gtk4/org.gtkkn.bindings.gtk/TreeView

TreeView

open class TreeView(val gtkTreeViewPointer: <Error class: unknown class><<Error class: unknown class>>) : Widget, Scrollable(source)

⚠️ Deprecated ⚠️

This is deprecated since version 4.10.

Use class@Gtk.ListView for lists, and class@Gtk.ColumnView for tabular lists

A widget for displaying both trees and lists

Widget that displays any object that implements the iface@Gtk.TreeModel interface.

Please refer to the section-tree-widget.html for an overview of all the objects and data types related to the tree widget and how they work together.

Coordinate systems in GtkTreeView API

Several different coordinate systems are exposed in the GtkTreeView API. These are:

Widget coordinates: Coordinates relative to the widget (usually widget->window).
Bin window coordinates: Coordinates relative to the window that GtkTreeView renders to.
Tree coordinates: Coordinates relative to the entire scrollable area of GtkTreeView. These coordinates start at (0, 0) for row 0 of the tree.

Several functions are available for converting between the different coordinate systems. The most common translations are between widget and bin window coordinates and between bin window and tree coordinates. For the former you can use method@Gtk.TreeView.convert_widget_to_bin_window_coords (and vice versa), for the latter method@Gtk.TreeView.convert_bin_window_to_tree_coords (and vice versa).

`GtkTreeView` as `GtkBuildable`

The GtkTreeView implementation of the GtkBuildable interface accepts class@Gtk.TreeViewColumn objects as <child> elements and exposes the internal class@Gtk.TreeSelection in UI definitions.

An example of a UI definition fragment with GtkTreeView:

<object class="GtkTreeView" id="treeview">
  <property name="model">liststore1</property>
  <child>
    <object class="GtkTreeViewColumn" id="test-column">
      <property name="title">Test</property>
      <child>
        <object class="GtkCellRendererText" id="test-renderer"/>
        <attributes>
          <attribute name="text">1</attribute>
        </attributes>
      </child>
    </object>
  </child>
  <child internal-child="selection">
    <object class="GtkTreeSelection" id="selection">
      <signal name="changed" handler="on_treeview_selection_changed"/>
    </object>
  </child>
</object>

CSS nodes

treeview.view
├── header
│   ├── button
│   │   ╰── [sort-indicator]
┊   ┊
│   ╰── button
│       ╰── [sort-indicator]
│
├── [rubberband]
╰── [dndtarget]

GtkTreeView has a main CSS node with name treeview and style class .view. It has a subnode with name header, which is the parent for all the column header widgets' CSS nodes.

Each column header consists of a button, which among other content, has a child with name sort-indicator, which carries the .ascending or .descending style classes when the column header should show a sort indicator. The CSS is expected to provide a suitable image using the -gtk-icon-source property.

For rubberband selection, a subnode with name rubberband is used.

For the drop target location during DND, a subnode with name dndtarget is used.

Skipped during bindings generation

parameter tx: tx: Out parameter is not supported
parameter wx: wx: Out parameter is not supported
parameter bx: bx: Out parameter is not supported
parameter wx: wx: Out parameter is not supported
parameter bx: bx: Out parameter is not supported
parameter tx: tx: Out parameter is not supported
parameter path: path: Out parameter is not supported
parameter path: path: Out parameter is not supported
parameter path: path: Out parameter is not supported
parameter path: path: Out parameter is not supported
method get_row_separator_func: Return type TreeViewRowSeparatorFunc is not supported
method get_search_equal_func: Return type TreeViewSearchEqualFunc is not supported
parameter model: model: Out parameter is not supported
parameter start_path: start_path: Out parameter is not supported
method insert_column_with_attributes: Varargs parameter is not supported
parameter path: path: Out parameter is not supported
method enable-grid-lines: Property has no getter nor setter

Constructors

TreeView

constructor()

This is deprecated since version 4.10.

constructor(model: TreeModel)

