109 lines
3.3 KiB
Python
109 lines
3.3 KiB
Python
#!/usr/bin/env python3
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# -*- encoding: utf-8 -*-
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import json
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import tkinter
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import traceback
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from io import BytesIO
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from pathlib import Path
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from typing import Optional
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from PIL import Image, ImageTk
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millisamount = 10
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AnyInt = Optional[int]
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class MainApp(tkinter.Tk):
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def __init__(self):
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super().__init__()
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self.geometry('500x500')
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self.known_width = 500
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self.known_height = 500
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self.resizable(width=True, height=True)
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self.photo = Image.new('RGB', (256, 256), (0, 0, 0))
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self.display_photo = self.photo.copy()
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self.image = ImageTk.PhotoImage(self.display_photo)
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self.frame = tkinter.Frame(self)
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self.frame.pack(fill=tkinter.BOTH, expand=tkinter.YES)
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self.panel = tkinter.Label(self.frame)
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self.panel.pack(fill=tkinter.BOTH, expand=tkinter.YES)
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self.panel.bind('<Configure>', self._resize_image)
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self.panel.configure(image=self.image)
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self.update()
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self._resize_image2()
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self.update()
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def _resize_image(self, event):
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self.known_width = event.width
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self.known_height = event.height
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self._resize_image2()
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def _resize_image2(self):
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size_tuple = (self.known_width, self.known_height)
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self.display_photo = self.photo.copy()
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self.display_photo.thumbnail(size_tuple)
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if self.display_photo is None:
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self.display_photo = self.photo
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self.image = ImageTk.PhotoImage(self.display_photo)
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self.panel.configure(image=self.image)
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def update_image(self, image, windowTile=None):
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if windowTile is not None:
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self.winfo_toplevel().title(str(windowTile))
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self.photo = image
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self._resize_image2()
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self.update()
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def updateImage(tk: MainApp, old_fpp_modified: AnyInt):
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try:
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file_path_path = Path('latest_image_download.txt')
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new_fpp_modified = None
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try:
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st = file_path_path.stat()
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new_fpp_modified = st.st_mtime_ns
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except BaseException:
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pass
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tk.after(millisamount, updateImage, tk, new_fpp_modified)
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if old_fpp_modified != new_fpp_modified:
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file_path = None
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info_path = None
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file = None
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info = None
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try:
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fpp = file_path_path.read_text()
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file_path = Path(fpp)
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info_path = Path(fpp+'.json')
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file = file_path.read_bytes()
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info = json.loads(info_path.read_text())
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except BaseException:
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pass
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if file is not None and info is not None:
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try:
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tk.update_image(
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Image.open(BytesIO(file)),
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info.get('url', str(file_path).split('/', 1)[-1])
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)
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except BaseException:
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print()
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print("Exception on entry %r" % file_path)
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traceback.print_exc()
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if (old_fpp_modified is not None and new_fpp_modified is None):
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tk.destroy()
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except BaseException:
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print()
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traceback.print_exc()
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tk.destroy()
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def main():
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tk = MainApp()
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tk.after(1, updateImage, tk, None)
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tk.mainloop()
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if __name__ == '__main__':
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main()
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