diff options
Diffstat (limited to 'meta/packages/gtk+/gtk+-2.6.4-1.osso7/gtktextbufferserialize.c.diff')
-rw-r--r-- | meta/packages/gtk+/gtk+-2.6.4-1.osso7/gtktextbufferserialize.c.diff | 1688 |
1 files changed, 1688 insertions, 0 deletions
diff --git a/meta/packages/gtk+/gtk+-2.6.4-1.osso7/gtktextbufferserialize.c.diff b/meta/packages/gtk+/gtk+-2.6.4-1.osso7/gtktextbufferserialize.c.diff new file mode 100644 index 0000000000..39c8f748de --- /dev/null +++ b/meta/packages/gtk+/gtk+-2.6.4-1.osso7/gtktextbufferserialize.c.diff | |||
@@ -0,0 +1,1688 @@ | |||
1 | --- gtk+-2.6.4/gtk/gtktextbufferserialize.c 1970-01-01 02:00:00.000000000 +0200 | ||
2 | +++ gtk+-2.6.4/gtk/gtktextbufferserialize.c 2005-04-06 16:19:38.024757720 +0300 | ||
3 | @@ -0,0 +1,1685 @@ | ||
4 | +/* gtktextbufferserialize.c | ||
5 | + * | ||
6 | + * Copyright (C) 2001 Havoc Pennington | ||
7 | + * Copyright (C) 2004 Nokia | ||
8 | + * | ||
9 | + * This library is free software; you can redistribute it and/or | ||
10 | + * modify it under the terms of the GNU Library General Public | ||
11 | + * License as published by the Free Software Foundation; either | ||
12 | + * version 2 of the License, or (at your option) any later version. | ||
13 | + * | ||
14 | + * This library is distributed in the hope that it will be useful, | ||
15 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
17 | + * Library General Public License for more details. | ||
18 | + * | ||
19 | + * You should have received a copy of the GNU Library General Public | ||
20 | + * License along with this library; if not, write to the | ||
21 | + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
22 | + * Boston, MA 02111-1307, USA. | ||
23 | + */ | ||
24 | + | ||
25 | +/* FIXME: We should use other error codes for the | ||
26 | + * parts that deal with the format errors | ||
27 | + */ | ||
28 | + | ||
29 | +#include <config.h> | ||
30 | + | ||
31 | +#include <stdio.h> | ||
32 | +#include "gdk-pixbuf/gdk-pixdata.h" | ||
33 | +#include "gtktextbufferserialize.h" | ||
34 | +#include "gtkintl.h" | ||
35 | + | ||
36 | +#include <string.h> | ||
37 | +#include <stdlib.h> | ||
38 | + | ||
39 | +typedef struct | ||
40 | +{ | ||
41 | + GString *tag_table_str; | ||
42 | + GString *text_str; | ||
43 | + GHashTable *tags; | ||
44 | + GtkTextIter start, end; | ||
45 | + | ||
46 | + gint n_pixbufs; | ||
47 | + GList *pixbufs; | ||
48 | +} SerializationContext; | ||
49 | + | ||
50 | +static gchar * | ||
51 | +serialize_value (GValue *value) | ||
52 | +{ | ||
53 | + if (g_value_type_transformable (value->g_type, G_TYPE_STRING)) | ||
54 | + { | ||
55 | + GValue text_value = { 0 }; | ||
56 | + gchar *tmp; | ||
57 | + | ||
58 | + g_value_init (&text_value, G_TYPE_STRING); | ||
59 | + g_value_transform (value, &text_value); | ||
60 | + | ||
61 | + tmp = g_markup_escape_text (g_value_get_string (&text_value), -1); | ||
62 | + g_value_unset (&text_value); | ||
63 | + | ||
64 | + return tmp; | ||
65 | + } | ||
66 | + else if (value->g_type == GDK_TYPE_COLOR) | ||
67 | + { | ||
68 | + GdkColor *color = g_value_get_boxed (value); | ||
69 | + | ||
70 | + return g_strdup_printf ("%x:%x:%x", color->red, color->green, color->blue); | ||
71 | + } | ||
72 | + else | ||
73 | + { | ||
74 | + g_warning ("Type %s is not serializable\n", g_type_name (value->g_type)); | ||
75 | + } | ||
76 | + | ||
77 | + return NULL; | ||
78 | +} | ||
79 | + | ||
80 | +static gboolean | ||
81 | +deserialize_value (const gchar *str, GValue *value) | ||
82 | +{ | ||
83 | + if (g_value_type_transformable (G_TYPE_STRING, value->g_type)) | ||
84 | + { | ||
85 | + GValue text_value = { 0 }; | ||
86 | + gboolean retval; | ||
87 | + | ||
88 | + g_value_init (&text_value, G_TYPE_STRING); | ||
89 | + g_value_set_static_string (&text_value, str); | ||
90 | + | ||
91 | + retval = g_value_transform (&text_value, value); | ||
92 | + g_value_unset (&text_value); | ||
93 | + | ||
94 | + return retval; | ||
95 | + } | ||
96 | + else if (value->g_type == G_TYPE_BOOLEAN) | ||
97 | + { | ||
98 | + gboolean v; | ||
99 | + | ||
100 | + v = strcmp (str, "TRUE") == 0; | ||
101 | + | ||
102 | + g_value_set_boolean (value, v); | ||
103 | + | ||
104 | + return TRUE; | ||
105 | + } | ||
106 | + else if (value->g_type == G_TYPE_INT) | ||
107 | + { | ||
108 | + gchar *tmp; | ||
109 | + int v; | ||
110 | + | ||
111 | + v = strtol (str, &tmp, 10); | ||
112 | + | ||
113 | + if (tmp == NULL || tmp == str) | ||
114 | + return FALSE; | ||
115 | + | ||
116 | + g_value_set_int (value, v); | ||
117 | + | ||
118 | + return TRUE; | ||
119 | + } | ||
120 | + else if (value->g_type == G_TYPE_DOUBLE) | ||
121 | + { | ||
122 | + gchar *tmp; | ||
123 | + gdouble v; | ||
124 | + | ||
125 | + v = g_ascii_strtod (str, &tmp); | ||
126 | + | ||
127 | + if (tmp == NULL || tmp == str) | ||
128 | + return FALSE; | ||
129 | + | ||
130 | + g_value_set_double (value, v); | ||
131 | + | ||
132 | + return TRUE; | ||
133 | + } | ||
134 | + else if (value->g_type == GDK_TYPE_COLOR) | ||
135 | + { | ||
136 | + GdkColor color; | ||
137 | + const gchar *old; | ||
138 | + gchar *tmp; | ||
139 | + | ||
140 | + old = str; | ||
141 | + color.red = strtol (old, &tmp, 16); | ||
142 | + | ||
143 | + if (tmp == NULL || tmp == old) | ||
144 | + return FALSE; | ||
145 | + | ||
146 | + old = tmp; | ||
147 | + if (*old++ != ':') | ||
148 | + return FALSE; | ||
149 | + | ||
150 | + color.green = strtol (old, &tmp, 16); | ||
151 | + if (tmp == NULL || tmp == old) | ||
152 | + return FALSE; | ||
153 | + | ||
154 | + old = tmp; | ||
155 | + if (*old++ != ':') | ||
156 | + return FALSE; | ||
157 | + | ||
158 | + color.blue = strtol (old, &tmp, 16); | ||
159 | + | ||
160 | + if (tmp == NULL || tmp == old || *tmp != '\0') | ||
161 | + return FALSE; | ||
162 | + | ||
163 | + g_value_set_boxed (value, &color); | ||
164 | + | ||
165 | + return TRUE; | ||
166 | + } | ||
167 | + else if (G_VALUE_HOLDS_ENUM (value)) | ||
168 | + { | ||
169 | + GEnumClass *class = G_ENUM_CLASS (g_type_class_peek (value->g_type)); | ||
170 | + GEnumValue *enum_value; | ||
171 | + | ||
172 | + enum_value = g_enum_get_value_by_name (class, str); | ||
173 | + | ||
174 | + if (enum_value) | ||
175 | + { | ||
176 | + g_value_set_enum (value, enum_value->value); | ||
177 | + return TRUE; | ||
178 | + } | ||
179 | + | ||
180 | + return FALSE; | ||
181 | + } | ||
182 | + else | ||
183 | + { | ||
184 | + g_warning ("Type %s can not be deserialized\n", g_type_name (value->g_type)); | ||
185 | + } | ||
186 | + | ||
187 | + return FALSE; | ||
188 | +} | ||
189 | + | ||
190 | +/* Checks if a param is set, or if it's the default value */ | ||
191 | +static gboolean | ||
192 | +is_param_set (GObject *object, GParamSpec *pspec, GValue *value) | ||
193 | +{ | ||
194 | + /* We need to special case some attributes here */ | ||
195 | + if (strcmp (pspec->name, "background-gdk") == 0) | ||
