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272 lines
7.1 KiB
Lua
272 lines
7.1 KiB
Lua
local Geom = require("ui/geometry")
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local CreOptions = require("ui/data/creoptions")
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local Document = require("document/document")
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local Configurable = require("ui/reader/configurable")
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local Font = require("ui/font")
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local Screen = require("ui/screen")
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-- TBD: DrawContext
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local CreDocument = Document:new{
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-- this is defined in kpvcrlib/crengine/crengine/include/lvdocview.h
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SCROLL_VIEW_MODE = 0,
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PAGE_VIEW_MODE = 1,
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_document = false,
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engine_initilized = false,
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line_space_percent = 100,
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default_font = "FreeSerif",
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header_font = "FreeSans",
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fallback_font = "Droid Sans Fallback",
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default_css = "./data/cr3.css",
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options = CreOptions,
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configurable = Configurable,
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}
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-- NuPogodi, 20.05.12: inspect the zipfile content
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function CreDocument.zipContentExt(self, fname)
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local outfile = "./data/zip_content"
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local s = ""
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os.execute("unzip ".."-l \""..fname.."\" > "..outfile)
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local i = 1
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if io.open(outfile,"r") then
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for lines in io.lines(outfile) do
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if i == 4 then s = lines break else i = i + 1 end
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end
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end
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-- return the extention
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return string.lower(string.match(s, ".+%.([^.]+)"))
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end
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function CreDocument:engineInit()
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if not engine_initilized then
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-- initialize cache
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cre.initCache(1024*1024*64)
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-- we need to initialize the CRE font list
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local fonts = Font:getFontList()
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for _k, _v in ipairs(fonts) do
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if _v ~= "Dingbats.cff" and _v ~= "StandardSymL.cff" then
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local ok, err = pcall(cre.registerFont, Font.fontdir..'/'.._v)
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if not ok then
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DEBUG(err)
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end
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end
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end
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local default_font = G_reader_settings:readSetting("cre_font")
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if default_font then
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self.default_font = default_font
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end
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local header_font = G_reader_settings:readSetting("header_font")
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if header_font then
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self.header_font = header_font
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end
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engine_initilized = true
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end
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end
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function CreDocument:init()
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self:engineInit()
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self.configurable:loadDefaults(self.options)
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local ok
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local file_type = string.lower(string.match(self.file, ".+%.([^.]+)"))
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if file_type == "zip" then
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-- NuPogodi, 20.05.12: read the content of zip-file
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-- and return extention of the 1st file
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file_type = self:zipContentExt(self.file)
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end
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-- these two format use the same css file
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if file_type == "html" then
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file_type = "htm"
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end
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-- if native css-file doesn't exist, one needs to use default cr3.css
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if not io.open("./data/"..file_type..".css") then
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file_type = "cr3"
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end
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self.default_css = "./data/"..file_type..".css"
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-- @TODO check the default view_mode to a global user configurable
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-- variable 22.12 2012 (houqp)
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ok, self._document = pcall(cre.newDocView,
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Screen:getWidth(), Screen:getHeight(), self.PAGE_VIEW_MODE
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)
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if not ok then
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self.error_message = self.doc -- will contain error message
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return
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end
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-- adjust font sizes according to screen dpi
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self._document:adjustFontSizes(Screen:getDPI())
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-- set fallback font face
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self._document:setStringProperty("crengine.font.fallback.face", self.fallback_font)
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self.is_open = true
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self.info.has_pages = false
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self:_readMetadata()
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self.info.configurable = true
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end
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function CreDocument:loadDocument()
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self._document:loadDocument(self.file)
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if not self.info.has_pages then
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self.info.doc_height = self._document:getFullHeight()
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end
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end
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function CreDocument:close()
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self._document:saveDefaults()
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Document.close(self)
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end
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function CreDocument:drawCurrentView(target, x, y, rect, pos)
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tile_bb = Blitbuffer.new(rect.w, rect.h)
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self._document:drawCurrentPage(tile_bb)
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target:blitFrom(tile_bb, x, y, 0, 0, rect.w, rect.h)
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end
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function CreDocument:drawCurrentViewByPos(target, x, y, rect, pos)
