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;
44 typedef struct _ComicsDocumentClass ComicsDocumentClass;
46 static void comics_document_document_iface_init (EvDocumentIface *iface);
47 static void comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
49 static GSList* get_supported_image_extensions (void);
50 static void get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
52 static void render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
56 static char** extract_argv (EvDocument *document,
60 G_DEFINE_TYPE_WITH_CODE (
61 ComicsDocument, comics_document, G_TYPE_OBJECT,
63 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
64 comics_document_document_iface_init);
65 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
66 comics_document_document_thumbnails_iface_init);
70 comics_document_load (EvDocument *document,
74 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
75 GSList *supported_extensions;
76 gchar *list_files_command = NULL, *stdout, *quoted_file, *mime_type;
81 comics_document->archive = g_filename_from_uri (uri, NULL, error);
82 g_return_val_if_fail (comics_document->archive != NULL, FALSE);
84 quoted_file = g_shell_quote (comics_document->archive);
85 mime_type = gnome_vfs_get_mime_type (uri);
87 /* FIXME, use proper cbr/cbz mime types once they're
88 * included in shared-mime-info */
89 if (!strcmp (mime_type, "application/x-cbr")) {
90 comics_document->extract_command =
91 g_strdup ("unrar p -c- -ierr");
93 g_strdup_printf ("unrar vb -c- -- %s", quoted_file);
94 } else if (!strcmp (mime_type, "application/x-cbz")) {
95 comics_document->extract_command =
96 g_strdup ("unzip -p -C");
98 g_strdup_printf ("zipinfo -1 -- %s", quoted_file);
101 g_free (quoted_file);
103 /* Get list of files in archive */
104 success = g_spawn_command_line_sync (list_files_command,
105 &stdout, NULL, &retval, error);
106 g_free (list_files_command);
111 } else if (retval != 0) {
114 EV_DOCUMENT_ERROR_INVALID,
115 _("File corrupted."));
120 cbr_files = g_strsplit (stdout, "\n", 0);
121 supported_extensions = get_supported_image_extensions ();
122 for (i = 0; cbr_files[i] != NULL; i++) {
123 gchar *suffix = g_strrstr (cbr_files[i], ".");
126 suffix = g_ascii_strdown (suffix + 1, -1);
128 if (g_slist_find_custom (supported_extensions, suffix,
129 (GCompareFunc) strcmp) != NULL) {
130 comics_document->page_names =
131 g_slist_insert_sorted (
132 comics_document->page_names,
133 g_strdup (g_strstrip (cbr_files[i])),
134 (GCompareFunc) strcmp);
135 comics_document->n_pages++;
143 g_strfreev (cbr_files);
144 g_slist_foreach (supported_extensions, (GFunc) g_free, NULL);
145 g_slist_free (supported_extensions);
147 if (comics_document->n_pages == 0) {
150 EV_DOCUMENT_ERROR_INVALID,
151 _("No images found in archive %s"),
161 comics_document_save (EvDocument *document,
165 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
167 return ev_xfer_uri_simple (comics_document->archive, uri, error);
171 comics_document_get_n_pages (EvDocument *document)
173 return COMICS_DOCUMENT (document)->n_pages;
177 comics_document_get_page_size (EvDocument *document,
182 GdkPixbufLoader *loader;
185 gboolean success, got_size = FALSE;
189 argv = extract_argv (document, page);
190 success = g_spawn_async_with_pipes (NULL, argv, NULL,
191 G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL,
194 NULL, &outpipe, NULL, NULL);
196 g_return_if_fail (success == TRUE);
198 loader = gdk_pixbuf_loader_new ();
199 g_signal_connect (loader, "area-prepared",
200 G_CALLBACK (get_page_size_area_prepared_cb),
203 while (outpipe >= 0) {
204 gssize bytes = read (outpipe, buf, 1024);
207 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
208 if (bytes <= 0 || got_size) {
211 gdk_pixbuf_loader_close (loader, NULL);
215 if (gdk_pixbuf_loader_get_pixbuf (loader)) {
216 GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
218 *width = gdk_pixbuf_get_width (pixbuf);
220 *height = gdk_pixbuf_get_height (pixbuf);
223 g_spawn_close_pid (child_pid);
224 g_object_unref (loader);
228 get_page_size_area_prepared_cb (GdkPixbufLoader *loader,
231 gboolean *got_size = data;
236 comics_document_render_pixbuf (EvDocument *document,
239 GdkPixbufLoader *loader;
240 GdkPixbuf *rotated_pixbuf;
247 argv = extract_argv (document, rc->page);
248 success = g_spawn_async_with_pipes (NULL, argv, NULL,
250 | G_SPAWN_STDERR_TO_DEV_NULL,
253 NULL, &outpipe, NULL, NULL);
255 g_return_val_if_fail (success == TRUE, NULL);
257 loader = gdk_pixbuf_loader_new ();
