Function getAdjustedSizes

packages/utils/src/functions.ts:332–363

(
  data: SizeAdjustmentData | SizeAdjustmentDataWithoutWidth | SizeAdjustmentDataWithoutHeight,
  type: SizeAdjustmentType = SIZE_ADJUSTMENT_TYPE_CONTAIN,
)

 * @returns {object} Returns the result sizes.
 */
export function getAdjustedSizes(
  data: SizeAdjustmentData | SizeAdjustmentDataWithoutWidth | SizeAdjustmentDataWithoutHeight,
  type: SizeAdjustmentType = SIZE_ADJUSTMENT_TYPE_CONTAIN,
): {
    width: number;
    height: number;
  } {
  const { aspectRatio } = data;
  let { width, height } = data as SizeAdjustmentData;
  const isValidWidth = isPositiveNumber(width);
  const isValidHeight = isPositiveNumber(height);

  if (isValidWidth && isValidHeight) {
    const adjustedWidth = height * aspectRatio;

    if ((type === SIZE_ADJUSTMENT_TYPE_CONTAIN && adjustedWidth > width)
      || (type === SIZE_ADJUSTMENT_TYPE_COVER && adjustedWidth < width)) {
      height = width / aspectRatio;
    } else {
      width = height * aspectRatio;
    }
  } else if (isValidWidth) {
    height = width / aspectRatio;
  } else if (isValidHeight) {
    width = height * aspectRatio;
  }

  return {
    width,
    height,
  };
}

/**
 * Multiply multiple matrices.