GtkComboBox

GtkComboBox — A widget used to choose from a list of items

Functions

GtkWidget * gtk_combo_box_new ()
GtkWidget * gtk_combo_box_new_with_entry ()
GtkWidget * gtk_combo_box_new_with_model ()
GtkWidget * gtk_combo_box_new_with_model_and_entry ()
GtkWidget * gtk_combo_box_new_with_area ()
GtkWidget * gtk_combo_box_new_with_area_and_entry ()
gint gtk_combo_box_get_wrap_width ()
void gtk_combo_box_set_wrap_width ()
gint gtk_combo_box_get_row_span_column ()
void gtk_combo_box_set_row_span_column ()
gint gtk_combo_box_get_column_span_column ()
void gtk_combo_box_set_column_span_column ()
gint gtk_combo_box_get_active ()
void gtk_combo_box_set_active ()
gboolean gtk_combo_box_get_active_iter ()
void gtk_combo_box_set_active_iter ()
gint gtk_combo_box_get_id_column ()
void gtk_combo_box_set_id_column ()
const gchar * gtk_combo_box_get_active_id ()
gboolean gtk_combo_box_set_active_id ()
GtkTreeModel * gtk_combo_box_get_model ()
void gtk_combo_box_set_model ()
void gtk_combo_box_popup_for_device ()
void gtk_combo_box_popup ()
void gtk_combo_box_popdown ()
AtkObject * gtk_combo_box_get_popup_accessible ()
GtkTreeViewRowSeparatorFunc gtk_combo_box_get_row_separator_func ()
void gtk_combo_box_set_row_separator_func ()
void gtk_combo_box_set_add_tearoffs ()
gboolean gtk_combo_box_get_add_tearoffs ()
void gtk_combo_box_set_title ()
const gchar * gtk_combo_box_get_title ()
void gtk_combo_box_set_focus_on_click ()
gboolean gtk_combo_box_get_focus_on_click ()
void gtk_combo_box_set_button_sensitivity ()
GtkSensitivityType gtk_combo_box_get_button_sensitivity ()
gboolean gtk_combo_box_get_has_entry ()
void gtk_combo_box_set_entry_text_column ()
gint gtk_combo_box_get_entry_text_column ()
void gtk_combo_box_set_popup_fixed_width ()
gboolean gtk_combo_box_get_popup_fixed_width ()

Properties

gint active Read / Write
gchar * active-id Read / Write
gboolean add-tearoffs Read / Write
GtkSensitivityType button-sensitivity Read / Write
GtkCellArea * cell-area Read / Write / Construct Only
gint column-span-column Read / Write
gint entry-text-column Read / Write
gboolean has-entry Read / Write / Construct Only
gboolean has-frame Read / Write
gint id-column Read / Write
GtkTreeModel * model Read / Write
gboolean popup-fixed-width Read / Write
gboolean popup-shown Read
gint row-span-column Read / Write
gchar * tearoff-title Read / Write
gint wrap-width Read / Write

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GtkWidget
            ╰── GtkContainer
                ╰── GtkBin
                    ╰── GtkComboBox
                        ├── GtkAppChooserButton
                        ╰── GtkComboBoxText

Implemented Interfaces

GtkComboBox implements AtkImplementorIface, GtkBuildable, GtkCellLayout and GtkCellEditable.

Includes

#include <gtk/gtk.h>

Description

A GtkComboBox is a widget that allows the user to choose from a list of valid choices. The GtkComboBox displays the selected choice. When activated, the GtkComboBox displays a popup which allows the user to make a new choice. The style in which the selected value is displayed, and the style of the popup is determined by the current theme. It may be similar to a Windows-style combo box.

The GtkComboBox uses the model-view pattern; the list of valid choices is specified in the form of a tree model, and the display of the choices can be adapted to the data in the model by using cell renderers, as you would in a tree view. This is possible since GtkComboBox implements the GtkCellLayout interface. The tree model holding the valid choices is not restricted to a flat list, it can be a real tree, and the popup will reflect the tree structure.

To allow the user to enter values not in the model, the “has-entry” property allows the GtkComboBox to contain a GtkEntry. This entry can be accessed by calling gtk_bin_get_child() on the combo box.

