Release 0.17

[anhosh]

egui_dock 0.17.0 - 2025/07/13

Breaking changes

• From (#272):
  • Nodes underlying data has been split up into the LeafNode and SplitNode types, meaning that any match
    statements carried out on a node now needs to account for this.
• Upgraded to egui 0.32 (#280)

Changed

• From (#272):
  • Tree::set_active_tab now takes impl Into<NodeIndex> and impl Into<TabIndex> to make use slightly easier.
  • Surface now implements Index<NodeIndex>/IndexMut<NodeIndex> which tries to access the surfaces node tree and
    the node at the index. This will always panic when used on an empty surface as they do not have a node tree nor
    nodes.

Added

• From (#272):
  • DockState::iter_leaves and DockState::iter_leaves_mut - can be used to more efficiently iterate over leaf
    nodes without needing to "unwrap" them from the Node enum.
  • DockState::find_tab_from/Tree::find_tab_from - a more generalized version of the existing find_tab methods
    which doesn't require the tab type to implement PartialEq.
  • New type LeafNode which contains leaf node data and has the following methods:
    • new,
    • set_active_tab,
    • set_rect,
    • rect,
    • len,
    • is_empty,
    • tabs,
    • tabs_mut,
    • append_tab,
    • insert_tab,
    • remove_tab,
    • retain_tabs,
    • active_focused.
  • New type SplitNode which contains data about node splits and has the following methods:
    • new,
    • set_rect,
    • rect.
  • Node::get_leaf/Node::get_leaf_mut - an alternative way of trying to access leaf data in a node.
• TabBarStyle now has two new fields: inner_margin and
  spacing. (#270)

Fixed

• DockState::retain_tabs no longer deletes the main surface if it ends up
  empty (#277).
• From #275:
  • {DockState,Tree}::remove_leaf now removes unused empty node`s at the back of the tree.
  • {DockState,Tree}::retain_tabs no longer deletes leaf nodes it shouldn't delete.