196 | + { | ||
197 | + gboolean is_set; | ||
198 | + | ||
199 | + g_object_get (object, "background-set", &is_set, NULL); | ||
200 | + | ||
201 | + if (is_set) | ||
202 | + { | ||
203 | + g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec)); | ||
204 | + | ||
205 | + g_object_get_property (object, pspec->name, value); | ||
206 | + | ||
207 | + return TRUE; | ||
208 | + } | ||
209 | + | ||
210 | + return FALSE; | ||
211 | + } | ||
212 | + else if (strcmp (pspec->name, "foreground-gdk") == 0) | ||
213 | + { | ||
214 | + gboolean is_set; | ||
215 | + | ||
216 | + g_object_get (object, "foreground-set", &is_set, NULL); | ||
217 | + | ||
218 | + if (is_set) | ||
219 | + { | ||
220 | + g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec)); | ||
221 | + | ||
222 | + g_object_get_property (object, pspec->name, value); | ||
223 | + | ||
224 | + return TRUE; | ||
225 | + } | ||
226 | + | ||
227 | + return FALSE; | ||
228 | + } | ||
229 | + else | ||
230 | + { | ||
231 | + gboolean is_set; | ||
232 | + gchar *is_set_name; | ||
233 | + | ||
234 | + is_set_name = g_strdup_printf ("%s-set", pspec->name); | ||
235 | + | ||
236 | + if (g_object_class_find_property (G_OBJECT_GET_CLASS (object), is_set_name) == NULL) | ||
237 | + { | ||
238 | + g_free (is_set_name); | ||
239 | + return FALSE; | ||
240 | + } | ||
241 | + else | ||
242 | + { | ||
243 | + g_object_get (object, is_set_name, &is_set, NULL); | ||
244 | + | ||
245 | + if (!is_set) | ||
246 | + { | ||
247 | + g_free (is_set_name); | ||
248 | + return FALSE; | ||
249 | + } | ||
250 | + | ||
251 | + g_free (is_set_name); | ||
252 | + | ||
253 | + g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec)); | ||
254 | + | ||
255 | + g_object_get_property (object, pspec->name, value); | ||
256 | + | ||
257 | + if (g_param_value_defaults (pspec, value)) | ||
258 | + { | ||
259 | + g_value_unset (value); | ||
260 | + | ||
261 | + return FALSE; | ||
262 | + } | ||
263 | + } | ||
264 | + return TRUE; | ||
265 | + } | ||
266 | +} | ||
267 | + | ||
268 | +static void | ||
269 | +serialize_tag (gpointer key, gpointer data, gpointer user_data) | ||
270 | +{ | ||
271 | + SerializationContext *context = user_data; | ||
272 | + GtkTextTag *tag = data; | ||
273 | + gchar *tag_name; | ||
274 | + GParamSpec **pspecs; | ||
275 | + guint n_pspecs; | ||
276 | + int i; | ||
277 | + | ||
278 | + tag_name = g_markup_escape_text (tag->name, -1); | ||
279 | + g_string_append_printf (context->tag_table_str, " <tag name=\"%s\" priority=\"%d\">\n", tag_name, tag->priority); | ||
280 | + | ||
281 | + /* Serialize properties */ | ||
282 | + pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (tag), &n_pspecs); | ||
283 | + | ||
284 | + for (i = 0; i < n_pspecs; i++) | ||
285 | + { | ||
286 | + GValue value = { 0 }; | ||
287 | + gchar *tmp, *tmp2; | ||
288 | + | ||
289 | + if (!(pspecs[i]->flags & G_PARAM_READABLE) || | ||
290 | + !(pspecs[i]->flags & G_PARAM_WRITABLE)) | ||
291 | + continue; | ||
292 | + | ||
293 | + if (!is_param_set (G_OBJECT (tag), pspecs[i], &value)) | ||
294 | + continue; | ||
295 | + | ||
296 | + /* Now serialize the attr */ | ||
297 | + tmp = g_markup_escape_text (pspecs[i]->name, -1); | ||
298 | + g_string_append_printf (context->tag_table_str, " <attr name=\"%s\" ", tmp); | ||
299 | + g_free (tmp); | ||
300 | + | ||
301 | + tmp = g_markup_escape_text (g_type_name (pspecs[i]->value_type), -1); | ||
302 | + tmp2 = serialize_value (&value); | ||
303 | + g_string_append_printf (context->tag_table_str, "type=\"%s\" value=\"%s\" />\n", tmp, tmp2); | ||
304 | + | ||
305 | + g_free (tmp); | ||
306 | + g_free (tmp2); | ||
307 | + | ||
308 | + g_value_unset (&value); | ||
309 | + } | ||
310 | + | ||
311 | + g_free (pspecs); | ||
312 | + | ||
313 | + g_string_append (context->tag_table_str, " </tag>\n"); | ||
314 | + g_free (tag_name); | ||
315 | +} | ||
316 | + | ||
317 | +static void | ||
318 | +serialize_tags (SerializationContext *context) | ||
319 | +{ | ||
320 | + g_string_append (context->tag_table_str, " <text_view_markup>\n"); | ||
321 | + g_string_append (context->tag_table_str, " <tags>\n"); | ||
322 | + g_hash_table_foreach (context->tags, serialize_tag, context); | ||
323 | + g_string_append (context->tag_table_str, " </tags>\n"); | ||
324 | +} | ||
325 | + | ||
326 | +#if 0 | ||
327 | +static void | ||
328 | +dump_tag_list (const gchar *str, GList *list) | ||
329 | +{ | ||
330 | + g_print ("%s: ", str); | ||
331 | + | ||
332 | + if (!list) | ||
333 | + g_print ("(empty)"); | ||
334 | + else | ||
335 | + { | ||
336 | + while (list) | ||
337 | + { | ||
338 | + g_print ("%s ", ((GtkTextTag *)list->data)->name); | ||
339 | + list = list->next; | ||
340 | + } | ||
341 | + } | ||
342 | + | ||
343 | + g_print ("\n"); | ||
344 | +} | ||
345 | +#endif | ||
346 | + | ||
347 | +static void | ||
348 | +find_list_delta (GSList *old_list, GSList *new_list, | ||
349 | + GList **added, GList **removed) | ||
350 | +{ | ||
351 | + GSList *tmp; | ||
352 | + GList *tmp_added, *tmp_removed; | ||
353 | + | ||
354 | + tmp_added = NULL; | ||
355 | + tmp_removed = NULL; | ||
356 | + | ||
357 | + /* Find added tags */ | ||
358 | + tmp = new_list; | ||
359 | + while (tmp) | ||
360 | + { | ||
361 | + if (!g_slist_find (old_list, tmp->data)) | ||
362 | + tmp_added = g_list_prepend (tmp_added, tmp->data); | ||
363 | + | ||
364 | + tmp = tmp->next; | ||
365 | + } | ||
366 | + | ||
367 | + *added = tmp_added; | ||
368 | + | ||
369 | + /* Find removed tags */ | ||
370 | + tmp = old_list; | ||
371 | + while (tmp) | ||
372 | + { | ||
373 | + if (!g_slist_find (new_list, tmp->data)) | ||
374 | + tmp_removed = g_list_prepend (tmp_removed, tmp->data); | ||
375 | + | ||
376 | + tmp = tmp->next; | ||
377 | + } | ||
378 | + | ||
379 | + /* We reverse the list here to match the xml semantics */ | ||
380 | + *removed = g_list_reverse (tmp_removed); | ||
381 | +} | ||
382 | + | ||
383 | +static void | ||
384 | +serialize_section_header (GString *str, | ||
385 | + const gchar *name, | ||
386 | + gint length) | ||
387 | +{ | ||
388 | + g_return_if_fail (strlen (name) == 8); | ||
389 | + | ||
390 | + g_string_append (str, name); | ||
391 | + | ||
392 | + g_string_append_c (str, length >> 24); | ||
393 | + | ||
394 | + g_string_append_c (str, (length >> 16) & 0xff); | ||
395 | + g_string_append_c (str, (length >> 8) & 0xff); | ||
396 | + g_string_append_c (str, length & 0xff); | ||
397 | +} | ||
398 | + | ||
399 | +static void | ||
400 | +serialize_text (GtkTextBuffer *buffer, SerializationContext *context) | ||
401 | +{ | ||
402 | + GtkTextIter iter, old_iter; | ||
403 | + GSList *tag_list, *new_tag_list; | ||
404 | + GQueue *active_tags; | ||
405 | + int i; | ||
406 | + | ||
407 | + g_string_append (context->text_str, "<text>"); | ||
408 | + | ||
409 | + iter = context->start; | ||
410 | + tag_list = NULL; | ||
