Struct Selector 

pub struct Selector { /* private fields */ }

Shows at most one of its children.

You can change which node is selected as visible, or set no child to be visible. If you wish to have multiple children visible at once, wrap all of them in Hiders and your choice of container.

The minimum size of the selector is the minimum size of the selected child, or 0 if none is selected.

Implementations

impl Selector

pub fn new() -> Self

Create an empty Selector with no children, no selection, and alignment (Begin, Begin).

pub fn with_child(self, index: NodeIndex) -> Self

Add a new child to the list. If there are no other children, the new child will be selected.

pub fn with_align(self, align: (Alignment, Alignment)) -> Self

Set the horizontal and vertical alignment of the container, not the children.

pub fn add_child(&mut self, index: NodeIndex)

Add a child to the list.

pub fn len(&self) -> usize

Returns the number of children in the list.

pub fn is_empty(&self) -> bool

Returns true if the list is empty.

Equivalent to len() == 0.

pub fn remove_child(&mut self, index: usize, tree: &mut UiTree) -> bool

Remove a child from the list. If the child is currently selected, the selection is removed.

Returns true if the child was removed.

pub fn set_child_position(&mut self, index: usize, position: usize) -> bool

Move a child to a new index. Lower indices are visited first.

Returns true if the child was moved.

pub fn get_child_index(&self, index: usize) -> Option<NodeIndex>

Returns the tree index associated with a child at a given list index.

pub fn get_selected(&self) -> Option<NodeIndex>

Returns the tree index of the currently-selected node.

pub fn get_selected_index(&self) -> Option<usize>

Returns the list index of the currently-selected node.

pub fn set_selected(&mut self, child: NodeIndex)

Sets the selected node to the given tree index.

pub fn set_selected_index(&mut self, index: usize)

Sets the selected node to the given list index.

pub fn unselect(&mut self)

Removes the selection.

Trait Implementations

impl Default for Selector

fn default() -> Self

Returns the “default value” for a type.

impl UiNode for Selector

fn get_align(&self) -> (Alignment, Alignment)

Get the alignment of the node.

fn get_align_mut(&mut self) -> (&mut Alignment, &mut Alignment)

Get a mutable reference to the alignment of the node.

fn calculate_min_size(&self, tree: &UiTree) -> (f32, f32)

Calculate the minimum size of the node.

fn calculate_rects(&self, cache: &NodeCache, tree: &UiTree) -> Vec<Rect>

Recalculate the position and size of child nodes, in the same order and count as get_visible_children.

fn get_children(&self) -> Vec<NodeIndex>

Get all children of the node, if applicable.

fn get_visible_children(&self) -> Vec<NodeIndex>

Get all visible children of the node, if applicable.