This is deprecated since version 4.10.

constructor(gtkTreeViewPointer: <Error class: unknown class><<Error class: unknown class>>)

Types

Companion

object Companion

Properties

accessibleRole

open val accessibleRole: AccessibleRole

The accessible role of the given GtkAccessible implementation.

activateOnSingleClick

open var activateOnSingleClick: Boolean

The activate-on-single-click property specifies whether the "row-activated" signal will be emitted after a single click.

canFocus

open var canFocus: Boolean

Whether the widget or any of its descendents can accept the input focus.

canTarget

open var canTarget: Boolean

Whether the widget can receive pointer events.

cssClasses

open var cssClasses: List<String>

A list of css classes applied to this widget.

cssName

open val cssName: String

The name of this widget in the CSS tree.

cursor

open var cursor: <Error class: unknown class>?

The cursor used by @widget.

enableSearch

open var enableSearch: Boolean

enableTreeLines

open var enableTreeLines: Boolean

expanderColumn

open var expanderColumn: TreeViewColumn?

fixedHeightMode

open var fixedHeightMode: Boolean

Setting the ::fixed-height-mode property to true speeds up GtkTreeView by assuming that all rows have the same height. Only enable this option if all rows are the same height. Please see gtk_tree_view_set_fixed_height_mode() for more information on this option.

focusable

open var focusable: Boolean

Whether this widget itself will accept the input focus.

focusOnClick

open var focusOnClick: Boolean

Whether the widget should grab focus when it is clicked with the mouse.

gtkAccessiblePointer

open override val gtkAccessiblePointer: <Error class: unknown class><<Error class: unknown class>>

gtkBuildablePointer

open override val gtkBuildablePointer: <Error class: unknown class><<Error class: unknown class>>

gtkConstraintTargetPointer

open override val gtkConstraintTargetPointer: <Error class: unknown class><<Error class: unknown class>>

gtkScrollablePointer

open override val gtkScrollablePointer: <Error class: unknown class><<Error class: unknown class>>

gtkTreeViewPointer

val gtkTreeViewPointer: <Error class: unknown class><<Error class: unknown class>>

gtkWidgetPointer

val gtkWidgetPointer: <Error class: unknown class><<Error class: unknown class>>

hadjustment

open var hadjustment: Adjustment?

Horizontal GtkAdjustment of the scrollable widget.

halign

open var halign: Align

How to distribute horizontal space if widget gets extra space.

hasTooltip

open var hasTooltip: Boolean

Enables or disables the emission of the ::query-tooltip signal on @widget.

headersClickable

open var headersClickable: Boolean

headersVisible

open var headersVisible: Boolean

hexpand

open var hexpand: Boolean

Whether to expand horizontally.

hexpandSet

open var hexpandSet: Boolean

Whether to use the hexpand property.

hoverExpand

open var hoverExpand: Boolean

Enables or disables the hover expansion mode of @tree_view. Hover expansion makes rows expand or collapse if the pointer moves over them.

hoverSelection

open var hoverSelection: Boolean

Enables or disables the hover selection mode of @tree_view. Hover selection makes the selected row follow the pointer. Currently, this works only for the selection modes %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.

hscrollPolicy

open var hscrollPolicy: ScrollablePolicy

Determines when horizontal scrolling should start.

layoutManager

open var layoutManager: LayoutManager?

The GtkLayoutManager instance to use to compute the preferred size of the widget, and allocate its children.

levelIndentation

open var levelIndentation: <Error class: unknown class>

Extra indentation for each level.

marginBottom

open var marginBottom: <Error class: unknown class>

Margin on bottom side of widget.

marginEnd

open var marginEnd: <Error class: unknown class>

Margin on end of widget, horizontally.

marginStart

open var marginStart: <Error class: unknown class>

Margin on start of widget, horizontally.

marginTop

open var marginTop: <Error class: unknown class>

Margin on top side of widget.

model

open var model: TreeModel?

name

open var name: String

The name of the widget.

opacity

open var opacity: <Error class: unknown class>

The requested opacity of the widget.

overflow

open var overflow: Overflow

How content outside the widget's content area is treated.

parent

open val parent: Widget?

