#define _(msgid) gettext (msgid)
void
-xrchart_draw_roc (const struct chart_item *chart_item, cairo_t *cr,
+xrchart_draw_roc (const struct chart *chart, cairo_t *cr,
struct xrchart_geometry *geom)
{
- const struct roc_chart *rc = to_roc_chart (chart_item);
+ const struct roc_chart *rc = to_roc_chart (chart);
size_t i;
xrchart_write_title (cr, geom, _("ROC Curve"));
xrchart_write_xlabel (cr, geom, _("1 - Specificity"));
xrchart_write_ylabel (cr, geom, _("Sensitivity"));
- xrchart_write_xscale (cr, geom, 0, 1);
- xrchart_write_yscale (cr, geom, 0, 1);
+ if (! xrchart_write_xscale (cr, geom, 0, 1))
+ return;
+ if (! xrchart_write_yscale (cr, geom, 0, 1))
+ return;
if (rc->reference)
{