<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_lr5lgade3rs8v3ude2q8k7ncbe, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
!7

// Note: Don't use db_mainConcepts(), only the module's concepts field

!include early #1033884 // Compact Module Include Gazelle V [dev version]

module GazelleScreenCam {
  !include early #1025212 // +Enabled without visualization
  
  int pixelRows = 128, colors = 8;
  S script, testScreenScript;
  bool animate = true;
  bool horizontalLayout; // flat layout
  int fpsTarget = 20;
  
  WatchTarget watchTarget;
  
  transient ImageSurface isPosterized, isRegions, isTestScreen;
  transient new ScreenCamStream imageStream;
  transient new BWIntegralImageStream integralImages;
  transient new SourceTriggeredStream<BWImage> scaledAndPosterizedImages;
  transient new DoubleFPSCounter fpsCounter;
  transient int fps;
  //transient ScreenSelectorRadioButtons screenSelector;
  transient WatchTargetSelector watchTargetSelector;
  transient new RollingAverage remainingMSPerFrame;
  transient int remainingMS;
  
  transient new FunctionTimings<S> functionTimings;
  
  transient ReliableSingleThread rstRunScript = dm_rst(me(), r _runScript);
  
  transient JGazelleVScriptRunner scriptRunner;
  transient JGazelleVScriptRunner testScreenScriptRunner;
  
  transient Animation animation;
  
  transient BWImage_FastRegions mainScreenRegions;
  
  transient UIURLSystem uiURLs;
  
  // set by host
  transient Concepts concepts;
  
  S uiURL;
  
  transient FileWatchService fileWatcher;
  
  transient SimpleCRUD_v2<Label> labelCRUD;
  transient SimpleCRUD_v2<GalleryImage> imageCRUD;

  transient JGallery gallery;

  transient FlexibleRateTimer screenCamTimer;
  transient SingleComponentPanel scpMain;
  transient JTabbedPane tabs;
  transient bool showRegionsAsOutline = true;
  transient JComponent watchScreenPane;
  transient S screenCamRecognitionOutput;

  start {
    dm_onFieldChange horizontalLayout(
      //r dm_revisualize // deh buggy
      r dm_reload
    );
    
    // non-standalone mode (doesn't work yet)
    if (concepts == null) {
      printWithMS("Starting DB");
      db();
      concepts = db_mainConcepts();
    } else
      assertSame(concepts, db_mainConcepts());

    // make indexes
    indexConceptField(concepts, GalleryImage, "path");
    indexConceptField(concepts, Example, "item");
    
    // update count in tab when tab isn't selected
    onConceptChanges(concepts, -> {
      labelCRUD?.updateEnclosingTabTitle();
      imageCRUD?.updateEnclosingTabTitle();
    });
    
    uiURLs = new UIURLSystem(me(), dm_fieldLiveValue uiURL());
    
    scriptRunner = new JGazelleVScriptRunner(dm_fieldLiveValue script(me()));
    testScreenScriptRunner = new JGazelleVScriptRunner(dm_fieldLiveValue testScreenScript(me()));

    printWithMS("Making image streams");

    imageStream.directlyFeedInto(integralImages);
    
    integralImages.onNewElement(ii ->
      scaledAndPosterizedImages.newElement(
        scaleAndPosterize(ii, new SnPSettings(pixelRows, colors))));
          
    integralImages.onNewElement(r {
      if (shouldRunScript()) rstRunScript.go();
    });

    printWithMS("Almost done");    
          
    scaledAndPosterizedImages.onNewElement(img -> {
      fpsCounter.inc();
      setField(fps := iround(fpsCounter!));
      
      // display before analysis (old)
      // isPosterized?.setImage_thisThread(img);
      
      // find regions
      floodFill(img);
      
