Method setPosition

third-party/yoga/src/yoga/node/Node.cpp:282–327

}

void Node::setPosition(
    const Direction direction,
    const float ownerWidth,
    const float ownerHeight) {
  /* Root nodes should be always layouted as LTR, so we don't return negative
   * values. */
  const Direction directionRespectingRoot =
      owner_ != nullptr ? direction : Direction::LTR;
  const FlexDirection mainAxis =
      yoga::resolveDirection(style_.flexDirection(), directionRespectingRoot);
  const FlexDirection crossAxis =
      yoga::resolveCrossDirection(mainAxis, directionRespectingRoot);

  // In the case of position static these are just 0. See:
  // https://www.w3.org/TR/css-position-3/#valdef-position-static
  const float relativePositionMain = relativePosition(
      mainAxis,
      directionRespectingRoot,
      isRow(mainAxis) ? ownerWidth : ownerHeight);
  const float relativePositionCross = relativePosition(
      crossAxis,
      directionRespectingRoot,
      isRow(mainAxis) ? ownerHeight : ownerWidth);

  const auto mainAxisLeadingEdge = inlineStartEdge(mainAxis, direction);
  const auto mainAxisTrailingEdge = inlineEndEdge(mainAxis, direction);
  const auto crossAxisLeadingEdge = inlineStartEdge(crossAxis, direction);
  const auto crossAxisTrailingEdge = inlineEndEdge(crossAxis, direction);

  setLayoutPosition(
      (style_.computeInlineStartMargin(mainAxis, direction, ownerWidth) +
       relativePositionMain),
      mainAxisLeadingEdge);
  setLayoutPosition(
      (style_.computeInlineEndMargin(mainAxis, direction, ownerWidth) +
       relativePositionMain),
      mainAxisTrailingEdge);
  setLayoutPosition(
      (style_.computeInlineStartMargin(crossAxis, direction, ownerWidth) +
       relativePositionCross),
      crossAxisLeadingEdge);
  setLayoutPosition(
      (style_.computeInlineEndMargin(crossAxis, direction, ownerWidth) +
       relativePositionCross),
      crossAxisTrailingEdge);
}

Style::SizeLength Node::processFlexBasis() const {
  Style::SizeLength flexBasis = style_.flexBasis();