mirror of
https://github.com/koreader/koreader.git
synced 2025-08-10 00:52:38 +00:00
3438d6749d
* add _isEntireLineInScreenHeightRange() method For better page view navigation when highlighting or moving cursor. * bug fix in _isWordInScreenRange() method * add _nextGap(), _prevGap(), _gapInNextLine() and _gapInPrevLine() methods, so now key event handling code in cursor moving mode only focuses on drawing, calculation task is passed to these four methods.
76 lines
2.2 KiB
Lua
76 lines
2.2 KiB
Lua
require "unireader"
|
|
|
|
DJVUReader = UniReader:new{}
|
|
|
|
-- open a DJVU file and its settings store
|
|
-- DJVU does not support password yet
|
|
function DJVUReader:open(filename)
|
|
local ok
|
|
ok, self.doc = pcall(djvu.openDocument, filename, self.cache_document_size)
|
|
if not ok then
|
|
return ok, self.doc -- this will be the error message instead
|
|
end
|
|
return ok
|
|
end
|
|
|
|
function DJVUReader:init()
|
|
self:addAllCommands()
|
|
self:adjustDjvuReaderCommand()
|
|
end
|
|
|
|
function DJVUReader:adjustDjvuReaderCommand()
|
|
self.commands:del(KEY_J, MOD_SHIFT, "J")
|
|
self.commands:del(KEY_K, MOD_SHIFT, "K")
|
|
end
|
|
|
|
|
|
----------------------------------------------------
|
|
-- highlight support
|
|
----------------------------------------------------
|
|
function DJVUReader:getText(pageno)
|
|
return self.doc:getPageText(pageno)
|
|
end
|
|
|
|
----------------------------------------------------
|
|
-- In djvulibre library, some coordinates starts from
|
|
-- lower left conner, i.e. y is upside down in kpv's
|
|
-- coordinate. So y0 should be taken with special care.
|
|
----------------------------------------------------
|
|
function DJVUReader:zoomedRectCoordTransform(x0, y0, x1, y1)
|
|
return
|
|
x0 * self.globalzoom,
|
|
self.cur_full_height - (y1 * self.globalzoom),
|
|
(x1 - x0) * self.globalzoom,
|
|
(y1 - y0) * self.globalzoom
|
|
end
|
|
|
|
-- y axel in djvulibre starts from bottom
|
|
function DJVUReader:_isEntireWordInScreenHeightRange(w)
|
|
return (w ~= nil) and
|
|
(self.cur_full_height - (w.y1 * self.globalzoom) >=
|
|
-self.offset_y) and
|
|
(self.cur_full_height - (w.y0 * self.globalzoom) <=
|
|
-self.offset_y + G_height)
|
|
end
|
|
|
|
-- y axel in djvulibre starts from bottom
|
|
function DJVUReader:_isEntireLineInScreenHeightRange(l)
|
|
return (l ~= nil) and
|
|
(self.cur_full_height - (l.y1 * self.globalzoom) >=
|
|
-self.offset_y) and
|
|
(self.cur_full_height - (l.y0 * self.globalzoom) <=
|
|
-self.offset_y + G_height)
|
|
end
|
|
|
|
-- y axel in djvulibre starts from bottom
|
|
function DJVUReader:_isWordInScreenRange(w)
|
|
return (w ~= nil) and
|
|
(self.cur_full_height - (w.y0 * self.globalzoom) >= -self.offset_y
|
|
or self.cur_full_height - (w.y1 * self.globalzoom) <= -self.offset_y + G_height)
|
|
and
|
|
(w.x1 * self.globalzoom >= -self.offset_x
|
|
or w.x0 * self.globalzoom <= -self.offset_x + G_width)
|
|
end
|
|
|
|
|