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Date: Mon, 27 Jul 2015 17:27:58 -0400
Message-Id: <201507272127.t6RLRwjG019810@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: geda-user AT delorie DOT com
In-reply-to: <mp62qe$c27$1@ger.gmane.org> (message from Kai-Martin Knaak on
	Mon, 27 Jul 2015 22:03:25 +0200)
Subject: Re: [geda-user] bug? in Gerber Export in PCB
References: <55B6674B DOT 9080108 AT buffalo DOT edu> <201507271725 DOT t6RHPkdo007711 AT envy DOT delorie DOT com> <mp62qe$c27$1 AT ger DOT gmane DOT org>
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> > If you can come up with a gui-independent folder chooser, sure.  It
> > has to work under gtk, lesstif, windows, batch, and command line.
> 
> Maybe I am a bit naive. But how is this fundamentally different to the way 
> pcb chooses files on other occasions? E.g. the "Load Layout file" 
> dialogue.

The difference is: the File->Open dialog is triggered by the GUI for
the GUI, so the GUI knows how to do a GUI-specific file chooser.

The exporters do not know what GUI is available, so do not know how to
bring up a GUI-specific file chooser.  Those have to go through the
attributes entry HID call, it's up to the GUI to decide how to ask the
user for values for each attribute.  There's a HID_Path type that can
be used, though, if the GUI does something special with it.

> There s the option "first" though. It makes pcb picks the name of
> the first layer of a group. This tends to work out nicely for my
> layer stacks.

If it works for you, put it in your preferences.  It doesn't work for
everyone.

> Could we tag a layer with an attribute as "non-copper"?

We could, if someone wanted to, and figured out to integrate that flag
into the UI.  Of course, those with the time to do so (few) usually
prefer a more general solution than that.