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) * 2 + 3);
79 for (; *s; s++, d++) {
101 comics_document_load (EvDocument *document,
105 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
106 GSList *supported_extensions;
107 gchar *list_files_command = NULL, *stdout, *quoted_file, *mime_type;
112 comics_document->archive = g_filename_from_uri (uri, NULL, error);
113 g_return_val_if_fail (comics_document->archive != NULL, FALSE);
115 quoted_file = g_shell_quote (comics_document->archive);
116 mime_type = gnome_vfs_get_mime_type (uri);
118 /* FIXME, use proper cbr/cbz mime types once they're
119 * included in shared-mime-info */
120 if (!strcmp (mime_type, "application/x-cbr")) {
121 comics_document->extract_command =
122 g_strdup ("unrar p -c- -ierr");
124 g_strdup_printf ("unrar vb -c- -- %s", quoted_file);
125 comics_document->regex_arg = FALSE;
126 } else if (!strcmp (mime_type, "application/x-cbz")) {
127 comics_document->extract_command =
128 g_strdup ("unzip -p -C");
130 g_strdup_printf ("zipinfo -1 -- %s", quoted_file);
131 comics_document->regex_arg = TRUE;
134 g_free (quoted_file);
136 /* Get list of files in archive */
137 success = g_spawn_command_line_sync (list_files_command,
138 &stdout, NULL, &retval, error);
139 g_free (list_files_command);
144 } else if (retval != 0) {
147 EV_DOCUMENT_ERROR_INVALID,
148 _("File corrupted."));
153 cbr_files = g_strsplit (stdout, "\n", 0);
154 supported_extensions = get_supported_image_extensions ();
155 for (i = 0; cbr_files[i] != NULL; i++) {
156 gchar *suffix = g_strrstr (cbr_files[i], ".");
159 suffix = g_ascii_strdown (suffix + 1, -1);
161 if (g_slist_find_custom (supported_extensions, suffix,
162 (GCompareFunc) strcmp) != NULL) {
163 comics_document->page_names =
164 g_slist_insert_sorted (
165 comics_document->page_names,
166 g_strdup (g_strstrip (cbr_files[i])),
167 (GCompareFunc) strcmp);
168 comics_document->n_pages++;
176 g_strfreev (cbr_files);
177 g_slist_foreach (supported_extensions, (GFunc) g_free, NULL);
178 g_slist_free (supported_extensions);
180 if (comics_document->n_pages == 0) {
183 EV_DOCUMENT_ERROR_INVALID,
184 _("No images found in archive %s"),
194 comics_document_save (EvDocument *document,
198 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
200 return ev_xfer_uri_simple (comics_document->archive, uri, error);
204 comics_document_get_n_pages (EvDocument *document)
206 return COMICS_DOCUMENT (document)->n_pages;
210 comics_document_get_page_size (EvDocument *document,
215 GdkPixbufLoader *loader;
218 gboolean success, got_size = FALSE;
222 argv = extract_argv (document, page);
223 success = g_spawn_async_with_pipes (NULL, argv, NULL,
224 G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL,
227 NULL, &outpipe, NULL, NULL);
229 g_return_if_fail (success == TRUE);
231 loader = gdk_pixbuf_loader_new ();
232 g_signal_connect (loader, "area-prepared",
233 G_CALLBACK (get_page_size_area_prepared_cb),
236 while (outpipe >= 0) {
237 gssize bytes = read (outpipe, buf, 1024);
240 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
241 if (bytes <= 0 || got_size) {
244 gdk_pixbuf_loader_close (loader, NULL);
248 if (gdk_pixbuf_loader_get_pixbuf (loader)) {
249 GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
251 *width = gdk_pixbuf_get_width (pixbuf);
253 *height = gdk_pixbuf_get_height (pixbuf);
256 g_spawn_close_pid (child_pid);
257 g_object_unref (loader);
261 get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
264 gboolean *got_size = data;
269 comics_document_render_pixbuf (EvDocument *document,
272 GdkPixbufLoader *loader;
273 GdkPixbuf *rotated_pixbuf;
280 argv = extract_argv (document, rc->page);
281 success = g_spawn_async_with_pipes (NULL, argv, NULL,
283 | G_SPAWN_STDERR_TO_DEV_NULL,
286 NULL, &outpipe, NULL, NULL);
288 g_return_val_if_fail (success == TRUE, NULL);
290 loader = gdk_pixbuf_loader_new ();
291 g_signal_connect (loader, "size-prepared",
292 G_CALLBACK (render_pixbuf_size_prepared_cb), &rc->scale);
294 while (outpipe >= 0) {
295 gssize bytes = read (outpipe, buf, 4096);
298 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
299 } else if (bytes <= 0) {
301 gdk_pixbuf_loader_close (loader, NULL);
306 rotated_pixbuf = gdk_pixbuf_rotate_simple (gdk_pixbuf_loader_get_pixbuf (loader),
