kivy:如何显示超过纹理最大大小的长图像

from kivy.app import App
from kivy.uix.scrollview import ScrollView
from kivy.uix.image import Image

class LongImageScrollView(ScrollView):
    def __init__(self, **kwargs):
        super(LongImageScrollView, self).__init__(**kwargs)
        
        # 创建一个Image组件，并设置其source为长图像的路径
        image = Image(source='path_to_long_image.png')
        
        # 将Image组件添加到ScrollView中
        self.add_widget(image)

class MyApp(App):
    def build(self):
        return LongImageScrollView()

if __name__ == '__main__':
    MyApp().run()