draw method

@override void draw(Canvas canvas, Rect bounds)

Draws the contents or children of this Drawable to the canvas, using the parentPaint to optionally override the child's paint.

The bounds is not used.

Implementation

@override
void draw(Canvas canvas, Rect bounds) {
  if (!hasDrawableContent) {
    return;
  }

  if (transform != null) {
    canvas.save();
    canvas.transform(transform!);
  }

  if (viewport.viewBoxOffset != Offset.zero) {
    canvas.translate(viewport.viewBoxOffset.dx, viewport.viewBoxOffset.dy);
  }
  for (Drawable child in children) {
    child.draw(canvas, viewport.viewBoxRect);
  }

  if (transform != null) {
    canvas.restore();
  }
}