renun/koreader
1
0
Fork 0
mirror of https://github.com/koreader/koreader.git synced 2025-08-10 00:52:38 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Re-implement the interface for setting DjVu page rendering mode as a menu.

Browse Source 
Thanks to NuPogodi for showing how to do this.
This commit is contained in:
Tigran Aivazian
2012-08-29 11:39:17 +01:00
parent 3fd33805c5
commit b0b0b85ca1
1 changed files with 24 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
djvureader.lua
View File

@@ -24,40 +24,34 @@ function DJVUReader:adjustDjvuReaderCommand()
self.commands:add(KEY_R, nil, "R",
"colour/b&w/colouronly/maskonly/backg/foreg",
function(self)
self:cycle_render_mode()
self:select_render_mode()
end)
end
-- cycle through all rendering modes supported by djvulibre:
-- 0 (color page or stencil)
-- 1 (stencil or color page)
-- 2 (color page or fail)
-- 3 (stencil or fail)
-- 4 (color background layer)
-- 5 (color foreground layer)
-- Note that if the values in the definition of ddjvu_render_mode_t in djvulibre/libdjvu/ddjvuapi.h change,
-- then we should update our values here also. This is a bit risky, but these values never change, so it should be ok :)
function DJVUReader:cycle_render_mode()
self.render_mode = (self.render_mode + 1)%6
Debug("cycle_render_mode(), render_mode=", self.render_mode)
self:clearCache()
self.doc:cleanCache()
local render_mode_name = "UNKNOWN"
if self.render_mode == 0 then
render_mode_name = "COLOUR"
elseif self.render_mode == 1 then
render_mode_name = "BLACK & WHITE"
elseif self.render_mode == 2 then
render_mode_name = "COLOUR ONLY"
elseif self.render_mode == 3 then
render_mode_name = "MASK ONLY"
elseif self.render_mode == 4 then
render_mode_name = "COLOUR BACKGROUND"
elseif self.render_mode == 5 then
render_mode_name = "COLOUR FOREGROUND"
-- select the rendering mode from those supported by djvulibre.
-- Note that if the values in the definition of ddjvu_render_mode_t in djvulibre/libdjvu/ddjvuapi.h change,
-- then we should update our values here also. This is a bit risky, but these values never change, so it should be ok :)
function DJVUReader:select_render_mode()
local mode_menu = SelectMenu:new{
menu_title = "Select DjVu page rendering mode",
item_array = {
"COLOUR (works for both colour and b&w pages)", -- 0 (colour page or stencil)
"BLACK & WHITE (for b&w pages only, much faster)", -- 1 (stencil or colour page)
"COLOUR ONLY (slightly faster than COLOUR)", -- 2 (colour page or fail)
"MASK ONLY", -- 3 (stencil or fail)
"COLOUR BACKGROUND (show only background)", -- 4 (colour background layer)
"COLOUR FOREGROUND (show only foreground)" -- 5 (colour foreground layer)
},
current_entry = self.render_mode,
}
local mode = mode_menu:choose(0, fb.bb:getHeight())
if mode then
self.render_mode = mode - 1
Debug("select_render_mode(), render_mode=", self.render_mode)
self:clearCache()
self.doc:cleanCache()
self:redrawCurrentPage()
end
showInfoMsgWithDelay("("..self.render_mode..") "..render_mode_name, 1000, 1)
self:redrawCurrentPage()
end
----------------------------------------------------