File: gtk-adjustment.adb

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-----------------------------------------------------------------------
--               GtkAda - Ada95 binding for Gtk+/Gnome               --
--                                                                   --
--   Copyright (C) 1998-2000 E. Briot, J. Brobecker and A. Charlet   --
--                Copyright (C) 2000-2001 ACT-Europe                 --
--                                                                   --
-- 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.                                       --
--                                                                   --
-----------------------------------------------------------------------

with System;

package body Gtk.Adjustment is

   ----------------
   -- Clamp_Page --
   ----------------

   procedure Clamp_Page
     (Adjustment : access Gtk_Adjustment_Record;
      Lower      : Gdouble;
      Upper      : Gdouble)
   is
      procedure Internal
        (Adjustment : System.Address;
         Lower      : Gdouble;
         Upper      : Gdouble);
      pragma Import (C, Internal, "gtk_adjustment_clamp_page");

   begin
      Internal (Get_Object (Adjustment), Lower, Upper);
   end Clamp_Page;

   ---------------
   -- Get_Lower --
   ---------------

   function Get_Lower
     (Adjustment : access Gtk_Adjustment_Record) return Gdouble
   is
      function Internal (Adj : System.Address) return Gdouble;
      pragma Import (C, Internal, "ada_adjustment_get_lower");

   begin
      return Internal (Get_Object (Adjustment));
   end Get_Lower;

   ---------------
   -- Get_Upper --
   ---------------

   function Get_Upper
     (Adjustment : access Gtk_Adjustment_Record) return Gdouble
   is
      function Internal (Adj : System.Address) return Gdouble;
      pragma Import (C, Internal, "ada_adjustment_get_upper");

   begin
      return Internal (Get_Object (Adjustment));
   end Get_Upper;

   ------------------------
   -- Get_Step_Increment --
   ------------------------

   function Get_Step_Increment
     (Adjustment : access Gtk_Adjustment_Record) return Gdouble
   is
      function Internal (Adj : System.Address) return Gdouble;
      pragma Import (C, Internal, "ada_gtk_adjustment_get_step_increment");

   begin
      return Internal (Get_Object (Adjustment));
   end Get_Step_Increment;

   ------------------------
   -- Get_Page_Increment --
   ------------------------

   function Get_Page_Increment
     (Adjustment : access Gtk_Adjustment_Record) return Gdouble
   is
      function Internal (Adj : System.Address) return Gdouble;
      pragma Import (C, Internal, "ada_gtk_adjustment_get_page_increment");

   begin
      return Internal (Get_Object (Adjustment));
   end Get_Page_Increment;

   -------------------
   -- Get_Page_Size --
   -------------------

   function Get_Page_Size
     (Adjustment : access Gtk_Adjustment_Record) return Gdouble
   is
      function Internal (Adj : System.Address) return Gdouble;
      pragma Import (C, Internal, "ada_gtk_adjustment_get_page_size");

   begin
      return Internal (Get_Object (Adjustment));
   end Get_Page_Size;

   ---------------
   -- Get_Value --
   ---------------

   function Get_Value
     (Adjustment : access Gtk_Adjustment_Record) return Gdouble
   is
      function Internal (Adjustment : System.Address) return Gdouble;
      pragma Import (C, Internal, "gtk_adjustment_get_value");

   begin
      return Internal (Get_Object (Adjustment));
   end Get_Value;

   -------------
   -- Gtk_New --
   -------------

   procedure Gtk_New
     (Adjustment     : out Gtk_Adjustment;
      Value          : Gdouble;
      Lower          : Gdouble;
      Upper          : Gdouble;
      Step_Increment : Gdouble;
      Page_Increment : Gdouble;
      Page_Size      : Gdouble) is
   begin
      Adjustment := new Gtk_Adjustment_Record;
      Initialize (Adjustment, Value, Lower, Upper, Step_Increment,
                  Page_Increment, Page_Size);
   end Gtk_New;

