inicial

1 files changed, 309 insertions, 0 deletions

diff --git a/thumbnailer/evince-thumbnailer.c b/thumbnailer/evince-thumbnailer.c
new file mode 100644
index 00000000..23ad92b0
--- /dev/null
+++ b/thumbnailer/evince-thumbnailer.c
@@ -0,0 +1,309 @@
+/*
+   Copyright (C) 2005 Fernando Herrera <[email protected]>
+
+   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 of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+
+#include <evince-document.h>
+
+#include <gio/gio.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef G_OS_WIN32
+#include <io.h>
+#include <conio.h>
+#if !(_WIN32_WINNT >= 0x0500)
+#error "_WIN32_WINNT must be defined >= 0x0500"
+#endif
+#include <windows.h>
+#endif
+
+#define THUMBNAIL_SIZE 128
+
+static gint size = THUMBNAIL_SIZE;
+static const gchar **file_arguments;
+
+static const GOptionEntry goption_options[] = {
+	{ "size", 's', 0, G_OPTION_ARG_INT, &size, NULL, "SIZE" },
+	{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &file_arguments, NULL, "<input> <ouput>" },
+	{ NULL }
+};
+
+struct AsyncData {
+	EvDocument  *document;
+	const gchar *output;
+	gint         size;
+	gboolean     success;
+};
+
+static void
+delete_temp_file (GFile *file)
+{
+	ev_tmp_file_unlink (file);
+	g_object_unref (file);
+}
+
+static EvDocument *
+evince_thumbnailer_get_document (GFile *file)
+{
+	EvDocument *document = NULL;
+	gchar      *uri;
+	GFile      *tmp_file = NULL;
+	GError     *error = NULL;
+
+	if (!g_file_is_native (file)) {
+		gchar *base_name, *template;
+
+		base_name = g_file_get_basename (file);
+		template = g_strdup_printf ("document.XXXXXX-%s", base_name);
+		g_free (base_name);
+
+		tmp_file = ev_mkstemp_file (template, &error);
+		g_free (template);
+		if (!tmp_file) {
+			g_printerr ("Error loading remote document: %s\n", error->message);
+			g_error_free (error);
+
+			return NULL;
+		}
+
+		g_file_copy (file, tmp_file, G_FILE_COPY_OVERWRITE,
+			     NULL, NULL, NULL, &error);
+		if (error) {
+			g_printerr ("Error loading remote document: %s\n", error->message);
+			g_error_free (error);
+			g_object_unref (tmp_file);
+
+			return NULL;
+		}
+		uri = g_file_get_uri (tmp_file);
+	} else {
+		uri = g_file_get_uri (file);
+	}
+
+	document = ev_document_factory_get_document (uri, &error);
+	if (tmp_file) {
+		if (document) {
+			g_object_weak_ref (G_OBJECT (document),
+					   (GWeakNotify)delete_temp_file,
+					   tmp_file);
+		} else {
+			ev_tmp_file_unlink (tmp_file);
+			g_object_unref (tmp_file);
+		}
+	}
+	g_free (uri);
+	if (error) {
+		if (error->domain == EV_DOCUMENT_ERROR &&
+		    error->code == EV_DOCUMENT_ERROR_ENCRYPTED) {
+			/* FIXME: Create a thumb for cryp docs */
+			g_error_free (error);
+			return NULL;
+		}
+		g_printerr ("Error loading document: %s\n", error->message);
+		g_error_free (error);
+		return NULL;
+	}
+
+	return document;
+}
+
+static gboolean
+evince_thumbnail_pngenc_get (EvDocument *document, const char *thumbnail, int size)
+{
+	EvRenderContext *rc;
+	double width, height;
+	GdkPixbuf *pixbuf;
+	EvPage *page;
+
+	page = ev_document_get_page (document, 0);
+	
+	ev_document_get_page_size (document, 0, &width, &height);
+
+	rc = ev_render_context_new (page, 0, size / width);
+	pixbuf = ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (document),
+						       rc, FALSE);
+	g_object_unref (rc);
+	g_object_unref (page);
+	
+	if (pixbuf != NULL) {
+		const char *overlaid_icon_name = NULL;
+
+		if (overlaid_icon_name) {
+			GdkPixbuf *overlaid_pixbuf;
+
+#ifdef G_OS_WIN32
+			gchar *dir = g_win32_get_package_installation_directory_of_module (NULL);