411 | + active_tags = g_queue_new (); | ||
412 | + | ||
413 | + do | ||
414 | + { | ||
415 | + GList *added, *removed; | ||
416 | + GList *tmp; | ||
417 | + gchar *tmp_text, *escaped_text; | ||
418 | + | ||
419 | + new_tag_list = gtk_text_iter_get_tags (&iter); | ||
420 | + find_list_delta (tag_list, new_tag_list, &added, &removed); | ||
421 | + | ||
422 | + /* Handle removed tags */ | ||
423 | + tmp = removed; | ||
424 | + while (tmp) | ||
425 | + { | ||
426 | + GtkTextTag *tag = tmp->data; | ||
427 | + | ||
428 | + g_string_append (context->text_str, "</apply_tag>"); | ||
429 | + | ||
430 | + /* We might need to drop some of the tags and re-add them afterwards */ | ||
431 | + while (g_queue_peek_head (active_tags) != tag && | ||
432 | + !g_queue_is_empty (active_tags)) | ||
433 | + { | ||
434 | + added = g_list_prepend (added, g_queue_pop_head (active_tags)); | ||
435 | + g_string_append_printf (context->text_str, "</apply_tag>"); | ||
436 | + } | ||
437 | + | ||
438 | + g_queue_pop_head (active_tags); | ||
439 | + | ||
440 | + tmp = tmp->next; | ||
441 | + } | ||
442 | + | ||
443 | + /* Handle added tags */ | ||
444 | + tmp = added; | ||
445 | + while (tmp) | ||
446 | + { | ||
447 | + GtkTextTag *tag = tmp->data; | ||
448 | + gchar *tag_name; | ||
449 | + | ||
450 | + /* Add it to the tag hash table */ | ||
451 | + g_hash_table_insert (context->tags, tag, tag); | ||
452 | + | ||
453 | + tag_name = g_markup_escape_text (tag->name, -1); | ||
454 | + | ||
455 | + g_string_append_printf (context->text_str, "<apply_tag name=\"%s\">", tag_name); | ||
456 | + g_free (tag_name); | ||
457 | + | ||
458 | + g_queue_push_head (active_tags, tag); | ||
459 | + | ||
460 | + tmp = tmp->next; | ||
461 | + } | ||
462 | + | ||
463 | + g_slist_free (tag_list); | ||
464 | + tag_list = new_tag_list; | ||
465 | + | ||
466 | + old_iter = iter; | ||
467 | + | ||
468 | + /* Now try to go to either the next tag toggle, or if a pixbuf appears */ | ||
469 | + while (TRUE) | ||
470 | + { | ||
471 | + gunichar ch = gtk_text_iter_get_char (&iter); | ||
472 | + | ||
473 | + if (ch == 0xFFFC) | ||
474 | + { | ||
475 | + GdkPixbuf *pixbuf = gtk_text_iter_get_pixbuf (&iter); | ||
476 | + | ||
477 | + if (pixbuf) { | ||
478 | + g_string_append_printf (context->text_str, "<pixbuf index=\"%d\" />", context->n_pixbufs); | ||
479 | + | ||
480 | + context->n_pixbufs++; | ||
481 | + context->pixbufs = g_list_prepend (context->pixbufs, pixbuf); | ||
482 | + } | ||
483 | + } | ||
484 | + | ||
485 | + gtk_text_iter_forward_char (&iter); | ||
486 | + | ||
487 | + if (gtk_text_iter_toggles_tag (&iter, NULL)) | ||
488 | + break; | ||
489 | + } | ||
490 | + | ||
491 | + /* We might have moved too far */ | ||
492 | + if (gtk_text_iter_compare (&iter, &context->end) > 0) | ||
493 | + iter = context->end; | ||
494 | + | ||
495 | + /* Append the text */ | ||
496 | + tmp_text = gtk_text_iter_get_slice (&old_iter, &iter); | ||
497 | + escaped_text = g_markup_escape_text (tmp_text, -1); | ||
498 | + g_free (tmp_text); | ||
499 | + | ||
500 | + g_string_append (context->text_str, escaped_text); | ||
501 | + g_free (escaped_text); | ||
502 | + } | ||
503 | + while (!gtk_text_iter_equal (&iter, &context->end)); | ||
504 | + | ||
505 | + /* Close any open tags */ | ||
506 | + for (i = 0; i < g_queue_get_length (active_tags); i++) { | ||
507 | + g_string_append (context->text_str, "</apply_tag>"); | ||
508 | + } | ||
509 | + g_queue_free (active_tags); | ||
510 | + g_string_append (context->text_str, "</text>\n</text_view_markup>\n"); | ||
511 | +} | ||
512 | + | ||
513 | +static void | ||
514 | +serialize_pixbufs (SerializationContext *context, | ||
515 | + GString *text) | ||
516 | +{ | ||
517 | + GList *list; | ||
518 | + | ||
519 | + for (list = context->pixbufs; list != NULL; list = list->next) | ||
520 | + { | ||
521 | + GdkPixbuf *pixbuf = list->data; | ||
522 | + GdkPixdata pixdata; | ||
523 | + guint8 *tmp; | ||
524 | + guint len; | ||
525 | + | ||
526 | + gdk_pixdata_from_pixbuf (&pixdata, pixbuf, FALSE); | ||
527 | + tmp = gdk_pixdata_serialize (&pixdata, &len); | ||
528 | + | ||
529 | + serialize_section_header (text, "PDPIXBUF", len); | ||
530 | + g_string_append_len (text, tmp, len); | ||
531 | + g_free (tmp); | ||
532 | + } | ||
533 | +} | ||
534 | + | ||
535 | +gchar * | ||
536 | +gtk_text_buffer_serialize_rich_text (GtkTextBuffer *buffer, | ||
537 | + const GtkTextIter *start, | ||
538 | + const GtkTextIter *end, | ||
539 | + gint *len) | ||
540 | +{ | ||
541 | + SerializationContext context; | ||
542 | + GString *text; | ||
543 | + | ||
544 | + context.tags = g_hash_table_new (NULL, NULL); | ||
545 | + context.text_str = g_string_new (NULL); | ||
546 | + context.tag_table_str = g_string_new (NULL); | ||
547 | + context.start = *start; | ||
548 | + context.end = *end; | ||
549 | + context.n_pixbufs = 0; | ||
550 | + context.pixbufs = NULL; | ||
551 | + | ||
552 | + /* We need to serialize the text before the tag table so we know | ||
553 | + what tags are used */ | ||
554 | + serialize_text (buffer, &context); | ||
555 | + serialize_tags (&context); | ||
556 | + | ||
557 | + text = g_string_new (NULL); | ||
558 | + serialize_section_header (text, "RICHTEXT", context.tag_table_str->len + context.text_str->len); | ||
559 | + | ||
560 | + g_print ("when serializing length is: %d\n", context.tag_table_str->len + context.text_str->len); | ||
561 | + | ||
562 | + g_string_append_len (text, context.tag_table_str->str, context.tag_table_str->len); | ||
563 | + g_string_append_len (text, context.text_str->str, context.text_str->len); | ||
564 | + | ||
565 | + context.pixbufs = g_list_reverse (context.pixbufs); | ||
566 | + serialize_pixbufs (&context, text); | ||
567 | + | ||
568 | + g_hash_table_destroy (context.tags); | ||
569 | + g_list_free (context.pixbufs); | ||
570 | + g_string_free (context.text_str, TRUE); | ||
571 | + g_string_free (context.tag_table_str, TRUE); | ||
572 | + | ||
573 | + *len = text->len; | ||
574 | + | ||
575 | + return g_string_free (text, FALSE); | ||
576 | +} | ||
577 | + | ||
578 | +typedef enum | ||
579 | +{ | ||
580 | + STATE_START, | ||
581 | + STATE_TEXT_VIEW_MARKUP, | ||
582 | + STATE_TAGS, | ||
583 | + STATE_TAG, | ||
584 | + STATE_ATTR, | ||
585 | + STATE_TEXT, | ||
586 | + STATE_APPLY_TAG, | ||
587 | + STATE_PIXBUF | ||
588 | +} ParseState; | ||
589 | + | ||
590 | +typedef struct | ||
591 | +{ | ||
592 | + gchar *text; | ||
593 | + GdkPixbuf *pixbuf; | ||
594 | + GSList *tags; | ||
595 | +} TextSpan; | ||
596 | + | ||
597 | +typedef struct | ||
598 | +{ | ||
599 | + GtkTextTag *tag; | ||
600 | + gint prio; | ||
601 | +} TextTagPrio; | ||
602 | + | ||
603 | +typedef struct | ||
604 | +{ | ||
605 | + GSList *states; | ||
606 | + | ||
607 | + GList *headers; | ||
608 | + | ||
609 | + GtkTextBuffer *buffer; | ||
610 | + | ||
611 | + /* Tags that are defined in <tag> elements */ | ||
