Помощь кнопка меню в коде

[Karina. 234567]

Помогите пожалуйста у меня есть код что то наподобие рисовалки, как сделать кнопку на которую нажимаешь и можешь выбрать цвет. То есть ни как сейчас они все по отдельности, а в одном меню например"краски"

from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.button import Button

from random import random
from kivy.core.window import Window
from kivy.graphics import (Color, Ellipse, Rectangle, Line)


class PainterWidget(Widget):
    color = (0.2, 0, 1, 1)

    def on_touch_down(self, touch):
        with self.canvas:
            Color(rgba=self.color)
            touch.ud["line"] = Line(points=(touch.x, touch.y), width=15)

    def on_touch_move(self, touch):
        touch.ud["line"].points += (touch.x, touch.y)
    
class PaintApp(App):
    def build(self):
        parent = Widget()
        self.painter = PainterWidget()
        parent.add_widget(self.painter)

        parent.add_widget(Button(text = 'Clear' , on_press = self.clear_canvas, size = (100, 50)))
        parent.add_widget(Button(text = 'Save' , on_press = self.save, size = (100, 50), pos = (100, 0)))
        parent.add_widget(Button(text = 'Screen', on_press = self.screen, size = (100, 50), pos=(200, 0 )))
        parent.add_widget(Button(text = 'red', on_press = self.red, size = (100, 50), pos=(300, 0 )))
        parent.add_widget(Button(text = 'white', on_press = self.white, size = (100, 50), pos=(400, 0 )))
        parent.add_widget(Button(text = 'blue', on_press = self.blue, size = (100, 50), pos=(500, 0 )))
      
        return parent
  
    
    def red(self, instance):
        self.painter.color = (1, 0, 0.2, 1)

    def blue(self, instance):
        self.painter.color = (0.2, 0, 1, 1)   

    def white(self, instance):
        self.painter.color = (1, 1, 1, 1)
    
    def clear_canvas(self, instance):
        self.painter.canvas.clear()   

    def save(self, instance):
        self.painter.size = (Window.size[0], Window.size[1])
        self.painter.export_to_png('mage.png')

    def screen(self, instance):
        Window.screenshot('screen.png')
        
if __name__ == '__main__':
    PaintApp().run()

 

[stud_55]

Вот пример меню с использованием ActionBar`a:

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.widget import Widget
from kivy.core.window import Window
from kivy.graphics import Color, Line
from kivy.uix.boxlayout import BoxLayout


kv_str = Builder.load_string('''
ActionBar:
    ActionView:
        use_separator: True
        ActionPrevious:
            title: 'PaintApp'
            with_previous: False
        ActionButton:
            text: 'Clear'
            on_press: app.clear_canvas()
        ActionGroup:
            text: 'File'
            mode: 'spinner'
            ActionButton:
                text: 'Save'
                on_press: app.save()
            ActionButton:
                text: 'Screen'
                on_press: app.screen()
        ActionGroup:
            text: 'Colors'
            mode: 'spinner'
            ActionButton:
                text: 'Red'
                on_press: app.change_color((1, 0, 0.2, 1))
            ActionButton:
                text: 'Blue'
                on_press: app.change_color((0.2, 0, 1, 1))
            ActionButton:
                text: 'Green'
                on_press: app.change_color((0.2, 1, 0.2, 1))
            ActionButton:
                text: 'Black'
                on_press: app.change_color((0, 0, 0, 1))
''')


class PainterWidget(Widget):
    color = (0.2, 0, 1, 1)

    def on_touch_down(self, touch):
        with self.canvas:
            Color(rgba=self.color)
            touch.ud["line"] = Line(points=(touch.x, touch.y), width=15)

    def on_touch_move(self, touch):
        touch.ud.get("line").points += (touch.x, touch.y)


class PaintApp(App):
    def build(self):
        parent = BoxLayout(orientation='vertical')
        self.painter = PainterWidget()
        parent.add_widget(self.painter)
        parent.add_widget(kv_str)

        return parent

    def change_color(self, color):
        self.painter.color = color

    def clear_canvas(self):
        self.painter.canvas.clear()

    def save(self):
        self.painter.size = (Window.size[0], Window.size[1])
        self.painter.export_to_png("mage.png")

    def screen(self):
        Window.screenshot("screen.png")


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

 

[Karina. 234567]

Спасибо большое!!!