Class (GI Class)

Gtk-4.0GtkIconViewDeprecated 4.10

Gtk.IconView is a widget which displays data in a grid of icons.

An example GtkIconView

Gtk.IconView provides an alternative view on a Gtk.TreeModel. It displays the model as a grid of icons with labels. Like Gtk.TreeView, it allows to select one or multiple items (depending on the selection mode, see Gtk.IconView.set_selection_mode). In addition to selection with the arrow keys, Gtk.IconView supports rubberband selection, which is controlled by dragging the pointer.

Note that if the tree model is backed by an actual tree store (as opposed to a flat list where the mapping to icons is obvious), Gtk.IconView will only display the first level of the tree and ignore the tree’s branches.

iconview.view
╰── [rubberband]

Gtk.IconView has a single CSS node with name iconview and style class .view. For rubberband selection, a subnode with name rubberband is used.

since 4.10: Use Gtk.GridView instead

Hierarchy (View Summary)

Implements

Index

Constructors

Properties

Properties - Inherited from Gtk.Widget

Accessors

Accessors - Inherited from Gtk.Accessible

Accessors - Inherited from Gtk.Scrollable

Accessors - Inherited from Gtk.Widget

Methods

_init add_attribute announce bind_property bind_property_full block_signal_handler clear clear_attributes connect connect_after create_drag_icon disconnect emit enable_model_drag_dest enable_model_drag_source force_floating freeze_notify get_accessible_parent get_accessible_role get_activate_on_single_click get_area get_at_context get_border get_bounds get_buildable_id get_cell_rect get_cells get_column_spacing get_columns get_cursor get_data get_dest_item_at_pos get_drag_dest_item get_first_accessible_child get_hadjustment get_hscroll_policy get_item_at_pos get_item_column get_item_orientation get_item_padding get_item_row get_item_width get_margin get_markup_column get_model get_next_accessible_sibling get_path_at_pos get_pixbuf_column get_platform_state get_property get_qdata get_reorderable get_row_spacing get_selected_items get_selection_mode get_spacing get_text_column get_tooltip_column get_tooltip_context get_vadjustment get_visible_range get_vscroll_policy getv is_floating item_activated notify notify_by_pspec pack_end pack_start path_is_selected ref ref_sink reorder reset_property reset_relation reset_state run_dispose scroll_to_path select_all select_path selected_foreach set set_accessible_parent set_activate_on_single_click set_cell_data_func set_column_spacing set_columns set_cursor set_data set_drag_dest_item set_hadjustment set_hscroll_policy set_item_orientation set_item_padding set_item_width set_margin set_markup_column set_model set_pixbuf_column set_property set_reorderable set_row_spacing set_selection_mode set_spacing set_text_column set_tooltip_cell set_tooltip_column set_tooltip_item set_vadjustment set_vscroll_policy steal_data steal_qdata stop_emission_by_name thaw_notify unblock_signal_handler unref unselect_all unselect_path unset_model_drag_dest unset_model_drag_source update_next_accessible_sibling update_platform_state update_property update_relation update_state vfunc_add_attribute vfunc_add_child vfunc_clear vfunc_clear_attributes vfunc_constructed vfunc_custom_finished vfunc_custom_tag_end vfunc_custom_tag_start vfunc_dispatch_properties_changed vfunc_dispose vfunc_finalize vfunc_get_accessible_parent vfunc_get_area vfunc_get_at_context vfunc_get_border vfunc_get_bounds vfunc_get_cells vfunc_get_first_accessible_child vfunc_get_id vfunc_get_internal_child vfunc_get_next_accessible_sibling vfunc_get_platform_state vfunc_get_property vfunc_notify vfunc_pack_end vfunc_pack_start vfunc_parser_finished vfunc_reorder vfunc_set_buildable_property vfunc_set_cell_data_func vfunc_set_id vfunc_set_property watch_closure new new_with_area new_with_model

Methods - Inherited from Gtk.Widget

action_set_enabled activate activate_action activate_default add_controller add_css_class add_mnemonic_label add_tick_callback allocate child_focus compute_bounds compute_expand compute_point compute_transform contains create_pango_context create_pango_layout dispose_template drag_check_threshold error_bell get_allocated_baseline get_allocated_height get_allocated_width get_allocation get_ancestor get_baseline get_can_focus get_can_target get_child_visible get_clipboard get_color get_css_classes get_css_name get_direction get_display get_first_child get_focus_child get_focus_on_click get_focusable get_font_map get_font_options get_frame_clock get_halign get_has_tooltip get_height get_hexpand get_hexpand_set get_last_child get_layout_manager get_limit_events get_mapped get_margin_bottom get_margin_end get_margin_start get_margin_top get_name get_native get_next_sibling get_opacity get_overflow get_pango_context get_parent get_preferred_size get_prev_sibling get_primary_clipboard get_realized get_receives_default get_request_mode get_root get_scale_factor get_sensitive get_settings get_size get_size_request get_state_flags get_style_context get_template_child get_tooltip_markup get_tooltip_text get_valign get_vexpand get_vexpand_set get_visible get_width grab_focus has_css_class has_visible_focus hide in_destruction init_template insert_action_group insert_after insert_before is_ancestor is_drawable is_focus is_sensitive is_visible keynav_failed list_mnemonic_labels map measure mnemonic_activate observe_children observe_controllers pick queue_allocate queue_draw queue_resize realize remove_controller remove_css_class remove_mnemonic_label remove_tick_callback set_can_focus set_can_target set_child_visible set_css_classes set_cursor_from_name set_direction set_focus_child set_focus_on_click set_focusable set_font_map set_font_options set_halign set_has_tooltip set_hexpand set_hexpand_set set_layout_manager set_limit_events set_margin_bottom set_margin_end set_margin_start set_margin_top set_name set_opacity set_overflow set_parent set_receives_default set_sensitive set_size_request set_state_flags set_tooltip_markup set_tooltip_text set_valign set_vexpand set_vexpand_set set_visible should_layout show size_allocate snapshot_child translate_coordinates trigger_tooltip_query unmap unparent unrealize unset_state_flags vfunc_compute_expand vfunc_contains vfunc_css_changed vfunc_direction_changed vfunc_focus vfunc_get_request_mode vfunc_grab_focus vfunc_hide vfunc_keynav_failed vfunc_map vfunc_measure vfunc_mnemonic_activate vfunc_move_focus vfunc_query_tooltip vfunc_realize vfunc_root vfunc_set_focus_child vfunc_show vfunc_size_allocate vfunc_snapshot vfunc_state_flags_changed vfunc_system_setting_changed vfunc_unmap vfunc_unrealize vfunc_unroot _classInit add_shortcut bind_template_callback_full bind_template_child_full compat_control find_property get_accessible_role get_activate_signal get_css_name get_default_direction get_layout_manager_type install_action install_properties install_property install_property_action interface_find_property interface_install_property interface_list_properties list_properties newv override_property query_action set_accessible_role set_activate_signal set_activate_signal_from_name set_css_name set_default_direction set_layout_manager_type set_template set_template_from_resource set_template_scope

Constructors

Properties

Compile-time signal type information.

This instance property is generated only for TypeScript type checking. It is not defined at runtime and should not be accessed in JS code.

$gtype: GType<Gtk.IconView>

Properties - Inherited from Gtk.Widget

"[iterator]": () => IterableIterator<Gtk.Widget>

Gtk.Widget is an iterable of its children.

Accessors

  • get activate_on_single_click(): boolean

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

    Returns boolean

  • set activate_on_single_click(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get activateOnSingleClick(): boolean

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

    Returns boolean

  • set activateOnSingleClick(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get column_spacing(): number

    The column-spacing property specifies the space which is inserted between the columns of the icon view.

    Returns number

  • set column_spacing(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get columns(): number

    The columns property contains the number of the columns in which the items should be displayed. If it is -1, the number of columns will be chosen automatically to fill the available area.

    Returns number

  • set columns(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get columnSpacing(): number

    The column-spacing property specifies the space which is inserted between the columns of the icon view.

    Returns number

  • set columnSpacing(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get item_padding(): number

    The item-padding property specifies the padding around each of the icon view's item.

    Returns number

  • set item_padding(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get item_width(): number

    The item-width property specifies the width to use for each item. If it is set to -1, the icon view will automatically determine a suitable item size.

    Returns number

  • set item_width(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get itemPadding(): number

    The item-padding property specifies the padding around each of the icon view's item.

    Returns number

  • set itemPadding(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get itemWidth(): number

    The item-width property specifies the width to use for each item. If it is set to -1, the icon view will automatically determine a suitable item size.

    Returns number

  • set itemWidth(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get margin(): number

    The margin property specifies the space which is inserted at the edges of the icon view.

    Returns number

  • set margin(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get markup_column(): number

    The ::markup-column property contains the number of the model column containing markup information to be displayed. The markup column must be of type G_TYPE_STRING. If this property and the :text-column property are both set to column numbers, it overrides the text column. If both are set to -1, no texts are displayed.

    Returns number

  • set markup_column(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get markupColumn(): number

    The ::markup-column property contains the number of the model column containing markup information to be displayed. The markup column must be of type G_TYPE_STRING. If this property and the :text-column property are both set to column numbers, it overrides the text column. If both are set to -1, no texts are displayed.

    Returns number

  • set markupColumn(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get pixbuf_column(): number

    The ::pixbuf-column property contains the number of the model column containing the pixbufs which are displayed. The pixbuf column must be of type GDK_TYPE_PIXBUF. Setting this property to -1 turns off the display of pixbufs.

    Returns number

  • set pixbuf_column(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get pixbufColumn(): number

    The ::pixbuf-column property contains the number of the model column containing the pixbufs which are displayed. The pixbuf column must be of type GDK_TYPE_PIXBUF. Setting this property to -1 turns off the display of pixbufs.

    Returns number

  • set pixbufColumn(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get row_spacing(): number

    The row-spacing property specifies the space which is inserted between the rows of the icon view.

    Returns number

  • set row_spacing(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get rowSpacing(): number

    The row-spacing property specifies the space which is inserted between the rows of the icon view.

