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

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

local function setHeight(win, height)
    local winX, winY = win.getPosition()
    local sizeX, sizeY = win.getSize()
    win.reposition(winX, winY, sizeX, 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), y)
    return math.max(0, tw-length-x+1)
end


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