我目前正在学习Kivy,我正在使用tkinter filechooser浏览存储在计算机上的图像,并希望将所选图像设置为“图像”小部件的源。
下面的代码在单击按钮时启动tkinter filechooser,我应该如何将获取的文件设置为图像小部件的源。谢谢您的宝贵时间。
main.py
document.getElementById , document.getElementsByClassName , document.querySelector
sample.kv
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.core.window import Window
from kivy.uix.popup import Popup
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import ObjectProperty
from tkinter.filedialog import askopenfilename
from tkinter import Tk
class SampBoxLayout(BoxLayout):
# Defines two FileChoosers.
def get_image_one(self):
# Select image file types, returned image should be used as source of Image widget.
Tk().withdraw() # avoids window accompanying tkinter FileChooser
img1 = askopenfilename(initialdir = "/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("all files","*.*")))
return img1
def get_image_two(self):
Tk().withdraw()
img2 = askopenfilename(initialdir = "/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("all files","*.*")))
return img2
class SampleApp(App):
def build(self):
# Set the background color for the window
Window.clearcolor = (1, 1, 1, 1)
return SampBoxLayout()
sample_app = SampleApp()
sample_app.run()
答案 0 :(得分:0)
解决方案是ColoredBackground
可以在get_image_one
和get_image_two
中访问,为此我们可以做以下属性:
*。kv
...
<SampBoxLayout>:
first_image: first_image # <----
second_image: second_image # <----
orientation: "vertical"
padding: 10
spacing: 10
# ---------- Button FileChooser ----------
BoxLayout:
...
# ---------- Display Images----------
BoxLayout:
orientation: "horizontal"
height: 30
ColoredBackground:
id: first_image # <----
size: self.parent.width, self.parent.height
allow_stretch: True
keep_ratio: False
ColoredBackground:
id: second_image # <----
size: self.parent.width, self.parent.height
allow_stretch: True
keep_ratio: False
*。py
def get_image_one(self):
# Select image file types, returned image should be used as source of Image widget.
Tk().withdraw() # avoids window accompanying tkinter FileChooser
img = askopenfilename(initialdir = "/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("all files","*.*")))
self.first_image.source = img
def get_image_two(self):
Tk().withdraw()
img = askopenfilename(initialdir = "/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("all files","*.*")))
self.first_image.source = img