Ian Hood wrote:
I am a newbie working through the zope book and tutorials. The zope book examples regarding Image manipulation states that the python PIF is required.
I suppose you want PIL == Python Image Library instead of PIF! http://www.pythonware.com/products/pil/ I do not know about any PIF in Zope/Python context.
The only info I can find for installing PIF is Unix/Linux oriented..
I believe it'll be easier for a newbie to use PIL modules from Zope ExternalMethods. - Install PIL in Windows from binaries (site mentioned above). - Just create a file in <Zope install path>\Extensions, and inside ZMI (Zope Management Interface) create a ExternalMethod object that maps to a function inside the prior file. The file that contains the function bound to the ExternalMethod inside Zope could look like the following example: <myfile.py> import os from StringIO import StringIO from PIL import Image, ImageDraw, ImageFont, ImageFilter, ImageChops # to insert Images inside Zope from OFS.Image import manage_addImage def make_label(label, fontname, fontsize, fg=(0,0,0), bg=(0,0,0), transp=10): """Return StringIO object with a image that represents a transparent label""" font = ImageFont.truetype(fontname ,fontsize) Img=Image.new("L", (10,10),0) color_list = [] for c in bg+fg: color_list.append(c) Img.putpalette(color_list) draw = ImageDraw.Draw(Img) sizex, sizey = draw.textsize(label,font=font) Img = Img.resize((sizex,sizey)) draw = ImageDraw.Draw(Img) bimsize = (sizex, sizey) width,height = bimsize xoff = yoff = 0 draw.text((xoff,yoff), label, fill=1, font=font) imgfile = StringIO() Img.save(imgfile,'png', transparency=transp) imgfile.seek(0,0) del Img return imgfile def zope_make_label(self, oid, label, fontname, fontsize, fg, bg, transp): imgfile = make_label(label, fontname, fontsize, fg, bg, transp) manage_addImage(self, oid, imgfile) del imgfile </myfile.py> best regards, Senra -- Rodrigo Senra MSc Computer Engineer rodsenra@gpr.com.br GPr Sistemas Ltda http://www.gpr.com.br