![]() |
![]() |
![]() |
GTK+ 3 Reference Manual | ![]() |
---|---|---|---|---|
Top | Description | Object Hierarchy | Implemented Interfaces | Properties | Style Properties | Signals |
#include <gtk/gtk.h> struct GtkComboBox; GtkWidget * gtk_combo_box_new (void
); GtkWidget * gtk_combo_box_new_with_entry (void
); GtkWidget * gtk_combo_box_new_with_model (GtkTreeModel *model
); GtkWidget * gtk_combo_box_new_with_model_and_entry (GtkTreeModel *model
); GtkWidget * gtk_combo_box_new_with_area (GtkCellArea *area
); GtkWidget * gtk_combo_box_new_with_area_and_entry (GtkCellArea *area
); gint gtk_combo_box_get_wrap_width (GtkComboBox *combo_box
); void gtk_combo_box_set_wrap_width (GtkComboBox *combo_box
,gint width
); gint gtk_combo_box_get_row_span_column (GtkComboBox *combo_box
); void gtk_combo_box_set_row_span_column (GtkComboBox *combo_box
,gint row_span
); gint gtk_combo_box_get_column_span_column (GtkComboBox *combo_box
); void gtk_combo_box_set_column_span_column (GtkComboBox *combo_box
,gint column_span
); gint gtk_combo_box_get_active (GtkComboBox *combo_box
); void gtk_combo_box_set_active (GtkComboBox *combo_box
,gint index_
); gboolean gtk_combo_box_get_active_iter (GtkComboBox *combo_box
,GtkTreeIter *iter
); void gtk_combo_box_set_active_iter (GtkComboBox *combo_box
,GtkTreeIter *iter
); gint gtk_combo_box_get_id_column (GtkComboBox *combo_box
); void gtk_combo_box_set_id_column (GtkComboBox *combo_box
,gint id_column
); const gchar * gtk_combo_box_get_active_id (GtkComboBox *combo_box
); void gtk_combo_box_set_active_id (GtkComboBox *combo_box
,const gchar *active_id
); GtkTreeModel * gtk_combo_box_get_model (GtkComboBox *combo_box
); void gtk_combo_box_set_model (GtkComboBox *combo_box
,GtkTreeModel *model
); void gtk_combo_box_popup_for_device (GtkComboBox *combo_box
,GdkDevice *device
); void gtk_combo_box_popup (GtkComboBox *combo_box
); void gtk_combo_box_popdown (GtkComboBox *combo_box
); AtkObject * gtk_combo_box_get_popup_accessible (GtkComboBox *combo_box
); GtkTreeViewRowSeparatorFunc gtk_combo_box_get_row_separator_func (GtkComboBox *combo_box
); void gtk_combo_box_set_row_separator_func (GtkComboBox *combo_box
,GtkTreeViewRowSeparatorFunc func
,gpointer data
,GDestroyNotify destroy
); void gtk_combo_box_set_add_tearoffs (GtkComboBox *combo_box
,gboolean add_tearoffs
); gboolean gtk_combo_box_get_add_tearoffs (GtkComboBox *combo_box
); void gtk_combo_box_set_title (GtkComboBox *combo_box
,const gchar *title
); const gchar * gtk_combo_box_get_title (GtkComboBox *combo_box
); void gtk_combo_box_set_focus_on_click (GtkComboBox *combo
,gboolean focus_on_click
); gboolean gtk_combo_box_get_focus_on_click (GtkComboBox *combo
); void gtk_combo_box_set_button_sensitivity (GtkComboBox *combo_box
,GtkSensitivityType sensitivity
); GtkSensitivityType gtk_combo_box_get_button_sensitivity (GtkComboBox *combo_box
); gboolean gtk_combo_box_get_has_entry (GtkComboBox *combo_box
); void gtk_combo_box_set_entry_text_column (GtkComboBox *combo_box
,gint text_column
); gint gtk_combo_box_get_entry_text_column (GtkComboBox *combo_box
); void gtk_combo_box_set_popup_fixed_width (GtkComboBox *combo_box
,gboolean fixed
); gboolean gtk_combo_box_get_popup_fixed_width (GtkComboBox *combo_box
);
GObject +----GInitiallyUnowned +----GtkWidget +----GtkContainer +----GtkBin +----GtkComboBox +----GtkAppChooserButton +----GtkComboBoxText
GtkComboBox implements AtkImplementorIface, GtkBuildable, GtkCellLayout and GtkCellEditable.
