Using tree data structures to implement terminal split panes - more fun than it sounds

The text discusses how tree data structures were used to build split panes in a terminal application called Warp, which is written entirely in Rust. Trees are well-suited for this problem as they can represent the spatial relationships between panes and allow for easy addition and removal of panes. The algorithm used to add and remove panes has a run-time complexity of O(N), where N is the number of nodes in the tree, and a memory complexity of O(1). One challenge encountered was supporting navigation with arrow keys while maintaining the visual layout of the panes. To make the navigation experience more natural, a heuristic was used to focus on the first or last child node based on the direction of navigation. The run-time complexity of navigation is also O(N). Each pane's size is determined by its flex ratio relative to the branch node's size, allowing for easy resizing and maintaining the overall dimensions of all panes together.