4d3b52ec6c
This was actually documented to be the return value of all transform procedures since 1.2, but it was always broken and returned the passed-in drawable. Therefore it's only fixed for the new item API, the old procedures keep their semantics (and will all be deprecated anyway).
455 lines
14 KiB
Text
455 lines
14 KiB
Text
# GIMP - The GNU Image Manipulation Program
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# Copyright (C) 1995 Spencer Kimball and Peter Mattis
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# "Perlized" from C source by Manish Singh <yosh@gimp.org>
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sub flip {
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&std_pdb_deprecated ('gimp-drawable-transform-flip-simple');
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@inargs = (
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{ name => 'drawable', type => 'drawable',
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desc => 'The affected drawable' },
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{ name => 'flip_type',
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type => 'enum GimpOrientationType (no GIMP_ORIENTATION_UNKNOWN)',
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desc => 'Type of flip' }
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);
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@outargs = (
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{ name => 'drawable', type => 'drawable', no_declare => 1,
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desc => 'The flipped drawable' }
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);
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%invoke = (
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code => <<'CODE'
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{
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gint x, y, width, height;
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success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
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if (success &&
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gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
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{
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gdouble axis;
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gimp_transform_get_flip_axis (x, y, width, height,
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flip_type, TRUE, &axis);
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if (! gimp_drawable_transform_flip (drawable, context,
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flip_type, axis, FALSE))
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{
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success = FALSE;
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}
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}
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}
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CODE
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);
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}
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sub perspective {
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&std_pdb_deprecated ('gimp-drawable-transform-perspective-default');
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@inargs = (
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{ name => 'drawable', type => 'drawable',
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desc => 'The affected drawable' },
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{ name => 'interpolation', type => 'boolean',
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desc => 'Whether to use interpolation' },
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{ name => 'x0', type => 'float',
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desc => 'The new x coordinate of upper-left corner of original
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bounding box' },
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{ name => 'y0', type => 'float',
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desc => 'The new y coordinate of upper-left corner of original
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bounding box' },
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{ name => 'x1', type => 'float',
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desc => 'The new x coordinate of upper-right corner of original
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bounding box' },
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{ name => 'y1', type => 'float',
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desc => 'The new y coordinate of upper-right corner of original
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bounding box' },
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{ name => 'x2', type => 'float',
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desc => 'The new x coordinate of lower-left corner of original
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bounding box' },
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{ name => 'y2', type => 'float',
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desc => 'The new y coordinate of lower-left corner of original
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bounding box' },
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{ name => 'x3', type => 'float',
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desc => 'The new x coordinate of lower-right corner of original
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bounding box' },
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{ name => 'y3', type => 'float',
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desc => 'The new y coordinate of lower-right corner of original
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bounding box' }
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);
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@outargs = (
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{ name => 'drawable', type => 'drawable', no_declare => 1,
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desc => 'The newly mapped drawable' }
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);
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%invoke = (
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code => <<'CODE'
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{
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gint x, y, width, height;
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success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
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if (success &&
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gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
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{
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GimpMatrix3 matrix;
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GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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x += off_x;
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y += off_y;
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/* Assemble the transformation matrix */
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gimp_matrix3_identity (&matrix);
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gimp_transform_matrix_perspective (&matrix,
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x, y, width, height,
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x0, y0, x1, y1,
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x2, y2, x3, y3);
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if (interpolation)
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interpolation_type = gimp->config->interpolation_type;
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if (progress)
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gimp_progress_start (progress, _("Perspective"), FALSE);
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if (! gimp_drawable_transform_affine (drawable, context,
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&matrix,
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GIMP_TRANSFORM_FORWARD,
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interpolation_type, 3,
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FALSE, progress))
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{
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success = FALSE;
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}
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if (progress)
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gimp_progress_end (progress);
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}
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}
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CODE
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);
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}
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sub rotate {
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&std_pdb_deprecated ('gimp-drawable-transform-rotate-default');
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@inargs = (
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{ name => 'drawable', type => 'drawable',
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desc => 'The affected drawable' },
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{ name => 'interpolation', type => 'boolean',
