performPaint method

@override void performPaint(PaintingContext context, Offset offset)

RenderLayoutBox real paint things after basiclly paint box model. Override which to paint layout or intrinsic things. Used by RenderReplaced, RenderFlowLayout, RenderFlexLayout.

Implementation

@override
void performPaint(PaintingContext context, Offset offset) {
  for (int i = 0; i < paintingOrder.length; i++) {
    RenderObject child = paintingOrder[i];
    // Don't paint placeholder of positioned element.
    if (child is! RenderPositionPlaceholder) {
      late DateTime childPaintStart;
      if (kProfileMode && PerformanceTiming.enabled()) {
        childPaintStart = DateTime.now();
      }
      final RenderLayoutParentData childParentData =
          child.parentData as RenderLayoutParentData;
      context.paintChild(child, childParentData.offset + offset);
      if (kProfileMode && PerformanceTiming.enabled()) {
        DateTime childPaintEnd = DateTime.now();
        childPaintDuration += (childPaintEnd.microsecondsSinceEpoch -
            childPaintStart.microsecondsSinceEpoch);
      }
    }
  }
}