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.
25 #include <glib/gi18n.h>
28 #include "comics-document.h"
29 #include "ev-document-misc.h"
30 #include "ev-document-thumbnails.h"
31 #include "ev-file-helpers.h"
33 struct _ComicsDocumentClass
35 GObjectClass parent_class;
38 struct _ComicsDocument
40 GObject parent_instance;
45 char *extract_command;
49 typedef struct _ComicsDocumentClass ComicsDocumentClass;
51 static void comics_document_document_iface_init (EvDocumentIface *iface);
52 static void comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
54 static GSList* get_supported_image_extensions (void);
55 static void get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
57 static void render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
61 static char** extract_argv (EvDocument *document,
65 EV_BACKEND_REGISTER_WITH_CODE (ComicsDocument, comics_document,
67 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
68 comics_document_document_thumbnails_iface_init);
72 comics_regex_quote (const char *s)
76 d = ret = g_malloc (strlen (s) * 4 + 3);
80 for (; *s; s++, d++) {
106 comics_document_load (EvDocument *document,
110 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
111 GSList *supported_extensions;
113 GFileInfo *file_info;
114 gchar *list_files_command = NULL, *std_out, *quoted_file;
115 const gchar *mime_type = NULL;
120 comics_document->archive = g_filename_from_uri (uri, NULL, error);
121 g_return_val_if_fail (comics_document->archive != NULL, FALSE);
123 quoted_file = g_shell_quote (comics_document->archive);
124 file = g_file_new_for_uri (uri);
125 file_info = g_file_query_info (file,
126 G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
128 if (file_info != NULL) {
129 mime_type = g_file_info_get_content_type (file_info);
131 g_object_unref (file);
133 /* FIXME, use proper cbr/cbz mime types once they're
134 * included in shared-mime-info */
135 if (!strcmp (mime_type, "application/x-cbr")) {
136 comics_document->extract_command =
137 g_strdup ("unrar p -c- -ierr");
139 g_strdup_printf ("unrar vb -c- -- %s", quoted_file);
140 comics_document->regex_arg = FALSE;
141 } else if (!strcmp (mime_type, "application/x-cbz")) {
142 comics_document->extract_command =
143 g_strdup ("unzip -p -C");
145 g_strdup_printf ("zipinfo -1 -- %s", quoted_file);
146 comics_document->regex_arg = TRUE;
149 g_object_unref (file_info);
150 g_free (quoted_file);
152 /* Get list of files in archive */
153 success = g_spawn_command_line_sync (list_files_command,
154 &std_out, NULL, &retval, error);
155 g_free (list_files_command);
159 } else if (retval != 0) {
162 EV_DOCUMENT_ERROR_INVALID,
163 _("File corrupted."));
167 cbr_files = g_strsplit (std_out, "\n", 0);
168 supported_extensions = get_supported_image_extensions ();
169 for (i = 0; cbr_files[i] != NULL; i++) {
170 gchar *suffix = g_strrstr (cbr_files[i], ".");
173 suffix = g_ascii_strdown (suffix + 1, -1);
175 if (g_slist_find_custom (supported_extensions, suffix,
176 (GCompareFunc) strcmp) != NULL) {
177 comics_document->page_names =
178 g_slist_insert_sorted (
179 comics_document->page_names,
180 g_strdup (g_strstrip (cbr_files[i])),
181 (GCompareFunc) strcmp);
182 comics_document->n_pages++;
189 g_strfreev (cbr_files);
190 g_slist_foreach (supported_extensions, (GFunc) g_free, NULL);
191 g_slist_free (supported_extensions);
193 if (comics_document->n_pages == 0) {
196 EV_DOCUMENT_ERROR_INVALID,
197 _("No images found in archive %s"),
207 comics_document_save (EvDocument *document,
211 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
213 return ev_xfer_uri_simple (comics_document->archive, uri, error);
217 comics_document_get_n_pages (EvDocument *document)
219 return COMICS_DOCUMENT (document)->n_pages;
223 comics_document_get_page_size (EvDocument *document,
228 GdkPixbufLoader *loader;
231 gboolean success, got_size = FALSE;
235 argv = extract_argv (document, page);
236 success = g_spawn_async_with_pipes (NULL, argv, NULL,
237 G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL,
240 NULL, &outpipe, NULL, NULL);
242 g_return_if_fail (success == TRUE);
244 loader = gdk_pixbuf_loader_new ();
245 g_signal_connect (loader, "area-prepared",
246 G_CALLBACK (get_page_size_area_prepared_cb),
249 while (outpipe >= 0) {
250 gssize bytes = read (outpipe, buf, 1024);
253 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
254 if (bytes <= 0 || got_size) {
257 gdk_pixbuf_loader_close (loader, NULL);
261 if (gdk_pixbuf_loader_get_pixbuf (loader)) {
262 GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
264 *width = gdk_pixbuf_get_width (pixbuf);
266 *height = gdk_pixbuf_get_height (pixbuf);
269 g_spawn_close_pid (child_pid);
270 g_object_unref (loader);
274 get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
277 gboolean *got_size = data;
