GTK+ Reference Manual
<<< Previous PageHomeUpNext Page >>>

GtkContainer

Name

GtkContainer -- 

Synopsis


#include <gtk/gtk.h>


struct      GtkContainer;
#define     GTK_IS_RESIZE_CONTAINER         (widget)
#define     GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID(object, property_id, pspec)
#define     gtk_container_border_width
void        gtk_container_add               (GtkContainer *container,
                                             GtkWidget *widget);
void        gtk_container_remove            (GtkContainer *container,
                                             GtkWidget *widget);
void        gtk_container_add_with_properties
                                            (GtkContainer *container,
                                             GtkWidget *widget,
                                             const gchar *first_prop_name,
                                             ...);
GtkResizeMode gtk_container_get_resize_mode (GtkContainer *container);
void        gtk_container_set_resize_mode   (GtkContainer *container,
                                             GtkResizeMode resize_mode);
void        gtk_container_check_resize      (GtkContainer *container);
void        gtk_container_foreach           (GtkContainer *container,
                                             GtkCallback callback,
                                             gpointer callback_data);
void        gtk_container_foreach_full      (GtkContainer *container,
                                             GtkCallback callback,
                                             GtkCallbackMarshal marshal,
                                             gpointer callback_data,
                                             GtkDestroyNotify notify);
#define     gtk_container_children
GList*      gtk_container_get_children      (GtkContainer *container);
void        gtk_container_set_reallocate_redraws
                                            (GtkContainer *container,
                                             gboolean needs_redraws);
void        gtk_container_set_focus_child   (GtkContainer *container,
                                             GtkWidget *child);
GtkAdjustment* gtk_container_get_focus_vadjustment
                                            (GtkContainer *container);
void        gtk_container_set_focus_vadjustment
                                            (GtkContainer *container,
                                             GtkAdjustment *adjustment);
GtkAdjustment* gtk_container_get_focus_hadjustment
                                            (GtkContainer *container);
void        gtk_container_set_focus_hadjustment
                                            (GtkContainer *container,
                                             GtkAdjustment *adjustment);
void        gtk_container_resize_children   (GtkContainer *container);
GtkType     gtk_container_child_type        (GtkContainer *container);
void        gtk_container_child_get         (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_prop_name,
                                             ...);
void        gtk_container_child_set         (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_prop_name,
                                             ...);
void        gtk_container_child_get_property
                                            (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *property_name,
                                             GValue *value);
void        gtk_container_child_set_property
                                            (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *property_name,
                                             const GValue *value);
void        gtk_container_child_get_valist  (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_property_name,
                                             va_list var_args);
void        gtk_container_child_set_valist  (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_property_name,
                                             va_list var_args);
void        gtk_container_forall            (GtkContainer *container,
                                             GtkCallback callback,
                                             gpointer callback_data);
guint       gtk_container_get_border_width  (GtkContainer *container);
void        gtk_container_set_border_width  (GtkContainer *container,
                                             guint border_width);
void        gtk_container_propagate_expose  (GtkContainer *container,
                                             GtkWidget *child,
                                             GdkEventExpose *event);
gboolean    gtk_container_get_focus_chain   (GtkContainer *container,
                                             GList **focusable_widgets);
void        gtk_container_set_focus_chain   (GtkContainer *container,
                                             GList *focusable_widgets);
void        gtk_container_unset_focus_chain (GtkContainer *container);
GParamSpec* gtk_container_class_find_child_property
                                            (GObjectClass *cclass,
                                             const gchar *property_name);
void        gtk_container_class_install_child_property
                                            (GtkContainerClass *cclass,
                                             guint property_id,
                                             GParamSpec *pspec);
GParamSpec** gtk_container_class_list_child_properties
                                            (GObjectClass *cclass,
                                             guint *n_properties);

Object Hierarchy


  GObject
   +----GtkObject
         +----GtkWidget
               +----GtkContainer

Properties


  "border-width"         guint                : Read / Write
  "resize-mode"          GtkResizeMode        : Read / Write
  "child"                GtkWidget            : Write

Signal Prototypes


"add"       void        user_function      (GtkContainer *container,
                                            GtkWidget *widget,
                                            gpointer user_data);
"check-resize"
            void        user_function      (GtkContainer *container,
                                            gpointer user_data);
"remove"    void        user_function      (GtkContainer *container,
                                            GtkWidget *widget,
                                            gpointer user_data);
"set-focus-child"
            void        user_function      (GtkContainer *container,
                                            GtkWidget *widget,
                                            gpointer user_data);

Description

Details

struct GtkContainer

struct GtkContainer;

GTK_IS_RESIZE_CONTAINER()

#define GTK_IS_RESIZE_CONTAINER(widget) (GTK_IS_CONTAINER (widget) && ((GtkContainer*) (widget))->resize_mode != GTK_RESIZE_PARENT)

widget : 

GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID()

#define     GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID(object, property_id, pspec)

object : 
property_id : 
pspec : 

gtk_container_border_width

#define	gtk_container_border_width		gtk_container_set_border_width

Warning

gtk_container_border_width is deprecated and should not be used in newly-written code.

Does the same as gtk_container_get_border_width().

gtk_container_add ()

void        gtk_container_add               (GtkContainer *container,
                                             GtkWidget *widget);

Adds widget to container. Typically used for simple containers such as GtkWindow, GtkFrame, or GtkButton; for more complicated layout containers such as GtkBox or GtkTable, this function will pick default packing parameters that may not be correct. So consider functions such as gtk_box_pack_start() and gtk_table_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.

container : a GtkContainer
widget : a widget to be placed inside container

gtk_container_remove ()

void        gtk_container_remove            (GtkContainer *container,
                                             GtkWidget *widget);

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().

container : a GtkContainer
widget : a current child of container

gtk_container_add_with_properties ()

void        gtk_container_add_with_properties
                                            (GtkContainer *container,
                                             GtkWidget *widget,
                                             const gchar *first_prop_name,
                                             ...);

container : 
widget : 
first_prop_name : 
... : 

gtk_container_get_resize_mode ()

GtkResizeMode gtk_container_get_resize_mode (GtkContainer *container);

Returns the resize mode for the container. See gtk_container_set_resize_mode().

container : a GtkContainer
Returns : the current resize mode

gtk_container_set_resize_mode ()

void        gtk_container_set_resize_mode   (GtkContainer *container,
                                             GtkResizeMode 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.

container : a GtkContainer.
resize_mode : the new resize mode.

gtk_container_check_resize ()

void        gtk_container_check_resize      (GtkContainer *container);

container : 

gtk_container_foreach ()

void        gtk_container_foreach           (GtkContainer *container,
                                             GtkCallback callback,
                                             gpointer callback_data);

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().

container : a GtkContainer
callback : a callback
callback_data : callback user data

gtk_container_foreach_full ()

void        gtk_container_foreach_full      (GtkContainer *container,
                                             GtkCallback callback,
                                             GtkCallbackMarshal marshal,
                                             gpointer callback_data,
                                             GtkDestroyNotify notify);

Warning

gtk_container_foreach_full is deprecated and should not be used in newly-written code.

container : 
callback : 
marshal : 
callback_data : 
notify : 

gtk_container_children

#define gtk_container_children gtk_container_get_children

Warning

gtk_container_children is deprecated and should not be used in newly-written code.

Does the same as gtk_container_get_children().

Returns : 

gtk_container_get_children ()

GList*      gtk_container_get_children      (GtkContainer *container);

Returns the the container's non-internal children. See gtk_container_forall() for details on what constitutes an "internal" child.

container : a GtkContainer.
Returns : a newly-allocated list of the container's non-internal children.

gtk_container_set_reallocate_redraws ()

void        gtk_container_set_reallocate_redraws
                                            (GtkContainer *container,
                                             gboolean needs_redraws);

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.

container : a GtkContainer.
needs_redraws : the new value for the container's reallocate_redraws flag.

gtk_container_set_focus_child ()

void        gtk_container_set_focus_child   (GtkContainer *container,
                                             GtkWidget *child);

container : 
child : 

gtk_container_get_focus_vadjustment ()

GtkAdjustment* gtk_container_get_focus_vadjustment
                                            (GtkContainer *container);

Retrieves the vertical focus adjustment for the container. See gtk_container_set_focus_vadjustment().

container : a GtkContainer
Returns : the vertical focus adjustment, or NULL if none has been set.

gtk_container_set_focus_vadjustment ()

void        gtk_container_set_focus_vadjustment
                                            (GtkContainer *container,
                                             GtkAdjustment *adjustment);

container : 
adjustment : 

gtk_container_get_focus_hadjustment ()

GtkAdjustment* gtk_container_get_focus_hadjustment
                                            (GtkContainer *container);

Retrieves the horizontal focus adjustment for the container. See gtk_container_set_focus_hadjustment().

container : a GtkContainer
Returns : the horizontal focus adjustment, or NULL if none has been set.

gtk_container_set_focus_hadjustment ()

void        gtk_container_set_focus_hadjustment
                                            (GtkContainer *container,
                                             GtkAdjustment *adjustment);

container : 
adjustment : 

gtk_container_resize_children ()

void        gtk_container_resize_children   (GtkContainer *container);

container : 

gtk_container_child_type ()

GtkType     gtk_container_child_type        (GtkContainer *container);

Returns the type of the children supported by the container.