    Returns number

  • set rowSpacing(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get spacing(): number

    The spacing property specifies the space which is inserted between the cells (i.e. the icon and the text) of an item.

    Returns number

  • set spacing(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get text_column(): number

    The ::text-column property contains the number of the model column containing the texts which are displayed. The text column must be of type G_TYPE_STRING. If this property and the :markup-column property are both set to -1, no texts are displayed.

    Returns number

  • set text_column(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get textColumn(): number

    The ::text-column property contains the number of the model column containing the texts which are displayed. The text column must be of type G_TYPE_STRING. If this property and the :markup-column property are both set to -1, no texts are displayed.

    Returns number

  • set textColumn(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get tooltip_column(): number

    The column of the icon view model which is being used for displaying tooltips on it's rows.

    Returns number

  • set tooltip_column(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get tooltipColumn(): number

    The column of the icon view model which is being used for displaying tooltips on it's rows.

    Returns number

  • set tooltipColumn(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

Accessors - Inherited from Gtk.Accessible

Accessors - Inherited from Gtk.Scrollable

Accessors - Inherited from Gtk.Widget

  • get can_focus(): boolean

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

    This property is meant to be set by widget implementations, typically in their instance init function.

    Returns boolean

  • set can_focus(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get can_target(): boolean

    Whether the widget can receive pointer events.

    Returns boolean

  • set can_target(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get canFocus(): boolean

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

    This property is meant to be set by widget implementations, typically in their instance init function.

    Returns boolean

  • set canFocus(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get canTarget(): boolean

    Whether the widget can receive pointer events.

    Returns boolean

  • set canTarget(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get css_classes(): string[]

    A list of css classes applied to this widget.

    Returns string[]

  • set css_classes(val: string[]): void

    Parameters

    • Deprecatedval: string[]

    Returns void

  • get css_name(): string

    The name of this widget in the CSS tree.

    This property is meant to be set by widget implementations, typically in their instance init function.

    Returns string

  • get cssClasses(): string[]

    A list of css classes applied to this widget.

    Returns string[]

  • set cssClasses(val: string[]): void

    Parameters

    • Deprecatedval: string[]

    Returns void

  • get cssName(): string

    The name of this widget in the CSS tree.

    This property is meant to be set by widget implementations, typically in their instance init function.

    Returns string

  • get focus_on_click(): boolean

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

    This property is only relevant for widgets that can take focus.

    Returns boolean

  • set focus_on_click(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get focusable(): boolean

    Whether this widget itself will accept the input focus.

    Returns boolean

  • set focusable(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get focusOnClick(): boolean

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

    This property is only relevant for widgets that can take focus.

    Returns boolean

  • set focusOnClick(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get has_default(): boolean

    Whether the widget is the default widget.

    Returns boolean

  • get has_focus(): boolean

    Whether the widget has the input focus.

    Returns boolean

  • get has_tooltip(): boolean

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

    A true value indicates that widget can have a tooltip, in this case the widget will be queried using Gtk.Widget::query-tooltip to determine whether it will provide a tooltip or not.

    Returns boolean

  • set has_tooltip(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get hasDefault(): boolean

    Whether the widget is the default widget.

    Returns boolean

  • get hasFocus(): boolean

    Whether the widget has the input focus.

    Returns boolean

  • get hasTooltip(): boolean

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

    A true value indicates that widget can have a tooltip, in this case the widget will be queried using Gtk.Widget::query-tooltip to determine whether it will provide a tooltip or not.

    Returns boolean

  • set hasTooltip(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get height_request(): number

    Overrides for height request of the widget.

    If this is -1, the natural request will be used.

    Returns number

  • set height_request(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get heightRequest(): number

    Overrides for height request of the widget.

    If this is -1, the natural request will be used.

    Returns number

  • set heightRequest(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get hexpand(): boolean

    Whether to expand horizontally.

    Returns boolean

  • set hexpand(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get hexpand_set(): boolean

    Whether to use the hexpand property.

    Returns boolean

  • set hexpand_set(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get hexpandSet(): boolean

    Whether to use the hexpand property.

    Returns boolean

  • set hexpandSet(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get limit_events(): boolean

    Makes this widget act like a modal dialog, with respect to event delivery.

    Global event controllers will not handle events with targets inside the widget, unless they are set up to ignore propagation limits. See Gtk.EventController.set_propagation_limit.

    Returns boolean

    4.18

  • set limit_events(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get limitEvents(): boolean

    Makes this widget act like a modal dialog, with respect to event delivery.

    Global event controllers will not handle events with targets inside the widget, unless they are set up to ignore propagation limits. See Gtk.EventController.set_propagation_limit.

    Returns boolean

    4.18

  • set limitEvents(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get margin_bottom(): number

    Margin on bottom side of widget.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set margin_bottom(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get margin_end(): number

    Margin on end of widget, horizontally.

    This property supports left-to-right and right-to-left text directions.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set margin_end(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get margin_start(): number

    Margin on start of widget, horizontally.

    This property supports left-to-right and right-to-left text directions.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set margin_start(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get margin_top(): number

    Margin on top side of widget.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set margin_top(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get marginBottom(): number

    Margin on bottom side of widget.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set marginBottom(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get marginEnd(): number

    Margin on end of widget, horizontally.

    This property supports left-to-right and right-to-left text directions.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set marginEnd(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get marginStart(): number

    Margin on start of widget, horizontally.

    This property supports left-to-right and right-to-left text directions.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set marginStart(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get marginTop(): number

    Margin on top side of widget.

    This property adds margin outside of the widget's normal size request, the margin will be added in addition to the size from Gtk.Widget.set_size_request for example.

    Returns number

  • set marginTop(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get opacity(): number

    The requested opacity of the widget.

    Returns number

  • set opacity(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get receives_default(): boolean

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

    Returns boolean

  • set receives_default(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get receivesDefault(): boolean

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

    Returns boolean

  • set receivesDefault(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get scale_factor(): number

    The scale factor of the widget.

    Returns number

  • get scaleFactor(): number

    The scale factor of the widget.

    Returns number

  • get sensitive(): boolean

    Whether the widget responds to input.

    Returns boolean

  • set sensitive(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get tooltip_markup(): string

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

    Also see Gtk.Tooltip.set_markup.

    This is a convenience property which will take care of getting the tooltip shown if the given string is not NULL: Gtk.Widget.has_tooltip will automatically be set to true and there will be taken care of Gtk.Widget::query-tooltip in the default signal handler.

    Note that if both Gtk.Widget.tooltip_text and Gtk.Widget.tooltip_markup are set, the last one wins.

    Returns string

  • set tooltip_markup(val: string): void

    Parameters

    • Deprecatedval: string

    Returns void

  • get tooltipMarkup(): string

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

    Also see Gtk.Tooltip.set_markup.

    This is a convenience property which will take care of getting the tooltip shown if the given string is not NULL: Gtk.Widget.has_tooltip will automatically be set to true and there will be taken care of Gtk.Widget::query-tooltip in the default signal handler.

    Note that if both Gtk.Widget.tooltip_text and Gtk.Widget.tooltip_markup are set, the last one wins.

    Returns string

  • set tooltipMarkup(val: string): void

    Parameters

    • Deprecatedval: string

    Returns void

  • get vexpand(): boolean

    Whether to expand vertically.

    Returns boolean

  • set vexpand(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get vexpand_set(): boolean

    Whether to use the vexpand property.

    Returns boolean

  • set vexpand_set(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get vexpandSet(): boolean

    Whether to use the vexpand property.

    Returns boolean

  • set vexpandSet(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get visible(): boolean

    Whether the widget is visible.

    Returns boolean

  • set visible(val: boolean): void

    Parameters

    • Deprecatedval: boolean

    Returns void

  • get width_request(): number

    Overrides for width request of the widget.

    If this is -1, the natural request will be used.

    Returns number

  • set width_request(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

  • get widthRequest(): number

    Overrides for width request of the widget.

    If this is -1, the natural request will be used.

    Returns number

  • set widthRequest(val: number): void

    Parameters

    • Deprecatedval: number

    Returns void

Methods

  • Adds an attribute mapping to the list in cell_layout.

    The column is the column of the model to get a value from, and the attribute is the property on cell to be set from that value. So for example if column 2 of the model contains strings, you could have the “text” attribute of a Gtk.CellRendererText get its values from column 2. In this context "attribute" and "property" are used interchangeably.

    Parameters

    • Deprecatedcell: Gtk.CellRenderer
    • Deprecatedattribute: string

      a property on the renderer

    • Deprecatedcolumn: number

      the column position on the model to get the attribute from

    Returns void

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

    This kind of notification is useful for messages that either have only a visual representation or that are not exposed visually at all, e.g. a notification about a successful operation.

    Also, by using this API, you can ensure that the message does not interrupts the user's current screen reader output.

    Parameters

    Returns void

  • Creates a binding between source_property on source and target_property on target.

    Whenever the source_property is changed the target_property is updated using the same value. For instance:

      g_object_bind_property (action, "active", widget, "sensitive", 0);
    

    Will result in the "sensitive" property of the widget GObject.Object instance to be updated with the same value of the "active" property of the action GObject.Object instance.

    If flags contains GObject.BindingFlags.BIDIRECTIONAL then the binding will be mutual: if target_property on target changes then the source_property on source will be updated as well.

    The binding will automatically be removed when either the source or the target instances are finalized. To remove the binding without affecting the source and the target you can just call g_object_unref() on the returned GObject.Binding instance.

    Removing the binding by calling g_object_unref() on it must only be done if the binding, source and target are only used from a single thread and it is clear that both source and target outlive the binding. Especially it is not safe to rely on this if the binding, source or target can be finalized from different threads. Keep another reference to the binding and use g_binding_unbind() instead to be on the safe side.

    A GObject.Object can have multiple bindings.

    Parameters

    Returns GObject.Binding

    the GObject.Binding instance representing the binding between the two GObject.Object instances. The binding is released whenever the GObject.Binding reference count reaches zero.

  • Complete version of g_object_bind_property().

    Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.

