GtkToolItem: GTK+ 3 Reference Manual

## GtkToolItem GtkToolItem — The base class of widgets that can be added to GtkToolShell |

## Functions

GtkToolItem * | gtk_tool_item_new ()
void | gtk_tool_item_set_homogeneous ()
gboolean | gtk_tool_item_get_homogeneous ()
void | gtk_tool_item_set_expand ()
gboolean | gtk_tool_item_get_expand ()
void | gtk_tool_item_set_tooltip_text ()
void | gtk_tool_item_set_tooltip_markup ()
void | gtk_tool_item_set_use_drag_window ()
gboolean | gtk_tool_item_get_use_drag_window ()
void | gtk_tool_item_set_visible_horizontal ()
gboolean | gtk_tool_item_get_visible_horizontal ()
void | gtk_tool_item_set_visible_vertical ()
gboolean | gtk_tool_item_get_visible_vertical ()
void | gtk_tool_item_set_is_important ()
gboolean | gtk_tool_item_get_is_important ()
PangoEllipsizeMode | gtk_tool_item_get_ellipsize_mode ()
GtkIconSize | gtk_tool_item_get_icon_size ()
GtkOrientation | gtk_tool_item_get_orientation ()
GtkToolbarStyle | gtk_tool_item_get_toolbar_style ()
GtkReliefStyle | gtk_tool_item_get_relief_style ()
gfloat | gtk_tool_item_get_text_alignment ()
GtkOrientation | gtk_tool_item_get_text_orientation ()
GtkWidget * | gtk_tool_item_retrieve_proxy_menu_item ()
GtkWidget * | gtk_tool_item_get_proxy_menu_item ()
void | gtk_tool_item_set_proxy_menu_item ()
void | gtk_tool_item_rebuild_menu ()
void | gtk_tool_item_toolbar_reconfigured ()
GtkSizeGroup * | gtk_tool_item_get_text_size_group ()

## Properties

gboolean | is-important | Read / Write
gboolean | visible-horizontal | Read / Write
gboolean | visible-vertical | Read / Write

## Signals

gboolean | create-menu-proxy | Run Last
void | toolbar-reconfigured | Run Last

## Types and Values

struct | GtkToolItem
struct | GtkToolItemClass

## Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GtkWidget
                ╰── GtkContainer
                    ╰── GtkBin
                        ╰── GtkToolItem
                            ├── GtkToolButton
                            ╰── GtkSeparatorToolItem

## Implemented Interfaces

GtkToolItem implements AtkImplementorIface, GtkBuildable and GtkActivatable.

## Includes

    #include <gtk/gtk.h>

## Description

GtkToolItems are widgets that can appear on a toolbar. To create a toolbar item that contain something else than a button, use `gtk_tool_item_new()`. Use `gtk_container_add()` to add a child widget to the tool item.

For toolbar items that contain buttons, see the GtkToolButton, GtkToggleToolButton and GtkRadioToolButton classes.

See the GtkToolbar class for a description of the toolbar widget, and GtkToolShell for a description of the tool shell interface.

## Functions

### gtk_tool_item_new ()

    GtkToolItem *
    gtk_tool_item_new (void);

Creates a new GtkToolItem

#### Returns

the new GtkToolItem

Since: 2.4

### gtk_tool_item_set_homogeneous ()

    void
    gtk_tool_item_set_homogeneous (GtkToolItem *tool_item,
                                   gboolean homogeneous);

Sets whether `tool_item` is to be allocated the same size as other homogeneous items. The effect is that all homogeneous items will have the same width as the widest of the items.

#### Parameters

tool_item | a GtkToolItem |
homogeneous | whether `tool_item` is the same size as other homogeneous items |

Since: 2.4

### gtk_tool_item_get_homogeneous ()

    gboolean
    gtk_tool_item_get_homogeneous (GtkToolItem *tool_item);

Returns whether `tool_item` is the same size as other homogeneous items. See `gtk_tool_item_set_homogeneous()`.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

`TRUE` if the item is the same size as other homogeneous items.

Since: 2.4

### gtk_tool_item_set_expand ()

    void
    gtk_tool_item_set_expand (GtkToolItem *tool_item,
                              gboolean expand);

Sets whether `tool_item` is allocated extra space when there is more room on the toolbar then needed for the items. The effect is that the item gets bigger when the toolbar gets bigger and smaller when the toolbar gets smaller.

#### Parameters

tool_item | a GtkToolItem |
expand | Whether `tool_item` is allocated extra space |

Since: 2.4

### gtk_tool_item_get_expand ()

    gboolean
    gtk_tool_item_get_expand (GtkToolItem *tool_item);

Returns whether `tool_item` is allocated extra space. See `gtk_tool_item_set_expand()`.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

`TRUE` if `tool_item` is allocated extra space.

