Animated Clock in kivy

[Prabhat K.C.]

I need to include a clock in one of my screens. I found some help online on how to do a 360 degree clock but I am being unable to integrate within my screenmanager in one of the screens. I am getting "Ticks" class not found error. What would be the easiest approach to fix this? Below are my python and kivy files.

main.py

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.properties import ObjectProperty, StringProperty, NumericProperty
from kivy.uix.image import Image
from kivy.uix.behaviors import ButtonBehavior
from kivy.uix.actionbar import ActionButton
from kivy.uix.screenmanager import FadeTransition, FallOutTransition
from kivy.graphics import Color, Rectangle, Line
from kivy.uix.widget import Widget
from kivy.uix.slider import Slider
from math import cos, sin, pi
from kivy.clock import Clock
import datetime


class HomeWin(Screen):
    pass
class InchFootWin(Screen):
    pass
class FootYardWin(Screen):
    pass
class DayHourWin(Screen):
    pass
class WeekDayWin(Screen):
    pass
class ResultWindow(Screen):
    pass

class LengthWin(Screen):
    pass

class TimeWin(Screen):
    pass

class LoginWin(Screen):
    pass

class InterFootInch(Screen):
    # def manipulate(self, slider):
    #     app = App.get_running_app()
    #     self.canvas.rect1.size = int(slider.value)
    #     self.rect2.size = int(slider.value) * 7
    pass

class InterFootYard(Screen):
    pass

class InterDayHour(Screen):
    pass


class scrManager(ScreenManager):
    def FeetToYard(self, userFootYard):
        app = App.get_running_app()
        if (float(userFootYard.text)/3) > 1:
            app.result = f'{float(userFootYard.text)/3:0.2f}' + " Yards"
        else:
            app.result = f'{float(userFootYard.text)/3: 0.2f}' + " Yard"

    def YardToFeet(self, userFootYard):
        app = App.get_running_app()
        if (3 * float(userFootYard.text)) > 1:
            app.result = f'{(3 * float(userFootYard.text)):0.2f}' + " Feet"
        else:
            app.result = f'{(3 * float(userFootYard.text)):0.2f}' + " Foot"

    def FeetToInches(self, userInchFoot):

        app = App.get_running_app()
        if (12 * float(userInchFoot.text)) > 1:
            app.result = f'{(12 * float(userInchFoot.text)):0.2f}' + " Inches"
        else:
            app.result = f'{(12 * float(userInchFoot.text)):0.2f}' + " Inch"


    def InchToFeet(self, userInchFoot):
        #inchData = userSource.text
        #tempData2 = str(int(inchData) / 12)
        app = App.get_running_app()
        if (float(userInchFoot.text)/12) > 1:
            app.result = f'{float(userInchFoot.text)/12:0.2f}' + " Feet"
        else:
            app.result = f'{float(userInchFoot.text) / 12:0.2f}' + " Foot"

    def DayToHour(self, userDayHour):
        app = App.get_running_app()
        if(24 * float(userDayHour.text)) > 1:
            app.result = f'{(24 * float(userDayHour.text)):0.2f}' + " Hours"
        else:
            app.result = f'{(24 * float(userDayHour.text)):0.2f}' + " Hour"

    def HourToDay(self, userDayHour):
        app = App.get_running_app()
        if(float(userDayHour.text)/24) > 1:
            app.result = f'{float(userDayHour.text)/24:0.2f}' + " Days"
        else:
            app.result = f'{float(userDayHour.text)/24:0.2f}' + " Day"

    def WeekToDay(self, userWeekDay):
        app = App.get_running_app()
        if(7 * float(userWeekDay.text)) > 1:
            app.result = f'{(7 * float(userWeekDay.text)):0.2f}' + " Days"
        else:
            app.result = f'{(7 * float(userWeekDay.text)):0.2f}' + " Day"

