Table of Contents

Class Tree

A control used to show a set of internal TreeItems in a hierarchical structure.

Inheritance
Tree

Remarks

A control used to show a set of internal TreeItems in a hierarchical structure. The tree items can be selected, expanded and collapsed. The tree can have multiple columns with custom controls like LineEdits, buttons and popups. It can be useful for structured displays and interactions.

Trees are built via code, using TreeItem objects to create the structure. They have a single root, but multiple roots can be simulated with hide_root:

func _ready():
    var tree = Tree.new()
    var root = tree.create_item()
    tree.hide_root = true
    var child1 = tree.create_item(root)
    var child2 = tree.create_item(root)
    var subchild1 = tree.create_item(child1)
    subchild1.set_text(0, "Subchild1")

To iterate over all the TreeItem objects in a Tree object, use get_next and get_first_child after getting the root through get_root. You can use free on a TreeItem to remove it from the Tree.

Incremental search: Like ItemList and PopupMenu, Tree supports searching within the list while the control is focused. Press a key that matches the first letter of an item's name to select the first item starting with the given letter. After that point, there are two ways to perform incremental search: 1) Press the same key again before the timeout duration to select the next item starting with the same letter. 2) Press letter keys that match the rest of the word before the timeout duration to match to select the item in question directly. Both of these actions will be reset to the beginning of the list if the timeout duration has passed since the last keystroke was registered. You can adjust the timeout duration by changing gui/timers/incremental_search_max_interval_msec.

Properties

allow_reselect

If true, the currently selected cell may be selected again.

var allow_reselect : bool = false

Property Value

bool

Remarks

  • void set_allow_reselect(bool value)
  • bool get_allow_reselect

allow_rmb_select

If true, a right mouse button click can select items.

var allow_rmb_select : bool = false

Property Value

bool

Remarks

  • void set_allow_rmb_select(bool value)
  • bool get_allow_rmb_select

If true, allows navigating the Tree with letter keys through incremental search.

var allow_search : bool = true

Property Value

bool

Remarks

  • void set_allow_search(bool value)
  • bool get_allow_search

auto_tooltip

If true, tree items with no tooltip assigned display their text as their tooltip. See also TreeItem.get_tooltip_text and TreeItem.get_button_tooltip_text.

var auto_tooltip : bool = true

Property Value

bool

Remarks

  • void set_auto_tooltip(bool value)
  • bool is_auto_tooltip_enabled

column_titles_visible

If true, column titles are visible.

var column_titles_visible : bool = false

Property Value

bool

Remarks

  • void set_column_titles_visible(bool value)
  • bool are_column_titles_visible

columns

The number of columns.

var columns : int = 1

Property Value

int

Remarks

  • void set_columns(int value)
  • int get_columns

drop_mode_flags

The drop mode as an OR combination of flags. See DropModeFlags constants. Once dropping is done, reverts to Tree.DROP_MODE_DISABLED. Setting this during Control._can_drop_data is recommended.

This controls the drop sections, i.e. the decision and drawing of possible drop locations based on the mouse position.

var drop_mode_flags : int = 0

Property Value

int

Remarks

  • void set_drop_mode_flags(int value)
  • int get_drop_mode_flags

enable_recursive_folding

If true, recursive folding is enabled for this Tree. Holding down Shift while clicking the fold arrow or using ui_right/ui_left shortcuts collapses or uncollapses the TreeItem and all its descendants.

var enable_recursive_folding : bool = true

Property Value

bool

Remarks

  • void set_enable_recursive_folding(bool value)
  • bool is_recursive_folding_enabled

hide_folding

If true, the folding arrow is hidden.

var hide_folding : bool = false

Property Value

bool

Remarks

  • void set_hide_folding(bool value)
  • bool is_folding_hidden

hide_root

If true, the tree's root is hidden.

var hide_root : bool = false

Property Value

bool

Remarks

  • void set_hide_root(bool value)
  • bool is_root_hidden

scroll_horizontal_enabled

If true, enables horizontal scrolling.

var scroll_horizontal_enabled : bool = true

Property Value

bool

Remarks

  • void set_h_scroll_enabled(bool value)
  • bool is_h_scroll_enabled

scroll_vertical_enabled

If true, enables vertical scrolling.

var scroll_vertical_enabled : bool = true

Property Value

bool

Remarks

  • void set_v_scroll_enabled(bool value)
  • bool is_v_scroll_enabled

select_mode

Allows single or multiple selection. See the SelectMode constants.

var select_mode : int = 0

Property Value

int

Remarks

  • void set_select_mode(int value)
  • int get_select_mode

children_hl_line_color

Theme Property

The Color of the relationship lines between the selected TreeItem and its children.

