----------------------------------------------------------------------- -- 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_Toggle_Button is like a regular button, but can be in one of two -- states, "active" or "inactive". Its visual aspect is modified when the -- state is changed. -- -- You should consider using a Gtk_Check_Button instead, since it looks nicer -- and provides more visual clues that the button can be toggled. -- -- -- gtk-toggle_button -- Buttons and Toggles -- create_toggle_buttons.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.Button; use Gtk.Button; with Gtk.Widget; use Gtk.Widget; package Gtk.Toggle_Button is type Gtk_Toggle_Button_Record is new Gtk_Button_Record with null record; type Gtk_Toggle_Button is access all Gtk_Toggle_Button_Record'Class; ------------------ -- Constructors -- ------------------ procedure Gtk_New (Toggle_Button : out Gtk_Toggle_Button; Label : UTF8_String := ""); procedure Initialize (Toggle_Button : access Gtk_Toggle_Button_Record'Class; Label : UTF8_String := ""); -- Initialize a button. If Label is "", then no label is created inside -- the button and you will have to provide your own child through a call to -- Gtk.Container.Add. This is the recommended way to put a pixmap inside a -- toggle button. procedure Gtk_New_With_Mnemonic (Toggle_Button : out Gtk_Toggle_Button; Label : UTF8_String); procedure Initialize_With_Mnemonic (Toggle_Button : access Gtk_Toggle_Button_Record'Class; Label : UTF8_String); -- Creates a new Gtk.Toggle_Button.Gtk_Toggle_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. -- "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_toggle_button_get_type"); ------------- -- Methods -- ------------- function Get_Active (Toggle_Button : access Gtk_Toggle_Button_Record) return Boolean; procedure Set_Active (Toggle_Button : access Gtk_Toggle_Button_Record; Is_Active : Boolean); -- Change the state of the button. When Is_Active is True, the button is -- drawn as a pressed button function Get_Inconsistent (Toggle_Button : access Gtk_Toggle_Button_Record) return Boolean; procedure Set_Inconsistent (Toggle_Button : access Gtk_Toggle_Button_Record; Setting : Boolean := True); -- If the user has selected a range of elements (such as some text or -- spreadsheet cells) that are affected by a toggle button, and the current -- values in that range are inconsistent, you may want to display the -- toggle in an "in between" state. This function turns on "in between" -- display. Normally you would turn off the inconsistent state again if the -- user toggles the toggle button. This has to be done manually, -- Gtk.Toggle_Button.Set_Inconsistent only affects visual appearance, it -- doesn't affect the semantics of the button. -- "setting": True if state is inconsistent function Get_Mode (Toggle_Button : access Gtk_Toggle_Button_Record) return Boolean; procedure Set_Mode (Toggle_Button : access Gtk_Toggle_Button_Record; Draw_Indicator : Boolean); -- Sets whether the button is displayed as a separate indicator and label. -- You can call this function on a checkbutton or a radiobutton with This -- function only affects instances of classes like -- Gtk.Check_Button.Gtk_Check_Button and Gtk.Radio_Button.Gtk_Radio_Button -- that derive from Gtk.Toggle_Button.Gtk_Toggle_Button, not instances of -- Gtk.Toggle_Button.Gtk_Toggle_Button itself. -- "draw_indicator": if True, draw the button as a separate indicator and -- label; if False, draw the button like a normal button procedure Toggled (Toggle_Button : access Gtk_Toggle_Button_Record); --------------------- -- Interfaces_Impl -- --------------------- procedure Do_Set_Related_Action (Self : access Gtk_Toggle_Button_Record; Action : access Gtk.Action.Gtk_Action_Record'Class); function Get_Related_Action (Self : access Gtk_Toggle_Button_Record) return Gtk.Action.Gtk_Action; procedure Set_Related_Action (Self : access Gtk_Toggle_Button_Record; Action : access Gtk.Action.Gtk_Action_Record'Class); function Get_Use_Action_Appearance (Self : access Gtk_Toggle_Button_Record) return Boolean; procedure Set_Use_Action_Appearance (Self : access Gtk_Toggle_Button_Record; Use_Appearance : Boolean); procedure Sync_Action_Properties (Self : access Gtk_Toggle_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_Toggle_Button_Record, Gtk_Toggle_Button); function "+" (Widget : access Gtk_Toggle_Button_Record'Class) return Gtk.Activatable.Gtk_Activatable renames Implements_Activatable.To_Interface; function "-" (Interf : Gtk.Activatable.Gtk_Activatable) return Gtk_Toggle_Button renames Implements_Activatable.To_Object; package Implements_Buildable is new Glib.Types.Implements (Gtk.Buildable.Gtk_Buildable, Gtk_Toggle_Button_Record, Gtk_Toggle_Button); function "+" (Widget : access Gtk_Toggle_Button_Record'Class) return Gtk.Buildable.Gtk_Buildable renames Implements_Buildable.To_Interface; function "-" (Interf : Gtk.Buildable.Gtk_Buildable) return Gtk_Toggle_Button renames Implements_Buildable.To_Object; ---------------- -- Properties -- ---------------- -- The following properties are defined for this widget. See -- Glib.Properties for more information on properties) -- -- Name: Active_Property -- Type: Boolean -- Flags: read-write -- -- Name: Draw_Indicator_Property -- Type: Boolean -- Flags: read-write -- -- Name: Inconsistent_Property -- Type: Boolean -- Flags: read-write Active_Property : constant Glib.Properties.Property_Boolean; Draw_Indicator_Property : constant Glib.Properties.Property_Boolean; Inconsistent_Property : constant Glib.Properties.Property_Boolean; ------------- -- Signals -- ------------- -- The following new signals are defined for this widget: -- -- "toggled" -- procedure Handler (Self : access Gtk_Toggle_Button_Record'Class); Signal_Toggled : constant Glib.Signal_Name := "toggled"; private Active_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("active"); Draw_Indicator_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("draw-indicator"); Inconsistent_Property : constant Glib.Properties.Property_Boolean := Glib.Properties.Build ("inconsistent"); end Gtk.Toggle_Button;