    def DayToWeek(self, userWeekDay):
        app = App.get_running_app()
        if(float(userWeekDay.text)/7) > 1:
            app.result = f'{float(userWeekDay.text)/7:0.2f}' + " Weeks"
        else:
            app.result = f'{float(userWeekDay.text)/7:0.2f}' + " Week"



kv = Builder.load_file("clockunit.kv")

class Ticks(Widget):
    def __init__(self, **kwargs):
        super(Ticks, self).__init__(**kwargs)
        self.bind(pos=self.update_clock)
        self.bind(size=self.update_clock)

    def update_clock(self, *args):
        self.canvas.clear()
        with self.canvas:
            time = datetime.datetime.now()
            Color(0.2, 0.5, 0.2)
            Line(points=[self.center_x, self.center_y, self.center_x+0.8*self.r*sin(pi/30*time.second), self.center_y+0.8*self.r*cos(pi/30*time.second)], width=1, cap="round")
            Color(0.3, 0.6, 0.3)
            Line(points=[self.center_x, self.center_y, self.center_x+0.7*self.r*sin(pi/30*time.minute), self.center_y+0.7*self.r*cos(pi/30*time.minute)], width=2, cap="round")
            Color(0.4, 0.7, 0.4)
            th = time.hour*60 + time.minute
            Line(points=[self.center_x, self.center_y, self.center_x+0.5*self.r*sin(pi/360*th), self.center_y+0.5*self.r*cos(pi/360*th)], width=3, cap="round")

class MyTouch(Widget):
    pass



class MyMainApp(App):
    result = StringProperty("initialization")
    #rect1.size = ObjectProperty(0,50)
    # rect2.size = ObjectProperty(0,50)
    def build(self):
        return kv




if __name__ == "__main__":
    MyMainApp().run()

clockunit.kv

#:import FadeTransition kivy.uix.screenmanager.FadeTransition
#:import FadeTransition kivy.uix.screenmanager.FallOutTransition
#:import math math

scrManager:
    id: scman
    LoginWin:
        name: "loginWin"
    HomeWin:
        name: "homeWin"
    LengthWin:
        name: "lengthWin"
    TimeWin:
        name: "timeWin"
    InchFootWin:
        name: "inchFootWin"
    FootYardWin:
        name: "footYardWin"
    ResultWindow:
        name: "result"
    DayHourWin:
        name: "dayHourWin"
    WeekDayWin:
        name: "weekDayWin"
    InterFootInch:
        name: "interFootInchWin"
    InterFootYard:
        name: "interFootYardWin"
    InterDayHour:
        name: "interDayHourWin"

<HomeButton@ButtonBehavior+Image>
    source: 'home.jpg'
    size_hint: 0.25,0.1
    on_release:
        app.root.current = "homeWin"
    pos_hint: {"x": 0.35}
<LeftDownBtn@Button>
    size_hint: 0.17, 0.12
    pos_hint: {"x": 0.15 , "top": 0.3}
    opacity: 0.8
<RightDownBtn@Button>
    size_hint: 0.17, 0.12
    pos_hint: {"x": 0.65, "top": 0.3}
    opacity: 0.8
[ClockNumber@Label]:
    text: str(ctx.i)
    pos_hint: {"center_x": 0.5+0.42*math.sin(math.pi/6*(ctx.i-12)), "center_y": 0.5+0.42*math.cos(math.pi/6*(ctx.i-12))}
    font_size: self.height/16


<LoginWin>:
    FloatLayout:
        Image:
            source: 'locked.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 1
            allow_stretch: True
            keep_ratio: False
        LeftDownBtn:
            text: 'I AM A TEACHER'
            on_release:
                root.manager.transition = FadeTransition()
                app.root.current = "homeWin"
        RightDownBtn:
            text: 'I AM A STUDENT'
            on_release:
                root.manager.transition = FadeTransition()
                app.root.current = "homeWin"


<HomeWin>:
    FloatLayout:
        Image:
            source: 'bgnd.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 0.3
            allow_stretch: True
            keep_ratio: False
        Image:
            source: 'metric.jpg'
            pos_hint: {"x":0, "top":0.7}
            size_hint: 1,0.7
            allow_stretch: True
            keep_ratio: False