 = ``Color(0.27, 0.27, 0.27, 1)``

Property Value

Color

custom_button_font_highlight

Theme Property

Text Color for a TreeItem.CELL_MODE_CUSTOM mode cell when it's hovered.

 = ``Color(0.95, 0.95, 0.95, 1)``

Property Value

Color

drop_position_color

Theme Property

Color used to draw possible drop locations. See DropModeFlags constants for further description of drop locations.

 = ``Color(1, 1, 1, 1)``

Property Value

Color

font_color

Theme Property

Default text Color of the item.

 = ``Color(0.7, 0.7, 0.7, 1)``

Property Value

Color

font_disabled_color

Theme Property

Text Color for a TreeItem.CELL_MODE_CHECK mode cell when it's non-editable (see TreeItem.set_editable).

 = ``Color(0.875, 0.875, 0.875, 0.5)``

Property Value

Color

font_hovered_color

Theme Property

Text Color used when the item is hovered.

 = ``Color(0.95, 0.95, 0.95, 1)``

Property Value

Color

font_hovered_dimmed_color

Theme Property

Text Color used when the item is hovered, while a button of the same item is hovered as the same time.

 = ``Color(0.875, 0.875, 0.875, 1)``

Property Value

Color

font_outline_color

Theme Property

The tint of text outline of the item.

 = ``Color(0, 0, 0, 1)``

Property Value

Color

font_selected_color

Theme Property

Text Color used when the item is selected.

 = ``Color(1, 1, 1, 1)``

Property Value

Color

guide_color

Theme Property

Color of the guideline.

 = ``Color(0.7, 0.7, 0.7, 0.25)``

Property Value

Color

parent_hl_line_color

Theme Property

The Color of the relationship lines between the selected TreeItem and its parents.

 = ``Color(0.27, 0.27, 0.27, 1)``

Property Value

Color

relationship_line_color

Theme Property

The default Color of the relationship lines.

 = ``Color(0.27, 0.27, 0.27, 1)``

Property Value

Color

title_button_color

Theme Property

Default text Color of the title button.

 = ``Color(0.875, 0.875, 0.875, 1)``

Property Value

Color

button_margin

Theme Property

The horizontal space between each button in a cell.

 = ``4``

Property Value

int

children_hl_line_width

Theme Property

The width of the relationship lines between the selected TreeItem and its children.

 = ``1``

Property Value

int

draw_guides

Theme Property

Draws the guidelines if not zero, this acts as a boolean. The guideline is a horizontal line drawn at the bottom of each item.

 = ``1``

Property Value

int

draw_relationship_lines

Theme Property

Draws the relationship lines if not zero, this acts as a boolean. Relationship lines are drawn at the start of child items to show hierarchy.

 = ``0``

Property Value

int

h_separation

Theme Property

The horizontal space between item cells. This is also used as the margin at the start of an item when folding is disabled.

 = ``4``

Property Value

int

icon_max_width

Theme Property

The maximum allowed width of the icon in item's cells. This limit is applied on top of the default size of the icon, but before the value set with TreeItem.set_icon_max_width. The height is adjusted according to the icon's ratio.

 = ``0``

Property Value

int

inner_item_margin_bottom

Theme Property

The inner bottom margin of a cell.

 = ``0``

Property Value

int

inner_item_margin_left

Theme Property

The inner left margin of a cell.

 = ``0``

Property Value

int

inner_item_margin_right

Theme Property

The inner right margin of a cell.

 = ``0``

Property Value

int

inner_item_margin_top

Theme Property

The inner top margin of a cell.

 = ``0``

Property Value

int

item_margin

Theme Property

The horizontal margin at the start of an item. This is used when folding is enabled for the item.

 = ``16``

Property Value

int

outline_size

Theme Property

The size of the text outline.

Note: If using a font with multichannel_signed_distance_field enabled, its msdf_pixel_range must be set to at least twice the value of outline_size for outline rendering to look correct. Otherwise, the outline may appear to be cut off earlier than intended.