For a simple list of textual choices, the model-view API of GtkComboBox can be a bit overwhelming. In this case, GtkComboBoxText offers a simple alternative. Both GtkComboBox and GtkComboBoxText can contain an entry.

CSS nodes

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combobox
├── box.linked
│   ╰── button.combo
│       ╰── box
│           ├── cellview
│           ╰── arrow
╰── window.popup

A normal combobox contains a box with the .linked class, a button with the .combo class and inside those buttons, there are a cellview and an arrow.

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combobox
├── box.linked
│   ├── entry.combo
│   ╰── button.combo
│       ╰── box
│           ╰── arrow
╰── window.popup

A GtkComboBox with an entry has a single CSS node with name combobox. It contains a bx with the .linked class and that box contains an entry and a button, both with the .combo class added. The button also contains another node with name arrow.

Functions

gtk_combo_box_new ()

GtkWidget *
gtk_combo_box_new (void);

Creates a new empty GtkComboBox.

Returns

A new GtkComboBox.

Since: 2.4


gtk_combo_box_new_with_entry ()

GtkWidget *
gtk_combo_box_new_with_entry (void);

Creates a new empty GtkComboBox with an entry.

Returns

A new GtkComboBox.

Since: 2.24


gtk_combo_box_new_with_model ()

GtkWidget *
gtk_combo_box_new_with_model (GtkTreeModel *model);

Creates a new GtkComboBox with the model initialized to model .

Parameters

model

A GtkTreeModel.

 

Returns

A new GtkComboBox.

Since: 2.4


gtk_combo_box_new_with_model_and_entry ()

GtkWidget *
gtk_combo_box_new_with_model_and_entry
                               (GtkTreeModel *model);

Creates a new empty GtkComboBox with an entry and with the model initialized to model .

Parameters

model

A GtkTreeModel

 

Returns

A new GtkComboBox

Since: 2.24


gtk_combo_box_new_with_area ()

GtkWidget *
gtk_combo_box_new_with_area (GtkCellArea *area);

Creates a new empty GtkComboBox using area to layout cells.

Parameters

area

the GtkCellArea to use to layout cell renderers

 

Returns

A new GtkComboBox.


gtk_combo_box_new_with_area_and_entry ()

GtkWidget *
gtk_combo_box_new_with_area_and_entry (GtkCellArea *area);

Creates a new empty GtkComboBox with an entry.

The new combo box will use area to layout cells.

Parameters

area

the GtkCellArea to use to layout cell renderers

 

Returns

A new GtkComboBox.


gtk_combo_box_get_wrap_width ()

gint
gtk_combo_box_get_wrap_width (GtkComboBox *combo_box);

Returns the wrap width which is used to determine the number of columns for the popup menu. If the wrap width is larger than 1, the combo box is in table mode.

Parameters

combo_box

A GtkComboBox

 

Returns

the wrap width.

Since: 2.6


gtk_combo_box_set_wrap_width ()

void
gtk_combo_box_set_wrap_width (GtkComboBox *combo_box,
                              gint width);

Sets the wrap width of combo_box to be width . The wrap width is basically the preferred number of columns when you want the popup to be layed out in a table.

Parameters

combo_box

A GtkComboBox

 

width

Preferred number of columns

 

Since: 2.4


gtk_combo_box_get_row_span_column ()

gint
gtk_combo_box_get_row_span_column (GtkComboBox *combo_box);

Returns the column with row span information for combo_box .

Parameters

combo_box

A GtkComboBox

 

Returns

the row span column.

Since: 2.6


gtk_combo_box_set_row_span_column ()

void
gtk_combo_box_set_row_span_column (GtkComboBox *combo_box,
                                   gint row_span);

Sets the column with row span information for combo_box to be row_span . The row span column contains integers which indicate how many rows an item should span.

Parameters

combo_box

A GtkComboBox.

 

row_span

A column in the model passed during construction.

 

Since: 2.4


gtk_combo_box_get_column_span_column ()

gint
gtk_combo_box_get_column_span_column (GtkComboBox *combo_box);

Returns the column with column span information for combo_box .

Parameters

combo_box

A GtkComboBox

 

Returns

the column span column.

Since: 2.6


gtk_combo_box_set_column_span_column ()

void
gtk_combo_box_set_column_span_column (GtkComboBox *combo_box,
                                      gint column_span);

Sets the column with column span information for combo_box to be column_span . The column span column contains integers which indicate how many columns an item should span.