Since: 2.4

### gtk_tool_item_set_tooltip_text ()

    void
    gtk_tool_item_set_tooltip_text (GtkToolItem *tool_item,
                                    const gchar *text);

Sets the text to be displayed as tooltip on the item. See `gtk_widget_set_tooltip_text()`.

#### Parameters

tool_item | a GtkToolItem |
text | text to be used as tooltip for `tool_item` |

Since: 2.12

### gtk_tool_item_set_tooltip_markup ()

    void
    gtk_tool_item_set_tooltip_markup (GtkToolItem *tool_item,
                                      const gchar *markup);

Sets the markup text to be displayed as tooltip on the item. See `gtk_widget_set_tooltip_markup()`.

#### Parameters

tool_item | a GtkToolItem |
markup | markup text to be used as tooltip for `tool_item` |

Since: 2.12

### gtk_tool_item_set_use_drag_window ()

    void
    gtk_tool_item_set_use_drag_window (GtkToolItem *tool_item,
                                       gboolean use_drag_window);

Sets whether `tool_item` has a drag window. When `TRUE` the toolitem can be used as a drag source through `gtk_drag_source_set()`. When `tool_item` has a drag window it will intercept all events, even those that would otherwise be sent to a child of `tool_item` .

#### Parameters

tool_item | a GtkToolItem |
use_drag_window | Whether `tool_item` has a drag window. |

Since: 2.4

### gtk_tool_item_get_use_drag_window ()

    gboolean
    gtk_tool_item_get_use_drag_window (GtkToolItem *tool_item);

Returns whether `tool_item` has a drag window. See `gtk_tool_item_set_use_drag_window()`.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

`TRUE` if `tool_item` uses a drag window.

Since: 2.4

### gtk_tool_item_set_visible_horizontal ()

    void
    gtk_tool_item_set_visible_horizontal (GtkToolItem *tool_item,
                                          gboolean visible_horizontal);

Sets whether `tool_item` is visible when the toolbar is docked horizontally.

#### Parameters

tool_item | a GtkToolItem |
visible_horizontal | Whether `tool_item` is visible when in horizontal mode |

Since: 2.4

### gtk_tool_item_get_visible_horizontal ()

    gboolean
    gtk_tool_item_get_visible_horizontal (GtkToolItem *tool_item);

Returns whether the `tool_item` is visible on toolbars that are docked horizontally.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

`TRUE` if `tool_item` is visible on toolbars that are docked horizontally.

Since: 2.4

### gtk_tool_item_set_visible_vertical ()

    void
    gtk_tool_item_set_visible_vertical (GtkToolItem *tool_item,
                                        gboolean visible_vertical);

Sets whether `tool_item` is visible when the toolbar is docked vertically. Some tool items, such as text entries, are too wide to be useful on a vertically docked toolbar. If `visible_vertical` is `FALSE` `tool_item` will not appear on toolbars that are docked vertically.

#### Parameters

tool_item | a GtkToolItem |
visible_vertical | whether `tool_item` is visible when the toolbar is in vertical mode |

Since: 2.4

### gtk_tool_item_get_visible_vertical ()

    gboolean
    gtk_tool_item_get_visible_vertical (GtkToolItem *tool_item);

Returns whether `tool_item` is visible when the toolbar is docked vertically. See `gtk_tool_item_set_visible_vertical()`.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

Whether `tool_item` is visible when the toolbar is docked vertically

Since: 2.4

### gtk_tool_item_set_is_important ()

    void
    gtk_tool_item_set_is_important (GtkToolItem *tool_item,
                                    gboolean is_important);

Sets whether `tool_item` should be considered important. The GtkToolButton class uses this property to determine whether to show or hide its label when the toolbar style is `GTK_TOOLBAR_BOTH_HORIZ`. The result is that only tool buttons with the “is_important” property set have labels, an effect known as “priority text”

#### Parameters

tool_item | a GtkToolItem |
is_important | whether the tool item should be considered important |

Since: 2.4

### gtk_tool_item_get_is_important ()

    gboolean
    gtk_tool_item_get_is_important (GtkToolItem *tool_item);

Returns whether `tool_item` is considered important. See `gtk_tool_item_set_is_important()`

#### Parameters

tool_item | a GtkToolItem |

#### Returns

`TRUE` if `tool_item` is considered important.

Since: 2.4

### gtk_tool_item_get_ellipsize_mode ()

    PangoEllipsizeMode
    gtk_tool_item_get_ellipsize_mode (GtkToolItem *tool_item);

Returns the ellipsize mode used for `tool_item` . Custom subclasses of GtkToolItem should call this function to find out how text should be ellipsized.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

a PangoEllipsizeMode indicating how text in `tool_item` should be ellipsized.