"active" gint : Read / Write "active-id" gchar* : Read / Write "add-tearoffs" gboolean : Read / Write "button-sensitivity" GtkSensitivityType : Read / Write "cell-area" GtkCellArea* : Read / Write / Construct Only "column-span-column" gint : Read / Write "entry-text-column" gint : Read / Write "focus-on-click" gboolean : Read / Write "has-entry" gboolean : Read / Write / Construct Only "has-frame" gboolean : Read / Write "id-column" gint : Read / Write "model" GtkTreeModel* : Read / Write "popup-fixed-width" gboolean : Read / Write "popup-shown" gboolean : Read "row-span-column" gint : Read / Write "tearoff-title" gchar* : Read / Write "wrap-width" gint : Read / Write
"appears-as-list" gboolean : Read "arrow-scaling" gfloat : Read "arrow-size" gint : Read "shadow-type" GtkShadowType : Read
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.
GtkWidget * gtk_combo_box_new (void
);
Creates a new empty GtkComboBox.
Returns : |
A new GtkComboBox. |
Since 2.4
GtkWidget * gtk_combo_box_new_with_entry (void
);
Creates a new empty GtkComboBox with an entry.
Returns : |
A new GtkComboBox. |
GtkWidget * gtk_combo_box_new_with_model (GtkTreeModel *model
);
Creates a new GtkComboBox with the model initialized to model
.
|
A GtkTreeModel. |
Returns : |
A new GtkComboBox. |
Since 2.4
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
.
|
A GtkTreeModel |
Returns : |
A new GtkComboBox |
GtkWidget * gtk_combo_box_new_with_area (GtkCellArea *area
);
Creates a new empty GtkComboBox using area
to layout cells.
|
the GtkCellArea to use to layout cell renderers |
Returns : |
A new GtkComboBox. |
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.
|
the GtkCellArea to use to layout cell renderers |
Returns : |
A new GtkComboBox. |
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.
|
A GtkComboBox |
Returns : |
the wrap width. |
Since 2.6
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.
|
A GtkComboBox |
|
Preferred number of columns |
Since 2.4
gint gtk_combo_box_get_row_span_column (GtkComboBox *combo_box
);
Returns the column with row span information for combo_box
.
|
A GtkComboBox |
Returns : |
the row span column. |
Since 2.6
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.
|
A GtkComboBox. |
|
A column in the model passed during construction. |
Since 2.4
gint gtk_combo_box_get_column_span_column
(GtkComboBox *combo_box
);
Returns the column with column span information for combo_box
.
|
A GtkComboBox |
Returns : |
the column span column. |
Since 2.6
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.
|
A GtkComboBox |
|
A column in the model passed during construction |
Since 2.4
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.
|
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
void gtk_combo_box_set_active (GtkComboBox *combo_box
,gint index_
);
Sets the active item of combo_box
to be the item at index
.
|
A GtkComboBox |
|
An index in the model passed during construction, or -1 to have no active item |
Since 2.4
gboolean gtk_combo_box_get_active_iter (GtkComboBox *combo_box
,GtkTreeIter *iter
);
Sets iter
to point to the current active item, if it exists.
|
A GtkComboBox |
|
The uninitialized GtkTreeIter. [out] |
Returns : |
TRUE , if iter was set |
Since 2.4
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
.
|
A GtkComboBox |
|
The GtkTreeIter, or NULL . [allow-none]
|
Since 2.4
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.
|
A GtkComboBox |
Returns : |
A column in the data source model of combo_box . |
Since 3.0
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
.
|
A GtkComboBox |
|
A column in model to get string IDs for values from |
Since 3.0
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
selected then NULL
is returned.
|
a GtkComboBox |
Returns : |
the ID of the active row, or NULL
|
Since 3.0
void 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 id
.
