self)

>   1192            After this operation the canvas must not be used further."""

>   1193         if len(self._code): self.showPage()

> -> 1194         self._doc.SaveToFile(self._filename, self)

>   1195

>   1196     def getpdfdata(self):

>

> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.pyc in SaveToFile(self, filename, canvas)

>    234             filename = utf8str(filename)

>    235             f = open(filename, "wb")

> --> 236         f.write(self.GetPDFData(canvas))

>    237         if myfile:

>    238             f.close()

>

> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.pyc in GetPDFData(self, canvas)

>    246         # realize delayed fonts

>    247         for fnt in self.delayedFonts:

> --> 248             fnt.addObjects(self)

>    249         # add info stuff to signature

>    250         self.info.invariant = self.invariant

>

> /Library/Python/2.7/site-packages/reportlab/pdfbase/ttfonts.pyc in addObjects(self, doc)

>   1124             if doc.compression:

>   1125                 cmapStream.filters = [pdfdoc.PDFZCompress]

> -> 1126             pdfFont.ToUnicode = doc.Reference(cmapStream, 'toUnicodeCMap:' + baseFontName)

>   1127

>   1128             pdfFont.FontDescriptor = self.face.addSubsetObjects(doc, baseFontName, subset)

>

> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.pyc in Reference(self, object, name, InstanceType)

>    534             other = idToObject[name]

>    535             if other!=object:

> --> 536                 raise ValueError, "redefining named object: "+repr(name)

>    537             return PDFObjectReference(name)

>    538         if iob:

>

> ValueError: redefining named object: 'toUnicodeCMap:AAAAAA+CourierNewPSMT'

>> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.py(536)Reference()

>    535             if other!=object:

> --> 536                 raise ValueError, "redefining named object: "+repr(name)

>    537             return PDFObjectReference(name)

>

> ------------------------------

>

> Message: 2

> Date: Tue, 26 Feb 2013 23:52:21 -0500

> From: "J. R. Carroll" <jrcarroll at jrcresearch.net>

> Subject: Re: [reportlab-users] TrueType fonts and barcode widgets

> To: reportlab-users <reportlab-users at lists2.reportlab.com>

> Message-ID:

>    <CAPjhJmVyhZ7W9GJZtxOt6PnwRK+VHMEOPguYmPfswg1qy9rSFw at mail.gmail.com>

> Content-Type: text/plain; charset="iso-8859-1"

>

> Quickly looking at this, could it be that you are trying to embed a font

> that does not exists? (your stack shows it's happening when you save the

> pdf)...

>

> Perhaps the line that reads:

> *

> *

>

>> *italic='Courier New Italicc'*,  (extra c?)

>

>

> Not sure if that's a typo, but you might want to do some debugging to make

> sure all your fonts are available and are usable in a separate reportlab

> instance.  If that doesn't fix the problem (and no one else responds with

> the solution) let me know.

>

> -J

>

> ----

>

>

> J. R. Carroll

> Independent Researcher through Hurtz Labs

> Research Methods, Test Development, and Statistics

> www.jrcresearch.net

> www.ontvp.com

> Cell:  (650) 776-6613

> Email: jrcarroll at jrcresearch.net

>          jrcarroll at hurtzlab.com

>          jrc.csus at gmail.com

> <https://www.facebook.com/J.R.Car>

> <https://twitter.com/jNammer><http://www.linkedin.com/in/jrcarroll>

>

>

>

> On Tue, Feb 26, 2013 at 11:23 PM, Markos Kapes <mkapes at gmail.com> wrote:

>

>> When using True Type fonts as prescribed in the documentation, I get a

>> value error if I use a unicode font with a barcode widget if I don't also

>> set the font of the barcode widget to the same font. For the time being,

>> it's not a big deal as it still gets the job done, but I'm curious what I

>> might be doing wrong. The code works fine with builtin 'Courier' but if I

>> try a system unicode font, it chokes unless I make sure barcode has the

>> same font.

>>

>> Thanks,

>> --Markos Kapes

>>

>> The code relevant code is as follows, followed by the stack trace.

