------------------------------------------------------------------------------ -- -- -- Copyright (C) 1998-2000 E. Briot, J. Brobecker and A. Charlet -- -- Copyright (C) 2000-2014, AdaCore -- -- -- -- This library is free software; you can redistribute it and/or modify it -- -- under terms of the GNU General Public License as published by the Free -- -- Software Foundation; either version 3, 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 MERCHAN- -- -- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- <http://www.gnu.org/licenses/>. -- -- -- ------------------------------------------------------------------------------ -- <description> -- The Gtk.Button.Gtk_Button widget is generally used to trigger a callback -- function that is called when the button is pressed. The various signals and -- how to use them are outlined below. -- -- The Gtk.Button.Gtk_Button widget can hold any valid child widget. That is, -- it can hold almost any other standard Gtk.Widget.Gtk_Widget. The most -- commonly used child is the Gtk.Label.Gtk_Label. -- -- </description> -- <screenshot>gtk-button</screenshot> -- <group>Buttons and Toggles</group> -- <testgtk>create_buttons.adb</testgtk> pragma Ada_2005; pragma Warnings (Off, "*is already use-visible*");
with Gdk; use Gdk;
with Glib; use Glib;
with Glib.Object; use Glib.Object;
with Glib.Properties; use Glib.Properties;
with Glib.Types; use Glib.Types;
with Glib.Variant; use Glib.Variant;
with Gtk.Action; use Gtk.Action;
with Gtk.Actionable; use Gtk.Actionable;
with Gtk.Activatable; use Gtk.Activatable;
with Gtk.Bin; use Gtk.Bin;
with Gtk.Buildable; use Gtk.Buildable;
with Gtk.Enums; use Gtk.Enums;
with Gtk.Widget; use Gtk.Widget;
package Gtk.Button is
type Gtk_Button_Record is new Gtk_Bin_Record with null record;
type Gtk_Button is access all Gtk_Button_Record'Class;
------------------ -- Constructors -- ------------------ procedure Gtk_New_From_Stock
(Button : out Gtk_Button;
Stock_Id : UTF8_String);
procedure Initialize_From_Stock
(Button : not null access Gtk_Button_Record'Class;
Stock_Id : UTF8_String);
-- Creates a new Gtk.Button.Gtk_Button containing the image and text from -- a stock item. Some stock ids have preprocessor macros like GTK_STOCK_OK -- and GTK_STOCK_APPLY. -- If Stock_Id is unknown, then it will be treated as a mnemonic label (as -- for Gtk.Button.Gtk_New_With_Mnemonic). -- "stock_id": the name of the stock item function Gtk_Button_New_From_Stock
(Stock_Id : UTF8_String) return Gtk_Button;
-- Creates a new Gtk.Button.Gtk_Button containing the image and text from -- a stock item. Some stock ids have preprocessor macros like GTK_STOCK_OK -- and GTK_STOCK_APPLY. -- If Stock_Id is unknown, then it will be treated as a mnemonic label (as -- for Gtk.Button.Gtk_New_With_Mnemonic). -- "stock_id": the name of the stock item procedure Gtk_New (Button : out Gtk_Button; Label : UTF8_String := "");
procedure Initialize
(Button : not null access Gtk_Button_Record'Class;
Label : UTF8_String := "");
-- Creates a Gtk.Button.Gtk_Button widget with a Gtk.Label.Gtk_Label child -- containing the given text. -- "label": The text you want the Gtk.Label.Gtk_Label to hold. function Gtk_Button_New_With_Label
(Label : UTF8_String := "") return Gtk_Button;
-- Creates a Gtk.Button.Gtk_Button widget with a Gtk.Label.Gtk_Label child -- containing the given text. -- "label": The text you want the Gtk.Label.Gtk_Label to hold. procedure Gtk_New_With_Mnemonic
(Button : out Gtk_Button;
Label : UTF8_String);
procedure Initialize_With_Mnemonic
(Button : not null access Gtk_Button_Record'Class;
Label : UTF8_String);
-- Creates a new Gtk.Button.Gtk_Button containing a label. If characters -- in Label are preceded by an underscore, they are underlined. If you need -- a literal underscore character in a label, use '__' (two underscores). -- The first underlined character represents a keyboard accelerator called -- a mnemonic. Pressing Alt and that key activates the button. -- "label": The text of the button, with an underscore in front of the -- mnemonic character function Gtk_Button_New_With_Mnemonic
