1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
3 * Copyright (C) 2005, Teemu Tervo <teemu.tervo@gmx.net>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include <glib/gi18n.h>
23 #include <libgnomevfs/gnome-vfs-mime-utils.h>
25 #include "comics-document.h"
26 #include "ev-document-misc.h"
27 #include "ev-document-thumbnails.h"
29 struct _ComicsDocumentClass
31 GObjectClass parent_class;
34 struct _ComicsDocument
36 GObject parent_instance;
41 char *extract_command;
45 typedef struct _ComicsDocumentClass ComicsDocumentClass;
47 static void comics_document_document_iface_init (EvDocumentIface *iface);
48 static void comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
50 static GSList* get_supported_image_extensions (void);
51 static void get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
53 static void render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
57 static char** extract_argv (EvDocument *document,
61 G_DEFINE_TYPE_WITH_CODE (
62 ComicsDocument, comics_document, G_TYPE_OBJECT,
64 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
65 comics_document_document_iface_init);
66 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
67 comics_document_document_thumbnails_iface_init);
71 comics_regex_quote (const char *s)
75 d = ret = g_malloc (strlen (s) * 4 + 3);
79 for (; *s; s++, d++) {
103 comics_document_load (EvDocument *document,
107 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
108 GSList *supported_extensions;
109 gchar *list_files_command = NULL, *stdout, *quoted_file, *mime_type;
114 comics_document->archive = g_filename_from_uri (uri, NULL, error);
115 g_return_val_if_fail (comics_document->archive != NULL, FALSE);
117 quoted_file = g_shell_quote (comics_document->archive);
118 mime_type = gnome_vfs_get_mime_type (uri);
120 /* FIXME, use proper cbr/cbz mime types once they're
121 * included in shared-mime-info */
122 if (!strcmp (mime_type, "application/x-cbr")) {
123 comics_document->extract_command =
124 g_strdup ("unrar p -c- -ierr");
126 g_strdup_printf ("unrar vb -c- -- %s", quoted_file);
127 comics_document->regex_arg = FALSE;
128 } else if (!strcmp (mime_type, "application/x-cbz")) {
129 comics_document->extract_command =
130 g_strdup ("unzip -p -C");
132 g_strdup_printf ("zipinfo -1 -- %s", quoted_file);
133 comics_document->regex_arg = TRUE;
136 g_free (quoted_file);
138 /* Get list of files in archive */
139 success = g_spawn_command_line_sync (list_files_command,
140 &stdout, NULL, &retval, error);
141 g_free (list_files_command);
146 } else if (retval != 0) {
149 EV_DOCUMENT_ERROR_INVALID,
150 _("File corrupted."));
155 cbr_files = g_strsplit (stdout, "\n", 0);
156 supported_extensions = get_supported_image_extensions ();
157 for (i = 0; cbr_files[i] != NULL; i++) {
158 gchar *suffix = g_strrstr (cbr_files[i], ".");
161 suffix = g_ascii_strdown (suffix + 1, -1);
163 if (g_slist_find_custom (supported_extensions, suffix,
164 (GCompareFunc) strcmp) != NULL) {
165 comics_document->page_names =
166 g_slist_insert_sorted (
167 comics_document->page_names,
168 g_strdup (g_strstrip (cbr_files[i])),
169 (GCompareFunc) strcmp);
170 comics_document->n_pages++;
178 g_strfreev (cbr_files);
179 g_slist_foreach (supported_extensions, (GFunc) g_free, NULL);
180 g_slist_free (supported_extensions);
182 if (comics_document->n_pages == 0) {
185 EV_DOCUMENT_ERROR_INVALID,
186 _("No images found in archive %s"),
196 comics_document_save (EvDocument *document,
200 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
202 return ev_xfer_uri_simple (comics_document->archive, uri, error);
206 comics_document_get_n_pages (EvDocument *document)
208 return COMICS_DOCUMENT (document)->n_pages;
212 comics_document_get_page_size (EvDocument *document,
217 GdkPixbufLoader *loader;
220 gboolean success, got_size = FALSE;
224 argv = extract_argv (document, page);
225 success = g_spawn_async_with_pipes (NULL, argv, NULL,
226 G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL,
229 NULL, &outpipe, NULL, NULL);
231 g_return_if_fail (success == TRUE);
233 loader = gdk_pixbuf_loader_new ();
234 g_signal_connect (loader, "area-prepared",
235 G_CALLBACK (get_page_size_area_prepared_cb),
238 while (outpipe >= 0) {
239 gssize bytes = read (outpipe, buf, 1024);
242 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
243 if (bytes <= 0 || got_size) {
246 gdk_pixbuf_loader_close (loader, NULL);
250 if (gdk_pixbuf_loader_get_pixbuf (loader)) {
251 GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
253 *width = gdk_pixbuf_get_width (pixbuf);
255 *height = gdk_pixbuf_get_height (pixbuf);
258 g_spawn_close_pid (child_pid);
259 g_object_unref (loader);
263 get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
266 gboolean *got_size = data;
271 comics_document_render_pixbuf (EvDocument *document,
274 GdkPixbufLoader *loader;
