static GdkPixbuf *
pixbuf_from_data_with_size_data (const guchar * buff,
size_t len,
struct RsvgSizeCallbackData *data,
const char *base_uri,
const char *id,
GError ** error)
{
RsvgHandle *handle;
GdkPixbuf *retval;
handle = rsvg_handle_new ();
if (!handle) {
g_set_error (error, rsvg_error_quark (), 0, _("Error creating SVG reader"));
return NULL;
}
rsvg_handle_set_size_callback (handle, _rsvg_size_callback, data, NULL);
rsvg_handle_set_base_uri (handle, base_uri);
if (!rsvg_handle_write (handle, buff, len, error)) {
g_object_unref (G_OBJECT (handle));
return NULL;
}
if (!rsvg_handle_close (handle, error)) {
g_object_unref (G_OBJECT (handle));
return NULL;
}
retval = rsvg_handle_get_pixbuf_sub (handle, id);
g_object_unref (G_OBJECT (handle));
return retval;
}
xmlParserCtxtPtr rsvg_create_xml_parser_from_stream (xmlSAXHandlerPtr sax,
void *sax_user_data,
GInputStream *stream,
GCancellable *cancellable,
GError **error)
{
RsvgXmlInputStreamContext *context;
xmlParserCtxtPtr parser;
g_return_val_if_fail (G_IS_INPUT_STREAM (stream), NULL);
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), NULL);
g_return_val_if_fail (error != NULL, NULL);
context = g_slice_new (RsvgXmlInputStreamContext);
context->stream = g_object_ref (stream);
context->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
context->error = error;
parser = xmlCreateIOParserCtxt (sax,
sax_user_data,
context_read,
context_close,
context,
XML_CHAR_ENCODING_NONE);
if (!parser) {
g_set_error (error, rsvg_error_quark (), 0, _("Error creating XML parser"));
/* on error, xmlCreateIOParserCtxt() frees our context via the context_close function */
}
return parser;
}
static void
rsvg_propegate_error (GError ** err,
const char * reason,
gint code)
{
if (err) {
*err = NULL;
g_set_error (err, rsvg_error_quark (), code, "%s", reason);
}
}
