42eaacbab4
Implement union, intersection, difference and symmetric difference of two paths, as well as simplification of a single path.
75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/*
|
|
* Copyright © 2020 Benjamin Otte
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Authors: Benjamin Otte <otte@gnome.org>
|
|
*/
|
|
|
|
|
|
#pragma once
|
|
|
|
#include "gskpath.h"
|
|
|
|
#include "gskpathopprivate.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef enum
|
|
{
|
|
GSK_PATH_FLAT,
|
|
GSK_PATH_CLOSED
|
|
} GskPathFlags;
|
|
|
|
typedef struct _GskContour GskContour;
|
|
typedef struct _GskRealPathPoint GskRealPathPoint;
|
|
|
|
/* Same as Skia, so looks like a good value. ¯\_(ツ)_/¯ */
|
|
#define GSK_PATH_TOLERANCE_DEFAULT (0.5)
|
|
|
|
GskPath * gsk_path_new_from_contours (const GSList *contours);
|
|
|
|
gsize gsk_path_get_n_contours (const GskPath *self);
|
|
const GskContour * gsk_path_get_contour (const GskPath *self,
|
|
gsize i);
|
|
|
|
GskPathFlags gsk_path_get_flags (const GskPath *self);
|
|
|
|
gboolean gsk_path_foreach_with_tolerance (GskPath *self,
|
|
GskPathForeachFlags flags,
|
|
double tolerance,
|
|
GskPathForeachFunc func,
|
|
gpointer user_data);
|
|
|
|
|
|
void gsk_path_builder_add_contour (GskPathBuilder *builder,
|
|
GskContour *contour);
|
|
|
|
typedef enum
|
|
{
|
|
GSK_PATH_OP_SIMPLIFY,
|
|
GSK_PATH_OP_UNION,
|
|
GSK_PATH_OP_INTERSECTION,
|
|
GSK_PATH_OP_DIFFERENCE,
|
|
GSK_PATH_OP_XOR
|
|
} GskPathOp;
|
|
|
|
GskPath * gsk_path_op (GskPathOp operation,
|
|
GskFillRule fill_rule,
|
|
GskPath *first,
|
|
GskPath *second);
|
|
|
|
G_END_DECLS
|
|
|