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self._document:gotoPos(pos)
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self:drawCurrentView(target, x, y, rect)
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end
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function CreDocument:drawCurrentViewByPage(target, x, y, rect, page)
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self._document:gotoPage(page)
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self:drawCurrentView(target, x, y, rect)
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end
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function CreDocument:hintPage(pageno, zoom, rotation)
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end
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function CreDocument:drawPage(target, x, y, rect, pageno, zoom, rotation)
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end
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function CreDocument:renderPage(pageno, rect, zoom, rotation)
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end
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function CreDocument:gotoXPointer(xpointer)
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self._document:gotoXPointer(xpointer)
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end
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function CreDocument:getXPointer()
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return self._document:getXPointer()
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end
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function CreDocument:getPosFromXPointer(xp)
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return self._document:getPosFromXPointer(xp)
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end
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function CreDocument:getPageFromXPointer(xp)
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return self._document:getPageFromXPointer(xp)
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end
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function CreDocument:getFontFace()
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return self._document:getFontFace()
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end
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function CreDocument:getCurrentPos()
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return self._document:getCurrentPos()
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end
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function Document:gotoPos(pos)
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self._document:gotoPos(pos)
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end
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function CreDocument:gotoPage(page)
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self._document:gotoPage(page)
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end
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function CreDocument:getCurrentPage()
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return self._document:getCurrentPage()
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end
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function CreDocument:setFontFace(new_font_face)
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if new_font_face then
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self._document:setFontFace(new_font_face)
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end
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end
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function CreDocument:getFontSize()
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return self._document:getFontSize()
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end
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function CreDocument:setFontSize(new_font_size)
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if new_font_size then
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self._document:setFontSize(new_font_size)
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end
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end
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function CreDocument:setViewMode(new_mode)
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if new_mode then
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if new_mode == "scroll" then
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self._document:setViewMode(self.SCROLL_VIEW_MODE)
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else
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self._document:setViewMode(self.PAGE_VIEW_MODE)
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end
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end
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end
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function CreDocument:setHeaderFont(new_font)
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if new_font then
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self._document:setHeaderFont(new_font)
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end
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end
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function CreDocument:zoomFont(delta)
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self._document:zoomFont(delta)
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end
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function CreDocument:setInterlineSpacePercent(percent)
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self._document:setDefaultInterlineSpace(percent)
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end
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function CreDocument:toggleFontBolder()
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self._document:toggleFontBolder()
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end
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function CreDocument:setGammaIndex(index)
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cre.setGammaIndex(index)
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end
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function CreDocument:setStyleSheet(new_css)
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self._document:setStyleSheet(new_css)
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end
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function CreDocument:setEmbeddedStyleSheet(toggle)
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self._document:setEmbeddedStyleSheet(toggle)
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end
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function CreDocument:setPageMargins(left, top, right, bottom)
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self._document:setPageMargins(left, top, right, bottom)
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self._document:setIntProperty("crengine.page.margin.left", left)
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self._document:setIntProperty("crengine.page.margin.top", top)
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self._document:setIntProperty("crengine.page.margin.right", right)
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self._document:setIntProperty("crengine.page.margin.bottom", bottom)
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end
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function CreDocument:setVisiblePageCount(new_count)
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self._document:setVisiblePageCount(new_count)
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end
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function CreDocument:register(registry)
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registry:addProvider("txt", "application/txt", self)
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registry:addProvider("epub", "application/epub", self)
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registry:addProvider("html", "application/html", self)
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registry:addProvider("htm", "application/htm", self)
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registry:addProvider("zip", "application/zip", self)
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registry:addProvider("rtf", "application/rtf", self)
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registry:addProvider("mobi", "application/mobi", self)
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registry:addProvider("prc", "application/prc", self)
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registry:addProvider("azw", "application/azw", self)
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registry:addProvider("chm", "application/chm", self)
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registry:addProvider("pdb", "application/pdb", self)
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registry:addProvider("doc", "application/doc", self)
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registry:addProvider("tcr", "application/tcr", self)
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end
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return CreDocument
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