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-lib.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 EV_BACKEND_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;
112 gchar *list_files_command = NULL, *std_out, *quoted_file;
119 comics_document->archive = g_filename_from_uri (uri, NULL, error);
120 if (!comics_document->archive)
123 mime_type = ev_file_get_mime_type (uri, FALSE, &err);
126 g_propagate_error (error, err);
128 g_set_error_literal (error,
130 EV_DOCUMENT_ERROR_INVALID,
131 _("Unknown MIME Type"));
137 quoted_file = g_shell_quote (comics_document->archive);
139 /* FIXME, use proper cbr/cbz mime types once they're
140 * included in shared-mime-info */
141 if (!strcmp (mime_type, "application/x-cbr") ||
142 !strcmp (mime_type, "application/x-rar")) {
143 comics_document->extract_command =
144 g_strdup ("unrar p -c- -ierr");
146 g_strdup_printf ("unrar vb -c- -- %s", quoted_file);
147 comics_document->regex_arg = FALSE;
148 } else if (!strcmp (mime_type, "application/x-cbz") ||
149 !strcmp (mime_type, "application/zip")) {
150 comics_document->extract_command =
151 g_strdup ("unzip -p -C");
153 g_strdup_printf ("zipinfo -1 -- %s", quoted_file);
154 comics_document->regex_arg = TRUE;
155 } else if (!strcmp (mime_type, "application/x-cb7")) {
156 comics_document->extract_command =
157 g_strdup ("7zr x -so");
159 g_strdup_printf ("7zr l -- %s", quoted_file);
160 comics_document->regex_arg = TRUE;
164 EV_DOCUMENT_ERROR_INVALID,
165 _("Not a comic book MIME type: %s"),
168 g_free (quoted_file);
173 g_free (quoted_file);
175 /* Get list of files in archive */
176 success = g_spawn_command_line_sync (list_files_command,
177 &std_out, NULL, &retval, error);
178 g_free (list_files_command);
182 } else if (retval != 0) {
183 g_set_error_literal (error,
185 EV_DOCUMENT_ERROR_INVALID,
186 _("File corrupted."));
190 /* FIXME: is this safe against filenames containing \n in the archive ? */
191 cbr_files = g_strsplit (std_out, "\n", 0);
195 g_set_error_literal (error,
197 EV_DOCUMENT_ERROR_INVALID,
198 _("No files in archive."));
202 supported_extensions = get_supported_image_extensions ();
203 for (i = 0; cbr_files[i] != NULL; i++) {
204 gchar *suffix = g_strrstr (cbr_files[i], ".");
207 suffix = g_ascii_strdown (suffix + 1, -1);
209 if (g_slist_find_custom (supported_extensions, suffix,
210 (GCompareFunc) strcmp) != NULL) {
211 comics_document->page_names =
212 g_slist_insert_sorted (
213 comics_document->page_names,
214 g_strdup (g_strstrip (cbr_files[i])),
215 (GCompareFunc) strcmp);
216 comics_document->n_pages++;
222 g_strfreev (cbr_files);
223 g_slist_foreach (supported_extensions, (GFunc) g_free, NULL);
224 g_slist_free (supported_extensions);
226 if (comics_document->n_pages == 0) {
229 EV_DOCUMENT_ERROR_INVALID,
230 _("No images found in archive %s"),
240 comics_document_save (EvDocument *document,
244 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
246 return ev_xfer_uri_simple (comics_document->archive, uri, error);
250 comics_document_get_n_pages (EvDocument *document)
252 return COMICS_DOCUMENT (document)->n_pages;
256 comics_document_get_page_size (EvDocument *document,
261 GdkPixbufLoader *loader;
264 gboolean success, got_size = FALSE;
268 argv = extract_argv (document, page->index);
269 success = g_spawn_async_with_pipes (NULL, argv, NULL,
270 G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL,
273 NULL, &outpipe, NULL, NULL);
275 g_return_if_fail (success == TRUE);
277 loader = gdk_pixbuf_loader_new ();
278 g_signal_connect (loader, "area-prepared",
279 G_CALLBACK (get_page_size_area_prepared_cb),
282 while (outpipe >= 0) {
283 gssize bytes = read (outpipe, buf, 1024);
286 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
287 if (bytes <= 0 || got_size) {
290 gdk_pixbuf_loader_close (loader, NULL);
294 if (gdk_pixbuf_loader_get_pixbuf (loader)) {
295 GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
297 *width = gdk_pixbuf_get_width (pixbuf);
299 *height = gdk_pixbuf_get_height (pixbuf);
302 g_spawn_close_pid (child_pid);
303 g_object_unref (loader);
307 get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
310 gboolean *got_size = data;
315 comics_document_render_pixbuf (EvDocument *document,
318 GdkPixbufLoader *loader;
319 GdkPixbuf *rotated_pixbuf;
326 argv = extract_argv (document, rc->page->index);
327 success = g_spawn_async_with_pipes (NULL, argv, NULL,
329 | G_SPAWN_STDERR_TO_DEV_NULL,
332 NULL, &outpipe, NULL, NULL);
334 g_return_val_if_fail (success == TRUE, NULL);
