You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
--[[--
|
|
|
|
|
CenterContainer centers its content (1 widget) within its own dimensions
|
|
|
|
|
--]]
|
|
|
|
|
|
|
|
|
|
local WidgetContainer = require("ui/widget/container/widgetcontainer")
|
|
|
|
|
|
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.
2 years ago
|
|
|
local CenterContainer = WidgetContainer:extend{}
|
|
|
|
|
|
|
|
|
|
function CenterContainer:paintTo(bb, x, y)
|
|
|
|
|
local content_size = self[1]:getSize()
|
|
|
|
|
|
|
|
|
|
-- check if content is bigger than container
|
|
|
|
|
if self.ignore_if_over == "height" then -- align upper borders
|
|
|
|
|
if self.dimen.h < content_size.h then
|
|
|
|
|
self.ignore = "height"
|
|
|
|
|
end
|
|
|
|
|
elseif self.ignore_if_over == "width" then -- align left borders
|
|
|
|
|
if self.dimen.w < content_size.w then
|
|
|
|
|
self.ignore = "width"
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
local x_pos = x
|
|
|
|
|
local y_pos = y
|
|
|
|
|
if self.ignore ~= "height" then
|
|
|
|
|
y_pos = y + math.floor((self.dimen.h - content_size.h)/2)
|
|
|
|
|
end
|
|
|
|
|
if self.ignore ~= "width" then
|
|
|
|
|
x_pos = x + math.floor((self.dimen.w - content_size.w)/2)
|
|
|
|
|
end
|
|
|
|
|
self[1]:paintTo(bb, x_pos, y_pos)
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
return CenterContainer
|
