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CoverImage plugin: allow saving covers as JPG (#6924)

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This commit is contained in:
zwim
2020-12-05 23:54:06 +01:00
committed by GitHub
parent 8984f1bfd6
commit 0a6ef6e351
1 changed files with 28 additions and 3 deletions
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31
plugins/coverimage.koplugin/main.lua
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@@ -44,9 +44,10 @@ local CoverImage = WidgetContainer:new{
}
function CoverImage:init()
self.cover_image_path = G_reader_settings:readSetting("cover_image_path") or "cover.png"
self.cover_image_path = G_reader_settings:readSetting("cover_image_path") or "cover.jpg"
self.cover_image_format = G_reader_settings:readSetting("cover_image_format") or "auto"
self.cover_image_extension = getExtension(self.cover_image_path)
self.cover_image_quality = G_reader_settings:readSetting("cover_image_quality") or 75
self.cover_image_background = G_reader_settings:readSetting("cover_image_background") or "black"
self.cover_image_fallback_path = G_reader_settings:readSetting("cover_image_fallback_path") or "cover_fallback.png"
self.enabled = G_reader_settings:isTrue("cover_image_enabled")
@@ -88,7 +89,12 @@ function CoverImage:createCoverImage(doc_settings)
if self.cover_image_background == "none" or scale_factor == 1 then
local act_format = self.cover_image_format == "auto" and self.cover_image_extension or self.cover_image_format
cover_image:writeToFile(self.cover_image_path, act_format)
if not cover_image:writeToFile(self.cover_image_path, act_format, self.cover_image_quality) then
UIManager:show(InfoMessage:new{
text = T(_"Error writing file\n") .. self.cover_image_path,
show_icon = true,
})
end
cover_image:free()
return
end
@@ -113,7 +119,12 @@ function CoverImage:createCoverImage(doc_settings)
cover_image:free()
local act_format = self.cover_image_format == "auto" and self.cover_image_extension or self.cover_image_format
image:writeToFile(self.cover_image_path, act_format)
if not image:writeToFile(self.cover_image_path, act_format, self.cover_image_quality) then
UIManager:show(InfoMessage:new{
text = T(_"Error writing file\n") .. self.cover_image_path,
show_icon = true,
})
end
image:free()
logger.dbg("CoverImage: image written to " .. self.cover_image_path)
@@ -320,6 +331,20 @@ function CoverImage:addToMainMenu(menu_items)
end
end,
},
{
text = _("JPG file format"),
checked_func = function()
return self.cover_image_format == "jpg"
end,
callback = function()
local old_cover_image_format = self.cover_image_format
self.cover_image_format = "jpg"
G_reader_settings:saveSetting("cover_image_format", self.cover_image_format)
if self.enabled and old_cover_image_format ~= self.cover_image_format then
self:createCoverImage(self.ui.doc_settings)
end
end,
},
{
text = _("PNG file format"),
checked_func = function()