computeSize method

@override double computeSize({ required ParentLayout parent, required ChildLayout child, required LayoutHandle<Layout> layoutHandle, required LayoutAxis axis, required LayoutSize contentSize, required LayoutSize viewportSize, })

Computes the actual size value for this unit.

The calculation considers the parent layout context, child properties, layout axis, content size, and viewport constraints to determine the final size.

Parameters:

• parent: The parent layout providing context and constraints
• child: The child element being sized
• layoutHandle: Handle for layout operations
• axis: The axis along which sizing is calculated
• contentSize: The natural size of the content
• viewportSize: The available viewport size

Returns the computed size value.

Implementation

@override
double computeSize({
  required ParentLayout parent,
  required ChildLayout child,
  required LayoutHandle layoutHandle,
  required LayoutAxis axis,
  required LayoutSize contentSize,
  required LayoutSize viewportSize,
}) {
  double size = switch (axis) {
    LayoutAxis.horizontal => parent.viewportSize.width,
    LayoutAxis.vertical => parent.viewportSize.height,
  };
  return size * factor;
}