gimp/tools/pdbgen/pdb/palette.pdb

# The GIMP -- an image manipulation program
# Copyright (C) 1995 Spencer Kimball and Peter Mattis

# This program 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 program 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 program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# "Perlized" from C source by Manish Singh <yosh@gimp.org>

sub color_blurb {
    $blurb = "@{[shift]} the current GIMP @{[shift]}ground color.";
}

sub color_arg {
    my $ground = (shift) . "ground";
    {
	name  => $ground,
	type  => 'color',
	desc  => "The $ground color",
	alias => 'col'
    }
}

sub invoke_get {
    %invoke = (
	headers => [ qw("gimpimage.h" "palette.h") ],
	vars => [ 'guchar r, g, b' ],
	code => <<CODE
{
  palette_get_@{[shift]}ground (&r, &g, &b);
  col = (guchar *) g_new (guchar, 3);
  col[RED_PIX] = r;
  col[GREEN_PIX] = g;
  col[BLUE_PIX] = b;
}
CODE
    );
}

sub invoke_set {
    %invoke = (
	headers => [ qw("gimpimage.h") ],
	code => <<CODE
palette_set_@{[shift]}ground (col[RED_PIX], col[GREEN_PIX], col[BLUE_PIX]);
CODE
    );
}

sub palette_get_foreground {
    &color_blurb('Get', 'fore');

    $help = <<'HELP';
This procedure retrieves the current GIMP foreground color. The foreground
color is used in a variety of tools such as paint tools, blending, and bucket
fill.
HELP

    &std_pdb_misc;
    @outargs = ( &color_arg('fore') );
    &invoke_get('fore');
}

sub palette_get_background {
    &color_blurb('Get', 'back');

    $help = <<'HELP';
This procedure retrieves the current GIMP background color. The background
color is used in a variety of tools such as blending, erasing (with non-alpha
images), and image filling.
HELP

    &std_pdb_misc;
    @outargs = ( &color_arg('back') );
    &invoke_get('back');
}

sub palette_set_foreground {
    &color_blurb('Set', 'fore');

    $help = <<'HELP';
This procedure sets the current GIMP foreground color. After this is set,
operations which use foreground such as paint tools, blending, and bucket fill
will use the new value.
HELP

    &std_pdb_misc;
    @inargs = ( &color_arg('fore') );
    &invoke_set('fore');
}

sub palette_set_background {
    &color_blurb('Set', 'back');

    $help = <<'HELP';
This procedure sets the current GIMP background color. After this is set,
operations which use background such as blending, filling images, clearing,
and erasing (in non-alpha images) will use the new value.
HELP

    &std_pdb_misc;
    @inargs = ( &color_arg('back') );
    &invoke_set('back');
}

sub palette_set_default_colors {
    $blurb = <<'BLURB';
Set the current GIMP foreground and background colors to black and white.
BLURB

    $help = <<'HELP';
This procedure sets the current GIMP foreground and background colors to their
initial default values, black and white.
HELP

    &std_pdb_misc;

    %invoke = ( code => 'palette_set_default_colors ();' );
}

sub palette_swap_colors {
    $blurb = 'Swap the current GIMP foreground and background colors.';

    $help = <<'HELP';
This procedure swaps the current GIMP foreground and background colors, so that
the new foreground color becomes the old background color and vice versa.
HELP

    &std_pdb_misc;

    %invoke = ( code => 'palette_swap_colors ();' );
}

sub palette_refresh {
    $blurb = 'Refreshes current palettes.';

    $help = <<'HELP';
This procedure incorporates all palettes currently in the users palette path.
HELP

    $author = 'Adrian Likins <adrian@gimp.org>';
    $copyright = 'Adrian Likins';
    $date = '1998';

    %invoke = (
	code => <<'CODE'
{
  /* FIXME: I've hardcoded success to be TRUE, because brushes_init() is a 
   *        void function right now.  It'd be nice if it returned a value at 
   *        some future date, so we could tell if things blew up when reparsing
   *        the list (for whatever reason). 
   *                       - Seth "Yes, this is a kludge" Burgess
   *                         <sjburges@ou.edu>
   *   -and shamelessly stolen by Adrian Likins for use here...
   */

  palette_free_palettes ();
  palette_init_palettes (FALSE);
}
CODE
    );
}

@headers = qw("palette.h");

@procs = qw(palette_get_foreground palette_get_background
	    palette_set_foreground palette_set_background
	    palette_set_default_colors palette_swap_colors
	    palette_refresh);
%exports = (app => [@procs], lib => [@procs]);

$desc = 'Palette';

1;