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GtkCombo

GtkCombo — A text entry field with a dropdown list

Synopsis


#include <gtk/gtk.h>


            GtkCombo;
GtkWidget*  gtk_combo_new                   (void);
void        gtk_combo_set_popdown_strings   (GtkCombo *combo,
                                             GList *strings);
void        gtk_combo_set_value_in_list     (GtkCombo *combo,
                                             gboolean val,
                                             gboolean ok_if_empty);
void        gtk_combo_set_use_arrows        (GtkCombo *combo,
                                             gboolean val);
void        gtk_combo_set_use_arrows_always (GtkCombo *combo,
                                             gboolean val);
void        gtk_combo_set_case_sensitive    (GtkCombo *combo,
                                             gboolean val);
void        gtk_combo_set_item_string       (GtkCombo *combo,
                                             GtkItem *item,
                                             const gchar *item_value);
void        gtk_combo_disable_activate      (GtkCombo *combo);

Object Hierarchy


  GObject
   +----GtkObject
         +----GtkWidget
               +----GtkContainer
                     +----GtkBox
                           +----GtkHBox
                                 +----GtkCombo

Implemented Interfaces

GtkCombo implements AtkImplementorIface.

Properties


  "allow-empty"          gboolean              : Read / Write
  "case-sensitive"       gboolean              : Read / Write
  "enable-arrow-keys"    gboolean              : Read / Write
  "enable-arrows-always" gboolean              : Read / Write
  "value-in-list"        gboolean              : Read / Write

Description

The GtkCombo widget consists of a single-line text entry field and a drop-down list. The drop-down list is displayed when the user clicks on a small arrow button to the right of the entry field.

The drop-down list is a GtkList widget and can be accessed using the list member of the GtkCombo-struct. List elements can contain arbitrary widgets, but if an element is not a plain label, then you must use the gtk_list_set_item_string() function. This sets the string which will be placed in the text entry field when the item is selected.

By default, the user can step through the items in the list using the arrow (cursor) keys, though this behaviour can be turned off with gtk_combo_set_use_arrows().

As of GTK+ 2.4, GtkCombo has been deprecated in favor of GtkComboBox.

Example 1. Creating a GtkCombo widget with simple text items.

  GtkWidget *combo;
  GList *items = NULL;

  items = g_list_append (items, "First Item");
  items = g_list_append (items, "Second Item");
  items = g_list_append (items, "Third Item");
  items = g_list_append (items, "Fourth Item");
  items = g_list_append (items, "Fifth Item");

  combo = gtk_combo_new ();
  gtk_combo_set_popdown_strings (GTK_COMBO (combo), items);

Example 2. Creating a GtkCombo widget with a complex item.

  GtkWidget *combo, *item, *hbox, *arrow, *label;

  combo = gtk_combo_new ();

  item = gtk_list_item_new ();
  gtk_widget_show (item);

  /* You can put almost anything into the GtkListItem widget. Here we will use
     a horizontal box with an arrow and a label in it. */
  hbox = gtk_hbox_new (FALSE, 3);
  gtk_container_add (GTK_CONTAINER (item), hbox);
  gtk_widget_show (hbox);

  arrow = gtk_arrow_new (GTK_ARROW_RIGHT, GTK_SHADOW_OUT);
  gtk_widget_show (arrow);
  gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);

  label = gtk_label_new ("First Item");
  gtk_widget_show (label);
  gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);

  /* You must set the string to display in the entry field when the item is
     selected. */
  gtk_combo_set_item_string (GTK_COMBO (combo), GTK_ITEM (item), "1st Item");

  /* Now we simply add the item to the combo's list. */
  gtk_container_add (GTK_CONTAINER (GTK_COMBO (combo)->list), item);

Details

GtkCombo

typedef struct {
	GtkWidget *entry;
	
	GtkWidget *list;
} GtkCombo;

Warning

GtkCombo is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

The GtkFixedChild-struct struct contains the following fields. (These fields should be considered read-only. They should never be set by an application.)

