Sets our main struct and passes it to the parent class.
Creates a new #GtkBox.
Gets the value set by gtk_box_set_baseline_position().
Get the main Gtk struct
Retrieves the center widget of the box.
Returns whether the box is homogeneous (all children are the same size). See gtk_box_set_homogeneous().
Gets the value set by gtk_box_set_spacing().
the main Gtk struct as a void*
Adds @child to @box, packed with reference to the end of @box. The @child is packed after (away from end of) any other child packed with reference to the end of @box.
Adds @child to @box, packed with reference to the start of @box. The @child is packed after any other child packed with reference to the start of @box.
Obtains information about how @child is packed into @box.
Moves @child to a new @position in the list of @box children. The list contains widgets packed #GTK_PACK_START as well as widgets packed #GTK_PACK_END, in the order that these widgets were added to @box.
Sets the baseline position of a box. This affects only horizontal boxes with at least one baseline aligned child. If there is more vertical space available than requested, and the baseline is not allocated by the parent then @position is used to allocate the baseline wrt the extra space available.
Sets a center widget; that is a child widget that will be centered with respect to the full width of the box, even if the children at either side take up different amounts of space.
Sets the way @child is packed into @box.
Sets the #GtkBox:homogeneous property of @box, controlling whether or not all children of @box are given equal space in the box.
Sets the #GtkBox:spacing property of @box, which is the number of pixels to place between children of @box.
the main Gtk struct
the main Gtk struct
Get the main Gtk struct
the main Gtk struct as a void*
Removes all widgets from the container
Adds @widget to @container. Typically used for simple containers such as #GtkWindow, #GtkFrame, or #GtkButton; for more complicated layout containers such as #GtkBox or #GtkGrid, this function will pick default packing parameters that may not be correct. So consider functions such as gtk_box_pack_start() and gtk_grid_attach() as an alternative to gtk_container_add() in those cases. A widget may be added to only one container at a time; you can’t place the same widget inside two different containers.
Gets the value of a child property for @child and @container.
Gets the values of one or more child properties for @child and @container.
Emits a #GtkWidget::child-notify signal for the [child property][child-properties] @child_property on the child.
Emits a #GtkWidget::child-notify signal for the [child property][child-properties] specified by @pspec on the child.
Sets a child property for @child and @container.
Sets one or more child properties for @child and @container.
Returns the type of the children supported by the container.
Invokes @callback on each direct child of @container, including children that are considered “internal” (implementation details of the container). “Internal” children generally weren’t added by the user of the container, but were added by the container implementation itself.
Invokes @callback on each non-internal child of @container. See gtk_container_forall() for details on what constitutes an “internal” child. For all practical purposes, this function should iterate over precisely those child widgets that were added to the container by the application with explicit add() calls.
Retrieves the border width of the container. See gtk_container_set_border_width().
Returns the container’s non-internal children. See gtk_container_forall() for details on what constitutes an "internal" child.
Retrieves the focus chain of the container, if one has been set explicitly. If no focus chain has been explicitly set, GTK+ computes the focus chain based on the positions of the children. In that case, GTK+ stores %NULL in @focusable_widgets and returns %FALSE.
Returns the current focus child widget inside @container. This is not the currently focused widget. That can be obtained by calling gtk_window_get_focus().
Retrieves the horizontal focus adjustment for the container. See gtk_container_set_focus_hadjustment ().
Retrieves the vertical focus adjustment for the container. See gtk_container_set_focus_vadjustment().
Returns a newly created widget path representing all the widget hierarchy from the toplevel down to and including @child.
Returns the resize mode for the container. See gtk_container_set_resize_mode ().
When a container receives a call to the draw function, it must send synthetic #GtkWidget::draw calls to all children that don’t have their own #GdkWindows. This function provides a convenient way of doing this. A container, when it receives a call to its #GtkWidget::draw function, calls gtk_container_propagate_draw() once for each child, passing in the @cr the container received.
Removes @widget from @container. @widget must be inside @container. Note that @container will own a reference to @widget, and that this may be the last reference held; so removing a widget from its container can destroy that widget. If you want to use @widget again, you need to add a reference to it before removing it from a container, using g_object_ref(). If you don’t want to use @widget again it’s usually more efficient to simply destroy it directly using gtk_widget_destroy() since this will remove it from the container and help break any circular reference count cycles.
Sets the border width of the container.
Sets a focus chain, overriding the one computed automatically by GTK+.
Sets, or unsets if @child is %NULL, the focused child of @container.
Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. This function sets the horizontal alignment. See gtk_scrolled_window_get_hadjustment() for a typical way of obtaining the adjustment and gtk_container_set_focus_vadjustment() for setting the vertical adjustment.
Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. This function sets the vertical alignment. See gtk_scrolled_window_get_vadjustment() for a typical way of obtaining the adjustment and gtk_container_set_focus_hadjustment() for setting the horizontal adjustment.
Sets the @reallocate_redraws flag of the container to the given value.
Sets the resize mode for the container.
Removes a focus chain explicitly set with gtk_container_set_focus_chain().
Get the main Gtk struct
the main Gtk struct as a void*
Retrieves the orientation of the @orientable.
Sets the orientation of the @orientable.
The GtkBox widget organizes child widgets into a rectangular area.
The rectangular area of a GtkBox is organized into either a single row or a single column of child widgets depending upon the orientation. Thus, all children of a GtkBox are allocated one dimension in common, which is the height of a row, or the width of a column.
GtkBox uses a notion of packing. Packing refers to adding widgets with reference to a particular position in a #GtkContainer. For a GtkBox, there are two reference positions: the start and the end of the box. For a vertical #GtkBox, the start is defined as the top of the box and the end is defined as the bottom. For a horizontal #GtkBox the start is defined as the left side and the end is defined as the right side.
Use repeated calls to gtk_box_pack_start() to pack widgets into a GtkBox from start to end. Use gtk_box_pack_end() to add widgets from end to start. You may intersperse these calls and add widgets from both ends of the same GtkBox.
Because GtkBox is a #GtkContainer, you may also use gtk_container_add() to insert widgets into the box, and they will be packed with the default values for expand and fill child properties. Use gtk_container_remove() to remove widgets from the GtkBox.
Use gtk_box_set_homogeneous() to specify whether or not all children of the GtkBox are forced to get the same amount of space.
Use gtk_box_set_spacing() to determine how much space will be minimally placed between all children in the GtkBox. Note that spacing is added between the children, while padding added by gtk_box_pack_start() or gtk_box_pack_end() is added on either side of the widget it belongs to.
Use gtk_box_reorder_child() to move a GtkBox child to a different place in the box.
Use gtk_box_set_child_packing() to reset the expand, fill and padding child properties. Use gtk_box_query_child_packing() to query these fields.
Note that a single-row or single-column #GtkGrid provides exactly the same functionality as #GtkBox.
CSS nodes
GtkBox uses a single CSS node with name box.
In horizontal orientation, the nodes of the children are always arranged from left to right. So :first-child will always select the leftmost child, regardless of text direction.