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 namespace BirdFont {
16
17 public class KerningStrings : GLib.Object {
18
19 Gee.ArrayList<string> kerning_strings = new Gee.ArrayList<string> ();
20 int current_position = 0;
21
22 public KerningStrings () {
23 }
24
25 public bool is_empty () {
26 return kerning_strings.size == 0;
27 }
28
29 public string next () {
30 string w = "";
31 Font font = BirdFont.get_current_font ();
32
33 if (0 <= current_position < kerning_strings.size) {
34 w = kerning_strings.get (current_position);
35 current_position++;
36 font.settings.set_setting ("kerning_string_position", @"$current_position");
37 }
38
39 return w;
40 }
41
42 public string previous () {
43 string w = "";
44 Font font = BirdFont.get_current_font ();
45
46 if (0 <= current_position - 1 < kerning_strings.size) {
47 current_position--;
48 w = kerning_strings.get (current_position);
49 font.settings.set_setting ("kerning_string_position", @"$current_position");
50 }
51
52 return w;
53
54 }
55
56 public void load_file () {
57 FileChooser fc = new FileChooser ();
58 fc.file_selected.connect ((f) => {
59 Font font = BirdFont.get_current_font ();
60 if (f != null) {
61 load_new_string (font, (!) f);
62 }
63 });
64
65 MainWindow.file_chooser (t_("Load kerning strings"), fc, FileChooser.LOAD);
66 }
67
68 public void load (Font font) {
69 string path;
70
71 path = font.settings.get_setting ("kerning_string_file");
72
73 if (path != "") {
74 load_new_string (font, path);
75 current_position = int.parse (font.settings.get_setting ("kerning_string_position"));
76 }
77 }
78
79 public void load_new_string (Font font, string kerning_strings_file) {
80 string data;
81 string[] strings;
82 string w;
83
84 try {
85 kerning_strings.clear ();
86
87 FileUtils.get_contents(kerning_strings_file, out data);
88 strings = data.replace ("\n", " ").split (" ");
89
90 foreach (string s in strings) {
91 w = s.replace ("\r", "");
92 if (w != "") {
93 kerning_strings.add (s);
94 }
95 }
96
97 current_position = 0;
98
99 font.settings.set_setting ("kerning_string_file", kerning_strings_file);
100 } catch (GLib.Error e) {
101 warning (e.message);
102 }
103 }
104 }
105
106 }
107