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need latest onSelectedItem.

!include early #1033506 // Compact Module Include Gazelle V

module GazelleV > DynPrintLogAndEnabled {

  /*switchable int x1;

  switchable int y1;

  switchable int w = screenWidth();

  switchable int h = screenHeight();*/

  switchable double maxFPS = 10;

  switchable int previewWidth = 200;

  switchable double statsEvery = 5;

  switchable volatile bool brokenMethod;

  int lookAtScreen;

  S previewMode;

  int gridRows = 20;

  bool scaleDownPreviewImage;

  int previewPosterization = 256;

  S uiURL = "Home";

  //bool deepCompression;

  PersistableThrowable lastProcessingError;

  transient WithTimestamp<OKOrError<BufferedImage>> lastScreen;

  transient new Average screenShotTime;

  transient new Average iiTime;

  transient Timestamp loopStarted;

  transient Sleeping screenShotCountdown;

  transient long screenShotCountdownTotalSleepTime;

  //transient ImageSurface imageSurface;

  transient IIImageSurface imageSurface;

  transient Throwable currentProcessingError;

  transient JButton popDownButton;

  transient JComponent topControls;

  transient long screenShotsTaken;

  transient double fps;

  transient Compression ongoingCompression, completedCompression;

  transient S longTermCompressionProbability;

  transient S longTermCompressionScore;

  transient JComponent topControls2;

  transient JTabbedPane tabs;

  transient ThreadPool threadPool;

  transient SingleComponentPanel mainArea;

  // key:   ui URL

  // value: component maker

  transient Map<S, IF0<JComponent>> uiMap = syncCIMap();

  // ping source for everything we do in the background, including

  // analyzing current screen.

  // normally limited to 50% of one core.

  transient PingSource backgroundPingSource;

  transient OnOffOscillator onOffOscillator;

  Rect area() {

    ret screenBounds(min(lookAtScreen, screenCount()-1));

  }

  class Compression {

    settable BufferedImage image;

    settable BWIntegralImage ii;

    CompressionSearch_AnyType search;

    int baseLineLength; // length of trivial compression

    GridCodec1 codec;

    double compressionPercentage;

    S score() {

      var submission = search?.bestSubmission();

      Int compressedSize = or(submission.compressedSize(), baseLineLength);

      compressionPercentage = 100-doubleRatio(compressedSize, baseLineLength)*100;

      ret iround(compressionPercentage) + "%";

    }

    IProbabilisticScheduler scheduler() {

      ret search?.scheduler();

    }

    S probability() {

      var scheduler = scheduler();

      if (scheduler == null) ret "-";

      var prob = scheduler.lastExecutedProbability();

      ret formatDouble(prob, 3);

    }

    event compressionDone;

    run {

      int lHex = pixelCount(image)*8;

      baseLineLength = calculateLengthOfFunctionCall imageFromHex(lHex+2);

      print(+baseLineLength);

      codec = new GridCodec1(image);

      codec.rows = gridRows;

      search = codec.forward();

      //showImage(codec.renderCellsLinearly());

      repeat 60 {

        stepForNSeconds(1, search);

        //print(stepCount := search.scheduler().stepCount());

        setFields(

          longTermCompressionProbability := probability(),

          longTermCompressionScore := score());

      }

      try {

        compressionDone();

        L<IJavaExpr> cellCompressions = codec.strat.codeForElements();

        //showText("Compression", lines(map shorten_str(cellCompressions)));

        /*S code = str(codec.winnerCode());

        S name = "Screenshot " + ymdMinusHMS();

        File f = makeFileNameUnique_beforeExtension(

          javaxDataDir("Compressed Screenshots/" + name + ".javax"));

        saveTextFile(f, code);

        printFileInfo(f);          

        saveGZTextFile(f = replaceExtension(f, ".jgz"), code);

        printFileInfo(f);*/

        /*

        print("Evaling " + nChars(code));

        //LL<Int> lol = cast dm_javaEval(code);

        BufferedImage restored = cast dm_javaEval(code);

        assertImagesIdentical(restored, image);

        print("Image restored!");

        dm_showImage("Restored from " + nChars(code), restored);

        */

      } catch e { printStackTrace(e); }

    }

    void drawOverlay(ImageSurface is, Graphics2D g) pcall {

      codec.drawOverlay(is, g);

