Gtk.FontButton
Description: Reference for Gtk.FontButton

### Class

# GtkFontButton

deprecated: 4.10

#### Description [src]

    final class Gtk.FontButton : Gtk.Widget
      implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget, Gtk.FontChooser {
      /* No available fields */
    }

The `GtkFontButton` allows to open a font chooser dialog to change the font.

It is suitable widget for selecting a font in a preference dialog.

# CSS nodes

    fontbutton
    ╰── button.font
        ╰── [content]

`GtkFontButton` has a single CSS node with name fontbutton which contains a button node with the .font style class.

Deprecated since: 4.10

Use `GtkFontDialogButton` instead.

#### Hierarchy

#### Ancestors

- GtkWidget
- GInitiallyUnowned
- GObject

#### Implements

- GtkAccessible
- GtkBuildable
- GtkConstraintTarget
- GtkFontChooser

#### Constructors

###### gtk_font_button_new

Creates a new font picker widget.

deprecated: 4.10

###### gtk_font_button_new_with_font

Creates a new font picker widget showing the given font.

deprecated: 4.10

#### Instance methods

###### gtk_font_button_get_modal

Gets whether the dialog is modal.

deprecated: 4.10

###### gtk_font_button_get_title

Retrieves the title of the font chooser dialog.

deprecated: 4.10

###### gtk_font_button_get_use_font

Returns whether the selected font is used in the label.

deprecated: 4.10

###### gtk_font_button_get_use_size

Returns whether the selected size is used in the label.

deprecated: 4.10

###### gtk_font_button_set_modal

Sets whether the dialog should be modal.

deprecated: 4.10

###### gtk_font_button_set_title

Sets the title for the font chooser dialog.

deprecated: 4.10

###### gtk_font_button_set_use_font

If `use_font` is `TRUE`, the font name will be written using the selected font.

deprecated: 4.10

###### gtk_font_button_set_use_size

If `use_size` is `TRUE`, the font name will be written using the selected size.

deprecated: 4.10

##### Methods inherited from GtkWidget (162)

Please see GtkWidget for a full list of methods.

##### Methods inherited from GObject (43)

Please see GObject for a full list of methods.

##### Methods inherited from GtkAccessible (19)

###### gtk_accessible_announce

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

since: 4.14

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

since: 4.10

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the accessible implementation for the given `GtkAccessible`.

since: 4.10

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

since: 4.10

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

since: 4.10

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

since: 4.10

###### gtk_accessible_get_platform_state

Query a platform state, such as focus.

since: 4.10

###### gtk_accessible_reset_property

Resets the accessible `property` to its default value.

###### gtk_accessible_reset_relation

Resets the accessible `relation` to its default value.

###### gtk_accessible_reset_state

Resets the accessible `state` to its default value.

###### gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

since: 4.10

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling of `self`.

since: 4.10

###### gtk_accessible_update_property

Updates a list of accessible properties.

###### gtk_accessible_update_property_value

Updates an array of accessible properties.

###### gtk_accessible_update_relation

Updates a list of accessible relations.

###### gtk_accessible_update_relation_value

Updates an array of accessible relations.

###### gtk_accessible_update_state

Updates a list of accessible states. See the `GtkAccessibleState` documentation for the value types of accessible states.

###### gtk_accessible_update_state_value

Updates an array of accessible states.

##### Methods inherited from GtkBuildable (1)

###### gtk_buildable_get_buildable_id

Gets the ID of the `buildable` object.

##### Methods inherited from GtkFontChooser (19)

###### gtk_font_chooser_get_font

Gets the currently-selected font name.

deprecated: 4.10

###### gtk_font_chooser_get_font_desc

Gets the currently-selected font.

deprecated: 4.10

###### gtk_font_chooser_get_font_face

Gets the `PangoFontFace` representing the selected font group details (i.e. family, slant, weight, width, etc).

deprecated: 4.10

###### gtk_font_chooser_get_font_family

Gets the `PangoFontFamily` representing the selected font family.

deprecated: 4.10

###### gtk_font_chooser_get_font_features

Gets the currently-selected font features.

deprecated: 4.10

###### gtk_font_chooser_get_font_map

Gets the custom font map of this font chooser widget, or `NULL` if it does not have one.

deprecated: 4.10

###### gtk_font_chooser_get_font_size

The selected font size.

deprecated: 4.10

###### gtk_font_chooser_get_language

Gets the language that is used for font features.

deprecated: 4.10

###### gtk_font_chooser_get_level

Returns the current level of granularity for selecting fonts.

deprecated: 4.10

###### gtk_font_chooser_get_preview_text

Gets the text displayed in the preview area.

deprecated: 4.10

###### gtk_font_chooser_get_show_preview_entry

Returns whether the preview entry is shown or not.

deprecated: 4.10

###### gtk_font_chooser_set_filter_func

Adds a filter function that decides which fonts to display in the font chooser.

deprecated: 4.10

###### gtk_font_chooser_set_font

Sets the currently-selected font.

deprecated: 4.10

###### gtk_font_chooser_set_font_desc

Sets the currently-selected font from `font_desc`.

deprecated: 4.10

###### gtk_font_chooser_set_font_map

Sets a custom font map to use for this font chooser widget.

deprecated: 4.10

###### gtk_font_chooser_set_language

Sets the language to use for font features.

deprecated: 4.10

###### gtk_font_chooser_set_level

Sets the desired level of granularity for selecting fonts.

deprecated: 4.10

###### gtk_font_chooser_set_preview_text

Sets the text displayed in the preview area.

deprecated: 4.10

###### gtk_font_chooser_set_show_preview_entry

Shows or hides the editable preview entry.

deprecated: 4.10

#### Properties

###### Gtk.FontButton:modal

Whether the font chooser dialog should be modal.