      // display after analysis so we can highlight a region
      if (isPosterized != null) {
        var img2 = highlightRegion(img, isPosterized, mainScreenRegions);
        isPosterized.setImage_thisThread(img2);
      }
    });

    printWithMS("Starting screen cam");
    
    ownResource(screenCamTimer = new FlexibleRateTimer(fpsTarget, rEnter {
      if (!enabled) ret;
      watchTargetSelector?.updateScreenCount();
      Timestamp deadline = tsNowPlusMS(1000/fpsTarget);
      if (watchTarget cast WatchScreen)
        imageStream.useScreen(watchTarget.screenNr-1);
      else if (watchTarget cast WatchMouse)
        imageStream.area(mouseArea(watchTarget.width, watchTarget.height));
      imageStream.step();
      long remaining = deadline.minus(tsNow());
      remainingMSPerFrame.add(remaining);
      setField(remainingMS := iround(remainingMSPerFrame!));
    }));
    screenCamTimer.start();
    dm_onFieldChange fpsTarget(-> screenCamTimer.setFrequencyImmediately(fpsTarget));

    printWithMS("Starting dir watcher");
    
    startDirWatcher();
    
    printWithMS("Gathering images from disk");
    for (f : allImageFiles(galleryDir()))
      addToGallery(f);
    printWithMS("Got dem images");
  }
  
  // convert to color & highlight region
  BufferedImage highlightRegion(BWImage image, ImageSurface is, BWImage_FastRegions regions) {
    var pixels = image.getRGBPixels();
    highlightRegion(pixels, is, regions);
    ret bufferedImage(pixels, image.getWidth(), image.getHeight());
  }
  
  // convert to color & highlight region
  void highlightRegion(int[] pixels, ImageSurface is, BWImage_FastRegions regions) {
    var mouse = is.mousePosition;
    int color = 0xFF008000, holeColor = 0xFFFFB266;
    if (mouse != null && regions != null) {
      int iHighlightedRegion = regions.regionAt(mouse);

      if (showRegionsAsOutline) {
        RegionBorder_innerPoints x = new(regions, iHighlightedRegion);
        new BoolVar hole;
        x.onNewTrace(isHole -> hole.set(isHole));
        x.onFoundPoint(p ->
          pixels[p.y*regions.w+p.x] = hole! ? holeColor : color);
        x.run();
      } else
        regions.markRegionInPixelArray(pixels, iHighlightedRegion, color);
    }
  }
  
  void startDirWatcher {
    fileWatcher = new FileWatchService;
    fileWatcher.addRecursiveListener(picturesDir(), file -> {
      if (!isImageFile(file)) ret;
      addToGallery(file);
    });
  }
  
  ImageSurface stdImageSurface() {
    ret pixelatedImageSurface().setAutoZoomToDisplay(true).repaintInThread(false);
  }
  
  visualize {
    gallery = new JGallery;
    var galleryComponent = gallery.visualize();

    new AWTOnConceptChanges(concepts, galleryComponent, -> {
      gallery.setImageFiles(map(list(concepts, GalleryImage), i -> i.path));
    }).install();
    
    /*screenSelector = new ScreenSelectorRadioButtons(dm_fieldLiveValue screenNr());
    screenSelector.compactLayout(true);
    screenSelector.hideIfOnlyOne(true);
    screenSelector.screenLabel("");*/
    isPosterized = stdImageSurface();
    
    //isRegions = stdImageSurface();
    isTestScreen = stdImageSurface();
    
    // when test screen is visible, do the animation
    awtEvery(isTestScreen, 1000/20, r stepAnimation);
    
    var jSpeedInfo = dm_transientCalculatedToolTip speedInfo_long(rightAlignLabel(dm_transientCalculatedLabel speedInfo()));
    
    //print("Labels: " + list(concepts, Label));
    labelCRUD = new SimpleCRUD_v2(concepts, Label);
    labelCRUD.hideFields("globalID");
    labelCRUD.addCountToEnclosingTab(true);
    labelCRUD.itemToMap_inner2 = l
      -> litorderedmap(
        "Name" := l.name,
        "# Examples" := n2(countConcepts(concepts, Example, label := l)));
    
    imageCRUD = new SimpleCRUD_v2(concepts, GalleryImage);
    imageCRUD.addCountToEnclosingTab(true);
    imageCRUD.itemToMap_inner2 = img
      -> litorderedmap(
        "File" := fileName(img.path),
        "Folder" := dirPath(img.path));
    
