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opus/sys/apis/ui/components/TextEntry.lua
2019-03-29 15:47:01 -04:00

125 lines
2.7 KiB
Lua

local class = require('class')
local entry = require('entry')
local UI = require('ui')
local Util = require('util')
local colors = _G.colors
local _rep = string.rep
UI.TextEntry = class(UI.Window)
UI.TextEntry.defaults = {
UIElement = 'TextEntry',
value = '',
shadowText = '',
focused = false,
textColor = colors.white,
shadowTextColor = colors.gray,
backgroundColor = colors.black, -- colors.lightGray,
backgroundFocusColor = colors.black, --lightGray,
height = 1,
limit = 6,
accelerators = {
[ 'control-c' ] = 'copy',
}
}
function UI.TextEntry:postInit()
self.value = tostring(self.value)
self.entry = entry({ limit = self.limit, offset = 2 })
end
function UI.TextEntry:layout()
UI.Window.layout(self)
self.entry.width = self.width - 2
end
function UI.TextEntry:setValue(value)
self.value = value
self.entry:unmark()
self.entry.value = tostring(value)
self.entry:updateScroll()
end
function UI.TextEntry:setPosition(pos)
self.entry.pos = pos
self.entry.value = tostring(self.value)
self.entry:updateScroll()
end
function UI.TextEntry:draw()
local bg = self.backgroundColor
local tc = self.textColor
if self.focused then
bg = self.backgroundFocusColor
end
local text = tostring(self.value)
if #text > 0 then
if self.entry.scroll > 0 then
text = text:sub(1 + self.entry.scroll)
end
if self.mask then
text = _rep('*', #text)
end
else
tc = self.shadowTextColor
text = self.shadowText
end
self:write(1, 1, ' ' .. Util.widthify(text, self.width - 2) .. ' ', bg, tc)
if self.entry.mark.active then
local tx = math.max(self.entry.mark.x - self.entry.scroll, 0)
local tex = self.entry.mark.ex - self.entry.scroll
if tex > self.width - 2 then -- unsure about this
tex = self.width - 2 - tx
end
if tx ~= tex then
self:write(tx + 2, 1, text:sub(tx + 1, tex), colors.gray, tc)
end
end
if self.focused then
self:setCursorPos(self.entry.pos - self.entry.scroll + 2, 1)
end
end
function UI.TextEntry:reset()
self.entry:reset()
self.value = ''
self:draw()
self:updateCursor()
end
function UI.TextEntry:updateCursor()
self:setCursorPos(self.entry.pos - self.entry.scroll + 2, 1)
end
function UI.TextEntry:focus()
self:draw()
if self.focused then
self:setCursorBlink(true)
else
self:setCursorBlink(false)
end
end
function UI.TextEntry:eventHandler(event)
local text = self.value
self.entry.value = tostring(text)
if event.ie and self.entry:process(event.ie) then
if self.entry.textChanged then
self.value = self.entry.value
self:draw()
if text ~= self.value then
self:emit({ type = 'text_change', text = self.value, element = self })
end
elseif self.entry.posChanged then
self:updateCursor()
end
return true
end
return false
end