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desc => 'Whether to use interpolation' },
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{ name => 'angle', type => 'float',
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desc => 'The angle of rotation (radians)' }
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);
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@outargs = (
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{ name => 'drawable', type => 'drawable', no_declare => 1,
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desc => 'The rotated drawable' }
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);
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%invoke = (
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code => <<'CODE'
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{
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gint x, y, width, height;
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success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
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if (success &&
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gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
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{
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GimpMatrix3 matrix;
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GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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x += off_x;
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y += off_y;
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/* Assemble the transformation matrix */
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gimp_matrix3_identity (&matrix);
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gimp_transform_matrix_rotate_rect (&matrix,
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x, y, width, height,
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angle);
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if (interpolation)
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interpolation_type = gimp->config->interpolation_type;
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if (progress)
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gimp_progress_start (progress, _("Rotating"), FALSE);
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if (! gimp_drawable_transform_affine (drawable, context,
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&matrix,
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GIMP_TRANSFORM_FORWARD,
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interpolation_type, 3,
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FALSE, progress))
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{
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success = FALSE;
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}
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if (progress)
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gimp_progress_end (progress);
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}
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}
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CODE
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);
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}
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sub scale {
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&std_pdb_deprecated ('gimp-drawable-transform-scale-default');
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@inargs = (
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{ name => 'drawable', type => 'drawable',
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desc => 'The affected drawable' },
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{ name => 'interpolation', type => 'boolean',
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desc => 'Whether to use interpolation' },
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{ name => 'x0', type => 'float',
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desc => 'The new x coordinate of the upper-left corner of the
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scaled region' },
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{ name => 'y0', type => 'float',
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desc => 'The new y coordinate of the upper-left corner of the
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scaled region' },
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{ name => 'x1', type => 'float',
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desc => 'The new x coordinate of the lower-right corner of the
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scaled region' },
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{ name => 'y1', type => 'float',
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desc => 'The new y coordinate of the lower-right corner of the
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scaled region' }
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);
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@outargs = (
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{ name => 'drawable', type => 'drawable', no_declare => 1,
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desc => 'The scaled drawable' }
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);
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%invoke = (
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code => <<'CODE'
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{
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gint x, y, width, height;
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success = (gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error) &&
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x0 < x1 && y0 < y1);
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if (success &&
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gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
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{
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GimpMatrix3 matrix;
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GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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x += off_x;
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y += off_y;
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/* Assemble the transformation matrix */
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gimp_matrix3_identity (&matrix);
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gimp_transform_matrix_scale (&matrix,
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x, y, width, height,
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x0, y0, x1 - x0, y1 - y0);
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if (interpolation)
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interpolation_type = gimp->config->interpolation_type;
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if (progress)
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gimp_progress_start (progress, _("Scaling"), FALSE);
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if (! gimp_drawable_transform_affine (drawable, context,
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&matrix,
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GIMP_TRANSFORM_FORWARD,
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interpolation_type, 3,
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FALSE, progress))
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{
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success = FALSE;
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}
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if (progress)
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gimp_progress_end (progress);
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}
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}
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CODE
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);
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}
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sub shear {
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&std_pdb_deprecated ('gimp-drawable-transform-shear-default');
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@inargs = (
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{ name => 'drawable', type => 'drawable',
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desc => 'The affected drawable' },
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{ name => 'interpolation', type => 'boolean',
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desc => 'Whether to use interpolation' },
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{ name => 'shear_type',
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type => 'enum GimpOrientationType (no GIMP_ORIENTATION_UNKNOWN)',
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desc => 'Type of shear' },
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{ name => 'magnitude', type => 'float',
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desc => 'The magnitude of the shear' }
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);
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@outargs = (
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{ name => 'drawable', type => 'drawable', no_declare => 1,
