Struct ObjectTreeState 

pub struct ObjectTreeState {

    pub folders: BTreeSet<Vec<String>>,
    pub collapsed_folders: BTreeSet<Vec<String>>,
    pub creating_folder: Option<Vec<String>>,
    pub visible_ids: Vec<usize>,
    pub selected_ids: HashSet<usize>,
    pub last_selected_id: Option<usize>,
    pub selection_anchor: Option<usize>,
    pub expanded_groups: HashSet<String>,
    pub expanded_items: HashSet<usize>,
    pub data_window_expanded: bool,
    pub filter_text: String,
    pub filter_type: Option<SourceType>,
    pub dragging_id: Option<usize>,
    pub drag_start_pos: Option<Pos2>,
    pub drop_target: Option<usize>,
    pub renaming_id: Option<usize>,
    pub rename_text: String,
    pub hovered_id: Option<usize>,
}

State for the Object Tree panel

Fields

folders: BTreeSet<Vec<String>>

Known folder paths, including empty folders. Hosts may save and restore this set per chart; nonempty folders are also recovered from source rows on each frame.

collapsed_folders: BTreeSet<Vec<String>>

Collapsed folder paths. Search temporarily expands matching descendants.

creating_folder: Option<Vec<String>>

Parent of the folder being created by the name prompt.

visible_ids: Vec<usize>

Drawing and source ids in the rendered order, used for range selection.

selected_ids: HashSet<usize>

Currently selected item IDs

last_selected_id: Option<usize>

Last selected ID (for shift-click range selection)

selection_anchor: Option<usize>

Anchor ID for range selection

expanded_groups: HashSet<String>

Expanded group headers

expanded_items: HashSet<usize>

Expanded item IDs (showing properties)

data_window_expanded: bool

Data Window section expanded

filter_text: String

Filter text (search query)

filter_type: Option<SourceType>

Filter by source type

dragging_id: Option<usize>

Currently dragging item ID

drag_start_pos: Option<Pos2>

Drag start position

drop_target: Option<usize>

Drop target position (index)

renaming_id: Option<usize>

Currently renaming item ID

rename_text: String

Rename text buffer

hovered_id: Option<usize>

Currently hovered item ID

Implementations

impl ObjectTreeState

pub fn new() -> Self

Create a new state with default expansions

pub fn select(&mut self, id: usize)

Select a single item (clears other selections)

pub fn toggle_selection(&mut self, id: usize)

Add item to selection (toggle if already selected)

pub fn range_select(&mut self, id: usize, ordered_ids: &[usize])

Range select from anchor to id (given a list of ordered IDs)

pub fn select_all(&mut self, all_ids: &[usize])

Select all items

pub fn clear_selection(&mut self)

Clear all selections

pub fn is_selected(&self, id: usize) -> bool

Check if item is selected

pub fn selection_count(&self) -> usize

Get number of selected items

pub fn toggle_group(&mut self, group: &str)

Toggle group expansion

pub fn is_group_expanded(&self, group: &str) -> bool

Check if group is expanded

pub fn toggle_item(&mut self, id: usize)

Toggle item expansion (properties)

pub fn is_item_expanded(&self, id: usize) -> bool

Check if item is expanded

pub fn expand_all_groups(&mut self)

Expand all groups

pub fn collapse_all_groups(&mut self)

Collapse all groups

pub fn set_filter(&mut self, text: impl Into<String>)

Set filter text

pub fn clear_filter(&mut self)

Clear filter

pub fn has_filter(&self) -> bool

Check if filter is active

pub fn start_rename(&mut self, id: usize, current_name: &str)

Start renaming an item

pub fn cancel_rename(&mut self)

Cancel rename

pub fn finish_rename(&mut self) -> Option<(usize, String)>

Finish rename and return new name if changed

pub fn start_drag(&mut self, id: usize, pos: Pos2)

Start dragging an item

pub fn set_drop_target(&mut self, target: Option<usize>)

Update drop target

pub fn end_drag(&mut self) -> Option<(usize, usize)>

End drag operation

pub fn is_dragging(&self) -> bool

Check if currently dragging

pub fn sync_selected_drawing(&mut self, selected_drawing: Option<usize>)

Sync selected drawing from an external selection.

If selected_drawing is Some, ensures it is the sole selection.

Trait Implementations

impl Clone for ObjectTreeState

fn clone(&self) -> ObjectTreeState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ObjectTreeState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ObjectTreeState

fn default() -> ObjectTreeState

Returns the “default value” for a type.