Since: 2.20

### gtk_tool_item_get_icon_size ()

    GtkIconSize
    gtk_tool_item_get_icon_size (GtkToolItem *tool_item);

Returns the icon size used for `tool_item` . Custom subclasses of GtkToolItem should call this function to find out what size icons they should use.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

a GtkIconSize indicating the icon size used for `tool_item` .

[type int]

Since: 2.4

### gtk_tool_item_get_orientation ()

    GtkOrientation
    gtk_tool_item_get_orientation (GtkToolItem *tool_item);

Returns the orientation used for `tool_item` . Custom subclasses of GtkToolItem should call this function to find out what size icons they should use.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

a GtkOrientation indicating the orientation used for `tool_item`

Since: 2.4

### gtk_tool_item_get_toolbar_style ()

    GtkToolbarStyle
    gtk_tool_item_get_toolbar_style (GtkToolItem *tool_item);

Returns the toolbar style used for `tool_item` . Custom subclasses of GtkToolItem should call this function in the handler of the GtkToolItem::toolbar_reconfigured signal to find out in what style the toolbar is displayed and change themselves accordingly

Possibilities are:

- `GTK_TOOLBAR_BOTH`, meaning the tool item should show both an icon and a label, stacked vertically

- `GTK_TOOLBAR_ICONS`, meaning the toolbar shows only icons

- `GTK_TOOLBAR_TEXT`, meaning the tool item should only show text

- `GTK_TOOLBAR_BOTH_HORIZ`, meaning the tool item should show both an icon and a label, arranged horizontally

#### Parameters

tool_item | a GtkToolItem |

#### Returns

A GtkToolbarStyle indicating the toolbar style used for `tool_item` .

Since: 2.4

### gtk_tool_item_get_relief_style ()

    GtkReliefStyle
    gtk_tool_item_get_relief_style (GtkToolItem *tool_item);

Returns the relief style of `tool_item` . See `gtk_button_set_relief()`. Custom subclasses of GtkToolItem should call this function in the handler of the “toolbar_reconfigured” signal to find out the relief style of buttons.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

a GtkReliefStyle indicating the relief style used for `tool_item` .

Since: 2.4

### gtk_tool_item_get_text_alignment ()

    gfloat
    gtk_tool_item_get_text_alignment (GtkToolItem *tool_item);

Returns the text alignment used for `tool_item` . Custom subclasses of GtkToolItem should call this function to find out how text should be aligned.

#### Parameters

tool_item | a GtkToolItem: |

#### Returns

a gfloat indicating the horizontal text alignment used for `tool_item`

Since: 2.20

### gtk_tool_item_get_text_orientation ()

    GtkOrientation
    gtk_tool_item_get_text_orientation (GtkToolItem *tool_item);

Returns the text orientation used for `tool_item` . Custom subclasses of GtkToolItem should call this function to find out how text should be orientated.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

a GtkOrientation indicating the text orientation used for `tool_item`

Since: 2.20

### gtk_tool_item_retrieve_proxy_menu_item ()

    GtkWidget *
    gtk_tool_item_retrieve_proxy_menu_item
                                   (GtkToolItem *tool_item);

Returns the GtkMenuItem that was last set by `gtk_tool_item_set_proxy_menu_item()`, ie. the GtkMenuItem that is going to appear in the overflow menu.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

The GtkMenuItem that is going to appear in the overflow menu for `tool_item` .

[transfer none]

Since: 2.4

### gtk_tool_item_get_proxy_menu_item ()

    GtkWidget *
    gtk_tool_item_get_proxy_menu_item (GtkToolItem *tool_item,
                                       const gchar *menu_item_id);

If `menu_item_id` matches the string passed to `gtk_tool_item_set_proxy_menu_item()` return the corresponding GtkMenuItem.

Custom subclasses of GtkToolItem should use this function to update their menu item when the GtkToolItem changes. That the `menu_item_ids` must match ensures that a GtkToolItem will not inadvertently change a menu item that they did not create.

#### Parameters

tool_item | a GtkToolItem |
menu_item_id | a string used to identify the menu item |

#### Returns

The GtkMenuItem passed to `gtk_tool_item_set_proxy_menu_item()`, if the `menu_item_ids` match.

[transfer none]

Since: 2.4

### gtk_tool_item_set_proxy_menu_item ()

    void
    gtk_tool_item_set_proxy_menu_item (GtkToolItem *tool_item,
                                       const gchar *menu_item_id,
                                       GtkWidget *menu_item);

Sets the GtkMenuItem used in the toolbar overflow menu. The `menu_item_id` is used to identify the caller of this function and should also be used with `gtk_tool_item_get_proxy_menu_item()`.