Parameters

combo_box

A GtkComboBox

 

column_span

A column in the model passed during construction

 

Since: 2.4


gtk_combo_box_get_active ()

gint
gtk_combo_box_get_active (GtkComboBox *combo_box);

Returns the index of the currently active item, or -1 if there’s no active item. If the model is a non-flat treemodel, and the active item is not an immediate child of the root of the tree, this function returns gtk_tree_path_get_indices (path)[0], where path is the GtkTreePath of the active item.

Parameters

combo_box

A GtkComboBox

 

Returns

An integer which is the index of the currently active item, or -1 if there’s no active item.

Since: 2.4


gtk_combo_box_set_active ()

void
gtk_combo_box_set_active (GtkComboBox *combo_box,
                          gint index_);

Sets the active item of combo_box to be the item at index .

Parameters

combo_box

A GtkComboBox

 

index_

An index in the model passed during construction, or -1 to have no active item

 

Since: 2.4


gtk_combo_box_get_active_iter ()

gboolean
gtk_combo_box_get_active_iter (GtkComboBox *combo_box,
                               GtkTreeIter *iter);

Sets iter to point to the current active item, if it exists.

Parameters

combo_box

A GtkComboBox

 

iter

The uninitialized GtkTreeIter.

[out]

Returns

TRUE, if iter was set

Since: 2.4


gtk_combo_box_set_active_iter ()

void
gtk_combo_box_set_active_iter (GtkComboBox *combo_box,
                               GtkTreeIter *iter);

Sets the current active item to be the one referenced by iter , or unsets the active item if iter is NULL.

Parameters

combo_box

A GtkComboBox

 

iter

The GtkTreeIter, or NULL.

[allow-none]

Since: 2.4


gtk_combo_box_get_id_column ()

gint
gtk_combo_box_get_id_column (GtkComboBox *combo_box);

Returns the column which combo_box is using to get string IDs for values from.

Parameters

combo_box

A GtkComboBox

 

Returns

A column in the data source model of combo_box .

Since: 3.0


gtk_combo_box_set_id_column ()

void
gtk_combo_box_set_id_column (GtkComboBox *combo_box,
                             gint id_column);

Sets the model column which combo_box should use to get string IDs for values from. The column id_column in the model of combo_box must be of type G_TYPE_STRING.

Parameters

combo_box

A GtkComboBox

 

id_column

A column in model to get string IDs for values from

 

Since: 3.0


gtk_combo_box_get_active_id ()

const gchar *
gtk_combo_box_get_active_id (GtkComboBox *combo_box);

Returns the ID of the active row of combo_box . This value is taken from the active row and the column specified by the “id-column” property of combo_box (see gtk_combo_box_set_id_column()).

The returned value is an interned string which means that you can compare the pointer by value to other interned strings and that you must not free it.

If the “id-column” property of combo_box is not set, or if no row is active, or if the active row has a NULL ID value, then NULL is returned.

Parameters

combo_box

a GtkComboBox

 

Returns

the ID of the active row, or NULL.

[nullable]

Since: 3.0


gtk_combo_box_set_active_id ()

gboolean
gtk_combo_box_set_active_id (GtkComboBox *combo_box,
                             const gchar *active_id);

Changes the active row of combo_box to the one that has an ID equal to active_id , or unsets the active row if active_id is NULL. Rows having a NULL ID string cannot be made active by this function.

If the “id-column” property of combo_box is unset or if no row has the given ID then the function does nothing and returns FALSE.

Parameters

combo_box

a GtkComboBox

 

active_id

the ID of the row to select, or NULL.

[allow-none]

Returns

TRUE if a row with a matching ID was found. If a NULL active_id was given to unset the active row, the function always returns TRUE.

Since: 3.0


gtk_combo_box_get_model ()

GtkTreeModel *
gtk_combo_box_get_model (GtkComboBox *combo_box);

Returns the GtkTreeModel which is acting as data source for combo_box .

Parameters

combo_box

A GtkComboBox

 

Returns

A GtkTreeModel which was passed during construction.

[transfer none]

Since: 2.4


gtk_combo_box_set_model ()

void
gtk_combo_box_set_model (GtkComboBox *combo_box,
                         GtkTreeModel *model);

Sets the model used by combo_box to be model . Will unset a previously set model (if applicable). If model is NULL, then it will unset the model.

