1 /* Dia -- an diagram creation/manipulation program
2 * Copyright (C) 1999 Alexander Larsson
4 * BezierConn Copyright (C) 1999 James Henstridge
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 /** \file bezier_conn.h Allows to construct object consisting of bezier lines */
28 #include "boundingbox.h"
36 /** This is a subclass of DiaObject used to help implementing objects
37 * that connect points with polygonal line-segments.
40 DiaObject object
; /**< inheritance */
42 int numpoints
; /**< >= 2 */
43 BezPoint
*points
; /**< point data */
44 BezCornerType
*corner_types
;
45 PolyBBExtras extra_spacing
;
48 void bezierconn_update_data(BezierConn
*bez
);
49 void bezierconn_update_boundingbox(BezierConn
*bez
);
50 void bezierconn_simple_draw(BezierConn
*bez
, DiaRenderer
*renderer
,
52 void bezierconn_draw_control_lines(BezierConn
*bez
, DiaRenderer
*renderer
);
53 void bezierconn_init(BezierConn
*bez
, int num_points
);
54 void bezierconn_set_points(BezierConn
*poly
, int num_points
, BezPoint
*points
);
55 void bezierconn_destroy(BezierConn
*bez
);
56 void bezierconn_copy(BezierConn
*from
, BezierConn
*to
);
57 void bezierconn_save(BezierConn
*bez
, ObjectNode obj_node
);
58 void bezierconn_load(BezierConn
*bez
, ObjectNode obj_node
); /* NOTE: Does object_init() */
59 ObjectChange
*bezierconn_add_segment(BezierConn
*bez
, int segment
, Point
*point
);
60 ObjectChange
*bezierconn_remove_segment(BezierConn
*bez
, int point
);
61 ObjectChange
*bezierconn_set_corner_type(BezierConn
*bez
,
64 ObjectChange
*bezierconn_move_handle(BezierConn
*bez
, Handle
*id
,
65 Point
*to
, ConnectionPoint
*cp
,
66 HandleMoveReason reason
,
67 ModifierKeys modifiers
);
68 ObjectChange
*bezierconn_move(BezierConn
*bez
, Point
*to
);
69 real
bezierconn_distance_from(BezierConn
*bez
, Point
*point
,
71 Handle
*bezierconn_closest_handle(BezierConn
*bez
, Point
*point
);
72 Handle
*bezierconn_closest_major_handle(BezierConn
*bez
, Point
*point
);
73 int bezierconn_closest_segment(BezierConn
*bez
, Point
*point
,
76 #define BEZCONN_COMMON_PROPERTIES \
77 OBJECT_COMMON_PROPERTIES, \
78 { "bez_points", PROP_TYPE_BEZPOINTARRAY, 0, "bezierconn points", NULL} \
80 #define BEZCONN_COMMON_PROPERTIES_OFFSETS \
81 OBJECT_COMMON_PROPERTIES_OFFSETS, \
82 { "bez_points", PROP_TYPE_BEZPOINTARRAY, \
83 offsetof(BezierConn,points), offsetof(BezierConn,numpoints)} \
85 #endif /* BEZIER_CONN_H */