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().
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 is the children field of GtkBox, and contains both widgets packed GTK_PACK_START as well as widgets packed GTK_PACK_END, in the order that these widgets were added to box. A widget's position in the box children list determines where the widget is packed into box. A child widget at some position in the list will be packed just after all other widgets of the same packing type that appear earlier in the list.
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 availible 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 the way child is packed into box.
Sets the "homogeneous" property of box, controlling whether or not all children of box are given equal space in the box.
Sets the "spacing" property of box, which is the number of pixels to place between children of box.
the main Gtk struct
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.
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 while it's not inside 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.
Returns the resize mode for the container. See gtk_container_set_resize_mode().
Sets the resize mode for the container. The resize mode of a container determines whether a resize request will be passed to the container's parent, queued for later execution or executed immediately.
Invokes callback on each non-internal child of container. See gtk_container_forall() for details on what constitutes an "internal" child. Most applications should use gtk_container_foreach(), rather than gtk_container_forall().
Returns the container's non-internal children. See gtk_container_forall() for details on what constitutes an "internal" child.
Returns a newly created widget path representing all the widget hierarchy from the toplevel down to and including child.
Sets the reallocate_redraws flag of the container to the given value. Containers requesting reallocation redraws get automatically redrawn if any of their children changed allocation.
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(). Since 2.14
Sets, or unsets if child is NULL, the focused child of container. This function emits the GtkContainer::set_focus_child signal of container. Implementations of GtkContainer can override the default behaviour by overriding the class closure of this signal. This is function is mostly meant to be used by widgets. Applications can use gtk_widget_grab_focus() to manualy set the focus to a specific widget.
Retrieves the vertical focus adjustment for the container. See gtk_container_set_focus_vadjustment().
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. The adjustments have to be in pixel units and in the same coordinate system as the allocation for immediate children of the container.
Retrieves the horizontal focus adjustment for the container. See gtk_container_set_focus_hadjustment().
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. The adjustments have to be in pixel units and in the same coordinate system as the allocation for immediate children of the container.
Warning gtk_container_resize_children is deprecated and should not be used in newly-written code. 3.10
Returns the type of the children supported by the container. Note that this may return G_TYPE_NONE to indicate that no more children can be added, e.g. for a GtkPaned which already has two children.
Gets the value of a child property for child and container.
Sets a child property for child and container.
Gets the values of one or more child properties for child and container.
Sets one or more child properties for child and container.
Emits a "child-notify" signal for the child property child_property on widget. This is an analogue of g_object_notify() for child properties. Also see gtk_widget_child_notify().
Invokes callback on each 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. Most applications should use gtk_container_foreach(), rather than gtk_container_forall(). Virtual: forall
Retrieves the border width of the container. See gtk_container_set_border_width().
Sets the border width of the container. The border width of a container is the amount of space to leave around the outside of the container. The only exception to this is GtkWindow; because toplevel windows can't leave space outside, they leave the space inside. The border is added on all sides of the container. To add space to only one side, one approach is to create a GtkAlignment widget, call gtk_widget_set_size_request() to give it a size, and place it on the side of the container as a spacer.
When a container receives a call to the draw function, it must send synthetic "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 "draw" function, calls gtk_container_propagate_draw() once for each child, passing in the cr the container received. gtk_container_propagate_draw() takes care of translating the origin of cr, and deciding whether the draw needs to be sent to the child. It is a convenient and optimized way of getting the same effect as calling gtk_widget_draw() on the child directly. In most cases, a container can simply either inherit the "draw" implementation from GtkContainer, or do some drawing and then chain to the ::draw implementation from GtkContainer.
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.
Sets a focus chain, overriding the one computed automatically by GTK+. In principle each widget in the chain should be a descendant of the container, but this is not enforced by this method, since it's allowed to set the focus chain before you pack the widgets, or have a widget in the chain that isn't always packed. The necessary checks are done when the focus chain is actually traversed.
Removes a focus chain explicitly set with gtk_container_set_focus_chain().
Finds a child property of a container class by name.
Installs a child property on a container class.
Returns all child properties of a container class.
Modifies a subclass of GtkContainerClass to automatically add and remove the border-width setting on GtkContainer. This allows the subclass to ignore the border width in its size request and allocate methods. The intent is for a subclass to invoke this in its class_init function. gtk_container_class_handle_border_width() is necessary because it would break API too badly to make this behavior the default. So subclasses must "opt in" to the parent class handling border_width for them.
the main Gtk struct as a void*
Retrieves the orientation of the orientable. Since 2.16
Sets the orientation of the orientable. Since 2.16
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". 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
Note that a single-row or single-column GtkGrid provides exactly the same functionality as GtkBox.