update()

in Hands-on lab/lab-files/starter-project/NorthwindMVC/wwwroot/lib/Chart.js/chart.js [2243:2302]

• 60 lines of code
• 7 McCabe index (conditional complexity)

  update(chart, width, height, minPadding) {
    if (!chart) {
      return;
    }
    const padding = toPadding(chart.options.layout.padding);
    const availableWidth = Math.max(width - padding.width, 0);
    const availableHeight = Math.max(height - padding.height, 0);
    const boxes = buildLayoutBoxes(chart.boxes);
    const verticalBoxes = boxes.vertical;
    const horizontalBoxes = boxes.horizontal;
    each(chart.boxes, box => {
      if (typeof box.beforeLayout === 'function') {
        box.beforeLayout();
      }
    });
    const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) =>
      wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;
    const params = Object.freeze({
      outerWidth: width,
      outerHeight: height,
      padding,
      availableWidth,
      availableHeight,
      vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount,
      hBoxMaxHeight: availableHeight / 2
    });
    const maxPadding = Object.assign({}, padding);
    updateMaxPadding(maxPadding, toPadding(minPadding));
    const chartArea = Object.assign({
      maxPadding,
      w: availableWidth,
      h: availableHeight,
      x: padding.left,
      y: padding.top
    }, padding);
    const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);
    fitBoxes(boxes.fullSize, chartArea, params, stacks);
    fitBoxes(verticalBoxes, chartArea, params, stacks);
    if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) {
      fitBoxes(verticalBoxes, chartArea, params, stacks);
    }
    handleMaxPadding(chartArea);
    placeBoxes(boxes.leftAndTop, chartArea, params, stacks);
    chartArea.x += chartArea.w;
    chartArea.y += chartArea.h;
    placeBoxes(boxes.rightAndBottom, chartArea, params, stacks);
    chart.chartArea = {
      left: chartArea.left,
      top: chartArea.top,
      right: chartArea.left + chartArea.w,
      bottom: chartArea.top + chartArea.h,
      height: chartArea.h,
      width: chartArea.w,
    };
    each(boxes.chartArea, (layout) => {
      const box = layout.box;
      Object.assign(box, chart.chartArea);
      box.update(chartArea.w, chartArea.h);
    });
  }