Note that this function does not clear the cell renderers, you have to call gtk_cell_layout_clear() yourself if you need to set up different cell renderers for the new model.

Parameters

combo_box

A GtkComboBox

 

model

A GtkTreeModel.

[allow-none]

Since: 2.4


gtk_combo_box_popup_for_device ()

void
gtk_combo_box_popup_for_device (GtkComboBox *combo_box,
                                GdkDevice *device);

Pops up the menu or dropdown list of combo_box , the popup window will be grabbed so only device and its associated pointer/keyboard are the only GdkDevices able to send events to it.

Parameters

combo_box

a GtkComboBox

 

device

a GdkDevice

 

Since: 3.0


gtk_combo_box_popup ()

void
gtk_combo_box_popup (GtkComboBox *combo_box);

Pops up the menu or dropdown list of combo_box .

This function is mostly intended for use by accessibility technologies; applications should have little use for it.

Parameters

combo_box

a GtkComboBox

 

Since: 2.4


gtk_combo_box_popdown ()

void
gtk_combo_box_popdown (GtkComboBox *combo_box);

Hides the menu or dropdown list of combo_box .

This function is mostly intended for use by accessibility technologies; applications should have little use for it.

Parameters

combo_box

a GtkComboBox

 

Since: 2.4


gtk_combo_box_get_popup_accessible ()

AtkObject *
gtk_combo_box_get_popup_accessible (GtkComboBox *combo_box);

Gets the accessible object corresponding to the combo box’s popup.

This function is mostly intended for use by accessibility technologies; applications should have little use for it.

Parameters

combo_box

a GtkComboBox

 

Returns

the accessible object corresponding to the combo box’s popup.

[transfer none]

Since: 2.6


gtk_combo_box_get_row_separator_func ()

GtkTreeViewRowSeparatorFunc
gtk_combo_box_get_row_separator_func (GtkComboBox *combo_box);

Returns the current row separator function.

[skip]

Parameters

combo_box

a GtkComboBox

 

Returns

the current row separator function.

Since: 2.6


gtk_combo_box_set_row_separator_func ()

void
gtk_combo_box_set_row_separator_func (GtkComboBox *combo_box,
                                      GtkTreeViewRowSeparatorFunc func,
                                      gpointer data,
                                      GDestroyNotify destroy);

Sets the row separator function, which is used to determine whether a row should be drawn as a separator. If the row separator function is NULL, no separators are drawn. This is the default value.

Parameters

combo_box

a GtkComboBox

 

func

a GtkTreeViewRowSeparatorFunc

 

data

user data to pass to func , or NULL.

[allow-none]

destroy

destroy notifier for data , or NULL.

[allow-none]

Since: 2.6


gtk_combo_box_set_add_tearoffs ()

void
gtk_combo_box_set_add_tearoffs (GtkComboBox *combo_box,
                                gboolean add_tearoffs);

gtk_combo_box_set_add_tearoffs has been deprecated since version 3.10 and should not be used in newly-written code.

Sets whether the popup menu should have a tearoff menu item.

Parameters

combo_box

a GtkComboBox

 

add_tearoffs

TRUE to add tearoff menu items

 

Since: 2.6


gtk_combo_box_get_add_tearoffs ()

gboolean
gtk_combo_box_get_add_tearoffs (GtkComboBox *combo_box);

gtk_combo_box_get_add_tearoffs has been deprecated since version 3.10 and should not be used in newly-written code.

Gets the current value of the :add-tearoffs property.

Parameters

combo_box

a GtkComboBox

 

Returns

the current value of the :add-tearoffs property.


gtk_combo_box_set_title ()

void
gtk_combo_box_set_title (GtkComboBox *combo_box,
                         const gchar *title);

gtk_combo_box_set_title has been deprecated since version 3.10 and should not be used in newly-written code.

Sets the menu’s title in tearoff mode.

Parameters

combo_box

a GtkComboBox

 

title

a title for the menu in tearoff mode

 

Since: 2.10


gtk_combo_box_get_title ()

const gchar *
gtk_combo_box_get_title (GtkComboBox *combo_box);

gtk_combo_box_get_title has been deprecated since version 3.10 and should not be used in newly-written code.

