import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

class TableWindow(Gtk.Window):

    def __init__(self):

        Gtk.Window.__init__(self, title="Injection Time Calculator")

        table = Gtk.Table(6, 2, True)
        self.add(table)

        sizeLabel = Gtk.Label("WALL SIZE")
        widthLabel = Gtk.Label("WIDTH")
        heightLabel = Gtk.Label("HEIGHT")
        fsLabel = Gtk.Label("FLAT STUD?")
        injLabel = Gtk.Label()

        heightEntry=Gtk.Entry()
        widthEntry=Gtk.Entry()

        sizeBox = Gtk.ComboBoxText()

        sizeBox.append("1","90")
        sizeBox.append("2","140")
        sizeBox.append("3","219")

        fsCheckButton=Gtk.CheckButton()

        calculateButton=Gtk.Button.new_with_label("CALCULATE INJECTION TIME")
        calculateButton.connect("clicked", self.Click)


        table.attach(sizeLabel, 0, 1, 0, 1)
        table.attach(widthLabel, 0, 1, 1, 2)
        table.attach(heightLabel, 0, 1, 2, 3)
        table.attach(fsLabel, 0, 1, 3, 4)
        table.attach(injLabel, 0, 2, 5, 6)

        table.attach(calculateButton, 0, 2, 4, 5)

        table.attach(widthEntry, 1, 2, 1, 2)
        table.attach(heightEntry, 1, 2, 2, 3)

        table.attach(sizeBox, 1, 2, 0, 1)

        table.attach(fsCheckButton, 1, 2, 3, 4)

        global heightEntry
        global widthEntry
        global sizeBox
        global fsCheckButton
        global timeVar
        global injTime
        global injLabel

    def Click(self, calculateButton):
        studWidth=sizeBox.get_active_text()

        areaHeight=heightEntry.get_text()
        areaWidth=widthEntry.get_text()

        if fsCheckButton.get_active():
            if studWidth=="90":
                areaWidth=float(areaWidth)-59
            elif studWidth=="140":
                areaWidth=float(areaWidth)-38
            elif studWidth=="219":
                areaWidth=float(areaWidth)-24.3
        timeVar=float(studWidth)*10.7/140
        injTime=((float(areaWidth)*float(areaHeight)*float(timeVar))/1000000)
        a= str( 'INJECTION TIME IS '+str(injTime)[:7]+' SECONDS OR '+str((round(injTime*5))/5)+' ROUNDED')
        injLabel.set_text(a)

win = TableWindow()
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()