The parent widget of this widget.

receivesDefault

open var receivesDefault: Boolean

Whether the widget will receive the default action when it is focused.

reorderable

open var reorderable: Boolean

root

open val root: Root?

The GtkRoot widget of the widget tree containing this widget.

rubberBanding

open var rubberBanding: Boolean

scaleFactor

open val scaleFactor: <Error class: unknown class>

The scale factor of the widget.

searchColumn

open var searchColumn: <Error class: unknown class>

showExpanders

open var showExpanders: Boolean

true if the view has expanders.

tooltipColumn

open var tooltipColumn: <Error class: unknown class>

tooltipMarkup

open var tooltipMarkup: String?

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

tooltipText

open var tooltipText: String?

Sets the text of tooltip to be the given string.

vadjustment

open var vadjustment: Adjustment?

Vertical GtkAdjustment of the scrollable widget.

valign

open var valign: Align

How to distribute vertical space if widget gets extra space.

vexpand

open var vexpand: Boolean

Whether to expand vertically.

vexpandSet

open var vexpandSet: Boolean

Whether to use the vexpand property.

vscrollPolicy

open var vscrollPolicy: ScrollablePolicy

Determines when vertical scrolling should start.

Functions

actionSetEnabled

open fun actionSetEnabled(actionName: String, enabled: Boolean)

Enable or disable an action installed with gtk_widget_class_install_action().

activateActionIfExists

open fun activateActionIfExists(name: String, args: <Error class: unknown class>? = null): Boolean

Looks up the action in the action groups associated with

activateDefault

open fun activateDefault()

Activates the default.activate action from @widget.

activateWidget

open fun activateWidget(): Boolean

For widgets that can be “activated” (buttons, menu items, etc.), this function activates them.

addController

open fun addController(controller: EventController)

Adds @controller to @widget so that it will receive events.

addCssClass

open fun addCssClass(cssClass: String)

Adds a style class to @widget.

addMnemonicLabel

open fun addMnemonicLabel(label: Widget)

Adds a widget to the list of mnemonic labels for this widget.

addTickCallback

open fun addTickCallback(callback: TickCallback): <Error class: unknown class>

Queues an animation frame update and adds a callback to be called before each frame.

allocate

open fun allocate( width: <Error class: unknown class>, height: <Error class: unknown class>, baseline: <Error class: unknown class>, transform: <Error class: unknown class>? = null)

This function is only used by GtkWidget subclasses, to assign a size, position and (optionally) baseline to their child widgets.

announce

open fun announce(message: String, priority: AccessibleAnnouncementPriority)

Requests the user's screen reader to announce the given message.

appendColumn

open fun appendColumn(column: TreeViewColumn): <Error class: unknown class>

This is deprecated since version 4.10.

childFocus

open fun childFocus(direction: DirectionType): Boolean

Called by widgets as the user moves around the window using keyboard shortcuts.

collapseAll

open fun collapseAll()

This is deprecated since version 4.10.

collapseRow

open fun collapseRow(path: TreePath): Boolean

This is deprecated since version 4.10.

columnsAutosize

open fun columnsAutosize()

This is deprecated since version 4.10.

computeBounds

open fun computeBounds(target: Widget, outBounds: <Error class: unknown class>): Boolean

Computes the bounds for @widget in the coordinate space of @target.

computeExpand

open fun computeExpand(orientation: Orientation): Boolean

Computes whether a container should give this widget extra space when possible.

computePoint

open fun computePoint(target: Widget, point: <Error class: unknown class>, outPoint: <Error class: unknown class>): Boolean

Translates the given @point in @widget's coordinates to coordinates relative to @target’s coordinate system.

