mirror of https://github.com/koreader/koreader
Merge remote-tracking branch 'hwhw/master' into djvu
traycold
12 years ago
commit
eba1c2d5ef
@ -1,70 +1,19 @@
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require "unireader"
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DJVUReader = UniReader:new{}
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DJVUReader = UniReader:new{
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newDC = function()
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print("djvu.newDC")
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return djvu.newDC()
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end,
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}
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function DJVUReader:init()
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self.nulldc = djvu.newDC()
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self.nulldc = self.newDC()
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end
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-- open a DJVU file and its settings store
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-- DJVU does not support password yet
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function DJVUReader:open(filename)
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self.doc = djvu.openDocument(filename)
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if self.doc ~= nil then
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self.settings = DocSettings:open(filename)
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local gamma = self.settings:readsetting("gamma")
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if gamma then
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self.globalgamma = gamma
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end
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return true
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end
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return false
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end
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-- set viewer state according to zoom state
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function DJVUReader:setzoom(page)
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local dc = djvu.newDC()
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local pwidth, pheight = page:getSize(self.nulldc)
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if self.globalzoommode == self.ZOOM_FIT_TO_PAGE then
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self.globalzoom = width / pwidth
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self.offset_x = 0
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self.offset_y = (height - (self.globalzoom * pheight)) / 2
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if height / pheight < self.globalzoom then
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self.globalzoom = height / pheight
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print(width, (self.globalzoom * pwidth))
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self.offset_x = (width - (self.globalzoom * pwidth)) / 2
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self.offset_y = 0
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end
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elseif self.globalzoommode == self.ZOOM_FIT_TO_PAGE_WIDTH then
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self.globalzoom = width / pwidth
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self.offset_x = 0
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self.offset_y = (height - (self.globalzoom * pheight)) / 2
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elseif self.globalzoommode == self.ZOOM_FIT_TO_PAGE_HEIGHT then
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self.globalzoom = height / pheight
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self.offset_x = (width - (self.globalzoom * pwidth)) / 2
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self.offset_y = 0
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end
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dc:setZoom(self.globalzoom)
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-- record globalzoom for manual zoom in/out
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self.globalzoom_orig = self.globalzoom
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dc:setRotate(self.globalrotate);
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dc:setOffset(self.offset_x, self.offset_y)
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self.fullwidth, self.fullheight = page:getSize(dc)
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self.min_offset_x = fb.bb:getWidth() - self.fullwidth
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self.min_offset_y = fb.bb:getHeight() - self.fullheight
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if(self.min_offset_x > 0) then
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self.min_offset_x = 0
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end
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if(self.min_offset_y > 0) then
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self.min_offset_y = 0
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end
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-- set gamma here, we don't have any other good place for this right now:
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if self.globalgamma ~= self.GAMMA_NO_GAMMA then
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print("gamma correction: "..self.globalgamma)
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dc:setGamma(self.globalgamma)
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end
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return dc
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return self:loadSettings(filename)
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end
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@ -1,38 +1,66 @@
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DocSettings = {}
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function DocSettings:open(docfile)
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local new = {}
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new.docdb, errno, errstr = sqlite3.open(docfile..".kpdfview")
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if new.docdb ~= nil then
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new.docdb:exec("CREATE TABLE IF NOT EXISTS settings (key TEXT PRIMARY KEY, value TEXT);")
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new.stmt_readsetting = new.docdb:prepare("SELECT value FROM settings WHERE key = ?;")
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new.stmt_savesetting = new.docdb:prepare("INSERT OR REPLACE INTO settings (key, value) VALUES (?, ?);")
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local new = { file = docfile..".kpdfview.lua", data = {} }
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local ok, stored = pcall(dofile,new.file)
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if ok then
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new.data = stored
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end
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return setmetatable(new, { __index = DocSettings})
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end
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function DocSettings:readsetting(key)
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if self.docdb ~= nil then
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self.stmt_readsetting:reset()
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self.stmt_readsetting:bind_values(key)
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local result = self.stmt_readsetting:step()
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if result == sqlite3.ROW then
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return self.stmt_readsetting:get_value(0)
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return self.data[key]
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end
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function DocSettings:savesetting(key, value)
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self.data[key] = value
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end
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-- simple serialization function, won't do uservalues, functions, loops
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function DocSettings:_serialize(what, outt, indent)
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if type(what) == "table" then
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local didrun = false
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table.insert(outt, "{")
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for k, v in pairs(what) do
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if didrun then
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table.insert(outt, ",")
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end
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table.insert(outt, "\n")
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table.insert(outt, string.rep("\t", indent+1))
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table.insert(outt, "[")
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self:_serialize(k, outt, indent+1)
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table.insert(outt, "] = ")
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self:_serialize(v, outt, indent+1)
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didrun = true
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end
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if didrun then
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table.insert(outt, "\n")
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table.insert(outt, string.rep("\t", indent))
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end
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table.insert(outt, "}")
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elseif type(what) == "string" then
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table.insert(outt, string.format("%q", what))
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elseif type(what) == "number" or type(what) == "boolean" then
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table.insert(outt, tostring(what))
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end
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end
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function DocSettings:savesetting(key, value)
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if self.docdb ~= nil then
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self.stmt_savesetting:reset()
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self.stmt_savesetting:bind_values(key, value)
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self.stmt_savesetting:step()
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function DocSettings:flush()
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-- write a serialized version of the data table
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if not self.file then
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return
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end
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local f_out = io.open(self.file, "w")
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if f_out ~= nil then
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local out = {"-- we can read Lua syntax here!\nreturn "}
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self:_serialize(self.data, out, 0)
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table.insert(out, "\n")
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f_out:write(table.concat(out))
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f_out:close()
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end
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end
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function DocSettings:close()
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if self.docdb ~= nil then
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self.docdb:close()
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self.docdb = nil
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end
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self:flush()
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end
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