+			gchar *overlaid_icon_path = g_build_filename (dir, "share", "evince", overlaid_icon_name, NULL);
+			g_free (dir);
+#else
+			gchar *overlaid_icon_path = g_strdup_printf ("%s/%s", EVINCEDATADIR, overlaid_icon_name);
+#endif
+			overlaid_pixbuf = gdk_pixbuf_new_from_file (overlaid_icon_path, NULL);
+			g_free (overlaid_icon_path);
+			if (overlaid_pixbuf != NULL) {
+				int delta_height, delta_width;
+				
+				delta_width = gdk_pixbuf_get_width (pixbuf) -
+					gdk_pixbuf_get_width (overlaid_pixbuf);
+				delta_height = gdk_pixbuf_get_height (pixbuf) -
+					gdk_pixbuf_get_height (overlaid_pixbuf);
+				
+				gdk_pixbuf_composite (overlaid_pixbuf, pixbuf,
+						      delta_width, delta_height,
+						      gdk_pixbuf_get_width (overlaid_pixbuf),
+						      gdk_pixbuf_get_height (overlaid_pixbuf),
+						      delta_width, delta_height,
+						      1, 1,
+						      GDK_INTERP_NEAREST, 100);
+				
+				g_object_unref  (overlaid_pixbuf);
+			}
+		}
+		
+		if (gdk_pixbuf_save (pixbuf, thumbnail, "png", NULL, NULL)) {
+			g_object_unref  (pixbuf);
+			return TRUE;
+		}
+
+		g_object_unref  (pixbuf);
+	}
+	
+	return FALSE;
+}
+
+static gpointer
+evince_thumbnail_pngenc_get_async (struct AsyncData *data)
+{
+	ev_document_doc_mutex_lock ();
+	data->success = evince_thumbnail_pngenc_get (data->document,
+						     data->output,
+						     data->size);
+	ev_document_doc_mutex_unlock ();
+	
+	g_idle_add ((GSourceFunc)gtk_main_quit, NULL);
+	
+	return NULL;
+}
+
+static void
+print_usage (GOptionContext *context)
+{
+	gchar *help;
+
+	help = g_option_context_get_help (context, TRUE, NULL);
+	g_print ("%s", help);
+	g_free (help);
+}
+
+int
+main (int argc, char *argv[])
+{
+	EvDocument     *document;
+	GOptionContext *context;
+	const char     *input;
+	const char     *output;
+	GFile          *file;
+	GError         *error = NULL;
+
+	context = g_option_context_new ("- MATE Document Thumbnailer");
+	g_option_context_add_main_entries (context, goption_options, NULL);
+
+	if (!g_option_context_parse (context, &argc, &argv, &error)) {
+		g_printerr ("%s\n", error->message);
+		g_error_free (error);
+		print_usage (context);
+		g_option_context_free (context);
+
+		return -1;
+	}
+
+	input = file_arguments ? file_arguments[0] : NULL;
+	output = input ? file_arguments[1] : NULL;
+	if (!input || !output) {
+		print_usage (context);
+		g_option_context_free (context);
+
+		return -1;
+	}
+	
+	g_option_context_free (context);
+
+	if (size < 1) {
+		g_print ("Size cannot be smaller than 1 pixel\n");
+		return -1;
+	}
+
+	input = file_arguments[0];
+	output = file_arguments[1];
+
+	g_type_init ();
+
+	if (!g_thread_supported ())
+		g_thread_init (NULL);
+
+        if (!ev_init ())
+                return -1;
+
+	file = g_file_new_for_commandline_arg (input);
+	document = evince_thumbnailer_get_document (file);
+	g_object_unref (file);
+
+	if (!document) {
+		ev_shutdown ();
+		return -2;
+	}
+
+	if (!EV_IS_DOCUMENT_THUMBNAILS (document)) {
+		g_object_unref (document);
+		ev_shutdown ();
+		return -2;
+	}
+
+	if (EV_IS_ASYNC_RENDERER (document)) {
+		struct AsyncData data;
+
+		gtk_init (&argc, &argv);
+		
+		data.document = document;
+		data.output = output;
+		data.size = size;
+
+		g_thread_create ((GThreadFunc) evince_thumbnail_pngenc_get_async,
+				 &data, FALSE, NULL);
+		
+		gtk_main ();
+
+		g_object_unref (document);
+		ev_shutdown ();
+
+		return data.success ? 0 : -2;
+	}
+
+	if (!evince_thumbnail_pngenc_get (document, output, size)) {
+		g_object_unref (document);
+		ev_shutdown ();
+		return -2;
+	}
+
+	g_object_unref (document);
+        ev_shutdown ();
+
+	return 0;
+}