Learning_GTK4_tree/gsk/gskcontourprivate.h

99 lines
6.9 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 "gskpathprivate.h"
#include "gskpathpoint.h"
#include "gskpathopprivate.h"
#include "gskboundingboxprivate.h"
G_BEGIN_DECLS
GskContour * gsk_standard_contour_new (GskPathFlags flags,
const graphene_point_t *points,
gsize n_points,
const gskpathop *ops,
gsize n_ops,
gssize offset);
GskContour * gsk_circle_contour_new (const graphene_point_t *center,
float radius);
GskContour * gsk_rect_contour_new (const graphene_rect_t *rect);
GskContour * gsk_rounded_rect_contour_new (const GskRoundedRect *rounded_rect);
const char * gsk_contour_get_type_name (const GskContour *self);
void gsk_contour_copy (GskContour * dest,
const GskContour *src);
GskContour * gsk_contour_dup (const GskContour *src);
GskContour * gsk_contour_reverse (const GskContour *src);
gsize gsk_contour_get_size (const GskContour *self);
GskPathFlags gsk_contour_get_flags (const GskContour *self);
void gsk_contour_print (const GskContour *self,
GString *string);
gboolean gsk_contour_get_bounds (const GskContour *self,
GskBoundingBox *bounds);
gboolean gsk_contour_get_stroke_bounds (const GskContour *self,
const GskStroke *stroke,
GskBoundingBox *bounds);
gboolean gsk_contour_foreach (const GskContour *self,
GskPathForeachFunc func,
gpointer user_data);
int gsk_contour_get_winding (const GskContour *self,
const graphene_point_t *point);
gsize gsk_contour_get_n_ops (const GskContour *self);
gboolean gsk_contour_get_closest_point (const GskContour *self,
const graphene_point_t *point,
float threshold,
GskPathPoint *result,
float *out_dist);
void gsk_contour_get_position (const GskContour *self,
const GskPathPoint *point,
graphene_point_t *pos);
void gsk_contour_get_tangent (const GskContour *self,
const GskPathPoint *point,
GskPathDirection direction,
graphene_vec2_t *tangent);
float gsk_contour_get_curvature (const GskContour *self,
const GskPathPoint *point,
GskPathDirection direction,
graphene_point_t *center);
void gsk_contour_add_segment (const GskContour *self,
GskPathBuilder *builder,
gboolean emit_move_to,
const GskPathPoint *start,
const GskPathPoint *end);
gpointer gsk_contour_init_measure (const GskContour *self,
float tolerance,
float *out_length);
void gsk_contour_free_measure (const GskContour *self,
gpointer data);
void gsk_contour_get_point (const GskContour *self,
gpointer measure_data,
float distance,
GskPathPoint *result);
float gsk_contour_get_distance (const GskContour *self,
const GskPathPoint *point,
gpointer measure_data);
G_END_DECLS