275 GdkPixbuf *rotated_pixbuf;
282 argv = extract_argv (document, rc->page);
283 success = g_spawn_async_with_pipes (NULL, argv, NULL,
285 | G_SPAWN_STDERR_TO_DEV_NULL,
288 NULL, &outpipe, NULL, NULL);
290 g_return_val_if_fail (success == TRUE, NULL);
292 loader = gdk_pixbuf_loader_new ();
293 g_signal_connect (loader, "size-prepared",
294 G_CALLBACK (render_pixbuf_size_prepared_cb), &rc->scale);
296 while (outpipe >= 0) {
297 gssize bytes = read (outpipe, buf, 4096);
300 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
301 } else if (bytes <= 0) {
303 gdk_pixbuf_loader_close (loader, NULL);
308 rotated_pixbuf = gdk_pixbuf_rotate_simple (gdk_pixbuf_loader_get_pixbuf (loader),
310 g_spawn_close_pid (child_pid);
311 g_object_unref (loader);
313 return rotated_pixbuf;
316 static cairo_surface_t *
317 comics_document_render (EvDocument *document,
321 cairo_surface_t *surface;
323 pixbuf = comics_document_render_pixbuf (document, rc);
324 surface = ev_document_misc_surface_from_pixbuf (pixbuf);
325 g_object_unref (pixbuf);
331 render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
336 double *scale = data;
337 int w = (width * (*scale) + 0.5);
338 int h = (height * (*scale) + 0.5);
340 gdk_pixbuf_loader_set_size (loader, w, h);
344 comics_document_finalize (GObject *object)
346 ComicsDocument *comics_document = COMICS_DOCUMENT (object);
348 if (comics_document->archive)
349 g_free (comics_document->archive);
351 if (comics_document->page_names) {
352 g_slist_foreach (comics_document->page_names,
353 (GFunc) g_free, NULL);
354 g_slist_free (comics_document->page_names);
357 if (comics_document->extract_command)
358 g_free (comics_document->extract_command);
360 G_OBJECT_CLASS (comics_document_parent_class)->finalize (object);
364 comics_document_class_init (ComicsDocumentClass *klass)
366 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
367 gobject_class->finalize = comics_document_finalize;
371 comics_document_can_get_text (EvDocument *document)
376 static EvDocumentInfo *
377 comics_document_get_info (EvDocument *document)
379 EvDocumentInfo *info;
380 info = g_new0 (EvDocumentInfo, 1);
385 comics_document_document_iface_init (EvDocumentIface *iface)
387 iface->load = comics_document_load;
388 iface->save = comics_document_save;
389 iface->can_get_text = comics_document_can_get_text;
390 iface->get_n_pages = comics_document_get_n_pages;
391 iface->get_page_size = comics_document_get_page_size;
392 iface->render = comics_document_render;
393 iface->get_info = comics_document_get_info;
397 comics_document_init (ComicsDocument *comics_document)
399 comics_document->archive = NULL;
400 comics_document->page_names = NULL;
401 comics_document->extract_command = NULL;
402 comics_document->n_pages = 0;
405 /* Returns a list of file extensions supported by gdk-pixbuf */
407 get_supported_image_extensions()
409 GSList *extensions = NULL;
410 GSList *formats = gdk_pixbuf_get_formats ();
413 for (l = formats; l != NULL; l = l->next) {
415 gchar **ext = gdk_pixbuf_format_get_extensions (l->data);
417 for (i = 0; ext[i] != NULL; i++) {
418 extensions = g_slist_append (extensions,
425 g_slist_free (formats);
430 comics_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
434 GdkPixbuf *thumbnail;
436 thumbnail = comics_document_render_pixbuf (EV_DOCUMENT (document), rc);
439 GdkPixbuf *tmp_pixbuf = thumbnail;
441 thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
442 g_object_unref (tmp_pixbuf);
449 comics_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
454 gdouble page_width, page_height;
456 comics_document_get_page_size (EV_DOCUMENT (document), rc->page,
457 &page_width, &page_height);
459 if (rc->rotation == 90 || rc->rotation == 270) {
460 *width = (gint) (page_height * rc->scale);
461 *height = (gint) (page_width * rc->scale);
463 *width = (gint) (page_width * rc->scale);
464 *height = (gint) (page_height * rc->scale);
469 comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
471 iface->get_thumbnail = comics_document_thumbnails_get_thumbnail;
472 iface->get_dimensions = comics_document_thumbnails_get_dimensions;
476 extract_argv (EvDocument *document, gint page)
478 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
480 char *command_line, *quoted_archive, *quoted_filename;
483 quoted_archive = g_shell_quote (comics_document->archive);
484 if (comics_document->regex_arg) {
485 quoted_filename = comics_regex_quote (
486 g_slist_nth_data (comics_document->page_names, page));
488 quoted_filename = g_shell_quote (
489 g_slist_nth_data (comics_document->page_names, page));
492 command_line = g_strdup_printf ("%s -- %s %s",
493 comics_document->extract_command,
497 g_shell_parse_argv (command_line, NULL, &argv, &err);
500 g_warning ("Error %s", err->message);
504 g_free (command_line);
505 g_free (quoted_archive);
506 g_free (quoted_filename);