Re: [Zope] referencing images in products

14 Feb 2003

      Thanks.  I actually solved the problem another way.  Basically 
images need to be registered.  So, in the product's __init__
method, I added:

        context.registerClass(
            Navigator.Navigator,
            constructors = Navigator.constructors,
            icon='www/nav.gif'
        )

        registerIcon('redarrow.gif')
        registerIcon('spacer14x12.gif')

where the registerIcon() method is local and defined 

def registerIcon(filename, idreplacer={}):
    # A helper function that takes an image filename (assumed
    # to live in a 'www' subdirectory of this package). It 
    # creates an ImageFile instance and adds it as an attribute
    # of misc_.MyPackage of the zope application object (note
    # that misc_.MyPackage has already been created by the product
    # initialization machinery by the time registerIcon is called).
    objectid = filename
    for k,v in idreplacer.items():
        objectid = objectid.replace(k,v)
    setattr(OFS.misc_.misc_.Navigator,
            objectid,
            App.ImageFile.ImageFile('www/%s' % filename, globals())
            )

I found similar code in a number of products.  This particular code came 
from the IssueTrackerProduct.

The image, when all this is said and done, are referenced from the
Product's dtml as, for example, 

     <img src="misc_/Navigator/redarrow.gif" alt="=>"> 

On Fri, 14 Feb 2003, Ulla Theiss wrote:
...
I have solved this task in the following way:
1. The image is in 
${PRODUCT_PATH}/images/first.gif
2. In the product-code:
class myProduct(....):
    first_icon = ImageFile('images' + sep + 'first.gif', globals())
3. In the DTML-Code
  <img src="first_icon" border="0" alt="First Page">
Of course, this works only for static images. For dynamically created
ones, I have a problem, too.
I hope this may help you a little bit,
Dennis Allison schrieb:
...
I have a product which needs to reference some icons which are part of the
product.  Following the usual structure, the icons are www sub-directory of
the product.  The dtml that wants to reference the image is in the dtml
sub-directory.  What's the reference mechanism?
<img src="../www/image.png">
in the dtml code does not resolve to the image.  Nor doe the equivalent <dtml-var ...>
formulation.  What should the reference be?