# 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.

sub shlomi_misc {
    $author = $copyright = 'Shlomi Fish';
    $date   = '2003';
    $since  = '2.2';
}

sub federico_misc {
    $author = $copyright = 'Federico Mena Quintero';
    $date   = '1997';
    $since  = '2.2';
}

sub gradient_arg () {{
    name => 'name',
    type => 'string',
    desc => 'The gradient name'
}}

sub _gen_gradient_search_for_segment_code
{
    my $action_on_success = shift;

    chomp $action_on_success;

    $action_on_success =~ /^(\s*)/;
    my $indent = $1;

    $action_on_success =~ s/^$indent/' ' x 10/meg;

    return <<"CODE";
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient)
    {
      GimpGradientSegment *seg;

      seg = gimp_gradient_segment_get_nth (gradient->segments, segment);

      if (seg)
        {
$action_on_success
        }
      else
        success = FALSE;
    }
  else
    success = FALSE;
}

CODE
}

sub other_side
{
    my $side = shift;

    return ($side eq "left") ? "right" : "left";
}

sub _grad_and_seg_params
{
    return
        ( &gradient_arg,
          { name => 'segment', type => '0 <= int32',
            desc => 'The index of the segment within the gradient' }
        );
}

sub _gen_gradient_set_side_color
{
    my $side = shift;

    my $other_side = other_side($side);

    $blurb = "Retrieves the $side endpoint color of the specified gradient and segment";

    $help = <<"HELP";
This procedure retrieves the $side endpoint color of the specified segment of
the specified gradient.
HELP

    &shlomi_misc;

    @inargs = (
        &_grad_and_seg_params,
        { name => 'color', type => 'color',
          desc => "The color to set" },
        { name => "opacity", type => '0 <= float <= 100.0',
          desc => "The opacity to set for the endpoint" }
    );

    @outargs = (
    );

    my @blend_params = ("&color","&(seg->${other_side}_color)");

    if ($side eq "right") {
        @blend_params = reverse(@blend_params);
    }

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => &_gen_gradient_search_for_segment_code(<<"CODE"),
color.a = opacity / 100.0;
gimp_gradient_segment_set_${side}_color (gradient, seg, &color);
CODE
    );
}

sub _gen_gradient_get_side_color
{
    my $side = shift;

    $blurb = "Retrieves the $side endpoint color of the specified gradient and segment";

    $help = <<"HELP";
This procedure retrieves the $side endpoint color of the specified segment of
the specified gradient.
HELP

    &shlomi_misc;

    @inargs = (
        &_grad_and_seg_params,
    );

    @outargs = (
        { name => 'color', type => 'color',
          desc => "The return color", void_ret => 1, init => 1 },
        { name => "opacity", type => 'float', init => 1,
          desc => "The opacity of the endpoint" }
    );

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => &_gen_gradient_search_for_segment_code(<<"CODE"),
gimp_gradient_segment_get_${side}_color (gradient, seg, &color);
opacity = color.a * 100.0;
CODE
    );
}

sub _gen_gradient_get_pos
{
    my $side = shift;

    my $side_endpoint =
        (($side eq "middle") ?
            "middle point" :
            "$side endpoint"
        );

    $blurb = "Retrieves the $side_endpoint position of the specified gradient and segment";

    $help = <<"HELP";
This procedure retrieves the $side_endpoint position of the specified segment of
the specified gradient.
HELP

    &shlomi_misc;

    @inargs = &_grad_and_seg_params;

    @outargs = (
        { name => 'pos', type => 'float',
          desc => "The return position", void_ret => 1, init => 1 }
    );

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => &_gen_gradient_search_for_segment_code(<<"CODE"),
pos = gimp_gradient_segment_get_${side}_pos (gradient, seg);
CODE
    );
}

sub _gen_gradient_set_pos
{
    my $side = shift;

    my $side_endpoint =
        (($side eq "middle") ?
            "middle point" :
            "$side endpoint"
        );

    $blurb = "Sets the $side_endpoint position of the specified gradient and segment";

    my %betweens =
    (
        'left' =>  ("the position of the middle point to the left to " .
                   "the middle point of the current segement"),
        'right' => ("the position of the middle point of the current " .
                    "segment and the middle point of the segment to " .
                    "the right"),
        'middle' => ("the two endpoints of the segment"),
    );

    $help = <<"HELP";
This procedure sets the $side_endpoint position of the specified segment of
the specified gradient. The final position will be between $betweens{$side}.