If the 'id-column' property of combo_box
is unset or if no row has
the given ID then nothing happens.
|
a GtkComboBox |
|
the ID of the row to select |
Since 3.0
GtkTreeModel * gtk_combo_box_get_model (GtkComboBox *combo_box
);
Returns the GtkTreeModel which is acting as data source for combo_box
.
|
A GtkComboBox |
Returns : |
A GtkTreeModel which was passed during construction. [transfer none] |
Since 2.4
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.
|
A GtkComboBox |
|
A GtkTreeModel. [allow-none] |
Since 2.4
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.
|
a GtkComboBox |
|
a GdkDevice |
Since 3.0
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.
|
a GtkComboBox |
Since 2.4
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.
|
a GtkComboBox |
Since 2.4
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.
|
a GtkComboBox |
Returns : |
the accessible object corresponding to the combo box's popup. [transfer none] |
Since 2.6
GtkTreeViewRowSeparatorFunc gtk_combo_box_get_row_separator_func
(GtkComboBox *combo_box
);
Returns the current row separator function.
|
a GtkComboBox |
Returns : |
the current row separator function. |
Since 2.6
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.
|
a GtkComboBox |
|
a GtkTreeViewRowSeparatorFunc |
|
user data to pass to func , or NULL . [allow-none]
|
|
destroy notifier for data , or NULL . [allow-none]
|
Since 2.6
void gtk_combo_box_set_add_tearoffs (GtkComboBox *combo_box
,gboolean add_tearoffs
);
Sets whether the popup menu should have a tearoff menu item.
|
a GtkComboBox |
|
TRUE to add tearoff menu items |
Since 2.6
gboolean gtk_combo_box_get_add_tearoffs (GtkComboBox *combo_box
);
Gets the current value of the :add-tearoffs property.
|
a GtkComboBox |
Returns : |
the current value of the :add-tearoffs property. |
void gtk_combo_box_set_title (GtkComboBox *combo_box
,const gchar *title
);
Sets the menu's title in tearoff mode.
|
a GtkComboBox |
|
a title for the menu in tearoff mode |
Since 2.10
const gchar * gtk_combo_box_get_title (GtkComboBox *combo_box
);
Gets the current title of the menu in tearoff mode. See
gtk_combo_box_set_add_tearoffs()
.
|
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
void gtk_combo_box_set_focus_on_click (GtkComboBox *combo
,gboolean focus_on_click
);
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.
|
a GtkComboBox |
|
whether the combo box grabs focus when clicked with the mouse |
Since 2.6
gboolean gtk_combo_box_get_focus_on_click (GtkComboBox *combo
);
Returns whether the combo box grabs focus when it is clicked
with the mouse. See gtk_combo_box_set_focus_on_click()
.
|
a GtkComboBox |
Returns : |
TRUE if the combo box grabs focus when it is
clicked with the mouse. |
Since 2.6
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
).
|
a GtkComboBox |
|
specify the sensitivity of the dropdown button |
Since 2.14
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.
|
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
gboolean gtk_combo_box_get_has_entry (GtkComboBox *combo_box
);
Returns whether the combo box has an entry.
|
a GtkComboBox |
Returns : |
whether there is an entry in combo_box . |
Since 2.24
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
.
|
A GtkComboBox |
|
A column in model to get the strings from for
the internal entry |
Since 2.24
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.
|
A GtkComboBox. |
Returns : |
A column in the data source model of combo_box . |
Since 2.24
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.
|
a GtkComboBox |
|
whether to use a fixed popup width |
Since 3.0
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.
|
a GtkComboBox |
Returns : |
TRUE if the popup uses a fixed width |
Since 3.0
"active"
property"active" gint : Read / Write
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.
Allowed values: >= G_MAXULONG
Default value: -1
Since 2.4
"active-id"
property"active-id" gchar* : Read / Write
The value of the ID column of the active row.
