mirror of https://github.com/GNOME/gimp.git
185 lines
8.5 KiB
C
185 lines
8.5 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimpvectors.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 __GIMP_VECTORS_H__
|
|
#define __GIMP_VECTORS_H__
|
|
|
|
#include "core/gimpitem.h"
|
|
|
|
#define GIMP_TYPE_VECTORS (gimp_vectors_get_type ())
|
|
#define GIMP_VECTORS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_VECTORS, GimpVectors))
|
|
#define GIMP_VECTORS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_VECTORS, GimpVectorsClass))
|
|
#define GIMP_IS_VECTORS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_VECTORS))
|
|
#define GIMP_IS_VECTORS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_VECTORS))
|
|
#define GIMP_VECTORS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_VECTORS, GimpVectorsClass))
|
|
|
|
|
|
typedef struct _GimpVectorsClass GimpVectorsClass;
|
|
|
|
struct _GimpVectors
|
|
{
|
|
GimpItem parent_instance;
|
|
|
|
GQueue *strokes; /* Queue of GimpStrokes */
|
|
GHashTable *stroke_to_list; /* Map from GimpStroke to strokes listnode */
|
|
gint last_stroke_id;
|
|
|
|
gint freeze_count;
|
|
gdouble precision;
|
|
|
|
GimpBezierDesc *bezier_desc; /* Cached bezier representation */
|
|
|
|
gboolean bounds_valid; /* Cached bounding box */
|
|
gboolean bounds_empty;
|
|
gdouble bounds_x1;
|
|
gdouble bounds_y1;
|
|
gdouble bounds_x2;
|
|
gdouble bounds_y2;
|
|
};
|
|
|
|
struct _GimpVectorsClass
|
|
{
|
|
GimpItemClass parent_class;
|
|
|
|
/* signals */
|
|
void (* freeze) (GimpVectors *vectors);
|
|
void (* thaw) (GimpVectors *vectors);
|
|
|
|
/* virtual functions */
|
|
void (* stroke_add) (GimpVectors *vectors,
|
|
GimpStroke *stroke);
|
|
void (* stroke_remove) (GimpVectors *vectors,
|
|
GimpStroke *stroke);
|
|
GimpStroke * (* stroke_get) (GimpVectors *vectors,
|
|
const GimpCoords *coord);
|
|
GimpStroke * (* stroke_get_next) (GimpVectors *vectors,
|
|
GimpStroke *prev);
|
|
gdouble (* stroke_get_length) (GimpVectors *vectors,
|
|
GimpStroke *stroke);
|
|
GimpAnchor * (* anchor_get) (GimpVectors *vectors,
|
|
const GimpCoords *coord,
|
|
GimpStroke **ret_stroke);
|
|
void (* anchor_delete) (GimpVectors *vectors,
|
|
GimpAnchor *anchor);
|
|
gdouble (* get_length) (GimpVectors *vectors,
|
|
const GimpAnchor *start);
|
|
gdouble (* get_distance) (GimpVectors *vectors,
|
|
const GimpCoords *coord);
|
|
gint (* interpolate) (GimpVectors *vectors,
|
|
GimpStroke *stroke,
|
|
gdouble precision,
|
|
gint max_points,
|
|
GimpCoords *ret_coords);
|
|
GimpBezierDesc * (* make_bezier) (GimpVectors *vectors);
|
|
};
|
|
|
|
|
|
/* vectors utility functions */
|
|
|
|
GType gimp_vectors_get_type (void) G_GNUC_CONST;
|
|
|
|
GimpVectors * gimp_vectors_new (GimpImage *image,
|
|
const gchar *name);
|
|
|
|
GimpVectors * gimp_vectors_get_parent (GimpVectors *vectors);
|
|
|
|
void gimp_vectors_freeze (GimpVectors *vectors);
|
|
void gimp_vectors_thaw (GimpVectors *vectors);
|
|
|
|
void gimp_vectors_copy_strokes (GimpVectors *src_vectors,
|
|
GimpVectors *dest_vectors);
|
|
void gimp_vectors_add_strokes (GimpVectors *src_vectors,
|
|
GimpVectors *dest_vectors);
|
|
|
|
|
|
/* accessing / modifying the anchors */
|
|
|
|
GimpAnchor * gimp_vectors_anchor_get (GimpVectors *vectors,
|
|
const GimpCoords *coord,
|
|
GimpStroke **ret_stroke);
|
|
|
|
/* prev == NULL: "first" anchor */
|
|
GimpAnchor * gimp_vectors_anchor_get_next (GimpVectors *vectors,
|
|
const GimpAnchor *prev);
|
|
|
|
/* type will be an xorable enum:
|
|
* VECTORS_NONE, VECTORS_FIX_ANGLE, VECTORS_FIX_RATIO, VECTORS_RESTRICT_ANGLE
|
|
* or so.
|
|
*/
|
|
void gimp_vectors_anchor_move_relative (GimpVectors *vectors,
|
|
GimpAnchor *anchor,
|
|
const GimpCoords *deltacoord,
|
|
gint type);
|
|
void gimp_vectors_anchor_move_absolute (GimpVectors *vectors,
|
|
GimpAnchor *anchor,
|
|
const GimpCoords *coord,
|
|
gint type);
|
|
|
|
void gimp_vectors_anchor_delete (GimpVectors *vectors,
|
|
GimpAnchor *anchor);
|
|
|
|
void gimp_vectors_anchor_select (GimpVectors *vectors,
|
|
GimpStroke *target_stroke,
|
|
GimpAnchor *anchor,
|
|
gboolean selected,
|
|
gboolean exclusive);
|
|
|
|
|
|
/* GimpStroke is a connected component of a GimpVectors object */
|
|
|
|
void gimp_vectors_stroke_add (GimpVectors *vectors,
|
|
GimpStroke *stroke);
|
|
void gimp_vectors_stroke_remove (GimpVectors *vectors,
|
|
GimpStroke *stroke);
|
|
gint gimp_vectors_get_n_strokes (GimpVectors *vectors);
|
|
GimpStroke * gimp_vectors_stroke_get (GimpVectors *vectors,
|
|
const GimpCoords *coord);
|
|
GimpStroke * gimp_vectors_stroke_get_by_id (GimpVectors *vectors,
|
|
gint id);
|
|
|
|
/* prev == NULL: "first" stroke */
|
|
GimpStroke * gimp_vectors_stroke_get_next (GimpVectors *vectors,
|
|
GimpStroke *prev);
|
|
gdouble gimp_vectors_stroke_get_length (GimpVectors *vectors,
|
|
GimpStroke *stroke);
|
|
|
|
/* accessing the shape of the curve */
|
|
|
|
gdouble gimp_vectors_get_length (GimpVectors *vectors,
|
|
const GimpAnchor *start);
|
|
gdouble gimp_vectors_get_distance (GimpVectors *vectors,
|
|
const GimpCoords *coord);
|
|
|
|
/* returns the number of valid coordinates */
|
|
|
|
gint gimp_vectors_interpolate (GimpVectors *vectors,
|
|
GimpStroke *stroke,
|
|
gdouble precision,
|
|
gint max_points,
|
|
GimpCoords *ret_coords);
|
|
|
|
/* usually overloaded */
|
|
|
|
/* returns a bezier representation */
|
|
const GimpBezierDesc * gimp_vectors_get_bezier (GimpVectors *vectors);
|
|
|
|
|
|
#endif /* __GIMP_VECTORS_H__ */
|