[reportlab-users] Page background image with Platypus?

[Robin Becker]

Erik Wickstrom wrote:

> I tried this approach - but I'm starting to get other problems:

> 

> Traceback (most recent call last):

> File "/usr/local/lib/python2.4/site-packages/django/core/handlers/base.py"

> in _real_get_response

>   81. response = callback(request, *callback_args, **callback_kwargs)

> File "/root/journal/gazette/views.py" in some_view

>   101. doc.build(elements)

> 

>   AttributeError at /gazette/test/

>   GazettePageTemplate instance has no attribute 'build'

> 

> This is my class so far:

> class GazettePageTemplate(PageTemplate):

>     def __init__(self, id, pageSize=defaultPageSize):

>         self.pageWidth = pageSize[0]

>         self.pageHeight = pageSize[1]

>         frame1 = Frame(inch,

>                        3*inch,

>                        self.pageWidth - 2*inch,

>                        self.pageHeight - 518, id='cover')

>         PageTemplate.__init__(self, id, [frame1])  # note lack of onPage

> 

>     def beforeDrawPage(self, canv):

>         self.canv.drawImage('/root/journal/gazette/paper1.png',0,0,8.5*inch,11*inch)

> 

> def some_view(request):

>     response = HttpResponse(mimetype='application/pdf')

>     response['Content-Disposition'] = 'attachment; filename=gorilla-gazette.pdf'

> 

>     buffer = StringIO()

> 

>     # Our container for 'Flowable' objects

>     elements = []

> 

>     # A large collection of style sheets pre-made for us

>     styles = getSampleStyleSheet()

> 

>     # A basic document for us to write to 'hello_platypus.pdf'

>     #doc = SimpleDocTemplate(buffer)#'hello_platypus.pdf')

>     doc = GazettePageTemplate(buffer)#'hello_platypus.pdf')

>     doc.pagesize=landscape(letter)

> 

>     from reportlab.rl_config import defaultPageSize

> 

>     (MAXWIDTH, MAXHEIGHT) = defaultPageSize

> 

>     image = Image('/root/journal/gazette/paper1.png')

>     print MAXWIDTH

>     print MAXHEIGHT

>     #elements.append(KeepInFrame(MAXWIDTH, MAXHEIGHT, [image]))

>     elements.append(KeepInFrame(11*inch, 19*inch, [image]))

>     # Create two 'Paragraph' Flowables and add them to our 'elements'

>     elements.append(Paragraph("The Platypus", styles['Heading1']))

>     elements.append(Paragraph("Very <i>Special</i>!", styles['Normal']))

> 

>     # Write the document to disk

>     doc.build(elements)

>     # Get the value of the StringIO buffer and write it to the response.

>     pdf = buffer.getvalue()

>     buffer.close()

>     response.write(pdf)

>     return response

> 

> Shouldn't the build method be inherited from PageTemplate?  What am I missing?

> 

> Thanks!

> Erik

......

the build method is actually on the document not it's page templates. I don't 
know what the intention is, but I guess you should start with

doc = SimpleDocTemplate(buffer)

#and then mess with doc's pagetemplates eg

doc.pageTemplates[:] = [GazettePageTemplate('First')]

#then later

doc.build()
.......


-- 
Robin Becker