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41 lines
1.0 KiB
Lua
41 lines
1.0 KiB
Lua
require "cache"
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require "ui/geometry"
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DjvuDocument = Document:new{
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_document = false,
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-- libdjvulibre manages its own additional cache, default value is hard written in c module.
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djvulibre_cache_size = nil,
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dc_null = DrawContext.new()
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}
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function DjvuDocument:init()
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local ok
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ok, self._document = pcall(djvu.openDocument, self.file, self.djvulibre_cache_size)
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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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self.is_open = true
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self.info.has_pages = true
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self:_readMetadata()
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end
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function DjvuDocument:getUsedBBox(pageno)
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-- djvu does not support usedbbox, so fake it.
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local used = {}
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used.x, used.y, used.w, used.h = 0.01, 0.01, -0.01, -0.01
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return used
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end
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function DjvuDocument:invertTextYAxel(pageno, text_table)
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local _, height = self.doc:getOriginalPageSize(pageno)
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for _,text in pairs(text_table) do
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for _,line in ipairs(text) do
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line.y0, line.y1 = (height - line.y1), (height - line.y0)
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end
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end
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return text_table
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end
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DocumentRegistry:addProvider("djvu", "application/djvu", DjvuDocument)
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