[reportlab-users] getRGBdata

Thu, 15 Apr 2004 15:13:03 +0200

Hello,

could please someone point out how to put a graphic in the header of my
first page? Please find my code below. I tried with several diffrent jpg
and gif and png graphic files. I always do get the same error:

   File "/home/zope/lib/python2.1/reportlab/pdfgen/canvas.py", line 586,
   in drawImage
     rawdata = image.getRGBData()
   AttributeError: PDFImage instance has no attribute 'getRGBData'

Please replace PDFImage with Image or PIL_Image.  Just in case it
matters, this is a Zope External Script.

I have installed:
   Zope 2.6.1
   Python 2.1.3
   PIL 1.1.4
   ReportLab 1.19
   Linux 2.4.20

TIA

Ulrich

from reportlab.platypus.paragraph import Paragraph
from reportlab.platypus.tables import Table
from reportlab.platypus.doctemplate import *
from reportlab.platypus import Flowable, PageBreak, Image
from reportlab.lib.units import inch, cm
from reportlab.lib.pagesizes import A4
from reportlab.lib import colors
from reportlab.lib.styles import getSampleStyleSheet
from PIL import Image as PIL_Image
from reportlab.pdfgen.pdfimages import PDFImage
from reportlab.pdfgen import canvas
import cStringIO

def putLogo(canvas, doc):
     canvas.saveState()

     image   = PDFImage('/home/zope/Extensions/pdflogo.jpg', 4*cm, 2*cm)
     canvas.drawImage(image, 1*cm, doc.pagesize[1] - 1*cm)

#    image   = PIL_Image.open('/home/zope/Extensions/pdflogo.jpg')
#    (width, height) = image.size
#    # scale it to be 0.75 inch high
#    multi   = ((height + 0.0) / (0.75 * cm))
#    width   = int(width / multi)
#    height  = int(height / multi)
#    canvas.drawImage(image, 1*cm, doc.pagesize[1] - 1*cm, width, height)
     canvas.restoreState()

def pdf1(self):
     try:
         report      = cStringIO.StringIO ()
         document    = SimpleDocTemplate(report, pagesize=A4)
         styles      = getSampleStyleSheet()
         style       = styles["Normal"]
         text        = Paragraph("Hello World", style)
         document.build([text], onFirstPage=putLogo)
         self.REQUEST.RESPONSE.setHeader('Content-type', 'application/pdf')
         return report.getvalue()
     except:
         import traceback, sys, cgi
         content = sys.stdout = sys.stderr = cStringIO.StringIO()
         self.REQUEST.RESPONSE.setHeader('Content-Type', 'text/html')
         traceback.print_exc()
         sys.stdout = sys.__stdout__
         sys.stderr = sys.__stderr__
         content =
'<html><head></head><body><pre>%s</pre></body></html>' %
cgi.escape(content.getvalue())
         return content