Struct Context

pub struct Context {
    pub io: IO,
    pub style: Style,
    /* private fields */
}

The Context that tracks the state of the node editor

Fields

io: IO

style: Style

Implementations

impl Context

pub fn show<'a>( &mut self, nodes: impl IntoIterator<Item = NodeConstructor<'a>>, links: impl IntoIterator<Item = (usize, usize, usize, LinkArgs)>, ui: &mut Ui, ) -> Response

Displays the current state of the editor on a give Egui Ui as well as updating user input to the context

pub fn attribute_flag_push(&mut self, flag: AttributeFlags)

Push a sigle AttributeFlags value, by default only None is set. Used for pins that don’t have a specific attribute flag specified

pub fn attribute_flag_pop(&mut self)

Remove the last added AttributeFlags value

pub fn color_style_push(&mut self, item: ColorStyle, color: Color32)

Changes the current colors used by the editor

pub fn color_style_pop(&mut self)

Revert the last color change

pub fn style_var_push(&mut self, item: StyleVar, value: f32)

Change a context style value

pub fn style_var_pop(&mut self)

Revert the last context style change

pub fn set_node_pos_screen_space( &mut self, node_id: usize, screen_space_pos: Pos2, )

pub fn set_node_pos_editor_space( &mut self, node_id: usize, editor_space_pos: Pos2, )

pub fn set_node_pos_grid_space(&mut self, node_id: usize, grid_pos: Pos2)

pub fn set_node_draggable(&mut self, node_id: usize, draggable: bool)

pub fn get_node_pos_screen_space(&self, node_id: usize) -> Option<Pos2>

pub fn get_node_pos_editor_space(&self, node_id: usize) -> Option<Pos2>

pub fn get_node_pos_grid_space(&self, node_id: usize) -> Option<Pos2>

pub fn node_hovered(&self) -> Option<usize>

Check if there is a node that is hovered by the pointer

pub fn link_hovered(&self) -> Option<usize>

Check if there is a link that is hovered by the pointer

pub fn pin_hovered(&self) -> Option<usize>

Check if there is a pin that is hovered by the pointer

pub fn num_selected_nodes(&self) -> usize

pub fn get_selected_nodes(&self) -> Vec<usize>

pub fn get_selected_links(&self) -> Vec<usize>

pub fn clear_node_selection(&mut self)

pub fn clear_link_selection(&mut self)

pub fn active_attribute(&self) -> Option<usize>

Check if an attribute is currently being interacted with

pub fn link_started(&self) -> Option<usize>

Has a new link been created from a pin?

pub fn link_dropped(&self, including_detached_links: bool) -> Option<usize>

Has a link been dropped? if including_detached_links then links that were detached then dropped are included

pub fn link_created(&self) -> Option<(usize, usize, bool)>

Has a new link been created? -> Option<start_pin, end_pin created_from_snap>

pub fn link_created_node(&self) -> Option<(usize, usize, usize, usize, bool)>

Has a new link been created? Includes start and end node -> Option<start_pin, start_node, end_pin, end_node created_from_snap>

pub fn link_destroyed(&self) -> Option<usize>

pub fn get_panning(&self) -> Vec2

pub fn reset_panniing(&mut self, panning: Vec2)

pub fn get_node_dimensions(&self, id: usize) -> Option<Vec2>

Trait Implementations

impl Debug for Context

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

Formats the value using the given formatter.

impl Default for Context

fn default() -> Self

Returns the “default value” for a type.