Crate egui_dock

Expand description

`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.

Usage

The library is centered around the Tree. It stores the layout of Nodes which contains tabs.

Tree is generic (Tree<Tab>) so you can use any data to represent a tab. You show the tabs using DockArea and specify how they are shown by implementing TabViewer.

use egui_dock::{NodeIndex, Tree};

struct MyTabs {
    tree: Tree<String>
}

impl MyTabs {
    pub fn new() -> Self {
        let tab1 = "tab1".to_string();
        let tab2 = "tab2".to_string();

        let mut tree = Tree::new(vec![tab1]);
        tree.split_left(NodeIndex::root(), 0.20, vec![tab2]);

        Self { tree }
    }

    fn ui(&mut self, ui: &mut egui::Ui) {
        let style = egui_dock::Style::from_egui(ui.style().as_ref());
        egui_dock::DockArea::new(&mut self.tree)
            .style(style)
            .show_inside(ui, &mut TabViewer {});
    }
}

struct TabViewer {}

impl egui_dock::TabViewer for TabViewer {
    type Tab = String;

    fn ui(&mut self, ui: &mut egui::Ui, tab: &mut Self::Tab) {
        ui.label(format!("Content of {tab}"));
    }

    fn title(&mut self, tab: &mut Self::Tab) -> egui::WidgetText {
        (&*tab).into()
    }
}