From 3565578196c001d5a3099d3fa9a754e4c2832403 Mon Sep 17 00:00:00 2001
From: chrox <chrox.huang@gmail.com>
Date: Thu, 29 May 2014 19:13:54 +0800
Subject: [PATCH] fix auto bbox calculation in in top-to-bottom writing
 direction

---
 ffi/koptcontext.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ffi/koptcontext.lua b/ffi/koptcontext.lua
index cc9c69605..00c02faed 100644
--- a/ffi/koptcontext.lua
+++ b/ffi/koptcontext.lua
@@ -216,6 +216,8 @@ function KOPTContext_mt.__index:getTOCRWord(bmp, x, y, w, h, datadir, lang, ocr_
 end
 
 function KOPTContext_mt.__index:getAutoBBox()
+    -- fall back to default writing direction when detecting bbox
+    self:setWritingDirection(0)
     k2pdfopt.k2pdfopt_crop_bmp(self)
     local x0 = self.bbox.x0/self.zoom
     local y0 = self.bbox.y0/self.zoom