Gets the current title of the menu in tearoff mode. See gtk_combo_box_set_add_tearoffs().

Parameters

combo_box

a GtkComboBox

 

Returns

the menu’s title in tearoff mode. This is an internal copy of the string which must not be freed.

Since: 2.10


gtk_combo_box_set_focus_on_click ()

void
gtk_combo_box_set_focus_on_click (GtkComboBox *combo,
                                  gboolean focus_on_click);

gtk_combo_box_set_focus_on_click has been deprecated since version 3.20 and should not be used in newly-written code.

Use gtk_widget_set_focus_on_click() instead

Sets whether the combo box will grab focus when it is clicked with the mouse. Making mouse clicks not grab focus is useful in places like toolbars where you don’t want the keyboard focus removed from the main area of the application.

Parameters

combo

a GtkComboBox

 

focus_on_click

whether the combo box grabs focus when clicked with the mouse

 

Since: 2.6


gtk_combo_box_get_focus_on_click ()

gboolean
gtk_combo_box_get_focus_on_click (GtkComboBox *combo);

gtk_combo_box_get_focus_on_click has been deprecated since version 3.20 and should not be used in newly-written code.

Use gtk_widget_get_focus_on_click() instead

Returns whether the combo box grabs focus when it is clicked with the mouse. See gtk_combo_box_set_focus_on_click().

Parameters

combo

a GtkComboBox

 

Returns

TRUE if the combo box grabs focus when it is clicked with the mouse.

Since: 2.6


gtk_combo_box_set_button_sensitivity ()

void
gtk_combo_box_set_button_sensitivity (GtkComboBox *combo_box,
                                      GtkSensitivityType sensitivity);

Sets whether the dropdown button of the combo box should be always sensitive (GTK_SENSITIVITY_ON), never sensitive (GTK_SENSITIVITY_OFF) or only if there is at least one item to display (GTK_SENSITIVITY_AUTO).

Parameters

combo_box

a GtkComboBox

 

sensitivity

specify the sensitivity of the dropdown button

 

Since: 2.14


gtk_combo_box_get_button_sensitivity ()

GtkSensitivityType
gtk_combo_box_get_button_sensitivity (GtkComboBox *combo_box);

Returns whether the combo box sets the dropdown button sensitive or not when there are no items in the model.

Parameters

combo_box

a GtkComboBox

 

Returns

GTK_SENSITIVITY_ON if the dropdown button is sensitive when the model is empty, GTK_SENSITIVITY_OFF if the button is always insensitive or GTK_SENSITIVITY_AUTO if it is only sensitive as long as the model has one item to be selected.

Since: 2.14


gtk_combo_box_get_has_entry ()

gboolean
gtk_combo_box_get_has_entry (GtkComboBox *combo_box);

Returns whether the combo box has an entry.

Parameters

combo_box

a GtkComboBox

 

Returns

whether there is an entry in combo_box .

Since: 2.24


gtk_combo_box_set_entry_text_column ()

void
gtk_combo_box_set_entry_text_column (GtkComboBox *combo_box,
                                     gint text_column);

Sets the model column which combo_box should use to get strings from to be text_column . The column text_column in the model of combo_box must be of type G_TYPE_STRING.

This is only relevant if combo_box has been created with “has-entry” as TRUE.

Parameters

combo_box

A GtkComboBox

 

text_column

A column in model to get the strings from for the internal entry

 

Since: 2.24


gtk_combo_box_get_entry_text_column ()

gint
gtk_combo_box_get_entry_text_column (GtkComboBox *combo_box);

Returns the column which combo_box is using to get the strings from to display in the internal entry.

Parameters

combo_box

A GtkComboBox.

 

Returns

A column in the data source model of combo_box .

Since: 2.24


gtk_combo_box_set_popup_fixed_width ()

void
gtk_combo_box_set_popup_fixed_width (GtkComboBox *combo_box,
                                     gboolean fixed);

Specifies whether the popup’s width should be a fixed width matching the allocated width of the combo box.

Parameters

combo_box

a GtkComboBox

 

fixed

whether to use a fixed popup width

 

Since: 3.0


gtk_combo_box_get_popup_fixed_width ()

gboolean
gtk_combo_box_get_popup_fixed_width (GtkComboBox *combo_box);

Gets whether the popup uses a fixed width matching the allocated width of the combo box.