    If flags contains GObject.BindingFlags.BIDIRECTIONAL then the binding will be mutual: if target_property on target changes then the source_property on source will be updated as well. The transform_from function is only used in case of bidirectional bindings, otherwise it will be ignored

    The binding will automatically be removed when either the source or the target instances are finalized. This will release the reference that is being held on the GObject.Binding instance; if you want to hold on to the GObject.Binding instance, you will need to hold a reference to it.

    To remove the binding, call g_binding_unbind().

    A GObject.Object can have multiple bindings.

    The same user_data parameter will be used for both transform_to and transform_from transformation functions; the notify function will be called once, when the binding is removed. If you need different data for each transformation function, please use g_object_bind_property_with_closures() instead.

    Parameters

    • Deprecatedsource_property: string

      the property on source to bind

    • Deprecatedtarget: GObject.Object

      the target GObject.Object

    • Deprecatedtarget_property: string

      the property on target to bind

    • Deprecatedflags: GObject.BindingFlags

      flags to pass to GObject.Binding

    • OptionalDeprecatedtransform_to: BindingTransformFunc

      the transformation function from the source to the target, or null to use the default

    • OptionalDeprecatedtransform_from: BindingTransformFunc

      the transformation function from the target to the source, or null to use the default

    • OptionalDeprecatednotify: DestroyNotify

      a function to call when disposing the binding, to free resources used by the transformation functions, or null if not required

    Returns GObject.Binding

    the GObject.Binding instance representing the binding between the two GObject.Object instances. The binding is released whenever the GObject.Binding reference count reaches zero.

  • Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.

    This function is the language bindings friendly version of g_object_bind_property_full(), using GClosures instead of function pointers.

    Parameters

    • Deprecated...args: never[]

      the property on source to bind

    Returns any

    the GObject.Binding instance representing the binding between the two GObject.Object instances. The binding is released whenever the GObject.Binding reference count reaches zero.

  • Disconnects a handler from an instance so it will not be called during any future or currently ongoing emissions of the signal it has been connected to.

    Parameters

    • Deprecatedid: number

      Handler ID of the handler to be disconnected

    Returns void

  • This function is intended for GObject.Object implementations to re-enforce a [floating][floating-ref] object reference. Doing this is seldom required: all GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().

    Returns void

  • Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one GObject.Object::notify signal is emitted for each property modified while the object is frozen.

    This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.

    Returns void

  • Gets the setting set by gtk_icon_view_set_activate_on_single_click().

    Returns boolean

    true if item-activated will be emitted on a single click

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

    An example for this would be treeview headers. GTK can use this information to display overlaid graphics, like the overshoot indication, at the right position.

    Returns [boolean, Gtk.Border]

    true if border has been set

  • Queries the coordinates and dimensions of this accessible

    This functionality can be overridden by Gtk.Accessible implementations, e.g. to get the bounds from an ignored child widget.

    Returns [boolean, number, number, number, number]

    true if the bounds are valid, and false otherwise

  • Returns the value of the ::column-spacing property.

    Returns number

    the space between columns

  • Returns the value of the ::columns property.

    Returns number

    the number of columns, or -1

  • Gets a named field from the objects table of associations (see g_object_set_data()).

    Parameters

    • Deprecatedkey: string

      name of the key for that association

    Returns any

    the data if found, or null if no such data exists.

  • Determines the destination item for a given position.

    Parameters

    • Deprecateddrag_x: number

      the position to determine the destination item for

    • Deprecateddrag_y: number

      the position to determine the destination item for

    Returns [boolean, Gtk.TreePath, Gtk.IconViewDropPosition]

    whether there is an item at the given position.

  • Returns the value of the ::item-orientation property which determines whether the labels are drawn beside the icons instead of below.

    Returns Gtk.Orientation

    the relative position of texts and icons

  • Returns the value of the ::item-padding property.

    Returns number

    the padding around items

  • Returns the value of the ::item-width property.

    Returns number

    the width of a single item, or -1

  • Returns the value of the ::margin property.

    Returns number

    the space at the borders

  • Returns the column with markup text for icon_view.

    Returns number

    the markup column, or -1 if it’s unset.

  • Gets the path for the icon at the given position.

    Parameters

    • Deprecatedx: number

      The x position to be identified

    • Deprecatedy: number

      The y position to be identified

    Returns Gtk.TreePath

    The Gtk.TreePath corresponding to the icon or null if no icon exists at that position.

  • Returns the column with pixbufs for icon_view.

    Returns number

    the pixbuf column, or -1 if it’s unset.

  • Gets a property of an object.

    The value can be:

    • an empty GObject.Value initialized by G_VALUE_INIT, which will be automatically initialized with the expected type of the property (since GLib 2.60)
    • a GObject.Value initialized with the expected type of the property
    • a GObject.Value initialized with a type to which the expected type of the property can be transformed

    In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling GObject.Value.unset.

    Note that GObject.Object.get_property is really intended for language bindings, GObject.Object.get is much more convenient for C programming.

    Parameters

    • Deprecatedproperty_name: string

      The name of the property to get

    • Deprecatedvalue: any

      Return location for the property value. Can be an empty GObject.Value initialized by G_VALUE_INIT (auto-initialized with expected type since GLib 2.60), a GObject.Value initialized with the expected property type, or a GObject.Value initialized with a transformable type

    Returns any

  • Retrieves whether the user can reorder the list via drag-and-drop. See gtk_icon_view_set_reorderable().

    Returns boolean

    true if the list can be reordered.

  • Returns the value of the ::row-spacing property.

    Returns number

    the space between rows

  • Creates a list of paths of all selected items. Additionally, if you are planning on modifying the model after calling this function, you may want to convert the returned list into a list of GtkTreeRowReferences. To do this, you can use gtk_tree_row_reference_new().

    To free the return value, use g_list_free_full:

    GtkWidget *icon_view = gtk_icon_view_new ();
    // Use icon_view

    GList *list = gtk_icon_view_get_selected_items (GTK_ICON_VIEW (icon_view));

    // use list

    g_list_free_full (list, (GDestroyNotify) gtk_tree_path_free);

    Returns Gtk.TreePath[]

    A GLib.List containing a Gtk.TreePath for each selected row.

  • Returns the value of the ::spacing property.

    Returns number

    the space between cells

  • Returns the column with text for icon_view.

    Returns number

    the text column, or -1 if it’s unset.

  • Returns the column of icon_view’s model which is being used for displaying tooltips on icon_view’s rows.

    Returns number

    the index of the tooltip column that is currently being used, or -1 if this is disabled.

  • This function is supposed to be used in a Gtk.Widget::query-tooltip signal handler for Gtk.IconView. The x, y and keyboard_tip values which are received in the signal handler, should be passed to this function without modification.

    The return value indicates whether there is an icon view item at the given coordinates (true) or not (false) for mouse tooltips. For keyboard tooltips the item returned will be the cursor item. When true, then any of model, path and iter which have been provided will be set to point to that row and the corresponding model.

    Parameters

    • Deprecatedx: number

      the x coordinate (relative to widget coordinates)

    • Deprecatedy: number

      the y coordinate (relative to widget coordinates)

    • Deprecatedkeyboard_tip: boolean

      whether this is a keyboard tooltip or not

    Returns [boolean, Gtk.TreeModel, Gtk.TreePath, Gtk.TreeIter]

    whether or not the given tooltip context points to an item

  • Sets start_path and end_path to be the first and last visible path. Note that there may be invisible paths in between.

    Both paths should be freed with gtk_tree_path_free() after use.

    Returns [boolean, Gtk.TreePath, Gtk.TreePath]

    true, if valid paths were placed in start_path and end_path

  • Gets n_properties properties for an object. Obtained properties will be set to values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.

    Parameters

    • Deprecatednames: string[]

      the names of each property to get

    • Deprecatedvalues: any[]

      the values of each property to get

    Returns void

  • Emits a "notify" signal for the property property_name on object.

    When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.

    Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.

    Parameters

    • Deprecatedproperty_name: string

      the name of a property installed on the class of object.

    Returns void

  • Emits a "notify" signal for the property specified by pspec on object.

    This function omits the property name lookup, hence it is faster than g_object_notify().

    One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with g_object_class_install_property() inside a static array, e.g.:

      typedef enum
    {
    PROP_FOO = 1,
    PROP_LAST
    } MyObjectProperty;

    static GParamSpec *properties[PROP_LAST];

    static void
    my_object_class_init (MyObjectClass *klass)
    {
    properties[PROP_FOO] = g_param_spec_int ("foo", NULL, NULL,
    0, 100,
    50,
    G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    g_object_class_install_property (gobject_class,
    PROP_FOO,
    properties[PROP_FOO]);
    }

    and then notify a change on the "foo" property with:

      g_object_notify_by_pspec (self, properties[PROP_FOO]);
    

    Parameters

    Returns void

  • Adds the cell to the end of cell_layout. If expand is false, then the cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which expand is true.

    Note that reusing the same cell renderer is not supported.

    Parameters

    Returns void

  • Packs the cell into the beginning of cell_layout. If expand is false, then the cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which expand is true.

    Note that reusing the same cell renderer is not supported.

    Parameters

    Returns void

  • Returns true if the icon pointed to by path is currently selected. If path does not point to a valid location, false is returned.

    Parameters

    Returns boolean

    true if path is selected.

  • Increases the reference count of object.

    Since GLib 2.56, if GLIB_VERSION_MAX_ALLOWED is 2.56 or greater, the type of object will be propagated to the return type (using the GCC typeof() extension), so any casting the caller needs to do on the return type must be explicit.

    Returns GObject.Object

    the same object

  • Increase the reference count of object, and possibly remove the [floating][floating-ref] reference, if object has a floating reference.

    In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one.

    Since GLib 2.56, the type of object will be propagated to the return type under the same conditions as for g_object_ref().

    Returns GObject.Object

    object

  • Moves the alignments of icon_view to the position specified by path. row_align determines where the row is placed, and col_align determines where column is placed. Both are expected to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means right/bottom alignment, 0.5 means center.

    If use_align is false, then the alignment arguments are ignored, and the tree does the minimum amount of work to scroll the item onto the screen. This means that the item will be scrolled to the edge closest to its current position. If the item is currently visible on the screen, nothing is done.

