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koreader/frontend/document/credocument.lua

80 lines
2.1 KiB
Lua

require "cache"
require "ui/geometry"
CreDocument = Document:new{
_document = false,
line_space_percent = 100,
--dc_null = DrawContext.new()
}
-- NuPogodi, 20.05.12: inspect the zipfile content
function CreDocument:zipContentExt(fname)
local outfile = "./data/zip_content"
local s = ""
os.execute("unzip ".."-l \""..fname.."\" > "..outfile)
local i = 1
if io.open(outfile,"r") then
for lines in io.lines(outfile) do
if i == 4 then s = lines break else i = i + 1 end
end
end
-- return the extention
return string.lower(string.match(s, ".+%.([^.]+)"))
end
function CreDocument:init()
-- we need to initialize the CRE font list
local fonts = Font:getFontList()
for _k, _v in ipairs(fonts) do
local ok, err = pcall(cre.registerFont, Font.fontdir..'/'.._v)
if not ok then
DEBUG(err)
end
end
--local default_font = G_reader_settings:readSetting("cre_font")
--if default_font then
--self.default_font = default_font
--end
local ok
local file_type = string.lower(string.match(self.file, ".+%.([^.]+)"))
if file_type == "zip" then
-- NuPogodi, 20.05.12: read the content of zip-file
-- and return extention of the 1st file
file_type = self:zipContentExt(filename)
end
-- these two format use the same css file
if file_type == "html" then
file_type = "htm"
end
-- if native css-file doesn't exist, one needs to use default cr3.css
if not io.open("./data/"..file_type..".css") then
file_type = "cr3"
end
local style_sheet = "./data/"..file_type..".css"
ok, self._document = pcall(cre.openDocument, self.file, style_sheet,
G_width, G_height)
if not ok then
self.error_message = self.doc -- will contain error message
return
end
self.is_open = true
self.info.has_pages = false
self:_readMetadata()
self._document:setDefaultInterlineSpace(self.line_space_percent)
end
function CreDocument:hintPage(pageno, zoom, rotation)
end
function CreDocument:drawPage(target, x, y, rect, pageno, zoom, rotation)
end
function CreDocument:renderPage(pageno, rect, zoom, rotation)
end
DocumentRegistry:addProvider("txt", "application/txt", CreDocument)