------------------------------------------------------------------------------
-- --
-- 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.Fixed.Gtk_Fixed widget is a container which can place child
-- widgets at fixed positions and with fixed sizes, given in pixels.
-- Gtk.Fixed.Gtk_Fixed performs no automatic layout management.
--
-- For most applications, you should not use this container! It keeps you
-- from having to learn about the other GTK+ containers, but it results in
-- broken applications. With Gtk.Fixed.Gtk_Fixed, the following things will
-- result in truncated text, overlapping widgets, and other display bugs:
--
--
--
-- * Themes, which may change widget sizes.
--
-- * Fonts other than the one you used to write the app will of course
-- change the size of widgets containing text; keep in mind that users may use
-- a larger font because of difficulty reading the default, or they may be
-- using Windows or the framebuffer port of GTK+, where different fonts are
-- available.
--
-- * Translation of text into other languages changes its size. Also,
-- display of non-English text will use a different font in many cases.
--
-- In addition, the fixed widget can't properly be mirrored in right-to-left
-- languages such as Hebrew and Arabic. i.e. normally GTK+ will flip the
-- interface to put labels to the right of the thing they label, but it can't
-- do that with Gtk.Fixed.Gtk_Fixed. So your application will not be usable in
-- right-to-left languages.
--
-- Finally, fixed positioning makes it kind of annoying to add/remove GUI
-- elements, since you have to reposition all the other elements. This is a
-- long-term maintenance problem for your application.
--
-- If you know none of these things are an issue for your application, and
-- prefer the simplicity of Gtk.Fixed.Gtk_Fixed, by all means use the widget.
-- But you should be aware of the tradeoffs.
--
-- </description>
-- <screenshot>gtk-fixed</screenshot>
-- <group>Layout containers</group>
-- <testgtk>create_fixed.adb</testgtk>
pragma Ada_2005;
pragma Warnings (Off, "*is already use-visible*");
with Glib; use Glib;
with Glib.Types; use Glib.Types;
with Gtk.Buildable; use Gtk.Buildable;
with Gtk.Container; use Gtk.Container;
with Gtk.Widget; use Gtk.Widget;
package Gtk.Fixed is
type Gtk_Fixed_Record is new Gtk_Container_Record with null record;
type Gtk_Fixed is access all Gtk_Fixed_Record'Class;
------------------
-- Constructors --
------------------
procedure Gtk_New (Fixed : out Gtk_Fixed);
procedure Initialize (Fixed : not null access Gtk_Fixed_Record'Class);
-- Creates a new Gtk.Fixed.Gtk_Fixed.
function Gtk_Fixed_New return Gtk_Fixed;
-- Creates a new Gtk.Fixed.Gtk_Fixed.
function Get_Type return Glib.GType;
pragma Import (C, Get_Type, "gtk_fixed_get_type");
-------------
-- Methods --
-------------
procedure Move
(Fixed : not null access Gtk_Fixed_Record;
Widget : not null access Gtk.Widget.Gtk_Widget_Record'Class;
X : Gint;
Y : Gint);
-- Move a child of a GtkFixed container to the given position. X indicates
-- the horizontal position to place the widget at. Y is the vertical
-- position to place the widget at.
-- "widget": the child widget.
-- "x": the horizontal position to move the widget to.
-- "y": the vertical position to move the widget to.
procedure Put
(Fixed : not null access Gtk_Fixed_Record;
Widget : not null access Gtk.Widget.Gtk_Widget_Record'Class;
X : Gint;
Y : Gint);
-- Add Widget to a Fixed container at the given position. X indicates the
-- horizontal position to place the widget at. Y is the vertical position
-- to place the widget at.
-- "widget": the widget to add.
-- "x": the horizontal position to place the widget at.
-- "y": the vertical position to place the widget at.
----------------
-- Interfaces --
----------------
-- This class implements several interfaces. See Glib.Types
--
-- - "Buildable"
package Implements_Gtk_Buildable is new Glib.Types.Implements
(Gtk.Buildable.Gtk_Buildable, Gtk_Fixed_Record, Gtk_Fixed);
function "+"
(Widget : access Gtk_Fixed_Record'Class)
return Gtk.Buildable.Gtk_Buildable
renames Implements_Gtk_Buildable.To_Interface;
function "-"
(Interf : Gtk.Buildable.Gtk_Buildable)
return Gtk_Fixed
renames Implements_Gtk_Buildable.To_Object;
end Gtk.Fixed;