    This function only works if the model is set, and path is a valid row on the model. If the model changes before the icon_view is realized, the centered path will be modified to reflect this change.

    Parameters

    • Deprecatedpath: Gtk.TreePath

      The path of the item to move to.

    • Deprecateduse_align: boolean

      whether to use alignment arguments, or false.

    • Deprecatedrow_align: number

      The vertical alignment of the item specified by path.

    • Deprecatedcol_align: number

      The horizontal alignment of the item specified by path.

    Returns void

  • Sets multiple properties of an object at once. The properties argument should be a dictionary mapping property names to values.

    Parameters

    • Deprecatedproperties: { [key: string]: any }

      Object containing the properties to set

    Returns void

  • Sets the parent and sibling of an accessible object.

    This function is meant to be used by accessible implementations that are not part of the widget hierarchy, and but act as a logical bridge between widgets. For instance, if a widget creates an object that holds metadata for each child, and you want that object to implement the Gtk.Accessible interface, you will use this function to ensure that the parent of each child widget is the metadata object, and the parent of each metadata object is the container widget.

    Parameters

    • OptionalDeprecatedparent: Gtk.Accessible

      the parent accessible object

    • OptionalDeprecatednext_sibling: Gtk.Accessible

      the sibling accessible object

    Returns void

  • Causes the Gtk.IconView::item-activated signal to be emitted on a single click instead of a double click.

    Parameters

    • Deprecatedsingle: boolean

      true to emit item-activated on a single click

    Returns void

  • Sets the ::column-spacing property which specifies the space which is inserted between the columns of the icon view.

    Parameters

    • Deprecatedcolumn_spacing: number

      the column spacing

    Returns void

  • Sets the ::columns property which determines in how many columns the icons are arranged. If columns is -1, the number of columns will be chosen automatically to fill the available area.

    Parameters

    • Deprecatedcolumns: number

      the number of columns

    Returns void

  • Sets the current keyboard focus to be at path, and selects it. This is useful when you want to focus the user’s attention on a particular item. If cell is not null, then focus is given to the cell specified by it. Additionally, if start_editing is true, then editing should be started in the specified cell.

    This function is often followed by gtk_widget_grab_focus (icon_view) in order to give keyboard focus to the widget. Please note that editing can only happen when the widget is realized.

    Parameters

    • Deprecatedpath: Gtk.TreePath
    • Deprecatedcell: Gtk.CellRenderer

      One of the cell renderers of icon_view

    • Deprecatedstart_editing: boolean

      true if the specified cell should start being edited.

    Returns void

  • Parameters

    • Deprecated...args: never[]

    Returns any

  • Each object carries around a table of associations from strings to pointers. This function lets you set an association.

    If the object already had an association with that name, the old association will be destroyed.

    Internally, the key is converted to a GLib.Quark using g_quark_from_string(). This means a copy of key is kept permanently (even after object has been finalized) — so it is recommended to only use a small, bounded set of values for key in your program, to avoid the GLib.Quark storage growing unbounded.

    Parameters

    • Deprecatedkey: string

      name of the key

    • OptionalDeprecateddata: any

      data to associate with that key

    Returns void

  • Sets the ::item-orientation property which determines whether the labels are drawn beside the icons instead of below.

    Parameters

    • Deprecatedorientation: Gtk.Orientation

      the relative position of texts and icons

    Returns void

  • Sets the Gtk.IconView:item-padding property which specifies the padding around each of the icon view’s items.

    Parameters

    • Deprecateditem_padding: number

      the item padding

    Returns void

  • Sets the ::item-width property which specifies the width to use for each item. If it is set to -1, the icon view will automatically determine a suitable item size.

    Parameters

    • Deprecateditem_width: number

      the width for each item

    Returns void

  • Sets the ::margin property which specifies the space which is inserted at the top, bottom, left and right of the icon view.

    Parameters

    • Deprecatedmargin: number

      the margin

    Returns void

  • Sets the column with markup information for icon_view to be column. The markup column must be of type G_TYPE_STRING. If the markup column is set to something, it overrides the text column set by gtk_icon_view_set_text_column().

    Parameters

    • Deprecatedcolumn: number

      A column in the currently used model, or -1 to display no text

    Returns void

  • Sets the model for a Gtk.IconView. If the icon_view already has a model set, it will remove it before setting the new model. If model is null, then it will unset the old model.

    Parameters

    Returns void

  • Sets the column with pixbufs for icon_view to be column. The pixbuf column must be of type GDK_TYPE_PIXBUF

    Parameters

    • Deprecatedcolumn: number

      A column in the currently used model, or -1 to disable

    Returns void

  • This function is a convenience function to allow you to reorder models that support the Gtk.TreeDragSourceIface and the Gtk.TreeDragDestIface. Both Gtk.TreeStore and Gtk.ListStore support these. If reorderable is true, then the user can reorder the model by dragging and dropping rows. The developer can listen to these changes by connecting to the model's row_inserted and row_deleted signals. The reordering is implemented by setting up the icon view as a drag source and destination. Therefore, drag and drop can not be used in a reorderable view for any other purpose.

    This function does not give you any degree of control over the order -- any reordering is allowed. If more control is needed, you should probably handle drag and drop manually.

    Parameters

    • Deprecatedreorderable: boolean

      true, if the list of items can be reordered.

    Returns void

  • Sets the ::row-spacing property which specifies the space which is inserted between the rows of the icon view.

    Parameters

    • Deprecatedrow_spacing: number

      the row spacing

    Returns void

  • Sets the ::spacing property which specifies the space which is inserted between the cells (i.e. the icon and the text) of an item.

    Parameters

    • Deprecatedspacing: number

      the spacing

    Returns void

  • Sets the column with text for icon_view to be column. The text column must be of type G_TYPE_STRING.

    Parameters

    • Deprecatedcolumn: number

      A column in the currently used model, or -1 to display no text

    Returns void

  • If you only plan to have simple (text-only) tooltips on full items, you can use this function to have Gtk.IconView handle these automatically for you. column should be set to the column in icon_view’s model containing the tooltip texts, or -1 to disable this feature.

    When enabled, Gtk.Widget.has_tooltip will be set to true and icon_view will connect a Gtk.Widget::query-tooltip signal handler.

    Note that the signal handler sets the text with gtk_tooltip_set_markup(), so &, <, etc have to be escaped in the text.

    Parameters

    • Deprecatedcolumn: number

      an integer, which is a valid column number for icon_view’s model

    Returns void

  • Remove a specified datum from the object's data associations, without invoking the association's destroy handler.

    Parameters

    • Deprecatedkey: string

      name of the key

    Returns any

    the data if found, or null if no such data exists.

  • This function gets back user data pointers stored via g_object_set_qdata() and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier, for example:

    void
    object_add_to_user_list (GObject *object,
    const gchar *new_string)
    {
    // the quark, naming the object data
    GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
    // retrieve the old string list
    GList *list = g_object_steal_qdata (object, quark_string_list);

    // prepend new string
    list = g_list_prepend (list, g_strdup (new_string));
    // this changed 'list', so we need to set it again
    g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
    }
    static void
    free_string_list (gpointer data)
    {
    GList *node, *list = data;

    for (node = list; node; node = node->next)
    g_free (node->data);
    g_list_free (list);
    }

    Using g_object_get_qdata() in the above example, instead of g_object_steal_qdata() would have left the destroy function set, and thus the partial string list would have been freed upon g_object_set_qdata_full().

    Parameters

    • Deprecatedquark: number

      A GLib.Quark, naming the user data pointer

    Returns any

    The user data pointer set, or null

  • Reverts the effect of a previous call to g_object_freeze_notify(). The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted.

    Duplicate notifications for each property are squashed so that at most one GObject.Object::notify signal is emitted for each property, in the reverse order in which they have been queued.

    It is an error to call this function when the freeze count is zero.

    Returns void

  • Decreases the reference count of object. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).

    If the pointer to the GObject.Object may be reused in future (for example, if it is an instance variable of another object), it is recommended to clear the pointer to null rather than retain a dangling pointer to a potentially invalid GObject.Object instance. Use g_clear_object() for this.

    Returns void

  • Undoes the effect of gtk_icon_view_enable_model_drag_dest(). Calling this method sets Gtk.IconView:reorderable to false.

    Returns void

  • Undoes the effect of gtk_icon_view_enable_model_drag_source(). Calling this method sets Gtk.IconView:reorderable to false.

    Returns void

  • Adds an attribute mapping to the list in cell_layout.

    The column is the column of the model to get a value from, and the attribute is the property on cell to be set from that value. So for example if column 2 of the model contains strings, you could have the “text” attribute of a Gtk.CellRendererText get its values from column 2. In this context "attribute" and "property" are used interchangeably.

    Parameters

    • Deprecatedcell: Gtk.CellRenderer
    • Deprecatedattribute: string

      a property on the renderer

    • Deprecatedcolumn: number

      the column position on the model to get the attribute from

    Returns void

  • the constructed function is called by g_object_new() as the final step of the object creation process. At the point of the call, all construction properties have been set on the object. The purpose of this call is to allow for object initialisation steps that can only be performed after construction properties have been set. constructed implementors should chain up to the constructed call of their parent class to allow it to complete its initialisation.

    Returns void

  • the dispose function is supposed to drop all references to other objects, but keep the instance otherwise intact, so that client method invocations still work. It may be run multiple times (due to reference loops). Before returning, dispose should chain up to the dispose method of the parent class.

    Returns void

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

    An example for this would be treeview headers. GTK can use this information to display overlaid graphics, like the overshoot indication, at the right position.

    Returns [boolean, Gtk.Border]

  • Emits a "notify" signal for the property property_name on object.

    When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.

    Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.

    Parameters

    Returns void

  • Adds the cell to the end of cell_layout. If expand is false, then the cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which expand is true.

    Note that reusing the same cell renderer is not supported.

    Parameters

    Returns void

  • Packs the cell into the beginning of cell_layout. If expand is false, then the cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which expand is true.

