!7

cmodule CombinedCPUTrayIcon > DynBigNumber {
  transient BufferedImage trayImage;
  transient TrayIcon trayIcon; 
  
  switchable S processColor = "ADFF2F"; // green yellow
  switchable S restColor = "6666FF";
  switchable S backgroundColor = "000000";
  switchable int size = goodSystemTrayIconSize().x;
  switchable double interval = 1;
  switchable bool postToServer;
  
  transient double systemLoad;
  transient int systemPercent;
  
  // these are for the process
  transient double loadRelativeToAllCores, recentLoad;
  transient RollingAverage avg = new(5); // =10 seconds
  
  start {
    setDescription("STEFAN'S OS/SYSTEM CPU %");
    setToolTip("Percentage is per core (total: " + numberOfCores()*100 + "%)");
    doEvery(interval, r actualUpdate);
    ownResource(tempTrayIcon(trayIcon = installTrayIcon(
      trayImage = newBufferedImage(size, size, colorFromHex(backgroundColor)),
      "Stefan's OS + System CPU (" + nCores(numberOfCores()) + ")",
      rThread dm_activateOSAndModule)));
    dm_registerAs_direct combinedCPUTrayIcon();
  }
  
  void grabSystemLoad {
    systemLoad = systemCPULoad();
    systemPercent = toIntPercent_ceil(systemLoad*numberOfCores());
    
    if (postToServer)
      dm_postCPULoadToServer(systemPercent);
  }
  
  void actualUpdate {
    grabSystemLoad();
    recentLoad = processCPULoad();
    avg.add(recentLoad);
    loadRelativeToAllCores = avg!;
    setValue(
      toIntPercent_ceil(loadRelativeToAllCores*numberOfCores()) + " / " +
      systemPercent + " %");

    int w = trayImage.getWidth(), h = trayImage.getHeight();
    copyImagePart(trayImage, 1, 0, trayImage, 0, 0, w-1, h);
    int y1 = iround(h*(1 - loadRelativeToAllCores));
    int y2 = min(y1, iround(h*(1 - systemLoad)));
    fillRect(trayImage, w-1, 0, 1, y2, colorFromHex(backgroundColor));
    fillRect(trayImage, w-1, y2, 1, y1-y2, colorFromHex(restColor));
    fillRect(trayImage, w-1, y1, 1, h-y1, colorFromHex(processColor));
    setTrayIconImage(trayIcon, trayImage);
    vmBus_send newCombinedCPUTrayImage(module(), trayImage);
  }
  
  // API
  
  BufferedImage getImage() { ret trayImage; }
}

Began life as a copy of #1020927