aptitudesolver.kv

<CustButton@Button>:
    font_size: 32
<CustLabel@Label>
    color: 1, 1, 1, 1
    font_size: 28

<CalcGridLayout>:
    id: calculator
    display: entry
    rows: 9
    padding: 10
    spacing: 10

    BoxLayout:
        size_hint_y: None
        height: 30
        spacing: 10

        canvas:
            Color:
                rgba: 0, 0, 0, 1
            Rectangle:
                pos: self.pos
                size: self.size
        Button:
            background_normal: 'gui/help.png'
            background_down: 'gui/helpd.png'
            size_hint_x: None
            width: 30
            on_press: calculator.linkopen()
        Button:
            background_normal: 'gui/bug.png'
            background_down: 'gui/bugd.png'
            size_hint_x: None
            width: 30
            on_press: calculator.linkopen()     
    BoxLayout:
        CustLabel:
            text: "QUERY"
    BoxLayout:
        TextInput:
            id: entry
            font_size: 16
            multiline: True
    BoxLayout:
        CustLabel:
            text: "1"
        CustLabel:
            text: "2"
        CustLabel:
            text: "3"
        CustLabel:
            text: "4"

    BoxLayout:
        spacing: 10
        TextInput:
            id: option1
            font_size: 16
            multiline: False
        TextInput:
            id: option2
            font_size: 16
            multiline: False
        TextInput:
            id: option3
            font_size: 16
            multiline: False

        TextInput:
            id: option4
            font_size: 16
            multiline: False

    BoxLayout:
        spacing: 10
        CustLabel:
            text: "CHOICE"
        TextInput:
            id: choice
            font_size: 16
            multiline: False

    BoxLayout:
        orientation: "horizontal"
        height: 30
	
	BoxLayout:
	    orientation: "horizontal"
	    size_hint_x: .25

        CustLabel:
            text: "EFFICIENCY"

        CustLabel:
            text: str(slider_id.value)

        Slider:
            id: slider_id
            min: 0
            max: 100
            value: 100
            step: 1

    BoxLayout:
        spacing: 10
        CustButton:
            text: "CALCULATE"
            on_press:
                calculator.calculate(entry.text) 
                if not entry.text or entry.text == "Error": entry.text = "Error"
                if not option1.text: option1.text = "0"
                if not option2.text: option2.text = "0"
                if not option3.text: option3.text = "0"
                if not option4.text: option4.text = "0"
                choice.text = calculator.optionate(entry.text, option1.text, option2.text, option3.text, option4.text, slider_id.value)
                              
        CustButton:
            text: "RESET"
            on_press: option1.text = ""
            on_press: option2.text = ""
            on_press: option3.text = ""
            on_press: option4.text = ""
            on_press: entry.text = ""
            on_press: choice.text = ""