258 g_signal_connect (loader, "size-prepared",
259 G_CALLBACK (render_pixbuf_size_prepared_cb), &rc->scale);
261 while (outpipe >= 0) {
262 gssize bytes = read (outpipe, buf, 4096);
265 gdk_pixbuf_loader_write (loader, buf, bytes, NULL);
266 } else if (bytes <= 0) {
268 gdk_pixbuf_loader_close (loader, NULL);
273 rotated_pixbuf = gdk_pixbuf_rotate_simple (gdk_pixbuf_loader_get_pixbuf (loader),
275 g_spawn_close_pid (child_pid);
276 g_object_unref (loader);
277 return rotated_pixbuf;
281 render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader,
286 double *scale = data;
287 int w = width * (*scale);
288 int h = height * (*scale);
290 gdk_pixbuf_loader_set_size (loader, w, h);
294 comics_document_finalize (GObject *object)
296 ComicsDocument *comics_document = COMICS_DOCUMENT (object);
298 if (comics_document->archive)
299 g_free (comics_document->archive);
301 if (comics_document->page_names) {
302 g_slist_foreach (comics_document->page_names,
303 (GFunc) g_free, NULL);
304 g_slist_free (comics_document->page_names);
307 if (comics_document->extract_command)
308 g_free (comics_document->extract_command);
310 G_OBJECT_CLASS (comics_document_parent_class)->finalize (object);
314 comics_document_class_init (ComicsDocumentClass *klass)
316 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
317 gobject_class->finalize = comics_document_finalize;
321 comics_document_can_get_text (EvDocument *document)
326 static EvDocumentInfo *
327 comics_document_get_info (EvDocument *document)
329 EvDocumentInfo *info;
330 info = g_new0 (EvDocumentInfo, 1);
335 comics_document_document_iface_init (EvDocumentIface *iface)
337 iface->load = comics_document_load;
338 iface->save = comics_document_save;
339 iface->can_get_text = comics_document_can_get_text;
340 iface->get_n_pages = comics_document_get_n_pages;
341 iface->get_page_size = comics_document_get_page_size;
342 iface->render_pixbuf = comics_document_render_pixbuf;
343 iface->get_info = comics_document_get_info;
347 comics_document_init (ComicsDocument *comics_document)
349 comics_document->archive = NULL;
350 comics_document->page_names = NULL;
351 comics_document->extract_command = NULL;
352 comics_document->n_pages = 0;
355 /* Returns a list of file extensions supported by gdk-pixbuf */
357 get_supported_image_extensions()
359 GSList *extensions = NULL;
360 GSList *formats = gdk_pixbuf_get_formats ();
363 for (l = formats; l != NULL; l = l->next) {
365 gchar **ext = gdk_pixbuf_format_get_extensions (l->data);
367 for (i = 0; ext[i] != NULL; i++) {
368 extensions = g_slist_append (extensions,
375 g_slist_free (formats);
380 comics_document_thumbnails_get_geometry (EvDocumentThumbnails *document,
382 gint suggested_width,
385 gdouble *scale_factor)
387 gdouble orig_width, orig_height, scale;
389 comics_document_get_page_size (EV_DOCUMENT (document), page,
390 &orig_width, &orig_height);
391 scale = suggested_width / orig_width;
394 *width = suggested_width;
396 *height = orig_height * scale;
398 *scale_factor = scale;
402 comics_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
408 GdkPixbuf *thumbnail, *framed;
409 gint thumb_width, thumb_height;
413 comics_document_thumbnails_get_geometry (document, page, size,
414 &thumb_width, &thumb_height,
417 rc = ev_render_context_new (rotation, page, scale);
418 thumbnail = comics_document_render_pixbuf (EV_DOCUMENT (document),
420 g_object_unref (G_OBJECT (rc));
423 GdkPixbuf *tmp_pixbuf = thumbnail;
424 thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf);
425 g_object_unref (tmp_pixbuf);
432 comics_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
434 gint suggested_width,
438 comics_document_thumbnails_get_geometry (document, page,
440 width, height, NULL);
444 comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
446 iface->get_thumbnail = comics_document_thumbnails_get_thumbnail;
447 iface->get_dimensions = comics_document_thumbnails_get_dimensions;
451 extract_argv (EvDocument *document, gint page)
453 ComicsDocument *comics_document = COMICS_DOCUMENT (document);
455 char *command_line, *quoted_archive, *quoted_filename;
457 quoted_archive = g_shell_quote (comics_document->archive);
458 quoted_filename = g_shell_quote (
459 g_slist_nth_data (comics_document->page_names, page));
461 command_line = g_strdup_printf ("%s -- %s %s",
462 comics_document->extract_command,
465 g_shell_parse_argv (command_line, NULL, &argv, NULL);
467 g_free (command_line);
468 g_free (quoted_archive);
469 g_free (quoted_filename);