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opus/sys/apis/ui/components/Embedded.lua
2019-02-26 18:03:09 -05:00

77 lines
1.7 KiB
Lua

local class = require('class')
local Terminal = require('terminal')
local UI = require('ui')
local colors = _G.colors
UI.Embedded = class(UI.Window)
UI.Embedded.defaults = {
UIElement = 'Embedded',
backgroundColor = colors.black,
textColor = colors.white,
maxScroll = 100,
accelerators = {
up = 'scroll_up',
down = 'scroll_down',
}
}
function UI.Embedded:setParent()
UI.Window.setParent(self)
self.win = Terminal.window(UI.term.device, self.x, self.y, self.width, self.height, false)
self.win.setMaxScroll(self.maxScroll)
local canvas = self:getCanvas()
self.win.getCanvas().parent = canvas
table.insert(canvas.layers, self.win.getCanvas())
self.canvas = self.win.getCanvas()
self.win.setCursorPos(1, 1)
self.win.setBackgroundColor(self.backgroundColor)
self.win.setTextColor(self.textColor)
self.win.clear()
end
function UI.Embedded:layout()
UI.Window.layout(self)
if self.win then
self.win.reposition(self.x, self.y, self.width, self.height)
end
end
function UI.Embedded:draw()
self.canvas:dirty()
end
function UI.Embedded:enable()
self.canvas:setVisible(true)
self.canvas:raise()
if self.visible then
-- the window will automatically update on changes
-- the canvas does not need to be rendereed
self.win.setVisible(true)
end
UI.Window.enable(self)
self.canvas:dirty()
end
function UI.Embedded:disable()
self.canvas:setVisible(false)
self.win.setVisible(false)
UI.Window.disable(self)
end
function UI.Embedded:eventHandler(event)
if event.type == 'scroll_up' then
self.win.scrollUp()
return true
elseif event.type == 'scroll_down' then
self.win.scrollDown()
return true
end
end
function UI.Embedded:focus()
-- allow scrolling
end