Gimp/pdb/groups/plug_in_compat.pdb

# GIMP - The GNU 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 3 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, see <https://www.gnu.org/licenses/>.

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


# The declared ranges generate min/max in GParamSpecs
# and the min becomes the default in the GParamSpecs.
# A declared range must correspond with range declared in GEGL
# else args defaulted from min may generate out-of-range warnings.

sub plug_in_autocrop {
    $blurb = 'Remove empty borders from the image';

    $help = <<'HELP';
Remove empty borders from the image.
HELP

    &std_pdb_misc;
    $date = '1997';

    @inargs = (
	{ name => 'run_mode', type => 'enum GimpRunMode', dead => 1,
	  desc => 'The run mode' },
	{ name => 'image', type => 'image',
	  desc => 'Input image)' },
	{ name => 'drawable', type => 'drawable',
	  desc => 'Input drawable' }
    );

    %invoke = (
	code => <<'CODE'
{
  if (gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL,
                                 GIMP_PDB_ITEM_CONTENT, error))
    {
      gint x, y, width, height;
      gint off_x, off_y;

      gimp_pickable_auto_shrink (GIMP_PICKABLE (drawable),
                                 0, 0,
                                 gimp_item_get_width  (GIMP_ITEM (drawable)),
                                 gimp_item_get_height (GIMP_ITEM (drawable)),
                                 &x, &y, &width, &height);

      gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
      x += off_x;
      y += off_y;

      gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_ITEM_RESIZE,
                                   _("Autocrop image"));

      if (x          < 0                             ||
          y          < 0                             ||
          x + width  > gimp_image_get_width  (image) ||
          y + height > gimp_image_get_height (image))
        {
          /*
           * partially outside the image area, we need to
           * resize the image to be able to crop properly.
           */
          gimp_image_resize (image, context, width, height, -x, -y, NULL);

          x = y = 0;
        }

      gimp_image_crop (image, context, GIMP_FILL_TRANSPARENT,
                       x, y, width, height, TRUE);

      gimp_image_undo_group_end (image);
    }
  else
    success = FALSE;
}
CODE
    );
}

sub plug_in_autocrop_layer {
    $blurb = 'Crop the selected layers based on empty borders of the input drawable';

    $help = <<'HELP';
Crop the selected layers of the input "image" based on empty borders of the input "drawable".
\n\nThe input drawable serves as a base for detecting cropping extents (transparency or background color), and is not necessarily among the cropped layers (the current selected layers).
HELP

    &std_pdb_misc;
    $date = '1997';

    @inargs = (
	{ name => 'run_mode', type => 'enum GimpRunMode', dead => 1,
	  desc => 'The run mode' },
	{ name => 'image', type => 'image',
	  desc => 'Input image)' },
	{ name => 'drawable', type => 'drawable',
	  desc => 'Input drawable' }
    );

    %invoke = (
	code => <<'CODE'
{
  if (gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL,
                                 GIMP_PDB_ITEM_CONTENT, error))
    {
      GList *layers = gimp_image_get_selected_layers (image);
      GList *iter;
      gint   x, y, width, height;

      if (layers)
        {
          switch (gimp_pickable_auto_shrink (GIMP_PICKABLE (drawable),
                                             0, 0,
                                             gimp_item_get_width  (GIMP_ITEM (drawable)),
                                             gimp_item_get_height (GIMP_ITEM (drawable)),
                                             &x, &y, &width, &height))
            {
            case GIMP_AUTO_SHRINK_SHRINK:
              gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_ITEM_RESIZE,
                                           _("Autocrop layer"));

              for (iter = layers; iter; iter = iter->next)
                  gimp_item_resize (GIMP_ITEM (iter->data),
                                    context, GIMP_FILL_TRANSPARENT,
                                    width, height, -x, -y);

              gimp_image_undo_group_end (image);
	      break;

	    default:
	      break;
            }
	}
      else
        {
          success = FALSE;
        }
    }
  else
    {
      success = FALSE;
    }
}
CODE
    );
}

@headers = qw("core/gimpimage-crop.h"
              "core/gimpimage-resize.h"
              "core/gimpimage-undo.h"
              "core/gimppickable.h"
              "core/gimppickable-auto-shrink.h"
              "gimppdb-utils.h"
              "gimp-intl.h");

@procs = qw(plug_in_autocrop
            plug_in_autocrop_layer);

%exports = (app => [@procs], lib => []);

$desc = 'Plug-in Compat';
$doc_title = 'gimpplugincompat';
$doc_short_desc = 'Compatibility for removed plug-ins.';
$doc_long_desc = 'Functions that perform the operation of removed plug-ins using GEGL operations or other GIMP internal functions.';

1;