### Class

# Panel Dock

since: 1

#### Description [src]

    class Panel.Dock : Gtk.Widget
      implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget {
      /* No available fields */
    }

The `PanelDock` is a widget designed to contain widgets that can be docked. Use the `PanelDock` as the top widget of your dockable UI.

A `PanelDock` is divided in 5 areas: `PANEL_AREA_TOP`, `PANEL_AREA_BOTTOM`, `PANEL_AREA_START`, `PANEL_AREA_END` represent the surrounding areas that can revealed. `PANEL_AREA_CENTER` represent the main area, that is always displayed and resized depending on the reveal state of the surrounding areas.

It will contain a `PanelDockChild` for each of the areas in use, albeit this is done by the widget.

Available since: 1

#### Ancestors

- GtkWidget
- GInitiallyUnowned
- GObject

#### Implements

- GtkAccessible
- GtkBuildable
- GtkConstraintTarget

#### Constructors

###### panel_dock_new

Create a new `PanelDock`.

since: 1

#### Instance methods

###### panel_dock_foreach_frame

Invokes a callback for each frame in the dock.

since: 1

###### panel_dock_get_can_reveal_area

Tells if the panel area can be revealed.

since: 1

###### panel_dock_get_can_reveal_bottom

Tells if the bottom panel area can be revealed.

since: 1

###### panel_dock_get_can_reveal_end

Tells if the end panel area can be revealed.

since: 1

###### panel_dock_get_can_reveal_start

Tells if the start panel area can be revealed.

since: 1

###### panel_dock_get_can_reveal_top

Tells if the top panel area can be revealed.

since: 1

###### panel_dock_get_reveal_area

Tells if an area if revealed.

since: 1

###### panel_dock_get_reveal_bottom

Tells if the bottom area is revealed.

since: 1

###### panel_dock_get_reveal_end

Tells if the end area is revealed.

since: 1

###### panel_dock_get_reveal_start

Tells if the start area is revealed.

since: 1

###### panel_dock_get_reveal_top

Tells if the top area is revealed.

since: 1

###### panel_dock_remove

Removes a widget from the dock. If `widget` is not a `DockChild`, then the closest `DockChild` parent is removed.

since: 1

###### panel_dock_set_bottom_height

Set the height of the bottom area.

since: 1

###### panel_dock_set_end_width

Set the width of the end area.

since: 1

###### panel_dock_set_reveal_area

Sets the reveal status of the area.

since: 1

###### panel_dock_set_reveal_bottom

Sets the reveal status of the bottom area.

since: 1

###### panel_dock_set_reveal_end

Sets the reveal status of the end area.

since: 1

###### panel_dock_set_reveal_start

Sets the reveal status of the start area.

since: 1

###### panel_dock_set_reveal_top

Sets the reveal status of the top area.

since: 1

###### panel_dock_set_start_width

Set the width of the start area.

since: 1

###### panel_dock_set_top_height

Set the height of the top area.

since: 1

##### 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.

unstable since: 4.14

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

unstable since: 4.10

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

unstable since: 4.0

###### gtk_accessible_get_at_context

Retrieves the accessible implementation for the given `GtkAccessible`.

unstable since: 4.10

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

unstable since: 4.10

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

unstable since: 4.10

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

unstable since: 4.10

###### gtk_accessible_get_platform_state

Query a platform state, such as focus.

unstable since: 4.10

###### gtk_accessible_reset_property

Resets the accessible `property` to its default value.

unstable since: 4.0

###### gtk_accessible_reset_relation

Resets the accessible `relation` to its default value.

unstable since: 4.0

###### gtk_accessible_reset_state

Resets the accessible `state` to its default value.

unstable since: 4.0

###### gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

unstable since: 4.10

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling of `self`.

unstable since: 4.10

###### gtk_accessible_update_property

Updates a list of accessible properties.

unstable since: 4.0

###### gtk_accessible_update_property_value

Updates an array of accessible properties.

unstable since: 4.0

###### gtk_accessible_update_relation

Updates a list of accessible relations.

unstable since: 4.0

###### gtk_accessible_update_relation_value

Updates an array of accessible relations.

unstable since: 4.0

###### gtk_accessible_update_state

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

unstable since: 4.0

###### gtk_accessible_update_state_value

Updates an array of accessible states.

unstable since: 4.0

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

###### gtk_buildable_get_buildable_id

Gets the ID of the `buildable` object.

unstable since: 4.0

#### Properties

###### Panel.Dock:bottom-height

No description available.

since: 1

###### Panel.Dock:can-reveal-bottom

No description available.

since: 1

###### Panel.Dock:can-reveal-end

No description available.

since: 1

###### Panel.Dock:can-reveal-start

No description available.

since: 1

###### Panel.Dock:can-reveal-top

No description available.

since: 1

###### Panel.Dock:end-width

No description available.