computeTransform

open fun computeTransform(target: Widget, outTransform: <Error class: unknown class>): Boolean

Computes a matrix suitable to describe a transformation from

contains

open fun contains(x: <Error class: unknown class>, y: <Error class: unknown class>): Boolean

Tests if the point at (@x, @y) is contained in @widget.

createPangoContext

open fun createPangoContext(): <Error class: unknown class>

Creates a new PangoContext with the appropriate font map, font options, font description, and base direction for drawing text for this widget.

createPangoLayout

open fun createPangoLayout(text: String? = null): <Error class: unknown class>

Creates a new PangoLayout with the appropriate font map, font description, and base direction for drawing text for this widget.

createRowDragIcon

open fun createRowDragIcon(path: TreePath): <Error class: unknown class>?

This is deprecated since version 4.10.

disposeTemplate

open fun disposeTemplate(widgetType: <Error class: unknown class>)

Clears the template children for the given widget.

dragCheckThreshold

open fun dragCheckThreshold( startX: <Error class: unknown class>, startY: <Error class: unknown class>, currentX: <Error class: unknown class>, currentY: <Error class: unknown class>): Boolean

Checks to see if a drag movement has passed the GTK drag threshold.

emitColumnsChanged

fun emitColumnsChanged()

Emits the "columns-changed" signal. See onColumnsChanged.

emitCursorChanged

fun emitCursorChanged()

Emits the "cursor-changed" signal. See onCursorChanged.

emitDestroy

fun emitDestroy()

Emits the "destroy" signal. See onDestroy.

emitDirectionChanged

fun emitDirectionChanged(previousDirection: TextDirection)

Emits the "direction-changed" signal. See onDirectionChanged.

emitHide

fun emitHide()

Emits the "hide" signal. See onHide.

emitMap

fun emitMap()

Emits the "map" signal. See onMap.

emitMoveFocus

fun emitMoveFocus(direction: DirectionType)

Emits the "move-focus" signal. See onMoveFocus.

emitRealize

fun emitRealize()

Emits the "realize" signal. See onRealize.

emitRowActivated

fun emitRowActivated(path: TreePath, column: TreeViewColumn?)

Emits the "row-activated" signal. See onRowActivated.

emitRowCollapsed

fun emitRowCollapsed(iter: TreeIter, path: TreePath)

Emits the "row-collapsed" signal. See onRowCollapsed.

emitRowExpanded

fun emitRowExpanded(iter: TreeIter, path: TreePath)

Emits the "row-expanded" signal. See onRowExpanded.

emitShow

fun emitShow()

Emits the "show" signal. See onShow.

emitStateFlagsChanged

fun emitStateFlagsChanged(flags: StateFlags)

Emits the "state-flags-changed" signal. See onStateFlagsChanged.

emitUnmap

fun emitUnmap()

Emits the "unmap" signal. See onUnmap.

emitUnrealize

fun emitUnrealize()

Emits the "unrealize" signal. See onUnrealize.

enableModelDragDest

open fun enableModelDragDest(formats: <Error class: unknown class>, actions: <Error class: unknown class>)

This is deprecated since version 4.10.

enableModelDragSource

open fun enableModelDragSource( startButtonMask: <Error class: unknown class>, formats: <Error class: unknown class>, actions: <Error class: unknown class>)

This is deprecated since version 4.10.

errorBell

open fun errorBell()

Notifies the user about an input-related error on this widget.

expandAll

open fun expandAll()

This is deprecated since version 4.10.

expandRow

open fun expandRow(path: TreePath, openAll: Boolean): Boolean

This is deprecated since version 4.10.

expandToPath

open fun expandToPath(path: TreePath)

This is deprecated since version 4.10.

getAccessibleParent

open fun getAccessibleParent(): Accessible?

