sclass JTickerView is Swingable {
  settable S coin;
  settable TickerSequence ticker;
  settable AbstractTickerPainter painter;
  settable IImageSurfaceMaker imageSurfaceMaker = -> imageSurfaceWithToolTip();
  settable ImageSurface isTicker;
  settable G22TradingStrategy strategy;
  JSlider timeZoomSlider = jSlider(1, 10, 1);
  ReliableSingleThread rstPaint = rst(l0 repaintImpl);
  
  swappable void makePainter() {
    painter = new TickerGraphPainter;
    painter.w(300*intFromSlider(timeZoomSlider)).h(200);
    painter.ticker(ticker);
    painter.drawPercentLines(false);
    /*painter.horizontalRange(
      transformBetweenDoubleRanges (varTimeZoom get) (zeroToOne) (painter horizontalRangeForTicker ticker)
    zoomedRange <- transformBetweenDoubleRanges (varTimeZoom get) (zeroToOne) (toDoubleRange < ticker timeRange)
    painter verticalRange <
    painter verticalRangeForTicker (ticker subSequenceByTimestamps (lround < zoomedRange start) (lround < zoomedRange end))
    */

    //painter.additionalObjects.add(g -> painter drawTimeGrid(g, 60));

    if (strategy != null)
      for (p : strategy.closedPositions()) {
        painter.positions.add(new TradingPosition()
          .openingTime(p.openingTime())
          .closingTime(p.closingTime())
          .openingPrice(p.openingPrice())
          .closingPrice(p.closingPrice())
          .isLong(p.direction > 0)
          .leverage(iround(p.leverage)));
      }
    //painter addVerticalLine < backTest latestAllowedOpeningTime
  }
  
  void repaintImpl() {
    makePainter();
    isTicker.setImage(painter.render());
  }
  
  cachedVisualize {
    if (isTicker == null) isTicker = imageSurfaceMaker.newImageSurface();
    onChange(timeZoomSlider, rstPaint);
    rstPaint.trigger();
    ret jCenteredSection(str(ticker),
      centerAndSouthWithMargin(
        jscroll_borderless(isTicker),
        withLabel("Time zoom:", timeZoomSlider)
      ));
  }
}