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koreader/frontend/document/picdocument.lua
2014-06-16 02:21:49 -04:00

34 lines
791 B
Lua

local Document = require("document/document")
local DrawContext = require("ffi/drawcontext")
local pic = nil
local PicDocument = Document:new{
_document = false,
dc_null = DrawContext.new()
}
function PicDocument:init()
if not pic then pic = require("ffi/pic") end
ok, self._document = pcall(pic.openDocument, self.file)
if not ok then
self.error_message = "failed to open jpeg image"
return
end
self.info.has_pages = true
self.info.configurable = false
self:readMetadata()
end
function PicDocument:readMetadata()
self.info.number_of_pages = 1
end
function PicDocument:register(registry)
registry:addProvider("jpeg", "application/jpeg", self)
registry:addProvider("jpg", "application/jpeg", self)
end
return PicDocument