        FloatLayout:
            cols: 1
            Label:
                text: "Select a category of conversion"
                color: 0,0.6,1,0.9
                font_size: 32
                size_hint: 1,0.3
                pos_hint: {"x":0, "top":1}
            FloatLayout:
                cols: 2
                Button:
                    id: lengthBtn
                    text: "LENGTH"
                    font_size: 30
                    color: 0,0.9,0.9,1
                    on_release:
                        root.manager.transition = FadeTransition()
                        app.root.current = "lengthWin"
                    size_hint: 0.23,0.1
                    pos_hint: {"x":0.1, "top":0.3}
                    opacity: 0.8
                Button:
                    id: timeBtn
                    text: "TIME"
                    font_size: 30
                    color: 0,0.9,0.9,1
                    on_release:
                        root.manager.transition = FadeTransition()
                        app.root.current = "timeWin"

                    size_hint: 0.23,0.1
                    pos_hint: {"x":0.6, "top":0.3}
                    opacity: 0.8
                HomeButton:



<TimeWin>:
    FloatLayout:
        Image:
            source: 'time.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 1
            allow_stretch: True
            keep_ratio: False
        Label:
            text: "SELECT"
            color: 0.9,0.4,0.7,1
            pos_hint: {"x": 0, "top": 0.9}
            font_size: 40
            size_hint: 1,0.4

        FloatLayout:

            LeftDownBtn:
                id: weekToDayBtn
                text: "Week <--> Day"
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "weekDayWin"

            RightDownBtn:
                id: hourToMinBtn
                text: "Hour <--> Day"
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "dayHourWin"


            HomeButton:


<LengthWin>:
    FloatLayout:
        Image:
            source: 'measure.jpg'
        Label:
            text: "Choose your desired conversion"
            color: 0.9,0.4,0.7,1
            pos_hint: {"x": 0, "top": 0.9}
            font_size: 40
            size_hint: 1,0.4

        FloatLayout:
            LeftDownBtn:
                id: inchToFootBtn
                text: "Inch <--> Feet"
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "inchFootWin"
                color: 0.9,0.8,0.8,1

            RightDownBtn:
                id: FeetToYard
                text: "Feet <--> Yard"
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "footYardWin"
                color: 0.9,0.8,0.8,1

            HomeButton:

<FootYardWin>:
    FloatLayout:
        Image:
            source: 'footyard.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 1
            allow_stretch: True
            keep_ratio: False

        FloatLayout:

            Label:
                text: "Input the number"
                color: 0.1,0.5,0.4,1
                pos_hint: {"x": 0.15, "top": 0.9}
                font_size: 40
                size_hint: 0.4,0.4
            TextInput:
                id: userFootYard
                multiline: False
                color: 0.6,0.4,0.7,1
                pos_hint: {"x": 0.6, "top": 0.75}
                font_size: 40
                size_hint: 0.17,0.1
                multiline: False
            LeftDownBtn:
                id: footToYardBtn
                text: "Foot => Yard"
                on_press:
                    app.root.FeetToYard(userFootYard)
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "result"

            RightDownBtn:
                id: yardToFootBtn
                text: "Yard => Foot"
                on_press:
                    app.root.YardToFeet(userFootYard)
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "result"

            Button:
                text: "Try Interactive"
                on_release:
                    app.root.current = "interFootYardWin"
                size_hint: 0.2, 0.11
                pos_hint: {"x": 0.39 , "top": 0.46}
                opacity: 0.8

            HomeButton:

<InchFootWin>:
    FloatLayout:
        Image:
            source: 'footyard.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 1
            allow_stretch: True
            keep_ratio: False

        FloatLayout:

