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Mail Archives: geda-user/2016/02/27/17:22:08

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Date: Sat, 27 Feb 2016 13:21:05 -0900
Message-ID: <CAC4O8c898gX9Bqr=o1dt=SiOr7hwVOmHojJTPp-2-cibW0DowQ@mail.gmail.com>
Subject: Re: [geda-user] Re: re-instituting GetXY()
From: "Britton Kerin (britton DOT kerin AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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On Fri, Feb 26, 2016 at 11:10 AM, DJ Delorie <dj AT delorie DOT com> wrote:
>
> In ./hid/common/actions.c we see:
>
>   if (a->need_coord_msg)
>     gui->get_coords (_(a->need_coord_msg), &x, &y);
>
> This is set from these:
>
>   {"GetXY", "", GetXY,
>    getxy_help, getxy_syntax},
>
>   {"GetXY", "", GetXY, getxy_help, getxy_syntax},
>
> Note the "" which both triggers the get_coords but provides no
> message.
>
> Perhaps it would be better to pass NULL to those and change the two
> GetXY() implementations to be like this (caveat error checks et al):
>
> static int
> GetXY (int argc, char **argv, Coord x, Coord y)
> {
>   gui->get_coords(argv[0], &x, &y);
>   return 0;
> }

Seems to work.  So I guess doing things this way the &x and &y args aren't
used for anything, and the rest of the actions in the sequence know to get
the coordinates from a global somewhere?

It looks like there are only a handful of actions that set need_coord_msg
non-NULL.  Is there any reason to have both mechanisms?  I haven't run into
anything that seems to need multiple clicks.

Britton

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