Retrieves the accessible parent for an accessible object.

getAccessibleRole

open fun getAccessibleRole(): AccessibleRole

Retrieves the accessible role of an accessible object.

getAllocatedBaseline

open fun getAllocatedBaseline(): <Error class: unknown class>

This is deprecated since version 4.12.

getAllocatedHeight

open fun getAllocatedHeight(): <Error class: unknown class>

This is deprecated since version 4.12.

getAllocatedWidth

open fun getAllocatedWidth(): <Error class: unknown class>

This is deprecated since version 4.12.

getAllocation

open fun getAllocation(allocation: <Error class: unknown class>)

This is deprecated since version 4.12.

getAncestor

open fun getAncestor(widgetType: <Error class: unknown class>): Widget?

Gets the first ancestor of @widget with type @widget_type.

getAtContext

open fun getAtContext(): AtContext

Retrieves the accessible implementation for the given GtkAccessible.

getBackgroundArea

open fun getBackgroundArea(path: TreePath? = null, column: TreeViewColumn? = null, rect: <Error class: unknown class>)

This is deprecated since version 4.10.

getBaseline

open fun getBaseline(): <Error class: unknown class>

Returns the baseline that has currently been allocated to @widget.

getBorder

open fun getBorder(border: Border): Boolean

Returns the size of a non-scrolling border around the outside of the scrollable.

getBuildableId

open fun getBuildableId(): String?

Gets the ID of the @buildable object.

getCellArea

open fun getCellArea(path: TreePath? = null, column: TreeViewColumn? = null, rect: <Error class: unknown class>)

This is deprecated since version 4.10.

getChildVisible

open fun getChildVisible(): Boolean

Gets the value set with gtk_widget_set_child_visible().

getClipboard

open fun getClipboard(): <Error class: unknown class>

Gets the clipboard object for @widget.

getColor

open fun getColor(color: <Error class: unknown class>)

Gets the current foreground color for the widget’s CSS style.

getColumn

open fun getColumn(n: <Error class: unknown class>): TreeViewColumn?

This is deprecated since version 4.10.

getColumns

open fun getColumns(): <Error class: unknown class>

This is deprecated since version 4.10.

getDirection

open fun getDirection(): TextDirection

Gets the reading direction for a particular widget.

getDisplay

open fun getDisplay(): <Error class: unknown class>

Get the GdkDisplay for the toplevel window associated with this widget.

getFirstAccessibleChild

open fun getFirstAccessibleChild(): Accessible?

Retrieves the first accessible child of an accessible object.

getFirstChild

open fun getFirstChild(): Widget?

Returns the widget’s first child.

getFocusChild

open fun getFocusChild(): Widget?

Returns the current focus child of @widget.

getFontMap

open fun getFontMap(): <Error class: unknown class>?

Gets the font map of @widget.

getFontOptions

open fun getFontOptions(): <Error class: unknown class>?

This is deprecated since version 4.16.

---

getFrameClock

open fun getFrameClock(): <Error class: unknown class>?

Obtains the frame clock for a widget.

getGridLines

open fun getGridLines(): TreeViewGridLines

This is deprecated since version 4.10.

getHadjustment

open fun getHadjustment(): Adjustment?

Retrieves the GtkAdjustment used for horizontal scrolling.

getHeight

open fun getHeight(): <Error class: unknown class>

Returns the content height of the widget.

getHscrollPolicy

open fun getHscrollPolicy(): ScrollablePolicy

Gets the horizontal GtkScrollablePolicy.

getLastChild

open fun getLastChild(): Widget?

Returns the widget’s last child.

getMapped

open fun getMapped(): Boolean

Whether the widget is mapped.

getNative

open fun getNative(): Native?

Returns the nearest GtkNative ancestor of @widget.

getNColumns

open fun getNColumns(): <Error class: unknown class>

This is deprecated since version 4.10.

getNextAccessibleSibling

open fun getNextAccessibleSibling(): Accessible?

Retrieves the next accessible sibling of an accessible object

getNextSibling

open fun getNextSibling(): Widget?