Parameters

combo_box

a GtkComboBox

 

Returns

TRUE if the popup uses a fixed width

Since: 3.0

Types and Values

struct GtkComboBox

struct GtkComboBox;

struct GtkComboBoxClass

struct GtkComboBoxClass {
  GtkBinClass parent_class;


  /* signals */
  void     (* changed)           (GtkComboBox *combo_box);
  gchar   *(* format_entry_text) (GtkComboBox *combo_box,
				  const gchar *path);
};

Members

changed ()

Signal is emitted when the active item is changed.

 

format_entry_text ()

Signal which allows you to change how the text displayed in a combo box’s entry is displayed.

 

Property Details

The “active” property

  “active”                   gint

The item which is currently active. If the model is a non-flat treemodel, and the active item is not an immediate child of the root of the tree, this property has the value gtk_tree_path_get_indices (path)[0], where path is the GtkTreePath of the active item.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since: 2.4


The “active-id” property

  “active-id”                gchar *

The value of the ID column of the active row.

Flags: Read / Write

Default value: NULL

Since: 3.0


The “add-tearoffs” property

  “add-tearoffs”             gboolean

The add-tearoffs property controls whether generated menus have tearoff menu items.

Note that this only affects menu style combo boxes.

GtkComboBox:add-tearoffs has been deprecated since version 3.10 and should not be used in newly-written code.

Flags: Read / Write

Default value: FALSE

Since: 2.6


The “button-sensitivity” property

  “button-sensitivity”       GtkSensitivityType

Whether the dropdown button is sensitive when the model is empty.

Flags: Read / Write

Default value: GTK_SENSITIVITY_AUTO

Since: 2.14


The “cell-area” property

  “cell-area”                GtkCellArea *

The GtkCellArea used to layout cell renderers for this combo box.

If no area is specified when creating the combo box with gtk_combo_box_new_with_area() a horizontally oriented GtkCellAreaBox will be used.

Flags: Read / Write / Construct Only

Since: 3.0


The “column-span-column” property

  “column-span-column”       gint

If this is set to a non-negative value, it must be the index of a column of type G_TYPE_INT in the model.

The values of that column are used to determine how many columns a value in the list will span.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since: 2.4


The “entry-text-column” property

  “entry-text-column”        gint

The column in the combo box's model to associate with strings from the entry if the combo was created with “has-entry” = TRUE.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since: 2.24


The “has-entry” property

  “has-entry”                gboolean

Whether the combo box has an entry.

Flags: Read / Write / Construct Only

Default value: FALSE

Since: 2.24


The “has-frame” property

  “has-frame”                gboolean

The has-frame property controls whether a frame is drawn around the entry.

Flags: Read / Write

Default value: TRUE

Since: 2.6


The “id-column” property

  “id-column”                gint

The column in the combo box's model that provides string IDs for the values in the model, if != -1.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since: 3.0


The “model” property

  “model”                    GtkTreeModel *

The model from which the combo box takes the values shown in the list.

Flags: Read / Write

Since: 2.4


The “popup-fixed-width” property

  “popup-fixed-width”        gboolean

Whether the popup's width should be a fixed width matching the allocated width of the combo box.

Flags: Read / Write

Default value: TRUE

Since: 3.0


The “popup-shown” property

  “popup-shown”              gboolean

Whether the combo boxes dropdown is popped up. Note that this property is mainly useful, because it allows you to connect to notify::popup-shown.

Flags: Read

Default value: FALSE

Since: 2.10


The “row-span-column” property

  “row-span-column”          gint

If this is set to a non-negative value, it must be the index of a column of type G_TYPE_INT in the model.

The values of that column are used to determine how many rows a value in the list will span. Therefore, the values in the model column pointed to by this property must be greater than zero and not larger than wrap-width.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since: 2.4


The “tearoff-title” property

  “tearoff-title”            gchar *

A title that may be displayed by the window manager when the popup is torn-off.

GtkComboBox:tearoff-title has been deprecated since version 3.10 and should not be used in newly-written code.

Flags: Read / Write

Default value: NULL

Since: 2.10


The “wrap-width” property

  “wrap-width”               gint

If wrap-width is set to a positive value, the list will be displayed in multiple columns, the number of columns is determined by wrap-width.