    }

    int gridCols() { ret widthForHeight(ii.getWidth(), ii.getHeight(), gridRows); }

  } // end of Compression

  int gridCols(MakesBufferedImage ii) { ret widthForHeight(ii.getWidth(), ii.getHeight(), gridRows); }

  start {

    if (threadPool == null) threadPool = maxThreadPool();

    backgroundPingSource = new PingSource(threadPool, "Background");

    onOffOscillator = new OnOffOscillator(backgroundPingSource);

    ownResource(onOffOscillator);

    onOffOscillator.start();

    componentFieldsToKeep = litset("tabs");

    dm_registerAs_direct gazelleV();

    dm_watchField enabled(r { if (enabled) dm_reload(); });

    // TODO: react to event sent by OS

    dm_doEvery(1.0, r {

      if (dm_moduleIsPoppedOut()) adjustUIForPoppedOutWindow();

    });

    print("Screen bounds: " + allScreenBounds());

    initUIMap();

    // We are making some UI elements even if the module is hidden

    // because that's easier.

    tabs = jtabs(

      "Log", super.visualize(),

      "Local Data", jcenteredlabel("TODO"));

    dm_doEvery(min(statsEvery, 10.0), statsEvery, r { if (enabled) printStats(); });

    loopStarted = tsNow();

    shootAndAnalyze();

  }

  void shootAndAnalyze {

    backgroundPingSource.do(r shootAndAnalyze_impl);

  }

  void shootAndAnalyze_impl enter {

    if (!enabled) ret;

    var targetTime = tsNow().plus(1.0/maxFPS);

    long time = nanoTime();

    try {

      lastScreen = withTimestamp(okOrError(-> screenshot(area())));

      ++screenShotsTaken;

      setField(fps := doubleRatio(screenShotsTaken, elapsedSeconds(loopStarted)));

      screenShotTime.add(nanosToSeconds(nanoTime()-time));

      time = nanoTime();

      ping();

      if (lastScreen->isOK()) {

        var img = lastScreen!!;

        var ii = BWIntegralImage(img);

        //var ii = BWIntegralImage_luminosity(lastScreen!!);

        iiTime.add(nanosToSeconds(nanoTime()-time));

        if (!deepCompression())

          showPreview(ii, null);

        else

          startCompression(ii);

      }

      cpuTotal();

      currentProcessingError = null;

    } catch print e {

      setField(lastProcessingError := currentProcessingError = e);

      //sleepSeconds(60); // errors in processing are no good

    }

    screenShotCountdown = sleeper().doLater(targetTime, r shootAndAnalyze);

    screenShotCountdownTotalSleepTime += screenShotCountdown.remainingMS();

  }

  bool deepCompression() { ret !scaleDownPreviewImage; }

  void showPreview(BWIntegralImage ii, Compression completedCompression) {

    IBWIntegralImage ii2 = ii;

    if (scaleDownPreviewImage) {

      ii2 = ScaledIBWIntegralImage(gridCols(ii2), gridRows, ii2);

      ii2 = TruncatedIBWIntegralImage(ii2);

      if (previewPosterization < 256)

        imageSurface?.setImage(posterizeIBWImage(previewPosterization, ii2));

      else

        imageSurface?.setImage(ii2);

      imageSurface.setOverlay(null);

    } else {

      imageSurface?.setImage(completedCompression.ii, completedCompression.image);

      if (completedCompression != null)

        imageSurface.setOverlay(g -> completedCompression.drawOverlay(imageSurface, g));

    }

  }

  void startCompression(BWIntegralImage ii) {

    if (ongoingCompression == null) {

      ping();

      ongoingCompression = new Compression()

        .image(lastScreen!!)