612 | + GHashTable *defined_tags; | ||
613 | + | ||
614 | + /* Tag name substitutions */ | ||
615 | + GHashTable *substitutions; | ||
616 | + | ||
617 | + /* Current tag */ | ||
618 | + GtkTextTag *current_tag; | ||
619 | + | ||
620 | + /* Priority of current tag */ | ||
621 | + gint current_tag_prio; | ||
622 | + | ||
623 | + /* Tags and their priorities */ | ||
624 | + GList *tag_priorities; | ||
625 | + | ||
626 | + GSList *tag_stack; | ||
627 | + | ||
628 | + GList *spans; | ||
629 | + | ||
630 | + gboolean create_tags; | ||
631 | + | ||
632 | + gboolean parsed_text; | ||
633 | + gboolean parsed_tags; | ||
634 | +} ParseInfo; | ||
635 | + | ||
636 | +static void | ||
637 | +set_error (GError **err, | ||
638 | + GMarkupParseContext *context, | ||
639 | + int error_domain, | ||
640 | + int error_code, | ||
641 | + const char *format, | ||
642 | + ...) | ||
643 | +{ | ||
644 | + int line, ch; | ||
645 | + va_list args; | ||
646 | + char *str; | ||
647 | + | ||
648 | + g_markup_parse_context_get_position (context, &line, &ch); | ||
649 | + | ||
650 | + va_start (args, format); | ||
651 | + str = g_strdup_vprintf (format, args); | ||
652 | + va_end (args); | ||
653 | + | ||
654 | + g_set_error (err, error_domain, error_code, | ||
655 | + ("Line %d character %d: %s"), | ||
656 | + line, ch, str); | ||
657 | + | ||
658 | + g_free (str); | ||
659 | +} | ||
660 | + | ||
661 | +static void | ||
662 | +push_state (ParseInfo *info, | ||
663 | + ParseState state) | ||
664 | +{ | ||
665 | + info->states = g_slist_prepend (info->states, GINT_TO_POINTER (state)); | ||
666 | +} | ||
667 | + | ||
668 | +static void | ||
669 | +pop_state (ParseInfo *info) | ||
670 | +{ | ||
671 | + g_return_if_fail (info->states != NULL); | ||
672 | + | ||
673 | + info->states = g_slist_remove (info->states, info->states->data); | ||
674 | +} | ||
675 | + | ||
676 | +static ParseState | ||
677 | +peek_state (ParseInfo *info) | ||
678 | +{ | ||
679 | + g_return_val_if_fail (info->states != NULL, STATE_START); | ||
680 | + | ||
681 | + return GPOINTER_TO_INT (info->states->data); | ||
682 | +} | ||
683 | + | ||
684 | +#define ELEMENT_IS(name) (strcmp (element_name, (name)) == 0) | ||
685 | + | ||
686 | +typedef struct | ||
687 | +{ | ||
688 | + const char *name; | ||
689 | + const char **retloc; | ||
690 | +} LocateAttr; | ||
691 | + | ||
692 | +static gboolean | ||
693 | +locate_attributes (GMarkupParseContext *context, | ||
694 | + const char *element_name, | ||
695 | + const char **attribute_names, | ||
696 | + const char **attribute_values, | ||
697 | + GError **error, | ||
698 | + const char *first_attribute_name, | ||
699 | + const char **first_attribute_retloc, | ||
700 | + ...) | ||
701 | +{ | ||
702 | + va_list args; | ||
703 | + const char *name; | ||
704 | + const char **retloc; | ||
705 | + int n_attrs; | ||
706 | +#define MAX_ATTRS 24 | ||
707 | + LocateAttr attrs[MAX_ATTRS]; | ||
708 | + gboolean retval; | ||
709 | + int i; | ||
710 | + | ||
711 | + g_return_val_if_fail (first_attribute_name != NULL, FALSE); | ||
712 | + g_return_val_if_fail (first_attribute_retloc != NULL, FALSE); | ||
713 | + | ||
714 | + retval = TRUE; | ||
715 | + | ||
716 | + n_attrs = 1; | ||
717 | + attrs[0].name = first_attribute_name; | ||
718 | + attrs[0].retloc = first_attribute_retloc; | ||
719 | + *first_attribute_retloc = NULL; | ||
720 | + | ||
721 | + va_start (args, first_attribute_retloc); | ||
722 | + | ||
723 | + name = va_arg (args, const char*); | ||
724 | + retloc = va_arg (args, const char**); | ||
725 | + | ||
726 | + while (name != NULL) | ||
727 | + { | ||
728 | + g_return_val_if_fail (retloc != NULL, FALSE); | ||
729 | + | ||
730 | + g_assert (n_attrs < MAX_ATTRS); | ||
731 | + | ||
732 | + attrs[n_attrs].name = name; | ||
733 | + attrs[n_attrs].retloc = retloc; | ||
734 | + n_attrs += 1; | ||
735 | + *retloc = NULL; | ||
736 | + | ||
737 | + name = va_arg (args, const char*); | ||
738 | + retloc = va_arg (args, const char**); | ||
739 | + } | ||
740 | + | ||
741 | + va_end (args); | ||
742 | + | ||
743 | + if (!retval) | ||
744 | + return retval; | ||
745 | + | ||
746 | + i = 0; | ||
747 | + while (attribute_names[i]) | ||
748 | + { | ||
749 | + int j; | ||
750 | + gboolean found; | ||
751 | + | ||
752 | + found = FALSE; | ||
753 | + j = 0; | ||
754 | + while (j < n_attrs) | ||
755 | + { | ||
756 | + if (strcmp (attrs[j].name, attribute_names[i]) == 0) | ||
757 | + { | ||
758 | + retloc = attrs[j].retloc; | ||
759 | + | ||
760 | + if (*retloc != NULL) | ||
761 | + { | ||
762 | + set_error (error, context, | ||
763 | + G_MARKUP_ERROR, | ||
764 | + G_MARKUP_ERROR_PARSE, | ||
765 | + _("Attribute \"%s\" repeated twice on the same <%s> element"), | ||
766 | + attrs[j].name, element_name); | ||
767 | + retval = FALSE; | ||
768 | + goto out; | ||
769 | + } | ||
770 | + | ||
771 | + *retloc = attribute_values[i]; | ||
772 | + found = TRUE; | ||
773 | + } | ||
774 | + | ||
775 | + ++j; | ||
776 | + } | ||
777 | + | ||
778 | + if (!found) | ||
779 | + { | ||
780 | + set_error (error, context, | ||
781 | + G_MARKUP_ERROR, | ||
782 | + G_MARKUP_ERROR_PARSE, | ||
783 | + _("Attribute \"%s\" is invalid on <%s> element in this context"), | ||
784 | + attribute_names[i], element_name); | ||
785 | + retval = FALSE; | ||
786 | + goto out; | ||
787 | + } | ||
788 | + | ||
789 | + ++i; | ||
790 | + } | ||
791 | + | ||
792 | + out: | ||
793 | + return retval; | ||
794 | +} | ||
795 | + | ||
796 | +static gboolean | ||
797 | +check_no_attributes (GMarkupParseContext *context, | ||
798 | + const char *element_name, | ||
799 | + const char **attribute_names, | ||
800 | + const char **attribute_values, | ||
801 | + GError **error) | ||
802 | +{ | ||
803 | + if (attribute_names[0] != NULL) | ||
804 | + { | ||
805 | + set_error (error, context, | ||
806 | + G_MARKUP_ERROR, | ||
807 | + G_MARKUP_ERROR_PARSE, | ||
808 | + _("Attribute \"%s\" is invalid on <%s> element in this context"), | ||
809 | + attribute_names[0], element_name); | ||
810 | + return FALSE; | ||
811 | + } | ||
812 | + | ||
813 | + return TRUE; | ||
814 | +} | ||
815 | + | ||
816 | +static const gchar * | ||
817 | +tag_exists (GMarkupParseContext *context, | ||
818 | + const gchar *name, | ||
819 | + ParseInfo *info, | ||
820 | + GError **error) | ||
821 | +{ | ||
822 | + const gchar *real_name; | ||
823 | + | ||
824 | + if (info->create_tags) | ||
825 | + { | ||
826 | + /* First, try the substitutions */ | ||
827 | + real_name = g_hash_table_lookup (info->substitutions, name); | ||
828 | + | ||
829 | + if (real_name) | ||
830 | + return real_name; | ||
831 | + | ||
832 | + /* Next, try the list of defined tags */ | ||
833 | + if (g_hash_table_lookup (info->defined_tags, name) != NULL) | ||
834 | + return name; | ||
835 | + | ||
836 | + set_error (error, context, | ||