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desc => 'The sheared drawable' }
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);
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%invoke = (
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code => <<'CODE'
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{
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gint x, y, width, height;
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success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
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if (success &&
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gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
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{
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GimpMatrix3 matrix;
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GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
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x += off_x;
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y += off_y;
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/* Assemble the transformation matrix */
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gimp_matrix3_identity (&matrix);
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gimp_transform_matrix_shear (&matrix,
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x, y, width, height,
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shear_type, magnitude);
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if (interpolation)
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interpolation_type = gimp->config->interpolation_type;
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if (progress)
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gimp_progress_start (progress, _("Shearing"), FALSE);
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if (! gimp_drawable_transform_affine (drawable, context,
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&matrix,
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GIMP_TRANSFORM_FORWARD,
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interpolation_type, 3,
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FALSE, progress))
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{
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success = FALSE;
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}
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if (progress)
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gimp_progress_end (progress);
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}
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}
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CODE
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);
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}
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sub transform_2d {
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&std_pdb_deprecated ('gimp-drawable-transform-2d-default');
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@inargs = (
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{ name => 'drawable', type => 'drawable',
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desc => 'The affected drawable' },
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{ name => 'interpolation', type => 'boolean',
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desc => 'Whether to use interpolation' },
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{ name => 'source_x', type => 'float',
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desc => 'X coordinate of the transformation center' },
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{ name => 'source_y', type => 'float',
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desc => 'Y coordinate of the transformation center' },
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{ name => 'scale_x', type => 'float',
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desc => 'Amount to scale in x direction' },
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{ name => 'scale_y', type => 'float',
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desc => 'Amount to scale in y direction' },
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{ name => 'angle', type => 'float',
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desc => 'The angle of rotation (radians)' },
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{ name => 'dest_x', type => 'float',
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desc => 'X coordinate of where the centre goes' },
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{ name => 'dest_y', type => 'float',
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desc => 'Y coordinate of where the centre goes' }
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);
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@outargs = (
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{ name => 'drawable', type => 'drawable', no_declare => 1,
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desc => 'The transformed drawable' }
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);
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%invoke = (
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code => <<'CODE'
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{
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gint x, y, width, height;
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success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
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if (success &&
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gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
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{
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GimpMatrix3 matrix;
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GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
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/* Assemble the transformation matrix */
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gimp_matrix3_identity (&matrix);
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gimp_matrix3_translate (&matrix, -source_x, -source_y);
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gimp_matrix3_scale (&matrix, scale_x, scale_y);
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gimp_matrix3_rotate (&matrix, angle);
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gimp_matrix3_translate (&matrix, dest_x, dest_y);
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if (interpolation)
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interpolation_type = gimp->config->interpolation_type;
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if (progress)
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gimp_progress_start (progress, _("2D Transform"), FALSE);
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if (! gimp_drawable_transform_affine (drawable, context,
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&matrix, GIMP_TRANSFORM_FORWARD,
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interpolation_type, 3,
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FALSE, progress))
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{
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success = FALSE;
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}
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if (progress)
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gimp_progress_end (progress);
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}
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}
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CODE
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);
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}
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@headers = qw("libgimpmath/gimpmath.h"
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"config/gimpcoreconfig.h"
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"core/gimp.h"
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"core/gimp-transform-utils.h"
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"core/gimpimage.h"
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"core/gimpdrawable.h"
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"core/gimpdrawable-transform.h"
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"core/gimpprogress.h"
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"gimppdb-utils.h"
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"gimp-intl.h");
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@procs = qw(flip
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perspective
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rotate
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scale
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shear
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transform_2d);
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%exports = (app => [@procs], lib => [@procs]);
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$desc = 'Transform Tool procedures';
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$doc_title = 'gimptransformtools';
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$doc_short_desc = 'Access to toolbox transform tools.';
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$doc_long_desc = 'Functions giving access to toolbox transform tools.';
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1;
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