Re: [TCLCORE] state of tip 507 simple svg support

On 26/09/2018 09:51, Stefan Sobernig wrote:
>>> Or, guesswork from a Tk ignorant: Is there a way to make image options>>> ready-only?>> It doesn't really make any sort of sense.> Ouch!

Hey, it doesn't make sense for good reasons. :-) The problem is that the 
SVG implementation (as proposed) isn't a feature of the photo image 
itself, but rather of the photo image format handler. Those are only on 
the stack when they're running. (There's no mechanism for listing what 
formats are supported or describing what capabilities/properties those 
handlers have; whether or not there should be, there actually isn't.)

I'm still trying to understand why this should be wedged through photo 
images. If it was its own full image type, it would have a lot more 
options when it comes to rendering and the image handle command would be 
open to customization to provide far more information and whatever other 
operations make sense. Though the SVG implementation should still be 
described via tk::pkgconfig; that's exactly the right place for that 
kind of detail.

Donal.

begin:vcard
fn:Donal K. Fellows
n:Fellows;Donal
org:The University of Manchester;School of Computer Science
adr:;;Oxford Road;Manchester;;M13 9PL;United Kingdom
email;internet:dona...@manchester.ac.uk
version:2.1
end:vcard