Chuanshuoge: kivy 7 draw with python

Sunday, July 4, 2021

#main.py

from kivy.app import App

from kivy.uix.boxlayout import BoxLayout

import random

from kivy.graphics.vertex_instructions import (Rectangle, Ellipse, Line)

from kivy.graphics.context_instructions import Color

from kivy.properties import ListProperty, ObjectProperty

class ScatterTextWidget(BoxLayout):

text_colour = ListProperty([1, 0, 0, 1])

def __init__(self, **kwargs):

super(ScatterTextWidget, self).__init__(**kwargs)

with self.canvas.after:

Color(0, 1, 0, 1)

Rectangle(pos=(0, 100), size=(300, 100))

Ellipse(pos=(0, 400), size=(300, 100))

Line(points=[0, 0, 500, 600, 400, 300], close=True, width=3)

def change_label_colour(self, *args):

colour = [random.random() for i in [0,1,2]] + [1]

print(colour)

self.text_colour = colour

class TutorialApp(App):

def build(self):

return ScatterTextWidget()

TutorialApp().run()

reference:

Chuanshuoge