1 /*
2 Copyright (C) 2014 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 LigatureList : Table {
21 Gee.ArrayList<Row> rows = new Gee.ArrayList<Row> ();
22
23 public const int NEW_LIGATURE = -1;
24
25 public LigatureList () {
26 }
27
28 public override Gee.ArrayList<Row> get_rows () {
29 return rows;
30 }
31
32 void add_contextual_ligature (string ligature, string backtrack, string input, string lookahead) {
33 Font font = BirdFont.get_current_font ();
34 Ligatures ligatures = font.get_ligatures ();
35 ligatures.add_contextual_ligature (ligature, backtrack, input, lookahead);
36 }
37
38 void add_ligature (string subst, string liga) {
39 Font font = BirdFont.get_current_font ();
40 Ligatures ligatures = font.get_ligatures ();
41 ligatures.add_ligature (subst, liga);
42 }
43
44 public override void selected_row (Row row, int column, bool delete_button) {
45 Font font = BirdFont.get_current_font ();
46 Ligatures ligatures = font.get_ligatures ();
47 int i;
48 int ncontextual;
49
50 ncontextual = ligatures.contextual_ligatures.size;
51
52 if (row.get_index () == NEW_LIGATURE && column == 0) {
53 add_ligature (t_("character sequence"), t_("ligature"));
54 TabContent.hide_text_input ();
55 } else if (row.get_index () == NEW_LIGATURE && column == 1) {
56 add_contextual_ligature (t_("substitution"), t_("beginning"), t_("middle"), t_("end"));
57 TabContent.hide_text_input ();
58 } else if (row.get_index () < ncontextual) {
59 i = row.get_index ();
60 if (i < ligatures.count_contextual_ligatures ()) {
61 return_if_fail (0 <= i < ligatures.count_contextual_ligatures ());
62 if (delete_button) {
63 ligatures.remove_contextual_ligatures_at (i);
64 TabContent.hide_text_input ();
65 } if (column == 0) {
66 ligatures.set_contextual_ligature (i);
67 } else if (column == 1) {
68 ligatures.set_beginning (i);
69 } else if (column == 2) {
70 ligatures.set_middle (i);
71 } else if (column == 3) {
72 ligatures.set_end (i);
73 }
74 }
75 } else if (row.get_index () >= ncontextual) {
76 i = row.get_index () - ncontextual;
77
78 if (ligatures.count () != 0) {
79 if (delete_button) {
80 return_if_fail (0 <= i < ligatures.count ());
81 ligatures.remove_at (i);
82 TabContent.hide_text_input ();
83 } else if (column == 0) {
84 return_if_fail (0 <= i < ligatures.count ());
85 ligatures.set_ligature (i);
86 } else if (column == 2) {
87 return_if_fail (0 <= i < ligatures.count ());
88 ligatures.set_substitution (i);
89 }
90 }
91 }
92
93 update_rows ();
94 update_scrollbar ();
95 font.touch ();
96 }
97
98 public override void update_rows () {
99 int i;
100 Font font = BirdFont.get_current_font ();
101 Ligatures ligatures = font.get_ligatures ();
102 Row row;
103
104 rows.clear ();
105
106 row = new Row.headline (t_("Add"));
107 rows.add (row);
108
109 row = new Row.columns_2 (t_("New Ligature"), t_("New Contextual Substitution"), NEW_LIGATURE, false);
110 rows.add (row);
111
112 i = 0;
113
114 if (ligatures.contextual_ligatures.size > 0) {
115 row = new Row.headline (t_("Contextual Substitutions"));
116 rows.add (row);
117 }
118
119 ligatures.get_contextual_ligatures ((liga) => {
120 row = new Row.columns_4 (liga.ligatures, liga.backtrack, liga.input, liga.lookahead, i);
121 rows.add (row);
122 i++;
123 });
124
125 if (ligatures.ligatures.size > 0) {
126 row = new Row.headline (t_("Ligatures"));
127 rows.add (row);
128 }
129
130 ligatures.get_ligatures ((subst, liga) => {
131 row = new Row.columns_3 (liga, "", subst, i);
132 rows.add (row);
133 i++;
134 });
135
136 GlyphCanvas.redraw ();
137 }
138
139 public override string get_label () {
140 return t_("Ligatures");
141 }
142
143 public override string get_name () {
144 return "Ligatures";
145 }
146 }
147
148 }
149