#### Parameters

tool_item | a GtkToolItem |
menu_item_id | a string used to identify `menu_item` |
menu_item | a GtkMenuItem to be used in the overflow menu |

Since: 2.4

### gtk_tool_item_rebuild_menu ()

    void
    gtk_tool_item_rebuild_menu (GtkToolItem *tool_item);

Calling this function signals to the toolbar that the overflow menu item for `tool_item` has changed. If the overflow menu is visible when this function it called, the menu will be rebuilt.

The function must be called when the tool item changes what it will do in response to the “create-menu-proxy” signal.

#### Parameters

tool_item | a GtkToolItem |

Since: 2.6

### gtk_tool_item_toolbar_reconfigured ()

    void
    gtk_tool_item_toolbar_reconfigured (GtkToolItem *tool_item);

Emits the signal “toolbar_reconfigured” on `tool_item` . GtkToolbar and other GtkToolShell implementations use this function to notify children, when some aspect of their configuration changes.

#### Parameters

tool_item | a GtkToolItem |

Since: 2.14

### gtk_tool_item_get_text_size_group ()

    GtkSizeGroup *
    gtk_tool_item_get_text_size_group (GtkToolItem *tool_item);

Returns the size group used for labels in `tool_item` . Custom subclasses of GtkToolItem should call this function and use the size group for labels.

#### Parameters

tool_item | a GtkToolItem |

#### Returns

a GtkSizeGroup.

[transfer none]

Since: 2.20

## Types and Values

### struct GtkToolItem

    struct GtkToolItem;

The GtkToolItem struct contains only private data. It should only be accessed through the functions described below.

### struct GtkToolItemClass

    struct GtkToolItemClass {
      GtkBinClass parent_class;

      /* signals */
      gboolean   (* create_menu_proxy)    (GtkToolItem *tool_item);
      void       (* toolbar_reconfigured) (GtkToolItem *tool_item);
    };

#### Members

`create_menu_proxy` () | Signal emitted when the toolbar needs information from tool_item about whether the item should appear in the toolbar overflow menu. |
`toolbar_reconfigured` () | Signal emitted when some property of the toolbar that the item is a child of changes. |

## Property Details

### The `“is-important”` property

      “is-important”             gboolean

Whether the toolbar item is considered important. When TRUE, toolbar buttons show text in GTK_TOOLBAR_BOTH_HORIZ mode.

Flags: Read / Write

Default value: FALSE

### The `“visible-horizontal”` property

      “visible-horizontal”       gboolean

Whether the toolbar item is visible when the toolbar is in a horizontal orientation.

Flags: Read / Write

Default value: TRUE

### The `“visible-vertical”` property

      “visible-vertical”         gboolean

Whether the toolbar item is visible when the toolbar is in a vertical orientation.

Flags: Read / Write

Default value: TRUE

## Signal Details

### The `“create-menu-proxy”` signal

    gboolean
    user_function (GtkToolItem *tool_item,
                   gpointer     user_data)

This signal is emitted when the toolbar needs information from `tool_item` about whether the item should appear in the toolbar overflow menu. In response the tool item should either

- call `gtk_tool_item_set_proxy_menu_item()` with a `NULL` pointer and return `TRUE` to indicate that the item should not appear in the overflow menu

- call `gtk_tool_item_set_proxy_menu_item()` with a new menu item and return `TRUE`, or

- return `FALSE` to indicate that the signal was not handled by the item. This means that the item will not appear in the overflow menu unless a later handler installs a menu item.

The toolbar may cache the result of this signal. When the tool item changes how it will respond to this signal it must call `gtk_tool_item_rebuild_menu()` to invalidate the cache and ensure that the toolbar rebuilds its overflow menu.

#### Parameters

tool_item | the object the signal was emitted on |
user_data | user data set when the signal handler was connected. |

#### Returns

`TRUE` if the signal was handled, `FALSE` if not

Flags: Run Last

### The `“toolbar-reconfigured”` signal

    void
    user_function (GtkToolItem *tool_item,
                   gpointer     user_data)

This signal is emitted when some property of the toolbar that the item is a child of changes. For custom subclasses of GtkToolItem, the default handler of this signal use the functions

- gtk_tool_shell_get_orientation()

- gtk_tool_shell_get_style()

- gtk_tool_shell_get_icon_size()

- gtk_tool_shell_get_relief_style() to find out what the toolbar should look like and change themselves accordingly.

#### Parameters

tool_item | the object the signal was emitted on |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

## See Also

GtkToolbar, GtkToolButton, GtkSeparatorToolItem