Flags: Read / Write

Allowed values: >= 0

Default value: 0

Since: 2.4

Style Property Details

The “appears-as-list” style property

  “appears-as-list”          gboolean

Whether dropdowns should look like lists rather than menus.

Flags: Read

Default value: FALSE


The “arrow-scaling” style property

  “arrow-scaling”            gfloat

Sets the amount of space used up by the combobox arrow, proportional to the font size.

GtkComboBox:arrow-scaling has been deprecated since version 3.20 and should not be used in newly-written code.

use the standard min-width/min-height CSS properties on the arrow node; the value of this style property is ignored.

Flags: Read

Allowed values: [0,2]

Default value: 1


The “arrow-size” style property

  “arrow-size”               gint

Sets the minimum size of the arrow in the combo box. Note that the arrow size is coupled to the font size, so in case a larger font is used, the arrow will be larger than set by arrow size.

GtkComboBox:arrow-size has been deprecated since version 3.20 and should not be used in newly-written code.

use the standard min-width/min-height CSS properties on the arrow node; the value of this style property is ignored.

Flags: Read

Allowed values: >= 0

Default value: 15

Since: 2.12


The “shadow-type” style property

  “shadow-type”              GtkShadowType

Which kind of shadow to draw around the combo box.

GtkComboBox:shadow-type has been deprecated since version 3.20 and should not be used in newly-written code.

use CSS styling to change the appearance of the combobox frame; the value of this style property is ignored.

Flags: Read

Default value: GTK_SHADOW_NONE

Since: 2.12

Signal Details

The “changed” signal

void
user_function (GtkComboBox *widget,
               gpointer     user_data)

The changed signal is emitted when the active item is changed. The can be due to the user selecting a different item from the list, or due to a call to gtk_combo_box_set_active_iter(). It will also be emitted while typing into the entry of a combo box with an entry.

Parameters

widget

the object which received the signal

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last

Since: 2.4


The “format-entry-text” signal

gchar*
user_function (GtkComboBox *combo,
               gchar       *path,
               gpointer     user_data)

For combo boxes that are created with an entry (See GtkComboBox:has-entry).

A signal which allows you to change how the text displayed in a combo box's entry is displayed.

Connect a signal handler which returns an allocated string representing path . That string will then be used to set the text in the combo box's entry. The default signal handler uses the text from the GtkComboBox::entry-text-column model column.

Here's an example signal handler which fetches data from the model and displays it in the entry.

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static gchar*
format_entry_text_callback (GtkComboBox *combo,
                            const gchar *path,
                            gpointer     user_data)
{
  GtkTreeIter iter;
  GtkTreeModel model;
  gdouble      value;

  model = gtk_combo_box_get_model (combo);

  gtk_tree_model_get_iter_from_string (model, &iter, path);
  gtk_tree_model_get (model, &iter,

                      THE_DOUBLE_VALUE_COLUMN, &value,
                      -1);

  return g_strdup_printf ("%g", value);
}

Parameters

combo

the object which received the signal

 

path

the GtkTreePath string from the combo box's current model to format text for

 

user_data

user data set when the signal handler was connected.

 

Returns

a newly allocated string representing path for the current GtkComboBox model.

[transfer full]

Flags: Run Last

Since: 3.4


The “move-active” signal

void
user_function (GtkComboBox  *widget,
               GtkScrollType scroll_type,
               gpointer      user_data)

The ::move-active signal is a keybinding signal which gets emitted to move the active selection.

Parameters

widget

the object that received the signal

 

scroll_type

a GtkScrollType

 

user_data

user data set when the signal handler was connected.

 

Flags: Action

Since: 2.12


The “popdown” signal

gboolean
user_function (GtkComboBox *button,
               gpointer     user_data)

The ::popdown signal is a keybinding signal which gets emitted to popdown the combo box list.

The default bindings for this signal are Alt+Up and Escape.

Parameters

button

the object which received the signal

 

user_data

user data set when the signal handler was connected.

 

Flags: Action

Since: 2.12


The “popup” signal

void
user_function (GtkComboBox *widget,
               gpointer     user_data)

The ::popup signal is a keybinding signal which gets emitted to popup the combo box list.

The default binding for this signal is Alt+Down.

Parameters

widget

the object that received the signal

 

user_data

user data set when the signal handler was connected.

 

Flags: Action

Since: 2.12