            Label:
                text: "Input the number"
                color: 0.1,0.5,0.4,1
                pos_hint: {"x": 0.15, "top": 0.9}
                font_size: 40
                size_hint: 0.4,0.4
            TextInput:
                id: userInchFoot
                multiline: False
                color: 0.6,0.4,0.7,1
                pos_hint: {"x": 0.6, "top": 0.75}
                font_size: 40
                size_hint: 0.17,0.1
                multiline: False
            LeftDownBtn:
                id: FootToInchBtn
                text: "Foot => Inch"
                on_press:
                    app.root.FeetToInches(userInchFoot)
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "result"

            RightDownBtn:
                id: inchToFootBtn
                text: "Inch => Foot"
                on_press:
                    app.root.YardToFeet(userInchFoot)
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "result"

            Button:
                text: "Try Interactive"
                on_release:
                    app.root.current = "interLenWin"
                size_hint: 0.2, 0.11
                pos_hint: {"x": 0.39 , "top": 0.46}
                opacity: 0.8

            HomeButton:

<DayHourWin>:
    FloatLayout:
        Image:
            source: 'time.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 1
            allow_stretch: True
            keep_ratio: False

        FloatLayout:

            Label:
                text: "Input the number"
                color: 0.3,0.4,0.9,1
                pos_hint: {"x": 0.15, "top": 0.9}
                font_size: 40
                size_hint: 0.4,0.4
            TextInput:
                id: userDayHour
                color: 0.6,0.4,0.7,1
                pos_hint: {"x": 0.6, "top": 0.75}
                font_size: 40
                size_hint: 0.17,0.1
                multiline: False
            LeftDownBtn:
                id: dayToHourBtn
                text: "Convert Day To Hour"
                on_press:
                    app.root.DayToHour(userDayHour)
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "result"

            RightDownBtn:
                id: hourToDayBtn
                text: "Convert Hour to Day"
                on_press:
                    app.root.HourToDay(userDayHour)
                on_release:
                    root.manager.transition = FadeTransition()
                    app.root.current = "result"

            Button:
                text: "Try Interactive"
                on_release:
                    app.root.current = "interDayHourWin"
                size_hint: 0.2, 0.11
                pos_hint: {"x": 0.39 , "top": 0.46}
                opacity: 0.8


            HomeButton:

<WeekDayWin>:
    GridLayout:
        cols: 2
        Label:
            text: "Input the number"
        TextInput:
            id: userWeekDay
            multiline: False
        Button:
            id: weekToDayBtn
            text: "Convert Week to Day"
            on_press:
                app.root.WeekToDay(userWeekDay)
            on_release:
                root.manager.transition = FadeTransition()
                app.root.current = "result"

        Button:
            id: dayToWeekBtn
            text: "Convert Day To Week"
            on_press:
                app.root.DayToWeek(userWeekDay)
            on_release:
                root.manager.transition = FadeTransition()
                app.root.current = "result"

        HomeButton:




<ResultWindow>:
    on_enter:
        answer.text = 'Your Result: ' + app.result
    FloatLayout:
        Image:
            source: 'blank.jpg'
            pos_hint: {"x":0, "top":1}
            size_hint: 1, 1
            allow_stretch: True
            keep_ratio: False

        FloatLayout:
            Label:
                id: answer
                color: 0.2,0.4,0.7,1
                pos_hint: {"x": 0, "top": 0.8}
                font_size: 40
                size_hint: 1,0.4


            Button:
                text: "BACK"
                font_size: 30
                color: 0,0.9,0.9,1
                on_release:
                    app.root.current = "homeWin"
                size_hint: 0.23,0.1
                pos_hint: {"x":0.3, "top": 0.35}
                opacity: 0.3

            HomeButton:
#Comments
<InterFootInch@BoxLayout>:
    orientation: 'vertical'
    canvas:
        Color:
            rgba: .5, .5, .5, 1

