egui_ltreeview 0.1.9

A tree view widget for egui
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# `egui_treeview` is a tree view widget for [egui](https://github.com/emilk/egui)


[![github](https://img.shields.io/badge/github-LennysLounge/egui_ltreeview-8da0cb?logo=github)](https://github.com/LennysLounge/egui_ltreeview)
[![crates.io](https://img.shields.io/crates/v/egui_ltreeview)](https://crates.io/crates/egui_ltreeview)
[![docs.rs](https://img.shields.io/docsrs/egui_ltreeview)](https://docs.rs/egui_ltreeview)
[![egui_version](https://img.shields.io/badge/egui-0.31-blue)](https://github.com/emilk/egui)

This tree view widget implements all the common features of a tree view to get you
up and running as fast as possible.

### Features:

* Directory and leaf nodes
* Node selection
* Select multiple nodes
* Keyboard navigation using arrow keys
* Frontend for Drag and Drop support
* Agnostic to the implementation of your data.

# Getting started

```
let id = ui.make_persistent_id("Names tree view");
TreeView::new(id).show(ui, |builder| {
    builder.dir(0, "Root");
    builder.leaf(1, "Ava");
    builder.leaf(2, "Benjamin");
    builder.leaf(3, "Charlotte");
    builder.close_dir();
});
```
Create a new [`TreeView`](https://docs.rs/egui_ltreeview/latest/egui_ltreeview/struct.TreeView.html) with its unique id and show it for the current ui.
Use the [`builder`](https://docs.rs/egui_ltreeview/latest/egui_ltreeview/struct.TreeViewBuilder.html) in the callback to add directories and leaves
to the tree. The nodes of the tree must have a unqiue id which implements the [`NodeId`](https://docs.rs/egui_ltreeview/latest/egui_ltreeview/trait.NodeId.html) trait.

# Examples

The examples folder contains a few examples to get you up and running quickly.
It also contains a [`playground`](https://github.com/LennysLounge/egui_ltreeview/blob/main/examples/playground/main.rs) example witch implements every feature of this widget and lets you change its settings on the fly. You can run it using `cargo run --example playground`.

# Demo

![Demo showing selection, moving and creation of files in the tree view](demo.gif)