    Note that reusing the same cell renderer is not supported.

    Parameters

    Returns void

  • the generic setter for all properties of this type. Should be overridden for every type with properties. If implementations of set_property don't emit property change notification explicitly, this will be done implicitly by the type system. However, if the notify signal is emitted explicitly, the type system will not emit it a second time.

    Parameters

    • Deprecatedproperty_id: number
    • Deprecatedvalue: any
    • Deprecatedpspec: GObject.ParamSpec

    Returns void

  • This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling g_closure_invalidate() on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, g_object_ref() and g_object_unref() are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.

    Parameters

    Returns void

Methods - Inherited from Gtk.Widget

  • Activates an action for the widget.

    The action is looked up in the action groups associated with widget and its ancestors.

    If the action is in an action group added with Gtk.Widget.insert_action_group, the name is expected to be prefixed with the prefix that was used when the group was inserted.

    The arguments must match the actions expected parameter type, as returned by Gio.Action.get_parameter_type.

    Parameters

    • Deprecatedname: string

      the name of the action to activate

    • OptionalDeprecatedargs: GLib.Variant<any>

      parameters to use

    Returns boolean

    true if the action was activated

  • Adds a style class to the widget.

    After calling this function, the widget’s style will match for css_class, according to CSS matching rules.

    Use Gtk.Widget.remove_css_class to remove the style again.

    Parameters

    • Deprecatedcss_class: string

      style class to add to widget, without the leading period

    Returns void

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

    Until the tick callback is removed, it will be called frequently (usually at the frame rate of the output device or as quickly as the application can be repainted, whichever is slower). For this reason, is most suitable for handling graphics that change every frame or every few frames.

    The tick callback does not automatically imply a relayout or repaint. If you want a repaint or relayout, and aren’t changing widget properties that would trigger that (for example, changing the text of a label), then you will have to call Gtk.Widget.queue_resize or Gtk.Widget.queue_draw yourself.

    Gdk.FrameClock.get_frame_time should generally be used for timing continuous animations and Gdk.FrameTimings.get_predicted_presentation_time should be used if you are trying to display isolated frames at particular times.

    This is a more convenient alternative to connecting directly to the Gdk.FrameClock::update signal of the frame clock, since you don't have to worry about when a frame clock is assigned to a widget.

    To remove a tick callback, pass the ID that is returned by this function to Gtk.Widget.remove_tick_callback.

    Parameters

    • Deprecatedcallback: Gtk.TickCallback

      function to call for updating animations

    Returns number

    an ID for this callback

  • Assigns size, position, (optionally) a baseline and transform to a child widget.

    In this function, the allocation and baseline may be adjusted. The given allocation will be forced to be bigger than the widget's minimum size, as well as at least 0×0 in size.

    This function is only used by widget implementations.

    For a version that does not take a transform, see Gtk.Widget.size_allocate.

    Parameters

    • Deprecatedwidth: number

      new width

    • Deprecatedheight: number

      new height

    • Deprecatedbaseline: number

      new baseline, or -1

    • OptionalDeprecatedtransform: Transform

      transformation to be applied

    Returns void

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

    The direction argument indicates what kind of motion is taking place (up, down, left, right, tab forward, tab backward).

    This function calls the Gtk.Widget.focus virtual function; widgets can override the virtual function in order to implement appropriate focus behavior.

    The default focus() virtual function for a widget should return true if moving in direction left the focus on a focusable location inside that widget, and false if moving in direction moved the focus outside the widget. When returning true, widgets normally call Gtk.Widget.grab_focus to place the focus accordingly; when returning false, they don’t modify the current focus location.

    This function is used by custom widget implementations; if you're writing an app, you’d use Gtk.Widget.grab_focus to move the focus to a particular widget.

    Parameters

    Returns boolean

    true if focus ended up inside widget

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

    The bounds of widget are (the bounding box of) the region that it is expected to draw in. See the coordinate system overview to learn more.

    If the operation is successful, true is returned. If widget has no bounds or the bounds cannot be expressed in target's coordinate space (for example if both widgets are in different windows), false is returned and bounds is set to the zero rectangle.

    It is valid for widget and target to be the same widget.

    Parameters

    • Deprecatedtarget: Gtk.Widget

      the target widget

    Returns [boolean, Graphene.Rect]

    true if the bounds could be computed

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

    Widgets with children should check this, rather than looking at Gtk.Widget.get_hexpand or Gtk.Widget.get_vexpand.

    This function already checks whether the widget is visible, so visibility does not need to be checked separately. Non-visible widgets are not expanded.

    The computed expand value uses either the expand setting explicitly set on the widget itself, or, if none has been explicitly set, the widget may expand if some of its children do.

    Parameters

    Returns boolean

    whether widget tree rooted here should be expanded

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

    In order to perform this operation, both widgets must share a a common ancestor. If that is not the case, out_point is set to (0, 0) and false is returned.

    Parameters

    • Deprecatedtarget: Gtk.Widget

      the widget to transform into

    • Deprecatedpoint: Graphene.Point

      a point in widget's coordinate system

    Returns [boolean, Graphene.Point]

    true if src_widget and dest_widget have a common ancestor, false otherwise

  • Computes a matrix suitable to describe a transformation from widget's coordinate system into target's coordinate system.

    The transform can not be computed in certain cases, for example when widget and target do not share a common ancestor. In that case out_transform gets set to the identity matrix.

    To learn more about widget coordinate systems, see the coordinate system overview.

    Parameters

    • Deprecatedtarget: Gtk.Widget

      the target widget that the matrix will transform to

    Returns [boolean, Graphene.Matrix]

    true if the transform could be computed

  • Tests if a given point is contained in the widget.

    The coordinates for (x, y) must be in widget coordinates, so (0, 0) is assumed to be the top left of widget's content area.

    Parameters

    • Deprecatedx: number

      X coordinate to test, relative to widget's origin

    • Deprecatedy: number

      Y coordinate to test, relative to widget's origin

    Returns boolean

    true if widget contains the point (x, y)

  • Clears the template children for the widget.

    This function is the opposite of Gtk.Widget.init_template, and it is used to clear all the template children from a widget instance. If you bound a template child to a field in the instance structure, or in the instance private data structure, the field will be set to NULL after this function returns.

    You should call this function inside the GObject.Object.dispose implementation of any widget that called Gtk.Widget.init_template. Typically, you will want to call this function last, right before chaining up to the parent type's dispose implementation, e.g.

    static void
    some_widget_dispose (GObject *gobject)
    {
    SomeWidget *self = SOME_WIDGET (gobject);

    // Clear the template data for SomeWidget
    gtk_widget_dispose_template (GTK_WIDGET (self), SOME_TYPE_WIDGET);

    G_OBJECT_CLASS (some_widget_parent_class)->dispose (gobject);
    }

    Parameters

    • Deprecatedwidget_type: GType

      the type of the widget to finalize the template for

    Returns void

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

    Parameters

    • Deprecatedstart_x: number

      X coordinate of start of drag

    • Deprecatedstart_y: number

      Y coordinate of start of drag

    • Deprecatedcurrent_x: number

      current X coordinate

    • Deprecatedcurrent_y: number

      current Y coordinate

    Returns boolean

    true if the drag threshold has been passed

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

    This function is intended to be used when implementing handlers for the Gtk.Widget.snapshot function, and when allocating child widgets in Gtk.Widget.size_allocate.

    Returns number

    the baseline of the widget, or -1 if none

  • Retrieves the widget’s allocation.

    Note, when implementing a layout widget: a widget’s allocation will be its “adjusted” allocation, that is, the widget’s parent typically calls Gtk.Widget.size_allocate with an allocation, and that allocation is then adjusted (to handle margin and alignment for example) before assignment to the widget. Gtk.Widget.get_allocation returns the adjusted allocation that was actually assigned to the widget. The adjusted allocation is guaranteed to be completely contained within the Gtk.Widget.size_allocate allocation, however.

    So a layout widget is guaranteed that its children stay inside the assigned bounds, but not that they have exactly the bounds the widget assigned.

    Returns Gdk.Rectangle

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

    For example, gtk_widget_get_ancestor (widget, GTK_TYPE_BOX) gets the first Gtk.Box that’s an ancestor of widget. No reference will be added to the returned widget; it should not be unreferenced.

    Note that unlike Gtk.Widget.is_ancestor, this function considers widget to be an ancestor of itself.

    Parameters

    • Deprecatedwidget_type: GType

      ancestor type

    Returns Gtk.Widget

    the ancestor widget

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

    This function is intended to be used when implementing handlers for the Gtk.Widget.snapshot function, and when allocating child widgets in Gtk.Widget.size_allocate.

    Returns number

    the baseline of the widget, or -1 if none

  • Gets the value set with Gtk.Widget.set_child_visible.

    If you feel a need to use this function, your code probably needs reorganization.

    This function is only useful for widget implementations and should never be called by an application.

    Returns boolean

    true if the widget is mapped with the parent

  • Gets the clipboard object for the widget.

    This is a utility function to get the clipboard object for the display that widget is using.

    Note that this function always works, even when widget is not realized yet.

    Returns Gdk.Clipboard

    the appropriate clipboard object

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

    This function should only be used in snapshot implementations that need to do custom drawing with the foreground color.

    Returns Gdk.RGBA

  • Returns the list of style classes applied to the widget.

    Returns string[]

    a NULL-terminated list of css classes currently applied to widget

  • Get the display for the window that the widget belongs to.

    This function can only be called after the widget has been added to a widget hierarchy with a Gtk.Root at the top.

    In general, you should only create display-specific resources when a widget has been realized, and you should free those resources when the widget is unrealized.

    Returns Gdk.Display

    the display for this widget

  • Obtains the frame clock for a widget.

    The frame clock is a global “ticker” that can be used to drive animations and repaints. The most common reason to get the frame clock is to call Gdk.FrameClock.get_frame_time, in order to get a time to use for animating. For example you might record the start of the animation with an initial value from Gdk.FrameClock.get_frame_time, and then update the animation by calling Gdk.FrameClock.get_frame_time again during each repaint.