since: 1

###### Panel.Dock:reveal-bottom

No description available.

since: 1

###### Panel.Dock:reveal-end

No description available.

since: 1

###### Panel.Dock:reveal-start

No description available.

since: 1

###### Panel.Dock:reveal-top

No description available.

since: 1

###### Panel.Dock:start-width

No description available.

since: 1

###### Panel.Dock:top-height

No description available.

since: 1

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

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

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

unstable since: 4.0

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

Whether the widget can receive pointer events.

unstable since: 4.0

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

A list of css classes applied to this widget.

unstable since: 4.0

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

The name of this widget in the CSS tree.

unstable since: 4.0

###### Gtk.Widget:cursor

The cursor used by `widget`.

unstable since: 4.0

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

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

unstable since: 4.0

###### Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

unstable since: 4.0

###### Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

unstable since: 4.0

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

Whether the widget is the default widget.

unstable since: 4.0

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

Whether the widget has the input focus.

unstable since: 4.0

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

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

unstable since: 4.0

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

Override for height request of the widget.

unstable since: 4.0

###### Gtk.Widget:hexpand

Whether to expand horizontally.

unstable since: 4.0

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

Whether to use the `hexpand` property.

unstable since: 4.0

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

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

unstable since: 4.0

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

Margin on bottom side of widget.

unstable since: 4.0

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

Margin on end of widget, horizontally.

unstable since: 4.0

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

Margin on start of widget, horizontally.

unstable since: 4.0

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

Margin on top side of widget.

unstable since: 4.0

###### Gtk.Widget:name

The name of the widget.

unstable since: 4.0

###### Gtk.Widget:opacity

The requested opacity of the widget.

unstable since: 4.0

###### Gtk.Widget:overflow

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

unstable since: 4.0

###### Gtk.Widget:parent

The parent widget of this widget.

unstable since: 4.0

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

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

unstable since: 4.0

###### Gtk.Widget:root

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

unstable since: 4.0

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

The scale factor of the widget.

unstable since: 4.0

###### Gtk.Widget:sensitive

Whether the widget responds to input.

unstable since: 4.0

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

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

unstable since: 4.0

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

Sets the text of tooltip to be the given string.

unstable since: 4.0

###### Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

unstable since: 4.0

###### Gtk.Widget:vexpand

Whether to expand vertically.

unstable since: 4.0

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

Whether to use the `vexpand` property.

unstable since: 4.0

###### Gtk.Widget:visible

Whether the widget is visible.

unstable since: 4.0

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

Override for width request of the widget.

unstable since: 4.0

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

###### Gtk.Accessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

unstable since: 4.0

#### Signals

###### Panel.Dock::adopt-widget

Signal is emitted when a widget is requesting to be added via a drag-n-drop event.

since: 1.2

###### Panel.Dock::create-frame

This signal is emitted when a new frame is needed.

since: 1.2

###### Panel.Dock::panel-drag-begin

This signal is emitted when dragging of a panel begins.

since: 1

###### Panel.Dock::panel-drag-end

This signal is emitted when dragging of a panel either completes or was cancelled.

since: 1

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

###### GtkWidget::destroy

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

unstable since: 4.0

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

Emitted when the text direction of a widget changes.

unstable since: 4.0

###### GtkWidget::hide

Emitted when `widget` is hidden.

unstable since: 4.0

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

Emitted if keyboard navigation fails.

unstable since: 4.0

###### GtkWidget::map

Emitted when `widget` is going to be mapped.

unstable since: 4.0

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

Emitted when a widget is activated via a mnemonic.

unstable since: 4.0

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

Emitted when the focus is moved.

unstable since: 4.0

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

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

unstable since: 4.0

###### GtkWidget::realize

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

unstable since: 4.0

###### GtkWidget::show

Emitted when `widget` is shown.

unstable since: 4.0

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

Emitted when the widget state changes.

unstable since: 4.0

###### GtkWidget::unmap

Emitted when `widget` is going to be unmapped.

unstable since: 4.0

###### GtkWidget::unrealize

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

unstable since: 4.0

##### 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.

unstable since: 2.0

#### Class structure

    struct PanelDockClass {
      GtkWidgetClass parent_class;
      void (* panel_drag_begin) (
        PanelDock* self,
        PanelWidget* widget
      );
      void (* panel_drag_end) (
        PanelDock* self,
        PanelWidget* widget
      );

    }

No description available.

###### Class members

`parent_class: GtkWidgetClass`
  No description available.
`panel_drag_begin: void (* panel_drag_begin) ( PanelDock* self, PanelWidget* widget )`
  No description available.
`panel_drag_end: void (* panel_drag_end) ( PanelDock* self, PanelWidget* widget )`
  No description available.

#### Virtual methods

###### Panel.DockClass.panel_drag_begin

No description available.

since: 1

###### Panel.DockClass.panel_drag_end

No description available.

since: 1