Returns the widget’s next sibling.

getPangoContext

open fun getPangoContext(): <Error class: unknown class>

Gets a PangoContext with the appropriate font map, font description, and base direction for this widget.

getPlatformState

open fun getPlatformState(state: AccessiblePlatformState): Boolean

Query a platform state, such as focus.

getPreferredSize

open fun getPreferredSize(minimumSize: Requisition?, naturalSize: Requisition?)

Retrieves the minimum and natural size of a widget, taking into account the widget’s preference for height-for-width management.

getPrevSibling

open fun getPrevSibling(): Widget?

Returns the widget’s previous sibling.

getPrimaryClipboard

open fun getPrimaryClipboard(): <Error class: unknown class>

Gets the primary clipboard of @widget.

getRealized

open fun getRealized(): Boolean

Determines whether @widget is realized.

getRequestMode

open fun getRequestMode(): SizeRequestMode

Gets whether the widget prefers a height-for-width layout or a width-for-height layout.

getSearchEntry

open fun getSearchEntry(): Editable?

This is deprecated since version 4.10.

getSelection

open fun getSelection(): TreeSelection

This is deprecated since version 4.10.

getSensitive

open fun getSensitive(): Boolean

Returns the widget’s sensitivity.

getSettings

open fun getSettings(): Settings

Gets the settings object holding the settings used for this widget.

getSize

open fun getSize(orientation: Orientation): <Error class: unknown class>

Returns the content width or height of the widget.

getStateFlags

open fun getStateFlags(): StateFlags

Returns the widget state as a flag set.

getStyleContext

open fun getStyleContext(): StyleContext

This is deprecated since version 4.10.

getTemplateChild

open fun getTemplateChild(widgetType: <Error class: unknown class>, name: String): <Error class: unknown class>

Fetch an object build from the template XML for @widget_type in this @widget instance.

getVadjustment

open fun getVadjustment(): Adjustment?

Retrieves the GtkAdjustment used for vertical scrolling.

getVisible

open fun getVisible(): Boolean

Determines whether the widget is visible.

getVisibleRect

open fun getVisibleRect(visibleRect: <Error class: unknown class>)

This is deprecated since version 4.10.

getVscrollPolicy

open fun getVscrollPolicy(): ScrollablePolicy

Gets the vertical GtkScrollablePolicy.

getWidth

open fun getWidth(): <Error class: unknown class>

Returns the content width of the widget.

grabFocus

open fun grabFocus(): Boolean

Causes @widget to have the keyboard focus for the GtkWindow it's inside.

hasCssClass

open fun hasCssClass(cssClass: String): Boolean

Returns whether @css_class is currently applied to @widget.

hasDefault

open fun hasDefault(): Boolean

Determines whether @widget is the current default widget within its toplevel.

hasFocus

open fun hasFocus(): Boolean

Determines if the widget has the global input focus.

hasVisibleFocus

open fun hasVisibleFocus(): Boolean

Determines if the widget should show a visible indication that it has the global input focus.

hide

open fun hide()

This is deprecated since version 4.10.

inDestruction

open fun inDestruction(): Boolean

Returns whether the widget is currently being destroyed.

initTemplate

open fun initTemplate()

Creates and initializes child widgets defined in templates.

insertActionGroup

open fun insertActionGroup(name: String, group: <Error class: unknown class>? = null)

Inserts @group into @widget.

insertAfter

open fun insertAfter(parent: Widget, previousSibling: Widget? = null)

Inserts @widget into the child widget list of @parent.

insertBefore

open fun insertBefore(parent: Widget, nextSibling: Widget? = null)

Inserts @widget into the child widget list of @parent.

insertColumn

open fun insertColumn(column: TreeViewColumn, position: <Error class: unknown class>): <Error class: unknown class>

This is deprecated since version 4.10.