Note that this may return GTK_TYPE_NONE to indicate that no more children can be added, e.g. for a GtkPaned which already has two children.

container : a GtkContainer.
Returns : a GtkType.

gtk_container_child_get ()

void        gtk_container_child_get         (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_prop_name,
                                             ...);

container : 
child : 
first_prop_name : 
... : 

gtk_container_child_set ()

void        gtk_container_child_set         (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_prop_name,
                                             ...);

container : 
child : 
first_prop_name : 
... : 

gtk_container_child_get_property ()

void        gtk_container_child_get_property
                                            (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *property_name,
                                             GValue *value);

container : 
child : 
property_name : 
value : 

gtk_container_child_set_property ()

void        gtk_container_child_set_property
                                            (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *property_name,
                                             const GValue *value);

container : 
child : 
property_name : 
value : 

gtk_container_child_get_valist ()

void        gtk_container_child_get_valist  (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_property_name,
                                             va_list var_args);

container : 
child : 
first_property_name : 
var_args : 

gtk_container_child_set_valist ()

void        gtk_container_child_set_valist  (GtkContainer *container,
                                             GtkWidget *child,
                                             const gchar *first_property_name,
                                             va_list var_args);

container : 
child : 
first_property_name : 
var_args : 

gtk_container_forall ()

void        gtk_container_forall            (GtkContainer *container,
                                             GtkCallback callback,
                                             gpointer callback_data);

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().

container : a GtkContainer
callback : a callback
callback_data : callback user data

gtk_container_get_border_width ()

guint       gtk_container_get_border_width  (GtkContainer *container);

Retrieves the border width of the container. See gtk_container_set_border_width().

container : a GtkContainer
Returns : the current border width

gtk_container_set_border_width ()

void        gtk_container_set_border_width  (GtkContainer *container,
                                             guint 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_usize() to give it a size, and place it on the side of the container as a spacer.

container : a GtkContainer
border_width : amount of blank space to leave outside the container. Valid values are in the range 0-65535 pixels.

gtk_container_propagate_expose ()

void        gtk_container_propagate_expose  (GtkContainer *container,
                                             GtkWidget *child,
                                             GdkEventExpose *event);

When a container receives an expose event, it must send synthetic expose events to all children that don't have their own GdkWindows. This function provides a convenient way of doing this. A container, when it receives an expose event, calls gtk_container_propagate_expose() once for each child, passing in the event the container received.

gtk_container_propagate_expose() takes care of deciding whether an expose event needs to be sent to the child, intersecting the event's area with the child area, and sending the event.

In most cases, a container can simply either simply inherit the ::expose implementation from GtkContainer, or, do some drawing and then chain to the ::expose implementation from GtkContainer.

container : a GtkContainer
child : a child of container
event : a expose event sent to container

gtk_container_get_focus_chain ()

gboolean    gtk_container_get_focus_chain   (GtkContainer *container,
                                             GList **focusable_widgets);

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.

container : a GtkContainer
focusable_widgets : location to store the focus chain of the container, or NULL. You should free this list using g_list_free() when you are done with it, however no additional reference count is added to the individual widgets in the focus chain.
Returns : TRUE if the focus chain of the container has been set explicitly.

gtk_container_set_focus_chain ()

void        gtk_container_set_focus_chain   (GtkContainer *container,
                                             GList *focusable_widgets);

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.

container : a GtkContainer.
focusable_widgets : the new focus chain.

gtk_container_unset_focus_chain ()

void        gtk_container_unset_focus_chain (GtkContainer *container);

Removes a focus chain explicitly set with gtk_container_set_focus_chain().

container : a GtkContainer.

gtk_container_class_find_child_property ()

GParamSpec* gtk_container_class_find_child_property
                                            (GObjectClass *cclass,
                                             const gchar *property_name);

Finds a child property of a container class by name.

cclass : a GtkContainerClass
property_name : the name of the child property to find
Returns : the GParamSpec of the child property or NULL if class has ho child property with that name.

gtk_container_class_install_child_property ()

void        gtk_container_class_install_child_property
                                            (GtkContainerClass *cclass,
                                             guint property_id,
                                             GParamSpec *pspec);

cclass : 
property_id : 
pspec : 

gtk_container_class_list_child_properties ()

GParamSpec** gtk_container_class_list_child_properties
                                            (GObjectClass *cclass,
                                             guint *n_properties);

Returns all child properties of a container class.

cclass : a GtkContainerClass
n_properties : location to return the number of child properties found
Returns : an newly allocated array of GParamSpec*. The array must be freed with g_free().

Properties

"border-width" (guint : Read / Write)

The width of the empty border outside the containers children.

"resize-mode" (GtkResizeMode : Read / Write)

Specify how resize events are handled

"child" (GtkWidget : Write)

Can be used to add a new child to the container.

Signals

The "add" signal

void        user_function                  (GtkContainer *container,
                                            GtkWidget *widget,
                                            gpointer user_data);

container :the object which received the signal.
widget : 
user_data :user data set when the signal handler was connected.

The "check-resize" signal

void        user_function                  (GtkContainer *container,
                                            gpointer user_data);

container :the object which received the signal.
user_data :user data set when the signal handler was connected.

The "remove" signal

void        user_function                  (GtkContainer *container,
                                            GtkWidget *widget,
                                            gpointer user_data);

container :the object which received the signal.
widget : 
user_data :user data set when the signal handler was connected.

The "set-focus-child" signal

void        user_function                  (GtkContainer *container,
                                            GtkWidget *widget,
                                            gpointer user_data);

container :the object which received the signal.
widget : 
user_data :user data set when the signal handler was connected.



<<< Previous PageHomeUpNext Page >>>
GtkButtonBoxGtkEditable