        Rectangle:
            size: self.size
            pos: self.pos
            source: 'bckgndn.jpg'
    Slider:
        size_hint_y: .25

        id: slider
        min: 0
        max: 50
        step: 1
        orientation: 'horizontal'
        canvas:
            Color:
                rgba: 0,0.5,0.5,1
            Rectangle:
                size: (1 + self.value * 1, 50)
                pos: (50 ,450)
            Color:
                rgba: 0.2,1,0.2,1
            Rectangle:
                size: (7 + self.value * 7, 50)
                pos:(50,250)
    #Label:
        #text: str(slider.value)
       # font_size: 40
    Label:
        text: str(slider.value) + ' Feet =' + str(7*slider.value) + ' Inches'
        pos: (100,100)
        font_size: 30
        color: 0.2,0.6,0.6,1
    HomeButton:

<InterFootYard@BoxLayout>:
    orientation: 'vertical'
    canvas:
        Color:
            rgba: .5, .5, .5, 1

        Rectangle:
            size: self.size
            pos: self.pos
            source: 'bckgndn.jpg'
    Slider:
        size_hint_y: .25

        id: slider
        min: 0
        max: 50
        step: 1
        orientation: 'horizontal'
        canvas:
            Color:
                rgba: 0,0.5,0.5,1
            Rectangle:
                size: (1 + self.value * 1, 50)
                pos: (50 ,450)
            Color:
                rgba: 0.2,1,0.2,1
            Rectangle:
                size: (3 + self.value * 3, 50)
                pos:(50,250)
    #Label:
        #text: str(slider.value)
       # font_size: 40
    Label:
        text: str(slider.value) + ' Yard =' + str(3*slider.value) + ' Feet'
        pos: (100,100)
        font_size: 30
        color: 0.2,0.6,0.6,1
    HomeButton:

<InterDayHour>:

    face: face
    ticks: ticks
    FloatLayout:
        id: face
        size_hint: None, None
        pos_hint: {"center_x":0.5, "center_y":0.5}
        size: 0.9*min(root.size), 0.9*min(root.size)
        canvas:
            Color:
                rgb: 0.1, 0.1, 0.1
            Ellipse:
                size: self.size
                pos: self.pos
        ClockNumber:
            i: 1
        ClockNumber:
            i: 2
        ClockNumber:
            i: 3
        ClockNumber:
            i: 4
        ClockNumber:
            i: 5
        ClockNumber:
            i: 6
        ClockNumber:
            i: 7
        ClockNumber:
            i: 8
        ClockNumber:
            i: 9
        ClockNumber:
            i: 10
        ClockNumber:
            i: 11
        ClockNumber:
            i: 12
    Ticks:
        id: ticks
        r: min(root.size)*0.9/2
    HomeButton:

[Elliot Garbus]

I have not come across that issue – but you do not have a Clock.schedule_interval().  I would expect to see this to drive the update of the second hand.

--
You received this message because you are subscribed to the Google Groups "Kivy users support" group.
To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/a8a9507f-da5e-4c0c-8942-07a0a0b46f13%40googlegroups.com.

 

[Prabhat K.C.]

My primary issue here is that I cannot run the program and the error is " kivy.factory.FactoryException: Unknown class <Ticks>" 

I found this code as a stand alone code. so the ticks class in the python file and <InterDayHour> Screen in the kivy file is what I am trying to work with. I know I didn't put the Ticks class properly in the python file, and don't know what to do there. Also if I changed the positioning of Ticks class or definitions within them, I am not quite sure how to accordingly make changes in the kivy file. You have helped me so much in the past, so I am quite hopeful you could help me here. 

To unsubscribe from this group and stop receiving emails from it, send an email to kivy-...@googlegroups.com.

[Prabhat K.C.]

Or can you guide me how can make a clock that moves from a scratch so I can put it inside one of my blank screens. A very simple clock that moves would work to start with. Thank you.

On Wednesday, March 4, 2020 at 10:18:58 PM UTC-6, Elliot Garbus wrote:

To unsubscribe from this group and stop receiving emails from it, send an email to kivy-...@googlegroups.com.

[Elliot Garbus]

What is the series of buttons you press to see this error?