(Label : UTF8_String) return Gtk_Button;
-- Creates a new Gtk.Button.Gtk_Button containing a label. If characters -- in Label are preceded by an underscore, they are underlined. If you need -- a literal underscore character in a label, use '__' (two underscores). -- The first underlined character represents a keyboard accelerator called -- a mnemonic. Pressing Alt and that key activates 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_button_get_type");
------------- -- Methods -- ------------- procedure Clicked (Button : not null access Gtk_Button_Record);
-- Emits a Gtk.Button.Gtk_Button::clicked signal to the given -- Gtk.Button.Gtk_Button. procedure Enter (Button : not null access Gtk_Button_Record);
pragma Obsolescent (Enter);
-- Emits a Gtk.Button.Gtk_Button::enter signal to the given -- Gtk.Button.Gtk_Button. -- Deprecated since 2.20, Use the -- Gtk.Widget.Gtk_Widget::enter-notify-event signal. procedure Get_Alignment
(Button : not null access Gtk_Button_Record;
Xalign : out Gfloat;
Yalign : out Gfloat);
-- Gets the alignment of the child in the button. -- Since: gtk+ 2.4 -- "xalign": return location for horizontal alignment -- "yalign": return location for vertical alignment procedure Set_Alignment
(Button : not null access Gtk_Button_Record;
Xalign : Gfloat;
Yalign : Gfloat);
-- Sets the alignment of the child. This property has no effect unless the -- child is a Gtk.Misc.Gtk_Misc or a Gtk.Alignment.Gtk_Alignment. -- Since: gtk+ 2.4 -- "xalign": the horizontal position of the child, 0.0 is left aligned, -- 1.0 is right aligned -- "yalign": the vertical position of the child, 0.0 is top aligned, 1.0 -- is bottom aligned function Get_Always_Show_Image
(Button : not null access Gtk_Button_Record) return Boolean;
-- Returns whether the button will ignore the -- Gtk.Settings.Gtk_Settings:gtk-button-images setting and always show the -- image, if available. -- Since: gtk+ 3.6 procedure Set_Always_Show_Image
(Button : not null access Gtk_Button_Record;
Always_Show : Boolean);
-- If True, the button will ignore the -- Gtk.Settings.Gtk_Settings:gtk-button-images setting and always show the -- image, if available. -- Use this property if the button would be useless or hard to use without -- the image. -- Since: gtk+ 3.6 -- "always_show": True if the menuitem should always show the image function Get_Event_Window
(Button : not null access Gtk_Button_Record) return Gdk.Gdk_Window;
-- Returns the button's event window if it is realized, null otherwise. -- This function should be rarely needed. -- Since: gtk+ 2.22 function Get_Focus_On_Click
(Button : not null access Gtk_Button_Record) return Boolean;
-- Returns whether the button grabs focus when it is clicked with the -- mouse. See Gtk.Button.Set_Focus_On_Click. -- Since: gtk+ 2.4 procedure Set_Focus_On_Click
(Button : not null access Gtk_Button_Record;
Focus_On_Click : Boolean);
-- Sets whether the button 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. -- Since: gtk+ 2.4 -- "focus_on_click": whether the button grabs focus when clicked with the -- mouse function Get_Image
(Button : not null access Gtk_Button_Record)
return Gtk.Widget.Gtk_Widget;
-- Gets the widget that is currenty set as the image of Button. This may -- have been explicitly set by Gtk.Button.Set_Image or constructed by -- Gtk.Button.Gtk_New_From_Stock. -- Since: gtk+ 2.6 procedure Set_Image
(Button : not null access Gtk_Button_Record;
Image : not null access Gtk.Widget.Gtk_Widget_Record'Class);
-- Set the image of Button to the given widget. Note that it depends on -- the Gtk.Settings.Gtk_Settings:gtk-button-images setting whether the -- image will be displayed or not, you don't have to call Gtk.Widget.Show -- on Image yourself. -- Since: gtk+ 2.6 -- "image": a widget to set as the image for the button function Get_Image_Position