        .ii(ii);

      ongoingCompression.onCompressionDone(-> {

        completedCompression = ongoingCompression;

        ongoingCompression = null;

        showPreview(ii, completedCompression);

      });

      ongoingCompression.run();

    }

  }

  void printStats() { print(stats()); }

  S stats() {

    var screen = lastScreen?!;

    ret formatColonProperties_noNulls(

      "Monitored area", area(),

      "Error", screen?.getError(),

      "Last screenshot taken", lastScreen?.timeStamp(),

      "Average time to take a screenshot", screenShotTime,

      "Average time to make integral image", iiTime,

      "Capacity left in first core", percentRatioStrOneDigit(freeInCore()),

      "Total CPU used", cpuTotal(),

    );

  }

  S cpuTotal() {

    ret setFieldAndReturn(cpuTotal := percentRatioStrOneDigit((1-freeInCore())/numberOfCores()));

  }

  double freeInCore() {

    ret ratio(toSeconds(screenShotCountdownTotalSleepTime),

      elapsedSeconds(loopStarted));

  }

  replace jSection with jCenteredSection.  

  {}

  visualize {

    imageSurface = new IIImageSurface;

    setDoubleBuffered(imageSurface, true);

    imageSurface.setPixelated(true);

    imageSurface.noAlpha = true;

    ret northAndCenterWithMargin(

      withMargin(withLabel("Show",

        comboBoxAndButton(

          onSelectedItem(

            bindComboBoxToLiveValue(centerComboBox(autoComboBox(uiURL, cloneKeys(uiMap))), dm_fieldLiveValue uiURL()),

            url -> showUIURL(url)

          ),

          "Go", url -> showUIURL(url)))),

      mainArea = singleComponentPanel(renderUIUrl(uiURL)));

  }

  BufferedImage lastScreenImage() { ret getVar(getVar(lastScreen)); }

  void adjustUIForPoppedOutWindow swing {

    if (popDownButton == null) {

      Window window = cast getWindow(dm_vis());

      var popBackInButton = findButton(window, "Pop Back In");

      var parent = getParent(popBackInButton);

      print(+parent);

      removeFromParent(parent); // hide controls

      popDownButton = jPopDownButton_noText(

        "Pop Back In", r { dm_popInModule(me()) },

        jCheckBoxMenuItem("Always On Top", isAlwaysOnTop(window),

          rEnter dm_toggleAlwaysOnTop),

      );

      addControl(popDownButton);      

    }

  }

  public bool useErrorHandling() { false; }

  JComponent renderUIUrl aka renderUIURL aka uiGet(S url) {

    var maker = uiMap.get(url);

    var component = callF(maker);

    if (component != null) ret component;

    ret jCenteredLabel("URL not found: " + url);

  }

  void showUIURL(S url) enter {

    url = trim(url);

    setComponent(mainArea, renderUIUrl(url));

  }

  <A extends JComponent> A uiMapPut(S url, IF0<A> maker) {

    uiMap.put(url, -> maker!);

    ret maker!;

  }

  void uiPut(S url, IF0<JComponent> maker) {

    uiMap.put(url, maker);

  }

  void initUIMap {

    uiPut("FPS", -> jSection("FPS", dm_calculatedCenteredLabel(() -> iround(fps))));

    uiPut("Screen Selector", -> {    

      var screenSelectors = jRadioButtons(

        countIteratorAsList(screenCount(),

          i -> "Screen " + (i+1)));

      selectRadioButton(screenSelectors, lookAtScreen);

      onRadioButtonChange(screenSelectors, i -> { setField(lookAtScreen := i); });

      ret jline(buttonsInGroup(screenSelectors));

    });

    uiPut("Screenshot with controls", -> northAndCenterWithMargin(

      topControls2 = /*jflowCenter*/ jPanel(new WrapLayout, flattenList2(

        dm_checkBox enabled(),

        getChildren(renderUIURL("Screen Selector")),

        dm_spinnerWithLabel gridRows("Rows", 1, 500),

        dm_checkBox("Scale down", "scaleDownPreviewImage"),

        dm_spinnerWithLabel previewPosterization("Posterize", 2, 256)

      )),

      jscroll_center(imageSurface)));

    uiPut("Enabled", -> dm_checkBox enabled());

    uiPut("Home", ->

      hsplit(northAndCenterWithMargin(

        topControls = hgrid(

          renderUIUrl("FPS"),

          jSection("Compression", dm_centeredFieldLabel longTermCompressionScore()),

          //jSection("Probability", dm_centeredFieldLabel longTermCompressionProbability()),

          jSection("CPU (" + numberOfCores() + ")", dm_centeredFieldLabel cpuTotal())

        ),

        tabs),

        renderUIUrl("Screenshot with controls")

      ));

  }

} // end of module