    Gdk.FrameClock.request_phase will result in a new frame on the clock, but won’t necessarily repaint any widgets. To repaint a widget, you have to use Gtk.Widget.queue_draw which invalidates the widget (thus scheduling it to receive a draw on the next frame). Gtk.Widget.queue_draw will also end up requesting a frame on the appropriate frame clock.

    A widget’s frame clock will not change while the widget is mapped. Reparenting a widget (which implies a temporary unmap) can change the widget’s frame clock.

    Unrealized widgets do not have a frame clock.

    Returns Gdk.FrameClock

    the frame clock

  • Returns the content height of the widget.

    This function returns the height passed to its size-allocate implementation, which is the height you should be using in Gtk.Widget.snapshot.

    For pointer events, see Gtk.Widget.contains.

    To learn more about widget sizes, see the coordinate system overview.

    Returns number

    The height of widget

  • Gets whether the widget would like any available extra horizontal space.

    When a user resizes a window, widgets with expand set to true generally receive the extra space. For example, a list or scrollable area or document in your window would often be set to expand.

    Widgets with children should use Gtk.Widget.compute_expand rather than this function, to see whether any of its children, has the expand flag set. If any child of a widget wants to expand, the parent may ask to expand also.

    This function only looks at the widget’s own hexpand flag, rather than computing whether the entire widget tree rooted at this widget wants to expand.

    Returns boolean

    whether hexpand flag is set

  • Gets whether the hexpand flag has been explicitly set.

    If Gtk.Widget.hexpand property is set, then it overrides any computed expand value based on child widgets. If hexpand is not set, then the expand value depends on whether any children of the widget would like to expand.

    There are few reasons to use this function, but it’s here for completeness and consistency.

    Returns boolean

    whether hexpand has been explicitly set

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

    This is used to retrieve a suitable size by container widgets which do not impose any restrictions on the child placement. It can be used to deduce toplevel window and menu sizes as well as child widgets in free-form containers such as Gtk.Fixed.

    Handle with care. Note that the natural height of a height-for-width widget will generally be a smaller size than the minimum height, since the required height for the natural width is generally smaller than the required height for the minimum width.

    Use Gtk.Widget.measure if you want to support baseline alignment.

    Returns [Gtk.Requisition, Gtk.Requisition]

  • Gets the primary clipboard of the widget.

    This is a utility function to get the primary clipboard object for the display that widget is using.

    Note that this function always works, even when widget is not realized yet.

    Returns Gdk.Clipboard

    the appropriate clipboard object

  • Retrieves the internal scale factor that maps from window coordinates to the actual device pixels.

    On traditional systems this is 1, on high density outputs, it can be a higher value (typically 2).

    See Gdk.Surface.get_scale_factor.

    Note that modern systems may support fractional scaling, where the scale factor is not an integer. On such systems, this function will return the next higher integer value, but you probably want to use Gdk.Surface.get_scale to get the fractional scale value.

    Returns number

    the scale factor for widget

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

    Note that this function can only be called when the Gtk.Widget is attached to a toplevel, since the settings object is specific to a particular display. If you want to monitor the widget for changes in its settings, connect to the notify::display signal.

    Returns Gtk.Settings

    the relevant settings object

  • Gets the size request that was explicitly set for the widget.

    A value of -1 stored in width or height indicates that that dimension has not been set explicitly and the natural requisition of the widget will be used instead.

    See Gtk.Widget.set_size_request.

    To get the size a widget will actually request, call Gtk.Widget.measure instead of this function.

    Returns [number, number]

  • Fetches an object build from the template XML for widget_type in the widget.

    This will only report children which were previously declared with Gtk.WidgetClass.bind_template_child_full or one of its variants.

    This function is only meant to be called for code which is private to the widget_type which declared the child and is meant for language bindings which cannot easily make use of the GObject structure offsets.

    Type Parameters

    Parameters

    • Deprecatedwidget_type: GType

      The GObject.GType to get a template child for

    • Deprecatedname: string

      ID of the child defined in the template XML

    Returns T

    the object built in the template XML with the id name

  • Returns the content width of the widget.

    This function returns the width passed to its size-allocate implementation, which is the width you should be using in Gtk.Widget.snapshot.

    For pointer events, see Gtk.Widget.contains.

    To learn more about widget sizes, see the coordinate system overview.

    Returns number

    The width of widget

  • Causes widget to have the keyboard focus for the window that it belongs to.

    If widget is not focusable, or its Gtk.Widget.grab_focus implementation cannot transfer the focus to a descendant of widget that is focusable, it will not take focus and false will be returned.

    Calling Gtk.Widget.grab_focus on an already focused widget is allowed, should not have an effect, and return true.

    Returns boolean

    true if focus is now inside widget

  • Returns whether a style class is currently applied to the widget.

    Parameters

    • Deprecatedcss_class: string

      style class, without the leading period

    Returns boolean

    true if css_class is currently applied to widget

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

    This is a convenience function that takes into account whether focus indication should currently be shown in the toplevel window of widget. See Gtk.Window.get_focus_visible for more information about focus indication.

    To find out if the widget has the global input focus, use Gtk.Widget.has_focus.

    Returns boolean

    true if the widget should display a “focus rectangle”

  • Reverses the effects of [method.Gtk.Widget.show].

    This is causing the widget to be hidden (invisible to the user).

    Returns void

  • Returns whether the widget is currently being destroyed.

    This information can sometimes be used to avoid doing unnecessary work.

    Returns boolean

    true if widget is being destroyed

  • Creates and initializes child widgets defined in templates.

    This function must be called in the instance initializer for any class which assigned itself a template using Gtk.WidgetClass.set_template.

    It is important to call this function in the instance initializer of a widget subclass and not in GObject.constructed() or GObject.constructor() for two reasons:

    • derived widgets will assume that the composite widgets defined by its parent classes have been created in their relative instance initializers
    • when calling g_object_new() on a widget with composite templates, it’s important to build the composite widgets before the construct properties are set. Properties passed to g_object_new() should take precedence over properties set in the private template XML

    A good rule of thumb is to call this function as the first thing in an instance initialization function.

    Returns void

  • Inserts an action group into the widget's actions.

    Children of widget that implement Gtk.Actionable can then be associated with actions in group by setting their “action-name” to prefix.action-name.

    Note that inheritance is defined for individual actions. I.e. even if you insert a group with prefix prefix, actions with the same prefix will still be inherited from the parent, unless the group contains an action with the same name.

    If group is NULL, a previously inserted group for name is removed from widget.

    Parameters

    • Deprecatedname: string

      the prefix for actions in group

    • OptionalDeprecatedgroup: Gio.ActionGroup

      an action group

    Returns void

  • Sets the parent widget of the widget.

    In contrast to Gtk.Widget.set_parent, this function inserts widget at a specific position into the list of children of the parent widget.

    It will be placed after previous_sibling, or at the beginning if previous_sibling is NULL.

    After calling this function, gtk_widget_get_prev_sibling (widget) will return previous_sibling.

    If parent is already set as the parent widget of widget, this function can also be used to reorder widget in the child widget list of parent.

    This function is primarily meant for widget implementations; if you are just using a widget, you must use its own API for adding children.

    Parameters

    • Deprecatedparent: Gtk.Widget

      the parent widget to insert widget into

    • OptionalDeprecatedprevious_sibling: Gtk.Widget

      the new previous sibling of widget

    Returns void

  • Sets the parent widget of the widget.

    In contrast to Gtk.Widget.set_parent, this function inserts widget at a specific position into the list of children of the parent widget.

    It will be placed before next_sibling, or at the end if next_sibling is NULL.

    After calling this function, gtk_widget_get_next_sibling (widget) will return next_sibling.

    If parent is already set as the parent widget of widget, this function can also be used to reorder widget in the child widget list of parent.

    This function is primarily meant for widget implementations; if you are just using a widget, you must use its own API for adding children.

    Parameters

    • Deprecatedparent: Gtk.Widget

      the parent widget to insert widget into

    • OptionalDeprecatednext_sibling: Gtk.Widget

      the new next sibling of widget

    Returns void

  • Determines whether the widget can be drawn to.

    A widget can be drawn if it is mapped and visible.

    Returns boolean

    true if widget is drawable

  • Returns the widget’s effective sensitivity.

    This means it is sensitive itself and also its parent widget is sensitive.

    Returns boolean

    true if the widget is effectively sensitive

  • Emits the Gtk.Widget::keynav-failed signal on the widget.

    This function should be called whenever keyboard navigation within a single widget hits a boundary.

    The return value of this function should be interpreted in a way similar to the return value of Gtk.Widget.child_focus. When true is returned, stay in the widget, the failed keyboard navigation is ok and/or there is nowhere we can/should move the focus to. When false is returned, the caller should continue with keyboard navigation outside the widget, e.g. by calling Gtk.Widget.child_focus on the widget’s toplevel.

    The default Gtk.Widget::keynav-failed handler returns false for Gtk.DirectionType.TAB-FORWARD and Gtk.DirectionType.TAB-BACKWARD. For the other values of Gtk.DirectionType it returns true.

    Whenever the default handler returns true, it also calls Gtk.Widget.error_bell to notify the user of the failed keyboard navigation.

    A use case for providing an own implementation of ::keynav-failed (either by connecting to it or by overriding it) would be a row of Gtk.Entry widgets where the user should be able to navigate the entire row with the cursor keys, as e.g. known from user interfaces that require entering license keys.

    Parameters

    Returns boolean

    true if stopping keyboard navigation is fine, false if the emitting widget should try to handle the keyboard navigation attempt in its parent widget

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

    Typically, these widgets will be labels. See, for example, Gtk.Label.set_mnemonic_widget.

    The widgets in the list are not individually referenced. If you want to iterate through the list and perform actions involving callbacks that might destroy the widgets, you must call g_list_foreach (result, (GFunc)g_object_ref, NULL) first, and then unref all the widgets afterwards.

    Returns Gtk.Widget[]

    the list of mnemonic labels

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

    This function is only for use in widget implementations.

    Returns void

  • Emits the Gtk.Widget::mnemonic-activate signal.

