1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* notes.c
*
* Colloquium - A tiny presentation program
*
* Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
*
* 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 <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <gtk/gtk.h>
#include "presentation.h"
struct notes
{
GtkWidget *window;
GtkWidget *v;
};
static void set_notes_title(struct presentation *p)
{
gtk_window_set_title(GTK_WINDOW(p->notes->window), "Colloquium notes");
}
static void update_notes(struct presentation *p)
{
GtkTextBuffer *tb;
if ( p->notes == NULL ) return;
tb = gtk_text_view_get_buffer(GTK_TEXT_VIEW(p->notes->v));
gtk_text_buffer_set_text(tb, p->cur_edit_slide->notes, -1);
}
static void grab_notes(struct notes *n, struct slide *s)
{
gchar *text;
GtkTextBuffer *tb;
GtkTextIter i1, i2;
if ( n == NULL ) return;
tb = gtk_text_view_get_buffer(GTK_TEXT_VIEW(n->v));
gtk_text_buffer_get_start_iter(tb, &i1);
gtk_text_buffer_get_end_iter(tb, &i2);
text = gtk_text_buffer_get_text(tb, &i1, &i2, TRUE);
free(s->notes);
s->notes = text;
}
void notify_notes_slide_changed(struct presentation *p, struct slide *np)
{
grab_notes(p->notes, p->cur_notes_slide);
p->cur_notes_slide = np;
update_notes(p);
}
static gint close_notes_sig(GtkWidget *w, struct presentation *p)
{
grab_notes(p->notes, p->cur_notes_slide);
return FALSE;
}
static char *escape_text(const char *a)
{
char *b;
size_t l1, l, i;
l1 = strlen(a);
b = malloc(2*l1 + 1);
l = 0;
for ( i=0; i<l1; i++ ) {
char c = a[i];
/* Yes, this is horribly confusing */
if ( c == '\n' ) {
b[l++] = '\\'; b[l++] = 'n';
} else if ( c == '\r' ) {
b[l++] = '\\'; b[l++] = 'r';
} else if ( c == '\"' ) {
b[l++] = '\\'; b[l++] = '\"';
} else if ( c == '\t' ) {
b[l++] = '\\'; b[l++] = 't';
} else {
b[l++] = c;
}
}
b[l++] = '\0';
return realloc(b, l);
}
static char *unescape_text(const char *a)
{
char *b;
size_t l1, l, i;
int escape;
l1 = strlen(a);
b = malloc(l1 + 1);
l = 0;
escape = 0;
for ( i=0; i<l1; i++ ) {
char c = a[i];
if ( escape ) {
if ( c == 'r' ) b[l++] = '\r';
if ( c == 'n' ) b[l++] = '\n';
if ( c == '\"' ) b[l++] = '\"';
if ( c == 't' ) b[l++] = '\t';
escape = 0;
continue;
}
if ( c == '\\' ) {
escape = 1;
continue;
}
b[l++] = c;
}
b[l++] = '\0';
return realloc(b, l);
}
void write_notes(struct slide *s, struct serializer *ser)
{
char *es;
es = escape_text(s->notes);
serialize_s(ser, "notes", es);
free(es);
}
void load_notes(struct ds_node *node, struct slide *s)
{
char *v;
if ( get_field_s(node, "notes", &v) ) return;
s->notes = unescape_text(v);
free(v);
}
void open_notes(struct presentation *p)
{
struct notes *n;
GtkWidget *sc;
PangoFontDescription *desc;
if ( p->notes != NULL ) return; /* Already open */
n = malloc(sizeof(struct notes));
if ( n == NULL ) return;
p->notes = n;
p->cur_notes_slide = p->cur_edit_slide;
n->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
sc = gtk_scrolled_window_new(NULL, NULL);
gtk_container_add(GTK_CONTAINER(n->window), sc);
n->v = gtk_text_view_new();
desc = pango_font_description_from_string("Sans 24");
gtk_widget_modify_font(n->v, desc);
pango_font_description_free(desc);
gtk_text_view_set_left_margin(GTK_TEXT_VIEW(n->v), 30);
gtk_text_view_set_right_margin(GTK_TEXT_VIEW(n->v), 30);
gtk_container_add(GTK_CONTAINER(sc), n->v);
g_signal_connect(G_OBJECT(n->v), "destroy",
G_CALLBACK(close_notes_sig), p);
set_notes_title(p);
gtk_widget_show_all(n->window);
update_notes(p);
}
|