(Button : not null access Gtk_Button_Record)
return Gtk.Enums.Gtk_Position_Type;
-- Gets the position of the image relative to the text inside the button. -- Since: gtk+ 2.10 procedure Set_Image_Position
(Button : not null access Gtk_Button_Record;
Position : Gtk.Enums.Gtk_Position_Type);
-- Sets the position of the image relative to the text inside the button. -- Since: gtk+ 2.10 -- "position": the position function Get_Label
(Button : not null access Gtk_Button_Record) return UTF8_String;
-- Fetches the text from the label of the button, as set by -- Gtk.Button.Set_Label. If the label text has not been set the return -- value will be null. This will be the case if you create an empty button -- with gtk_button_new to use as a container. procedure Set_Label
(Button : not null access Gtk_Button_Record;
Label : UTF8_String);
-- Sets the text of the label of the button to Str. This text is also used -- to select the stock item if Gtk.Button.Set_Use_Stock is used. -- This will also clear any previously set labels. -- "label": a string function Get_Relief
(Button : not null access Gtk_Button_Record)
return Gtk.Enums.Gtk_Relief_Style;
-- Returns the current relief style of the given Gtk.Button.Gtk_Button. procedure Set_Relief
(Button : not null access Gtk_Button_Record;
Newstyle : Gtk.Enums.Gtk_Relief_Style);
-- Sets the relief style of the edges of the given Gtk.Button.Gtk_Button -- widget. Three styles exist, GTK_RELIEF_NORMAL, GTK_RELIEF_HALF, -- GTK_RELIEF_NONE. The default style is, as one can guess, -- GTK_RELIEF_NORMAL. -- <!-- FIXME: put pictures of each style --> -- "newstyle": The GtkReliefStyle as described above. function Get_Use_Stock
(Button : not null access Gtk_Button_Record) return Boolean;
-- Returns whether the button label is a stock item. procedure Set_Use_Stock
(Button : not null access Gtk_Button_Record;
Use_Stock : Boolean);
-- If True, the label set on the button is used as a stock id to select -- the stock item for the button. -- "use_stock": True if the button should use a stock item function Get_Use_Underline
(Button : not null access Gtk_Button_Record) return Boolean;
-- Returns whether an embedded underline in the button label indicates a -- mnemonic. See gtk_button_set_use_underline (). procedure Set_Use_Underline
(Button : not null access Gtk_Button_Record;
Use_Underline : Boolean);
-- If true, an underline in the text of the button label indicates the -- next character should be used for the mnemonic accelerator key. -- "use_underline": True if underlines in the text indicate mnemonics procedure Leave (Button : not null access Gtk_Button_Record);
pragma Obsolescent (Leave);
-- Emits a Gtk.Button.Gtk_Button::leave signal to the given -- Gtk.Button.Gtk_Button. -- Deprecated since 2.20, Use the -- Gtk.Widget.Gtk_Widget::leave-notify-event signal. procedure Pressed (Button : not null access Gtk_Button_Record);
pragma Obsolescent (Pressed);
-- Emits a Gtk.Button.Gtk_Button::pressed signal to the given -- Gtk.Button.Gtk_Button. -- Deprecated since 2.20, Use the -- Gtk.Widget.Gtk_Widget::button-press-event signal. procedure Released (Button : not null access Gtk_Button_Record);
pragma Obsolescent (Released);
-- Emits a Gtk.Button.Gtk_Button::released signal to the given -- Gtk.Button.Gtk_Button. -- Deprecated since 2.20, Use the -- Gtk.Widget.Gtk_Widget::button-release-event signal. --------------------------------------------- -- Inherited subprograms (from interfaces) -- --------------------------------------------- -- Methods inherited from the Buildable interface are not duplicated here -- since they are meant to be used by tools, mostly. If you need to call -- them, use an explicit cast through the "-" operator below. function Get_Action_Name
(Self : not null access Gtk_Button_Record) return UTF8_String;
procedure Set_Action_Name