 = ``0``

Property Value

int

parent_hl_line_margin

Theme Property

The space between the parent relationship lines for the selected TreeItem and the relationship lines to its siblings that are not selected.

 = ``0``

Property Value

int

parent_hl_line_width

Theme Property

The width of the relationship lines between the selected TreeItem and its parents.

 = ``1``

Property Value

int

relationship_line_width

Theme Property

The default width of the relationship lines.

 = ``1``

Property Value

int

scroll_border

Theme Property

The maximum distance between the mouse cursor and the control's border to trigger border scrolling when dragging.

 = ``4``

Property Value

int

scroll_speed

Theme Property

The speed of border scrolling.

 = ``12``

Property Value

int

scrollbar_h_separation

Theme Property

The horizontal separation of tree content and scrollbar.

 = ``4``

Property Value

int

scrollbar_margin_bottom

Theme Property

The bottom margin of the scrollbars. When negative, uses panel bottom margin.

 = ``-1``

Property Value

int

scrollbar_margin_left

Theme Property

The left margin of the horizontal scrollbar. When negative, uses panel left margin.

 = ``-1``

Property Value

int

scrollbar_margin_right

Theme Property

The right margin of the scrollbars. When negative, uses panel right margin.

 = ``-1``

Property Value

int

scrollbar_margin_top

Theme Property

The top margin of the vertical scrollbar. When negative, uses panel top margin.

 = ``-1``

Property Value

int

scrollbar_v_separation

Theme Property

The vertical separation of tree content and scrollbar.

 = ``4``

Property Value

int

v_separation

Theme Property

The vertical padding inside each item, i.e. the distance between the item's content and top/bottom border.

 = ``4``

Property Value

int

font

Theme Property

Font of the item's text.

Font font

Property Value

Font

title_button_font

Theme Property

Font of the title button's text.

Font title_button_font

Property Value

Font

font_size

Theme Property

Font size of the item's text.

int font_size

Property Value

int

title_button_font_size

Theme Property

Font size of the title button's text.

int title_button_font_size

Property Value

int

arrow

Theme Property

The arrow icon used when a foldable item is not collapsed.

Texture2D arrow

Property Value

Texture2D

arrow_collapsed

Theme Property

The arrow icon used when a foldable item is collapsed (for left-to-right layouts).

Texture2D arrow_collapsed

Property Value

Texture2D

arrow_collapsed_mirrored

Theme Property

The arrow icon used when a foldable item is collapsed (for right-to-left layouts).

Texture2D arrow_collapsed_mirrored

Property Value

Texture2D

checked

Theme Property

The check icon to display when the TreeItem.CELL_MODE_CHECK mode cell is checked and editable (see TreeItem.set_editable).

Texture2D checked

Property Value

Texture2D

checked_disabled

Theme Property

The check icon to display when the TreeItem.CELL_MODE_CHECK mode cell is checked and non-editable (see TreeItem.set_editable).

Texture2D checked_disabled

Property Value

Texture2D

indeterminate

Theme Property

The check icon to display when the TreeItem.CELL_MODE_CHECK mode cell is indeterminate and editable (see TreeItem.set_editable).

Texture2D indeterminate

Property Value

Texture2D

indeterminate_disabled

Theme Property

The check icon to display when the TreeItem.CELL_MODE_CHECK mode cell is indeterminate and non-editable (see TreeItem.set_editable).

Texture2D indeterminate_disabled

Property Value

Texture2D

select_arrow

Theme Property

The arrow icon to display for the TreeItem.CELL_MODE_RANGE mode cell.

Texture2D select_arrow

Property Value

Texture2D

unchecked

Theme Property

The check icon to display when the TreeItem.CELL_MODE_CHECK mode cell is unchecked and editable (see TreeItem.set_editable).

Texture2D unchecked

Property Value

Texture2D

unchecked_disabled

Theme Property

The check icon to display when the TreeItem.CELL_MODE_CHECK mode cell is unchecked and non-editable (see TreeItem.set_editable).

Texture2D unchecked_disabled

Property Value

Texture2D

updown

Theme Property

The updown arrow icon to display for the TreeItem.CELL_MODE_RANGE mode cell.

Texture2D updown

Property Value

Texture2D

button_hover

Theme Property

StyleBox used when a button in the tree is hovered.

