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mirror of https://github.com/koreader/koreader synced 2024-11-18 03:25:46 +00:00
koreader/frontend/ui/widget/radiomark.lua
NiLuJe fadee1f5dc
Clarify our OOP semantics across the codebase (#9586)
Basically:

* Use `extend` for class definitions
* Use `new` for object instantiations

That includes some minor code cleanups along the way:

* Updated `Widget`'s docs to make the semantics clearer.
* Removed `should_restrict_JIT` (it's been dead code since https://github.com/koreader/android-luajit-launcher/pull/283)
* Minor refactoring of LuaSettings/LuaData/LuaDefaults/DocSettings to behave (mostly, they are instantiated via `open` instead of `new`) like everything else and handle inheritance properly (i.e., DocSettings is now a proper LuaSettings subclass).
* Default to `WidgetContainer` instead of `InputContainer` for stuff that doesn't actually setup key/gesture events.
* Ditto for explicit `*Listener` only classes, make sure they're based on `EventListener` instead of something uselessly fancier.
* Unless absolutely necessary, do not store references in class objects, ever; only values. Instead, always store references in instances, to avoid both sneaky inheritance issues, and sneaky GC pinning of stale references.
  * ReaderUI: Fix one such issue with its `active_widgets` array, with critical implications, as it essentially pinned *all* of ReaderUI's modules, including their reference to the `Document` instance (i.e., that was a big-ass leak).
* Terminal: Make sure the shell is killed on plugin teardown.
* InputText: Fix Home/End/Del physical keys to behave sensibly.
* InputContainer/WidgetContainer: If necessary, compute self.dimen at paintTo time (previously, only InputContainers did, which might have had something to do with random widgets unconcerned about input using it as a baseclass instead of WidgetContainer...).
* OverlapGroup: Compute self.dimen at *init* time, because for some reason it needs to do that, but do it directly in OverlapGroup instead of going through a weird WidgetContainer method that it was the sole user of.
* ReaderCropping: Under no circumstances should a Document instance member (here, self.bbox) risk being `nil`ed!
* Kobo: Minor code cleanups.
2022-10-06 02:14:48 +02:00

33 lines
1.1 KiB
Lua

local BD = require("ui/bidi")
local Blitbuffer = require("ffi/blitbuffer")
local Font = require("ui/font")
local TextWidget = require("ui/widget/textwidget")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local RadioMark = WidgetContainer:extend{
checkable = true, -- empty space when false
checked = false,
enabled = true,
face = Font:getFace("smallinfofont"),
baseline = 0,
_mirroredUI = BD.mirroredUILayout(),
-- round radio mark looks a little bit higher than the button/menu text
-- default vertical down shift ratio (to the text height) looks good in touchmenu
v_shift_ratio = 0.03,
}
function RadioMark:init()
local widget = TextWidget:new{
text = self.checkable and (self.checked and "" or "") or "",
face = self.face,
fgcolor = self.enabled and Blitbuffer.COLOR_BLACK or Blitbuffer.COLOR_DARK_GRAY,
para_direction_rtl = self._mirroredUI,
}
self.baseline = widget:getBaseline()
widget.forced_baseline = self.baseline + math.floor(widget:getSize().h * self.v_shift_ratio)
self[1] = widget
self.dimen = widget:getSize()
end
return RadioMark