1 /*
2 Copyright (C) 2015 Johan Mattsson
3
4 This library is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 3 of the
7 License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13 */
14
15 using Cairo;
16 using Math;
17
18 namespace BirdFont {
19
20 public class Intersection : GLib.Object {
21 public bool done = false;
22 public EditPoint point;
23 public EditPoint other_point;
24 public Path path;
25 public Path other_path;
26
27 public Intersection (EditPoint point, Path path,
28 EditPoint other_point, Path other_path) {
29
30 this.point = point;
31 this.path = path;
32 this.other_point = other_point;
33 this.other_path = other_path;
34 }
35
36 public Intersection.empty () {
37 this.point = new EditPoint ();
38 this.path = new Path ();
39 this.other_point = new EditPoint ();
40 this.other_path = new Path ();
41 }
42
43 public Path get_other_path (Path p) {
44 if (p == path) {
45 return other_path;
46 }
47
48 if (p == other_path) {
49 return path;
50 }
51
52 warning ("Wrong intersection.");
53 return new Path ();
54 }
55
56 public EditPoint get_point (Path p) {
57 if (p == path) {
58 return point;
59 }
60
61 if (p == other_path) {
62 return other_point;
63 }
64
65 warning ("Wrong intersection.");
66 return new EditPoint ();
67 }
68 }
69
70 public class IntersectionList : GLib.Object {
71 public Gee.ArrayList<Intersection> points = new Gee.ArrayList<Intersection> ();
72
73 public IntersectionList () {
74 }
75
76 public Intersection get_point (EditPoint ep, out bool other) {
77 other = false;
78 foreach (Intersection i in points) {
79 if (i.other_point == ep || i.point == ep) {
80 other = (i.other_point == ep);
81 return i;
82 }
83 }
84
85 warning ("No intersection found for point.");
86 return new Intersection.empty ();
87 }
88 }
89
90 }
91