+++ /dev/null
-/* -*- 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 <libgnomevfs/gnome-vfs-xfer.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;
-};
-
-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 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);
- } 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);
- }
-
- 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);
- GnomeVFSURI *source, *target;
- GnomeVFSResult ret;
-
- source = gnome_vfs_uri_new (comics_document->archive);
- target = gnome_vfs_uri_new (uri);
-
- ret = gnome_vfs_xfer_uri (source, target,
- GNOME_VFS_XFER_DEFAULT,
- GNOME_VFS_XFER_ERROR_MODE_ABORT,
- GNOME_VFS_XFER_OVERWRITE_MODE_REPLACE,
- NULL, NULL);
-
- gnome_vfs_uri_unref (source);
- gnome_vfs_uri_unref (target);
-
- return ret == GNOME_VFS_OK;
-}
-
-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);
- 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;
-}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff