PIKApp/app/vectors/pikabezierstroke.h

89 lines
4.2 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikabezierstroke.h
* Copyright (C) 2002 Simon Budig <simon@gimp.org>
*
* 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/>.
*/
#ifndef __PIKA_BEZIER_STROKE_H__
#define __PIKA_BEZIER_STROKE_H__
#include "pikastroke.h"
#define PIKA_TYPE_BEZIER_STROKE (pika_bezier_stroke_get_type ())
#define PIKA_BEZIER_STROKE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_BEZIER_STROKE, PikaBezierStroke))
#define PIKA_BEZIER_STROKE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_BEZIER_STROKE, PikaBezierStrokeClass))
#define PIKA_IS_BEZIER_STROKE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_BEZIER_STROKE))
#define PIKA_IS_BEZIER_STROKE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_BEZIER_STROKE))
#define PIKA_BEZIER_STROKE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_BEZIER_STROKE, PikaBezierStrokeClass))
typedef struct _PikaBezierStrokeClass PikaBezierStrokeClass;
struct _PikaBezierStroke
{
PikaStroke parent_instance;
};
struct _PikaBezierStrokeClass
{
PikaStrokeClass parent_class;
};
GType pika_bezier_stroke_get_type (void) G_GNUC_CONST;
PikaStroke * pika_bezier_stroke_new (void);
PikaStroke * pika_bezier_stroke_new_from_coords (const PikaCoords *coords,
gint n_coords,
gboolean closed);
PikaStroke * pika_bezier_stroke_new_moveto (const PikaCoords *start);
void pika_bezier_stroke_lineto (PikaStroke *bez_stroke,
const PikaCoords *end);
void pika_bezier_stroke_conicto (PikaStroke *bez_stroke,
const PikaCoords *control,
const PikaCoords *end);
void pika_bezier_stroke_cubicto (PikaStroke *bez_stroke,
const PikaCoords *control1,
const PikaCoords *control2,
const PikaCoords *end);
void pika_bezier_stroke_arcto (PikaStroke *bez_stroke,
gdouble radius_x,
gdouble radius_y,
gdouble angle_rad,
gboolean large_arc,
gboolean sweep,
const PikaCoords *end);
PikaStroke * pika_bezier_stroke_new_ellipse (const PikaCoords *center,
gdouble radius_x,
gdouble radius_y,
gdouble angle);
PikaAnchor * pika_bezier_stroke_extend (PikaStroke *stroke,
const PikaCoords *coords,
PikaAnchor *neighbor,
PikaVectorExtendMode extend_mode);
#endif /* __PIKA_BEZIER_STROKE_H__ */