#!/usr/app/bin/perl

eval 'exec /usr/app/bin/perl  -S $0 ${1+"$@"}'
    if 0; # not running under some shell

use Gimp qw(:auto __ N_);
use Gimp::Fu;
use Gimp::Util;
#Gimp::set_trace(TRACE_CALL);

sub my_code {
        my ($image, $drawable, $rad_tog, $pattern, $txt_col) = @_;
	$drawable->has_alpha or die __"You can't run this script without an ALPHA CHANNEL!!";
	my $test = 0;
	$test = $drawable->type_with_alpha;
	if ($test == 5) {
		die __"You can't run this script with an INDEXED image!!";
	} elsif ($test == 3) {
		gimp_convert_rgb ($image);
	}
	my $img = gimp_image_new (100, 100, RGB_IMAGE);
	$drawable->image->selection_all;
	$drawable->edit_copy;
	gimp_selection_none ($image);
	my $layer;
	$layer=$img->layer_new($drawable->width,$drawable->height,$image->layertype(1), __"Text", 100, NORMAL_MODE);
	$layer->drawable_fill(TRANS_IMAGE_FILL);
	$img->add_layer($layer,0);
	$layer->edit_paste(0)->floating_sel_anchor;
	$img->resize($drawable->width,$drawable->height, 0, 0);
	gimp_selection_layer_alpha ($layer);
	gimp_selection_invert ($img);
	gimp_palette_set_background ([255, 255, 255]);
	gimp_edit_fill ($layer, BG_IMAGE_FILL);
	gimp_selection_none ($img);
	gimp_invert ($layer);
	plug_in_gauss_rle ($layer, 2.0, 1, 1);	
	my $bump_lay;
        $bump_lay = $img->layer_new($img->width,$img->height, RGBA_IMAGE, __"Bumpmap", 100, NORMAL_MODE);
        $bump_lay->drawable_fill(BG_IMAGE_FILL);
        $img->add_layer($bump_lay,0);
        if ($rad_tog == 1) {
        	gimp_patterns_set_pattern ($pattern);
        	gimp_bucket_fill ($bump_lay, PATTERN_BUCKET_FILL, NORMAL_MODE, 100, 0, 0, 0, 0);
        } else {
        	gimp_palette_set_background ($txt_col);
        	gimp_edit_fill ($bump_lay, BG_IMAGE_FILL);
        }
        plug_in_bump_map ($img, $bump_lay, $layer, 110.0, 45.0, 4, 0, 0, 0, 0, 1, 0, 0);
        $pattern_mask = gimp_layer_create_mask ($bump_lay, ALPHA_MASK);
        $img->add_layer_mask($bump_lay,$pattern_mask);
        gimp_selection_all ($img);
        gimp_edit_copy ($layer);
        $float = gimp_edit_paste ($pattern_mask, 0);
        gimp_floating_sel_anchor ($float);
        gimp_levels ($pattern_mask, 0, 0, 77, 0.91, 0, 255);
        gimp_image_remove_layer_mask ($img, $bump_lay, APPLY);
        gimp_invert ($layer);
        gimp_image_flatten ($img);
        gimp_convert_indexed ($img, 0, MAKE_PALETTE, 256, 0, 0, "");
        my $new = gimp_image_active_drawable ($img);
        gimp_layer_add_alpha ($new);
        gimp_by_color_select ($new, [255, 255, 255], 55, ADD, 0, 0, 0.0, 0);
        gimp_edit_clear ($new);
        gimp_selection_none ($img);
        return ($img);
}
$help=<<EOF.$help;
This script aims to produce a transparent logo in an indexed image
which is ready to be saved in .gif format. The quality of the
logo is equal to that of flattened .jpg images. If you need a transparent
image containing a logo for your web page, just apply this script over
a drawable with an alpha channel in RGB or GRAY mode. You'll get a transparent
image in indexed mode. You can choose between colour and pattern fill
of your text. Enjoy it!

EOF

register "make_trans_logos",
         "A script to get transparent beveled logos",
         "$help",
         "Michele Gherlone <mikem\@enet.it>",
         "(c) 2000 M. Gherlone",
         "20000123",
         N_"<Image>/Filters/Logulator/Transparent Logo...",
         "*",
         [
           [PF_RADIO	, 'use_a_colour_or_a_pattern_for_text', "The user's choice", 0, [Colour => 0, Pattern => 1]],
           [PF_PATTERN	, 'choose_a_pattern', "Choose the text Pattern", "Wood #1"],
           [PF_COLOUR	, 'choose_a_colour',  "Choose the text Color", [69, 88, 211]],
         ],
         \&my_code;
exit main;