File : agpl-bmp-draw.ads


------------------------------------------------------------------------------

--                         ADAGIO - ADALID - AENEA.                         --

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--                            Copyright (C) 2003                            --

--                                 A. Mosteo.                               --

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--  Authors: A. Mosteo. (adagio@mosteo.com)                                 --

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--  $Id: agpl-bmp-draw.ads,v 1.3 2004/03/03 00:06:06 Jano Exp $


--  Drawing inside BMPs


with Agpl.Types.Constants;

package Agpl.Bmp.Draw is

   ------------------------------------------------------------------------

   -- Delete                                                             --

   ------------------------------------------------------------------------

   -- Fills the full BMP

   procedure Delete (
      This  : in out Object; 
      Color : in     Types.RGB_Triplet := Types.Constants.Black);

   ------------------------------------------------------------------------

   -- Circle                                                             --

   ------------------------------------------------------------------------

   procedure Circle (
      This  : in out Object;
      Row   : in     Integer;
      Col   : in     Integer;
      Rad   : in     Natural;
      Color : in     Types.RGB_triplet;
      Fill  : in     Types.RGB_triplet);

   ------------------------------------------------------------------------

   -- Circunference                                                      --

   ------------------------------------------------------------------------

   procedure Circunference (
      This  : in out Object;
      Row   : in     Integer;
      Col   : in     Integer;
      Rad   : in     Natural;
      Color : in     Types.RGB_triplet);
   
   ------------------------------------------------------------------------

   -- Line                                                               --

   ------------------------------------------------------------------------

   -- Bresenham algorithm for line drawing

   procedure Line (
      This   : in out Object;
      R1, C1,
      R2, C2 : in     Integer;
      Color  : in     Types.RGB_Triplet);

   ------------------------------------------------------------------------

   -- Plot                                                               --

   ------------------------------------------------------------------------

   -- Puts a single point

   procedure Plot (
      This  : in out Object;
      Row   : in     Integer;
      Col   : in     Integer;
      Color : in     Types.RGB_Triplet) renames Set_pixel;

private 

   ------------------------------------------------------------------------

   -- Circ                                                               --

   ------------------------------------------------------------------------

   procedure Circ (
      This   : in out Object;
      Row    : in     Integer;
      Col    : in     Integer;
      Rad    : in     Natural;
      Color  : in     Types.RGB_triplet;
      Fill   : in     Boolean := false;
      FColor : in     Types.RGB_triplet := Types.Constants.Black);

end Agpl.Bmp.Draw;