###### Gtk.FontButton:title

The title of the font chooser dialog.

###### Gtk.FontButton:use-font

Whether the buttons label will be drawn in the selected font.

###### Gtk.FontButton:use-size

Whether the buttons label will use the selected font size.

##### Properties inherited from GtkWidget (34)

###### Gtk.Widget:can-focus

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

###### Gtk.Widget:can-target

Whether the widget can receive pointer events.

###### Gtk.Widget:css-classes

A list of css classes applied to this widget.

###### Gtk.Widget:css-name

The name of this widget in the CSS tree.

###### Gtk.Widget:cursor

The cursor used by `widget`.

###### Gtk.Widget:focus-on-click

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

###### Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

###### Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

###### Gtk.Widget:has-default

Whether the widget is the default widget.

###### Gtk.Widget:has-focus

Whether the widget has the input focus.

###### Gtk.Widget:has-tooltip

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

###### Gtk.Widget:height-request

Override for height request of the widget.

###### Gtk.Widget:hexpand

Whether to expand horizontally.

###### Gtk.Widget:hexpand-set

Whether to use the `hexpand` property.

###### Gtk.Widget:layout-manager

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

###### Gtk.Widget:margin-bottom

Margin on bottom side of widget.

###### Gtk.Widget:margin-end

Margin on end of widget, horizontally.

###### Gtk.Widget:margin-start

Margin on start of widget, horizontally.

###### Gtk.Widget:margin-top

Margin on top side of widget.

###### Gtk.Widget:name

The name of the widget.

###### Gtk.Widget:opacity

The requested opacity of the widget.

###### Gtk.Widget:overflow

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

###### Gtk.Widget:parent

The parent widget of this widget.

###### Gtk.Widget:receives-default

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

###### Gtk.Widget:root

The `GtkRoot` widget of the widget tree containing this widget.

###### Gtk.Widget:scale-factor

The scale factor of the widget.

###### Gtk.Widget:sensitive

Whether the widget responds to input.

###### Gtk.Widget:tooltip-markup

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

###### Gtk.Widget:tooltip-text

Sets the text of tooltip to be the given string.

###### Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

###### Gtk.Widget:vexpand

Whether to expand vertically.

###### Gtk.Widget:vexpand-set

Whether to use the `vexpand` property.

###### Gtk.Widget:visible

Whether the widget is visible.

###### Gtk.Widget:width-request

Override for width request of the widget.

##### Properties inherited from GtkAccessible (1)

###### GtkAccessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

##### Properties inherited from GtkFontChooser (7)

###### GtkFontChooser:font

The font description as a string, e.g. “Sans Italic 12”.

deprecated: 4.10

###### GtkFontChooser:font-desc

The font description as a `PangoFontDescription`.

deprecated: 4.10

###### GtkFontChooser:font-features

The selected font features.

deprecated: 4.10

###### GtkFontChooser:language

The language for which the font features were selected.

deprecated: 4.10

###### GtkFontChooser:level

The level of granularity to offer for selecting fonts.

deprecated: 4.10

###### GtkFontChooser:preview-text

The string with which to preview the font.

deprecated: 4.10

###### GtkFontChooser:show-preview-entry

Whether to show an entry to change the preview text.

deprecated: 4.10

#### Signals

###### Gtk.FontButton::activate

Emitted to when the font button is activated.

since: 4.4

###### Gtk.FontButton::font-set

Emitted when the user selects a font.

##### Signals inherited from GtkWidget (13)

###### GtkWidget::destroy

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

###### GtkWidget::direction-changed

Emitted when the text direction of a widget changes.

###### GtkWidget::hide

Emitted when `widget` is hidden.

###### GtkWidget::keynav-failed

Emitted if keyboard navigation fails.

###### GtkWidget::map

Emitted when `widget` is going to be mapped.

###### GtkWidget::mnemonic-activate

Emitted when a widget is activated via a mnemonic.

###### GtkWidget::move-focus

Emitted when the focus is moved.

###### GtkWidget::query-tooltip

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

###### GtkWidget::realize

Emitted when `widget` is associated with a `GdkSurface`.

###### GtkWidget::show

Emitted when `widget` is shown.

###### GtkWidget::state-flags-changed

Emitted when the widget state changes.

###### GtkWidget::unmap

Emitted when `widget` is going to be unmapped.

###### GtkWidget::unrealize

Emitted when the `GdkSurface` associated with `widget` is destroyed.

##### Signals inherited from GObject (1)

###### GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

##### Signals inherited from GtkFontChooser (1)

###### GtkFontChooser::font-activated

Emitted when a font is activated.

deprecated: 4.10