    // main visual

    var studyPanel = new StudyPanel;

    watchTargetSelector = new WatchTargetSelector;

    watchScreenPane = borderlessScrollPane(jHigherScrollPane(
      jfullcenter(vstack(
        withLeftAndRightMargin(hstack(
          dm_rcheckBox enabled("Watch"),
          watchTargetSelector.visualize(),
          jlabel(" in "),
          withLabelToTheRight("colors @ ", dm_spinner colors(2, 256)),
          withLabelToTheRight("p", dm_powersOfTwoSpinner pixelRows(512)),
          , /* speed info can also go here */
        )),
        verticalStrut(2),
        withSideMargins(centerAndEastWithMargin(
          dm_fieldLabel screenCamRecognitionOutput(),
          jSpeedInfo)),
      ))));

    tabs = scrollingTabs(jTopOrLeftTabs(horizontalLayout,
      "Screen Cam" := screenCamPanel(),
      /*WithToolTip("Regions", "Visualize regions detected on screen")
        := jscroll_centered_borderless(isRegions),*/
      WithToolTip("Study", "Here you can analyze gallery images")
        := withTopAndBottomMargin(studyPanel.visualize()),
      WithToolTip("Pretty Gallery", "Gallery view with preview images")
        := withBottomMargin(galleryComponent),
      WithToolTip("Powerful Gallery", "Gallery view with more functions (delete etc)")
        := wrapCRUD(imageCRUD),
      WithToolTip("Labels", "Manage labels (image markers)")
        := wrapCRUD(labelCRUD),
      WithToolTip("Script", "Run a Gazelle V script")
        := withBottomMargin(scriptRunner.scriptAndResultPanel()),
    ));

    var cbEnabled = toolTip("Switch screen cam on or off", dm_checkBox enabled(""));
    var lblScreenCam = setToolTip("Show scaled down and color-reduced screen image",
      jlabel("Screen Cam"));
    tabComponentClickFixer(lblScreenCam);
    var screenCamTab = hstackWithSpacing(cbEnabled, lblScreenCam);
    
    replaceTabTitleComponent(tabs, "Screen Cam", screenCamTab);
    
    // for tab titles
    labelCRUD.update();
    imageCRUD.update();
    
    initUIURLs();

    var urlBar = uiURLs.urlBar();
    setToolTip(uiURLs.comboBox, "UI navigation system (partially populated)");

    scpMain = singleComponentPanel();
    uiURLs.scp(scpMain);

    uiURLs.showUIURL("Main Tabs");
              
    var vis = northAndCenter(
      withSideAndTopMargin(urlBar),
      //centerAndSouthOrEast(horizontalLayout,
        /*withBottomMargin*/(scpMain),
      /*  watchScreenPane
      )*/
    );
    setHorizontalMarginForAllButtons(vis, 4);
    ret vis;
  }

  JComponent screenCamPanel() {
    ret centerAndSouthOrEast(horizontalLayout,
      withTools(isPosterized),
      watchScreenPane);
  }
  
  S speedInfo() {
    ret "FPS " + fps + " idle " + remainingMS + " ms";
  }
  
  S speedInfo_long() {
    ret "Screen cam running at " + nFrames(fps) + "/second. " + n2(remainingMS) + " ms remaining per frame in first core"
      + " (of targeted " + fpsTarget + " FPS)";
  }
  
  void floodFill(BWImage img) {
    BWImage_FastRegions ff = new(img);
    //ff.tolerance(0);
    ff.collectBounds();
    functionTimings.time("Regions", ff);
    mainScreenRegions = ff;
    if (isRegions != null && isRegions.isShowing_quick()) {
      //print("Showing regions image");
      isRegions.setImage_thisThread(ff.regionsImage());
    }
    S text = nRegions(ff.regionCount());
    setField(screenCamRecognitionOutput := text);
    setEnclosingTabTitle(isRegions, text);
  }
  
  bool useErrorHandling() { false; }
  
  S renderFunctionTimings() {
    ret lines(ciSorted(map(functionTimings!, (f, avg) ->
      firstToUpper(f) + ": " + n2(iround(nsToMicroseconds(avg!))) + " " + microSymbol() + "s (" + n2(iround(avg.n())) + ")")));
  }
  
  transient long _runScript_idx;

  void _runScript() {
    long n = integralImages.elementCount();
    if (n > _runScript_idx) {
      _runScript_idx = n;

      scriptRunner.parseAndRunOn(integralImages!);
    }
  }
  
  bool shouldRunScript() {
    ret isShowing(scriptRunner.scpScriptResult);
  }
  
  void stepAnimation {
    if (!animate) ret;
    if (animation == null) {
      animation = new AnimatedLine;
      animation.start();
    }
    animation.nextFrame();
    var img = whiteImage(animation.w, animation.h);
    animation.setGraphics(createGraphics(img));
    animation.paint();
    isTestScreen?.setImage(img);
    
    var ii = bwIntegralImage_withMeta(img);
    testScreenScriptRunner.parseAndRunOn(ii);
  }
  