   ----------------
   -- Initialize --
   ----------------

   procedure Initialize
     (Adjustment     : access Gtk_Adjustment_Record'Class;
      Value          : Gdouble;
      Lower          : Gdouble;
      Upper          : Gdouble;
      Step_Increment : Gdouble;
      Page_Increment : Gdouble;
      Page_Size      : Gdouble)
   is
      function Internal
        (Value          : Gdouble;
         Lower          : Gdouble;
         Upper          : Gdouble;
         Step_Increment : Gdouble;
         Page_Increment : Gdouble;
         Page_Size      : Gdouble) return System.Address;
      pragma Import (C, Internal, "gtk_adjustment_new");

   begin
      Set_Object (Adjustment,
                  Internal (Value, Lower, Upper, Step_Increment,
                            Page_Increment, Page_Size));
   end Initialize;

   ---------------
   -- Set_Lower --
   ---------------

   procedure Set_Lower
     (Adjustment : access Gtk_Adjustment_Record; Lower : Gdouble)
   is
      procedure Internal (Adj : System.Address; Lower : Gdouble);
      pragma Import (C, Internal, "ada_gtk_adjustment_set_lower");

   begin
      Internal (Get_Object (Adjustment), Lower);
   end Set_Lower;

   ------------------------
   -- Set_Page_Increment --
   ------------------------

   procedure Set_Page_Increment
     (Adjustment     : access Gtk_Adjustment_Record;
      Page_Increment : Gdouble)
   is
      procedure Internal (Adj : System.Address; Value : Gdouble);
      pragma Import (C, Internal, "ada_adjustment_set_page_increment");

   begin
      Internal (Get_Object (Adjustment), Page_Increment);
   end Set_Page_Increment;

   ------------------------
   -- Set_Step_Increment --
   ------------------------

   procedure Set_Step_Increment
     (Adjustment     : access Gtk_Adjustment_Record;
      Step_Increment : Gdouble)
   is
      procedure Internal (Adj : System.Address; Value : Gdouble);
      pragma Import (C, Internal, "ada_adjustment_set_step_increment");

   begin
      Internal (Get_Object (Adjustment), Step_Increment);
   end Set_Step_Increment;

   -------------------
   -- Set_Page_Size --
   -------------------

   procedure Set_Page_Size
     (Adjustment : access Gtk_Adjustment_Record;
      Page_Size  : Gdouble)
   is
      procedure Internal (Adj : System.Address; Value : Gdouble);
      pragma Import (C, Internal, "ada_adjustment_set_page_size");

   begin
      Internal (Get_Object (Adjustment), Page_Size);
   end Set_Page_Size;

   ---------------
   -- Set_Upper --
   ---------------

   procedure Set_Upper
     (Adjustment : access Gtk_Adjustment_Record;
      Upper      : Gdouble)
   is
      procedure Internal (Adj : System.Address; Upper : Gdouble);
      pragma Import (C, Internal, "ada_gtk_adjustment_set_upper");

   begin
      Internal (Get_Object (Adjustment), Upper);
   end Set_Upper;

   ---------------
   -- Set_Value --
   ---------------

   procedure Set_Value
     (Adjustment : access Gtk_Adjustment_Record;
      Value      : Gdouble)
   is
      procedure Internal (Adjustment : System.Address; Value : Gdouble);
      pragma Import (C, Internal, "gtk_adjustment_set_value");

   begin
      Internal (Get_Object (Adjustment), Value);
   end Set_Value;

   -------------
   -- Changed --
   -------------

   procedure Changed (Adjustment : access Gtk_Adjustment_Record) is
      procedure Internal (Adjustment : System.Address);
      pragma Import (C, Internal, "gtk_adjustment_changed");

   begin
      Internal (Get_Object (Adjustment));
   end Changed;

   -------------------
   -- Value_Changed --
   -------------------

   procedure Value_Changed (Adjustment : access Gtk_Adjustment_Record) is
      procedure Internal (Adjustment : System.Address);
      pragma Import (C, Internal, "gtk_adjustment_value_changed");

   begin
      Internal (Get_Object (Adjustment));
   end Value_Changed;

end Gtk.Adjustment;