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+# 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>
+
+sub image_select_color {
+ $blurb = <<'BLURB';
+Create a selection by selecting all pixels (in the specified drawable)
+with the same (or similar) color to that specified.
+BLURB
+
+ $help = <<'HELP';
+This tool creates a selection over the specified image. A by-color
+selection is determined by the supplied color under the constraints of
+the current context settings. Essentially, all pixels (in the drawable)
+that have color sufficiently close to the specified color (as
+determined by the threshold and criterion context values) are included
+in the selection. To select transparent regions, the color specified
+must also have minimum alpha.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_antialias(), gimp_context_set_feather(),
+gimp_context_set_feather_radius(), gimp_context_set_sample_merged(),
+gimp_context_set_sample_criterion(), gimp_context_set_sample_threshold(),
+gimp_context_set_sample_transparent().
+
+
+In the case of a merged sampling, the supplied drawable is ignored.
+HELP
+
+ &david_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The affected image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The selection operation' },
+ { name => 'drawable', type => 'drawable',
+ desc => 'The affected drawable' },
+ { name => 'color', type => 'color',
+ desc => 'The color to select' }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ if (pdb_context->sample_merged ||
+ gimp_pdb_item_is_attached (GIMP_ITEM (drawable), image, 0, error))
+ {
+ gimp_channel_select_by_color (gimp_image_get_mask (image), drawable,
+ pdb_context->sample_merged,
+ &color,
+ pdb_context->sample_threshold,
+ pdb_context->sample_transparent,
+ pdb_context->sample_criterion,
+ operation,
+ pdb_context->antialias,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y);
+ }
+ else
+ success = FALSE;
+}
+CODE
+ );
+}
+
+
+sub image_select_contiguous_color {
+ $blurb = <<'BLURB';
+Create a selection by selecting all pixels around specified coordinates
+with the same (or similar) color to that at the coordinates.
+BLURB
+
+ $help = <<'HELP';
+This tool creates a contiguous selection over the specified image. A
+contiguous color selection is determined by a seed fill under the
+constraints of the current context settings. Essentially, the color
+at the specified coordinates (in the drawable) is measured and the
+selection expands outwards from that point to any adjacent pixels
+which are not significantly different (as determined by the threshold
+and criterion context settings). This process continues until no more
+expansion is possible. If antialiasing is turned on, the final
+selection mask will contain intermediate values based on close misses
+to the threshold bar at pixels along the seed fill boundary.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_antialias(), gimp_context_set_feather(),
+gimp_context_set_feather_radius(), gimp_context_set_sample_merged(),
+gimp_context_set_sample_criterion(), gimp_context_set_sample_threshold(),
+gimp_context_set_sample_transparent(), gimp_context_set_diagonal_neighbors().
+
+
+In the case of a merged sampling, the supplied drawable is ignored.
+If the sample is merged, the specified coordinates are relative to the
+image origin; otherwise, they are relative to the drawable's origin.
+HELP
+
+ &david_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The affected image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The selection operation' },
+ { name => 'drawable', type => 'drawable',
+ desc => 'The affected drawable' },
+ { name => 'x', type => 'float',
+ desc => 'x coordinate of initial seed fill point: (image
+ coordinates)' },
+ { name => 'y', type => 'float',
+ desc => 'y coordinate of initial seed fill point: (image
+ coordinates)' }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ if (pdb_context->sample_merged ||
+ gimp_pdb_item_is_attached (GIMP_ITEM (drawable), image, 0, error))
+ {
+
+ gimp_channel_select_fuzzy (gimp_image_get_mask (image),
+ drawable,
+ pdb_context->sample_merged,
+ x, y,
+ pdb_context->sample_threshold,
+ pdb_context->sample_transparent,
+ pdb_context->sample_criterion,
+ pdb_context->diagonal_neighbors,
+ operation,
+ pdb_context->antialias,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y);
+ }
+ else
+ success = FALSE;
+}
+CODE
+ );
+}
+
+
+sub image_select_rectangle {
+ $blurb = 'Create a rectangular selection over the specified image;';
+
+ $help = <<'HELP';
+This tool creates a rectangular selection over the specified
+image. The rectangular region can be either added to, subtracted from,
+or replace the contents of the previous selection mask.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_feather(), gimp_context_set_feather_radius().
+HELP
+
+ &mitch_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The selection operation' },
+ { name => 'x', type => 'float',
+ desc => 'x coordinate of upper-left corner of rectangle' },
+ { name => 'y', type => 'float',
+ desc => 'y coordinate of upper-left corner of rectangle' },
+ { name => 'width', type => '0 < float',
+ desc => 'The width of the rectangle' },
+ { name => 'height', type => '0 < float',
+ desc => 'The height of the rectangle' }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ gimp_channel_select_rectangle (gimp_image_get_mask (image),
+ (gint) x, (gint) y,
+ (gint) width, (gint) height,
+ operation,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y,
+ TRUE);
+}
+CODE
+ );
+}
+
+
+sub image_select_round_rectangle {
+ $blurb = 'Create a rectangular selection with round corners over the specified image;';
+
+ $help = <<'HELP';
+This tool creates a rectangular selection with round corners over the
+specified image. The rectangular region can be either added to,
+subtracted from, or replace the contents of the previous selection
+mask.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_antialias(), gimp_context_set_feather(),
+gimp_context_set_feather_radius().
