static void
setup_helper_test(ViewHelperTest *test)
{
gpointer buf;
GeglRectangle rect = {0, 0, 512, 512};
/* Create a buffer, fill it with white */
test->buffer = gegl_buffer_new(&rect, babl_format("R'G'B' u8"));
buf = gegl_buffer_linear_open(test->buffer, NULL, NULL, babl_format("Y' u8"));
memset(buf, 255, rect.width * rect.height);
gegl_buffer_linear_close(test->buffer, buf);
/* Setup a graph with two nodes, one sourcing the buffer and a no-op */
test->graph = gegl_node_new();
test->loadbuf = gegl_node_new_child(test->graph,
"operation", "gegl:buffer-source",
"buffer", test->buffer, NULL);
test->out = gegl_node_new_child(test->graph, "operation", "gegl:nop", NULL);
gegl_node_link_many(test->loadbuf, test->out, NULL);
/* Setup the GeglView helper, hook up the output node to it */
test->helper = view_helper_new();
view_helper_set_node(test->helper, test->out);
}
/**
* gegl_gtk_view_set_node:
* @self: A #GeglGtkView
* @node: (transfer full)(allow-none): a #GeglNode instance or %NULL
*
* Change the #GeglNode to display
**/
void
gegl_gtk_view_set_node(GeglGtkView *self, GeglNode *node)
{
view_helper_set_node(GET_PRIVATE(self), node);
}