(Self : not null access Gtk_Button_Record;
Action_Name : UTF8_String);
function Get_Action_Target_Value
(Self : not null access Gtk_Button_Record)
return Glib.Variant.Gvariant;
procedure Set_Action_Target_Value
(Self : not null access Gtk_Button_Record;
Target_Value : Glib.Variant.Gvariant);
procedure Set_Detailed_Action_Name
(Self : not null access Gtk_Button_Record;
Detailed_Action_Name : UTF8_String);
procedure Do_Set_Related_Action
(Self : not null access Gtk_Button_Record;
Action : not null access Gtk.Action.Gtk_Action_Record'Class);
function Get_Related_Action
(Self : not null access Gtk_Button_Record)
return Gtk.Action.Gtk_Action;
procedure Set_Related_Action
(Self : not null access Gtk_Button_Record;
Action : not null access Gtk.Action.Gtk_Action_Record'Class);
function Get_Use_Action_Appearance
(Self : not null access Gtk_Button_Record) return Boolean;
procedure Set_Use_Action_Appearance
(Self : not null access Gtk_Button_Record;
Use_Appearance : Boolean);
procedure Sync_Action_Properties
(Self : not null access Gtk_Button_Record;
Action : access Gtk.Action.Gtk_Action_Record'Class);
---------------- -- Properties -- ---------------- -- The following properties are defined for this widget. See -- Glib.Properties for more information on properties) Always_Show_Image_Property : constant Glib.Properties.Property_Boolean;
-- If True, the button will ignore the -- Gtk.Settings.Gtk_Settings:gtk-button-images setting and always show the -- image, if available. -- -- Use this property if the button would be useless or hard to use without -- the image. Focus_On_Click_Property : constant Glib.Properties.Property_Boolean;
Image_Property : constant Glib.Properties.Property_Object;
-- Type: Gtk.Widget.Gtk_Widget -- The child widget to appear next to the button text. Image_Position_Property : constant Gtk.Enums.Property_Gtk_Position_Type;
-- The position of the image relative to the text inside the button. Label_Property : constant Glib.Properties.Property_String;
Relief_Property : constant Gtk.Enums.Property_Gtk_Relief_Style;
Use_Stock_Property : constant Glib.Properties.Property_Boolean;
Use_Underline_Property : constant Glib.Properties.Property_Boolean;
Xalign_Property : constant Glib.Properties.Property_Float;
-- If the child of the button is a Gtk.Misc.Gtk_Misc or -- Gtk.Alignment.Gtk_Alignment, this property can be used to control its -- horizontal alignment. 0.0 is left aligned, 1.0 is right aligned. Yalign_Property : constant Glib.Properties.Property_Float;
-- If the child of the button is a Gtk.Misc.Gtk_Misc or -- Gtk.Alignment.Gtk_Alignment, this property can be used to control its -- vertical alignment. 0.0 is top aligned, 1.0 is bottom aligned. ------------- -- Signals -- ------------- type Cb_Gtk_Button_Void is not null access procedure (Self : access Gtk_Button_Record'Class);
type Cb_GObject_Void is not null access procedure
(Self : access Glib.Object.GObject_Record'Class);
Signal_Activate : constant Glib.Signal_Name := "activate";
procedure On_Activate
(Self : not null access Gtk_Button_Record;
Call : Cb_Gtk_Button_Void;
After : Boolean := False);
procedure On_Activate
(Self : not null access Gtk_Button_Record;
Call : Cb_GObject_Void;
Slot : not null access Glib.Object.GObject_Record'Class;
After : Boolean := False);
-- The ::activate signal on GtkButton is an action signal and emitting it -- causes the button to animate press then release. Applications should -- never connect to this signal, but use the Gtk.Button.Gtk_Button::clicked -- signal. Signal_Clicked : constant Glib.Signal_Name := "clicked";
procedure On_Clicked
(Self : not null access Gtk_Button_Record;
Call : Cb_Gtk_Button_Void;
After : Boolean := False);
procedure On_Clicked
(Self : not null access Gtk_Button_Record;
Call : Cb_GObject_Void;
Slot : not null access Glib.Object.GObject_Record'Class;
After : Boolean := False);
-- Emitted when the button has been activated (pressed and released). Signal_Enter : constant Glib.Signal_Name := "enter";