837 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
838 | + _("Tag \"%s\" has not been defined."), name); | ||
839 | + | ||
840 | + return NULL; | ||
841 | + } | ||
842 | + else | ||
843 | + { | ||
844 | + if (gtk_text_tag_table_lookup (info->buffer->tag_table, name) != NULL) | ||
845 | + return name; | ||
846 | + | ||
847 | + set_error (error, context, | ||
848 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
849 | + _("Tag \"%s\" does not exist in buffer and tags can not be created."), name); | ||
850 | + | ||
851 | + return NULL; | ||
852 | + } | ||
853 | +} | ||
854 | + | ||
855 | +typedef struct | ||
856 | +{ | ||
857 | + const gchar *id; | ||
858 | + gint length; | ||
859 | + const gchar *start; | ||
860 | +} Header; | ||
861 | + | ||
862 | +static GdkPixbuf * | ||
863 | +get_pixbuf_from_headers (GList *headers, int id, GError **error) | ||
864 | +{ | ||
865 | + Header *header; | ||
866 | + GdkPixdata pixdata; | ||
867 | + GdkPixbuf *pixbuf; | ||
868 | + | ||
869 | + header = g_list_nth_data (headers, id); | ||
870 | + | ||
871 | + if (!header) | ||
872 | + return NULL; | ||
873 | + | ||
874 | + if (!gdk_pixdata_deserialize (&pixdata, header->length, header->start, error)) | ||
875 | + return NULL; | ||
876 | + | ||
877 | + pixbuf = gdk_pixbuf_from_pixdata (&pixdata, TRUE, error); | ||
878 | + | ||
879 | + g_print ("pixbuf is: %p\n", pixbuf); | ||
880 | + | ||
881 | + return pixbuf; | ||
882 | +} | ||
883 | + | ||
884 | +static void | ||
885 | +parse_apply_tag_element (GMarkupParseContext *context, | ||
886 | + const gchar *element_name, | ||
887 | + const gchar **attribute_names, | ||
888 | + const gchar **attribute_values, | ||
889 | + ParseInfo *info, | ||
890 | + GError **error) | ||
891 | +{ | ||
892 | + const gchar *name, *tag_name, *id; | ||
893 | + | ||
894 | + g_assert (peek_state (info) == STATE_TEXT || | ||
895 | + peek_state (info) == STATE_APPLY_TAG); | ||
896 | + | ||
897 | + if (ELEMENT_IS ("apply_tag")) | ||
898 | + { | ||
899 | + if (!locate_attributes (context, element_name, attribute_names, attribute_values, error, | ||
900 | + "name", &name, NULL)) | ||
901 | + return; | ||
902 | + | ||
903 | + tag_name = tag_exists (context, name, info, error); | ||
904 | + | ||
905 | + if (!tag_name) | ||
906 | + return; | ||
907 | + | ||
908 | + info->tag_stack = g_slist_prepend (info->tag_stack, g_strdup (tag_name)); | ||
909 | + | ||
910 | + push_state (info, STATE_APPLY_TAG); | ||
911 | + } | ||
912 | + else if (ELEMENT_IS ("pixbuf")) | ||
913 | + { | ||
914 | + int int_id; | ||
915 | + GdkPixbuf *pixbuf; | ||
916 | + TextSpan *span; | ||
917 | + | ||
918 | + if (!locate_attributes (context, element_name, attribute_names, attribute_values, error, | ||
919 | + "index", &id, NULL)) | ||
920 | + return; | ||
921 | + | ||
922 | + int_id = atoi (id); | ||
923 | + pixbuf = get_pixbuf_from_headers (info->headers, int_id, error); | ||
924 | + | ||
925 | + span = g_new0 (TextSpan, 1); | ||
926 | + span->pixbuf = pixbuf; | ||
927 | + span->tags = NULL; | ||
928 | + | ||
929 | + info->spans = g_list_prepend (info->spans, span); | ||
930 | + | ||
931 | + if (!pixbuf) | ||
932 | + return; | ||
933 | + | ||
934 | + push_state (info, STATE_PIXBUF); | ||
935 | + } | ||
936 | + else | ||
937 | + set_error (error, context, | ||
938 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
939 | + _("Element <%s> is not allowed below <%s>"), | ||
940 | + element_name, peek_state(info) == STATE_TEXT ? "text" : "apply_tag"); | ||
941 | +} | ||
942 | + | ||
943 | +static void | ||
944 | +parse_attr_element (GMarkupParseContext *context, | ||
945 | + const gchar *element_name, | ||
946 | + const gchar **attribute_names, | ||
947 | + const gchar **attribute_values, | ||
948 | + ParseInfo *info, | ||
949 | + GError **error) | ||
950 | +{ | ||
951 | + const gchar *name, *type, *value; | ||
952 | + GType gtype; | ||
953 | + GValue gvalue = { 0 }; | ||
954 | + GParamSpec *pspec; | ||
955 | + | ||
956 | + g_assert (peek_state (info) == STATE_TAG); | ||
957 | + | ||
958 | + if (ELEMENT_IS ("attr")) | ||
959 | + { | ||
960 | + if (!locate_attributes (context, element_name, attribute_names, attribute_values, error, | ||
961 | + "name", &name, "type", &type, "value", &value, NULL)) | ||
962 | + return; | ||
963 | + | ||
964 | + gtype = g_type_from_name (type); | ||
965 | + | ||
966 | + if (gtype == G_TYPE_INVALID) | ||
967 | + { | ||
968 | + set_error (error, context, | ||
969 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
970 | + _("\"%s\" is not a valid attribute type"), type); | ||
971 | + return; | ||
972 | + } | ||
973 | + | ||
974 | + if (!(pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (info->current_tag), name))) | ||
975 | + { | ||
976 | + set_error (error, context, | ||
977 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
978 | + _("\"%s\" is not a valid attribute name"), name); | ||
979 | + return; | ||
980 | + } | ||
981 | + | ||
982 | + g_value_init (&gvalue, gtype); | ||
983 | + | ||
984 | + if (!deserialize_value (value, &gvalue)) | ||
985 | + { | ||
986 | + set_error (error, context, | ||
987 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
988 | + _("\"%s\" could not be converted to a value of type \"%s\" for attribute \"%s\""), | ||
989 | + value, type, name); | ||
990 | + return; | ||
991 | + } | ||
992 | + | ||
993 | + if (g_param_value_validate (pspec, &gvalue)) | ||
994 | + { | ||
995 | + set_error (error, context, | ||
996 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
997 | + _("\"%s\" is not a valid value of for attribute \"%s\""), | ||
998 | + value, name); | ||
999 | + g_value_unset (&gvalue); | ||
1000 | + return; | ||
1001 | + } | ||
1002 | + | ||
1003 | + g_object_set_property (G_OBJECT (info->current_tag), | ||
1004 | + name, &gvalue); | ||
1005 | + | ||
1006 | + g_value_unset (&gvalue); | ||
1007 | + | ||
1008 | + push_state (info, STATE_ATTR); | ||
1009 | + } | ||
1010 | + else | ||
1011 | + { | ||
1012 | + set_error (error, context, | ||
1013 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1014 | + _("Element <%s> is not allowed below <%s>"), | ||
1015 | + element_name, "tag"); | ||
1016 | + } | ||
1017 | +} | ||
1018 | + | ||
1019 | + | ||
1020 | +static gchar * | ||
1021 | +get_tag_name (ParseInfo *info, | ||
1022 | + const gchar *tag_name) | ||
1023 | +{ | ||
1024 | + gchar *name; | ||
1025 | + gint i; | ||
1026 | + | ||
1027 | + name = g_strdup (tag_name); | ||
1028 | + | ||
1029 | + if (!info->create_tags) | ||
1030 | + return name; | ||
1031 | + | ||
1032 | + i = 0; | ||
1033 | + | ||
1034 | + while (gtk_text_tag_table_lookup (info->buffer->tag_table, name) != NULL) | ||
1035 | + { | ||
1036 | + g_free (name); | ||
1037 | + name = g_strdup_printf ("%s-%d", tag_name, ++i); | ||
1038 | + } | ||
1039 | + | ||
1040 | + if (i != 0) | ||
1041 | + { | ||