  JComponent testScreenPanel() {
    ret centerAndSouthWithMargin(
      hsplit(
        northAndCenterWithMargin(centerAndEastWithMargin(
          jlabel("Input"), dm_fieldCheckBox animate()),
        jscroll_centered_borderless(isTestScreen)),
        
        northAndCenterWithMargin(centerAndEastWithMargin(
          jlabel("Output"), testScreenScriptRunner.lblScore),
        testScreenScriptRunner.scpScriptResult)
      ),
        
      testScreenScriptRunner.scriptInputField()
    );
  }
  
  L popDownItems() {
    ret ll(jCheckBoxMenuItem_dyn("Horizontal Layout",
      -> horizontalLayout,
      b -> setField(horizontalLayout := b)));
  }
  
  void unvisualize {} // don't zero transient component fields
  
  void resetTimings { functionTimings.reset(); }
  
  // add tool side bar to image surface
  JComponent withTools(ImageSurface is) {
    new ImageSurface_PositionToolTip(is);
    ret centerAndEastWithMargin(jscroll_centered_borderless(is), vstackWithSpacing(3,
      jimageButtonScaledToWidth(16, #1103054, "Save screenshot in gallery", rThread saveScreenshotToGallery),
    ));
  }
  
  class WatchTargetSelector {
    JComboBox<WatchTarget> cb = jComboBox();
    int screenCount;
    
    visualize {
      updateList();
      print("Selecting watchTarget: " + watchTarget);
      selectItem(cb, watchTarget);
      main onChange(cb, watchTarget -> {
        setField(+watchTarget);
        print("Chose watchTarget: " + GazelleScreenCam.this.watchTarget);
      });
      ret cb;
    }
    
    void updateScreenCount() {
      if (screenCount != screenCount())
        updateList();
    }
    
    void updateList() swing {
      setComboBoxItems(cb, makeWatchTargets());
    }
    
    L<WatchTarget> makeWatchTargets() {
      ret flattenToList(
        countIteratorAsList_incl(1, screenCount = screenCount(), i -> WatchScreen(i)),
        new WatchMouse
      );
    }
  }

  class SnPSelector {
    settable new SnPSettings settings;
    
    event change;

    visualize {
      var colors = jspinner(settings.colors, 2, 256);
      main onChange(colors, -> {
        settings.colors = intFromSpinner(colors);
        change();
      });
      
      var pixelRows = jPowersOfTwoSpinner(512, settings.pixelRows);
      main onChange(pixelRows, -> {
        settings.pixelRows = intFromSpinner(pixelRows);
        change();
      });
      
      ret hstack(
        colors,
        jlabel(" colors @ "),
        pixelRows,
        jlabel(" p"));
    }
  }
  
  JComponent wrapCRUD(SimpleCRUD_v2 crud) {
    ret crud == null ?: withTopAndBottomMargin(jRaisedSection(withMargin(crud.make_dontStartBots())));
  }
  
  File galleryDir() {
    ret picturesDir(gazelle22_imagesSubDirName());
  }
  
  void saveScreenshotToGallery enter {
    var img = imageStream!;
    saveImageWithCounter(galleryDir(), "Screenshot", img);
  }
  
  GalleryImage addToGallery(File imgFile) {
    if (!isImageFile(imgFile)) null;
    var img = uniq(concepts, GalleryImage, path := imgFile);
    //printVars("addToGallery", +imgFile, +img);
    ret img;
  }

  BWImage scaleAndPosterize(IBWIntegralImage ii, SnPSettings settings) {
    ret posterizeBWImage_withMeta(settings.colors,
      scaledBWImageFromBWIntegralImage_withMeta_height(settings.pixelRows, ii));
  }

  class StudyPanel {
    new SnPSelector snpSelector;
    GalleryImage image;
    BufferedImage originalImage;
    ImageSurface isOriginal = stdImageSurface();
    ImageSurface isOriginalWithRegions = stdImageSurface();
    ImageSurface isPosterized = stdImageSurface();
    SingleComponentPanel scp = singleComponentPanel();
    SingleComponentPanel analysisPanel = singleComponentPanel();
    SingleComponentPanel scpExampleCRUD = singleComponentPanel();
    ConceptsComboBox<GalleryImage> cbImage = new(concepts, GalleryImage);
    ImageToRegions itr;
    int iSelectedRegion;
    SimpleCRUD_v2<SavedRegion> regionCRUD;
    SimpleCRUD_v2<Example> exampleCRUD;