308 g_spawn_close_pid (child_pid);
309 g_object_unref (loader);
310 return rotated_pixbuf;
314 render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
319 double *scale = data;
320 int w = width * (*scale);
321 int h = height * (*scale);
323 gdk_pixbuf_loader_set_size (loader, w, h);
327 comics_document_finalize (GObject *object)
329 ComicsDocument *comics_document = COMICS_DOCUMENT (object);
331 if (comics_document->archive)
332 g_free (comics_document->archive);
334 if (comics_document->page_names) {
335 g_slist_foreach (comics_document->page_names,
336 (GFunc) g_free, NULL);
337 g_slist_free (comics_document->page_names);
340 if (comics_document->extract_command)
341 g_free (comics_document->extract_command);
343 G_OBJECT_CLASS (comics_document_parent_class)->finalize (object);
347 comics_document_class_init (ComicsDocumentClass *klass)
349 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
350 gobject_class->finalize = comics_document_finalize;
354 comics_document_can_get_text (EvDocument *document)
359 static EvDocumentInfo *
360 comics_document_get_info (EvDocument *document)
362 EvDocumentInfo *info;
363 info = g_new0 (EvDocumentInfo, 1);
368 comics_document_document_iface_init (EvDocumentIface *iface)
370 iface->load = comics_document_load;
371 iface->save = comics_document_save;
372 iface->can_get_text = comics_document_can_get_text;
373 iface->get_n_pages = comics_document_get_n_pages;
374 iface->get_page_size = comics_document_get_page_size;
375 iface->render_pixbuf = comics_document_render_pixbuf;
376 iface->get_info = comics_document_get_info;
380 comics_document_init (ComicsDocument *comics_document)
382 comics_document->archive = NULL;
383 comics_document->page_names = NULL;
384 comics_document->extract_command = NULL;
385 comics_document->n_pages = 0;
388 /* Returns a list of file extensions supported by gdk-pixbuf */
390 get_supported_image_extensions()
392 GSList *extensions = NULL;
393 GSList *formats = gdk_pixbuf_get_formats ();
396 for (l = formats; l != NULL; l = l->next) {
398 gchar **ext = gdk_pixbuf_format_get_extensions (l->data);
400 for (i = 0; ext[i] != NULL; i++) {
401 extensions = g_slist_append (extensions,
408 g_slist_free (formats);
413 comics_document_thumbnails_get_geometry (EvDocumentThumbnails *document,
415 gint suggested_width,
418 gdouble *scale_factor)
420 gdouble orig_width, orig_height, scale;
422 comics_document_get_page_size (EV_DOCUMENT (document), page,
423 &orig_width, &orig_height);
424 scale = suggested_width / orig_width;
427 *width = suggested_width;
429 *height = orig_height * scale;
431 *scale_factor = scale;
435 comics_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
441 GdkPixbuf *thumbnail, *framed;
442 gint thumb_width, thumb_height;
446 comics_document_thumbnails_get_geometry (document, page, size,
447 &thumb_width, &thumb_height,
450 rc = ev_render_context_new (rotation, page, scale);
451 thumbnail = comics_document_render_pixbuf (EV_DOCUMENT (document),
453 g_object_unref (G_OBJECT (rc));
456 GdkPixbuf *tmp_pixbuf = thumbnail;
457 thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf);
458 g_object_unref (tmp_pixbuf);
465 comics_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
467 gint suggested_width,
471 comics_document_thumbnails_get_geometry (document, page,
473 width, height, NULL);
477 comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
479 iface->get_thumbnail = comics_document_thumbnails_get_thumbnail;
480 iface->get_dimensions = comics_document_thumbnails_get_dimensions;
484 extract_argv (EvDocument *document, gint page)
486 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
488 char *command_line, *quoted_archive, *quoted_filename;
490 quoted_archive = g_shell_quote (comics_document->archive);
491 if (comics_document->regex_arg) {
492 quoted_filename = comics_regex_quote (
493 g_slist_nth_data (comics_document->page_names, page));
495 quoted_filename = g_shell_quote (
496 g_slist_nth_data (comics_document->page_names, page));
499 command_line = g_strdup_printf ("%s -- %s %s",
500 comics_document->extract_command,
503 g_shell_parse_argv (command_line, NULL, &argv, NULL);
505 g_free (command_line);
506 g_free (quoted_archive);
507 g_free (quoted_filename);