>>    rl_config.warnOnMissingFontGlyphs = 1

>>    registerFont(TTFont('Courier New', 'Courier New.ttf'))

>>    registerFont(TTFont('Courier New Bold', 'Courier New Bold.ttf'))

>>    registerFont(TTFont('Courier New Italic', 'Courier New Italic.ttf'))

>>    registerFont(TTFont('Courier New Bold Italic', 'Courier New Bold

>> Italic.ttf'))

>>    registerFontFamily('Courier New', normal='Courier New', bold='Courier

>> New Bold', italic='Courier New Italicc', boldItalic='Courier New Bold

>> Italic')

>>

>>    font = 'Courier New'

>>    font_size = 9

>>    doc_width = 2.4*inch

>>    doc_height = 2*inch

>>    margin = 0.1*inch

>>    tmpfile = tempfile.NamedTemporaryFile(delete=False)

>>

>>    canvas1 = canvas.Canvas(tmpfile, (doc_width, doc_height))

>>    #change coordinates so origin is now at left bottom margin corner

>>    canvas1.translate(margin, margin)

>>    text_object = canvas1.beginText()

>>    text_object.setFont(font, font_size)

>>    text_object.setTextOrigin(0, column_height-margin)

>>    text_object.textOut( title)

>>    text_object.moveCursor(120, 0)

>>    text_object.textLine(price)

>>     canvas1.drawText(text_object)

>>    #create barcode and draw it at the origin.

>>    barcode1=barcode.createBarcodeDrawing('EAN13', value=isbn,

>> validate=True, width= column_width, height=1.4*inch, humanReadable=True,

>> fontName=font)

>>    renderPDF.draw(barcode1, canvas1, 0,0)

>>    canvas1.showPage()

>>    canvas1.save()

>>

>>

>> ---------------------------------------------------------------------------

>> ValueError                                Traceback (most recent call last)

>> /Library/Python/2.7/site-packages/ipython-0.14.dev-py2.7.egg/IPython/utils/py3compat.pyc

>> in execfile(fname, *where)

>>    177             else:

>>    178                 filename = fname

>> --> 179             __builtin__.execfile(filename, *where)

>>

>> /Users/mkapes/Documents/Developer/git_repos/infoshopkeeper/specialOrderLabel.py

>> in <module>()

>>     92     canvas1.save()

>>     93

>> ---> 94 print_special_order_label(isbn=isbn, booktitle=booktitle,

>> author=author, price=price, customer_name=customer_name,

>> customer_phone=customer_phone, customer_email=customer_email)

>>

>> /Users/mkapes/Documents/Developer/git_repos/infoshopkeeper/specialOrderLabel.py

>> in print_special_order_label(isbn, booktitle, author, price, customer_name,

>> customer_phone, customer_email)

>>     90     canvas1.drawText(text_object)

>>     91     canvas1.showPage()

>> ---> 92     canvas1.save()

>>     93

>>     94 print_special_order_label(isbn=isbn, booktitle=booktitle,

>> author=author, price=price, customer_name=customer_name,

>> customer_phone=customer_phone, customer_email=customer_email)

>>

>> /Library/Python/2.7/site-packages/reportlab/pdfgen/canvas.pyc in save(self)

>>   1192            After this operation the canvas must not be used

>> further."""

>>   1193         if len(self._code): self.showPage()

>> -> 1194         self._doc.SaveToFile(self._filename, self)

>>   1195

>>   1196     def getpdfdata(self):

>>

>> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.pyc in

>> SaveToFile(self, filename, canvas)

>>    234             filename = utf8str(filename)

>>    235             f = open(filename, "wb")

>> --> 236         f.write(self.GetPDFData(canvas))

>>    237         if myfile:

>>    238             f.close()

>>

>> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.pyc in

>> GetPDFData(self, canvas)

>>    246         # realize delayed fonts

>>    247         for fnt in self.delayedFonts:

>> --> 248             fnt.addObjects(self)

>>    249         # add info stuff to signature

>>    250         self.info.invariant = self.invariant

>>

>> /Library/Python/2.7/site-packages/reportlab/pdfbase/ttfonts.pyc in

>> addObjects(self, doc)

>>   1124             if doc.compression:

>>   1125                 cmapStream.filters = [pdfdoc.PDFZCompress]

>> -> 1126             pdfFont.ToUnicode = doc.Reference(cmapStream,

>> 'toUnicodeCMap:' + baseFontName)

>>   1127

>>   1128             pdfFont.FontDescriptor =

>> self.face.addSubsetObjects(doc, baseFontName, subset)

>>

>> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.pyc in

>> Reference(self, object, name, InstanceType)

>>    534             other = idToObject[name]

>>    535             if other!=object:

>> --> 536                 raise ValueError, "redefining named object:

>> "+repr(name)

>>    537             return PDFObjectReference(name)

>>    538         if iob:

>>

>> ValueError: redefining named object: 'toUnicodeCMap:AAAAAA+CourierNewPSMT'

>> /Library/Python/2.7/site-packages/reportlab/pdfbase/pdfdoc.py(536)Reference()

>>    535             if other!=object:

>> --> 536                 raise ValueError, "redefining named object:

>> "+repr(name)

>>    537             return PDFObjectReference(name)

>> _______________________________________________

>> reportlab-users mailing list

>> reportlab-users at lists2.reportlab.com

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> End of reportlab-users Digest, Vol 109, Issue 6

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