diff options
Diffstat (limited to 'comics/comics-document.c')
| -rw-r--r-- | comics/comics-document.c | 509 |
1 files changed, 0 insertions, 509 deletions
diff --git a/comics/comics-document.c b/comics/comics-document.c deleted file mode 100644 index 7f53f85..0000000 --- a/comics/comics-document.c +++ /dev/null @@ -1,509 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ -/* - * Copyright (C) 2005, Teemu Tervo <teemu.tervo@gmx.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <unistd.h> -#include <string.h> -#include <glib/gi18n.h> -#include <libgnomevfs/gnome-vfs-mime-utils.h> - -#include "comics-document.h" -#include "ev-document-misc.h" -#include "ev-document-thumbnails.h" - -struct _ComicsDocumentClass -{ - GObjectClass parent_class; -}; - -struct _ComicsDocument -{ - GObject parent_instance; - - gchar *archive; - GSList *page_names; - int n_pages; - char *extract_command; - gboolean regex_arg; -}; - -typedef struct _ComicsDocumentClass ComicsDocumentClass; - -static void comics_document_document_iface_init (EvDocumentIface *iface); -static void comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); - -static GSList* get_supported_image_extensions (void); -static void get_page_size_area_prepared_cb (GdkPixbufLoader *loader, - gpointer data); -static void render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader, - gint width, - gint height, - gpointer data); -static char** extract_argv (EvDocument *document, - gint page); - - -G_DEFINE_TYPE_WITH_CODE ( - ComicsDocument, comics_document, G_TYPE_OBJECT, - { - G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, - comics_document_document_iface_init); - G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, - comics_document_document_thumbnails_iface_init); - } ); - -static char * -comics_regex_quote (const char *s) -{ - char *ret, *d; - - d = ret = g_malloc (strlen (s) * 2 + 3); - - *d++ = '\''; - - for (; *s; s++, d++) { - switch (*s) { - case '?': - case '|': - case '[': - case ']': - case '*': - case '\\': - case '\'': - *d++ = '\\'; - break; - } - *d = *s; - } - - *d++ = '\''; - *d = '\0'; - - return ret; -} - -static gboolean -comics_document_load (EvDocument *document, - const char *uri, - GError **error) -{ - ComicsDocument *comics_document = COMICS_DOCUMENT (document); - GSList *supported_extensions; - gchar *list_files_command = NULL, *stdout, *quoted_file, *mime_type; - gchar **cbr_files; - gboolean success; - int i, retval; - - comics_document->archive = g_filename_from_uri (uri, NULL, error); - g_return_val_if_fail (comics_document->archive != NULL, FALSE); - - quoted_file = g_shell_quote (comics_document->archive); - mime_type = gnome_vfs_get_mime_type (uri); - - /* FIXME, use proper cbr/cbz mime types once they're - * included in shared-mime-info */ - if (!strcmp (mime_type, "application/x-cbr")) { - comics_document->extract_command = - g_strdup ("unrar p -c- -ierr"); - list_files_command = - g_strdup_printf ("unrar vb -c- -- %s", quoted_file); - comics_document->regex_arg = FALSE; - } else if (!strcmp (mime_type, "application/x-cbz")) { - comics_document->extract_command = - g_strdup ("unzip -p -C"); - list_files_command = - g_strdup_printf ("zipinfo -1 -- %s", quoted_file); - comics_document->regex_arg = TRUE; - } - - g_free (quoted_file); - - /* Get list of files in archive */ - success = g_spawn_command_line_sync (list_files_command, - &stdout, NULL, &retval, error); - g_free (list_files_command); - - if (!success) { - g_free (mime_type); - return FALSE; - } else if (retval != 0) { - g_set_error (error, - EV_DOCUMENT_ERROR, - EV_DOCUMENT_ERROR_INVALID, - _("File corrupted.")); - g_free (mime_type); - return FALSE; - } - - cbr_files = g_strsplit (stdout, "\n", 0); - supported_extensions = get_supported_image_extensions (); - for (i = 0; cbr_files[i] != NULL; i++) { - gchar *suffix = g_strrstr (cbr_files[i], "."); - if (!suffix) - continue; - suffix = g_ascii_strdown (suffix + 1, -1); - - if (g_slist_find_custom (supported_extensions, suffix, - (GCompareFunc) strcmp) != NULL) { - comics_document->page_names = - g_slist_insert_sorted ( - comics_document->page_names, - g_strdup (g_strstrip (cbr_files[i])), - (GCompareFunc) strcmp); - comics_document->n_pages++; - } - - g_free (suffix); - } - - g_free (stdout); - g_free (mime_type); - g_strfreev (cbr_files); - g_slist_foreach (supported_extensions, (GFunc) g_free, NULL); - g_slist_free (supported_extensions); - - if (comics_document->n_pages == 0) { - g_set_error (error, - EV_DOCUMENT_ERROR, - EV_DOCUMENT_ERROR_INVALID, - _("No images found in archive %s"), - uri); - return FALSE; - } - - return TRUE; -} - - -static gboolean -comics_document_save (EvDocument *document, - const char *uri, - GError **error) -{ - ComicsDocument *comics_document = COMICS_DOCUMENT (document); - - return ev_xfer_uri_simple (comics_document->archive, uri, error); -} - -static int -comics_document_get_n_pages (EvDocument *document) -{ - return COMICS_DOCUMENT (document)->n_pages; -} - -static void -comics_document_get_page_size (EvDocument *document, - int page, - double *width, - double *height) -{ - GdkPixbufLoader *loader; - char **argv; - guchar buf[1024]; - gboolean success, got_size = FALSE; - gint outpipe = -1; - GPid child_pid = -1; - - argv = extract_argv (document, page); - success = g_spawn_async_with_pipes (NULL, argv, NULL, - G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL, - NULL, NULL, - &child_pid, - NULL, &outpipe, NULL, NULL); - g_strfreev (argv); - g_return_if_fail (success == TRUE); - - loader = gdk_pixbuf_loader_new (); - g_signal_connect (loader, "area-prepared", - G_CALLBACK (get_page_size_area_prepared_cb), - &got_size); - - while (outpipe >= 0) { - gssize bytes = read (outpipe, buf, 1024); - - if (bytes > 0) - gdk_pixbuf_loader_write (loader, buf, bytes, NULL); - if (bytes <= 0 || got_size) { - close (outpipe); - outpipe = -1; - gdk_pixbuf_loader_close (loader, NULL); - } - } - - if (gdk_pixbuf_loader_get_pixbuf (loader)) { - GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader); - if (width) - *width = gdk_pixbuf_get_width (pixbuf); - if (height) - *height = gdk_pixbuf_get_height (pixbuf); - } - - g_spawn_close_pid (child_pid); - g_object_unref (loader); -} - -static void -get_page_size_area_prepared_cb (GdkPixbufLoader *loader, - gpointer data) -{ - gboolean *got_size = data; - *got_size = TRUE; -} - -static GdkPixbuf * -comics_document_render_pixbuf (EvDocument *document, - EvRenderContext *rc) -{ - GdkPixbufLoader *loader; - GdkPixbuf *rotated_pixbuf; - char **argv; - guchar buf[4096]; - gboolean success; - gint outpipe = -1; - GPid child_pid = -1; - - argv = extract_argv (document, rc->page); - success = g_spawn_async_with_pipes (NULL, argv, NULL, - G_SPAWN_SEARCH_PATH - | G_SPAWN_STDERR_TO_DEV_NULL, - NULL, NULL, - &child_pid, - NULL, &outpipe, NULL, NULL); - g_strfreev (argv); - g_return_val_if_fail (success == TRUE, NULL); - - loader = gdk_pixbuf_loader_new (); - g_signal_connect (loader, "size-prepared", - G_CALLBACK (render_pixbuf_size_prepared_cb), &rc->scale); - - while (outpipe >= 0) { - gssize bytes = read (outpipe, buf, 4096); - - if (bytes > 0) { - gdk_pixbuf_loader_write (loader, buf, bytes, NULL); - } else if (bytes <= 0) { - close (outpipe); - gdk_pixbuf_loader_close (loader, NULL); - outpipe = -1; - } - } - - rotated_pixbuf = gdk_pixbuf_rotate_simple (gdk_pixbuf_loader_get_pixbuf (loader), - 360 - rc->rotation); - g_spawn_close_pid (child_pid); - g_object_unref (loader); - return rotated_pixbuf; -} - -static void -render_pixbuf_size_prepared_cb (GdkPixbufLoader *loader, - gint width, - gint height, - gpointer data) -{ - double *scale = data; - int w = width * (*scale); - int h = height * (*scale); - - gdk_pixbuf_loader_set_size (loader, w, h); -} - -static void -comics_document_finalize (GObject *object) -{ - ComicsDocument *comics_document = COMICS_DOCUMENT (object); - - if (comics_document->archive) - g_free (comics_document->archive); - - if (comics_document->page_names) { - g_slist_foreach (comics_document->page_names, - (GFunc) g_free, NULL); - g_slist_free (comics_document->page_names); - } - - if (comics_document->extract_command) - g_free (comics_document->extract_command); - - G_OBJECT_CLASS (comics_document_parent_class)->finalize (object); -} - -static void -comics_document_class_init (ComicsDocumentClass *klass) -{ - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - gobject_class->finalize = comics_document_finalize; -} - -static gboolean -comics_document_can_get_text (EvDocument *document) -{ - return FALSE; -} - -static EvDocumentInfo * -comics_document_get_info (EvDocument *document) -{ - EvDocumentInfo *info; - info = g_new0 (EvDocumentInfo, 1); - return info; -} - -static void -comics_document_document_iface_init (EvDocumentIface *iface) -{ - iface->load = comics_document_load; - iface->save = comics_document_save; - iface->can_get_text = comics_document_can_get_text; - iface->get_n_pages = comics_document_get_n_pages; - iface->get_page_size = comics_document_get_page_size; - iface->render_pixbuf = comics_document_render_pixbuf; - iface->get_info = comics_document_get_info; -} - -static void -comics_document_init (ComicsDocument *comics_document) -{ - comics_document->archive = NULL; - comics_document->page_names = NULL; - comics_document->extract_command = NULL; - comics_document->n_pages = 0; -} - -/* Returns a list of file extensions supported by gdk-pixbuf */ -static GSList* -get_supported_image_extensions() -{ - GSList *extensions = NULL; - GSList *formats = gdk_pixbuf_get_formats (); - GSList *l; - - for (l = formats; l != NULL; l = l->next) { - int i; - gchar **ext = gdk_pixbuf_format_get_extensions (l->data); - - for (i = 0; ext[i] != NULL; i++) { - extensions = g_slist_append (extensions, - g_strdup (ext[i])); - } - - g_strfreev (ext); - } - - g_slist_free (formats); - return extensions; -} - -static void -comics_document_thumbnails_get_geometry (EvDocumentThumbnails *document, - gint page, - gint suggested_width, - gint *width, - gint *height, - gdouble *scale_factor) -{ - gdouble orig_width, orig_height, scale; - - comics_document_get_page_size (EV_DOCUMENT (document), page, - &orig_width, &orig_height); - scale = suggested_width / orig_width; - - if (width) - *width = suggested_width; - if (height) - *height = orig_height * scale; - if (scale_factor) - *scale_factor = scale; -} - -static GdkPixbuf * -comics_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, - gint page, - gint rotation, - gint size, - gboolean border) -{ - GdkPixbuf *thumbnail, *framed; - gint thumb_width, thumb_height; - gdouble scale; - EvRenderContext *rc; - - comics_document_thumbnails_get_geometry (document, page, size, - &thumb_width, &thumb_height, - &scale); - - rc = ev_render_context_new (rotation, page, scale); - thumbnail = comics_document_render_pixbuf (EV_DOCUMENT (document), - rc); - g_object_unref (G_OBJECT (rc)); - - if (border) { - GdkPixbuf *tmp_pixbuf = thumbnail; - thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf); - g_object_unref (tmp_pixbuf); - } - - return thumbnail; -} - -static void -comics_document_thumbnails_get_dimensions (EvDocumentThumbnails *document, - gint page, - gint suggested_width, - gint *width, - gint *height) -{ - comics_document_thumbnails_get_geometry (document, page, - suggested_width, - width, height, NULL); -} - -static void -comics_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) -{ - iface->get_thumbnail = comics_document_thumbnails_get_thumbnail; - iface->get_dimensions = comics_document_thumbnails_get_dimensions; -} - -static char** -extract_argv (EvDocument *document, gint page) -{ - ComicsDocument *comics_document = COMICS_DOCUMENT (document); - char **argv; - char *command_line, *quoted_archive, *quoted_filename; - - quoted_archive = g_shell_quote (comics_document->archive); - if (comics_document->regex_arg) { - quoted_filename = comics_regex_quote ( - g_slist_nth_data (comics_document->page_names, page)); - } else { - quoted_filename = g_shell_quote ( - g_slist_nth_data (comics_document->page_names, page)); - } - - command_line = g_strdup_printf ("%s -- %s %s", - comics_document->extract_command, - quoted_archive, - quoted_filename); - g_shell_parse_argv (command_line, NULL, &argv, NULL); - - g_free (command_line); - g_free (quoted_archive); - g_free (quoted_filename); - return argv; -} |