Enum DHit 

#[non_exhaustive]
pub enum DHit {
    None,
    Node(u64),
    Port(u64),
    Edge {
        key: u64,
        seg: u32,
        t: f32,
    },
    Waypoint(u64, u32),
    Mid(u64, u32),
    Toggle(u64),
    Resize(u64),
}

what a point of the canvas shows

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Node(u64)

Port(u64)

Edge

an edge: seg = the stretch between its defining points seg and seg + 1 (0 = the start, then the waypoints), t = 0..1 along it

Fields

key: u64

seg: u32

t: f32

Waypoint(u64, u32)

the handle of waypoint idx of a selected edge

Mid(u64, u32)

the handle in the middle of stretch idx of a selected edge (a drag inserts waypoint idx)

Toggle(u64)

the collapse button of a DN_TOGGLE node

Resize(u64)

the resize handle of a selected DN_RESIZE node

Implementations

impl DHit

pub fn key(&self) -> u64

the node, port or edge key (0 = the background)

Trait Implementations

impl Clone for DHit

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DHit

impl Debug for DHit

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

Formats the value using the given formatter.

impl Default for DHit

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for DHit

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DHit