static GsfDocMetaData *
get_meta_data (GsfInfile *infile, const char *filename)
{
GsfDocMetaData *meta_data = gsf_doc_meta_data_new ();
if (GSF_IS_INFILE_MSOLE (infile)) {
GsfInput *in;
GError *err;
in = gsf_infile_child_by_name (infile, "\05SummaryInformation");
if (NULL != in) {
err = gsf_msole_metadata_read (in, meta_data);
if (err != NULL) {
g_warning ("'%s' error: %s", filename, err->message);
g_error_free (err);
err = NULL;
}
g_object_unref (G_OBJECT (in));
}
in = gsf_infile_child_by_name (infile, "\05DocumentSummaryInformation");
if (NULL != in) {
err = gsf_msole_metadata_read (in, meta_data);
if (err != NULL) {
g_warning ("'%s' error: %s", filename, err->message);
g_error_free (err);
err = NULL;
}
g_object_unref (G_OBJECT (in));
}
}
return meta_data;
}
static void
msole_thumbnail (GsfInfile *infile, const char *out_filename, int thumb_size)
{
GsfInput *summary_stream;
GsfDocMetaData *meta_data;
GsfDocProp *thumb_doc_prop;
GValue const *thumb_value;
GsfClipData *clip_data;
GsfClipFormat clip_format;
gconstpointer data;
gsize size;
GError *error;
summary_stream = gsf_infile_child_by_name (infile, "\05SummaryInformation");
if (!summary_stream)
show_error_string_and_exit ("Could not find the SummaryInformation stream");
meta_data = gsf_doc_meta_data_new ();
error = gsf_msole_metadata_read (summary_stream, meta_data);
if (error)
show_error_and_exit (error);
thumb_doc_prop = gsf_doc_meta_data_lookup (meta_data, GSF_META_NAME_THUMBNAIL);
if (!thumb_doc_prop)
show_error_string_and_exit ("The metadata does not have a thumbnail property");
thumb_value = gsf_doc_prop_get_val (thumb_doc_prop);
if (!thumb_value)
show_error_string_and_exit ("We got the thumbnail property, but it didn't have a value!?");
clip_data = GSF_CLIP_DATA (g_value_get_object (thumb_value));
clip_format = gsf_clip_data_get_format (clip_data);
if (clip_format == GSF_CLIP_FORMAT_WINDOWS_CLIPBOARD) {
GsfClipFormatWindows win_format;
error = NULL;
win_format = gsf_clip_data_get_windows_clipboard_format (clip_data, &error);
if (win_format == GSF_CLIP_FORMAT_WINDOWS_ERROR)
show_error_and_exit (error);
}
error = NULL;
data = gsf_clip_data_peek_real_data (clip_data, &size, &error);
if (!data)
show_error_and_exit (error);
write_thumbnail (out_filename, data, size, thumb_size);
g_object_unref (clip_data);
g_object_unref (meta_data);
g_object_unref (summary_stream);
}
static void print_summary_stream (GsfInfile * msole,
const char * file_name,
const char * stream_name,
GHashTable * human_readable_names)
{
GsfInput * stream = gsf_infile_child_by_name (msole, stream_name);
if (stream != NULL) {
GsfDocMetaData *meta_data = gsf_doc_meta_data_new ();
GError *err = NULL;
err = gsf_msole_metadata_read (stream, meta_data);
if (err != NULL) {
g_warning ("Error getting metadata for %s->%s: %s",
file_name, stream_name, err->message);
g_error_free (err);
err = NULL;
} else
gsf_doc_meta_data_foreach (meta_data,
(GHFunc) cb_print_property, human_readable_names);
g_object_unref (meta_data);
g_object_unref (G_OBJECT (stream));
}
}
