From fbdd5224b29e56ad2a72a55624bc4737c8163b69 Mon Sep 17 00:00:00 2001
From: Jinhao <cnjinhao@hotmail.com>
Date: Tue, 23 Aug 2016 08:01:04 +0800
Subject: [PATCH] fix a cast

---
 source/paint/graphics.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/paint/graphics.cpp b/source/paint/graphics.cpp
index 684a8ca2..aa606f4e 100644
--- a/source/paint/graphics.cpp
+++ b/source/paint/graphics.cpp
@@ -413,7 +413,7 @@ namespace paint
 
 		nana::size	graphics::text_extent_size(const std::wstring& text)	const
 		{
-			return text_extent_size(text.c_str(), text.length());
+			return text_extent_size(text.c_str(), static_cast<unsigned>(text.length()));
 		}
 
 		nana::size	graphics::text_extent_size(const wchar_t* str, std::size_t len)	const