GtkWidget *entry;the text entry field.
GtkWidget *list;the list shown in the drop-down window.

gtk_combo_new ()

GtkWidget*  gtk_combo_new                   (void);

Warning

gtk_combo_new is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Creates a new GtkCombo.

Returns :a new GtkCombo.

gtk_combo_set_popdown_strings ()

void        gtk_combo_set_popdown_strings   (GtkCombo *combo,
                                             GList *strings);

Warning

gtk_combo_set_popdown_strings is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Convenience function to set all of the items in the popup list. (See the example above.)

combo :a GtkCombo.
strings :a list of strings, or NULL to clear the popup list

gtk_combo_set_value_in_list ()

void        gtk_combo_set_value_in_list     (GtkCombo *combo,
                                             gboolean val,
                                             gboolean ok_if_empty);

Warning

gtk_combo_set_value_in_list is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Specifies whether the value entered in the text entry field must match one of the values in the list. If this is set then the user will not be able to perform any other action until a valid value has been entered.

If an empty field is acceptable, the ok_if_empty parameter should be TRUE.

combo :a GtkCombo.
val :TRUE if the value entered must match one of the values in the list.
ok_if_empty :TRUE if an empty value is considered valid.

gtk_combo_set_use_arrows ()

void        gtk_combo_set_use_arrows        (GtkCombo *combo,
                                             gboolean val);

Warning

gtk_combo_set_use_arrows is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Specifies if the arrow (cursor) keys can be used to step through the items in the list. This is on by default.

combo :a GtkCombo.
val :TRUE if the arrow keys can be used to step through the items in the list.

gtk_combo_set_use_arrows_always ()

void        gtk_combo_set_use_arrows_always (GtkCombo *combo,
                                             gboolean val);

Warning

gtk_combo_set_use_arrows_always is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Obsolete function, does nothing.

combo :a GtkCombo.
val :unused

gtk_combo_set_case_sensitive ()

void        gtk_combo_set_case_sensitive    (GtkCombo *combo,
                                             gboolean val);

Warning

gtk_combo_set_case_sensitive is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Specifies whether the text entered into the GtkEntry field and the text in the list items is case sensitive.

This may be useful, for example, when you have called gtk_combo_set_value_in_list() to limit the values entered, but you are not worried about differences in case.

combo :a GtkCombo.
val :TRUE if the text in the list items is case sensitive.

gtk_combo_set_item_string ()

void        gtk_combo_set_item_string       (GtkCombo *combo,
                                             GtkItem *item,
                                             const gchar *item_value);

Warning

gtk_combo_set_item_string is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Sets the string to place in the GtkEntry field when a particular list item is selected. This is needed if the list item is not a simple label.

combo :a GtkCombo.
item :a GtkItem.
item_value :the string to place in the GtkEntry when item is selected.

gtk_combo_disable_activate ()

void        gtk_combo_disable_activate      (GtkCombo *combo);

Warning

gtk_combo_disable_activate is deprecated and should not be used in newly-written code. Use GtkComboBox instead.

Stops the GtkCombo widget from showing the popup list when the GtkEntry emits the "activate" signal, i.e. when the Return key is pressed. This may be useful if, for example, you want the Return key to close a dialog instead.

combo :a GtkCombo.

Properties

The "allow-empty" property

  "allow-empty"          gboolean              : Read / Write

Whether an empty value may be entered in this field.

Default value: TRUE

The "case-sensitive" property

  "case-sensitive"       gboolean              : Read / Write

Whether list item matching is case sensitive.

Default value: FALSE

The "enable-arrow-keys" property

  "enable-arrow-keys"    gboolean              : Read / Write

Whether the arrow keys move through the list of items.

Default value: TRUE

The "enable-arrows-always" property

  "enable-arrows-always" gboolean              : Read / Write

Obsolete property, ignored.

Default value: TRUE

The "value-in-list" property

  "value-in-list"        gboolean              : Read / Write

Whether entered values must already be present in the list.

Default value: FALSE

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