From: Cheng Renquan <crquan@gmail.com>
Date: Thu, 1 Sep 2011 17:52:21 +0000 (-0700)
Subject: scripts/kconfig/nconf: fix editing long strings
X-Git-Tag: v3.2-rc1~27^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e631a57a19e103c3bb59495b236634ec62e2a850;p=pandora-kernel.git

scripts/kconfig/nconf: fix editing long strings

The original dialog_inputbox doesn't work with longer than prompt_width
strings, here fixed it in this way:
1) add variable cursor_form_win to record cursor of form_win,
   keep its value always between [0, prompt_width-1];
   reuse the original cursor_position as cursor of the string result,
   use (cursor_position-cursor_form_win) as begin offset to show part of
   the string in form_win;

Signed-off-by: Cheng Renquan <crquan@gmail.com>
Cc: Arnaud Lacombe <lacombar@gmail.com>
Cc: Nir Tzachar <nir.tzachar@gmail.com>
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