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koreader/frontend/ui/widget/checkmark.lua
georgeto cbe7775bc8
CheckMark: Fix on tap toggling of checkmarks in SortWidget (#9941)
The x and y coordinates of SortItemWidget's checkmark widgets were not updated, thus remained at their initial value 0.
Consequently the intersectWith check in SortItemWidget:onTap always evaluated to false, resulting in taps on checkmarks in the sort widget not being recognized.

Co-authored-by: NiLuJe <ninuje@gmail.com>
2022-12-31 01:01:17 +01:00

97 lines
3.1 KiB
Lua

--[[--
Widget that shows a checkmark (`✓`), an empty box (`□`)
or nothing of the same size.
Example:
local CheckMark = require("ui/widget/CheckMark")
local parent_widget = FrameContainer:new{}
table.insert(parent_widget, CheckMark:new{
checkable = false, -- shows nothing when false, defaults to true
checked = function() end, -- whether the box has a checkmark in it
})
UIManager:show(parent_widget)
]]
local BD = require("ui/bidi")
local Blitbuffer = require("ffi/blitbuffer")
local Font = require("ui/font")
local OverlapGroup = require("ui/widget/overlapgroup")
local TextWidget = require("ui/widget/textwidget")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local CheckMark = WidgetContainer:extend{
checkable = true,
checked = false,
enabled = true,
face = Font:getFace("smallinfofont"),
width = 0,
height = 0,
baseline = 0,
}
function CheckMark:init()
-- Adjust these checkmarks if mirroring UI (para_direction_rtl should
-- follow BD.mirroredUILayout(), and not the set or reverted text
-- direction, for proper rendering on the right).
local para_direction_rtl = BD.mirroredUILayout()
local checked_widget = TextWidget:new{
text = " ✓", -- preceded by thin space for better alignment
face = self.face,
para_direction_rtl = para_direction_rtl,
}
self.baseline = checked_widget:getBaseline()
local unchecked_widget = TextWidget:new{
text = "",
face = self.face,
para_direction_rtl = para_direction_rtl,
}
local disabled_checked_widget = TextWidget:new{
text = " ✓", -- preceded by thin space for better alignment
face = self.face,
fgcolor = Blitbuffer.COLOR_DARK_GRAY,
para_direction_rtl = para_direction_rtl,
}
local disabled_unchecked_widget = TextWidget:new{
text = "",
face = self.face,
fgcolor = Blitbuffer.COLOR_DARK_GRAY,
para_direction_rtl = para_direction_rtl,
}
local empty_widget = TextWidget:new{
text = "",
face = self.face,
para_direction_rtl = para_direction_rtl,
}
local widget
if self.checkable then
if self.enabled then
widget = OverlapGroup:new{
(self.checked and checked_widget or empty_widget),
unchecked_widget
}
else
widget = OverlapGroup:new{
(self.checked and disabled_checked_widget or empty_widget),
disabled_unchecked_widget
}
end
else
widget = empty_widget
end
self[1] = widget
self.dimen = unchecked_widget:getSize()
end
function CheckMark:paintTo(bb, x, y)
-- NOTE: Account for alignment/offsets computation being tacked on to self.dimen...
-- This is dumb and probably means we're doing something wonky... somewhere, but it works,
-- and allows us to keep sensible coordinates in dimen, so that they can be used for hitbox checks.
WidgetContainer.paintTo(self, bb, x - self.dimen.x, y - self.dimen.y)
self.dimen.x = x
self.dimen.y = y
end
return CheckMark