StyleBox button_hover

Property Value

StyleBox

button_pressed

Theme Property

StyleBox used when a button in the tree is pressed.

StyleBox button_pressed

Property Value

StyleBox

cursor

Theme Property

StyleBox used for the cursor, when the Tree is being focused.

StyleBox cursor

Property Value

StyleBox

cursor_unfocused

Theme Property

StyleBox used for the cursor, when the Tree is not being focused.

StyleBox cursor_unfocused

Property Value

StyleBox

custom_button

Theme Property

Default StyleBox for a TreeItem.CELL_MODE_CUSTOM mode cell when button is enabled with TreeItem.set_custom_as_button.

StyleBox custom_button

Property Value

StyleBox

custom_button_hover

Theme Property

StyleBox for a TreeItem.CELL_MODE_CUSTOM mode button cell when it's hovered.

StyleBox custom_button_hover

Property Value

StyleBox

custom_button_pressed

Theme Property

StyleBox for a TreeItem.CELL_MODE_CUSTOM mode button cell when it's pressed.

StyleBox custom_button_pressed

Property Value

StyleBox

focus

Theme Property

The focused style for the Tree, drawn on top of everything.

StyleBox focus

Property Value

StyleBox

hovered

Theme Property

StyleBox for the item being hovered.

StyleBox hovered

Property Value

StyleBox

hovered_dimmed

Theme Property

StyleBox for the item being hovered, while a button of the same item is hovered as the same time.

StyleBox hovered_dimmed

Property Value

StyleBox

panel

Theme Property

The background style for the Tree.

StyleBox panel

Property Value

StyleBox

selected

Theme Property

StyleBox for the selected items, used when the Tree is not being focused.

StyleBox selected

Property Value

StyleBox

selected_focus

Theme Property

StyleBox for the selected items, used when the Tree is being focused.

StyleBox selected_focus

Property Value

StyleBox

title_button_hover

Theme Property

StyleBox used when the title button is being hovered.

StyleBox title_button_hover

Property Value

StyleBox

title_button_normal

Theme Property

Default StyleBox for the title button.

StyleBox title_button_normal

Property Value

StyleBox

title_button_pressed

Theme Property

StyleBox used when the title button is being pressed.

StyleBox title_button_pressed

Property Value

StyleBox

Methods

clear

Clears the tree. This removes all items.

void clear

create_item(TreeItem, int)

Creates an item in the tree and adds it as a child of parent, which can be either a valid TreeItem or null.

If parent is null, the root item will be the parent, or the new item will be the root itself if the tree is empty.

The new item will be the index-th child of parent, or it will be the last child if there are not enough siblings.

TreeItem create_item(TreeItem parent, int index)

Parameters

parent TreeItem
index int

deselect_all

Deselects all tree items (rows and columns). In Tree.SELECT_MULTI mode also removes selection cursor.

void deselect_all

edit_selected(bool)

Edits the selected tree item as if it was clicked.

Either the item must be set editable with TreeItem.set_editable or force_edit must be true.

Returns true if the item could be edited. Fails if no item is selected.

bool edit_selected(bool force_edit)

Parameters

force_edit bool

ensure_cursor_is_visible

Makes the currently focused cell visible.

This will scroll the tree if necessary. In Tree.SELECT_ROW mode, this will not do horizontal scrolling, as all the cells in the selected row is focused logically.

Note: Despite the name of this method, the focus cursor itself is only visible in Tree.SELECT_MULTI mode.

void ensure_cursor_is_visible

get_button_id_at_position(Vector2)

Qualifiers: const

Returns the button ID at position, or -1 if no button is there.

int get_button_id_at_position(Vector2 position)

Parameters

position Vector2

get_column_at_position(Vector2)

Qualifiers: const

Returns the column index at position, or -1 if no item is there.

int get_column_at_position(Vector2 position)

Parameters

position Vector2

get_column_expand_ratio(int)

Qualifiers: const

Returns the expand ratio assigned to the column.

int get_column_expand_ratio(int column)

Parameters

column int

get_column_title(int)

Qualifiers: const

Returns the column's title.

String get_column_title(int column)

Parameters

column int

get_column_title_alignment(int)

Qualifiers: const

Returns the column title alignment.

int get_column_title_alignment(int column)

Parameters

column int

get_column_title_direction(int)

Qualifiers: const

Returns column title base writing direction.

int get_column_title_direction(int column)

Parameters

column int

get_column_title_language(int)

Qualifiers: const

Returns column title language code.