procedure On_Enter
(Self : not null access Gtk_Button_Record;
Call : Cb_Gtk_Button_Void;
After : Boolean := False);
procedure On_Enter
(Self : not null access Gtk_Button_Record;
Call : Cb_GObject_Void;
Slot : not null access Glib.Object.GObject_Record'Class;
After : Boolean := False);
-- Emitted when the pointer enters the button. Signal_Leave : constant Glib.Signal_Name := "leave";
procedure On_Leave
(Self : not null access Gtk_Button_Record;
Call : Cb_Gtk_Button_Void;
After : Boolean := False);
procedure On_Leave
(Self : not null access Gtk_Button_Record;
Call : Cb_GObject_Void;
Slot : not null access Glib.Object.GObject_Record'Class;
After : Boolean := False);
-- Emitted when the pointer leaves the button. Signal_Pressed : constant Glib.Signal_Name := "pressed";
procedure On_Pressed
(Self : not null access Gtk_Button_Record;
Call : Cb_Gtk_Button_Void;
After : Boolean := False);
procedure On_Pressed
(Self : not null access Gtk_Button_Record;
Call : Cb_GObject_Void;
Slot : not null access Glib.Object.GObject_Record'Class;
After : Boolean := False);
-- Emitted when the button is pressed. Signal_Released : constant Glib.Signal_Name := "released";
procedure On_Released
(Self : not null access Gtk_Button_Record;
Call : Cb_Gtk_Button_Void;
After : Boolean := False);
procedure On_Released
(Self : not null access Gtk_Button_Record;
Call : Cb_GObject_Void;
Slot : not null access Glib.Object.GObject_Record'Class;
After : Boolean := False);
-- Emitted when the button is released. ---------------- -- Interfaces -- ---------------- -- This class implements several interfaces. See Glib.Types -- -- - "Actionable" -- -- - "Activatable" -- -- - "Buildable" package Implements_Gtk_Actionable is new Glib.Types.Implements
(Gtk.Actionable.Gtk_Actionable, Gtk_Button_Record, Gtk_Button);
function "+"
(Widget : access Gtk_Button_Record'Class)
return Gtk.Actionable.Gtk_Actionable
renames Implements_Gtk_Actionable.To_Interface;
function "-"
(Interf : Gtk.Actionable.Gtk_Actionable)
return Gtk_Button
renames Implements_Gtk_Actionable.To_Object;
package Implements_Gtk_Activatable is new Glib.Types.Implements
(Gtk.Activatable.Gtk_Activatable, Gtk_Button_Record, Gtk_Button);
function "+"
(Widget : access Gtk_Button_Record'Class)
return Gtk.Activatable.Gtk_Activatable
renames Implements_Gtk_Activatable.To_Interface;
function "-"
(Interf : Gtk.Activatable.Gtk_Activatable)
return Gtk_Button
renames Implements_Gtk_Activatable.To_Object;
package Implements_Gtk_Buildable is new Glib.Types.Implements
(Gtk.Buildable.Gtk_Buildable, Gtk_Button_Record, Gtk_Button);
function "+"
(Widget : access Gtk_Button_Record'Class)
return Gtk.Buildable.Gtk_Buildable
renames Implements_Gtk_Buildable.To_Interface;
function "-"
(Interf : Gtk.Buildable.Gtk_Buildable)
return Gtk_Button
renames Implements_Gtk_Buildable.To_Object;
private Yalign_Property : constant Glib.Properties.Property_Float :=
Glib.Properties.Build ("yalign");
Xalign_Property : constant Glib.Properties.Property_Float :=
Glib.Properties.Build ("xalign");
Use_Underline_Property : constant Glib.Properties.Property_Boolean :=
Glib.Properties.Build ("use-underline");
Use_Stock_Property : constant Glib.Properties.Property_Boolean :=
Glib.Properties.Build ("use-stock");
Relief_Property : constant Gtk.Enums.Property_Gtk_Relief_Style :=
Gtk.Enums.Build ("relief");
Label_Property : constant Glib.Properties.Property_String :=
Glib.Properties.Build ("label");
Image_Position_Property : constant Gtk.Enums.Property_Gtk_Position_Type :=
Gtk.Enums.Build ("image-position");
Image_Property : constant Glib.Properties.Property_Object :=
Glib.Properties.Build ("image");
Focus_On_Click_Property : constant Glib.Properties.Property_Boolean :=
Glib.Properties.Build ("focus-on-click");
Always_Show_Image_Property : constant Glib.Properties.Property_Boolean :=
Glib.Properties.Build ("always-show-image");
end Gtk.Button;