Trait conrod::graph::GraphIndex [−] [src]

pub trait GraphIndex: Debug + Copy + Clone {
    fn to_widget_id(self, map: &IndexMap) -> Option<WidgetId>;
    fn to_node_index(self, map: &IndexMap) -> Option<NodeIndex>;
    fn from_idx<I: GraphIndex>(other: I, map: &IndexMap) -> Option<Self>;
}

A trait for being generic over both WidgetId and NodeIndex. Each method should only return Some if they are contained as a key within the given IndexMap.

Required Methods

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.

Implementors