Struct pizarra::storage::Storage

pub struct Storage { /* private fields */ }

This struct handles storage and fast retrieval of shapes.

Implementations

impl Storage

A storage struct that organizes shapes by their zoom level and allows for fast queries given a zoom and a bbox.

pub fn new() -> Storage

pub fn add(&mut self, shape: Box<dyn ShapeStored>) -> ShapeId

Adds a new shape to the storage

pub fn restore(&mut self, shape: Shape) -> ShapeId

Restores a deleted shape

pub fn remove(&mut self, id: ShapeId) -> Option<Shape>

Deletes a shape from this storage given its id if such id exists

pub fn remove_circle( &mut self, center: Vec2D<WorldUnit>, radius: WorldUnit ) -> impl Iterator<Item = Shape> + '_

Returns the id of a shape intersecting the circle described by center and radius, if any.

pub fn shape_count(&self) -> usize

Returns the number of shapes in this storage

pub fn shapes_by_index(&self) -> impl Iterator<Item = &dyn ShapeStored>

Returns the shapes stored in this storage ordered by their index. It is used for rendering the shapes in the order they where drawn. Creates an allocation.

pub fn draw_commands(&self, bbox: [Vec2D<WorldUnit>; 2]) -> Vec<DrawCommand>

gets all the draw commands necessary to paint the portion of the screen indicated by bbox. Commands are cached to improve the performance of continuously drawing on the same portion of the screen

pub fn get_bounds(&self) -> Option<[Vec2D<WorldUnit>; 2]>

Gets the bounding box that surrounds every shape drawn or returns None if there are no shapes

Trait Implementations

impl Debug for Storage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Storage

fn default() -> Storage

Returns the “default value” for a type.