cc/winhlp.lua

local function translate(window, x, y)
    local winX, winY = window.getPosition()
    return x-winX+1, y-winY+1
end

local function contains(window, x, y)
    local winX, winY = window.getPosition()
    local width, height = window.getSize()
    return x >= winX and y >= winY and x-winX < width and y-winY < height
end

local function alignRight(termlike, length)
    local tw,th = termlike.getSize()
    local x,y = termlike.getCursorPos()
    termlike.setCursorPos(math.min(x, tw-length+1))
    return math.max(0, tw-length-x)
end


return {
    translate=translate,
    contains=contains,
    alignRight=alignRight,
}