quantum5 · November 7, 2017 08:13 · Nov 7, 2017
diff --git a/winbackground.py b/winbackground.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+from __future__ import division
+
+import time
+import os
+import threading
+import subprocess
+
+from wand.image import Image
+from watchdog.events import FileSystemEventHandler
+from watchdog.observers import Observer
+
+BACKGROUND = '/mnt/c/Users/Quantum/AppData/Roaming/Microsoft/Windows/Themes/TranscodedWallpaper'
+RESULT = '/home/quantum/.config/i3/background.png'
+WIDTH = 1600
+HEIGHT = 860
+REAL_HEIGHT = 900
+
+background_dir = os.path.dirname(BACKGROUND)
+debounce = threading.Event()
+
+
+class EventHandler(FileSystemEventHandler):
+    def on_modified(self, event):
+        if event.src_path == BACKGROUND:
+            debounce.set()
+
+
+def update_wallpaper():
+    with Image(filename=BACKGROUND) as img:
+        w, h = img.size
+        scale = max(WIDTH / w, REAL_HEIGHT / h)
+        left = (w * scale - WIDTH) / 2
+        top = (h * scale - REAL_HEIGHT * 2 + HEIGHT) / 2
+        img.resize(int(w * scale), int(h * scale))
+        img.crop(left=int(left), top=int(top), width=WIDTH, height=HEIGHT)
+        img.save(filename=RESULT)
+    subprocess.call(['feh', '--bg-fill', RESULT])
+
+
+def main():
+    handler = EventHandler()
+    observer = Observer()
+    observer.schedule(handler, background_dir)
+    observer.start()
+    update_wallpaper()
+    try:
+        while True:
+            while not debounce.wait(86400):
+                pass
+            debounce.clear()
+            while debounce.wait(0.2):
+                debounce.clear()
+            update_wallpaper()
+    except KeyboardInterrupt:
+        observer.stop()
+    observer.join()
+
+if __name__ == '__main__':
+    main()
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