egui_dock: docking support for egui

Credit goes to @Iain-dono for implementing the actual library.

This fork aims to provide documentation and further development if necessary.

Demo

Usage

First, create your context type and your tab widget:

```rust use egui::{Frame, Ui, style::Margin}; use egui_dock::Tab;

struct MyContext;

struct MyTab { text: String, }

impl MyTab { fn new(text: impl ToString) -> Self { Self { text: text.to_string(), } } }

impl Tab for MyTab { fn title(&self) -> &str { &self.title }

fn ui(&mut self, ui: &mut Ui, _ctx: &mut MyContext) {
    let margin = Margin::same(4.0);

    Frame::none().inner_margin(margin).show(ui, |ui| {
        ui.label(&self.text);
    });
}

} ```

Then construct the initial tree using your tab widget:

```rust use egui_dock::{NodeIndex, Tree};

let tab1 = Box::new(MyTab::new("Tab 1")); let tab2 = Box::new(MyTab::new("Tab 2")); let tab3 = Box::new(MyTab::new("Tab 3")); let tab4 = Box::new(MyTab::new("Tab 4")); let tab5 = Box::new(MyTab::new("Tab 5"));

let mut tree = Tree::new(vec![tab1, tab2]);

// You can modify the tree in runtime let [a, b] = tree.splitleft(NodeIndex::root(), 0.3, vec![tab3]); let [, ] = tree.splitbelow(a, 0.7, vec![tab4]); let [, _] = tree.splitbelow(b, 0.5, vec![tab5]); ```

Finally, you can show the tree.

rust let id = ui.id(); egui_dock::show(&mut ui, id, style, tree, context);

Contribution

Feel free to open issues and pull requests.