Struct conrod::WidgetId

pub struct WidgetId(pub usize);

Unique, public widget identifier. Each widget must use a unique WidgetId so that it's state can be cached within the Ui type. The reason we use a usize is because widgets are cached within a Graph whose max number of Nodes is indexed by usize.

Trait Implementations

impl GraphIndex for WidgetId

fn to_widget_id(self, _map: &IndexMap) -> Option<WidgetId>

If not one already, convert Self to a WidgetId if it exists within the IndexMap.

fn to_node_index(self, map: &IndexMap) -> Option<NodeIndex>

If not one already, convert Self to a NodeIndex if it exists within the IndexMap.

fn from_idx<I: GraphIndex>(other: I, map: &IndexMap) -> Option<Self>

Convert some GraphIndex type to Self.

impl Ord for Id

fn cmp(&self, __arg_0: &Id) -> Ordering

This method returns an Ordering between self and other.

impl PartialOrd for Id

fn partial_cmp(&self, __arg_0: &Id) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &Id) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &Id) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &Id) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &Id) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Id

impl PartialEq for Id

fn eq(&self, __arg_0: &Id) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Id) -> bool

This method tests for !=.

impl Hash for Id

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

Feeds a slice of this type into the state provided.

impl Debug for Id

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for Id

fn clone(&self) -> Id

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Id

impl From<usize> for Id

fn from(u: usize) -> Id

Performs the conversion.

impl Add<usize> for Id

Simplify the incrementation of an Id in for loops i.e. this allows:

for i in 0..num_widgets { MyWidget::new().set(MY_WIDGET + i, ui); }

type Output = Id

The resulting type after applying the + operator

fn add(self, rhs: usize) -> Id

The method for the + operator