    *() {
      //cbImage.sortTheList = l -> sortConceptsByIDDesc(l);
      cbImage.sortTheList = l -> sortedByComparator(l, (a, b)
        -> cmpAlphanumIC(fileName(a.path), fileName(b.path)));

      main onChangeAndNow(cbImage, img -> dm_q(me(), r {
        image = img;
        scp.setComponent(studyImagePanel());
      }));

      isPosterized.removeAllTools();
      isPosterized.onMousePositionChanged(r_dm_q(me(), l0 regionUpdate));

      imageSurfaceOnLeftMouseDown(isPosterized, pt -> dm_q(me(), r { chooseRegionAt(pt) }));

      snpSelector.onChange(r_dm_q(me(), l0 runSnP));
    }

    void chooseRegionAt(Pt p) {
      if (itr == null) ret;
      iSelectedRegion = itr.regions.regionAt(p);

      if (iSelectedRegion > 0) {
        var savedRegion = uniq_returnIfNew(concepts, SavedRegion,
          +image,
          snpSettings := snpSelector.settings.cloneMe(),
          regionIndex := iSelectedRegion);

        // it's new, add values
        if (savedRegion != null) {
          print("Saved new region!");
          var bitMatrix = toScanlineBitMatrix(itr.regions.regionBitMatrix(iSelectedRegion));
          cset(savedRegion, +bitMatrix);
        }
      }
      
      regionUpdate();
    }

    // load new image
    JComponent studyImagePanel() { 
      if (image == null) null;
      originalImage = loadImage2(image.path);
      if (originalImage == null) ret jcenteredlabel("Image not found");

      isOriginal.setImage(originalImage);
      isOriginalWithRegions.setImage(originalImage);

      iSelectedRegion = 0;
      itr = new ImageToRegions(originalImage, snpSelector.settings);
      runSnP();

      regionCRUD = new SimpleCRUD_v2<SavedRegion>(concepts, SavedRegion);
      regionCRUD.addFilter(+image);
      regionCRUD
        .showSearchBar(false)
        .showAddButton(false)
        .showEditButton(false);
        
      regionCRUD.itemToMap_inner2 = region -> {
        var examples = conceptsWhere(concepts, Example, item := region);
        
        ret litorderedmap(
          "Pixels" := region.bitMatrix == null ? "-" : n2(region.bitMatrix.pixelCount()),
          //"Shape" := "TODO",
          "Labels" := joinWithComma(map(examples, e -> e.label)),

          // TODO: scale using snpsettings
          "Position" := region.bitMatrix == null ? "-" : region.bitMatrix.boundingBoxOfTrueBits());
      };

      var regionCRUDComponent = regionCRUD.make_dontStartBots();
      regionCRUD.onSelectionChanged(l0 updateExampleCRUD);

      ret hsplit(
        jtabs(
          "Image" := jscroll_centered_borderless(isOriginal),
          "Image + regions" := jscroll_centered_borderless(isOriginalWithRegions),
          "Posterized" := jscroll_centered_borderless(isPosterized),
        ),
        vsplit(
          analysisPanel,
          hsplit(
            jCenteredSection("Saved regions", regionCRUDComponent),
            scpExampleCRUD)
          ));
    }

    void runSnP {
      if (itr == null) ret;
      itr.run();
      regionUpdate();
    }

    void regionUpdate {
      if (itr == null) ret;

      var pixels = itr.posterized.getRGBPixels();
      
      // hovering region marked green
      highlightRegion(pixels, isPosterized, itr.regions);

      // selected region marked blue
      itr.regions.markRegionInPixelArray(pixels, iSelectedRegion, 0xFFADD8E6);

      var highlighted = bufferedImage(pixels, itr.posterized.getWidth(), itr.posterized.getHeight());

      isPosterized.setImage(highlighted);
      isPosterized.performAutoZoom(); // seems to be necessary for some reason

      updateAnalysis();
    }

    void updateAnalysis {
      new LS lines;
      lines.add(nRegions(itr.regions.regionCount()));
      lines.add("Selected region: " + iSelectedRegion);
      S text = lines_rtrim(lines);
      analysisPanel.setComponent(jscroll(jMultiLineLabel(text)));
    }