insertColumnWithDataFunc

open fun insertColumnWithDataFunc( position: <Error class: unknown class>, title: String, cell: CellRenderer, func: TreeCellDataFunc): <Error class: unknown class>

This is deprecated since version 4.10.

isAncestor

open fun isAncestor(ancestor: Widget): Boolean

Determines whether @widget is somewhere inside @ancestor, possibly with intermediate containers.

isDrawable

open fun isDrawable(): Boolean

Determines whether @widget can be drawn to.

isFocus

open fun isFocus(): Boolean

Determines if the widget is the focus widget within its toplevel.

isRubberBandingActive

open fun isRubberBandingActive(): Boolean

This is deprecated since version 4.10.

isSensitive

open fun isSensitive(): Boolean

Returns the widget’s effective sensitivity.

isVisible

open fun isVisible(): Boolean

Determines whether the widget and all its parents are marked as visible.

keynavFailed

open fun keynavFailed(direction: DirectionType): Boolean

Emits the ::keynav-failed signal on the widget.

listMnemonicLabels

open fun listMnemonicLabels(): <Error class: unknown class>

Returns the widgets for which this widget is the target of a mnemonic.

map

open fun map()

Causes a widget to be mapped if it isn’t already.

mapExpandedRows

open fun mapExpandedRows(func: TreeViewMappingFunc)

This is deprecated since version 4.10.

mnemonicActivate

open fun mnemonicActivate(groupCycling: Boolean): Boolean

Emits the ::mnemonic-activate signal.

moveColumnAfter

open fun moveColumnAfter(column: TreeViewColumn, baseColumn: TreeViewColumn? = null)

This is deprecated since version 4.10.

observeChildren

open fun observeChildren(): <Error class: unknown class>

Returns a GListModel to track the children of @widget.

observeControllers

open fun observeControllers(): <Error class: unknown class>

Returns a GListModel to track the class@Gtk.EventControllers of @widget.

onColumnsChanged

fun onColumnsChanged(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

The number of columns of the treeview has changed.

onCursorChanged

fun onCursorChanged(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

The position of the cursor (focused cell) has changed.

onDestroy

fun onDestroy(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Signals that all holders of a reference to the widget should release the reference that they hold.

onDirectionChanged

fun onDirectionChanged( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (previousDirection: TextDirection) -> Unit): <Error class: unknown class>

Emitted when the text direction of a widget changes.

onExpandCollapseCursorRow

fun onExpandCollapseCursorRow( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (object: Boolean, p0: Boolean, p1: Boolean) -> Boolean): <Error class: unknown class>

onHide

fun onHide(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is hidden.

onKeynavFailed

fun onKeynavFailed( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (direction: DirectionType) -> Boolean): <Error class: unknown class>

Emitted if keyboard navigation fails.

onMap

fun onMap(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is going to be mapped.

onMnemonicActivate

fun onMnemonicActivate( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (groupCycling: Boolean) -> Boolean): <Error class: unknown class>

Emitted when a widget is activated via a mnemonic.

onMoveCursor

fun onMoveCursor( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (step: MovementStep, <Error class: unknown class>, extend: Boolean, modify: Boolean) -> Boolean): <Error class: unknown class>

The GtkTreeView::move-cursor signal is a class@Gtk.SignalAction which gets emitted when the user presses one of the cursor keys.

onMoveFocus

fun onMoveFocus( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (direction: DirectionType) -> Unit): <Error class: unknown class>

Emitted when the focus is moved.

onQueryTooltip

fun onQueryTooltip( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (<Error class: unknown class>, <Error class: unknown class>, keyboardMode: Boolean, tooltip: Tooltip) -> Boolean): <Error class: unknown class>

Emitted when the widget’s tooltip is about to be shown.

onRealize

fun onRealize(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is associated with a GdkSurface.

onRowActivated

fun onRowActivated( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (path: TreePath, column: TreeViewColumn?) -> Unit): <Error class: unknown class>

The "row-activated" signal is emitted when the method method@Gtk.TreeView.row_activated is called.

