Re: [Zope] 'websafe' colours

2000-10-03 Thread Magnus Alvestad

[Curtis Maloney]

| As I understand it, it's due to system palettes.  On low colour
| machines (256 or even 16colour) some colours are reserved for the
| system GUI so that you can match the 'theme', leaving you with fewer
| than the full capacity of the display you are using.

Actually the problem with many colours is that there is slight
difference between how they are shown in for example BGCOLOR and in a
gif.  There was an article about this in the online version of Wired.

-Magnus


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Re: [Zope] Dynamically render DTML?

2000-09-18 Thread Magnus Alvestad

As a follow-up, is it possible to evaluate DTML that is returned from
an SQL Query?

-Magnus

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Re: [Zope] Zope and the GPL poison pill

2000-09-12 Thread Magnus Alvestad

[Danny William Adair]

| Now Nils and Oleg are giving me the creeps.

There are several issues here.

First, it is not obvious that including one GPL'ed product in a zope
site and then distributing that site obliges you to distribute any
further source code.  Only if you (embrace and) extend that specific
product would the GPL hit you.

Second, even if it does, remember that a zope site almost always
includes source anyway.  I guess the exception would be if you have
binary-only python files or linked pre-compiled c-code or something
like that.  But it would be very hard to claim that those parts were
'infected' by a product on your site being GPL'ed.

Third, you are only obligated to distribute source to parties you have
already distributed the binary version to.  I can't really see a
customer buying a zope site from you and not expecting 'source'
anyway.

-Magnus (I'm not a lawyer)



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Re: [Zope] Zope and the GPL poison pill

2000-09-12 Thread Magnus Alvestad

Just to state my position, I have worked as a professional commercial
software developer since 1994.  I think the GPL is appropriate for
work I do outside customer contracts.

[Nils Kassube]

| The problem is not that a client who paid for custom development
| will get the source. It's the fact that you have to release the
| source code of an enhanced GPL'ed component (and possibly stuff
| built with it) for everyone else, too. 

(complete version at http://www.gnu.org/copyleft/gpl.html)

-- from the GPL 

3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

 a) Accompany it with the complete corresponding machine-readable
 source code, which must be distributed under the terms of
 Sections 1 and 2 above on a medium customarily used for software
 interchange; or,

 b) Accompany it with a written offer, valid for at least three
 years, to give any third party, for a charge no more than your
 cost of physically performing source distribution, a complete
 machine-readable copy of the corresponding source code, to be
 distributed under the terms of Sections 1 and 2 above on a medium
 customarily used for software interchange; or,

--

These are the most relevant sections.  It's pretty clear that you are
only obligated to distribute source to the parties you've distributed
object code / executable form to.

| Another issue is that in a complex object oriented environment
| like Zope it's difficult to determine if you only used a GPL'ed 
| component or "embraced and extended" it. 

Actually the embrace and extension was a silly Microsoft-joke, the
definition in the license text is more verbose:

.. a "work based on the Program" means either the Program or any
derivative work under copyright law: that is to say, a work containing
the Program or a portion of it, either verbatim or with modifications
and/or translated into another language. ..

I don't think a zope site could be defined as a 'work'.

-Magnus


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