    void updateExampleCRUD {
      var region = regionCRUD.selected();
      if (region == null) ret with scpExampleCRUD.set(null);
      
      exampleCRUD = new SimpleCRUD_v2<Example>(concepts, Example);
      exampleCRUD.entityName = -> "label for region";
      exampleCRUD.addFilter(item := region);
      exampleCRUD.showSearchBar(false);
      scpExampleCRUD.set(jCenteredSection("Labels for region",
        exampleCRUD.make_dontStartBots()));
    }

    void importImage {
      new JFileChooser fc;
      if (fc.showOpenDialog(cbImage) == JFileChooser.APPROVE_OPTION) {
        File file = fc.getSelectedFile().getAbsoluteFile();
        if (!isImageFile(file)) ret with infoMessage("Not an image file");
        var img = addToGallery(file);
        waitUntil(250, 5.0, -> comboBoxContainsItem(cbImage, img));
        setSelectedItem(cbImage, img);
      }
    }

    visual
      jRaisedSection(northAndCenterWithMargins(
        centerAndEast(withLabel("Study", cbImage),
          hstack(
            jlabel(" in "),
            snpSelector.visualize(),
            horizontalStrut(10),
            jPopDownButton_noText(
              "Import image...", rThreadEnter importImage,
            ),
            )),
        scp));
  } // end of StudyPanel

  // S&P, then regions
  class ImageToRegions {
    BufferedImage inputImage;
    BWIntegralImage ii;
    SnPSettings snpSettings;
    BWImage posterized;
    BWImage_FastRegions regions;

    *(BufferedImage *inputImage, SnPSettings *snpSettings) {}

    run {
      ii = bwIntegralImage_withMeta(inputImage);
      posterized = scaleAndPosterize(ii, snpSettings);
      regions = new BWImage_FastRegions(posterized);
      regions.collectBounds();
      functionTimings.time("Regions", regions);
    }
  }

  void initUIURLs {
    uiURLs.put("Main Tabs", ->
      horizontalLayout ? withMargin(tabs) : withSideMargin(tabs));
      
    uiURLs.put("Screen Cam FPS", -> jFullCenter(
      vstackWithSpacing(
        jCenteredLabel("FPS target (frames per second) for screen cam:"),
        jFullCenter(dm_spinner fpsTarget(1, 60)),
        jCenteredLabel("(You can lower this value if you have a slower computer)"))));

    uiURLs.put("Timings", -> {
      JTextArea taTimings = jTextArea_noUndo();
      awtEveryAndNow(taTimings, .5, r {
        setText(taTimings, renderFunctionTimings())
      });
      ret withRightAlignedButtons(taTimings,
        Reset := r resetTimings);
    });

    uiURLs.put("Test Screen" := -> testScreenPanel());
      
    // add more ui urls here
  }
} // end of module

concept Label > ConceptWithGlobalID {
  S name;
  //new RefL examples;
  
  toString { ret /*"Label " +*/ name; }
}

concept GalleryImage {
  File path;

  toString { ret /*"[" + id + "] " +*/ fileName(path); }
}

concept SavedRegion {
  new Ref image; // e.g. a GalleryImage
  SnPSettings snpSettings;
  int regionIndex; // region number relative to snpSettings
  //Rect bounds; // get it from bitMatrix instead
  ScanlineBitMatrix bitMatrix;
  //new RefL<Label> labels;
}

concept Example {
  new Ref<Label> label;
  new Ref item; // e.g. a SavedRegion
  double confidence = 1;
}

concept IfThenTheory {
  new Ref if_;
  new Ref then;
}

sclass WatchTarget {}

// screenNr: 1 = screen 1 etc
srecord WatchScreen(int screenNr) > WatchTarget {
  toString { ret "Screen " + screenNr; }
}

srecord WatchMouse(int width, int height) > WatchTarget {
  WatchMouse() {
    height = 256;
    width = iround(height*16.0/9);
  }
  
  toString { ret "Mouse"; }
}

// SnP = Scale and Posterize
srecord SnPSettings(int pixelRows, int colors) {
  SnPSettings() { pixelRows = 128; colors = 8; }

  SnPSettings cloneMe() { ret shallowClone(this); }
}

/*asclass RegionPaintMode {
}

sclass RegionPaintMode_Normal > RegionPaintMode {
}

sclass RegionPaintMode_Outline > RegionPaintMode {
}*/