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add getCoverPageImage api for CreDocument

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chrox
2014-08-22 18:24:49 +08:00
parent baae364571
commit 7048ca971b
2 changed files with 18 additions and 0 deletions
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12
frontend/document/credocument.lua
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@@ -3,11 +3,13 @@ local Document = require("document/document")
local Configurable = require("configurable")
local Blitbuffer = require("ffi/blitbuffer")
local lfs = require("libs/libkoreader-lfs")
local Image = require("ffi/mupdfimg")
local Geom = require("ui/geometry")
local Device = require("ui/device")
local Screen = require("ui/screen")
local Font = require("ui/font")
local DEBUG = require("dbg")
local ffi = require("ffi")
local CreDocument = Document:new{
-- this is defined in kpvcrlib/crengine/crengine/include/lvdocview.h
@@ -130,6 +132,16 @@ function CreDocument:getPageCount()
return self._document:getPages()
end
function CreDocument:getCoverPageImage()
self._document:loadDocument(self.file)
local data, size = self._document:getCoverPageImageData()
if data and size then
local image = Image:fromData(data, size)
ffi.C.free(data)
return image
end
end
function CreDocument:getWordFromPosition(pos)
local word_box = self._document:getWordFromPosition(pos.x, pos.y)
DEBUG("CreDocument: get word box", word_box)