This procedure returns the final position.
HELP

    &shlomi_misc;

    @inargs = (
        &_grad_and_seg_params,
        { name => 'pos', type => "0.0 <= float <= 1.0",
          desc => "The position to set the guidepoint in." }
    );

    @outargs = (
        { name => 'final_pos', type => 'float',
          desc => "The return position", void_ret => 1, init => 1 }
    );

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => &_gen_gradient_search_for_segment_code(<<"CODE"),
final_pos =
  gimp_gradient_segment_set_${side}_pos (gradient, seg, pos);
CODE
    );
}


# The defs

sub gradient_new {
    $blurb = "Creates a new gradient";
    $help  = "This procedure creates a new, uninitialized gradient";

    &shlomi_misc;

    @inargs = (
	{ name => 'name', type => 'string',
	  desc => 'The requested name of the new gradient' }
    );

    @outargs = (
	{ name => 'name', type => 'string',
	  desc => 'The actual new gradient name',
	  alias => 'g_strdup (GIMP_OBJECT (data)->name)', no_declare => 1 },
    );

    %invoke = (
        vars => [ 'GimpData *data = NULL'],
        code => <<'CODE'
{
  if (strlen (name))
    data = gimp_data_factory_data_new (gimp->gradient_factory, name);

  success = (data != NULL);
}
CODE
    );
}

sub gradient_duplicate {
    $blurb = "Duplicates a gradient";
    $help  = "This procedure creates an identical gradient by a different name";

    &shlomi_misc;

    @inargs = (
        &gradient_arg
    );

    @outargs = (
	{ name => 'name', type => 'string',
	  desc => "The name of the gradient's copy",
	  alias => 'g_strdup (GIMP_OBJECT (gradient_copy)->name)',
          no_declare => 1 }
    );

    %invoke = (
	vars => [ 'GimpGradient *gradient = NULL',
                  'GimpGradient *gradient_copy = NULL' ],
        code => <<"CODE"
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient)
    {
      gradient_copy = (GimpGradient *)
        gimp_data_factory_data_duplicate (gimp->gradient_factory,
                                          GIMP_DATA (gradient));

      success = (gradient_copy != NULL);
    }
  else
    success = FALSE;
}
CODE
    );
}

sub gradient_rename {
    $blurb = "Rename a gradient";
    $help  = "This procedure renames a gradient";

    &shlomi_misc;

    @inargs = (
        &gradient_arg,
        { name => 'new_name', type => 'string',
          desc => "The new name of the gradient" }
    );

    @outargs = (
	{ name => 'name', type => 'string',
	  desc => "The actual new name of the gradient",
	  alias => 'g_strdup (GIMP_OBJECT (gradient)->name)', no_declare => 1 }
    );

    %invoke = (
	vars => [ 'GimpGradient *gradient = NULL' ],
	code => <<"CODE"
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient && GIMP_DATA (gradient)->writable)
    gimp_object_set_name (GIMP_OBJECT (gradient), new_name);
  else
    success = FALSE;
}
CODE
    );
}

sub gradient_delete {
    $blurb = "Deletes a gradient";
    $help  = "This procedure deletes a gradient";

    &shlomi_misc;

    @inargs = (
        &gradient_arg
    );

    %invoke = (
	vars => [ 'GimpGradient *gradient = NULL' ],
	code => <<"CODE"
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient && GIMP_DATA (gradient)->deletable)
    {
      GError *error = NULL;

      success = gimp_data_factory_data_delete (gimp->gradient_factory,
                                               GIMP_DATA (gradient),
                                               TRUE, &error);

      if (! success)
        {
          g_message (error->message);
          g_clear_error (&error);
        }
    }
  else
    success = FALSE;
}
CODE
    );
}

sub sample_num_arg {
    { name => 'num_samples', type => $_[0] . 'int32',
      desc => 'The number of samples to take' }
}

sub reverse_arg {
    { name => 'reverse', type => 'boolean',
      desc => 'Use the reverse gradient (%%desc%%)' }
}

sub sample_outargs {
    @outargs = (
        { name => 'color_samples', type => 'floatarray', init => 1,
          void_ret => 1,
	  desc => 'Color samples: { R1, G1, B1, A1, ..., Rn, Gn, Bn, An }',
	  array => { init => 1,
                     desc => 'Length of the color_samples array (4 *
			      num_samples)' } }
    );
}

sub gradient_get_uniform_samples {
    $blurb = 'Sample the specified in uniform parts.';

