mirror of https://github.com/GNOME/gimp.git
127 lines
4.2 KiB
C
127 lines
4.2 KiB
C
/* 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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <cairo.h>
|
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
|
#include <gegl.h>
|
|
|
|
#include "core-types.h"
|
|
|
|
#include "gimpbezierdesc.h"
|
|
#include "gimpboundary.h"
|
|
#include "gimpbrush.h"
|
|
#include "gimpbrush-boundary.h"
|
|
#include "gimptempbuf.h"
|
|
|
|
|
|
static GimpBezierDesc *
|
|
gimp_brush_transform_boundary_exact (GimpBrush *brush,
|
|
gdouble scale,
|
|
gdouble aspect_ratio,
|
|
gdouble angle,
|
|
gdouble hardness)
|
|
{
|
|
const GimpTempBuf *mask;
|
|
|
|
mask = gimp_brush_transform_mask (brush,
|
|
scale, aspect_ratio, angle, hardness);
|
|
|
|
if (mask)
|
|
{
|
|
GeglBuffer *buffer;
|
|
GimpBoundSeg *bound_segs;
|
|
gint n_bound_segs;
|
|
|
|
buffer = gimp_temp_buf_create_buffer ((GimpTempBuf *) mask);
|
|
|
|
bound_segs = gimp_boundary_find (buffer, NULL,
|
|
babl_format ("Y float"),
|
|
GIMP_BOUNDARY_WITHIN_BOUNDS,
|
|
0, 0,
|
|
gegl_buffer_get_width (buffer),
|
|
gegl_buffer_get_height (buffer),
|
|
0.0,
|
|
&n_bound_segs);
|
|
|
|
g_object_unref (buffer);
|
|
|
|
if (bound_segs)
|
|
{
|
|
GimpBoundSeg *stroke_segs;
|
|
gint n_stroke_groups;
|
|
|
|
stroke_segs = gimp_boundary_sort (bound_segs, n_bound_segs,
|
|
&n_stroke_groups);
|
|
|
|
g_free (bound_segs);
|
|
|
|
if (stroke_segs)
|
|
{
|
|
GimpBezierDesc *path;
|
|
|
|
path = gimp_bezier_desc_new_from_bound_segs (stroke_segs,
|
|
n_bound_segs,
|
|
n_stroke_groups);
|
|
|
|
g_free (stroke_segs);
|
|
|
|
return path;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static GimpBezierDesc *
|
|
gimp_brush_transform_boundary_approx (GimpBrush *brush,
|
|
gdouble scale,
|
|
gdouble aspect_ratio,
|
|
gdouble angle,
|
|
gdouble hardness)
|
|
{
|
|
return gimp_brush_transform_boundary_exact (brush,
|
|
scale, aspect_ratio,
|
|
angle, hardness);
|
|
}
|
|
|
|
GimpBezierDesc *
|
|
gimp_brush_real_transform_boundary (GimpBrush *brush,
|
|
gdouble scale,
|
|
gdouble aspect_ratio,
|
|
gdouble angle,
|
|
gdouble hardness,
|
|
gint *width,
|
|
gint *height)
|
|
{
|
|
gimp_brush_transform_size (brush, scale, aspect_ratio, angle,
|
|
width, height);
|
|
|
|
if (*width < 256 && *height < 256)
|
|
{
|
|
return gimp_brush_transform_boundary_exact (brush,
|
|
scale, aspect_ratio,
|
|
angle, hardness);
|
|
}
|
|
|
|
return gimp_brush_transform_boundary_approx (brush,
|
|
scale, aspect_ratio,
|
|
angle, hardness);
|
|
}
|