String get_column_title_language(int column)

Parameters

column int

get_column_width(int)

Qualifiers: const

Returns the column's width in pixels.

int get_column_width(int column)

Parameters

column int

get_custom_popup_rect

Qualifiers: const

Returns the rectangle for custom popups. Helper to create custom cell controls that display a popup. See TreeItem.set_cell_mode.

Rect2 get_custom_popup_rect

get_drop_section_at_position(Vector2)

Qualifiers: const

Returns the drop section at position, or -100 if no item is there.

Values -1, 0, or 1 will be returned for the "above item", "on item", and "below item" drop sections, respectively. See DropModeFlags for a description of each drop section.

To get the item which the returned drop section is relative to, use Tree.get_item_at_position.

int get_drop_section_at_position(Vector2 position)

Parameters

position Vector2

get_edited

Qualifiers: const

Returns the currently edited item. Can be used with item_edited to get the item that was modified.

func _ready():
    $Tree.item_edited.connect(on_Tree_item_edited)

func on_Tree_item_edited():
    print($Tree.get_edited()) # This item just got edited (e.g. checked).


TreeItem get_edited

get_edited_column

Qualifiers: const

Returns the column for the currently edited item.

int get_edited_column

get_item_area_rect(TreeItem, int, int)

Qualifiers: const

Returns the rectangle area for the specified TreeItem. If column is specified, only get the position and size of that column, otherwise get the rectangle containing all columns. If a button index is specified, the rectangle of that button will be returned.

Rect2 get_item_area_rect(TreeItem item, int column, int button_index)

Parameters

item TreeItem
column int
button_index int

get_item_at_position(Vector2)

Qualifiers: const

Returns the tree item at the specified position (relative to the tree origin position).

TreeItem get_item_at_position(Vector2 position)

Parameters

position Vector2

get_next_selected(TreeItem)

Returns the next selected TreeItem after the given one, or null if the end is reached.

If from is null, this returns the first selected item.

TreeItem get_next_selected(TreeItem from)

Parameters

from TreeItem

get_pressed_button

Qualifiers: const

Returns the last pressed button's index.

int get_pressed_button

get_root

Qualifiers: const

Returns the tree's root item, or null if the tree is empty.

TreeItem get_root

get_scroll

Qualifiers: const

Returns the current scrolling position.

Vector2 get_scroll

get_selected

Qualifiers: const

Returns the currently focused item, or null if no item is focused.

In Tree.SELECT_ROW and Tree.SELECT_SINGLE modes, the focused item is same as the selected item. In Tree.SELECT_MULTI mode, the focused item is the item under the focus cursor, not necessarily selected.

To get the currently selected item(s), use Tree.get_next_selected.

TreeItem get_selected

get_selected_column

Qualifiers: const

Returns the currently focused column, or -1 if no column is focused.

In Tree.SELECT_SINGLE mode, the focused column is the selected column. In Tree.SELECT_ROW mode, the focused column is always 0 if any item is selected. In Tree.SELECT_MULTI mode, the focused column is the column under the focus cursor, and there are not necessarily any column selected.

To tell whether a column of an item is selected, use TreeItem.is_selected.

int get_selected_column

is_column_clipping_content(int)

Qualifiers: const

Returns true if the column has enabled clipping (see Tree.set_column_clip_content).

bool is_column_clipping_content(int column)

Parameters

column int

is_column_expanding(int)

Qualifiers: const

Returns true if the column has enabled expanding (see Tree.set_column_expand).

bool is_column_expanding(int column)

Parameters

column int

scroll_to_item(TreeItem, bool)

Causes the Tree to jump to the specified TreeItem.

void scroll_to_item(TreeItem item, bool center_on_item)

Parameters

item TreeItem
center_on_item bool

set_column_clip_content(int, bool)

Allows to enable clipping for column's content, making the content size ignored.

void set_column_clip_content(int column, bool enable)

Parameters

column int
enable bool

set_column_custom_minimum_width(int, int)

Overrides the calculated minimum width of a column. It can be set to 0 to restore the default behavior. Columns that have the "Expand" flag will use their "min_width" in a similar fashion to size_flags_stretch_ratio.

