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Date:	Sun, 21 Feb 2016 16:01:20 +0100 (CET)
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To:	geda-user AT delorie DOT com
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From:	gedau AT igor2 DOT repo DOT hu
Subject:	[geda-user] libstroke revival
Message-ID:	<alpine.DEB.2.00.1602211530250.7885@igor2priv>
User-Agent:	Alpine 2.00 (DEB 1167 2008-08-23)
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Reply-To:	geda-user AT delorie DOT com

Hi all,

during my pcb-rnd cleanup I decided to give libstroke a try. I found the 
code slightly bitrotten and defunct. Some of the problems most probably 
present in mainline as well:

1. libstroke's record function is not called at all when using the gtk 
hid; it's because ghid_note_event_location() doesn't call 
EventMoveCrosshair() but reproduces it's non-libstroke part locally.

2. the zoom related events that used to call SetZoom() are removed in 
mainline and marked with XXX comments; this is a minor problem as 
the rest of the libstroke features should work.

3. in the lesstif hid the middle button acts as pan and libstroke never 
gets the events (mid_stroke stays false)

4. libstroke type bug: libstroke uses type float for some internal 
calculations in the record call while the api accepts int; pcb sends it 
too large coordinates even on small boards; this makes libstroke fall in 
an infinite loop (!); can be fixed by shifting down the coordinates in the 
call to stroke_record(); I used >>16


My conclusion is that I am moving libstroke support into a plugin and 
it would partially work with the gtk hid.

Regards,

Igor2

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