1042 | + g_hash_table_insert (info->substitutions, g_strdup (tag_name), g_strdup (name)); | ||
1043 | + } | ||
1044 | + | ||
1045 | + return name; | ||
1046 | +} | ||
1047 | + | ||
1048 | +static void | ||
1049 | +parse_tag_element (GMarkupParseContext *context, | ||
1050 | + const gchar *element_name, | ||
1051 | + const gchar **attribute_names, | ||
1052 | + const gchar **attribute_values, | ||
1053 | + ParseInfo *info, | ||
1054 | + GError **error) | ||
1055 | +{ | ||
1056 | + const gchar *name, *priority; | ||
1057 | + gchar *tag_name; | ||
1058 | + gint prio; | ||
1059 | + gchar *tmp; | ||
1060 | + | ||
1061 | + g_assert (peek_state (info) == STATE_TAGS); | ||
1062 | + | ||
1063 | + if (ELEMENT_IS ("tag")) | ||
1064 | + { | ||
1065 | + if (!locate_attributes (context, element_name, attribute_names, attribute_values, error, | ||
1066 | + "name", &name, "priority", &priority, NULL)) | ||
1067 | + return; | ||
1068 | + | ||
1069 | + if (g_hash_table_lookup (info->defined_tags, name) != NULL) | ||
1070 | + { | ||
1071 | + set_error (error, context, | ||
1072 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1073 | + _("Tag \"%s\" already defined"), name); | ||
1074 | + return; | ||
1075 | + } | ||
1076 | + | ||
1077 | + prio = strtol (priority, &tmp, 10); | ||
1078 | + | ||
1079 | + if (tmp == NULL || tmp == priority) | ||
1080 | + { | ||
1081 | + set_error (error, context, | ||
1082 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1083 | + _("Tag \"%s\" has invalid priority \"%s\""), name, priority); | ||
1084 | + return; | ||
1085 | + } | ||
1086 | + | ||
1087 | + tag_name = get_tag_name (info, name); | ||
1088 | + info->current_tag = gtk_text_tag_new (tag_name); | ||
1089 | + info->current_tag_prio = prio; | ||
1090 | + | ||
1091 | + g_free (tag_name); | ||
1092 | + | ||
1093 | + push_state (info, STATE_TAG); | ||
1094 | + } | ||
1095 | + else | ||
1096 | + { | ||
1097 | + set_error (error, context, | ||
1098 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1099 | + _("Element <%s> is not allowed below <%s>"), | ||
1100 | + element_name, "tags"); | ||
1101 | + } | ||
1102 | +} | ||
1103 | + | ||
1104 | +static void | ||
1105 | +start_element_handler (GMarkupParseContext *context, | ||
1106 | + const gchar *element_name, | ||
1107 | + const gchar **attribute_names, | ||
1108 | + const gchar **attribute_values, | ||
1109 | + gpointer user_data, | ||
1110 | + GError **error) | ||
1111 | +{ | ||
1112 | + ParseInfo *info = user_data; | ||
1113 | + | ||
1114 | + switch (peek_state (info)) | ||
1115 | + { | ||
1116 | + case STATE_START: | ||
1117 | + if (ELEMENT_IS ("text_view_markup")) | ||
1118 | + { | ||
1119 | + if (!check_no_attributes (context, element_name, | ||
1120 | + attribute_names, attribute_values, error)) | ||
1121 | + return; | ||
1122 | + | ||
1123 | + push_state (info, STATE_TEXT_VIEW_MARKUP); | ||
1124 | + break; | ||
1125 | + } | ||
1126 | + else | ||
1127 | + set_error (error, context, G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1128 | + _("Outermost element in text must be <text_view_markup> not <%s>"), | ||
1129 | + element_name); | ||
1130 | + break; | ||
1131 | + case STATE_TEXT_VIEW_MARKUP: | ||
1132 | + if (ELEMENT_IS ("tags")) | ||
1133 | + { | ||
1134 | + if (info->parsed_tags) | ||
1135 | + { | ||
1136 | + set_error (error, context, G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1137 | + _("A <tags> element has already been specified")); | ||
1138 | + return; | ||
1139 | + } | ||
1140 | + | ||
1141 | + if (!check_no_attributes (context, element_name, | ||
1142 | + attribute_names, attribute_values, error)) | ||
1143 | + return; | ||
1144 | + | ||
1145 | + push_state (info, STATE_TAGS); | ||
1146 | + break; | ||
1147 | + } | ||
1148 | + else if (ELEMENT_IS ("text")) | ||
1149 | + { | ||
1150 | + if (info->parsed_text) | ||
1151 | + { | ||
1152 | + set_error (error, context, G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1153 | + _("A <text> element has already been specified")); | ||
1154 | + return; | ||
1155 | + } | ||
1156 | + else if (!info->parsed_tags) | ||
1157 | + { | ||
1158 | + set_error (error, context, G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1159 | + _("A <text> element can't occur before a <tags> element")); | ||
1160 | + return; | ||
1161 | + } | ||
1162 | + | ||
1163 | + if (!check_no_attributes (context, element_name, | ||
1164 | + attribute_names, attribute_values, error)) | ||
1165 | + return; | ||
1166 | + | ||
1167 | + push_state (info, STATE_TEXT); | ||
1168 | + break; | ||
1169 | + } | ||
1170 | + else | ||
1171 | + set_error (error, context, | ||
1172 | + G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE, | ||
1173 | + _("Element <%s> is not allowed below <%s>"), | ||
1174 | + element_name, "text_view_markup"); | ||
1175 | + break; | ||
1176 | + case STATE_TAGS: | ||
1177 | + parse_tag_element (context, element_name, | ||
1178 | + attribute_names, attribute_values, | ||
1179 | + info, error); | ||
1180 | + break; | ||
1181 | + case STATE_TAG: | ||
1182 | + parse_attr_element (context, element_name, | ||
1183 | + attribute_names, attribute_values, | ||
1184 | + info, error); | ||
1185 | + break; | ||
1186 | + case STATE_TEXT: | ||
1187 | + case STATE_APPLY_TAG: | ||
1188 | + parse_apply_tag_element (context, element_name, | ||
1189 | + attribute_names, attribute_values, | ||
1190 | + info, error); | ||
1191 | + break; | ||
1192 | + default: | ||
1193 | + g_assert_not_reached (); | ||
1194 | + break; | ||
1195 | + } | ||
1196 | +} | ||
1197 | + | ||
1198 | +static gint | ||
1199 | +sort_tag_prio (TextTagPrio *a, | ||
1200 | + TextTagPrio *b) | ||
1201 | +{ | ||
1202 | + if (a->prio < b->prio) | ||
1203 | + return -1; | ||
1204 | + else if (a->prio > b->prio) | ||
1205 | + return 1; | ||
1206 | + else | ||
1207 | + return 0; | ||
1208 | +} | ||
1209 | + | ||
1210 | +static void | ||
1211 | +end_element_handler (GMarkupParseContext *context, | ||
1212 | + const gchar *element_name, | ||
1213 | + gpointer user_data, | ||
1214 | + GError **error) | ||
1215 | +{ | ||
1216 | + ParseInfo *info = user_data; | ||
1217 | + gchar *tmp; | ||
1218 | + GList *list; | ||
1219 | + | ||
1220 | + switch (peek_state (info)) | ||
1221 | + { | ||
1222 | + case STATE_TAGS: | ||
1223 | + pop_state (info); | ||
1224 | + g_assert (peek_state (info) == STATE_TEXT_VIEW_MARKUP); | ||
1225 | + | ||
1226 | + info->parsed_tags = TRUE; | ||
1227 | + | ||
1228 | + /* Sort list and add the tags */ | ||
1229 | + info->tag_priorities = g_list_sort (info->tag_priorities, | ||
1230 | + (GCompareFunc)sort_tag_prio); | ||
1231 | + list = info->tag_priorities; | ||
1232 | + while (list) | ||
1233 | + { | ||
1234 | + TextTagPrio *prio = list->data; | ||
1235 | + | ||
1236 | + if (info->create_tags) | ||
1237 | + gtk_text_tag_table_add (info->buffer->tag_table, prio->tag); | ||
1238 | + | ||
1239 | + g_object_unref (prio->tag); | ||