void set_column_custom_minimum_width(int column, int min_width)

Parameters

column int
min_width int

set_column_expand(int, bool)

If true, the column will have the "Expand" flag of Control. Columns that have the "Expand" flag will use their expand ratio in a similar fashion to size_flags_stretch_ratio (see Tree.set_column_expand_ratio).

void set_column_expand(int column, bool expand)

Parameters

column int
expand bool

set_column_expand_ratio(int, int)

Sets the relative expand ratio for a column. See Tree.set_column_expand.

void set_column_expand_ratio(int column, int ratio)

Parameters

column int
ratio int

set_column_title(int, String)

Sets the title of a column.

void set_column_title(int column, String title)

Parameters

column int
title String

set_column_title_alignment(int, int)

Sets the column title alignment. Note that @GlobalScope.HORIZONTAL_ALIGNMENT_FILL is not supported for column titles.

void set_column_title_alignment(int column, int title_alignment)

Parameters

column int
title_alignment int

set_column_title_direction(int, int)

Sets column title base writing direction.

void set_column_title_direction(int column, int direction)

Parameters

column int
direction int

set_column_title_language(int, String)

Sets language code of column title used for line-breaking and text shaping algorithms, if left empty current locale is used instead.

void set_column_title_language(int column, String language)

Parameters

column int
language String

set_selected(TreeItem, int)

Selects the specified TreeItem and column.

void set_selected(TreeItem item, int column)

Parameters

item TreeItem
column int

Events

button_clicked(TreeItem, int, int, int)

Emitted when a button on the tree was pressed (see TreeItem.add_button).

signal button_clicked(TreeItem item, int column, int id, int mouse_button_index)

Parameters

item TreeItem
column int
id int
mouse_button_index int

cell_selected

Emitted when a cell is selected.

signal cell_selected

check_propagated_to_item(TreeItem, int)

Emitted when TreeItem.propagate_check is called. Connect to this signal to process the items that are affected when TreeItem.propagate_check is invoked. The order that the items affected will be processed is as follows: the item that invoked the method, children of that item, and finally parents of that item.

signal check_propagated_to_item(TreeItem item, int column)

Parameters

item TreeItem
column int

column_title_clicked(int, int)

Emitted when a column's title is clicked with either @GlobalScope.MOUSE_BUTTON_LEFT or @GlobalScope.MOUSE_BUTTON_RIGHT.

signal column_title_clicked(int column, int mouse_button_index)

Parameters

column int
mouse_button_index int

custom_item_clicked(int)

Emitted when an item with TreeItem.CELL_MODE_CUSTOM is clicked with a mouse button.

signal custom_item_clicked(int mouse_button_index)

Parameters

mouse_button_index int

custom_popup_edited(bool)

Emitted when a cell with the TreeItem.CELL_MODE_CUSTOM is clicked to be edited.

signal custom_popup_edited(bool arrow_clicked)

Parameters

arrow_clicked bool

empty_clicked(Vector2, int)

Emitted when a mouse button is clicked in the empty space of the tree.

signal empty_clicked(Vector2 click_position, int mouse_button_index)

Parameters

click_position Vector2
mouse_button_index int

item_activated

Emitted when an item is double-clicked, or selected with a ui_accept input event (e.g. using Enter or Space on the keyboard).

signal item_activated

item_collapsed(TreeItem)

Emitted when an item is collapsed by a click on the folding arrow.

signal item_collapsed(TreeItem item)

Parameters

item TreeItem

item_edited

Emitted when an item is edited.

signal item_edited

item_icon_double_clicked

Emitted when an item's icon is double-clicked. For a signal that emits when any part of the item is double-clicked, see item_activated.

signal item_icon_double_clicked

item_mouse_selected(Vector2, int)

Emitted when an item is selected with a mouse button.

signal item_mouse_selected(Vector2 mouse_position, int mouse_button_index)

Parameters

mouse_position Vector2
mouse_button_index int

item_selected

Emitted when an item is selected.

signal item_selected

multi_selected(TreeItem, int, bool)

Emitted instead of item_selected if select_mode is set to Tree.SELECT_MULTI.

signal multi_selected(TreeItem item, int column, bool selected)

Parameters

item TreeItem
column int
selected bool

nothing_selected

Emitted when a left mouse button click does not select any item.

signal nothing_selected