    $help = <<'HELP';
This procedure samples the active gradient in the
specified number of uniform parts. It returns a list of floating-point values
which correspond to the RGBA values for each sample. The minimum number of
samples to take is 2, in which case the returned colors will correspond to the
{ 0.0, 1.0 } positions in the gradient. For example, if the number of samples
is 3, the procedure will return the colors at positions { 0.0, 0.5, 1.0 }.
HELP

    &federico_misc;

    @inargs = (
         &gradient_arg,
	 &sample_num_arg('2 <= '),
	 &reverse_arg
    );

    &sample_outargs;

    %invoke = (
	vars => [ 'GimpGradient *gradient' ],
	code => <<'CODE'
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient)
    {
      gdouble  pos   = 0.0;
      gdouble  delta = 1.0 / (num_samples - 1);
      gdouble *sample;

      num_color_samples = num_samples * 4;

      sample = color_samples = g_new (gdouble, num_color_samples);

      while (num_samples--)
        {
          GimpRGB color;

          gimp_gradient_get_color_at (gradient, pos, reverse, &color);

          *sample++ = color.r;
          *sample++ = color.g;
          *sample++ = color.b;
          *sample++ = color.a;

          pos += delta;
        }
    }
  else
    success = FALSE;
}
CODE
    );
}

sub gradient_get_custom_samples {
    $blurb = 'Sample the spacified gradient in custom positions.';

    $help = <<'HELP';
This procedure samples the active gradient in the specified number of
points. The procedure will sample the gradient in the specified
positions from the list. The left endpoint of the gradient corresponds
to position 0.0, and the right endpoint corresponds to 1.0. The
procedure returns a list of floating-point values which correspond to
the RGBA values for each sample.
HELP

    &federico_misc;

    @inargs = (
         &gradient_arg,
	{ name  => 'positions',
	  type  => 'floatarray',
	  desc  => 'The list of positions to sample along the gradient',
	  alias => 'pos',
	  array => &sample_num_arg("") },
	&reverse_arg
    );

    &sample_outargs;

    %invoke = (
	vars => [ 'GimpGradient *gradient' ],
	code => <<'CODE'
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient)
    {
      gdouble *sample;

      num_color_samples = num_samples * 4;

      sample = color_samples = g_new (gdouble, num_color_samples);

      while (num_samples--)
        {
          GimpRGB color;

          gimp_gradient_get_color_at (gradient, *pos, reverse, &color);

          *sample++ = color.r;
          *sample++ = color.g;
          *sample++ = color.b;
          *sample++ = color.a;

          pos++;
        }
    }
  else
    success = FALSE;
}
CODE
    );
}

sub gradient_segment_get_left_color
{
    &_gen_gradient_get_side_color("left");
}

sub gradient_segment_get_right_color
{
    &_gen_gradient_get_side_color("right");
}

sub gradient_segment_set_left_color
{
    &_gen_gradient_set_side_color("left");
}

sub gradient_segment_set_right_color
{
    &_gen_gradient_set_side_color("right");
}

sub gradient_segment_get_left_pos
{
    &_gen_gradient_get_pos("left");
}

sub gradient_segment_get_right_pos
{
    &_gen_gradient_get_pos("right");
}

sub gradient_segment_get_middle_pos
{
    &_gen_gradient_get_pos("middle");
}

sub gradient_segment_set_left_pos
{
    &_gen_gradient_set_pos("left");
}

sub gradient_segment_set_right_pos
{
    &_gen_gradient_set_pos("right");
}

sub gradient_segment_set_middle_pos
{
    &_gen_gradient_set_pos("middle");
}

sub gradient_segment_get_blending_function
{
    $blurb = "Retrieves the gradient segment's blending function";

    $help = <<'HELP';
This procedure retrieves the blending function of the segment at the
specified gradient name and segment index.
HELP

    &shlomi_misc;

    @inargs = &_grad_and_seg_params;

    @outargs = (
        { name => 'blend_func', type => 'enum GimpGradientSegmentType',
          desc => "The blending function of the segment: { %%desc%% }",
          void_ret => 1, init => 1 }
    );

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => &_gen_gradient_search_for_segment_code(<<"CODE"),
blend_func =
  gimp_gradient_segment_get_blending_function (gradient, seg);
CODE
    );
}

sub gradient_segment_get_coloring_type
{
    $blurb = "Retrieves the gradient segment's coloring type";