282 comics_document_render_pixbuf (EvDocument *document,
285 GdkPixbufLoader *loader;
286 GdkPixbuf *rotated_pixbuf;
293 argv = extract_argv (document, rc->page);
294 success = g_spawn_async_with_pipes (NULL, argv, NULL,
296 | G_SPAWN_STDERR_TO_DEV_NULL,
299 NULL, &outpipe, NULL, NULL);
301 g_return_val_if_fail (success == TRUE, NULL);
303 loader = gdk_pixbuf_loader_new ();
304 g_signal_connect (loader, "size-prepared",
305 G_CALLBACK (render_pixbuf_size_prepared_cb), &rc->scale);
307 while (outpipe >= 0) {
308 gssize bytes = read (outpipe, buf, 4096);
311 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
312 } else if (bytes <= 0) {
314 gdk_pixbuf_loader_close (loader, NULL);
319 rotated_pixbuf = gdk_pixbuf_rotate_simple (gdk_pixbuf_loader_get_pixbuf (loader),
321 g_spawn_close_pid (child_pid);
322 g_object_unref (loader);
324 return rotated_pixbuf;
327 static cairo_surface_t *
328 comics_document_render (EvDocument *document,
332 cairo_surface_t *surface;
334 pixbuf = comics_document_render_pixbuf (document, rc);
335 surface = ev_document_misc_surface_from_pixbuf (pixbuf);
336 g_object_unref (pixbuf);
342 render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
347 double *scale = data;
348 int w = (width * (*scale) + 0.5);
349 int h = (height * (*scale) + 0.5);
351 gdk_pixbuf_loader_set_size (loader, w, h);
355 comics_document_finalize (GObject *object)
357 ComicsDocument *comics_document = COMICS_DOCUMENT (object);
359 if (comics_document->archive)
360 g_free (comics_document->archive);
362 if (comics_document->page_names) {
363 g_slist_foreach (comics_document->page_names,
364 (GFunc) g_free, NULL);
365 g_slist_free (comics_document->page_names);
368 if (comics_document->extract_command)
369 g_free (comics_document->extract_command);
371 G_OBJECT_CLASS (comics_document_parent_class)->finalize (object);
375 comics_document_class_init (ComicsDocumentClass *klass)
377 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
378 gobject_class->finalize = comics_document_finalize;
381 static EvDocumentInfo *
382 comics_document_get_info (EvDocument *document)
384 EvDocumentInfo *info;
385 info = g_new0 (EvDocumentInfo, 1);
390 comics_document_document_iface_init (EvDocumentIface *iface)
392 iface->load = comics_document_load;
393 iface->save = comics_document_save;
394 iface->get_n_pages = comics_document_get_n_pages;
395 iface->get_page_size = comics_document_get_page_size;
396 iface->render = comics_document_render;
397 iface->get_info = comics_document_get_info;
401 comics_document_init (ComicsDocument *comics_document)
403 comics_document->archive = NULL;
404 comics_document->page_names = NULL;
405 comics_document->extract_command = NULL;
406 comics_document->n_pages = 0;
409 /* Returns a list of file extensions supported by gdk-pixbuf */
411 get_supported_image_extensions()
413 GSList *extensions = NULL;
414 GSList *formats = gdk_pixbuf_get_formats ();
417 for (l = formats; l != NULL; l = l->next) {
419 gchar **ext = gdk_pixbuf_format_get_extensions (l->data);
421 for (i = 0; ext[i] != NULL; i++) {
422 extensions = g_slist_append (extensions,
429 g_slist_free (formats);
434 comics_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
438 GdkPixbuf *thumbnail;
440 thumbnail = comics_document_render_pixbuf (EV_DOCUMENT (document), rc);
443 GdkPixbuf *tmp_pixbuf = thumbnail;
445 thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
446 g_object_unref (tmp_pixbuf);
453 comics_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
458 gdouble page_width, page_height;
460 comics_document_get_page_size (EV_DOCUMENT (document), rc->page,
461 &page_width, &page_height);
463 if (rc->rotation == 90 || rc->rotation == 270) {
464 *width = (gint) (page_height * rc->scale);
465 *height = (gint) (page_width * rc->scale);
467 *width = (gint) (page_width * rc->scale);
468 *height = (gint) (page_height * rc->scale);
473 comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
475 iface->get_thumbnail = comics_document_thumbnails_get_thumbnail;
476 iface->get_dimensions = comics_document_thumbnails_get_dimensions;
480 extract_argv (EvDocument *document, gint page)
482 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
484 char *command_line, *quoted_archive, *quoted_filename;
487 quoted_archive = g_shell_quote (comics_document->archive);
488 if (comics_document->regex_arg) {
489 quoted_filename = comics_regex_quote (
490 g_slist_nth_data (comics_document->page_names, page));
492 quoted_filename = g_shell_quote (
493 g_slist_nth_data (comics_document->page_names, page));
496 command_line = g_strdup_printf ("%s -- %s %s",
497 comics_document->extract_command,
501 g_shell_parse_argv (command_line, NULL, &argv, &err);
504 g_warning ("Error %s", err->message);
508 g_free (command_line);
509 g_free (quoted_archive);
510 g_free (quoted_filename);