From: minho.sun <minho.sun@samsung.com>
Date: Wed, 27 Dec 2017 07:55:49 +0000 (+0900)
Subject: [4.0] Check line is empty or not before getting line of character
X-Git-Tag: submit/tizen_4.0/20171228.093240~3^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4c7c8299f18c92e988425389fe7936fc34967dd5;hp=4c7c8299f18c92e988425389fe7936fc34967dd5;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git

[4.0] Check line is empty or not before getting line of character

mLine can be empty Vector if there is no text or place holder in
text-editor / text-field.

So check mLine is empty or not first and if it is empty, return 0u.

Change-Id: I5521366ab8b5c5c682c7d303a24a90fe31abe548
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