    $help = <<'HELP';
This procedure retrieves the coloring type of the segment at the
specified gradient name and segment index.
HELP

    &shlomi_misc;

    @inargs = &_grad_and_seg_params;

    @outargs = (
        { name => 'coloring_type', type => 'enum GimpGradientSegmentColor',
          desc => "The coloring type of the segment: { %%desc%% }",
          void_ret => 1, init => 1 }
    );

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => &_gen_gradient_search_for_segment_code(<<"CODE"),
coloring_type =
  gimp_gradient_segment_get_coloring_type (gradient, seg);
CODE
    );
}

sub _gen_gradient_operate_on_segments_range
{
    my %args = (@_);

    $blurb = $args{blurb};

    $help = $args{help};

    &shlomi_misc;

    @inargs = (
        &gradient_arg,
        { name => 'start_segment', type => '0 <= int32',
          desc => 'The index of the first segment to operate on' },
        { name => 'end_segment', type => 'int32',
          desc => 'The index of the last segment to operate on. If negative, the selection will extend to the end of the string.' },
        @{$args{inargs}},
    );

    @outargs = @{$args{outargs}};

    my $action_on_success = $args{action_on_success};
    chomp $action_on_success;

    $action_on_success =~ /^(\s*)/;
    my $indent = $1;

    $action_on_success =~ s/^$indent/' ' x 14/meg;

    %invoke = (
        vars => [ 'GimpGradient *gradient = NULL' ],
        code => <<"CODE",
{
  gradient = (GimpGradient *)
    gimp_container_get_child_by_name (gimp->gradient_factory->container, name);

  if (gradient)
    {
      GimpGradientSegment *start_seg, *end_seg;
      start_seg = gimp_gradient_segment_get_nth (gradient->segments,
                                                 start_segment);
      if (start_seg)
        {
          if ((end_segment < start_segment) && (end_segment >= 0))
            {
              /* Do Nothing */
              success = FALSE;
            }
          else
            {
              if (end_segment < 0)
                {
                  end_seg = NULL;
                }
              else
                {
                  end_seg = gimp_gradient_segment_get_nth (start_seg,
                                                           end_segment -
                                                           start_segment);
                }

              /* Success */
$action_on_success
            }
        }
      else
        {
          success = FALSE;
        }
    }
}
CODE
    );
}

sub gradient_segment_range_set_blending_function
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Change the blending function of a segments range",
        'help' => <<'HELP',
This function changes the blending function of a segment range to the
specified blending function.
HELP
        'inargs' => [
             { name => "blending_function",
               type => 'enum GimpGradientSegmentType',
               desc => "The Blending Function: { %%desc%% }" }
        ],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_set_blending_function (gradient,
                                                   start_seg,
                                                   end_seg,
                                                   blending_function);
CODE
    );
}

sub gradient_segment_range_set_coloring_type
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Change the coloring type of a segments range",
        'help' => <<'HELP',
This function changes the coloring type of a segment range to the
specified coloring type.
HELP
        'inargs' => [
            { name => "coloring_type", type => 'enum GimpGradientSegmentColor',
              desc => "The Coloring Type: { %%desc%% }" }
        ],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_set_coloring_type (gradient,
                                               start_seg,
                                               end_seg,
                                               coloring_type);
CODE
    );
}

sub gradient_segment_range_flip
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Flip the segment range",
        'help' => <<'HELP',
This function flips a segment range.
HELP
        'inargs' => [],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_flip (gradient,
                                  start_seg,
                                  end_seg,
                                  NULL, NULL);
CODE
    );
}

sub gradient_segment_range_replicate
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Replicate the segment range",
        'help' => <<'HELP',
This function replicates a segment range a given number of times. Instead
of the original segment range, several smaller scaled copies of it
will appear in equal widths.
HELP
        'inargs' => [
            { 'name' => "replicate_times", 'type' => "2 <= int32 <= 20",
              'desc' => "The number of times to replicate" }
        ],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_replicate (gradient,
                                       start_seg,
                                       end_seg,
                                       replicate_times,
                                       NULL, NULL);
CODE
    );
}

sub gradient_segment_range_split_midpoint
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Splits each segment in the segment range at midpoint",
        'help' => <<'HELP',
This function splits each segment in the segment range at its midpoint.
HELP
        'inargs' => [],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_split_midpoint (gradient,
                                            start_seg,
                                            end_seg,
                                            NULL, NULL);
CODE
    );
}