+HELP
+
+ &martin_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The selection operation' },
+ { name => 'x', type => 'float',
+ desc => 'x coordinate of upper-left corner of rectangle' },
+ { name => 'y', type => 'float',
+ desc => 'y coordinate of upper-left corner of rectangle' },
+ { name => 'width', type => '0 < float',
+ desc => 'The width of the rectangle' },
+ { name => 'height', type => '0 < float',
+ desc => 'The height of the rectangle' },
+ { name => 'corner_radius_x', type => '0 < float < GIMP_MAX_IMAGE_SIZE',
+ desc => 'The corner radius in X direction' },
+ { name => 'corner_radius_y', type => '0 < float < GIMP_MAX_IMAGE_SIZE',
+ desc => 'The corner radius in Y direction' }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ gimp_channel_select_round_rect (gimp_image_get_mask (image),
+ (gint) x, (gint) y,
+ (gint) width, (gint) height,
+ corner_radius_x,
+ corner_radius_y,
+ operation,
+ pdb_context->antialias,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y,
+ TRUE);
+}
+CODE
+ );
+}
+
+
+sub image_select_ellipse {
+ $blurb = 'Create an elliptical selection over the specified image.';
+
+ $help = <<'HELP';
+This tool creates an elliptical selection over the specified
+image. The elliptical region can be either added to, subtracted from,
+or replace the contents of the previous selection mask.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_antialias(), gimp_context_set_feather(),
+gimp_context_set_feather_radius().
+HELP
+
+ &mitch_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The selection operation' },
+ { name => 'x', type => 'float',
+ desc => 'x coordinate of upper-left corner of ellipse bounding box' },
+ { name => 'y', type => 'float',
+ desc => 'y coordinate of upper-left corner of ellipse bounding box' },
+ { name => 'width', type => '0 < float',
+ desc => 'The width of the ellipse' },
+ { name => 'height', type => '0 < float',
+ desc => 'The height of the ellipse' }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ gimp_channel_select_ellipse (gimp_image_get_mask (image),
+ (gint) x, (gint) y,
+ (gint) width, (gint) height,
+ operation,
+ pdb_context->antialias,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y,
+ TRUE);
+}
+CODE
+ );
+}
+
+
+sub image_select_polygon {
+ $blurb = 'Create a polygonal selection over the specified image.';
+
+ $help = <<'HELP';
+This tool creates a polygonal selection over the specified image. The
+polygonal region can be either added to, subtracted from, or replace
+the contents of the previous selection mask. The polygon is specified
+through an array of floating point numbers and its length. The length
+of array must be 2n, where n is the number of points. Each point is
+defined by 2 floating point values which correspond to the x and y
+coordinates. If the final point does not connect to the starting
+point, a connecting segment is automatically added.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_antialias(), gimp_context_set_feather(),
+gimp_context_set_feather_radius().
+HELP
+
+ &mitch_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The selection operation' },
+ { name => 'segs', type => 'floatarray',
+ desc => 'Array of points: { p1.x, p1.y, p2.x, p2.y, ...,
+ pn.x, pn.y}',
+ array => { type => '2 <= int32',
+ desc => 'Number of points (count 1 coordinate as two
+ points)' } }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ gimp_channel_select_polygon (gimp_image_get_mask (image),
+ _("Free Select"),
+ num_segs / 2,
+ (GimpVector2 *) segs,
+ operation,
+ pdb_context->antialias,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y,
+ TRUE);
+}
+CODE
+ );
+}
+
+
+sub image_select_item {
+ $blurb = 'Transforms the specified item into a selection';
+
+ $help = <<'HELP';
+This procedure renders the item's outline into the current selection
+of the image the item belongs to. What exactly the item's outline is
+depends on the item type: for layers, it's the layer's alpha channel,
+for vectors the vector's shape.
+
+
+This procedure is affected by the following context setters:
+gimp_context_set_antialias(), gimp_context_set_feather(),
+gimp_context_set_feather_radius().
+HELP
+
+ &mitch_pdb_misc('2010', '2.8');
+
+ @inargs = (
+ { name => 'image', type => 'image',
+ desc => 'The image' },
+ { name => 'operation', type => 'enum GimpChannelOps',
+ desc => 'The desired operation with current selection' },
+ { name => 'item', type => 'item',
+ desc => 'The item to render to the selection' }
+ );
+
+ %invoke = (
+ code => <<'CODE'
+{
+ if (gimp_pdb_item_is_attached (item, image, 0, error))
+ {
+ GimpPDBContext *pdb_context = GIMP_PDB_CONTEXT (context);
+
+ gimp_item_to_selection (item, operation,
+ pdb_context->antialias,
+ pdb_context->feather,
+ pdb_context->feather_radius_x,
+ pdb_context->feather_radius_y);
+ }
+ else
+ success = FALSE;
+}
+CODE
+ );
+
+}
+
+
+@headers = qw("libgimpbase/gimpbase.h"
+ "core/gimpchannel-select.h"
+ "gimppdb-utils.h"
+ "gimppdbcontext.h"
+ "gimp-intl.h");
+
+@procs = qw(image_select_color
+ image_select_contiguous_color
+ image_select_rectangle
+ image_select_round_rectangle
+ image_select_ellipse
+ image_select_polygon
+ image_select_item);
+
+%exports = (app => [@procs], lib => [@procs]);
+
+$desc = 'Selection procedures';
+$doc_title = 'gimpimageselect';
+$doc_short_desc = "Modify the image's selection.";
+$doc_long_desc = "Functions to modify the image's selection.";
+
+1;