Struct RenderTree 

pub struct RenderTree {
    pub nodes: Vec<Option<Arc<RenderTreeNode>>>,
    pub width: usize,
    pub height: usize,
}

Main structure for rendering an execution plan as a tree. Manages a 2D grid of nodes and their layout information.

Fields

nodes: Vec<Option<Arc<RenderTreeNode>>>

Storage for tree nodes in a flattened 2D grid

width: usize

Total width of the rendered tree

height: usize

Total height of the rendered tree

Implementations

impl RenderTree

pub fn create_tree(plan: &dyn ExecutionPlan) -> Self

Creates a new render tree from an execution plan.

fn new(width: usize, height: usize) -> Self

pub fn get_node(&self, x: usize, y: usize) -> Option<Arc<RenderTreeNode>>

pub fn set_node(&mut self, x: usize, y: usize, node: Arc<RenderTreeNode>)

pub fn has_node(&self, x: usize, y: usize) -> bool

fn get_position(&self, x: usize, y: usize) -> usize