    Parameters

    • Deprecatedgroup_cycling: boolean

      true if there are other widgets with the same mnemonic

    Returns boolean

    true if the signal has been handled

  • Returns a list model to track the children of the widget.

    Calling this function will enable extra internal bookkeeping to track children and emit signals on the returned listmodel. It may slow down operations a lot.

    Applications should try hard to avoid calling this function because of the slowdowns.

    Returns Gio.ListModel

    a list model tracking widget's children

  • Returns a list model to track the event controllers of the widget.

    Calling this function will enable extra internal bookkeeping to track controllers and emit signals on the returned listmodel. It may slow down operations a lot.

    Applications should try hard to avoid calling this function because of the slowdowns.

    Returns Gio.ListModel

    a list model tracking widget's controllers

  • Finds the descendant of the widget closest to a point.

    The point (x, y) must be given in widget coordinates, so (0, 0) is assumed to be the top left of widget's content area.

    Usually widgets will return NULL if the given coordinate is not contained in widget checked via Gtk.Widget.contains. Otherwise they will recursively try to find a child that does not return NULL. Widgets are however free to customize their picking algorithm.

    This function is used on the toplevel to determine the widget below the mouse cursor for purposes of hover highlighting and delivering events.

    Parameters

    • Deprecatedx: number

      x coordinate to test, relative to widget's origin

    • Deprecatedy: number

      y coordinate to test, relative to widget's origin

    • Deprecatedflags: Gtk.PickFlags

      flags to influence what is picked

    Returns Gtk.Widget

    the widget's descendant at (x, y)

  • Schedules this widget to be redrawn.

    The redraw will happen in the paint phase of the current or the next frame.

    This means widget's Gtk.Widget.snapshot implementation will be called.

    Returns void

  • Flags a widget to have its size renegotiated.

    This should be called when a widget for some reason has a new size request. For example, when you change the text in a Gtk.Label, the label queues a resize to ensure there’s enough space for the new text.

    Note that you cannot call gtk_widget_queue_resize() on a widget from inside its implementation of the Gtk.Widget.size_allocate virtual method. Calls to gtk_widget_queue_resize() from inside Gtk.Widget.size_allocate will be silently ignored.

    This function is only for use in widget implementations.

    Returns void

  • Creates the GDK resources associated with a widget.

    Normally realization happens implicitly; if you show a widget and all its parent containers, then the widget will be realized and mapped automatically.

    Realizing a widget requires all the widget’s parent widgets to be realized; calling this function realizes the widget’s parents in addition to widget itself. If a widget is not yet inside a toplevel window when you realize it, bad things will happen.

    This function is primarily used in widget implementations, and isn’t very useful otherwise. Many times when you think you might need it, a better approach is to connect to a signal that will be called after the widget is realized automatically, such as Gtk.Widget::realize.

    Returns void

  • Removes an event controller from the widget.

    The removed event controller will not receive any more events, and should not be used again.

    Widgets will remove all event controllers automatically when they are destroyed, there is normally no need to call this function.

    Parameters

    Returns void

  • Removes a style from the widget.

    After this, the style of widget will stop matching for css_class.

    Parameters

    • Deprecatedcss_class: string

      style class to remove from widget, without the leading period

    Returns void

  • Sets whether the input focus can enter the widget or any of its children.

    Applications should set can_focus to false to mark a widget as for pointer/touch use only.

    Note that having can_focus be true is only one of the necessary conditions for being focusable. A widget must also be sensitive and focusable and not have an ancestor that is marked as not can-focus in order to receive input focus.

    See Gtk.Widget.grab_focus for actually setting the input focus on a widget.

    Parameters

    • Deprecatedcan_focus: boolean

      whether the input focus can enter the widget or any of its children

    Returns void

  • Sets whether the widget can be the target of pointer events.

    Parameters

    • Deprecatedcan_target: boolean

      whether this widget should be able to receive pointer events

    Returns void

  • Sets whether the widget should be mapped along with its parent.

    The child visibility can be set for widget before it is added to a container with Gtk.Widget.set_parent, to avoid mapping children unnecessary before immediately unmapping them. However it will be reset to its default state of true when the widget is removed from a container.

    Note that changing the child visibility of a widget does not queue a resize on the widget. Most of the time, the size of a widget is computed from all visible children, whether or not they are mapped. If this is not the case, the container can queue a resize itself.

    This function is only useful for widget implementations and should never be called by an application.

    Parameters

    • Deprecatedchild_visible: boolean

      whether widget should be mapped along with its parent

    Returns void

  • Replaces the current style classes of the widget with classes.

    Parameters

    • Deprecatedclasses: string[]

      NULL-terminated list of style classes

    Returns void

  • Sets the reading direction on the widget.

    This direction controls the primary direction for widgets containing text, and also the direction in which the children of a container are packed. The ability to set the direction is present in order so that correct localization into languages with right-to-left reading directions can be done.

    Generally, applications will let the default reading direction prevail, except for widgets where the children are arranged in an order that is explicitly visual rather than logical (such as buttons for text justification).

    If the direction is set to Gtk.TextDirection.NONE, then the value set by Gtk.Widget.set_default_direction will be used.

    Parameters

    Returns void

  • Sets whether the widget should grab focus when it is clicked with the mouse.

    Making mouse clicks not grab focus is useful in places like toolbars where you don’t want the keyboard focus removed from the main area of the application.

    Parameters

    • Deprecatedfocus_on_click: boolean

      whether the widget should grab focus when clicked with the mouse

    Returns void

  • Sets whether the widget can own the input focus.

    Widget implementations should set focusable to true in their init() function if they want to receive keyboard input.

    Note that having focusable be true is only one of the necessary conditions for being focusable. A widget must also be sensitive and can-focus and not have an ancestor that is marked as not can-focus in order to receive input focus.

    See Gtk.Widget.grab_focus for actually setting the input focus on a widget.

    Parameters

    • Deprecatedfocusable: boolean

      whether or not widget can own the input focus

    Returns void

  • Sets the font map to use for text rendering in the widget.

    The font map is the object that is used to look up fonts. Setting a custom font map can be useful in special situations, e.g. when you need to add application-specific fonts to the set of available fonts.

    When not set, the widget will inherit the font map from its parent.

    Parameters

    Returns void

  • Sets the has-tooltip property on the widget.

    Parameters

    • Deprecatedhas_tooltip: boolean

      whether or not widget has a tooltip

    Returns void

  • Sets whether the widget would like any available extra horizontal space.

    When a user resizes a window, widgets with expand set to true generally receive the extra space. For example, a list or scrollable area or document in your window would often be set to expand.

    Call this function to set the expand flag if you would like your widget to become larger horizontally when the window has extra room.

    By default, widgets automatically expand if any of their children want to expand. (To see if a widget will automatically expand given its current children and state, call Gtk.Widget.compute_expand. A widget can decide how the expandability of children affects its own expansion by overriding the compute_expand virtual method on Gtk.Widget.).

    Setting hexpand explicitly with this function will override the automatic expand behavior.

    This function forces the widget to expand or not to expand, regardless of children. The override occurs because Gtk.Widget.set_hexpand sets the hexpand-set property (see Gtk.Widget.set_hexpand_set) which causes the widget’s hexpand value to be used, rather than looking at children and widget state.

    Parameters

    • Deprecatedexpand: boolean

      whether to expand

    Returns void

  • Sets whether the hexpand flag will be used.

    The Gtk.Widget.hexpand_set property will be set automatically when you call Gtk.Widget.set_hexpand to set hexpand, so the most likely reason to use this function would be to unset an explicit expand flag.

    If hexpand is set, then it overrides any computed expand value based on child widgets. If hexpand is not set, then the expand value depends on whether any children of the widget would like to expand.

    There are few reasons to use this function, but it’s here for completeness and consistency.

    Parameters

    • Deprecatedset: boolean

      value for hexpand-set property

    Returns void

  • Sets whether the widget acts like a modal dialog, with respect to event delivery.

    Parameters

    • Deprecatedlimit_events: boolean

      whether to limit events

    Returns void

  • Sets a widgets name.

    Setting a name allows you to refer to the widget from a CSS file. You can apply a style to widgets with a particular name in the CSS file. See the documentation for the CSS syntax (on the same page as the docs for Gtk.StyleContext.

    Note that the CSS syntax has certain special characters to delimit and represent elements in a selector (period, #, >, *...), so using these will make your widget impossible to match by name. Any combination of alphanumeric symbols, dashes and underscores will suffice.

    Parameters

    • Deprecatedname: string

      name for the widget

    Returns void

  • Requests the widget to be rendered partially transparent.

    An opacity of 0 is fully transparent and an opacity of 1 is fully opaque.

    Opacity works on both toplevel widgets and child widgets, although there are some limitations: For toplevel widgets, applying opacity depends on the capabilities of the windowing system. On X11, this has any effect only on X displays with a compositing manager, see Gdk.Display.is_composited. On Windows and Wayland it will always work, although setting a window’s opacity after the window has been shown may cause some flicker.

    Note that the opacity is inherited through inclusion — if you set a toplevel to be partially translucent, all of its content will appear translucent, since it is ultimatively rendered on that toplevel. The opacity value itself is not inherited by child widgets (since that would make widgets deeper in the hierarchy progressively more translucent). As a consequence, Gtk.Popover instances and other Gtk.Native widgets with their own surface will use their own opacity value, and thus by default appear non-translucent, even if they are attached to a toplevel that is translucent.

    Parameters

    • Deprecatedopacity: number

      desired opacity, between 0 and 1

    Returns void

  • Sets the parent widget of the widget.

    This takes care of details such as updating the state and style of the child to reflect its new location and resizing the parent. The opposite function is Gtk.Widget.unparent.

    This function is useful only when implementing subclasses of Gtk.Widget.

    Parameters

    Returns void

  • Sets whether the widget will be treated as the default widget within its toplevel when it has the focus, even if another widget is the default.

    Parameters

    • Deprecatedreceives_default: boolean

      whether or not widget can be a default widget

    Returns void

  • Sets the sensitivity of the widget.