onRowCollapsed

fun onRowCollapsed( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (iter: TreeIter, path: TreePath) -> Unit): <Error class: unknown class>

The given row has been collapsed (child nodes are hidden).

onRowExpanded

fun onRowExpanded( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (iter: TreeIter, path: TreePath) -> Unit): <Error class: unknown class>

The given row has been expanded (child nodes are shown).

onSelectAll

fun onSelectAll(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Boolean): <Error class: unknown class>

onSelectCursorParent

fun onSelectCursorParent(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Boolean): <Error class: unknown class>

onSelectCursorRow

fun onSelectCursorRow( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (object: Boolean) -> Boolean): <Error class: unknown class>

onShow

fun onShow(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is shown.

onStartInteractiveSearch

fun onStartInteractiveSearch(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Boolean): <Error class: unknown class>

onStateFlagsChanged

fun onStateFlagsChanged( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (flags: StateFlags) -> Unit): <Error class: unknown class>

Emitted when the widget state changes.

onTestCollapseRow

fun onTestCollapseRow( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (iter: TreeIter, path: TreePath) -> Boolean): <Error class: unknown class>

The given row is about to be collapsed (hide its children nodes). Use this signal if you need to control the collapsibility of individual rows.

onTestExpandRow

fun onTestExpandRow( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (iter: TreeIter, path: TreePath) -> Boolean): <Error class: unknown class>

The given row is about to be expanded (show its children nodes). Use this signal if you need to control the expandability of individual rows.

onToggleCursorRow

fun onToggleCursorRow(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Boolean): <Error class: unknown class>

onUnmap

fun onUnmap(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when @widget is going to be unmapped.

onUnrealize

fun onUnrealize(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>

Emitted when the GdkSurface associated with @widget is destroyed.

onUnselectAll

fun onUnselectAll(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Boolean): <Error class: unknown class>

pick

open fun pick(x: <Error class: unknown class>, y: <Error class: unknown class>, flags: PickFlags): Widget?

Finds the descendant of @widget closest to the point (@x, @y).

queueAllocate

open fun queueAllocate()

Flags the widget for a rerun of the vfunc@Gtk.Widget.size_allocate function.

queueDraw

open fun queueDraw()

Schedules this widget to be redrawn in the paint phase of the current or the next frame.

queueResize

open fun queueResize()

Flags a widget to have its size renegotiated.

realize

open fun realize()

Creates the GDK resources associated with a widget.

removeColumn

open fun removeColumn(column: TreeViewColumn): <Error class: unknown class>

This is deprecated since version 4.10.

removeController

open fun removeController(controller: EventController)

Removes @controller from @widget, so that it doesn't process events anymore.

removeCssClass

open fun removeCssClass(cssClass: String)

Removes a style from @widget.

removeMnemonicLabel

open fun removeMnemonicLabel(label: Widget)

Removes a widget from the list of mnemonic labels for this widget.

removeTickCallback

open fun removeTickCallback(id: <Error class: unknown class>)

Removes a tick callback previously registered with gtk_widget_add_tick_callback().

resetProperty

open fun resetProperty(property: AccessibleProperty)

Resets the accessible @property to its default value.

resetRelation

open fun resetRelation(relation: AccessibleRelation)

Resets the accessible @relation to its default value.

resetState

open fun resetState(state: AccessibleState)

Resets the accessible @state to its default value.

rowActivated

open fun rowActivated(path: TreePath, column: TreeViewColumn? = null)

This is deprecated since version 4.10.

rowExpanded

open fun rowExpanded(path: TreePath): Boolean

This is deprecated since version 4.10.

scrollToCell

open fun scrollToCell( path: TreePath? = null, column: TreeViewColumn? = null, useAlign: Boolean, rowAlign: <Error class: unknown class>, colAlign: <Error class: unknown class>)

This is deprecated since version 4.10.

scrollToPoint