336 loader = gdk_pixbuf_loader_new ();
337 g_signal_connect (loader, "size-prepared",
338 G_CALLBACK (render_pixbuf_size_prepared_cb), &rc->scale);
340 while (outpipe >= 0) {
341 gssize bytes = read (outpipe, buf, 4096);
344 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
345 } else if (bytes <= 0) {
347 gdk_pixbuf_loader_close (loader, NULL);
352 rotated_pixbuf = gdk_pixbuf_rotate_simple (gdk_pixbuf_loader_get_pixbuf (loader),
354 g_spawn_close_pid (child_pid);
355 g_object_unref (loader);
357 return rotated_pixbuf;
360 static cairo_surface_t *
361 comics_document_render (EvDocument *document,
365 cairo_surface_t *surface;
367 pixbuf = comics_document_render_pixbuf (document, rc);
368 surface = ev_document_misc_surface_from_pixbuf (pixbuf);
369 g_object_unref (pixbuf);
375 render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
380 double *scale = data;
381 int w = (width * (*scale) + 0.5);
382 int h = (height * (*scale) + 0.5);
384 gdk_pixbuf_loader_set_size (loader, w, h);
388 comics_document_finalize (GObject *object)
390 ComicsDocument *comics_document = COMICS_DOCUMENT (object);
392 if (comics_document->archive)
393 g_free (comics_document->archive);
395 if (comics_document->page_names) {
396 g_slist_foreach (comics_document->page_names,
397 (GFunc) g_free, NULL);
398 g_slist_free (comics_document->page_names);
401 if (comics_document->extract_command)
402 g_free (comics_document->extract_command);
404 G_OBJECT_CLASS (comics_document_parent_class)->finalize (object);
408 comics_document_class_init (ComicsDocumentClass *klass)
410 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
411 gobject_class->finalize = comics_document_finalize;
414 static EvDocumentInfo *
415 comics_document_get_info (EvDocument *document)
417 EvDocumentInfo *info;
418 info = g_new0 (EvDocumentInfo, 1);
423 comics_document_document_iface_init (EvDocumentIface *iface)
425 iface->load = comics_document_load;
426 iface->save = comics_document_save;
427 iface->get_n_pages = comics_document_get_n_pages;
428 iface->get_page_size = comics_document_get_page_size;
429 iface->render = comics_document_render;
430 iface->get_info = comics_document_get_info;
434 comics_document_init (ComicsDocument *comics_document)
436 comics_document->archive = NULL;
437 comics_document->page_names = NULL;
438 comics_document->extract_command = NULL;
439 comics_document->n_pages = 0;
442 /* Returns a list of file extensions supported by gdk-pixbuf */
444 get_supported_image_extensions()
446 GSList *extensions = NULL;
447 GSList *formats = gdk_pixbuf_get_formats ();
450 for (l = formats; l != NULL; l = l->next) {
452 gchar **ext = gdk_pixbuf_format_get_extensions (l->data);
454 for (i = 0; ext[i] != NULL; i++) {
455 extensions = g_slist_append (extensions,
462 g_slist_free (formats);
467 comics_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
471 GdkPixbuf *thumbnail;
473 thumbnail = comics_document_render_pixbuf (EV_DOCUMENT (document), rc);
476 GdkPixbuf *tmp_pixbuf = thumbnail;
478 thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
479 g_object_unref (tmp_pixbuf);
486 comics_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
491 gdouble page_width, page_height;
493 comics_document_get_page_size (EV_DOCUMENT (document), rc->page,
494 &page_width, &page_height);
496 if (rc->rotation == 90 || rc->rotation == 270) {
497 *width = (gint) (page_height * rc->scale);
498 *height = (gint) (page_width * rc->scale);
500 *width = (gint) (page_width * rc->scale);
501 *height = (gint) (page_height * rc->scale);
506 comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
508 iface->get_thumbnail = comics_document_thumbnails_get_thumbnail;
509 iface->get_dimensions = comics_document_thumbnails_get_dimensions;
513 extract_argv (EvDocument *document, gint page)
515 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
517 char *command_line, *quoted_archive, *quoted_filename;
520 quoted_archive = g_shell_quote (comics_document->archive);
521 if (comics_document->regex_arg) {
522 quoted_filename = comics_regex_quote (
523 g_slist_nth_data (comics_document->page_names, page));
525 quoted_filename = g_shell_quote (
526 g_slist_nth_data (comics_document->page_names, page));
529 command_line = g_strdup_printf ("%s -- %s %s",
530 comics_document->extract_command,
534 g_shell_parse_argv (command_line, NULL, &argv, &err);
537 g_warning ("Error %s", err->message);
541 g_free (command_line);
542 g_free (quoted_archive);
543 g_free (quoted_filename);