From f73f8916c0da0c30bf372c11fe90d67875e95c60 Mon Sep 17 00:00:00 2001
From: chrox <chrox.huang@gmail.com>
Date: Sun, 4 Oct 2015 00:36:16 +0800
Subject: [PATCH] fix #1569 use fit to page zoom cover image even in reflow
 mode

---
 frontend/document/koptinterface.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/frontend/document/koptinterface.lua b/frontend/document/koptinterface.lua
index 316d08e4d..94bc73cdb 100644
--- a/frontend/document/koptinterface.lua
+++ b/frontend/document/koptinterface.lua
@@ -256,7 +256,10 @@ end
 get first page image
 --]]
 function KoptInterface:getCoverPageImage(doc)
-    local tile = self:renderPage(doc, 1, nil, 1, 0, 1, 0)
+    local native_size = Document.getNativePageDimensions(doc, 1)
+    local screen_size = Screen:getSize()
+    local zoom = math.min(screen_size.w / native_size.w, screen_size.h / native_size.h)
+    local tile = Document.renderPage(doc, 1, nil, zoom, 0, 1, 0)
     if tile then
         return tile.bb
     end