1240 | + prio->tag = NULL; | ||
1241 | + | ||
1242 | + list = list->next; | ||
1243 | + } | ||
1244 | + | ||
1245 | + break; | ||
1246 | + case STATE_TAG: | ||
1247 | + pop_state (info); | ||
1248 | + g_assert (peek_state (info) == STATE_TAGS); | ||
1249 | + | ||
1250 | + /* Add tag to defined tags hash */ | ||
1251 | + tmp = g_strdup (info->current_tag->name); | ||
1252 | + g_hash_table_insert (info->defined_tags, | ||
1253 | + tmp, tmp); | ||
1254 | + | ||
1255 | + if (info->create_tags) | ||
1256 | + { | ||
1257 | + TextTagPrio *prio; | ||
1258 | + | ||
1259 | + /* add the tag to the list */ | ||
1260 | + prio = g_new0 (TextTagPrio, 1); | ||
1261 | + prio->prio = info->current_tag_prio; | ||
1262 | + prio->tag = info->current_tag; | ||
1263 | + | ||
1264 | + info->tag_priorities = g_list_prepend (info->tag_priorities, prio); | ||
1265 | + } | ||
1266 | + | ||
1267 | + info->current_tag = NULL; | ||
1268 | + break; | ||
1269 | + case STATE_ATTR: | ||
1270 | + pop_state (info); | ||
1271 | + g_assert (peek_state (info) == STATE_TAG); | ||
1272 | + break; | ||
1273 | + case STATE_APPLY_TAG: | ||
1274 | + pop_state (info); | ||
1275 | + g_assert (peek_state (info) == STATE_APPLY_TAG || | ||
1276 | + peek_state (info) == STATE_TEXT); | ||
1277 | + | ||
1278 | + /* Pop tag */ | ||
1279 | + g_free (info->tag_stack->data); | ||
1280 | + info->tag_stack = g_slist_delete_link (info->tag_stack, | ||
1281 | + info->tag_stack); | ||
1282 | + | ||
1283 | + break; | ||
1284 | + case STATE_TEXT: | ||
1285 | + pop_state (info); | ||
1286 | + g_assert (peek_state (info) == STATE_TEXT_VIEW_MARKUP); | ||
1287 | + | ||
1288 | + info->spans = g_list_reverse (info->spans); | ||
1289 | + info->parsed_text = TRUE; | ||
1290 | + break; | ||
1291 | + case STATE_TEXT_VIEW_MARKUP: | ||
1292 | + pop_state (info); | ||
1293 | + g_assert (peek_state (info) == STATE_START); | ||
1294 | + break; | ||
1295 | + case STATE_PIXBUF: | ||
1296 | + pop_state (info); | ||
1297 | + g_assert (peek_state (info) == STATE_APPLY_TAG || | ||
1298 | + peek_state (info) == STATE_TEXT); | ||
1299 | + break; | ||
1300 | + default: | ||
1301 | + g_assert_not_reached (); | ||
1302 | + break; | ||
1303 | + } | ||
1304 | +} | ||
1305 | + | ||
1306 | +static gboolean | ||
1307 | +all_whitespace (const char *text, | ||
1308 | + int text_len) | ||
1309 | +{ | ||
1310 | + const char *p; | ||
1311 | + const char *end; | ||
1312 | + | ||
1313 | + p = text; | ||
1314 | + end = text + text_len; | ||
1315 | + | ||
1316 | + while (p != end) | ||
1317 | + { | ||
1318 | + if (!g_ascii_isspace (*p)) | ||
1319 | + return FALSE; | ||
1320 | + | ||
1321 | + p = g_utf8_next_char (p); | ||
1322 | + } | ||
1323 | + | ||
1324 | + return TRUE; | ||
1325 | +} | ||
1326 | + | ||
1327 | +static GSList * | ||
1328 | +copy_tag_list (GSList *tag_list) | ||
1329 | +{ | ||
1330 | + GSList *tmp = NULL; | ||
1331 | + | ||
1332 | + while (tag_list) | ||
1333 | + { | ||
1334 | + tmp = g_slist_prepend (tmp, g_strdup (tag_list->data)); | ||
1335 | + | ||
1336 | + tag_list = tag_list->next; | ||
1337 | + } | ||
1338 | + | ||
1339 | + return tmp; | ||
1340 | +} | ||
1341 | + | ||
1342 | +static void | ||
1343 | +text_handler (GMarkupParseContext *context, | ||
1344 | + const gchar *text, | ||
1345 | + gsize text_len, | ||
1346 | + gpointer user_data, | ||
1347 | + GError **error) | ||
1348 | +{ | ||
1349 | + ParseInfo *info = user_data; | ||
1350 | + TextSpan *span; | ||
1351 | + | ||
1352 | + if (all_whitespace (text, text_len) && | ||
1353 | + peek_state (info) != STATE_TEXT && | ||
1354 | + peek_state (info) != STATE_APPLY_TAG) | ||
1355 | + return; | ||
1356 | + | ||
1357 | + switch (peek_state (info)) | ||
1358 | + { | ||
1359 | + case STATE_START: | ||
1360 | + g_assert_not_reached (); /* gmarkup shouldn't do this */ | ||
1361 | + break; | ||
1362 | + case STATE_TEXT: | ||
1363 | + case STATE_APPLY_TAG: | ||
1364 | + if (text_len == 0) | ||
1365 | + return; | ||
1366 | + | ||
1367 | + span = g_new0 (TextSpan, 1); | ||
1368 | + span->text = g_strndup (text, text_len); | ||
1369 | + span->tags = copy_tag_list (info->tag_stack); | ||
1370 | + | ||
1371 | + info->spans = g_list_prepend (info->spans, span); | ||
1372 | + break; | ||
1373 | + default: | ||
1374 | + g_assert_not_reached (); | ||
1375 | + break; | ||
1376 | + } | ||
1377 | +} | ||
1378 | + | ||
1379 | +static void | ||
1380 | +parse_info_init (ParseInfo *info, | ||
1381 | + GtkTextBuffer *buffer, | ||
1382 | + gboolean create_tags, | ||
1383 | + GList *headers) | ||
1384 | +{ | ||
1385 | + info->states = g_slist_prepend (NULL, GINT_TO_POINTER (STATE_START)); | ||
1386 | + | ||
1387 | + info->create_tags = create_tags; | ||
1388 | + info->headers = headers; | ||
1389 | + info->defined_tags = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); | ||
1390 | + info->substitutions = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free); | ||
1391 | + info->tag_stack = NULL; | ||
1392 | + info->spans = NULL; | ||
1393 | + info->parsed_text = FALSE; | ||
1394 | + info->parsed_tags = FALSE; | ||
1395 | + info->current_tag = NULL; | ||
1396 | + info->current_tag_prio = -1; | ||
1397 | + info->tag_priorities = NULL; | ||
1398 | + | ||
1399 | + info->buffer = buffer; | ||
1400 | +} | ||
1401 | + | ||
1402 | +static void | ||
1403 | +text_span_free (TextSpan *span) | ||
1404 | +{ | ||
1405 | + GSList *tmp; | ||
1406 | + | ||
1407 | + g_free (span->text); | ||
1408 | + | ||
1409 | + tmp = span->tags; | ||
1410 | + while (tmp) | ||
1411 | + { | ||
1412 | + g_free (tmp->data); | ||
1413 | + | ||
1414 | + tmp = tmp->next; | ||
1415 | + } | ||
1416 | + g_slist_free (span->tags); | ||
1417 | + g_free (span); | ||
1418 | +} | ||
1419 | + | ||
1420 | +static void | ||
1421 | +parse_info_free (ParseInfo *info) | ||
1422 | +{ | ||
1423 | + GSList *slist; | ||
1424 | + GList *list; | ||
1425 | + | ||
1426 | + slist = info->tag_stack; | ||
1427 | + while (slist) | ||
1428 | + { | ||
1429 | + g_free (slist->data); | ||
1430 | + | ||
1431 | + slist = slist->next; | ||
1432 | + } | ||
1433 | + | ||
1434 | + g_slist_free (info->tag_stack); | ||
1435 | + g_slist_free (info->states); | ||
1436 | + | ||
1437 | + g_hash_table_destroy (info->substitutions); | ||
1438 | + g_hash_table_destroy (info->defined_tags); | ||
1439 | + | ||
1440 | + if (info->current_tag) | ||
1441 | + g_object_unref (info->current_tag); | ||
1442 | + | ||
1443 | + list = info->spans; | ||
1444 | + while (list) | ||
1445 | + { | ||
1446 | + text_span_free (list->data); | ||
1447 | + | ||
1448 | + list = list->next; | ||
1449 | + } | ||
1450 | + g_list_free (info->spans); | ||
1451 | + | ||
1452 | + list = info->tag_priorities; | ||
1453 | + while (list) | ||
1454 | + { | ||
1455 | + TextTagPrio *prio = list->data; | ||
1456 | + | ||
1457 | + if (prio->tag) | ||
1458 | + g_object_unref (prio->tag); | ||