sub gradient_segment_range_split_uniform
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Splits each segment in the segment range uniformly",
        'help' => <<'HELP',
This function splits each segment in the segment range uniformly according
to the number of times specified by the parameter.
HELP
        'inargs' => [
            { 'name' => "split_parts", 'type' => "2 <= int32 <= 20",
              'desc' => "The number of uniform divisions to split each segment to" }
        ],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_split_uniform (gradient,
                                           start_seg,
                                           end_seg,
                                           split_parts,
                                           NULL, NULL);
CODE
    );
}

sub gradient_segment_range_delete
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Delete the segment range",
        'help' => <<'HELP',
This function deletes a segment range.
HELP
        'inargs' => [],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_delete (gradient,
                                    start_seg,
                                    end_seg,
                                    NULL, NULL);
CODE
    );
}

sub gradient_segment_range_redistribute_handles
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Uniformly redistribute the segment range's handles",
        'help' => <<'HELP',
This function redistributes the handles of the specified segment range of the
specified gradient, so they'll be evenly spaced.
HELP
        'inargs' => [],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_redistribute_handles (gradient,
                                                  start_seg,
                                                  end_seg);
CODE
    );
}

sub gradient_segment_range_blend_colors
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Blend the colors of the segment range.",
        'help' => <<'HELP',
This function blends the colors (but not the opacity) of the segments'
range of the gradient. Using it, the colors' transition will be uniform
across the range.
HELP
        'inargs' => [],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_blend (gradient,
                                   start_seg, end_seg,
                                   &start_seg->left_color,
                                   &end_seg->right_color,
                                   TRUE, FALSE);
CODE
    );
}

sub gradient_segment_range_blend_opacity
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Blend the opacity of the segment range.",
        'help' => <<'HELP',
This function blends the opacity (but not the colors) of the segments'
range of the gradient. Using it, the opacity's transition will be uniform
across the range.
HELP
        'inargs' => [],
        'outargs' => [],
        'action_on_success' => <<'CODE',
gimp_gradient_segment_range_blend (gradient,
                                   start_seg, end_seg,
                                   &start_seg->left_color,
                                   &end_seg->right_color,
                                   FALSE, TRUE);
CODE
    );
}

sub gradient_segment_range_move
{
    &_gen_gradient_operate_on_segments_range(
        'blurb' => "Move the position of an entire segment range by a delta.",
        'help' => <<'HELP',
This funtions moves the position of an entire segment range by a delta. The
actual delta (which is returned) will be limited by the control points of the
neighboring segments.
HELP
        'inargs' => [
            { 'name' => "delta", 'type' => "-1.0 <= float <= 1.0",
              'desc' => "The delta to move the segment range" },
            { 'name' => "control_compress", 'type' => "boolean",
              'desc' => "Whether or not to compress the neighboring segments" }
        ],
        'outargs' => [
            { 'name' => "final_delta", 'type' => "float", init => 1,
              'desc' => "The final delta by which the range moved" }
        ],
        'action_on_success' => <<'CODE',
final_delta = gimp_gradient_segment_range_move (gradient,
                                                start_seg,
                                                end_seg,
                                                delta,
                                                control_compress);

CODE
    );
}

@headers = qw(<string.h> "core/gimp.h" "core/gimpcontext.h"
              "core/gimpgradient.h" "core/gimpcontainer.h"
              "core/gimpdatafactory.h" "core/gimplist.h");

@procs = qw(gradient_new gradient_duplicate gradient_rename gradient_delete
            gradient_get_uniform_samples gradient_get_custom_samples
            gradient_segment_get_left_color gradient_segment_set_left_color
            gradient_segment_get_right_color gradient_segment_set_right_color
            gradient_segment_get_left_pos gradient_segment_set_left_pos
            gradient_segment_get_middle_pos gradient_segment_set_middle_pos
            gradient_segment_get_right_pos gradient_segment_set_right_pos
            gradient_segment_get_blending_function
            gradient_segment_get_coloring_type
            gradient_segment_range_set_blending_function 
            gradient_segment_range_set_coloring_type
            gradient_segment_range_flip
            gradient_segment_range_replicate
            gradient_segment_range_split_midpoint
            gradient_segment_range_split_uniform
            gradient_segment_range_delete
            gradient_segment_range_redistribute_handles
            gradient_segment_range_blend_colors
            gradient_segment_range_blend_opacity
            gradient_segment_range_move);
%exports = (app => [@procs], lib => [@procs]);

$desc = 'Gradient';

1;