Sent from my iPad

On Mar 4, 2020, at 9:28 PM, 'Prabhat K.C.' via Kivy users support <kivy-...@googlegroups.com> wrote:



To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/8aa83180-e82c-4434-8f25-c852637e168f%40googlegroups.com.

[Elliot Garbus]

Does it need to be an analog clock face? Is a digital clock ok?

Sent from my iPad

On Mar 4, 2020, at 9:42 PM, 'Prabhat K.C.' via Kivy users support <kivy-...@googlegroups.com> wrote:



To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/a470241e-7cf9-4582-b6e9-4a3191c87da8%40googlegroups.com.

[Prabhat K.C.]

Needed an analog clock face with hour minute and second hands which in future I am planning to make interactive but that is for later. For now, just an analog clock that rotates.

To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/a470241e-7cf9-4582-b6e9-4a3191c87da8%40googlegroups.com.

[Elliot Garbus]

To Ticks I added the line below:

 

class Ticks(Widget):
    def __init__(self, **kwargs):
        super(Ticks, self).__init__(**kwargs)
        self.bind(pos=self.update_clock)
        self.bind(size=self

.update_clock)
        Clock.schedule_interval(self.update_clock, 1)

 

I start the app and press:

I am a student

Time

Hour ßà Day

Interactive

 

Now I see an analog clock face ticking.

 

# kv = Builder.load_file("clockunit.kv")

class Ticks(Widget):
    def __init__(self, **kwargs):
        super(Ticks, self).__init__(**kwargs)
        self.bind(pos=self.update_clock)
        self.bind(size=self

.update_clock)
        Clock.schedule_interval(self.update_clock, 1)

    def update_clock(self, *args):
        self.canvas.clear()
        with self.canvas:
            time = datetime.datetime.now()
            Color(0.2, 0.5, 0.2)
            Line(points=[self.center_x, self.center_y, self.center_x+0.8*self.r*sin(pi/30*time.second), self.center_y+0.8*self.r*cos(pi/30*time.second)], width=1, cap="round")
            Color(0.3, 0.6, 0.3)
            Line(points=[self.center_x, self.center_y, self.center_x+0.7*self.r*sin(pi/30*time.minute), self.center_y+0.7*self.r*cos(pi/30*time.minute)], width=2, cap="round")
            Color(0.4, 0.7, 0.4)
            th = time.hour*60 + time.minute
            Line(points=[self.center_x, self.center_y, self.center_x+0.5*self.r*sin(pi/360*th), self.center_y+0.5*self.r*cos(pi/360*th)], width=3, cap="round")

class MyTouch(Widget):
    pass


class MyMainApp(App):
    result = StringProperty("initialization")
    #rect1.size = ObjectProperty(0,50)
    # rect2.size = ObjectProperty(0,50)

    def build(self

):
        return Builder.load_file("clockunit.kv")

if __name__ == "__main__":
    MyMainApp().run()

[Prabhat K.C.]

Thank you so much. Worked perfect. You might know this better. Is there any widget similar to Kivy Calendar DatePicker which is available to use for python 3.7?

[Elliot Garbus]

I was under the impression that the Kivy Calendar  DatePicker works under Python3.   Do a google search I also recall seeing some forks on Github.  

--

You received this message because you are subscribed to the Google Groups "Kivy users support" group.

To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/b536c471-590b-486c-bb6a-1ec537512813%40googlegroups.com.

 

[Prabhat K.C.]

I did actually try to implement it. I went to the Kivy Calendar package description after that and it says only for python 2.7. Thus was hoping if there was something else similar so I can show a flippable calendar I can change months and all.

To unsubscribe from this group and stop receiving emails from it, send an email to kivy-...@googlegroups.com.

[Elliot Garbus]

The source code is here: https://bitbucket.org/xxblx/kivycalendar/src/master/KivyCalendar/

The last commit says Fixes for using Python3.  If the version from PyPI does not support Python3, just use the code at the link above.

To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/d231f13c-a825-4786-90b0-88f37eafec93%40googlegroups.com.