!7

cm CropAndJPEGify > DynPrintLogAndEnabled {
  transient FileWatchService watchService;
  transient ReliableSingleThread_Multi<File> rst = dm_rstMulti(me(), lambda1 processFile);
  switchable int width = 1280; // width of right monitor in fact
  switchable bool left;
  
  start {
    ownResource(watchService = new FileWatchService);
    File dir = desktopDir();
    
    watchService.addListener(dir, f -> rst.add(f),
      jdk_watchService_allEventKinds());
    
    print("Watching " + dir);
  }
  
  void processFile(File f) {
    if (!enabled) ret;
    if (!fileExtensionIs(f, ".png")) ret;
    if (contains(fileName(f), "uncropped")
      || fileExists(appendToBaseFileName(f, ".uncropped")))
      ret;
    sleepSeconds(1); // allow file to settle
    if (!fileExists(f)) ret;
    if (left)
      cropToLeftScreenInPlace(f, screenWidth(0));
    else
      cropToRightScreenInPlace(f, width);
    jpegify(f);
  }
}