----------------------------------------------------------------------- -- GtkAda - Ada95 binding for Gtk+/Gnome -- -- -- -- Copyright (C) 1998-2000 E. Briot, J. Brobecker and A. Charlet -- -- Copyright (C) 2000-2011, AdaCore -- -- -- -- This library is free software; you can redistribute it and/or -- -- modify it under the terms of the GNU General Public -- -- License as published by the Free Software Foundation; either -- -- version 2 of the License, or (at your option) any later version. -- -- -- -- This library is distributed in the hope that it will be useful, -- -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -- -- General Public License for more details. -- -- -- -- You should have received a copy of the GNU General Public -- -- License along with this library; if not, write to the -- -- Free Software Foundation, Inc., 59 Temple Place - Suite 330, -- -- Boston, MA 02111-1307, USA. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ----------------------------------------------------------------------- -- -- The Gtk_Combo 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 Gtk_List widget and can be accessed using the list -- member of the Gtk_Combo. 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 -- Set_Use_Arrows. -- -- Normally the arrow keys are only active when the contents of the text -- entry field matches one of the items in the list. If the contents of the -- entry field do not match any of the list items, then pressing the arrow -- keys does nothing. However, by calling Set_Use_Arrows_Always you can -- specify that the arrow keys are always active. If the contents of the entry -- field does not match any of the items in the list, then pressing the up or -- down arrow key will set the entry field to the last or first item in the -- list, respectively. -- -- -- gtk-combo -- Obsolescent widgets -- Gtk.Combo_Box pragma Warnings (Off, "*is already use-visible*"); with Glib; use Glib; with Glib.Properties; use Glib.Properties; with Glib.Types; use Glib.Types; with Gtk.Box; use Gtk.Box; with Gtk.Buildable; use Gtk.Buildable; with Gtk.Enums; use Gtk.Enums; with Gtk.Item; use Gtk.Item; with Gtk.Orientable; use Gtk.Orientable; with Gtk.Widget; use Gtk.Widget; package Gtk.Combo is pragma Obsolescent; type Gtk_Combo_Record is new Gtk_Hbox_Record with null record; type Gtk_Combo is access all Gtk_Combo_Record'Class; ------------------ -- Constructors -- ------------------ procedure Gtk_New (Combo_Box : out Gtk_Combo); procedure Initialize (Combo_Box : access Gtk_Combo_Record'Class); function Get_Type return Glib.GType; pragma Import (C, Get_Type, "gtk_combo_get_type"); ------------- -- Methods -- ------------- procedure Disable_Activate (Combo_Box : access Gtk_Combo_Record); -- Disable the standard handler for the return key in the entry field. The -- default behavior is to popdown the combo box list, so that the user can -- choose from it. However, if you want to add your own callback for the -- return key, you need to call this subprogram, and connect a handler to -- the "activate" signal for the entry. procedure Set_Case_Sensitive (Combo_Box : access Gtk_Combo_Record; Val : Boolean := True); -- Specify whether the text entered into the Gtk_Entry field and the text -- in the list items are case sensitive. This may be useful, for example, -- when you have called Set_Value_In_List to limit the values entered, but -- you are not worried about differences in case. procedure Set_Item_String (Combo_Box : access Gtk_Combo_Record; Item : access Gtk.Item.Gtk_Item_Record'Class; Item_Value : UTF8_String); -- Set the string to place in the Gtk_Entry field when a particular list -- item is selected. This is needed if the list item is not a simple label. procedure Set_Popdown_Strings (Combo_Box : access Gtk_Combo_Record; Strings : Gtk.Enums.String_List.Glist); -- Set all the items in the popup list. procedure Set_Use_Arrows (Combo_Box : access Gtk_Combo_Record; Val : Boolean := True); -- Specify if the arrow (cursor) keys can be used to step through the -- items in the list. This is on by default. procedure Set_Use_Arrows_Always (Combo_Box : access Gtk_Combo_Record; Val : Boolean := True); -- Specify if the arrow keys will still work even if the current contents -- of the Gtk_Entry field do not match any of the list items. procedure Set_Value_In_List (Combo_Box : access Gtk_Combo_Record; Val : Boolean := True; Ok_If_Empty : Boolean := False); -- Specify 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. If the value entered must match one of the values in the list, val -- should be True. ------------ -- Fields -- ------------ function Get_Entry (Combo_Box : access Gtk_Combo_Record) return Gtk.Widget.Gtk_Widget; procedure Set_Entry (Combo_Box : access Gtk_Combo_Record; Value : access Gtk.Widget.Gtk_Widget_Record'Class); function Get_List (Combo_Box : access Gtk_Combo_Record) return Gtk.Widget.Gtk_Widget; --------------------- -- Interfaces_Impl -- --------------------- function Get_Orientation (Self : access Gtk_Combo_Record) return Gtk.Enums.Gtk_Orientation; procedure Set_Orientation (Self : access Gtk_Combo_Record; Orientation : Gtk.Enums.Gtk_Orientation); ---------------- -- Interfaces -- ---------------- -- This class implements several interfaces. See Glib.Types -- -- - "Buildable" -- -- - "Orientable" package Implements_Buildable is new Glib.Types.Implements (Gtk.Buildable.Gtk_Buildable, Gtk_Combo_Record, Gtk_Combo); function "+" (Widget : access Gtk_Combo_Record'Class) return Gtk.Buildable.Gtk_Buildable renames Implements_Buildable.To_Interface; function "-" (Interf : Gtk.Buildable.Gtk_Buildable) return Gtk_Combo renames Implements_Buildable.To_Object; package Implements_Orientable is new Glib.Types.Implements (Gtk.Orientable.Gtk_Orientable, Gtk_Combo_Record, Gtk_Combo); function "+" (Widget : access Gtk_Combo_Record'Class) return Gtk.Orientable.Gtk_Orientable renames Implements_Orientable.To_Interface; function "-" (Interf : Gtk.Orientable.Gtk_Orientable) return Gtk_Combo renames Implements_Orientable.To_Object; ---------------- -- Properties -- ---------------- -- The following properties are defined for this widget. See -- Glib.Properties for more information on properties) -- -- Name: Allow_Empty_Property -- Type: Boolean -- Flags: read-write -- -- Name: Case_Sensitive_Property -- Type: Boolean -- Flags: read-write -- -- Name: Enable_Arrow_Keys_Property -- Type: Boolean -- Flags: read-write -- -- Name: Enable_Arrows_Always_Property -- Type: Boolean -- Flags: read-write -- -- Name: Value_In_List_Property -- Type: Boolean -- Flags: read-write Allow_Empty_Property : constant Glib.Properties.Property_Boolean; Case_Sensitive_Property : constant Glib.Properties.Property_Boolean; Enable_Arrow_Keys_Property : constant Glib.Properties.Property_Boolean; Enable_Arrows_Always_Property : constant Glib.Properties.Property_Boolean; Value_In_List_Property : constant Glib.Properties.Property_Boolean; private Allow_Empty_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("allow-empty"); Case_Sensitive_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("case-sensitive"); Enable_Arrow_Keys_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("enable-arrow-keys"); Enable_Arrows_Always_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("enable-arrows-always"); Value_In_List_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("value-in-list"); end Gtk.Combo;