----------------------------------------------------------------------- -- 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. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ----------------------------------------------------------------------- -- -- A Gtk_Radio_Button is a simple button that has two states, like a -- Gtk_Toggle_Button. However, Gtk_Radio_Buttons can be grouped together to -- get a special behavior: only one button in the group can be active at any -- given time. Thus, when the user selects one of the buttons from the group, -- the button that was previously selected is disabled. -- -- The radio buttons always belongs to a group, even if there is only one in -- this group. -- -- -- gtk-radio_button -- Buttons and Toggles -- create_radio_button.adb 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.Action; use Gtk.Action; with Gtk.Activatable; use Gtk.Activatable; with Gtk.Buildable; use Gtk.Buildable; with Gtk.Check_Button; use Gtk.Check_Button; with Gtk.Widget; use Gtk.Widget; package Gtk.Radio_Button is type Gtk_Radio_Button_Record is new Gtk_Check_Button_Record with null record; type Gtk_Radio_Button is access all Gtk_Radio_Button_Record'Class; ------------------ -- Constructors -- ------------------ procedure Gtk_New (Radio_Button : out Gtk_Radio_Button; Group : Gtk.Widget.Widget_SList.GSList := Widget_SList.Null_List; Label : UTF8_String := ""); procedure Initialize (Radio_Button : access Gtk_Radio_Button_Record'Class; Group : Gtk.Widget.Widget_SList.GSList := Widget_SList.Null_List; Label : UTF8_String := ""); -- Creates or initializes a new radio button, belonging to Group. If Label -- is left as the empty string, then the button will not have any child and -- you are free to put any thing you want in it, including a pixmap. To -- initialize the group (when creating the first button), leave Group to -- the Null_List. You can later get the new group that is created with a -- call to the Group subprogram below. -- "group": an existing radio button group, or null if you are creating a -- new group. -- "label": the text label to display next to the radio button. procedure Gtk_New (Radio_Button : out Gtk_Radio_Button; Group : Gtk.Radio_Button.Gtk_Radio_Button; Label : UTF8_String := ""); procedure Initialize (Radio_Button : access Gtk_Radio_Button_Record'Class; Group : Gtk.Radio_Button.Gtk_Radio_Button; Label : UTF8_String := ""); -- Creates a new Gtk.Radio_Button.Gtk_Radio_Button with a text label, -- adding it to the same group as Radio_Group_Member. -- "Group": widget to get radio group from or null -- "label": a text string to display next to the radio button. procedure Gtk_New_With_Mnemonic (Radio_Button : out Gtk_Radio_Button; Group : Gtk.Widget.Widget_SList.GSList := Widget_SList.Null_List; Label : UTF8_String); procedure Initialize_With_Mnemonic (Radio_Button : access Gtk_Radio_Button_Record'Class; Group : Gtk.Widget.Widget_SList.GSList := Widget_SList.Null_List; Label : UTF8_String); procedure Gtk_New_With_Mnemonic (Radio_Button : out Gtk_Radio_Button; Group : Gtk.Radio_Button.Gtk_Radio_Button; Label : UTF8_String); procedure Initialize_With_Mnemonic (Radio_Button : access Gtk_Radio_Button_Record'Class; Group : Gtk.Radio_Button.Gtk_Radio_Button; Label : UTF8_String); -- Creates a new Gtk.Radio_Button.Gtk_Radio_Button containing a label. The -- label will be created using Gtk.Label.Gtk_New_With_Mnemonic, so -- underscores in Label indicate the mnemonic for the button. -- To initialize a new group (when creating the first button), you should -- pass it null or a button that has not been created with Gtk_New, as in -- the example below. -- "Group": widget to get radio group from or null -- "label": the text of the button, with an underscore in front of the -- mnemonic character function Get_Type return Glib.GType; pragma Import (C, Get_Type, "gtk_radio_button_get_type"); ------------- -- Methods -- ------------- function Get_Group (Radio_Button : access Gtk_Radio_Button_Record) return Gtk.Widget.Widget_SList.GSList; procedure Set_Group (Radio_Button : access Gtk_Radio_Button_Record; Group : Gtk.Widget.Widget_SList.GSList); -- Sets a Gtk.Radio_Button.Gtk_Radio_Button's group. It should be noted -- that this does not change the layout of your interface in any way, so if -- you are changing the group, it is likely you will need to re-arrange the -- user interface to reflect these changes. -- "group": an existing radio button group, such as one returned from -- Gtk.Radio_Button.Get_Group. --------------------- -- Interfaces_Impl -- --------------------- procedure Do_Set_Related_Action (Self : access Gtk_Radio_Button_Record; Action : access Gtk.Action.Gtk_Action_Record'Class); function Get_Related_Action (Self : access Gtk_Radio_Button_Record) return Gtk.Action.Gtk_Action; procedure Set_Related_Action (Self : access Gtk_Radio_Button_Record; Action : access Gtk.Action.Gtk_Action_Record'Class); function Get_Use_Action_Appearance (Self : access Gtk_Radio_Button_Record) return Boolean; procedure Set_Use_Action_Appearance (Self : access Gtk_Radio_Button_Record; Use_Appearance : Boolean); procedure Sync_Action_Properties (Self : access Gtk_Radio_Button_Record; Action : access Gtk.Action.Gtk_Action_Record'Class); ---------------- -- Interfaces -- ---------------- -- This class implements several interfaces. See Glib.Types -- -- - "Activatable" -- -- - "Buildable" package Implements_Activatable is new Glib.Types.Implements (Gtk.Activatable.Gtk_Activatable, Gtk_Radio_Button_Record, Gtk_Radio_Button); function "+" (Widget : access Gtk_Radio_Button_Record'Class) return Gtk.Activatable.Gtk_Activatable renames Implements_Activatable.To_Interface; function "-" (Interf : Gtk.Activatable.Gtk_Activatable) return Gtk_Radio_Button renames Implements_Activatable.To_Object; package Implements_Buildable is new Glib.Types.Implements (Gtk.Buildable.Gtk_Buildable, Gtk_Radio_Button_Record, Gtk_Radio_Button); function "+" (Widget : access Gtk_Radio_Button_Record'Class) return Gtk.Buildable.Gtk_Buildable renames Implements_Buildable.To_Interface; function "-" (Interf : Gtk.Buildable.Gtk_Buildable) return Gtk_Radio_Button renames Implements_Buildable.To_Object; ---------------- -- Properties -- ---------------- -- The following properties are defined for this widget. See -- Glib.Properties for more information on properties) -- -- Name: Group_Property -- Type: Gtk.Radio_Button.Gtk_Radio_Button -- Flags: write Group_Property : constant Glib.Properties.Property_Object; ------------- -- Signals -- ------------- -- The following new signals are defined for this widget: -- -- "group-changed" -- procedure Handler (Self : access Gtk_Radio_Button_Record'Class); -- Emitted when the group of radio buttons that a radio button belongs to -- changes. This is emitted when a radio button switches from being alone -- to being part of a group of 2 or more buttons, or vice-versa, and when a -- button is moved from one group of 2 or more buttons to a different one, -- but not when the composition of the group that a button belongs to -- changes. Signal_Group_Changed : constant Glib.Signal_Name := "group-changed"; private Group_Property : constant Glib.Properties.Property_Object := Glib.Properties.Build ("group"); end Gtk.Radio_Button;