egui_nodes: A Egui port of imnodes

Using egui_nodes

There are some simple examples here

Here is the basic usage:

pub fn example_graph(ctx: &mut Context, links: &mut Vec<(usize, usize)>, ui: &mut Ui) {
// add nodes with attributes
let nodes = vec![
NodeConstructor::new(0, Default::default())
.with_title(|ui| ui.label("Example Node A"))
.with_input_attribute(0, Defaut::default(), |ui| ui.label("Input"))
.with_static_attribute(1, |ui| ui.label("Can't Connect to Me"))
.with_output_attribute(2, Defaut::default(), |ui| ui.label("Output")),
NodeConstructor::new(1, Default::default())
.with_title(|ui| ui.label("Example Node B"))
.with_static_attribute(3, |ui| ui.label("Can't Connect to Me"))
.with_output_attribute(4, Defaut::default(), |ui| ui.label("Output"))
.with_input_attribute(5, Defaut::default(), |ui| ui.label("Input"))
];

ctx.show(
nodes,
links.iter().enumerate().map(|(i, (start, end))| (i, *start, *end, LinkArgs::default())),
ui
);

// remove destroyed links
if let Some(idx) = ctx.link_destroyed() {
links.remove(idx);
}

// add created links
if let Some((start, end, _)) = self.ctx.link_created() {
links.push((start, end))
}
}