mirror of https://github.com/koreader/koreader
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.
53 lines
1.5 KiB
Lua
53 lines
1.5 KiB
Lua
--[[--
|
|
An UnderlineContainer is a WidgetContainer that is able to paint
|
|
a line under its child node.
|
|
--]]
|
|
|
|
|
|
local Blitbuffer = require("ffi/blitbuffer")
|
|
local Geom = require("ui/geometry")
|
|
local Size = require("ui/size")
|
|
local WidgetContainer = require("ui/widget/container/widgetcontainer")
|
|
|
|
local UnderlineContainer = WidgetContainer:extend{
|
|
linesize = Size.line.thick,
|
|
padding = Size.padding.tiny,
|
|
-- We default to white to be invisible by default for FocusManager use-cases (only switching to black @ onFocus)
|
|
color = Blitbuffer.COLOR_WHITE,
|
|
vertical_align = "top",
|
|
}
|
|
|
|
function UnderlineContainer:getSize()
|
|
local contentSize = self[1]:getSize()
|
|
return Geom:new{
|
|
w = contentSize.w,
|
|
h = contentSize.h + self.linesize + 2*self.padding
|
|
}
|
|
end
|
|
|
|
function UnderlineContainer:paintTo(bb, x, y)
|
|
local container_size = self:getSize()
|
|
if not self.dimen then
|
|
self.dimen = Geom:new{
|
|
x = x, y = y,
|
|
w = container_size.w,
|
|
h = container_size.h
|
|
}
|
|
else
|
|
self.dimen.x = x
|
|
self.dimen.y = y
|
|
end
|
|
local content_size = self[1]:getSize()
|
|
local p_y = y
|
|
if self.vertical_align == "center" then
|
|
p_y = math.floor((container_size.h - content_size.h) / 2) + y
|
|
elseif self.vertical_align == "bottom" then
|
|
p_y = (container_size.h - content_size.h) + y
|
|
end
|
|
self[1]:paintTo(bb, x, p_y)
|
|
bb:paintRect(x, y + container_size.h - self.linesize,
|
|
container_size.w, self.linesize, self.color)
|
|
end
|
|
|
|
return UnderlineContainer
|