1459 | + g_free (prio); | ||
1460 | + | ||
1461 | + list = list->next; | ||
1462 | + } | ||
1463 | + g_list_free (info->tag_priorities); | ||
1464 | + | ||
1465 | +} | ||
1466 | + | ||
1467 | +static const gchar * | ||
1468 | +get_tag_substitution (ParseInfo *info, | ||
1469 | + const gchar *name) | ||
1470 | +{ | ||
1471 | + gchar *subst; | ||
1472 | + | ||
1473 | + if ((subst = g_hash_table_lookup (info->substitutions, name))) | ||
1474 | + return subst; | ||
1475 | + else | ||
1476 | + return name; | ||
1477 | +} | ||
1478 | + | ||
1479 | +static void | ||
1480 | +insert_text (ParseInfo *info, | ||
1481 | + GtkTextIter *iter) | ||
1482 | +{ | ||
1483 | + GtkTextIter start_iter; | ||
1484 | + GtkTextMark *mark; | ||
1485 | + GList *tmp; | ||
1486 | + GSList *tags; | ||
1487 | + | ||
1488 | + start_iter = *iter; | ||
1489 | + | ||
1490 | + mark = gtk_text_buffer_create_mark (info->buffer, "deserialize_insert_point", | ||
1491 | + &start_iter, TRUE); | ||
1492 | + | ||
1493 | + tmp = info->spans; | ||
1494 | + while (tmp) | ||
1495 | + { | ||
1496 | + TextSpan *span = tmp->data; | ||
1497 | + | ||
1498 | + if (span->text) | ||
1499 | + gtk_text_buffer_insert (info->buffer, iter, span->text, -1); | ||
1500 | + else | ||
1501 | + { | ||
1502 | + gtk_text_buffer_insert_pixbuf (info->buffer, iter, span->pixbuf); | ||
1503 | + g_object_unref (span->pixbuf); | ||
1504 | + } | ||
1505 | + gtk_text_buffer_get_iter_at_mark (info->buffer, &start_iter, mark); | ||
1506 | + | ||
1507 | + /* Apply tags */ | ||
1508 | + tags = span->tags; | ||
1509 | + while (tags) | ||
1510 | + { | ||
1511 | + const gchar *tag_name = get_tag_substitution (info, tags->data); | ||
1512 | + | ||
1513 | + gtk_text_buffer_apply_tag_by_name (info->buffer, tag_name, | ||
1514 | + &start_iter, iter); | ||
1515 | + | ||
1516 | + tags = tags->next; | ||
1517 | + } | ||
1518 | + | ||
1519 | + gtk_text_buffer_move_mark (info->buffer, mark, iter); | ||
1520 | + | ||
1521 | + tmp = tmp->next; | ||
1522 | + } | ||
1523 | + | ||
1524 | + gtk_text_buffer_delete_mark (info->buffer, mark); | ||
1525 | +} | ||
1526 | + | ||
1527 | + | ||
1528 | + | ||
1529 | +static int | ||
1530 | +read_int (const guchar *start) | ||
1531 | +{ | ||
1532 | + int result; | ||
1533 | + | ||
1534 | + result = | ||
1535 | + start[0] << 24 | | ||
1536 | + start[1] << 16 | | ||
1537 | + start[2] << 8 | | ||
1538 | + start[3]; | ||
1539 | + | ||
1540 | + return result; | ||
1541 | +} | ||
1542 | + | ||
1543 | +static gboolean | ||
1544 | +header_is (Header *header, const gchar *id) | ||
1545 | +{ | ||
1546 | + return (strncmp (header->id, id, 8) == 0); | ||
1547 | +} | ||
1548 | + | ||
1549 | +static GList * | ||
1550 | +read_headers (const gchar *start, | ||
1551 | + gint len, | ||
1552 | + GError **error) | ||
1553 | +{ | ||
1554 | + int i = 0; | ||
1555 | + int section_len; | ||
1556 | + Header *header; | ||
1557 | + GList *headers = NULL; | ||
1558 | + | ||
1559 | + while (i < len) | ||
1560 | + { | ||
1561 | + if (i + 12 >= len) | ||
1562 | + goto error; | ||
1563 | + | ||
1564 | + if (strncmp (start + i, "RICHTEXT", 8) == 0 || | ||
1565 | + strncmp (start + i, "PIXBDATA", 8) == 0) | ||
1566 | + { | ||
1567 | + | ||
1568 | + section_len = read_int (start + i + 8); | ||
1569 | + | ||
1570 | + if (i + 12 + section_len > len) | ||
1571 | + goto error; | ||
1572 | + | ||
1573 | + header = g_new0 (Header, 1); | ||
1574 | + header->id = start + i; | ||
1575 | + header->length = section_len; | ||
1576 | + header->start = start + i + 12; | ||
1577 | + | ||
1578 | + i += 12 + section_len; | ||
1579 | + | ||
1580 | + headers = g_list_prepend (headers, header); | ||
1581 | + } | ||
1582 | + else | ||
1583 | + break; | ||
1584 | + | ||
1585 | + } | ||
1586 | + | ||
1587 | + return g_list_reverse (headers); | ||
1588 | + | ||
1589 | + error: | ||
1590 | + g_list_foreach (headers, (GFunc) g_free, NULL); | ||
1591 | + g_list_free (headers); | ||
1592 | + | ||
1593 | + g_set_error (error, | ||
1594 | + G_MARKUP_ERROR, | ||
1595 | + G_MARKUP_ERROR_PARSE, | ||
1596 | + _("Serialized data is malformed")); | ||
1597 | + | ||
1598 | + return NULL; | ||
1599 | +} | ||
1600 | + | ||
1601 | +static gboolean | ||
1602 | +deserialize_text (GtkTextBuffer *buffer, | ||
1603 | + GtkTextIter *iter, | ||
1604 | + const gchar *text, | ||
1605 | + gint len, | ||
1606 | + gboolean create_tags, | ||
1607 | + GError **error, | ||
1608 | + GList *headers) | ||
1609 | +{ | ||
1610 | + GMarkupParseContext *context; | ||
1611 | + ParseInfo info; | ||
1612 | + gboolean retval = FALSE; | ||
1613 | + | ||
1614 | + | ||
1615 | + static GMarkupParser rich_text_parser = { | ||
1616 | + start_element_handler, | ||
1617 | + end_element_handler, | ||
1618 | + text_handler, | ||
1619 | + NULL, | ||
1620 | + NULL | ||
1621 | + }; | ||
1622 | + | ||
1623 | + parse_info_init (&info, buffer, create_tags, headers); | ||
1624 | + | ||
1625 | + context = g_markup_parse_context_new (&rich_text_parser, | ||
1626 | + 0, &info, NULL); | ||
1627 | + | ||
1628 | + if (!g_markup_parse_context_parse (context, | ||
1629 | + text, | ||
1630 | + len, | ||
1631 | + error)) | ||
1632 | + goto out; | ||
1633 | + | ||
1634 | + if (!g_markup_parse_context_end_parse (context, error)) | ||
1635 | + goto out; | ||
1636 | + | ||
1637 | + retval = TRUE; | ||
1638 | + | ||
1639 | + /* Now insert the text */ | ||
1640 | + insert_text (&info, iter); | ||
1641 | + | ||
1642 | + out: | ||
1643 | + parse_info_free (&info); | ||
1644 | + | ||
1645 | + g_markup_parse_context_free (context); | ||
1646 | + | ||
1647 | + return retval; | ||
1648 | +} | ||
1649 | + | ||
1650 | +gboolean | ||
1651 | +gtk_text_buffer_deserialize_rich_text (GtkTextBuffer *buffer, | ||
1652 | + GtkTextIter *iter, | ||
1653 | + const gchar *text, | ||
1654 | + gint len, | ||
1655 | + gboolean create_tags, | ||
1656 | + GError **error) | ||
1657 | +{ | ||
1658 | + GList *headers; | ||
1659 | + Header *header; | ||
1660 | + gboolean retval; | ||
1661 | + | ||
1662 | + headers = read_headers (text, len, error); | ||
1663 | + | ||
1664 | + if (!headers) | ||
1665 | + return FALSE; | ||
1666 | + | ||
1667 | + header = headers->data; | ||
1668 | + if (!header_is (header, "RICHTEXT")) | ||
1669 | + { | ||
1670 | + g_set_error (error, | ||
1671 | + G_MARKUP_ERROR, | ||
1672 | + G_MARKUP_ERROR_PARSE, | ||
1673 | + _("Serialized data is malformed. First section isn't RICHTEXT")); | ||
1674 | + | ||
1675 | + retval = FALSE; | ||
1676 | + goto out; | ||
1677 | + } | ||
1678 | + | ||
1679 | + retval = deserialize_text (buffer, iter, | ||
1680 | + header->start, header->length, | ||
1681 | + create_tags, error, headers->next); | ||
1682 | + | ||
1683 | + out: | ||
1684 | + g_list_foreach (headers, (GFunc)g_free, NULL); | ||
1685 | + g_list_free (headers); | ||
1686 | + | ||
1687 | + return retval; | ||
1688 | +} | ||