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fix performance issue of screensaver on Kobo

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now loadDocument will not render the document and getCoverPageImage will
be much faster.
This commit is contained in:
chrox
2014-08-28 13:22:31 +08:00
parent 288a49252e
commit fd9e3d57f3
3 changed files with 13 additions and 7 deletions
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14
frontend/document/credocument.lua
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@@ -108,20 +108,25 @@ function CreDocument:init()
-- set fallback font face
self._document:setStringProperty("crengine.font.fallback.face", self.fallback_font)
-- set visible page count in landscape
if math.max(Screen:getWidth(), Screen:getHeight()) / Screen:getDPI()
< DCREREADER_TWO_PAGE_THRESHOLD then
self:setVisiblePageCount(1)
end
self.is_open = true
self.info.has_pages = false
self:_readMetadata()
self.info.configurable = true
end
function CreDocument:loadDocument()
function CreDocument:render()
-- load document before rendering
self._document:loadDocument(self.file)
self._document:renderDocument()
if not self.info.has_pages then
self.info.doc_height = self._document:getFullHeight()
end
if math.max(Screen:getWidth(),Screen:getHeight())/Screen:getDPI() < DCREREADER_TWO_PAGE_THRESHOLD then
self:setVisiblePageCount(1)
end
end
function CreDocument:close()
@@ -133,6 +138,7 @@ function CreDocument:getPageCount()
end
function CreDocument:getCoverPageImage()
-- don't need to render document in order to get cover image
self._document:loadDocument(self.file)
local data, size = self._document:getCoverPageImageData()
if data and size then