with histogram we have to redraw also when loading is finished */
if (osd->changed_states & IMAGE_STATE_IMAGE ||
(osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||
with histogram we have to redraw also when loading is finished */
if (osd->changed_states & IMAGE_STATE_IMAGE ||
(osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||