guiAPI

--Coded by ResaloliPT--

function center(str,width)
    while string.len(str) < width do
        str = " "..str.." "
    end
    return str
end

function round(num,dec)
    local mult = 10^(dec or 0)
    return math.floor(num + mult + 0.5)/mult
end

function Percentage(toCalculate,maxToCalculate)
    return round((toCalculate*100)/maxToCalculate,2)
end

function drawBoxes(xmin,ymin,width,height)
    mon.setBackgroundColor(colors.white)
    mon.setCursorPos(xmin,ymin)
    mon.write(string.rep(" ",width))
    mon.setCursorPos(xmin,ymin+height)
    mon.write(string.rep(" ",width))

    for i = 0, height do
        mon.setCursorPos(xmin,ymin+i)
        mon.write(string.rep(" ",2))
    end

    for i = 0, height do
        mon.setCursorPos(xmin+width,ymin+i)
        mon.write(string.rep(" ",2))
    end
    mon.setBackgroundColor(colors.black)
end

function drawRod(x,y,per)
    for i = 0,10 do
        mon.setCursorPos(x,y+i)
        mon.setBackgroundColor(colors.yellow)
        mon.write(string.rep(" ",3))
    end
    if per ~= nil then
        for i = 0, per/10 do
            mon.setCursorPos(x+1,y+i)
            mon.setBackgroundColor(colors.blue)
            mon.write(" ")
        end
    end
    mon.setBackgroundColor(colors.black)
end

function drawButtons(buttonT)
    for name,data in pairs(buttonT) do
        if data["state"] == 1 then
        mon.setBackgroundColor(data["onColor"])
        else
        mon.setBackgroundColor(data["offColor"])
        end
        mon.setCursorPos(data["xmin"],data["ymin"])
        for i = 0, data["height"] do
            mon.setCursorPos(data["xmin"],data["ymin"]+i)
            mon.write(string.rep(" ",data["width"]))
        end
        mon.setCursorPos(data["xmin"],data["ymin"]+(data["height"]/2))
        mon.write(center(data["display"],data["width"]))
    end
    mon.setBackgroundColor(colors.black)
end

function drawText(x,y,str,color)
    color = color or color.white
    mon.setBackgroundColor(colors.black)
    mon.setCursorPos(x,y)
    mon.setTextColor(color)
    mon.write(str)
end

function addButton(buttonT,name,func,display,xmin,ymin,width,height,offColor,onColor,state)
    buttonT[name] = {}
    buttonT[name]["name"] = name
    buttonT[name]["func"] = func
    buttonT[name]["display"] = display
    buttonT[name]["xmin"] = xmin
    buttonT[name]["ymin"] = ymin
    buttonT[name]["width"] = width
    buttonT[name]["height"] = height
    buttonT[name]["offColor"] = offColor
    buttonT[name]["onColor"] = onColor
    buttonT[name]["state"] = state
end

function checkxy(x, y, buttonT)
    for id,data in pairs(buttonT) do
        if x < data["xmin"]+data["width"] and x > data["xmin"] then
            if y < data["ymin"]+data["height"] and y > data["ymin"] then
            data["func"]()
            end
        end
    end
   return false
end

function getClick()
    event,side,x,y = os.pullEvent("monitor_touch")
    checkxy(x, y)
end