    A widget is sensitive if the user can interact with it. Insensitive widgets are “grayed out” and the user can’t interact with them. Insensitive widgets are known as “inactive”, “disabled”, or “ghosted” in some other toolkits.

    Parameters

    • Deprecatedsensitive: boolean

      true to make the widget sensitive

    Returns void

  • Sets the minimum size of the widget.

    That is, the widget’s size request will be at least width by height. You can use this function to force a widget to be larger than it normally would be.

    In most cases, Gtk.Window.set_default_size is a better choice for toplevel windows than this function; setting the default size will still allow users to shrink the window. Setting the size request will force them to leave the window at least as large as the size request.

    Note the inherent danger of setting any fixed size - themes, translations into other languages, different fonts, and user action can all change the appropriate size for a given widget. So, it is basically impossible to hardcode a size that will always work.

    The size request of a widget is the smallest size a widget can accept while still functioning well and drawing itself correctly. However in some strange cases a widget may be allocated less than its requested size, and in many cases a widget may be allocated more space than it requested.

    If the size request in a given direction is -1 (unset), then the “natural” size request of the widget will be used instead.

    The size request set here does not include any margin from the properties Gtk.Widget.margin_start, Gtk.Widget.margin_end, Gtk.Widget.margin_top, and Gtk.Widget.margin_bottom, but it does include pretty much all other padding or border properties set by any subclass of Gtk.Widget.

    Parameters

    • Deprecatedwidth: number

      width widget should request, or -1 to unset

    • Deprecatedheight: number

      height widget should request, or -1 to unset

    Returns void

  • Turns on flag values in the current widget state.

    Typical widget states are insensitive, prelighted, etc.

    This function accepts the values Gtk.StateFlags.DIR-LTR and Gtk.StateFlags.DIR-RTL but ignores them. If you want to set the widget's direction, use Gtk.Widget.set_direction.

    This function is for use in widget implementations.

    Parameters

    • Deprecatedflags: Gtk.StateFlags

      state flags to turn on

    • Deprecatedclear: boolean

      whether to clear state before turning on flags

    Returns void

  • Sets the contents of the tooltip for widget.

    markup must contain Pango markup.

    This function will take care of setting the Gtk.Widget.has_tooltip as a side effect, and of the default handler for the Gtk.Widget::query-tooltip signal.

    See also Gtk.Tooltip.set_markup.

    Parameters

    • OptionalDeprecatedmarkup: string

      the contents of the tooltip for widget

    Returns void

  • Sets the contents of the tooltip for the widget.

    If text contains any markup, it will be escaped.

    This function will take care of setting Gtk.Widget.has_tooltip as a side effect, and of the default handler for the Gtk.Widget::query-tooltip signal.

    See also Gtk.Tooltip.set_text.

    Parameters

    • OptionalDeprecatedtext: string

      the contents of the tooltip for widget

    Returns void

  • Sets the visibility state of widget.

    Note that setting this to true doesn’t mean the widget is actually viewable, see Gtk.Widget.get_visible.

    Parameters

    • Deprecatedvisible: boolean

      whether the widget should be shown or not

    Returns void

  • Returns whether the widget should contribute to the measuring and allocation of its parent.

    This is false for invisible children, but also for children that have their own surface, such as Gtk.Popover instances.

    Returns boolean

    true if child should be included in measuring and allocating

  • Flags a widget to be displayed.

    Any widget that isn’t shown will not appear on the screen.

    Remember that you have to show the containers containing a widget, in addition to the widget itself, before it will appear onscreen.

    When a toplevel widget is shown, it is immediately realized and mapped; other shown widgets are realized and mapped when their toplevel widget is realized and mapped.

    Returns void

  • Snapshots a child of the widget.

    When a widget receives a call to the snapshot function, it must send synthetic Gtk.Widget.snapshot calls to all children. This function provides a convenient way of doing this. A widget, when it receives a call to its Gtk.Widget.snapshot function, calls gtk_widget_snapshot_child() once for each child, passing in the snapshot the widget received.

    This function takes care of translating the origin of snapshot, and deciding whether the child needs to be snapshot.

    It does nothing for children that implement Gtk.Native.

    Parameters

    Returns void

  • Translates coordinates relative to src_widget’s allocation to coordinates relative to dest_widget’s allocations.

    In order to perform this operation, both widget must share a common ancestor. If that is not the case, dest_x and dest_y are set to 0 and false is returned.

    Parameters

    • Deprecateddest_widget: Gtk.Widget

      another widget

    • Deprecatedsrc_x: number

      X position in widget coordinates of src_widget

    • Deprecatedsrc_y: number

      Y position in widget coordinates of src_widget

    Returns [boolean, number, number]

    true if src_widget and dest_widget have a common ancestor, false otherwise

  • Causes a widget to be unmapped if it’s currently mapped.

    This function is only for use in widget implementations.

    Returns void

  • Removes widget from its parent.

    This function is only for use in widget implementations, typically in dispose.

    Returns void

  • Causes a widget to be unrealized.

    This frees all GDK resources associated with the widget.

    This function is only useful in widget implementations.

    Returns void

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

    Parameters

    • Deprecatedhexpand_p: boolean
    • Deprecatedvexpand_p: boolean

    Returns void

  • Tests if a given point is contained in the widget.

    The coordinates for (x, y) must be in widget coordinates, so (0, 0) is assumed to be the top left of widget's content area.

    Parameters

    • Deprecatedx: number

      X coordinate to test, relative to widget's origin

    • Deprecatedy: number

      Y coordinate to test, relative to widget's origin

    Returns boolean

  • Vfunc called when the CSS used by widget was changed. Widgets should then discard their caches that depend on CSS and queue resizes or redraws accordingly. The default implementation will take care of this for all the default CSS properties, so implementations must chain up.

    Parameters

    Returns void

  • Causes widget to have the keyboard focus for the window that it belongs to.

    If widget is not focusable, or its Gtk.Widget.grab_focus implementation cannot transfer the focus to a descendant of widget that is focusable, it will not take focus and false will be returned.

    Calling Gtk.Widget.grab_focus on an already focused widget is allowed, should not have an effect, and return true.

    Returns boolean

  • Reverses the effects of [method.Gtk.Widget.show].

    This is causing the widget to be hidden (invisible to the user).

    Returns void

  • Emits the Gtk.Widget::keynav-failed signal on the widget.

    This function should be called whenever keyboard navigation within a single widget hits a boundary.

    The return value of this function should be interpreted in a way similar to the return value of Gtk.Widget.child_focus. When true is returned, stay in the widget, the failed keyboard navigation is ok and/or there is nowhere we can/should move the focus to. When false is returned, the caller should continue with keyboard navigation outside the widget, e.g. by calling Gtk.Widget.child_focus on the widget’s toplevel.

    The default Gtk.Widget::keynav-failed handler returns false for Gtk.DirectionType.TAB-FORWARD and Gtk.DirectionType.TAB-BACKWARD. For the other values of Gtk.DirectionType it returns true.

    Whenever the default handler returns true, it also calls Gtk.Widget.error_bell to notify the user of the failed keyboard navigation.

    A use case for providing an own implementation of ::keynav-failed (either by connecting to it or by overriding it) would be a row of Gtk.Entry widgets where the user should be able to navigate the entire row with the cursor keys, as e.g. known from user interfaces that require entering license keys.

    Parameters

    Returns boolean

  • Emits the Gtk.Widget::mnemonic-activate signal.

    Parameters

    • Deprecatedgroup_cycling: boolean

      true if there are other widgets with the same mnemonic

    Returns boolean

  • Signal emitted when “has-tooltip” is true and the hover timeout has expired with the cursor hovering “above” widget; or emitted when widget got focus in keyboard mode.

    Parameters

    • Deprecatedx: number
    • Deprecatedy: number
    • Deprecatedkeyboard_tooltip: boolean
    • Deprecatedtooltip: Gtk.Tooltip

    Returns boolean

  • Creates the GDK resources associated with a widget.

    Normally realization happens implicitly; if you show a widget and all its parent containers, then the widget will be realized and mapped automatically.

    Realizing a widget requires all the widget’s parent widgets to be realized; calling this function realizes the widget’s parents in addition to widget itself. If a widget is not yet inside a toplevel window when you realize it, bad things will happen.

    This function is primarily used in widget implementations, and isn’t very useful otherwise. Many times when you think you might need it, a better approach is to connect to a signal that will be called after the widget is realized automatically, such as Gtk.Widget::realize.

    Returns void

  • Flags a widget to be displayed.

    Any widget that isn’t shown will not appear on the screen.

    Remember that you have to show the containers containing a widget, in addition to the widget itself, before it will appear onscreen.

    When a toplevel widget is shown, it is immediately realized and mapped; other shown widgets are realized and mapped when their toplevel widget is realized and mapped.

    Returns void

  • Called to set the allocation, if the widget does not have a layout manager.

    Parameters

    • Deprecatedwidth: number
    • Deprecatedheight: number
    • Deprecatedbaseline: number

    Returns void

  • Causes a widget to be unrealized.

    This frees all GDK resources associated with the widget.

    This function is only useful in widget implementations.

    Returns void

  • Parameters

    • Deprecatedname: string

      ID of the child defined in the template XML

    • Deprecatedinternal_child: boolean

      whether the child should be accessible as an “internal-child” when this class is used in GtkBuilder XML

    • Deprecatedstruct_offset: number

      The offset into the composite widget’s instance public or private structure where the automated child pointer should be set, or 0 to not assign the pointer

    Returns void

  • Parameters

    • Deprecatedaction_name: string

      name of the action

    • Deprecatedproperty_name: string

      name of a property in instances of widget_class or any parent class

    Returns void

  • Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created GObject.ParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.

    This function is meant to be called from the interface's default vtable initialization function (the class_init member of GObject.TypeInfo.) It must not be called after after class_init has been called for any object types implementing this interface.

    If pspec is a floating reference, it will be consumed.

    Parameters

    Returns void

  • Parameters

    • Deprecatedproperty_id: number

      the new property ID

    • Deprecatedname: string

      the name of a property registered in a parent class or in an interface of this class.

    Returns void

Interfaces

ConstructorProps
SignalSignatures