export a method so that skins can access image size for a given image_display.

This is used in odt_style to display ImageFields


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@19847 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Image.py

@@ -61,6 +61,13 @@ defaultdisplays = {'nano'      : (25,25),
                    'xlarge'    : (1024,1024)
                   }
 
+def getSizeFromImageDisplay(image_display):
+  """Retuns the size for this image display, or None if this image display name
+  is not known.
+  """
+  return defaultdisplays.get(image_display)
+
+
 default_formats = ['jpg', 'jpeg', 'png', 'gif', 'pnm', 'ppm']
 
 class Image(File, OFSImage):

product/ERP5/__init__.py

@@ -91,6 +91,8 @@ def initialize( context ):
                                                   'Redirect', 'Unauthorized')
   ModuleSecurityInfo('Products.CMFCore.WorkflowCore').declarePublic(
                                                    'WorkflowException')
+  ModuleSecurityInfo('Products.ERP5.Document.Image').declarePublic(
+                                                'getSizeFromImageDisplay')
 
 # backward compatibility names
 XML = None