Default value: NULL
Since 3.0
"add-tearoffs"
property"add-tearoffs" gboolean : Read / Write
The add-tearoffs property controls whether generated menus have tearoff menu items.
Note that this only affects menu style combo boxes.
Default value: FALSE
Since 2.6
"button-sensitivity"
property"button-sensitivity" GtkSensitivityType : Read / Write
Whether the dropdown button is sensitive when the model is empty.
Default value: GTK_SENSITIVITY_AUTO
Since 2.14
"cell-area"
property"cell-area" GtkCellArea* : Read / Write / Construct Only
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.
Since 3.0
"column-span-column"
property"column-span-column" gint : Read / Write
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.
Allowed values: >= G_MAXULONG
Default value: -1
Since 2.4
"entry-text-column"
property"entry-text-column" gint : Read / Write
The column in the combo box's model to associate with strings from the entry
if the combo was created with "has-entry" = TRUE
.
Allowed values: >= G_MAXULONG
Default value: -1
Since 2.24
"focus-on-click"
property"focus-on-click" gboolean : Read / Write
Whether the combo box grabs focus when it is clicked with the mouse.
Default value: TRUE
"has-entry"
property"has-entry" gboolean : Read / Write / Construct Only
Whether the combo box has an entry.
Default value: FALSE
Since 2.24
"has-frame"
property"has-frame" gboolean : Read / Write
The has-frame property controls whether a frame is drawn around the entry.
Default value: TRUE
Since 2.6
"id-column"
property"id-column" gint : Read / Write
The column in the combo box's model that provides string IDs for the values in the model, if != -1.
Allowed values: >= G_MAXULONG
Default value: -1
Since 3.0
"model"
property"model" GtkTreeModel* : Read / Write
The model from which the combo box takes the values shown in the list.
Since 2.4
"popup-fixed-width"
property"popup-fixed-width" gboolean : Read / Write
Whether the popup's width should be a fixed width matching the allocated width of the combo box.
Default value: TRUE
Since 3.0
"popup-shown"
property"popup-shown" gboolean : Read
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.
Default value: FALSE
Since 2.10
"row-span-column"
property"row-span-column" gint : Read / Write
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.
Allowed values: >= G_MAXULONG
Default value: -1
Since 2.4
"tearoff-title"
property"tearoff-title" gchar* : Read / Write
A title that may be displayed by the window manager when the popup is torn-off.
Default value: NULL
Since 2.10
"wrap-width"
property"wrap-width" gint : Read / Write
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.
Allowed values: >= 0
Default value: 0
Since 2.4
"appears-as-list"
style property"appears-as-list" gboolean : Read
Whether dropdowns should look like lists rather than menus.
Default value: FALSE
"arrow-scaling"
style property"arrow-scaling" gfloat : Read
Sets the amount of space used up by the combobox arrow, proportional to the font size.
Allowed values: [0,2]
Default value: 1
Since 3.2
"arrow-size"
style property"arrow-size" gint : Read
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.
Allowed values: >= 0
Default value: 15
Since 2.12
"shadow-type"
style property"shadow-type" GtkShadowType : Read
Which kind of shadow to draw around the combo box.
Default value: GTK_SHADOW_NONE
Since 2.12
"changed"
signalvoid user_function (GtkComboBox *widget,
gpointer user_data) : Run Last
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.
|
the object which received the signal |
|
user data set when the signal handler was connected. |
Since 2.4
"move-active"
signalvoid user_function (GtkComboBox *widget,
GtkScrollType scroll_type,
gpointer user_data) : Action
The ::move-active signal is a keybinding signal which gets emitted to move the active selection.
|
the object that received the signal |
|
a GtkScrollType |
|
user data set when the signal handler was connected. |
Since 2.12
"popdown"
signalgboolean user_function (GtkComboBox *button,
gpointer user_data) : Action
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.
|
the object which received the signal |
|
user data set when the signal handler was connected. |
Since 2.12
"popup"
signalvoid user_function (GtkComboBox *widget,
gpointer user_data) : Action
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.
|
the object that received the signal |
|
user data set when the signal handler was connected. |
Since 2.12